Method and device for sending cluster paging in B-TRUNC 5G system

Abstract

The invention provides a cluster paging sending method and device in a B-TRUNC 5G system, and the method comprises the steps: in each cluster paging period, a gNB sends dynamic scheduling information of cluster paging and a cluster paging change notification through a DCI format on a PDCCH scrambled by a P-RNTI via CRC in a cluster paging occasion, and sends a PDSCH special for a PCCH according to the dynamic scheduling information of the cluster paging, the PCCH bears a cluster paging message; according to the method, the UE monitors the PDCCH scrambled by the CRC through the P-RNTI in the trunking paging time in each trunking paging period, when the PDCCH is monitored, the UE selectively receives the PDSCH special for the PCCH according to the trunking paging change notice in the DCI format on the PDCCH, the PDSCH special for the PCCH does not need to be received every time, and the power consumption of the UE is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a method and device for sending group paging in a B-TRUNC 5G system. This application uses the B-TRUNC (Broadband TRUNking Communication) 5G (The fifth generation) system to refer to a broadband trunking communication system based on the NR (New Radio) technology, and the NR technology is the fifth-generation mobile communication technology. Background Art

[0002] In the B-TRUNC 5G system, the gNB (the next Generation Node B, 5G base station) sends group paging through the PCCH (Paging Control Channel). Specifically, the gNB sends a PDCCH (Physical Downlink Control Channel) scrambled by the P-RNTI (Paging Radio Network Temporary Identifier) for CRC (Cyclic Redundency Check) within the group paging opportunity. The DCI (Downlink Control Information) format on the PDCCH is the dynamic scheduling information of the PCCH. The gNB sends the PDSCH (Physical Downlink Shared Channel) dedicated to the PCCH according to the dynamic scheduling information of the PCCH. The PDSCH uses the P-RNTI to generate a bit scrambling sequence during bit scrambling. The PCCH carries the group paging message, and the group paging message consists of 1 group call list and 1 single call list. The group call list provides the TSRB / TCCH (TSRB, Trunking Signalling Radio Bearer; TCCH, Trunking Control Channel) configuration information of each group in the cell, and the single call list provides information such as the ID (Identifier) of each paged UE (User Equipment).

[0003] To ensure that the setup latency of group calls and single calls is as small as possible, the period of cluster paging transmission is relatively small. For example, the cluster paging period is 20 ms. The UE with cluster function needs to listen for cluster paging in order to receive the corresponding group call or respond to the corresponding single call according to the cluster paging message provided by the cluster paging. Since the cluster paging period is small, the process of the UE listening for cluster paging consumes a lot of power.

[0004] To reduce the power consumption of the UE during the process of listening for cluster paging, the present invention proposes a method and device for transmitting cluster paging in a B-TRUNC 5G system. Summary of the Invention

[0005] This application provides a method and device for transmitting cluster paging in a B-TRUNC 5G system to reduce the power consumption of the UE during the process of listening for cluster paging.

[0006] In a first aspect, an embodiment of this application provides a method for transmitting cluster paging in a B-TRUNC 5G system, including:

[0007] Within each cluster paging period, the gNB transmits the dynamic scheduling information of cluster paging and the cluster paging change notification on the DCI format of the PDCCH scrambled by P-RNTI through CRC within the cluster paging occasion, and transmits the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the cluster paging. The cluster paging message is carried on the PCCH, and the cluster paging change notification is used to indicate whether there are new group calls and / or new single calls in the cluster paging message in the current cluster paging period compared with the cluster paging message in the previous cluster paging period;

[0008] The UE listens for the PDCCH scrambled by P-RNTI through CRC within the cluster paging occasion in each cluster paging period. When the PDCCH is detected, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH.

[0009] Optionally, when the cluster paging occasion is separated from the UE paging occasion in time, the method further includes:

[0010] The gNB sets the following respective fields in the DCI format of the PDCCH:

[0011] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding mode field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field;

[0012] Among them, the short message indication field is reserved, or the short message indication field is set according to the TS38.212 protocol;

[0013] When the short message indication field is reserved, the short message field is reserved; otherwise, when the DCI format carries a short message, the short message field is set according to the TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved;

[0014] The tracking reference signal availability indication field is reserved, or this field is set according to preset parameters: If the preset parameters are configured, the number of bits M of the reference signal availability indication field is determined according to the preset parameters; otherwise, M = 0.

[0015] Optionally, when it is allowed that the cluster paging occasion overlaps with the UE paging occasion in time, the method further includes:

[0016] The gNB sets the following respective fields in the DCI format on the PDCCH:

[0017] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding mode field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field;

[0018] Among them, the value of the short message indication field is 00;

[0019] The short message field is reserved; or, when the DCI format carries a short message, the short message field is set according to the TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved;

[0020] The tracking reference signal availability indication field is reserved, or this field is set according to preset parameters: If the preset parameters are configured, the number of bits M of the reference signal availability indication field is determined according to the preset parameters; otherwise, M = 0.

[0021] Optionally, when it is allowed that the cluster paging occasion overlaps with the UE paging occasion in time, the method further includes:

[0022] In the non-overlapping PDCCH occasions within the cluster paging occasion, the gNB sets the following respective fields in the DCI format on the PDCCH:

[0023] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding mode field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field;

[0024] Among them, the short message indication field is reserved, or the short message indication field is set according to the TS38.212 protocol;

[0025] When the short message indication field is reserved, the short message field is reserved; otherwise, when the DCI format carries a short message, the short message field is set according to TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved;

[0026] The tracking reference signal availability indication field is reserved, or this field is set according to preset parameters: if the preset parameters are configured, the number of bits M of the reference signal availability indication field is determined according to the preset parameters; otherwise, M = 0;

[0027] In the PDCCH occasions overlapping in the cluster paging occasion, the gNB sets the following respective fields in the DCI format on the PDCCH:

[0028] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding scheme field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field;

[0029] Wherein, the value of the short message indication field is 00;

[0030] The short message field is reserved; or, when the DCI format carries a short message, the short message field is set according to TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved;

[0031] The tracking reference signal availability indication field is reserved, or this field is set according to preset parameters: if the preset parameters are configured, the number of bits M of the reference signal availability indication field is determined according to the preset parameters; otherwise, M = 0.

[0032] Optionally, when allowing the cluster paging occasion to overlap with the UE paging occasion in time, the method further includes:

[0033] The gNB sets the following respective fields in the DCI format on the PDCCH:

[0034] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding scheme field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field;

[0035] Wherein, a 1-bit paging type indication field is introduced in the preset sequence: when the DCI format carries the dynamic scheduling information of the cluster paging, this field is set to 1; otherwise, this field is set to 0;

[0036] The preset sequence is a sequence composed of all the bits corresponding to the respective fields reserved in the DCI format and the reserved bits in the order in which they appear in the DCI format.

[0037] Optionally, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the PDCCH with DCI format scrambled by P-RNTI through CRC within the cluster paging occasion, including:

[0038] The gNB introduces a 2-bit cluster paging change notification field in the DCI format on the PDCCH;

[0039] If there is a new group call on the PCCH within the current cluster paging cycle, the gNB sets the most significant bit in the cluster paging change notification field to 1;

[0040] If there is a new single call on the PCCH within the current cluster paging cycle, the gNB sets the least significant bit in the cluster paging change notification field to 1.

