US-12621798-B2 - Channel detection method and apparatus, and user equipment

US12621798B2US 12621798 B2US12621798 B2US 12621798B2US-12621798-B2

Abstract

A channel detection method and apparatus, a device and a user equipment are disclosed. The method includes: receiving, by a UE, a paging indication signal transmitted by a network device, where the paging indication signal is used for instructing the UE whether to detect a paging downlink control channel in K POs, the K POs are K POs after the paging indication signal is received, and K is a positive integer.

Inventors

Kai Wu
Dajie Jiang
Dongru LI

Assignees

VIVO MOBILE COMMUNICATION CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20230328
Priority Date: 20200928

Claims (20)

1 . A channel detection method, comprising: determining, by a user equipment (UE) according to first information, a time domain transmission resource of a paging indication signal transmitted by a network device, the first information comprising an index of a synchronization signal and physical broadcast channel block (SSB) associated with the paging indication signal; receiving, by the UE, the paging indication signal on the determined time domain transmission resource, wherein the paging indication signal is used for instructing the UE whether to detect a paging physical downlink control channel (PDCCH) in K paging occasions (POs), the K POs are K POs after the paging indication signal is received, and K is a positive integer.
2 . The method according to claim 1 , wherein the first information further comprises at least one of the following: a paging PDCCH monitoring occasion in a PO; or a UE group in which the UE is located.
3 . The method according to claim 1 , wherein the determining, by a user equipment (UE) according to first information, a time domain transmission resource of a paging indication signal transmitted by a network device comprises: determining, by the UE, the time domain transmission resource according to an SSB index order on a second transmission resource based on an association sequence, wherein the second transmission resource comprises a transmission resource of at least one paging indication signal; and the SSB index order is an order of the index of the SSB associated with the paging indication signal, and the association sequence is an association sequence of the SSB associated with the paging indication signal and the second transmission resource.
4 . The method according to claim 3 , wherein the determining, by the UE, the time domain transmission resource according to an SSB index order on a second transmission resource based on an association sequence comprises: determining, by the UE, the time domain transmission resource according to the SSB index order on a preset time domain resource in the second transmission resource based on the association sequence, wherein the preset time domain resource comprises at least one of the following: a downlink slot, a special slot, a downlink symbol, or a flexible symbol.
5 . The method according to claim 3 , wherein the second transmission resource comprises at least one of the following: a transmission resource comprising all or a part of transmission symbols of the SSB; a transmission resource having an offset of a preset time interval in time domain from a transmission resource of the SSB; or a transmission resource associated with the transmission resource of the SSB based on the association sequence.
6 . The method according to claim 3 , wherein the association sequence comprises at least one of the following: a time sequence, a frequency sequence, a time-preceding-frequency sequence, or a frequency-preceding-time sequence.
7 . The method according to claim 1 , wherein the receiving, by the UE, the paging indication signal on the determined time domain transmission resource comprises: receiving, by the UE, the paging indication signal on the determined time domain transmission resource based on a first quasi co-located (QCL) relationship, wherein the first QCL relationship is a QCL relationship between the paging indication signal and the SSB associated with the paging indication signal.
8 . The method according to claim 1 , wherein the paging indication signal is a signal sequence, and the signal sequence occupies one or more orthogonal frequency division multiplex (OFDM) symbols.
9 . The method according to claim 8 , wherein the signal sequence occupies a plurality of OFDM symbols; and the receiving, by the UE, the paging indication signal on the determined time domain transmission resource comprises: receiving, by the UE, the signal sequence on the determined time domain transmission resource according to second information, wherein the second information comprises at least one of the following: a generation manner for the signal sequence or a second QCL relationship; and the generation manner is a manner for the network device to generate the signal sequence, and the second QCL relationship is a QCL relationship between a plurality of signal sequences transmitted on the plurality of OFDM symbols.
