CN115474160A - Indication method and device for cluster system message update - Google Patents

Indication method and device for cluster system message update Download PDF

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CN115474160A
CN115474160A CN202110653594.6A CN202110653594A CN115474160A CN 115474160 A CN115474160 A CN 115474160A CN 202110653594 A CN202110653594 A CN 202110653594A CN 115474160 A CN115474160 A CN 115474160A
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cluster
system message
trunking
paging
dci format
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CN115474160B (en
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吕征南
周欣
李晓华
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Potevio Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel

Abstract

The invention provides an indication method and a device for updating cluster system messages, wherein the method comprises the following steps: and under the condition that the trunking system message is changed, sending a paging message for updating the trunking system message to the trunking terminal at all trunking paging moments in a trunking system message modification period. The invention can realize that the cluster terminal receives the paging message updated by the cluster system message at the appointed time, effectively reduces the whole paging time of the members in the cluster group, reduces the air interface resource expense, has no influence on the system message update of the standard 5G terminal based on the 5G cluster communication system, and simultaneously achieves certain energy-saving effect.

Description

Indication method and device for cluster system message update
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for indicating a cluster system message update.
Background
The trunking communication system is a special wireless communication system developed for meeting the demand of industry command and dispatch and applied to various industries, and is widely applied to the fields of public safety, transportation, petrochemical industry, industry and commerce and military. With fifth generation mobile communications (the 5) th generation, 5G), the cluster system evolves to better meet the requirementsThe requirement of industrial users for novel broadband multimedia trunking services.
The cluster function is added on the basis of 5G, so that the 5G private network has the advantages of large bandwidth, wide connection, low time delay, high safety and the like. The trunking group call service is a point-to-multipoint service, including trunking voice group call service and trunking video group call service, etc., as a very important service in trunking communication systems, and the industry users require to implement fast call establishment. 5G requires that a User Equipment (UE) in any Radio Resource Control (RRC) state can answer a group call, so trunking paging is an essential process in the process of establishing the group call.
Currently, in a 5G New Radio (NR) communication system, a paging application scenario includes paging initiated by a core network, paging initiated by a Base station (gNB), and notification of system message update initiated by a gNB. In the 5G NR communication System, the content of a System message is divided into a Master Information Block (MIB), an SIB1, and an SIBn according to a mode of defining the System Information Block (SIB), where n is an integer, and the specific content of the SIB is shown in table 1.
TABLE 1 SIB CONTENT FOR 5G NR COMMUNICATION SYSTEMS
Figure BDA0003112838470000021
In The case that The 5G NR communication system needs to update The system message, the third Generation Partnership project (3 gpp) 5G related protocol specifies that The UE is notified of The system message update by means of a paging message, and The UE receiving The paging message typically acquires a new system message in The next update period, except SIB6-SIB 8. One update period is an integer multiple of the default paging period. A Paging message for updating a system message is carried on a Physical Downlink Control Channel (PDCCH), and is called a short message in a 5G system, which indicates that the UE obtains a system message change indication by receiving Downlink Control Information (DCI) scrambled by a Paging Radio Network Temporary Identifier (P-RNTI).
In the related protocol 3GPP 5G, fields in DCI format 1 _0scrambled by P-RNTI comprise: short message indicators (Short Messages indicators) occupying 2bits (as shown in table 2), short Messages (Short Messages) occupying 8bits (as shown in table 3), and Short Messages occupying 2bits
Figure BDA0003112838470000031
The resource allocation method comprises the following steps of frequency domain resource allocation, time domain resource allocation occupying 4bits, mapping from Virtual Resource Block (VRB) occupying 1bit to Physical Resource Block (PRB), modulation and Coding Scheme (MCS) occupying 5bits, transmission block scaling factor occupying 2bits and reserved bits. Wherein, the first and the second end of the pipe are connected with each other,
Figure BDA0003112838470000032
is the size of CORESET0, if the reserved bit is the cell operation of shared spectrum channel access, it is 8bits, otherwise it is 6bits. As can be seen from table 3, the system update message uses only 3bits.
Table 2 short message indication
Bits field Short message indication
00 Reserved bit
01 Scheduling information for paging only in DCI
10 Only short messages in DCI
11 Scheduling information and short message for paging are simultaneously available in DCI
TABLE 3 short message
Figure BDA0003112838470000041
In addition, the 5G NR communication system defines a point of time when the UE in a different RRC state attempts to obtain a system message change instruction. The method comprises the steps that a UE in an RRC _ IDLE state or an RRC _ INACTIVE state monitors DCI scrambled by P-RNTI at the time point of receiving paging information so as to obtain a system information change instruction, and the UE in a Radio Resource Control Connected (RRC _ CONNECTED) state monitors the DCI scrambled by the P-RNTI at any paging occasion in a paging cycle so as to obtain the system information change instruction, wherein the time point can be the paging time point of other UEs.
The 5G-based trunking communication system has trunking related system message updating, and the terminals in the trunking communication system comprise terminals supporting trunking functions and standard 5G terminals, so how to quickly notify the trunking terminals to obtain trunking related system message updating without affecting the standard 5G terminals becomes a problem to be solved urgently.