[0041] Optionally, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the PDCCH with DCI format scrambled by P-RNTI through CRC within the cluster paging occasion, including:

[0042] The gNB introduces a 1-bit cluster paging change notification field in the DCI format on the PDCCH;

[0043] If there is a new group call or a new single call on the PCCH within the current cluster paging cycle, the gNB sets the 1 bit in the cluster paging change notification field to 1.

[0044] Optionally, the gNB introduces a 2-bit cluster paging change notification field in the DCI format on the PDCCH, including:

[0045] Taking the last 2 bits of the short message field in the DCI format as the cluster paging change notification field;

[0046] Or, taking the last 2 bits of a preset sequence in the DCI format as the cluster paging change notification field;

[0047] Or, taking the first 2 bits of a preset sequence in the DCI format as the cluster paging change notification field;

[0048] The preset sequence is a sequence composed of all the bits corresponding to the reserved fields in the DCI format and the reserved bits in the order in which they appear in the DCI format.

[0049] Optionally, the gNB introduces a 1-bit cluster paging change notification field in the DCI format on the PDCCH, including:

[0050] Use the last bit of the short message field in the DCI format as the cluster paging change notification field;

[0051] Alternatively, use the last bit in a preset sequence in the DCI format as the cluster paging change notification field;

[0052] Alternatively, use the first bit in a preset sequence in the DCI format as the cluster paging change notification field;

[0053] The preset sequence is a sequence formed by all the bits corresponding to the reserved fields in the DCI format and the reserved bits in the order in which they appear in the DCI format.

[0054] Optionally, when the PDCCH is detected, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH, including:

[0055] When the cluster paging occasion is separated from the UE paging occasion in time, when the PDCCH is detected, the UE determines that the DCI format on the detected PDCCH carries the dynamic scheduling information of the cluster paging and the cluster paging change notification;

[0056] If the UE has not obtained the cluster paging in the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the cluster paging obtained by parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the cluster paging change notification field obtained by parsing.

[0057] Optionally, when the PDCCH is detected, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH, including:

[0058] When the cluster paging occasion is allowed to overlap with the UE paging occasion in time, when the PDCCH is detected, if the value of the short message indication field in the DCI format on the PDCCH is 00, the UE determines that the DCI format on the detected PDCCH carries the dynamic scheduling information of the cluster paging and the cluster paging change notification;

[0059] If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by the parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the obtained group paging change notification field;

[0060] If the value of the short message indication field in the DCI format on the PDCCH is not 00, and the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the UE paging and the short message, the UE executes the processing procedure corresponding to the UE paging.

[0061] Optionally, when the PDCCH is monitored, the UE receives the PDSCH dedicated to the PCCH according to the group paging change notification in the DCI format on the PDCCH, including:

[0062] When the group paging opportunity is allowed to overlap with the UE paging opportunity in time, and the UE monitors the PDCCH in the non-overlapping PDCCH opportunity within the group paging opportunity, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the group paging and the group paging change notification;

[0063] If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by the parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the obtained group paging change notification field;

[0064] When the UE monitors the PDCCH in the overlapping PDCCH opportunity within the group paging opportunity, if the value of the short message indication field in the DCI format on the PDCCH is 00, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the group paging and the group paging change notification;

[0065] If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by the parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the obtained group paging change notification field;

[0066] If the value of the short message indication field in the DCI format on the PDCCH is not 00, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information and short message of UE paging, and then the UE executes the processing procedure corresponding to UE paging.

[0067] Optionally, when the PDCCH is monitored, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH, including:

[0068] When the allowed cluster paging occasion overlaps with the UE paging occasion in time, when the PDCCH is monitored, if the value of the paging type indication field in the DCI format on the PDCCH is 1, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information and cluster paging change notification of cluster paging;

[0069] If the UE has not obtained the cluster paging in the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the obtained dynamic scheduling information of the cluster paging; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the obtained cluster paging change notification field;

[0070] If the value of the paging type indication field in the DCI format on the PDCCH is not 1, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information and short message of UE paging, and then the UE executes the processing procedure corresponding to UE paging.

[0071] Optionally, the UE determines whether to continue to receive the PDSCH dedicated to the PCCH according to the obtained cluster paging change notification field, including:

[0072] When the cluster paging change notification field consists of 2 bits, if the most significant bit is 1, the UE determines that there is a new group call on the PCCH; if the least significant bit is 1, the UE determines that there is a new single call on the PCCH;

[0073] When there is a new single call on the PCCH, the UE continues to receive the PDSCH dedicated to the PCCH to determine whether it is paged;

[0074] When there is a new group call on the PCCH, if the UE is receiving information of a group and the priority of the group is the highest priority, the UE continues to receive the PDSCH dedicated to the PCCH, or does not receive the PDSCH dedicated to the PCCH; if the UE is receiving information of a group and the priority of the group is not the highest priority, the UE continues to receive the PDSCH dedicated to the PCCH.

[0075] Optionally, the UE determines whether to continue receiving the PDSCH dedicated to the PCCH according to the cluster paging change notification field obtained by parsing, including:

[0076] When the cluster paging change notification field consists of 1 bit, if the bit is 1, the UE determines that there is a new group call or a new single call on the PCCH and continues to receive the PDSCH dedicated to the PCCH.

[0077] In a second aspect, an embodiment of the present application provides a gNB device, including: at least one processor and a memory;

[0078] The memory stores computer-executable instructions;

[0079] The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the following method:

[0080] In each cluster paging cycle, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the PDCCH with DCI format scrambled by P-RNTI in the cluster paging opportunity through CRC, and sends the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the cluster paging. The cluster paging message is carried on the PCCH, and the cluster paging change notification is used to indicate whether there are new group calls and / or new single calls in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle.

[0081] In a third aspect, an embodiment of the present application provides a UE device, including: at least one processor and a memory;

[0082] The memory stores computer-executable instructions;

[0083] The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the following method:

[0084] The UE listens to the PDCCH scrambled by P-RNTI with CRC in the cluster paging opportunity in each cluster paging cycle. When the PDCCH is detected, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH.

[0085] In the method and device for sending cluster paging in the B-TRUNC 5G system provided by the embodiments of the present application, within each cluster paging cycle, the gNB sends dynamic scheduling information of cluster paging and a cluster paging change notification on a PDCCH scrambled with P-RNTI by CRC within the cluster paging opportunity; the cluster paging change notification is used to indicate whether there are new group calls and / or new single calls in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle; the UE listens to the PDCCH scrambled with P-RNTI by CRC within the cluster paging opportunity in each cluster paging cycle, and when the PDCCH is detected, the UE receives the PDSCH dedicated to PCCH according to the cluster paging change notification in the DCI format on the PDCCH. The power consumption is relatively large during the process of receiving the PDSCH dedicated to PCCH. The present application enables the UE to selectively receive the PDSCH dedicated to PCCH according to the cluster paging change notification, without receiving the PDSCH dedicated to PCCH every time, effectively reducing the power consumption of the UE. Description of the Drawings

[0086] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0087] Figure 1 It is a schematic flowchart of the method for sending cluster paging in the B-TRUNC 5G system provided by the embodiments of the present application;

[0088] Figure 2 It is a schematic structural diagram of the gNB device provided by the embodiments of the present application;

[0089] Figure 3 It is a schematic structural diagram of the UE device provided by the embodiments of the present application.

