CN-122002572-A - Method, device, equipment and readable storage medium for transmitting downlink channel

CN122002572ACN 122002572 ACN122002572 ACN 122002572ACN-122002572-A

Abstract

The application discloses a transmission method, a device, equipment and a readable storage medium of a downlink channel, which belong to the technical field of communication, wherein the method of the embodiment of the application comprises the steps that a terminal determines whether to start a target transmission function, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the repeated transmission times of the target downlink channel and the resource positions of the target resource sets according to first information; the terminal receives a target downlink channel in at least one target resource set, wherein the target downlink channel repeatedly transmits or bears the same content on one or more target resource sets.

Inventors

TAN JUNJIE
LIU SIQI
JI ZICHAO
WANG YONG
WANG ZHEN

Assignees

维沃移动通信有限公司

Dates

Publication Date: 20260508
Application Date: 20241108

Claims (20)

1. A method for transmitting a downlink channel, comprising: The terminal determines at least one of whether to start a target transmission function, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmission times of a target downlink channel and the resource positions of the target resource sets according to the first information; The terminal receives a target downlink channel in at least one target resource set; And the target downlink channel repeatedly transmits or carries the same content on one or more target resource sets.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises, The plurality of target resource sets are located in the same first time unit, or the plurality of target resource sets are located in different first time units; Wherein, in case that the plurality of target resource sets are located in the same first time unit, at least one target resource set of the plurality of target resource sets and the candidate synchronization signal block SSB position occupy a second time unit are not overlapped, or at least one target resource set of the plurality of target resource sets and the candidate SSB position occupy a second time unit are at least partially overlapped; or in case the multiple target resource sets are located in different first time units, In a case where at least one target resource set of the plurality of target resource sets is associated with a first SSB index, and the first SSB index is an SSB index in which transmission actually occurs, other target resource sets of the plurality of target resource sets are associated with candidate SSB indexes of non-first SSB indexes, the number of the candidate SSB indexes being at least one; Or alternatively The plurality of target resource sets comprise at least two target resource sets, the intervals of the at least two target resource sets are X third time units, the X third time units comprise time intervals occupied by 1 SSB burst, time intervals occupied by half system frames or time intervals occupied by 1 system frame, and X is a positive integer.
3. The method of claim 2, wherein, in the case where at least one of the plurality of target resource sets is associated with a first SSB index, the first SSB index being an SSB index where transmission actually occurred, and other of the plurality of target resource sets are associated with candidate SSB indexes other than the first SSB index, the first information further indicates at least one of: a list of the non-first SSB indices; the number of the non-first SSB indices; An offset of the non-first SSB index; regarding at least one listening occasion or transmission occasion associated with the non-first SSB index as a target set of resources for the first SSB index; Wherein at least one of the list of non-first SSB indices, the number of non-first SSB indices, and the offset of the non-first SSB indices is used to determine a target set of resources associated with the first SSB index.
4. The method of claim 2, wherein, in the case where the plurality of target resource sets includes a first target resource set and a second target resource set, The initial position of the first target resource set in the first time unit is a specific time position, and the time position is at least one of absolute time, a system frame number, a time slot index and a symbol index; Or alternatively The first target resource set and the second target resource set are separated by one or more time units, and the time units are at least one of time slots, symbols, system frames and milliseconds.
5. The method according to any one of claims 1 to 4, wherein the first information comprises a first parameter for determining at least one of a resource location of a target resource set, a candidate transmission location or a listening location of the target resource set; The first parameter is obtained by at least one mode of protocol definition and network side indication; wherein the network side indication comprises at least one of: The network side directly indicates the first parameter; the network side indicates at least one set of first parameters of a plurality of sets of first parameters, wherein the plurality of sets of first parameters are defined by a protocol.
6. The method of claim 5, wherein the first parameter is associated with at least one of: the target downlink channel; At least one repeated transmission of the repeated transmissions of the target downlink channel; At least one target resource set of the plurality of target resource sets.
7. The method of claim 1, wherein in the case where the first information indicates that a plurality of target resource sets are used for repeated transmission of the same downlink channel through an association relationship, the first information further includes at least one of: The period and the first offset of each target resource set in the plurality of target resource sets, wherein the period of at least part of the target resource sets in the plurality of target resource sets is the same, or the first offsets of at least part of the target resource sets in the plurality of target resource sets are different; A period of at least one of the plurality of target resource sets, and a second offset for each of the plurality of target resource sets; a period of at least one of the plurality of target resource sets, a third offset of at least one of the plurality of target resource sets, and a fourth offset of other of the plurality of target resource sets; Wherein the first offset or the second offset or the third offset is used to indicate a position of the target resource set within the period, and the fourth offset is used to indicate an offset of the other target resource set relative to the third offset of the at least one target resource set.