Disclosure of Invention
The invention provides a method and a device for indicating message update of a cluster system, which are used for solving the problem of how to quickly inform a cluster terminal to obtain the message update of the cluster related system without influencing a standard 5G terminal.
In a first aspect, the present invention provides an indication method for updating a cluster system message, which is applied to a network device, and includes:
under the condition that the cluster system message is changed, sending a paging message for updating the cluster system message to the cluster terminal at all cluster paging moments in a cluster system message modification period;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
In one embodiment, the trunking system message modification period is an integer multiple of a trunking paging period.
In an embodiment, the DCI format is a first DCI format scrambled by TP-RNTI, the first DCI format is obtained by extending DCI format 1_0 scrambled by paging radio network temporary identifier P-RNTI, and the trunking system message update is indicated by a reserved bit in a short message field in the first DCI format.
In one embodiment, the DCI format is a second DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the second DCI format;
wherein fields included in the second DCI format include:
the method comprises the steps of cluster system message updating indication, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRB to physical resource blocks PRB, and modulation and coding scheme MCS.
In one embodiment, the DCI format is a third DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the third DCI format;
wherein fields included in the third DCI format include:
the method comprises the steps of cluster system message updating indication, a cluster Value Tag Trunk Value Tag, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRBs to physical resource blocks PRBs, and modulation and coding scheme MCS.
In one embodiment, the DCI format is a fourth DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a reserved bit in a trunking short message field in the fourth DCI format;
wherein fields included in the fourth DCI format include:
the method comprises the steps of cluster short message indication, cluster short messages, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRB to physical resource blocks PRB, and modulation and coding modes MCS.
In a second aspect, the present invention provides an indication method for updating a cluster system message, which is applied to a cluster terminal and includes:
monitoring a paging message updated by a cluster system message at a cluster paging moment;
and the trunking system message updates DCI (downlink control information) indication scrambled by a trunking paging radio network temporary identifier (TP-RNTI).
In a third aspect, the present invention provides an apparatus for indicating a cluster system message update, including:
a sending unit, configured to send a paging message for updating a trunking system message to a trunking terminal at all trunking paging times in a trunking system message modification period when the trunking system message is changed;
and the trunking system message updates DCI (downlink control information) indication scrambled by a trunking paging radio network temporary identifier (TP-RNTI).
In a fourth aspect, the present invention provides an apparatus for indicating a cluster system message update, including:
the monitoring unit is used for monitoring the paging message updated by the cluster system message at the cluster paging moment;
and the trunking system message updates DCI (downlink control information) indication scrambled by a trunking paging radio network temporary identifier (TP-RNTI).
In a fifth aspect, the present invention provides a network device, which includes a processor and a memory storing a computer program, where the processor implements the steps of the method for indicating a cluster system message update in the first aspect when executing the computer program.
In a sixth aspect, the present invention provides a cluster terminal, including a processor and a memory storing a computer program, where the processor implements the steps of the indication method for updating the cluster system message in the second aspect when executing the computer program.
The indication method and the device for the cluster system message update provided by the invention have the advantages that under the condition that the cluster system message is changed, the network equipment sends the paging message of the cluster system message update to the cluster terminal at all cluster paging moments in the cluster system message modification period, the cluster terminal can receive the paging message of the cluster system message update at the specified moment, the integral paging time of members in a cluster group is effectively shortened, the air interface resource overhead is reduced, the system message update of a standard 5G terminal accessed to a 5G-based cluster communication system is not influenced, and a certain energy-saving effect is achieved.
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In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of an indication method for a cluster system message update provided in the present invention;
FIG. 2 is a second schematic flowchart of a method for indicating message update of a cluster system according to the present invention;
FIG. 3 is a schematic view of a scenario of an indication method for message update of a cluster system according to the present invention;
fig. 4 is one of schematic structural diagrams of an indication apparatus for a cluster system message update provided by the present invention;
fig. 5 is a second schematic structural diagram of an indication apparatus for message update of the trunking system provided in the present invention;
fig. 6 is a schematic structural diagram of a network device provided in the present invention;
fig. 7 is a schematic structural diagram of a trunking terminal provided by the present invention;
fig. 8 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problem how to quickly notify the cluster terminal to obtain the cluster related system message update without affecting the standard 5G terminal, an embodiment of the present invention provides an indication method for cluster system message update, and fig. 1 is one of flow diagrams of the indication method for cluster system message update provided by the embodiment of the present invention. As shown in fig. 1, in the indication method for updating a cluster system message provided by the present invention, an execution subject may be a network device, and the method includes:
step 100, under the condition that the cluster system message is changed, sending a paging message for updating the cluster system message to the cluster terminal at all cluster paging moments in the cluster system message modification period.
It should be noted that, the 5G-based trunking communication system support terminal includes a trunking terminal and a standard 5G terminal, and for a change of a non-trunking system message sent to the standard 5G terminal, the method related to the 5G NR communication system in the prior art is adopted, and for a change of a trunking system message sent by a network device to the trunking terminal, the method of the embodiment of the present invention is adopted.
Wherein the network device comprises a base station.
The cluster system message is used to indicate a system information block of cluster related information.
The non-clustered system message is used to indicate a system information block of non-clustered related information.
The cluster terminal is a terminal supporting a cluster function.