10 . The method according to claim 9 , wherein the second information comprises the generation manner; and before the receiving, by the UE, the signal sequence on the determined time domain transmission resource according to second information, the method further comprises: determining, by the UE, the generation manner according to third information, wherein the third information comprises at least one of the following: an index of a system frame number (SFN) in which the signal sequence is located; an index of a slot in which the signal sequence is located; an index of a symbol in which the signal sequence is located; an index of an SSB associated with the signal sequence; an instruction by the signal sequence of whether to detect a paging PDCCH; an index of a UE group detecting a paging PDCCH; an index of a time domain transmission resource transmitting the signal sequence; a number of a cell on which the UE camps; or a number of a cell to which the network device transmits the paging indication signal.
11 . The method according to claim 1 , wherein the receiving, by the UE, the paging indication signal transmitted by the network device on the determined time domain transmission resource comprises: receiving, by the UE, the paging indication signal on the determined time domain transmission resource in a case that the determined time domain transmission resource overlaps with a third transmission resource for performing a first event in time domain.
12 . The method according to claim 11 , wherein N transmission occasions in the time domain transmission resource overlap with the third transmission resource in the time domain, and N is a positive integer; and the receiving, by the UE, the paging indication signal on the determined time domain transmission resource comprises: receiving, by the UE, the paging indication signal on the determined time domain transmission resource in a case that N is less than a second threshold.
13 . The method according to claim 11 , wherein the first event comprises at least one of the following: transmitting a random access channel, transmitting an MSG3, transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) of an MSG4, receiving a random access response (RAR), receiving an MSGB, receiving a downlink shared channel of an MSG4, receiving a random access radio network temporary identifier (RA-RNTI), receiving a PDCCH scrambled by a temporary cell radio network temporary identifier (TC-RNTI), receiving an SSB, receiving a channel state information reference signal (CSI-RS), or receiving a tracking reference signal (TRS).
14 . The method according to claim 1 , wherein before the receiving, by the UE, the paging indication signal transmitted by the network device, the method further comprises: determining, by the UE, a second power of the paging indication signal according to a first power, wherein the first power is a power of the SSB associated with the paging indication signal or a power of the paging PDCCH associated with the paging indication signal; and the receiving, by the UE, the paging indication signal transmitted by the network device comprises: receiving, by the UE, the paging indication signal according to the second power.
15 . The method according to claim 14 , wherein the second power is the same as the first power; or a difference between the second power and the first power is less than a first threshold; or the difference between the second power and the first power is a predefined value or a value indicated by the network device.
16 . A user equipment (UE), comprising a processor, a memory, and instructions stored on the memory and runnable on the processor, wherein the instructions, when being executed by the processor, implements: determining, according to first information, a time domain transmission resource of a paging indication signal transmitted by a network device, the first information comprising an index of a synchronization signal and physical broadcast channel block (SSB) associated with the paging indication signal; receiving the paging indication signal on the determined time domain transmission resource, wherein the paging indication signal is used for instructing the UE whether to detect a paging PDCCH in K paging occasions (POs), the K POs are K POs after the paging indication signal is received, and K is a positive integer.
17 . The UE according to claim 16 , wherein the first information further comprises at least one of the following: a paging PDCCH monitoring occasion in a PO; or a UE group in which the UE is located.
18 . The UE according to claim 16 , wherein the determining, according to first information, a time domain transmission resource of a paging indication signal transmitted by a network device comprises: determining the time domain transmission resource according to an SSB index order on a second transmission resource based on an association sequence, wherein the second transmission resource comprises a transmission resource of at least one paging indication signal; and the SSB index order is an order of the index of the SSB associated with the paging indication signal, and the association sequence is an association sequence of the SSB associated with the paging indication signal and the second transmission resource.
19 . The UE according to claim 16 , wherein the receiving the paging indication signal on the determined time domain transmission resource comprises: receiving the paging indication signal on the determined time domain transmission resource based on a first quasi co-located (QCL) relationship, wherein the first QCL relationship is a QCL relationship between the paging indication signal and the SSB associated with the paging indication signal.