8. The method of claim 1, wherein the plurality of target resource sets are associated with the SSB index by a first mapping scheme, the first mapping scheme comprising at least one of a sequential mapping, a sequential mapping; wherein, the continuous mapping means that the SSB indexes and the target resource sets are sequentially associated according to the sequence of the SSB indexes; The sequential mapping means that after all SSB indexes are respectively associated with N target resource sets in the target resource sets, all SSB indexes are respectively associated with M target resource sets in the target resource sets, and the sequential mapping is repeated until all target resource sets in the target resource sets are mapped, wherein M and N are positive integers.
9. The method of claim 1, wherein at least a portion of the bits of the first information are carried by at least one of: At least part of bits of the master information block MIB; at least a portion of bits of a resource block offset of a first control resource set CORESET, the first CORESET being for transmission of a physical downlink control channel PDCCH of a scheduling system information block SIB 1; a partial entry in a table indicated by the first CORESET; Wherein, the At least some bits of the MIB include at least one of: at least a portion of bits of a common subcarrier spacing subCarrierSpacingCommon of the MIB; At least part of bits of the synchronization signal block subcarrier offset ssb-SubcarrierOffset of the MIB; at least part of bits of half-frame bits in the MIB; specific fields defined in the MIB.
10. The method of claim 1, wherein the first information is associated with a partial parameter or configuration of at least one of MIB, SIB, SSB.
11. The method of claim 1, wherein the first information further comprises first time information for determining at least one of a number of target resource sets, a number of repeated transmissions of the target downlink channel, a resource location of the target resource set, a candidate transmission location of the target resource set, or a listening location.
12. The method of claim 11, wherein the first time information comprises at least one of a length of the first window, a period of the first window, an offset of the first window; wherein the first window satisfies at least one of: the first window is periodic or aperiodic; The first window is a transmission time interval TTI of the target downlink channel; the first window is a time window for transmitting a specific channel; the first window is a time window for beam activation or beam starting, or is a time window for cell discontinuous transmission or cell discontinuous reception starting, or is a time window for transmitting SSB.
13. The method according to claim 2, wherein the method further comprises: If at least one target resource set and a first channel or signal occupied resource at least partially overlap, the terminal performs a first operation, the first operation including at least one of: ignoring or skipping the first channel or signal; ignoring or skipping overlapping target resource sets; puncturing or rate matching resources overlapping the target set of resources in the case of receiving the first channel or signal; And under the condition that the target resource set receives the target downlink channel, punching or rate matching is carried out on the resources overlapped with the first channel or the signal occupied resources.
14. The method of claim 1, wherein the first information indicates at least one of enabling or disabling the target transport function for a particular downlink channel, and configuring or reconfiguring at least one target resource set of the target transport function for a particular downlink channel.
15. The method of claim 14, wherein the first information indicates at least one of enabling or disabling a target transport function for a particular downlink channel, configuring or reconfiguring at least one target resource set of the target transport function for the particular downlink channel by a first indication; Wherein the first indication mode comprises at least one of the following: radio resource control, RRC, or MIB, or SIB, or medium access control, MAC, control element, CE, indication; a specific downlink control information DCI format indication; DCI indication carried at a specific set of target resources; An adjacent cell indication; And (5) indicating different systems.
16. The method according to claim 14, wherein the terminal receiving a target downlink channel at least one target resource set in case the first information explicitly or implicitly indicates that the target transmission function is enabled, comprising: the terminal determines a plurality of target resource sets according to the indication of the first information or the protocol convention; the terminal receives a target downlink channel in at least one target resource set of the target resource sets; Or alternatively In the case that the first information explicitly or implicitly indicates to turn off the target transmission function, the terminal receives a target downlink channel in at least one target resource set, including: the terminal determines a target resource set according to the indication of the first information or the protocol convention; and the terminal receives the target downlink channel in the target resource set.
17. The method of claim 16, wherein the first information explicitly or implicitly indicates that the target transport function is enabled, comprising at least one of: the target resource set indicated by the first information is a resource set with a target transmission function enabled; The first information indicates that multiple target resource sets are associated with the same target downlink channel.
18. The method of claim 1, wherein the first information is carried by at least one of: a target downlink control channel associated to the scheduling target downlink channel; a target downlink control channel for scheduling a target downlink channel; RRC or MIB or SIB or MAC CE.
19. The method of claim 18, wherein in the case where the first information is carried over a target downlink control channel of a scheduled target downlink channel, the method further comprises: the terminal determines the resource position of a target resource set of the target downlink channel according to the target downlink control channel indication of the scheduling target downlink channel; the target downlink control channel indication of the scheduling target downlink channel is used for indicating at least one of the following: intervals between a plurality of target resource sets of the target downlink channel; the interval between the target downlink channel and the target downlink control channel.
20. The method of claim 1, wherein in the event that a downlink data channel scheduled by a control channel carried by the target resource set collides with SSB transmissions, the number of timeslots or repetitions of the downlink data channel is counted in terms of available timeslots or available repetitions of transmissions, the available timeslots or available repetitions being determined by at least one of SSB candidate locations, uplink frame configurations, downlink frame configurations.