Optionally, the trunking system message modification period is an integer multiple of a trunking paging period.
It should be noted that the trunking system message modification period is an integer multiple of the trunking paging period, and a specific integer multiple value is configured to the trunking terminal by the network through a trunking modification period coefficient (modificationPeriodCoeff _ Trunk) parameter carried by the trunking system message, so that the trunking system message modification period in the 5G trunking communication system is different from the change periods of other non-trunking system messages, and the trunking terminal is ensured to acquire trunking system message updates more quickly.
In one embodiment, when a trunking system message is changed, at all trunking paging times in a trunking system message modification period, a network device sends a paging message for updating the trunking system message to a trunking terminal, where the trunking system message modification period is an integer multiple of the trunking paging period.
The indication method for updating the cluster system message provided by the embodiment of the invention has the advantages that under the condition that the cluster system message is changed, the network equipment sends the paging message for updating the cluster system message to the cluster terminal at all cluster paging moments in the cluster system message modification period, the cluster system message modification period is integral multiple of the cluster paging period, the cluster terminal can receive the paging message for updating the cluster system message at the specified moment, the integral paging time of members in a cluster group is effectively reduced, the air interface resource overhead is reduced, the influence on the system message updating of a standard 5G terminal is avoided, and a certain energy-saving effect is achieved.
Based on any of the embodiments, the DCI format is a first DCI format scrambled by TP-RNTI, the first DCI format is obtained by expanding DCI format 1_0 scrambled by paging radio network temporary identifier P-RNTI, and the trunking system message update is indicated by a reserved bit in a short message field in the first DCI format.
It should be noted that, the trunking system message update is indicated to the trunking terminal through a first DCI format scrambled by a trunking paging radio Network Temporary Identifier (TP-RNTI). The first DCI format scrambled by the newly defined TP-RNTI can effectively ensure that a standard 5G terminal accessed based on a 5G trunking communication system is not influenced, and simultaneously ensure that the trunking terminal quickly acquires paging information updated by trunking system information.
TABLE 4 short message indication
Bit field Short message indication
00 Reservation
01 Presence of scheduling information for trunking paging only in DCI
10 Presence of short message only in DCI
11 Coexistence of scheduling information for trunking paging and presence of short messages in DCI
TABLE 5 short message
Figure BDA0003112838470000101
The first DCI format includes the following fields:
the Short message indicates Short Messages Indicator,2bits, see table 4;
short Messages,8bits, see table 5, if only carrying the scheduling information of trunking paging, this bit field is reserved field;
frequency domain resource allocation Frequency domain resource assignment，
Figure BDA0003112838470000111
Wherein
Figure BDA0003112838470000112
Is the size of CORESET0, if only carrying short message, this bit field is reserved field;
time domain resource allocation, 4bits, is allocated to Time domain resources, and if only short messages are carried, the bit field is a reserved field;
VRB-to-PRB mapping,1bit, from VRB to PRB, if only carrying short message, this bit field is reserved field;
modulation and Coding Scheme (MCS), 5bits, if only carrying short message, this bit field is reserved field;
a transport block scaling factor TB scaling,2bits, if only carrying short messages, this bit field is a reserved field;
reserved bits,8bits or 6bits.
In one embodiment, a first DCI format is obtained by expanding DCI format 1_0 scrambled based on P-RNTI, and cluster system message update is indicated to a cluster terminal by using reserved bits of the first DCI format scrambled by TP-RNTI. Namely, the reserved bits of the Short Messages (Short Messages) field in the first DCI format scrambled by the TP-RNTI in the 5G-based trunked communication system by the network device indicate the trunked system message update.
According to the indication method for cluster system message updating provided by the embodiment of the invention, the network equipment indicates the cluster system message updating to the cluster terminal through the first DCI format scrambled by the TP-RNTI, so that the standard 5G terminal accessed based on the 5G cluster communication system can be effectively ensured not to be influenced, meanwhile, the cluster terminal is ensured to quickly acquire the paging message of the cluster system message updating, the integral paging time of members in a cluster group is further effectively reduced, the air interface resource overhead is reduced, and a certain energy-saving effect is achieved.
Based on any of the above embodiments, the DCI format is a second DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the second DCI format;
wherein fields included in the second DCI format include:
the method comprises the steps of cluster system message updating indication, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRB to physical resource blocks PRB and modulation coding scheme MCS.
In one embodiment, the fields included in the second DCI format include:
a cluster system message updating indication, 1bit, if set to 1, indicates that cluster UE is informed that cluster-related system messages are to be updated;
the allocation of the frequency-domain resources is performed,
Figure BDA0003112838470000121
wherein
Figure BDA0003112838470000122
Is the size of CORESET0, if only carrying the cluster system message updating indication, this bit field is a reserved field;
time domain resource allocation, 4bits, if only carrying cluster system message updating indication, this bit field is reserved field;
mapping from VRB to PRB, 1bit, if only carrying cluster system message updating indication, this bit field is reserved field;
modulating a coding mode, 5bits, and if only carrying a cluster system message updating indication, using the bit field as a reserved field;
transport block scaling factor, 2bits, this bit field is the reserved field if it carries only the trunking system message update indication.