[0090] For the embodiments of the present application shown in the above-mentioned drawings, there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0091] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0092] Next, the technical solution of the present application will be described in detail through specific embodiments.

[0093] It should be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0094] Figure 1 It is a schematic flowchart of the method for sending cluster paging in the B-TRUNC 5G system provided by the embodiment of the present application. As Figure 1 shown, the method includes the following steps:

[0095] Step S101: In each cluster paging cycle, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the DCI format of the PDCCH scrambled by the P-RNTI through the CRC in the cluster paging opportunity, and sends the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the cluster paging. The cluster paging message is carried on the PCCH, and the cluster paging change notification is used to indicate whether there is a new group call and / or a new single call in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle.

[0096] Specifically, in each cluster paging cycle, the gNB sends the PDCCH scrambled by the P-RNTI through the CRC in the cluster paging opportunity, and the DCI format on the PDCCH provides the dynamic scheduling information of the cluster paging and the cluster paging change notification. The gNB also sends the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the cluster paging, and the cluster paging message is carried on the PCCH.

[0097] The cluster paging change notification indicates whether there is a new group call or a new single call in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle. Exemplarily, 1 bit in the DCI format is used to send the cluster paging change notification. If there is a new group call and / or a new single call in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle, this bit is set to 1; if there is no new group call and new single call in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle, this bit is set to 0.

[0098] A new group call / single call within the current cluster paging cycle means that there is at least one group call / single call in the group call / single call list on the PCCH within the current cluster paging cycle, and this group call / single call is not the group call / single call included in the group call / single call list on the PCCH in the previous cluster paging cycle. For example: The group call list on the PCCH in the previous cluster paging cycle includes group call 1 and group call 2. If the group call list on the PCCH in the current cluster paging cycle only includes group call 1, there is no new group call in the current cluster paging cycle; if the group call list on the PCCH in the current cluster paging cycle includes group call 1 and group call 3, the new group call in the current cluster paging cycle is: group call 3.

[0099] Step S102: The UE monitors the PDCCH scrambled with P-RNTI for CRC within the cluster paging opportunity in each cluster paging cycle. When the UE detects the PDCCH, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH.

[0100] Specifically, after the UE obtains the cluster paging change notification, it selectively receives the PDSCH dedicated to the PCCH according to the cluster paging change notification. Since the UE consumes a large amount of power during the process of receiving the PDSCH dedicated to the PCCH, selectively receiving the PDSCH dedicated to the PCCH can effectively reduce the power consumption of the UE.

[0101] In the method for sending cluster paging in the B-TRUNC 5G system provided in the embodiments of the present application, within each cluster paging cycle, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification in the DCI format on the PDCCH scrambled with P-RNTI for CRC within the cluster paging opportunity; the cluster paging change notification is used to indicate whether there are new group calls and / or new single calls in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle; the UE monitors the PDCCH scrambled with P-RNTI for CRC within the cluster paging opportunity in each cluster paging cycle. When the UE detects the PDCCH, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH. Since the UE consumes a large amount of power during the process of receiving the PDSCH dedicated to the PCCH, the present application enables the UE to selectively receive the PDSCH dedicated to the PCCH according to the cluster paging change notification, without receiving the PDSCH dedicated to the PCCH every time, effectively reducing the power consumption of the UE.

[0102] The DCI format on the PDCCH scrambled with P-RNTI for CRC can be DCI format 1_0. Currently, DCI format 1_0 carries the following respective fields for sending the dynamic scheduling information of UE paging and short messages:

[0103] Short Messages Indicator (Short Message Indicator Field): 2 bits. The values of this field are: 01, 10, or 11. The value "00" is reserved. Specifically, the meanings of the values of this field are shown in Table 7.3.1.2.1-1 of TS38.212 protocol.

[0104] Short Messages (Short Message Field): 8 bits. The functions of the first 4 bits are shown in Section 6.5 of TS38.331, and the last 4 bits are reserved. If the DCI format does not carry short messages, this field is reserved.

[0105] Frequency domain resource assignment (Frequency Domain Resource Allocation Field): bits, is the size of CORESET 0. If the DCI format does not carry scheduling information, this field is reserved.

[0106] Time domain resource assignment (Time Domain Resource Allocation Field): 4 bits. The definition of this field is shown in Section 5.1.2.1 of TS38.214. If the DCI format does not carry scheduling information, this field is reserved.

[0107] VRB-to-PRB mapping (VRB to PRB Mapping Field): 1 bit. This bit is set according to Table 7.3.1.2.2-5 in TS38.212 protocol. If the DCI format does not carry scheduling information, this field is reserved.

[0108] Modulation and coding scheme (Modulation and Coding Scheme Field): 5 bits. The definition of this field is shown in Section 5.1.3 of TS38.214 protocol. PCCH uses Table 5.1.3.1-1. If the DCI format does not carry scheduling information, this field is reserved.

[0109] TB scaling (Transport Block Scaling Field): 2 bits. The definition of this field is shown in Section 5.1.3.2 of TS38.214 protocol. If the DCI format does not carry scheduling information, this field is reserved.

[0110] TRS availability indication (Tracking Reference Signal Availability Indication Field): M bits. If trs-ResourceSetConfig is configured, M = 1, 2, 3, 4, 5, or 6. The specific value of M is equal to 1 plus the maximum value of all indBitID provided by trs-ResourceSetConfig; otherwise, M = 0.

[0111] Reserved bits: (8–M) bits or (6–M) bits. For a shared spectrum channel access cell in FR1 or a cell in FR2-2, this field is (8-M) bits. For a non-shared spectrum channel access cell, this field is (6-M) bits.

[0112] When sending the dynamic scheduling information of group paging through DCI format 1_0, if it is not necessary to send the group paging change notification through DCI format 1_0 at the same time, each field in DCI format 1_0 can be set in the above manner. When the UE receives DCI format 1_0, it receives the corresponding PCCH according to the PCCH scheduling information provided by DCI format 1_0, and then parses the paging message carried on the PCCH: For a general UE that does not support the group function, when the paging message is a UE paging message, the UE performs corresponding processing. When the paging message is a group paging message, the UE cannot recognize the message and discards it; For a UE that supports the group function, the UE can recognize both the UE paging message and the group paging message, and the UE's processing of these two messages is different.

[0113] When sending the dynamic scheduling information of group paging and the group paging change notification through DCI format 1_0, each field in DCI format 1_0 needs to be set according to the specific situation.

[0114] In the B-TRUNC 5G air interface protocol, there are the following two relationships between the group paging opportunity and the UE paging opportunity:

[0115] Relationship 1: The group paging opportunity is separated from the UE's paging opportunity in time.

[0116] Relationship 2: The group paging opportunity overlaps with the UE paging opportunity in time.