Description

Method, device, equipment and readable storage medium for transmitting downlink channel Technical Field The application belongs to the technical field of communication, and particularly relates to a downlink channel transmission method, a device, equipment and a readable storage medium. Background In non-terrestrial network (Non Terrestrial Network, NTN) communications, or narrowband or low power consumption communications systems, the link budget for the downlink channel may be subject to a larger gap due to longer communication distances or weaker device capabilities. This results in a lower energy of the received signal, which reduces the probability of successful reception of the control information and thus affects the transmission reliability of the downlink control channel. Disclosure of Invention The embodiment of the application provides a transmission method, a device and equipment for a downlink channel and a readable storage medium, which can improve the transmission reliability of the downlink control channel. In a first aspect, a method for transmitting a downlink channel is provided, including: The terminal determines at least one of whether to start a target transmission function, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmission times of a target downlink channel and the resource positions of the target resource sets according to the first information; The terminal receives a target downlink channel in at least one target resource set; And the target downlink channel repeatedly transmits or carries the same content on one or more target resource sets. In a second aspect, a method for transmitting a downlink channel is provided, including: The network side equipment sends first information which is used for determining whether a target transmission function is started or not, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the repeated transmission times of a target downlink channel, and the resource positions of the target resource sets; And the network side equipment transmits the target downlink channel through at least one target resource set. In a third aspect, a transmission apparatus for a downlink channel is provided, including a first transceiver unit and a first processing unit; the first processing unit is used for determining whether to start a target transmission function, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the repeated transmission times of a target downlink channel and the resource positions of the target resource sets according to the first information; The first transceiver unit is configured to receive a target downlink channel in at least one target resource set; wherein the target downlink channel repeatedly transmits or carries the same content on one or more target resource sets. In a fourth aspect, a transmission apparatus for a downlink channel is provided, including a second transceiver unit and a second processing unit; the second transceiver unit is used for transmitting first information, and the first information is used for determining whether a target transmission function is started or not, the number of target resource sets, the number of candidate transmission positions or monitoring positions of the target resource sets, the number of repeated transmission times of a target downlink channel, and the resource positions of the target resource sets; the second transceiver unit is further configured to send the target downlink channel through at least one target resource set. In a fifth aspect, there is provided a transmission apparatus for a downlink channel, the apparatus being configured to perform the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect. In a sixth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the first aspect. In a seventh aspect, a terminal is provided, which includes a processor and a communication interface, wherein the processor determines, according to first information, whether to enable a target transmission function, a number of target resource sets, a number of candidate transmission positions or monitoring positions of the target resource sets, a number of repeated transmissions of a target downlink channel, and a resource position of the target resource set, and the communication interface is configured to receive the target downlink channel in at least one target resource set, where the target downlink channel repeatedly transmits or carries the same content on one or more targ