In one embodiment, the network device indicates the trunking system message update to the trunking terminal through a trunking system message update indication field in the second DCI format scrambled by the TP-RNTI.
The indication method for updating the cluster system message provided by the embodiment of the invention can effectively ensure that the standard 5G terminal accessed to the 5G-based cluster communication system is not influenced through the second DCI format scrambled by the TP-RNTI, and simultaneously ensure that the cluster terminal quickly acquires the paging message updated by the cluster system message, thereby further effectively reducing the overall paging time of members in a cluster group, reducing the overhead of air interface resources and achieving a certain energy-saving effect.
Based on any of the above embodiments, the DCI format is a third DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the third DCI format;
wherein fields included in the third DCI format include:
the method comprises the steps of a trunking system message updating indication, a trunking Value Tag, trunking paging frequency domain resource allocation, time domain resource allocation, mapping from Virtual Resource Blocks (VRBs) to Physical Resource Blocks (PRBs), and a Modulation and Coding Scheme (MCS).
In one embodiment, the fields included in the third DCI format include:
a cluster system message updating indication, 1bits, if set to 1, indicates that cluster UE is informed that cluster-related system messages are to be updated;
a cluster Value Tag Trunk Value Tag,5bits, wherein if the cluster system message update indication is set to 1, the cluster Value Tag Trunk Value Tag represents a corresponding Tag (5 bits) after the SIB is changed;
the cluster paging frequency domain resource allocation is performed,
Figure BDA0003112838470000131
wherein
Figure BDA0003112838470000132
Is the size of CORESET0, if only carrying the cluster system message update indication and the cluster value label, the bit field is a reserved field;
time domain resource allocation, 4bits, if only carrying cluster system message update indication and cluster value label, this bit field is reserved field;
mapping VRB to PRB, 1bit, if only carrying cluster system message updating indication and cluster value label, this bit field is reserved field;
modulation and coding mode, 5bits, if only carrying cluster system message updating indication and cluster value label, this bit field is reserved field;
transport block scaling factor, 2bits, this bit field is a reserved field if it carries only the trunking system message update indication and the trunking value tag.
In one embodiment, the network device indicates the trunking system message update to the trunking terminal through a trunking system message update indication field in a third DCI format scrambled by the TP-RNTI.
The indication method for updating the cluster system message provided by the embodiment of the invention can effectively ensure that the standard 5G terminal accessed to the 5G-based cluster communication system is not influenced through the third DCI format scrambled by TP-RNTI, and simultaneously ensure that the cluster terminal quickly acquires the paging message updated by the cluster system message, thereby further effectively reducing the overall paging time of members in a cluster group, reducing the overhead of air interface resources and achieving a certain energy-saving effect.
Based on any of the above embodiments, the DCI format is a fourth DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a reserved bit in a trunking short message field in the fourth DCI format;
wherein fields included in the fourth DCI format include:
the method comprises the steps of cluster short message indication, cluster short messages, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRB to physical resource blocks PRB and modulation coding scheme MCS.
TABLE 6 Cluster short message indication
Figure BDA0003112838470000141
Fields included in the fourth DCI format include:
cluster short message indication, 2bits, see table 6;
the system comprises a cluster short message, 8bits, a tag (5 bits) corresponding to the SIB after being changed, and a 2bits reservation, wherein the cluster system information to be changed SIBn (1 bit) is contained in the cluster short message.
The cluster paging frequency domain resource allocation is performed,
Figure BDA0003112838470000142
wherein
Figure BDA0003112838470000143
Is the size of CORESET0, if only carrying the cluster short message, this bit field is the reserved field;
time domain resource allocation, 4bits, if only carrying cluster short message, this bit field is reserved field;
mapping from virtual resource block VRB to physical resource block PRB, 1bit, if only carrying cluster short message, this bit field is reserved field;
modulation coding mode, 5bits, if only carrying cluster short message, this bit field is reserved field;
transport block scaling factor, 2bits, this bit field is a reserved field if only a cluster short message is carried.
In one embodiment, the network device indicates the trunking system message update to the trunking terminal through a reserved bit in a trunking short message field in a fourth DCI format scrambled by a TP-RNTI.
The indication method for updating the cluster system message provided by the embodiment of the invention can effectively ensure that the standard 5G terminal accessed to the 5G-based cluster communication system is not influenced through the TP-RNTI scrambled fourth DCI format, and simultaneously ensure that the cluster terminal quickly acquires the paging message updated by the cluster system message, thereby further effectively reducing the overall paging time of members in the cluster group, reducing the air interface resource overhead and achieving a certain energy-saving effect.
Fig. 2 is a second flowchart illustrating a method for indicating a cluster system message update according to an embodiment of the present invention. As shown in fig. 2, in the indication method for updating a cluster system message provided by the present invention, an execution subject may be a cluster terminal, and the method includes:
step 200, monitoring paging information updated by cluster system information at cluster paging time;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
The paging message of the cluster system message update is used for indicating the update message of the cluster system to the cluster terminal.
It should be noted that the trunking paging time is any time in the trunking system message modification period. The trunking system message modification period includes a plurality of trunking paging occasions, and the trunking terminals in different RRC states monitor paging messages updated by the trunking system messages sent by the network device at the trunking paging occasions corresponding to the trunking terminals.