[0117] For the above two relationships, when sending the dynamic scheduling information of group paging and the group paging change notification through DCI format on the PDCCH scrambled with P-RNTI by CRC, there are the following three ways for the gNB to set each field in DCI format:

[0118] Method 1: When it is stipulated in the B-TRUNC 5G air interface protocol that the group paging opportunity is separated from the UE paging opportunity in time, the gNB sends the dynamic scheduling information of group paging and the group paging change notification through DCI format on the PDCCH scrambled with P-RNTI by CRC within the group paging opportunity, including:

[0119] The gNB sets the following fields in DCI format on the PDCCH:

[0120] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding scheme field, transport block size ratio field, tracking reference signal availability indication field, and reserved bit field;

[0121] Wherein, the short message indication field is reserved, or the short message indication field is set according to the TS38.212 protocol;

[0122] When the short message indication field is reserved, the short message field is reserved; otherwise, when the DCI format carries a short message, the short message field is set according to the TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved;

[0123] The tracking reference signal availability indication field is reserved, or this field is set according to the preset parameter trs-ResourceSetConfig: If the parameter is configured, the number of bits M of the reference signal availability indication field is determined according to the parameter; otherwise, M = 0.

[0124] Specifically, when it is stipulated in the B-TRUNC 5G air interface protocol that the cluster paging occasion is separated from the UE's paging occasion in time, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification through the DCI format on the PDCCH scrambled by the P-RNTI with the CRC within the cluster paging occasion. The gNB sets the following fields in the DCI format, and the corresponding PCCH bears the cluster paging message:

[0125] Short Messages Indicator: 2 bits, this field is reserved or set according to Table 7.3.1.2.1-1 in the TS38.212 protocol;

[0126] Short Messages: 8 bits, when the short message indication field is reserved, this field is reserved; otherwise, when the DCI format 1_0 carries a short message, this field is set according to Section 6.5 in the TS38.331, and when the DCI format 1_0 does not carry a short message, this field is reserved;

[0127] Frequency domain resource assignment: bits; wherein, is the size of CORESET 0;

[0128] Time domain resource assignment: 4 bits, the definition of this field is shown in Section 5.1.2.1 of the TS38.214;

[0129] VRB-to-PRB mapping: 1 bit, which is set according to Table 7.3.1.2.2-5 in TS38.212 protocol;

[0130] Modulation and coding scheme: 5 bits, the definition of this field is shown in Section 5.1.3 of TS38.214 protocol, and PCCH uses Table 5.1.3.1-1;

[0131] TB scaling: 2 bits, the definition of this field is shown in Section 5.1.3.2 of TS38.214 protocol;

[0132] TRS availability indication: M bits, this field is reserved, or this field is set according to the parameter trs-ResourceSetConfig: if trs-ResourceSetConfig is configured, M = 1, 2, 3, 4, 5 or 6, and the specific value of M is equal to 1 plus the maximum value in all indBitID provided by trs-ResourceSetConfig, otherwise, M = 0;

[0133] Reserved bits: (8–M) bits or (6–M) bits, this field is reserved. For a shared spectrum channel access cell in FR1 or a cell in FR2-2, this field is (8-M) bits, and for a non-shared spectrum channel access cell, this field is (6-M) bits.

[0134] Method 2: When it is stipulated in the B-TRUNC 5G air interface protocol that the cluster paging opportunity is allowed to overlap with the UE paging opportunity in time, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification through the PDCCH with DCI format scrambled by P-RNTI within the cluster paging opportunity, including: the gNB sets the following fields in the DCI format of the PDCCH:

[0135] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding scheme field, transmission block scaling field, tracking reference signal availability indication field and reserved bits field;

[0136] Among them, the value of the short message indication field is 00;

[0137] The short message field is reserved; or, when the DCI format carries a short message, the short message field is set according to TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved;

[0138] The tracking reference signal availability indication field is reserved, or this field is set according to the preset parameter trs-ResourceSetConfig: If the parameter is configured, the number of bits M of the reference signal availability indication field is determined according to the parameter; otherwise, M = 0.

[0139] Specifically, when it is allowed in the B-TRUNC 5G air interface protocol that the cluster paging occasion overlaps with the UE paging occasion in time, within the overlapping PDCCH occasions in the cluster paging occasion, the gNB may send the dynamic scheduling information of the cluster paging and the cluster paging change notification through the DCI format on the PDCCH scrambled with P-RNTI by CRC, or may also send the dynamic scheduling information of the UE paging and the short message through the DCI format on the PDCCH scrambled with P-RNTI by CRC. The gNB can distinguish the types of paging through specific fields in the DCI format.

[0140] Specifically, when it is stipulated in the B-TRUNC 5G air interface protocol that the cluster paging occasion is allowed to overlap with the UE paging occasion in time, when the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification through the DCI format on the PDCCH scrambled with P-RNTI by CRC within the cluster paging occasion, the gNB sets each field in the DCI format as follows:

[0141] Short Messages Indicator (short message indication field): 2 bits, the value of this field is: 00, the value of this field cannot be: 01, 10 or 11; the gNB distinguishes different paging types through this field: when the value of this field is "00", the corresponding paging is cluster paging, otherwise, the corresponding paging is UE paging.

[0142] Short Messages (short message field): 8 bits, this field is reserved, or it is determined whether this field is reserved according to whether the DCI format carries a short message: when the DCI format carries a short message, this field is set according to Section 6.5 in TS38.331, and when the DCI format does not carry a short message, this field is reserved;

[0143] Frequency domain resource assignment (frequency resource assignment field): bits; where is the size of CORESET 0;

[0144] Time domain resource assignment: 4 bits. The definition of this field is given in Section 5.1.2.1 of TS38.214;

[0145] VRB-to-PRB mapping: 1 bit. This bit is set according to Table 7.3.1.2.2-5 in TS38.212;

[0146] Modulation and coding scheme: 5 bits. The definition of this field is given in Section 5.1.3 of TS38.214. PCCH uses Table 5.1.3.1-1;

[0147] TB scaling: 2 bits. The definition of this field is given in Section 5.1.3.2 of TS38.214;

[0148] TRS availability indication: M bits. This field is reserved or set according to the parameter trs-ResourceSetConfig: If trs-ResourceSetConfig is configured, M = 1, 2, 3, 4, 5, or 6, and the specific value of M is equal to 1 plus the maximum value among all indBitID provided by trs-ResourceSetConfig. Otherwise, M = 0;

[0149] Reserved bits: (8–M) bits or (6–M) bits. This field is reserved. For a cell with shared spectrum channel access in FR1 or a cell in FR2-2, this field is (8-M) bits. For a cell with non-shared spectrum channel access, this field is (6-M) bits.

[0150] Method 3: When it is stipulated in the B-TRUNC 5G air interface protocol that the cluster paging opportunity is allowed to overlap with the UE paging opportunity in time, the gNB sends the dynamic scheduling information and cluster paging change notification of the cluster paging on the PDCCH with DCI format scrambled by P-RNTI through CRC within the cluster paging opportunity, including:

[0151] Within the PDCCH opportunity that does not overlap in the cluster paging opportunity, the gNB sets the following fields in the DCI format on the PDCCH:

[0152] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB to PRB mapping field, modulation and coding scheme field, transport block size ratio field, tracking reference signal availability indication field, and reserved bit field;

[0153] Among them, the short message indication field is reserved, or the short message indication field is set according to TS38.212 protocol;

[0154] When the short message indication field is reserved, the short message field is reserved; otherwise, when the DCI format carries a short message, the short message field is set according to TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved;

[0155] The tracking reference signal availability indication field is reserved, or this field is set according to the preset parameter trs-ResourceSetConfig: If the parameter is configured, the number of bits M of the reference signal availability indication field is determined according to the parameter; otherwise, M = 0;

[0156] In the PDCCH occasions overlapping in the cluster paging occasion, the gNB sets the following fields in DCI format 1_0 on the PDCCH:

[0157] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB to PRB mapping field, modulation and coding scheme field, transport block size ratio field, tracking reference signal availability indication field, and reserved bit field;

[0158] Among them, the value of the short message indication field is 00;

[0159] The short message field is reserved; or, when the DCI format carries a short message, the short message field is set according to TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved;

[0160] The tracking reference signal availability indication field is reserved, or this field is set according to the preset parameter trs-ResourceSetConfig: If the parameter is configured, the number of bits M of the reference signal availability indication field is determined according to the parameter; otherwise, M = 0.

