Paging early indication method and apparatus
The present disclosure relates to a paging early indication method and apparatus. The paging early indication method comprises: receiving a paging early indication (PEI) sent by a base station, wherein the PEI corresponds to one or more paging occasions (POs); and determining, on the basis of the PEI, a manner in which a downlink channel in the one or more POs is monitored. According to the present disclosure, information contained in the PEI is expanded, and compared with the related art in which the PEI only indicates whether a terminal needs to monitor paging DCI in the corresponding PO, the PEI in the embodiments may further indicate a manner in which the terminal monitors a downlink channel in the corresponding PO, expanding the indication function of the PEI, and increasing the utilization efficiency of the PEI, so that the terminal can achieve more functions according to the PEI, for example, synchronization may be performed according to the manner in which the downlink channel is monitored, or software and hardware preparations may be made in advance according to the manner in which the downlink channel is monitored.
1 . A paging early indication method, performed by a user equipment (UE), the method comprising:
receiving a Paging Early Indication (PEI) from a network device, wherein the PEI corresponds to one or more Paging Occasions (POs); and
determining, based on the PEI, a manner of monitoring a downlink channel at the one or more POs;
wherein the PEI comprises a plurality of information fields, and the determining, based on the PEI, the manner of monitoring the downlink channel at the one or more POs, comprises:
determining an information field associated with the UE from the plurality of information fields in the PEI; and
determining, based on a value of the information field, the manner of monitoring the downlink channel at the one or more POs.
2 . The method of claim 1 , wherein the manner of monitoring the downlink channel comprises one of:
monitoring only a Physical Downlink Control Channel (PDCCH); or
monitoring the downlink channel including a Physical Downlink Share Channel (PDSCH).
3 . The method of claim 2 , further comprising:
performing synchronization with the network device for the downlink channel monitored at the one or more POs based on the manner of monitoring the downlink channel.
4 . The method of claim 3 , wherein the performing synchronization with the network device for the downlink channel monitored at the one or more POs based on the manner of monitoring the downlink channel, comprises:
determining a synchronization accuracy required to receive the downlink channel based on the manner of monitoring the downlink channel; and
performing synchronization, according to the synchronization accuracy, for the downlink channel monitored at the one or more POs.
5 . The method of claim 4 , wherein the performing synchronization, according to the synchronization accuracy, for the downlink channel monitored at the one or more POs, comprises:
determining a number of synchronization sequence blocks required for the synchronization accuracy;
monitoring at least the number of synchronization sequence blocks before each PO of the one or more POs; and
performing synchronization for the downlink channel monitored at each PO based on the monitored synchronization sequence blocks.
6 . The method of claim 4 , wherein the determining the synchronization accuracy required to receive the downlink channel based on the manner of monitoring the downlink channel, comprises:
determining that the manner of monitoring the downlink channel is to monitor only the PDCCH, determining the synchronization accuracy as a first accuracy; and
determining that the manner of monitoring the downlink channel is to monitor the downlink channel including the PDSCH, determining the synchronization accuracy as a second accuracy;
wherein the first accuracy is lower than the second accuracy.
7 . The method of claim 1 , wherein the determining, based on the PEI, the manner of monitoring the downlink channel at the one or more POs, comprises:
receiving the PEI, determining to wake up before the one or more POs; and
determining, based on the PEI, the manner of monitoring the downlink channel at the one or more POs.
8 . The method of claim 1 , wherein the determining, based on the PEI, the manner of monitoring the downlink channel at the one or more POs, comprises:
determining whether to wake up before the one or more POs based on the received PEI; and
determining to wake up before the one or more POs, determining, based on the PEI, the manner of monitoring the downlink channel at the one or more POs.
9 . The method of claim 1 , wherein the receiving the PEI from the network device comprises at least one of:
receiving a sequence carrying the PEI from the network device; or
receiving a Downlink Control Information (DCI) carrying the PEI from the network device.
10 . A paging early indication method, performed by a network device, the method comprising:
transmitting a Paging Early Indication (PEI) corresponding to one or more Paging Occasions (POs) to a user equipment (UE);
wherein the PEI is configured to indicate to the UE a manner of monitoring a downlink channel at the one or more POs; and
the PEI comprises a plurality of information fields, an information field in the plurality of information fields is associated with a group of UEs, and the information field associated with the group of UEs is configured to indicate the group of UEs to determine the manner of monitoring the downlink channel at the one or more POs based on a value of the information field.
11 . The method of claim 10 , wherein the manner of monitoring the downlink channel comprises one of:
monitoring only a Physical Downlink Control Channel (PDCCH); or
monitoring the downlink channel including a Physical Downlink Share Channel (PDSCH).
12 . The method of claim 10 , wherein the PEI is configured to indicate first indication information and second indication information; and
wherein the first indication information is configured to indicate the UE to wake up before the one or more POs; and
the second indication information is configured to indicate the UE to determine the manner of monitoring the downlink channel at the one or more POs.
13 . The method of claim 10 , wherein the PEI is configured to indicate at least one of third indication information or fourth indication information; and
wherein the third indication information is configured to indicate the UE to determine whether to wake up before the one or more POs; and
the fourth indication information is configured to indicate the UE to determine the manner of monitoring the downlink channel at the one or more POs.
14 . The method of claim 10 , wherein the transmitting the PEI corresponding to the one or more POs to the UE, comprises at least one of:
transmitting a sequence carrying the PEI to the UE; or
transmitting a Downlink Control Information (DCI) carrying the PEI to the UE.
15 . A user equipment (UE), comprising:
a processor; and
a memory for storing instructions executable by the processor;
wherein the processor is configured to:
receive a Paging Early Indication (PEI) from a network device, wherein the PEI corresponds to one or more Paging Occasions (POs); and
determine, based on the PEI, a manner of monitoring a downlink channel at the one or more POs;
wherein the PEI comprises a plurality of information fields, and the processor is further configured to:
determine an information field associated with the UE in the PEI from the plurality of information fields in the PEI; and
determine, based on a value of the information field, the manner of monitoring the downlink channel at the one or more POs.
16 . A non-transitory computer readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor of a user equipment (UE), causes the UE to perform the method of claim 1 .
17 . A network device, comprising:
a processor; and
a memory for storing instructions executable by the processor;
wherein the processor is configured to perform the method of claim 11 .
18 . A non-transitory computer readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor of a network device, causes the network device to perform the method of claim 10 .
19 . The method of claim 1 , wherein the PEI is transmitted by the network device to the UE, any information field in the plurality of information fields is associated with a group of UEs, and different information fields are associated with different UEs.
20 . The method of claim 10 , wherein the transmitting the PEI corresponding to one or more POs to the UE comprises:
transmitting the PEI to a plurality of groups of UEs, respectively;
wherein different information fields are associated with different UEs, and for any group of UEs, the PEI comprises an information field associated with the group of UEs.