Further, the trunking system message modification period is an integer multiple of the trunking paging period, and a specific integer multiple value is configured to the trunking terminal by the network through a modificationperiodcofeftrunk parameter carried by the trunking system message, so that the difference between the trunking system message modification period and the non-trunking system message update period is realized, the trunking terminal is further ensured to quickly acquire the paging message updated by the trunking system message, and meanwhile, the paging message updated by the non-trunking system message sent to the standard 5G terminal is not influenced.
In one embodiment, the network device indicates the configuration information of the TPCCH and the configuration information of the cluster paging search space to the cluster terminal through system information or RRC signaling.
Further, the Trunking terminal calculates a Paging frame PF of a Paging message for receiving Trunking system message update according to configuration information of a Trunking Paging Control Channel (TPCCH) by using formula (1):
SFN·mod·T trunk ＝PF_offset (1)
the SFN represents the frame number of a wireless frame corresponding to the PF; t is trunk Denotes a cluster paging cycle, and PF _ offset denotes a radio frame offset.
Note that T is trunk Configured by a trunking paging cycle (trunk paging cycle) parameter in the configuration information of the TPCCH, and PF _ offset is configured by a PF _ offset parameter in the configuration information of the TPCCHAnd (4) placing.
Further, the trunking terminal calculates a paging frame PF of the paging message updated by the trunking system message according to formula (1), and configures an initial timeslot of the paging message in the PF for monitoring the trunking system message update through a PO _ Start parameter in the configuration information of the TPCCH, thereby determining that the trunking terminal starts monitoring the paging message updated by the trunking system message at the PO _ Start timeslot in the PF.
Further, the trunking terminal determines the specific time slot, the corresponding OFDM symbol and the corresponding frequency domain resource position of the paging message for monitoring the trunking system message update according to the configuration information of the trunking paging search space.
In the method for indicating cluster system message update provided in the embodiment of the present invention, the cluster terminals in different RRC states monitor the paging message updated by the cluster system message sent by the network device at the cluster paging time corresponding to the cluster terminal, wherein the cluster system message update is indicated by the DCI scrambled by the TP-RNTI, so that the cluster terminal can receive the paging message updated by the cluster system message at the specified time, thereby effectively reducing the overall paging time of members in the cluster group, reducing the overhead of air interface resources, having no influence on the update of the system message accessing the standard 5G terminal based on the 5G cluster communication system, and achieving a certain energy saving effect.
Based on any of the embodiments, the DCI format is a first DCI format scrambled by TP-RNTI, the first DCI format is obtained by expanding DCI format 1_0 scrambled by paging radio network temporary identifier P-RNTI, and the trunking system message update is indicated by a reserved bit in a short message field in the first DCI format.
It should be noted that, a trunking system message update is indicated to the trunking terminal through a first DCI format scrambled by a trunking paging radio Network Temporary Identifier (TP-RNTI). The first DCI format scrambled by the newly defined TP-RNTI can effectively ensure that a standard 5G terminal accessed to a 5G-based trunking communication system is not influenced, and meanwhile, the trunking terminal can quickly acquire paging information updated by trunking system information.
It should be noted that the content of the first DCI format is consistent with that of the first DCI format in the foregoing embodiment, and details are not repeated herein.
In one embodiment, a first DCI format is obtained by expanding DCI format 1_0 scrambled based on P-RNTI, and cluster system message update is indicated to a cluster terminal by using reserved bits of the first DCI format scrambled by TP-RNTI. Namely, the reserved bits of the Short Messages (Short Messages) field of the network device in the first DCI format scrambled by the TP-RNTI in the 5G-based trunking communication system indicate trunking system message update.
According to the indication method for cluster system message updating provided by the embodiment of the invention, the network equipment indicates the cluster system message updating to the cluster terminal through the first DCI scrambled by the TP-RNTI, so that the standard 5G terminal accessed based on the 5G cluster communication system can be effectively ensured not to be influenced, meanwhile, the cluster terminal is ensured to quickly acquire the paging message of the cluster system message updating, the integral paging time of members in a cluster group is further effectively reduced, the air interface resource overhead is reduced, and a certain energy-saving effect is achieved.
Based on any of the above embodiments, the DCI format is a second DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the second DCI format;
wherein fields included in the second DCI format include:
the method comprises the steps of cluster system message updating indication, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRB to physical resource blocks PRB, and modulation and coding scheme MCS.
It should be noted that the second DCI format is consistent with the content of the second DCI format in the foregoing embodiment, and details are not repeated herein.
In one embodiment, the network device indicates the trunking system message update to the trunking terminal through a trunking system message update indication field in the second DCI format scrambled by the TP-RNTI.
The indication method for updating the cluster system message provided by the embodiment of the invention can effectively ensure that the standard 5G terminal accessed to the 5G-based cluster communication system is not influenced through the second DCI format scrambled by the TP-RNTI, and simultaneously ensure that the cluster terminal quickly acquires the paging message updated by the cluster system message, thereby further effectively reducing the overall paging time of members in a cluster group, reducing the overhead of air interface resources and achieving a certain energy-saving effect.