20 . The UE according to claim 16 , wherein the instructions, when being executed by the processor, further implements: before the receiving the paging indication signal transmitted by the network device, determining a second power of the paging indication signal according to a first power, wherein the first power is a power of the SSB associated with the paging indication signal or a power of the paging PDCCH associated with the paging indication signal; and wherein the receiving the paging indication signal transmitted by the network device comprises: receiving the paging indication signal according to the second power.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of PCT International Application No. PCT/CN2021/120647 filed on Sep. 26, 2021, which claims priority to Chinese Patent Application No. 202011043669.0 filed on Sep. 28, 2020, which are incorporated herein by reference in their entireties. TECHNICAL FIELD This application relates to the field of communications technologies, and specifically, to a channel detection method and apparatus, and a user equipment. BACKGROUND A user equipment (UE) in an idle state can receive a paging physical downlink control channel (PDCCH). The paging PDCCH can be used for paging a UE, transmitting a commercial mobile alert service (CMAS), transmitting an earthquake and tsunami warning system (ETWS), and the like. However, a probability that the UE is paged in one paging occasion (PO) is relatively low. Therefore, if the UE periodically detects (or may be referred to as monitoring) the paging PDCCH, it is highly probable that the UE cannot detect the paging PDCCH, causing unnecessary paging PDCCH detection of the UE, thereby wasting power of the UE. SUMMARY According to a first aspect, a channel detection method is provided, including: receiving, by a UE, a paging indication signal transmitted by a network device, where the paging indication signal is used for instructing the UE whether to detect a paging downlink control channel in K POs, the K POs are K POs after the paging indication signal is received, and K is a positive integer. According to a second aspect, a channel detection apparatus is provided, including a receiving module. The receiving module is configured to receive a paging indication signal transmitted by a network device, where the paging indication signal is used for instructing a UE whether to detect a paging downlink control channel in K POs, the K POs are K POs after the paging indication signal is received, and K is a positive integer. According to a third aspect, a UE is provided, including a processor, a memory, and a program or instruction stored on the memory and runnable on the processor, where when the program or instruction is executed by the processor, the steps of the method according to the first aspect are implemented. According to a fourth aspect, a readable storage medium is provided, storing a program or instruction, where when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented. According to a fifth aspect, a chip is provided, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a network device program or instruction to implement the steps of the method according to the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic architectural diagram of a communication system according to an embodiment of this application; FIG. 2 is a schematic flowchart of a channel detection method according to an embodiment of this application; FIG. 3 is a schematic mapping diagram 1 of a paging indication signal according to an embodiment of this application; FIG. 4 is a schematic mapping diagram 2 of a paging indication signal according to an embodiment of this application; FIG. 5 is a schematic mapping diagram 3 of a paging indication signal according to an embodiment of this application; FIG. 6 is a schematic mapping diagram 4 of a paging indication signal according to an embodiment of this application; FIG. 7 is a schematic mapping diagram 5 of a paging indication signal according to an embodiment of this application; FIG. 8 is a schematic mapping diagram 6 of a paging indication signal according to an embodiment of this application; FIG. 9 is a schematic mapping diagram 7 of a paging indication signal according to an embodiment of this application; FIG. 10 is a schematic structural diagram of a channel detection apparatus according to an embodiment of this application; FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of this application; and FIG. 12 is a schematic diagram of hardware of a UE according to an embodiment of this application. DETAILED DESCRIPTION The following clearly describes the technical solutions in embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some of the embodiments of this application rather than all of the embodiments. All other embodiments derived by a person of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the protection scope of this application. In the specification and claims of this application, the terms “first”, “second”, and the like are used to distinguish similar objects, but are not used to describe a specific sequence or order. It may be understood that the terms used in such a way is inte