[0161] Specifically, when it is stipulated in the B-TRUNC 5G air interface protocol that the cluster paging occasion is allowed to overlap with the UE paging occasion in time, within the PDCCH occasions that do not overlap in the cluster paging occasion, the gNB can only send the dynamic scheduling information of the cluster paging and the cluster paging change notification on the PDCCH scrambled by P-RNTI with CRC in the DCI format, and the gNB does not need to distinguish the type of paging through a specific field in the DCI format; within the PDCCH occasions that overlap in the cluster paging occasion, the gNB indicates the type of paging through a specific field in the DCI format on the PDCCH.

[0162] Specifically, when the cluster paging occasion is allowed to overlap with the UE paging occasion in time in the B-TRUNC 5G air interface protocol, when the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the PDCCH scrambled by P-RNTI with CRC in the DCI format within the PDCCH occasions that do not overlap in the cluster paging occasion, the gNB sets each field in the DCI format in the following manner:

[0163] Short Messages Indicator (Short message indication field): 2 bits, this field is reserved or set according to Table 7.3.1.2.1-1 in TS38.212 protocol;

[0164] Short Messages (Short message field): 8 bits, when the "Short Messages Indicator" field is reserved, this field is reserved; otherwise, when the DCI format carries a short message, it is set according to Section 6.5 in TS38.331, and when the DCI format does not carry a short message, this field is reserved;

[0165] Frequency domain resource assignment (Frequency resource allocation field): bits; among them, is the size of CORESET 0;

[0166] Time domain resource assignment (Time domain resource allocation field): 4 bits, the definition of this field is shown in Section 5.1.2.1 of TS38.214;

[0167] VRB-to-PRB mapping (VRB to PRB mapping field): 1 bit, this bit is set according to Table 7.3.1.2.2-5 in TS38.212 protocol;

[0168] Modulation and coding scheme (Modulation and Coding Scheme field): 5 bits. The definition of this field is given in Section 5.1.3 of TS 38.214, and PCCH uses Table 5.1.3.1-1;

[0169] TB scaling (Transport Block Scaling field): 2 bits. The definition of this field is given in Section 5.1.3.2 of TS 38.214;

[0170] TRS availability indication (Tracking Reference Signal Availability Indication field): M bits. This field is reserved or set according to the preset parameter trs-ResourceSetConfig: If trs-ResourceSetConfig is configured, M = 1, 2, 3, 4, 5, or 6, and the specific value of M is equal to 1 plus the maximum value among all indBitID provided by trs-ResourceSetConfig; otherwise, M = 0;

[0171] Reserved bits (Reserved Bits field): (8–M) bits or (6–M) bits. This field is reserved. For cells with shared spectrum channel access in FR1 or cells in FR2-2, this field is (8-M) bits; for cells with non-shared spectrum channel access, this field is (6-M) bits.

[0172] When it is specified in the B-TRUNC 5G air interface protocol that the cluster paging occasion is allowed to overlap with the UE's paging occasion in time, within the overlapping PDCCH occasions in the cluster paging occasion, when the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the DCI format on the PDCCH scrambled with P-RNTI by CRC, the gNB sets each field of the DCI format 1_0 on the PDCCH in the following manner:

[0173] Short Messages Indicator (Short Message Indicator field): 2 bits. The values of this field are: 00. The values of this field cannot be: 01, 10, or 11;

[0174] Short Messages (Short Message field): 8 bits. This field is reserved, or it is determined whether this field is reserved according to whether the DCI format carries a short message: When the DCI format carries a short message, this field is set according to Section 6.5 of TS 38.331; when the DCI format does not carry a short message, this field is reserved;

[0175] Frequency domain resource assignment (Frequency Domain Resource Assignment field): bits; among them, is the size of CORESET 0;

[0176] Time domain resource assignment: 4 bits. The definition of this field is given in Section 5.1.2.1 of TS38.214;

[0177] VRB-to-PRB mapping: 1 bit. This bit is set according to Table 7.3.1.2.2-5 in TS38.212;

[0178] Modulation and coding scheme: 5 bits. The definition of this field is given in Section 5.1.3 of TS38.214. PCCH uses Table 5.1.3.1-1;

[0179] TB scaling: 2 bits. The definition of this field is given in Section 5.1.3.2 of TS38.214;

[0180] TRS availability indication: M bits. This field is reserved or set according to the preset parameter trs-ResourceSetConfig: If trs-ResourceSetConfig is configured, M = 1, 2, 3, 4, 5, or 6, and the specific value of M is equal to 1 plus the maximum value among all indBitID provided by trs-ResourceSetConfig. Otherwise, M = 0;

[0181] Reserved bits: (8–M) bits or (6–M) bits. This field is reserved. For cells with shared spectrum channel access in FR1 or cells in FR2-2, this field is (8-M) bits. For cells with non-shared spectrum channel access, this field is (6-M) bits.

[0182] In Mode 3, when sending the dynamic scheduling information and the cluster paging change notification of the cluster paging through the DCI format, the setting method of the DCI format in the non-overlapping PDCCH opportunity is different from that in the overlapping PDCCH opportunity in terms of how to set the short message indication field: In the DCI format in the non-overlapping PDCCH opportunity, the short message indication field is set to "reserved" or set to: 00, 01, and 11. In the DCI format in the overlapping PDCCH opportunity, the short message indication field is set to "00".

[0183] Method 4: When it is specified in the B-TRUNC 5G air interface protocol that the cluster paging occasion is allowed to overlap with the UE paging occasion in time, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the PDCCH with DCI format scrambled by P-RNTI using CRC within the cluster paging occasion, including:

[0184] The gNB sets the following respective fields in the DCI format on the PDCCH:

[0185] Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding scheme field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field;

[0186] Among them, the setting method of each field is the same as the setting method of each field when DCI format 1_0 sends the dynamic scheduling information of UE paging and short messages;

[0187] Among them, a 1-bit paging type indication field is introduced in the preset sequence: when the DCI format carries the dynamic scheduling information of the cluster paging, this field is set to 1;

[0188] The preset sequence is a sequence composed of all the bits corresponding to the reserved fields in the DCI format and the reserved bits in the order in which they appear in the DCI format.

[0189] Specifically, when it is allowed in the B-TRUNC 5G air interface protocol that the cluster paging occasion overlaps with the UE paging occasion in time, within the overlapping PDCCH occasion in the cluster paging occasion, the gNB may send the dynamic scheduling information of the cluster paging and the cluster paging change notification on the PDCCH with DCI format scrambled by P-RNTI using CRC, or may send the dynamic scheduling information of UE paging and short messages on the PDCCH with DCI format scrambled by P-RNTI using CRC. The gNB can distinguish the type of paging through the newly introduced paging type indication field in the DCI format: when the DCI format carries the dynamic scheduling information of the cluster paging, there is a "paging type indication field" in the DCI format and this field is set to 1.