Based on any of the above embodiments, the DCI format is a third DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the third DCI format;
wherein fields included in the third DCI format include:
the method comprises the steps of cluster system message updating indication, a cluster Value Tag Trunk Value Tag, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRBs to physical resource blocks PRBs, and modulation and coding scheme MCS.
It should be noted that the third DCI format is consistent with the third DCI format in the foregoing embodiment, and details are not repeated herein.
In one embodiment, the network device indicates the trunking system message update to the trunking terminal through a trunking system message update indication field in a third DCI format scrambled by the TP-RNTI.
The indication method for updating the cluster system message provided by the embodiment of the invention can effectively ensure that the standard 5G terminal accessed to the 5G-based cluster communication system is not influenced through the third DCI format scrambled by the TP-RNTI, and simultaneously ensure that the cluster terminal quickly acquires the paging message updated by the cluster system message, thereby further effectively reducing the overall paging time of members in a cluster group, reducing the overhead of air interface resources and achieving a certain energy-saving effect.
Based on any of the above embodiments, the DCI format is a fourth DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a reserved bit in a trunking short message field in the fourth DCI format;
wherein fields included in the fourth DCI format include:
the method comprises the steps of cluster short message indication, cluster short messages, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRB to physical resource blocks PRB, and modulation and coding modes MCS.
It should be noted that the content of the fourth DCI format is consistent with that of the fourth DCI format in the foregoing embodiment, and details are not repeated herein.
In one embodiment, the network device indicates the trunking system message update to the trunking terminal through a reserved bit in a trunking short message field in a fourth DCI format scrambled by the TP-RNTI.
The indication method for updating the cluster system message provided by the embodiment of the invention can effectively ensure that the standard 5G terminal accessed to the 5G-based cluster communication system is not influenced through the TP-RNTI scrambled fourth DCI format, and simultaneously ensure that the cluster terminal quickly acquires the paging message updated by the cluster system message, thereby further effectively reducing the overall paging time of members in the cluster group, reducing the air interface resource overhead and achieving a certain energy-saving effect.
A process of sending a trunking system update message to a trunking terminal by a network device in a paging message manner is specifically described with reference to fig. 3. Fig. 3 is a schematic view of a scene of an indication method for cluster system message update provided in an embodiment of the present invention, and as shown in fig. 3, a specific process of the indication method for cluster system message update includes:
s1, under the condition of cluster system message sending change, a base station sends a paging message for updating cluster system messages to a cluster terminal at all cluster paging moments in a cluster system message modification period; wherein the trunking system message updates the DCI indication scrambled by the TP-RNTI.
S2, the trunking terminal monitors paging information updated by trunking system information at trunking paging time, descrambles the received DCI by utilizing TP-RNTI, and if descrambling is successful, whether the trunking system information is updated is determined based on descrambling results.
The following describes the indication device for updating the cluster system message provided by the present invention, and the indication device for updating the cluster system message described below and the indication method for updating the cluster system message described above may be referred to correspondingly.
Fig. 4 is a schematic structural diagram of an indication apparatus for cluster system message update provided in an embodiment of the present invention, and as shown in fig. 4, the indication apparatus for cluster system message update includes: a sending unit 400, wherein,
a sending unit 400, configured to send a paging message for updating a trunking system message to a trunking terminal at all trunking paging times in a trunking system message modification period when the trunking system message is changed;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
The indicating device for updating the trunking system message provided in the embodiment of the present invention sends the paging message for updating the trunking system message to the trunking terminal by the network device at all trunking paging times in the trunking system message modification period when the trunking system message is changed, so that the trunking terminal can receive the paging message for updating the trunking system message at a specified time, thereby effectively reducing the overall paging time of members in a trunking group, reducing the overhead of air interface resources, having no influence on updating the system message accessed to a standard 5G terminal based on a 5G trunking communication system, and achieving a certain energy saving effect.
Optionally, the trunking system message modification period is an integer multiple of a trunking paging period.
Optionally, the DCI format is a first DCI format scrambled by TP-RNTI, the first DCI format is obtained by expanding DCI format 1_0 scrambled by paging radio network temporary identifier P-RNTI, and the trunking system message update is indicated by a reserved bit in a short message field in the first DCI format. Optionally, the DCI format is a second DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the second DCI format;
wherein fields included in the second DCI format include:
the method comprises the steps of cluster system message updating indication, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRB to physical resource blocks PRB, and modulation and coding scheme MCS.
Optionally, the DCI format is a third DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the third DCI format;
wherein fields included in the third DCI format include:
the method comprises the steps of a trunking system message updating indication, a trunking Value Tag, trunking paging frequency domain resource allocation, time domain resource allocation, mapping from Virtual Resource Blocks (VRBs) to Physical Resource Blocks (PRBs), and a Modulation and Coding Scheme (MCS).
Optionally, the DCI format is a fourth DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a reserved bit in a trunking short message field in the fourth DCI format;
wherein fields included in the fourth DCI format include:
the method comprises the steps of cluster short message indication, cluster short messages, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRB to physical resource blocks PRB, and modulation and coding modes MCS.
The indication device for updating the cluster system message provided by the present invention can implement each process implemented by the method embodiment of fig. 1 or fig. 3, and achieve the same technical effect, and is not described herein again to avoid repetition.