[0190] According to Method 4, the UE that does not support the cluster function ignores all the bits in the preset sequence when parsing the DCI format, directly receives the PDSCH dedicated to PCCH according to the respective fields corresponding to the other bits in the DCI format, and obtains the RRC message carried on the PDSCH dedicated to PCCH at the RRC (Radio Resource Control) layer. When the RRC message is a UE paging message, the UE performs the processing related to UE paging according to this message; when the RRC message is a cluster paging message, the UE cannot recognize this message and discards this message.

[0191] According to Method 4, a UE supporting the cluster function can identify the "paging type indication field" in the DCI format. When this field is set to 0, the UE determines that the dynamic scheduling information carrying normal paging is carried in the current DCI format, and the UE performs processing related to normal paging; when this field is set to 1, the UE determines that the dynamic scheduling information carrying cluster paging is carried in the current DCI format, and the UE performs processing related to cluster paging.

[0192] Optionally, the gNB sends the dynamic scheduling information of cluster paging and the cluster paging change notification through the DCI format on the PDCCH scrambled by P-RNTI with CRC during the cluster paging occasion, including:

[0193] The gNB introduces a 2-bit cluster paging change notification field in the DCI format on the PDCCH;

[0194] If there is a new group call on the PCCH during the current cluster paging cycle, the gNB sets the most significant bit in the cluster paging change notification field to 1;

[0195] If there is a new single call on the PCCH during the current cluster paging cycle, the gNB sets the least significant bit in the cluster paging change notification field to 1.

[0196] Paging includes group call and single call. By introducing a 2-bit cluster paging change notification field to respectively identify whether there are new group calls and new single calls in the group call list and single call list on the PCCH during the current cluster paging cycle compared with the group call list and single call list on the PCCH during the previous cluster paging cycle, the UE can selectively receive the PDSCH dedicated to the PCCH.

[0197] Optionally, the gNB introduces a 2-bit cluster paging change notification field in the DCI format on the PDCCH, including:

[0198] Taking the last 2 bits of the short message field in the DCI format as the cluster paging change notification field;

[0199] Or, taking the last 2 bits of a preset sequence in the DCI format as the cluster paging change notification field;

[0200] Or, taking the first 2 bits of a preset sequence in the DCI format as the cluster paging change notification field;

[0201] The preset sequence is a sequence composed of all the bits corresponding to the reserved fields in the DCI format and the reserved bits in the order in which they appear in the DCI format.

[0202] Specifically, the gNB sets the cluster paging change notification field in the reserved fields and reserved bits in the DCI format. When the cluster paging change notification field includes 2 bits, 2 bits are selected from the reserved fields or reserved bits as the cluster paging change notification field.

[0203] Optionally, the last 2 bits of the "Short Messages" field in the DCI format are used as the cluster paging change notification field; optionally, the last 2 bits are selected from the reserved fields and reserved bits in the DCI format as the cluster paging change notification field; optionally, the first 2 bits are selected from the reserved fields and reserved bits in the DCI format as the cluster paging change notification field.

[0204] Optionally, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the PDCCH DCI format scrambled with the P-RNTI by the CRC within the cluster paging occasion, including:

[0205] The gNB introduces a 1-bit cluster paging change notification field in the PDCCH DCI format;

[0206] If there is a new group call or a new single call on the PCCH within the current cluster paging cycle, the gNB sets the 1 bit in the cluster paging change notification field to 1.

[0207] By introducing a 1-bit cluster paging change notification field, the gNB can simply and conveniently indicate that there is a new group call or a new single call on the PCCH.

[0208] Optionally, the gNB introduces a 1-bit cluster paging change notification field in the PDCCH DCI format, including:

[0209] Taking the last 1 bit of the short message field in the DCI format as the cluster paging change notification field;

[0210] Or, taking the last 1 bit of the preset sequence in the DCI format as the cluster paging change notification field;

[0211] Or, taking the first 1 bit of the preset sequence in the DCI format as the cluster paging change notification field;

[0212] The preset sequence is a sequence composed of all the bits corresponding to the reserved fields in the DCI format and the reserved bits in the order in which they appear in the DCI format.

[0213] Specifically, the gNB sets the cluster paging change notification field in the reserved fields and reserved bits of the DCI format. When the cluster paging change notification field includes 1 bit, 1 bit is selected from the reserved fields or reserved bits as the cluster paging change notification field.

[0214] Optionally, the last bit of the "Short Messages" field in the DCI format is used as the cluster paging change notification field; optionally, the last 1 bit is selected from the reserved fields and reserved bits in the DCI format as the cluster paging change notification field; optionally, the first 1 bit is selected from the reserved fields and reserved bits in the DCI format as the cluster paging change notification field.

[0215] The execution processes on the UE side for the above four methods are described below respectively.

[0216] Optionally, when the UE monitors the PDCCH, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH, including:

[0217] When the cluster paging occasion is separated from the UE paging occasion in time, when the UE monitors the PDCCH, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the cluster paging and the cluster paging change notification;

[0218] If the UE has not obtained the cluster paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the cluster paging obtained by parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the cluster paging change notification field obtained by parsing.

[0219] The above execution process on the UE side corresponds to Method 1 executed on the gNB side above.

[0220] Optionally, when the UE monitors the PDCCH, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH, including:

[0221] When the allowed cluster paging occasion overlaps with the UE paging occasion in time, when the UE monitors the PDCCH, if the value of the short message indication field in the DCI format on the PDCCH is 00, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the cluster paging and the cluster paging change notification;

[0222] If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the group paging change notification field obtained by parsing;

[0223] If the value of the short message indication field in the DCI format on the PDCCH is not 00, and the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the UE paging and the short message, the UE executes the processing procedure corresponding to the UE paging.

[0224] The above execution process on the UE side corresponds to the second method executed on the above gNB side.

[0225] Optionally, when the PDCCH is monitored, the UE receives the PDSCH dedicated to the PCCH according to the group paging change notification in the DCI format on the PDCCH, including:

[0226] When the allowed group paging occasion overlaps with the UE paging occasion in time, and the UE monitors the PDCCH in the non-overlapping PDCCH occasion within the group paging occasion, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the group paging and the group paging change notification;

[0227] If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the group paging change notification field obtained by parsing;

[0228] When the UE monitors the PDCCH in the overlapping PDCCH occasion within the group paging occasion, if the value of the short message indication field in the DCI format on the PDCCH is 00, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the group paging and the group paging change notification;

[0229] If the UE has not obtained in-cell group paging through the PDSCH dedicated to the PCCH in the cell before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the group paging change notification field obtained by parsing;

[0230] If the value of the short message indication field in the DCI format on the PDCCH is not 00, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of UE paging and a short message, and then the UE executes the processing procedure corresponding to UE paging.

[0231] The above execution process on the UE side corresponds to Mode 3 executed on the above gNB side.