Fig. 5 is a second schematic structural diagram of an indication apparatus for cluster system message update according to an embodiment of the present invention, and as shown in fig. 5, the indication apparatus for cluster system message update includes: the listening unit 500 is configured to, among other things,
a monitoring unit 500, configured to monitor a paging message updated by a trunking system message at a trunking paging time;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
In the indicating device for cluster system message update provided in the embodiment of the present invention, the cluster terminals in different RRC states monitor the paging message updated by the cluster system message sent by the network device at the cluster paging time corresponding to the cluster terminal, wherein the cluster system message update is indicated by the DCI scrambled by the TP-RNTI, so that the cluster terminal can receive the paging message updated by the cluster system message at the specified time, thereby effectively reducing the overall paging time of members in the cluster group, reducing the overhead of air interface resources, having no influence on the update of the system message accessing the standard 5G terminal based on the 5G cluster communication system, and achieving a certain energy saving effect.
Optionally, the DCI format is a first DCI format scrambled by a TP-RNTI, the first DCI format is obtained by extending DCI format 1_0 scrambled by a paging radio network temporary identifier P-RNTI, and the trunking system message update is indicated by a reserved bit in a short message field in the first DCI format.
Optionally, the DCI format is a second DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the second DCI format;
wherein fields included in the second DCI format include:
the method comprises the steps of cluster system message updating indication, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from Virtual Resource Blocks (VRBs) to Physical Resource Blocks (PRBs) and Modulation and Coding Schemes (MCS). Optionally, the DCI format is a third DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the third DCI format;
wherein fields included in the third DCI format include:
the method comprises the steps of cluster system message updating indication, a cluster Value Tag Trunk Value Tag, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRBs to physical resource blocks PRBs, and modulation and coding scheme MCS.
Optionally, the DCI format is a fourth DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a reserved bit in a trunking short message field in the fourth DCI format;
wherein fields included in the fourth DCI format include:
the method comprises the steps of cluster short message indication, cluster short messages, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRB to physical resource blocks PRB, and modulation and coding modes MCS.
The indication device for updating the cluster system message provided by the invention can realize each process realized by the method embodiment of fig. 2 or fig. 3, and achieve the same technical effect, and is not repeated here to avoid repetition.
The terminal device referred to in the embodiments of the present application may be a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE).
The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services to a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application.
Fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present application, and referring to fig. 6, an embodiment of the present application further provides a network device, which may include: memory 610, transceiver 620, and processor 630;
the memory 610 is used to store computer programs; a transceiver 620 for transceiving data under the control of the processor 630; the processor 630 is configured to execute the method executed by each module shown in fig. 4, and achieve the same technical effect, and is not described herein for avoiding repetition.
Where in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 630, and various circuits, represented by memory 610, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 620 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 630 is responsible for managing the bus architecture and general processing, and the memory 610 may store data used by the processor 630 in performing operations.
Fig. 7 is a schematic structural diagram of a trunking terminal according to an embodiment of the present application, and referring to fig. 7, an embodiment of the present application further provides a trunking terminal, which may include: memory 710, transceiver 720, and processor 730;
the memory 710 is used for storing computer programs; a transceiver 720 for transceiving data under the control of the processor 730; a processor 730 for reading the computer program in the memory 710 and performing the following operations:
monitoring a paging message updated by a cluster system message at a cluster paging moment;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
Wherein in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 730, and various circuits of memory, represented by memory 710, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 720 may be a number of elements including a transmitter and receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 740 may also be an interface capable of externally interfacing with a desired device for different user devices.
The processor 730 is responsible for managing the bus architecture and general processing, and the memory 710 may store data used by the processor 730 in performing operations.
The processor 730 is configured to invoke the computer program stored in the memory 710 to execute any of the methods provided by the embodiments of the present application according to the obtained executable instructions. The processor and memory may also be physically separated.
Optionally, the DCI format is a first DCI format scrambled by TP-RNTI, the first DCI format is obtained by expanding DCI format 1_0 scrambled by paging radio network temporary identifier P-RNTI, and the trunking system message update is indicated by a reserved bit in a short message field in the first DCI format.
Optionally, the DCI format is a second DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the second DCI format;
wherein fields included in the second DCI format include:
the method comprises the steps of cluster system message updating indication, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from Virtual Resource Blocks (VRBs) to Physical Resource Blocks (PRBs) and Modulation and Coding Schemes (MCS). Optionally, the DCI format is a third DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the third DCI format;
wherein fields included in the third DCI format include:
the method comprises the steps of cluster system message updating indication, a cluster Value Tag Trunk Value Tag, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRBs to physical resource blocks PRBs, and modulation and coding scheme MCS.
Optionally, the DCI format is a fourth DCI format scrambled by a TP-RNTI, and the trunking system message update is indicated by a reserved bit in a trunking short message field in the fourth DCI format;
wherein fields included in the fourth DCI format include:
the method comprises the steps of cluster short message indication, cluster short messages, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from Virtual Resource Blocks (VRBs) to Physical Resource Blocks (PRBs) and Modulation and Coding Schemes (MCS).
It should be noted that, the terminal and the network device provided in the embodiments of the present invention can implement all the method steps implemented in the foregoing method embodiments, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiments in this embodiment are omitted here.