[0232] Optionally, when the PDCCH is monitored, the UE receives the PDSCH dedicated to the PCCH according to the group paging change notification in the DCI format on the PDCCH, including:

[0233] When the allowed group paging opportunity overlaps with the UE paging opportunity in time, when the PDCCH is monitored, if the value of the paging type indication field in the DCI format on the PDCCH is 1, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of group paging and a group paging change notification;

[0234] If the UE has not obtained in-cell group paging through the PDSCH dedicated to the PCCH in the cell before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the group paging change notification field obtained by parsing;

[0235] If the value of the paging type indication field in the DCI format on the PDCCH is not 1, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of UE paging and a short message, and then the UE executes the processing procedure corresponding to UE paging.

[0236] The above execution process on the UE side corresponds to Mode 4 executed on the above gNB side.

[0237] Optionally, the UE determines whether to continue to receive the PDSCH dedicated to the PCCH according to the group paging change notification field obtained by parsing, including:

[0238] When the cluster paging change notification field consists of 2 bits, if the most significant bit is 1, the UE determines that there is a new group call on the PCCH; if the least significant bit is 1, the UE determines that there is a new single call on the PCCH.

[0239] When there is a new single call on the PCCH, the UE continues to receive the PDSCH dedicated to the PCCH to determine whether it is paged.

[0240] When there is a new group call on the PCCH, if the UE is receiving the information of a group and the priority of the group is the highest priority, the UE continues to receive the PDSCH dedicated to the PCCH, or does not receive the PDSCH dedicated to the PCCH; if the UE is receiving the information of a group and the priority of the group is not the highest priority, the UE continues to receive the PDSCH dedicated to the PCCH.

[0241] Optionally, the UE determines whether to continue receiving the PDSCH dedicated to the PCCH according to the parsed cluster paging change notification field, including:

[0242] When the cluster paging change notification field consists of 1 bit, if the bit is 1, the UE determines that there is a new group call or a new single call on the PCCH and continues to receive the PDSCH dedicated to the PCCH.

[0243] Figure 2 The structural schematic diagram of the gNB device provided by the embodiment of the present application is as Figure 2 shown, the gNB device includes: at least one processor 201 and a memory 202; wherein, the processor 201 and the memory 202 are connected through a bus 203.

[0244] The memory 202 stores computer execution instructions;

[0245] The at least one processor 201 executes the computer execution instructions stored in the memory, so that the at least one processor 201 executes the following method:

[0246] In each cluster paging cycle, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the DCI format of the PDCCH scrambled by the P-RNTI in the cluster paging opportunity through the CRC, and sends the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the cluster paging, and the cluster paging message is carried on the PCCH; the cluster paging change notification is used to indicate whether there are new group calls and / or new single calls in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle.

[0247] Figure 3The structural schematic diagram of the UE device provided by the embodiment of the present application is as follows Figure 3 As shown, the UE device includes at least one processor 301 and a memory 302; wherein, the processor 301 and the memory 302 are connected through a bus 303.

[0248] The memory 302 stores computer-executable instructions;

[0249] The at least one processor 301 executes the computer-executable instructions stored in the memory 302, so that the at least one processor 301 executes the following method:

[0250] The UE listens for the PDCCH scrambled with P-RNTI for CRC in the cluster paging opportunity within each cluster paging cycle. When the PDCCH is detected, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH.

[0251] For the specific implementation processes of the processor 201 and the processor 301, reference may be made to the above method embodiments, which will not be elaborated here.

[0252] It should be understood that the present application is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A method for sending cluster paging in a B-TRUNC 5G system, characterized in that, it includes: Within each cluster paging cycle, the gNB sends dynamic scheduling information of cluster paging and a cluster paging change notification on a PDCCH scrambled with P-RNTI by CRC in the cluster paging opportunity, and sends a PDSCH dedicated to PCCH according to the dynamic scheduling information of the cluster paging. The cluster paging message is carried on the PCCH, and the cluster paging change notification is used to indicate whether there are new group calls and / or new single calls in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle; The UE listens to the PDCCH scrambled with P-RNTI by CRC in the cluster paging opportunity within each cluster paging cycle. When the PDCCH is detected, the UE receives the PDSCH dedicated to PCCH according to the cluster paging change notification in the DCI format on the PDCCH.

2. The method according to claim 1, characterized in that, When the cluster paging opportunity is separated from the UE paging opportunity in time, the method further includes: The gNB sets the following respective fields in the DCI format on the PDCCH: Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB to PRB mapping field, modulation and coding mode field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field; Among them, the short message indication field is reserved, or the short message indication field is set according to the TS38.212 protocol; When the short message indication field is reserved, the short message field is reserved; otherwise, when the DCI format carries a short message, the short message field is set according to the TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved; The tracking reference signal availability indication field is reserved, or this field is set according to a preset parameter: if the preset parameter is configured, the number of bits M of the reference signal availability indication field is determined according to the preset parameter; otherwise, M = 0.

3. The method according to claim 1, characterized in that, When it is allowed that the cluster paging opportunity overlaps with the UE paging opportunity in time, the method further includes: The gNB sets the following respective fields in the DCI format on the PDCCH: Short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB to PRB mapping field, modulation and coding mode field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field; Among them, the value of the short message indication field is 00; The short message field is reserved; or when the DCI format carries a short message, the short message field is set according to the TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved; The tracking reference signal availability indication field is reserved, or this field is set according to a preset parameter: if the preset parameter is configured, the number of bits M of the reference signal availability indication field is determined according to the preset parameter; otherwise, M = 0.

4. The method according to claim 1, It is characterized in that when the allowed cluster paging occasion overlaps with the UE paging occasion in time, the method further includes: within the PDCCH occasions that do not overlap in the cluster paging occasion, the gNB sets the following respective fields in the DCI format on the PDCCH: short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding mode field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field; wherein, the short message indication field is reserved, or the short message indication field is set according to the TS38.212 protocol; when the short message indication field is reserved, the short message field is reserved; otherwise, when the DCI format carries a short message, the short message field is set according to the TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved; the tracking reference signal availability indication field is reserved, or this field is set according to a preset parameter: if the preset parameter is configured, the number of bits M of the reference signal availability indication field is determined according to the preset parameter; otherwise, M = 0; within the PDCCH occasions that overlap in the cluster paging occasion, the gNB sets the following respective fields in the DCI format on the PDCCH: short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding mode field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field; wherein, the value of the short message indication field is 00; the short message field is reserved; or, when the DCI format carries a short message, the short message field is set according to the TS38.331 protocol, and when the DCI format does not carry a short message, the short message field is reserved; the tracking reference signal availability indication field is reserved, or this field is set according to a preset parameter: if the preset parameter is configured, the number of bits M of the reference signal availability indication field is determined according to the preset parameter; otherwise, M = 0.

5. The method according to claim 1, It is characterized in that when the allowed cluster paging occasion overlaps with the UE paging occasion in time, the method further includes: the gNB sets the following respective fields in the DCI format on the PDCCH: short message indication field, short message field, frequency resource allocation field, time domain resource allocation field, VRB-to-PRB mapping field, modulation and coding mode field, transport block ratio field, tracking reference signal availability indication field, and reserved bit field; wherein, a paging type indication field of 1 bit is introduced into a preset sequence: when the DCI format carries the dynamic scheduling information of the cluster paging, this field is set to 1; otherwise, this field is set to 0; the preset sequence is a sequence composed of all the bits corresponding to the respective fields reserved in the DCI format and the reserved bits in the order in which they appear in the DCI format.