Fig. 8 illustrates a physical structure diagram of an electronic device, and as shown in fig. 8, the electronic device may include: a processor (processor) 810, a Communication Interface 820, a memory 830 and a Communication bus 840, wherein the processor 810, the Communication Interface 820 and the memory 830 communicate with each other via the Communication bus 840. Processor 810 may invoke computer programs in memory 830 to perform the steps of the indication method of cluster system message updates, including, for example:
under the condition that the cluster system message is changed, sending a paging message for updating the cluster system message to the cluster terminal at all cluster paging moments in a cluster system message modification period;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
Alternatively, the processor 810 may invoke a computer program in the memory 830 to perform the steps of the indication method of cluster system message update, including, for example:
monitoring a paging message updated by a cluster system message at a cluster paging moment;
and the trunking system message updates DCI (downlink control information) indication scrambled by a trunking paging radio network temporary identifier (TP-RNTI).
In addition, the logic instructions in the memory 830 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, enable the computer to perform the method for indicating a cluster system message update provided by the above methods, the method comprising:
under the condition that the cluster system message is changed, sending a paging message for updating the cluster system message to the cluster terminal at all cluster paging moments in a cluster system message modification period;
and the trunking system message updates DCI (downlink control information) indication scrambled by a trunking paging radio network temporary identifier (TP-RNTI).
Alternatively, the computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the method for indicating the cluster system message update provided by the above methods, and the method includes:
monitoring a paging message updated by a cluster system message at a cluster paging moment;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
On the other hand, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the method for indicating a cluster system message update provided in the foregoing embodiments, and for example, the method includes:
under the condition that the cluster system message is changed, sending a paging message for updating the cluster system message to the cluster terminal at all cluster paging moments in a cluster system message modification period;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
Alternatively, the computer program is configured to enable the processor to execute the method for indicating a cluster system message update provided in the foregoing embodiments, and for example, the method includes:
monitoring a paging message updated by a cluster system message at a cluster paging moment;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memories (NANDFLASHs), solid State Disks (SSDs)), etc.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (11)

1. A method for indicating a cluster system message update is characterized by comprising the following steps:
under the condition that the cluster system message is changed, sending a paging message for updating the cluster system message to the cluster terminal at all cluster paging moments in a cluster system message modification period;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
2. The indication method of trunking system message update according to claim 1, wherein the trunking system message modification period is an integer multiple of the trunking paging period.
3. The method according to claim 1, wherein the DCI format is a first DCI format scrambled by TP-RNTI, and the first DCI format is obtained by extending DCI format 1_0 scrambled by paging radio network temporary identifier P-RNTI, and the trunking system message update is indicated by a reserved bit in a short message field in the first DCI format.
4. The indication method of trunking system message update according to claim 1, wherein the DCI format is a second DCI format scrambled by TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the second DCI format;
wherein fields included in the second DCI format include:
the method comprises the steps of cluster system message updating indication, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from Virtual Resource Blocks (VRBs) to Physical Resource Blocks (PRBs) and Modulation and Coding Schemes (MCS).
5. The indication method of trunking system message update according to claim 1, wherein the DCI format is a third DCI format scrambled by TP-RNTI, and the trunking system message update is indicated by a trunking system message update indication field in the third DCI format;
wherein fields included in the third DCI format include:
the method comprises the steps of cluster system message updating indication, a cluster Value Tag Trunk Value Tag, cluster paging frequency domain resource allocation, time domain resource allocation, mapping from virtual resource blocks VRBs to physical resource blocks PRBs, and modulation and coding scheme MCS.
6. The indication method of trunking system message update of claim 1 wherein the DCI format is a fourth DCI format scrambled by TP-RNTI, and the trunking system message update is indicated by a reserved bit in a trunking short message field in the fourth DCI format;
wherein fields included in the fourth DCI format include:
cluster short message indication, cluster short message, cluster paging frequency domain resource allocation, time domain resource allocation, mapping of virtual resource block VRB to physical resource block PRB and method thereofAndmodulation and coding scheme MCS.
7. An indication method for updating a cluster system message is applied to a cluster terminal, and comprises the following steps:
monitoring a paging message updated by a cluster system message at a cluster paging moment;
and the cluster system message updates DCI (downlink control information) indication scrambled by a cluster paging radio network temporary identifier (TP-RNTI).
8. An apparatus for indicating a cluster system message update, comprising:
a sending unit, configured to send a paging message for updating a trunking system message to a trunking terminal at all trunking paging times in a trunking system message modification period when the trunking system message is changed;
and the trunking system message updates DCI (downlink control information) indication scrambled by a trunking paging radio network temporary identifier (TP-RNTI).
9. An apparatus for indicating a cluster system message update, comprising:
the monitoring unit is used for monitoring the paging message updated by the cluster system message at the cluster paging moment;
and the trunking system message updates DCI (downlink control information) indication scrambled by a trunking paging radio network temporary identifier (TP-RNTI).
10. A network device comprising a processor and a memory storing a computer program, wherein the processor when executing the computer program performs the steps of the method for indicating a clustered system message update as claimed in any of claims 1 to 6.
11. A trunking terminal comprising a processor and a memory storing a computer program, wherein the processor when executing the computer program performs the steps of the method for indicating a message update of a trunking system according to claim 7.
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