6. The method according to any one of claims 2-5, It is characterized in that the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification in the DCI format on the PDCCH scrambled by P-RNTI through CRC within the cluster paging occasion, including: The gNB introduces a 2-bit cluster paging change notification field in the DCI format on the PDCCH; If there is a new group call on the PCCH within the current cluster paging cycle, the gNB sets the most significant bit in the cluster paging change notification field to 1; If there is a new single call on the PCCH within the current cluster paging cycle, the gNB sets the least significant bit in the cluster paging change notification field to 1.

7. The method according to any one of claims 2-5, characterized in that, The gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification through the PDCCH DCI format scrambled with P-RNTI by CRC within the cluster paging occasion, including: The gNB introduces a 1-bit cluster paging change notification field in the DCI format on the PDCCH; If there is a new group call or a new single call on the PCCH within the current cluster paging cycle, the gNB sets the 1 bit in the cluster paging change notification field to 1.

8. The method according to claim 6, characterized in that, The gNB introduces a 2-bit cluster paging change notification field in the DCI format on the PDCCH, including: Taking the last 2 bits of the short message field in the DCI format as the cluster paging change notification field; Or, taking the last 2 bits of a preset sequence in the DCI format as the cluster paging change notification field; Or, taking the first 2 bits of a preset sequence in the DCI format as the cluster paging change notification field; The preset sequence is a sequence formed by all the bits corresponding to the reserved fields in the DCI format and the reserved bits in the order in which they appear in the DCI format.

9. The method according to claim 7, characterized in that, The gNB introduces a 1-bit cluster paging change notification field in the DCI format on the PDCCH, including: Taking the last 1 bit of the short message field in the DCI format as the cluster paging change notification field; Or, taking the last 1 bit of a preset sequence in the DCI format as the cluster paging change notification field; Or, taking the first 1 bit of a preset sequence in the DCI format as the cluster paging change notification field; The preset sequence is a sequence formed by all the bits corresponding to the reserved fields in the DCI format and the reserved bits in the order in which they appear in the DCI format.

10. The method according to claim 2, characterized in that, When the PDCCH is detected, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH, including: When the cluster paging occasion is separated from the UE paging occasion in time, when the PDCCH is detected, the UE determines that the DCI format on the detected PDCCH carries the dynamic scheduling information of the cluster paging and the cluster paging change notification; If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the group paging change notification field obtained by parsing.

11. The method according to claim 3, characterized in that when the PDCCH is monitored, the UE receives the PDSCH dedicated to the PCCH according to the group paging change notification in the DCI format on the PDCCH, including: when the allowed group paging occasion overlaps with the UE paging occasion in time, when the PDCCH is monitored, if the value of the short message indication field in the DCI format on the PDCCH is 00, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the group paging and the group paging change notification; If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the group paging change notification field obtained by parsing; if the value of the short message indication field in the DCI format on the PDCCH is not 00, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the UE paging and the short message, and the UE executes the processing procedure corresponding to the UE paging.

12. The method according to claim 4, characterized in that when the PDCCH is monitored, the UE receives the PDSCH dedicated to the PCCH according to the group paging change notification in the DCI format on the PDCCH, including: when the allowed group paging occasion overlaps with the UE paging occasion in time, when the UE monitors the PDCCH in the PDCCH occasion that does not overlap in the group paging occasion, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the group paging and the group paging change notification; If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the group paging obtained by parsing; otherwise, the UE parses each field of the DCI format and determines whether to continue to receive the PDSCH dedicated to the PCCH according to the group paging change notification field obtained by parsing; When the UE monitors the PDCCH in the overlapping PDCCH occasions within the group paging occasion, if the value of the short message indication field in the DCI format on the PDCCH is 00, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the group paging and the group paging change notification; If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the obtained dynamic scheduling information of the group paging; otherwise, the UE parses each field of the DCI format and determines whether to continue receiving the PDSCH dedicated to the PCCH according to the obtained group paging change notification field; If the value of the short message indication field in the DCI format on the PDCCH is not 00, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the UE paging and the short message, and the UE executes the processing procedure corresponding to the UE paging.

13. The method according to claim 5, characterized in that When monitoring the PDCCH, the UE receives the PDSCH dedicated to the PCCH according to the group paging change notification in the DCI format on the PDCCH, including: When the group paging occasion is allowed to overlap with the UE paging occasion in time, when monitoring the PDCCH, if the value of the paging type indication field in the DCI format on the PDCCH is 1, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the group paging and the group paging change notification; If the UE has not obtained the group paging within the cell through the PDSCH dedicated to the PCCH before, the UE parses each field of the DCI format and continues to receive the PDSCH dedicated to the PCCH according to the obtained dynamic scheduling information of the group paging; otherwise, the UE parses each field of the DCI format and determines whether to continue receiving the PDSCH dedicated to the PCCH according to the obtained group paging change notification field; If the value of the paging type indication field in the DCI format on the PDCCH is not 1, the UE determines that the DCI format on the monitored PDCCH carries the dynamic scheduling information of the UE paging and the short message, and the UE executes the processing procedure corresponding to the UE paging.

14. The method according to any one of claims 10-13, characterized in that The UE determines whether to continue receiving the PDSCH dedicated to the PCCH according to the obtained group paging change notification field, including: When the group paging change notification field consists of 2 bits, if the most significant bit is 1, the UE determines that there is a new group call on the PCCH; if the least significant bit is 1, the UE determines that there is a new single call on the PCCH; When there is a new single call on the PCCH, the UE continues to receive the PDSCH dedicated to the PCCH to determine whether it is paged; When there is a new group call on the PCCH, if the UE is receiving information of a group and the priority of the group is the highest priority, the UE continues to receive the PDSCH dedicated to the PCCH, or does not receive the PDSCH dedicated to the PCCH; if the UE is receiving information of a group and the priority of the group is not the highest priority, the UE continues to receive the PDSCH dedicated to the PCCH.

15. The method according to any one of claims 10-13, characterized in that the UE determines whether to continue receiving the PDSCH dedicated to the PCCH according to the cluster paging change notification field obtained by parsing, including: When the cluster paging change notification field consists of 1 bit, if the bit is 1, the UE determines that there is a new group call or a new single call on the PCCH and continues to receive the PDSCH dedicated to the PCCH.

16. A gNB device, characterized in that comprising: at least one processor and a memory; the memory stores computer-executable instructions; the at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the following method: In each cluster paging cycle, the gNB sends the dynamic scheduling information of the cluster paging and the cluster paging change notification on the PDCCH scrambled by P-RNTI with CRC in the cluster paging occasion, and sends the PDSCH dedicated to the PCCH according to the dynamic scheduling information of the cluster paging. The cluster paging message is carried on the PCCH, and the cluster paging change notification is used to indicate whether there are new group calls and / or new single calls in the cluster paging message in the current cluster paging cycle compared with the cluster paging message in the previous cluster paging cycle.

17. A UE device, characterized in that comprising: at least one processor and a memory; the memory stores computer-executable instructions; the at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the following method: The UE listens to the PDCCH scrambled by P-RNTI with CRC in the cluster paging occasion in each cluster paging cycle. When the PDCCH is detected, the UE receives the PDSCH dedicated to the PCCH according to the cluster paging change notification in the DCI format on the PDCCH.

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