CN111835490A

CN111835490A - Channel transmission method, equipment and system

Info

Publication number: CN111835490A
Application number: CN201910786015.8A
Authority: CN
Inventors: 宋扬; 吴昱民
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-10-27
Anticipated expiration: 2039-08-23
Also published as: CN111835490B; WO2021036584A1

Abstract

The embodiment of the invention discloses a channel transmission method, equipment and a system, which relate to the technical field of communication and aim to solve the problem that the communication quality is reduced or the communication is interrupted due to the phenomenon of reconfiguration failure in the conventional scene that UE (user equipment) moves or rotates rapidly. The method comprises the following steps: determining a target transmission parameter corresponding to the target information from a channel configuration information set according to the target information; and transmitting or receiving a target channel according to the target transmission parameter. The method can be applied to the channel transmission scene of the terminal equipment.

Description

Channel transmission method, equipment and system

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a channel transmission method, equipment and a system.

Background

At present, a plurality of Transmission Reception Points (TRPs) may be used between a network device and a terminal device (UE) to transmit data, so as to improve reliability and throughput of data Transmission.

In the process of transmitting data by using multiple TRPs between a network device and a UE, when the UE moves, rotates or is shielded by other objects, the UE may need to reselect the TRP, which may cause the TRP of the data transmitted between the network device and the UE to be changed (including replacing the TRP, adding the TRP, deleting the TRP, etc.). When the network device determines that a TRP needs to be changed for a UE, the network device may reconfigure, through Radio Resource Control (RRC) signaling, Physical Downlink Control Channel (PDCCH) configuration information PDCCH-Config, Physical Downlink Shared Channel (PDSCH) configuration information PDSCH-Config, Physical Uplink Control Channel (PUCCH) configuration information PUCCH-Config, and Physical Uplink Shared Channel (PUSCH) configuration information PUSCH-Config for the UE corresponding to the changed TRP.

However, since the transmission process of the RRC signaling is complex, the time required by the above method for reconfiguring PDCCH configuration information through RRC signaling is long, and in a scenario where the UE moves or rotates fast, a reconfiguration failure may occur, thereby causing a communication quality degradation or a communication interruption.

Disclosure of Invention

Embodiments of the present invention provide a channel transmission method, device, and system, to solve the problem of communication quality degradation or communication interruption caused by a phenomenon of reconfiguration failure in the current scenario where a UE moves or rotates quickly.

In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:

in a first aspect, an embodiment of the present invention provides a channel transmission method, which may be applied to a UE, and the method includes: determining a target transmission parameter corresponding to the target information from a channel configuration information set according to the target information; and transmitting or receiving a target channel according to the target transmission parameter.

In a second aspect, an embodiment of the present invention provides a channel transmission method, where the method may be applied to a network device, and the method includes: indicating target information to User Equipment (UE), wherein the target information is used for determining target transmission parameters corresponding to the target information from a channel configuration information set; and receiving or transmitting the target channel according to the target transmission parameter.

In a third aspect, an embodiment of the present invention provides a UE, where the UE includes a determining module and a transceiver module. The determining module is used for determining a target transmission parameter corresponding to the target information from the channel configuration information set according to the target information. The receiving and sending module is used for sending or receiving the target channel according to the target transmission parameter determined by the determining module.

In a fourth aspect, an embodiment of the present invention provides a network device, where the network device includes a transceiver module, where the transceiver module is configured to indicate target information to a user equipment UE, where the target information is used to determine a target transmission parameter corresponding to the target information from a channel configuration information set; and receiving or transmitting the target channel according to the target transmission parameter.

In a fifth aspect, an embodiment of the present invention provides a UE, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the channel transmission method provided in the first aspect.

In a sixth aspect, an embodiment of the present invention provides a network device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and when executed by the processor, the computer program implements the steps of the channel transmission method provided in the second aspect.

In a seventh aspect, an embodiment of the present invention provides a communication system, where the communication system includes the UE in the third aspect and the network device in the fourth aspect. Alternatively, the communication system includes the UE in the fifth aspect and the network device in the sixth aspect.

In an eighth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the channel transmission method in the first aspect or the second aspect.

In the embodiment of the present invention, a target transmission parameter corresponding to target information may be determined from a channel configuration information set according to the target information; and according to the target transmission parameter, transmitting or receiving a target channel; wherein the target information is a TRP used by the network equipment for indicating to change to provide service for the UE; the set of channel configuration information is pre-configured for the UE by the network device before indicating the target information to the UE. Through the scheme, compared with the prior TRP which is changed and reconfigured through RRC signaling (longer reconfiguration time), the embodiment of the invention indicates the target information to the UE through the MAC CE, determines the target transmission parameter from the channel configuration information set which is configured to the UE in advance by the network equipment, and further can transmit the target channel according to the target transmission parameter, thereby realizing the rapid reconfiguration of the channel configuration information after the TRP is changed and ensuring the continuity of the communication quality.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a channel transmission method according to an embodiment of the present invention;

fig. 3 is a second schematic diagram of a channel transmission method according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a UE according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 6 is a second schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 7 is a hardware diagram of a UE according to an embodiment of the present invention;

fig. 8 is a hardware schematic diagram of a network device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The term "and/or" herein is an association relationship describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The symbol "/" herein denotes a relationship in which the associated object is or, for example, a/B denotes a or B.

The terms "first" and "second," and the like, in the description and in the claims of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first channel configuration information, the second channel configuration information, and the like are used to distinguish different channel configuration information, and are not used to describe a specific order of the channel configuration information.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the embodiments of the present invention, unless otherwise specified, "a plurality" means two or more, for example, a plurality of processing units means two or more processing units, and the like.

The embodiment of the invention provides a channel transmission method, equipment and a system, which can determine a target transmission parameter corresponding to target information from a channel configuration information set according to the target information; and according to the target transmission parameter, transmitting or receiving a target channel; wherein the target information is a TRP used by the network equipment for indicating to change to provide service for the UE; the set of channel configuration information is pre-configured for the UE by the network device before indicating the target information to the UE. Through the scheme, compared with the prior TRP which is changed and reconfigured through RRC signaling (longer reconfiguration time), the embodiment of the invention indicates the target information to the UE through the MAC CE, determines the target transmission parameter from the channel configuration information set which is configured to the UE in advance by the network equipment, and further can transmit the target channel according to the target transmission parameter, thereby realizing the rapid reconfiguration of the channel configuration information after the TRP is changed and ensuring the continuity of the communication quality.

The channel transmission method, the device and the system provided by the embodiment of the invention can be applied to a communication system. For example, in channel transmission, the method can be applied to a process of transmitting data between the UE and the network device based on the communication system.

Fig. 1 illustrates an architecture diagram of a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system may include a UE 01 and a network device 02. Wherein, the connection between the UE 01 and the network device 02 can be established.

It should be noted that, in the embodiment of the present invention, the UE 01 and the network device 02 shown in fig. 1 may be in wireless connection.

A UE is a device that provides voice and/or data connectivity to a user, a handheld device with wired/wireless connectivity, or other processing device connected to a wireless modem. A UE may communicate with one or more core Network devices via a Radio Access Network (RAN). The UE may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, or a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, that exchanges speech and/or data with the RAN, such as a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and so on. A UE may also be referred to as a User Agent (User Agent) or a terminal device, etc.

A network device is a device deployed in a RAN for providing wireless communication functionality for a UE. In the embodiment of the present invention, the network device may be a base station, and the base station may include various macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices that function as base stations may differ. For example, in a 5G system, it may be referred to as a 5G base station (gNB), TRP; in a fourth Generation wireless communication (4-Generation, 4G) system, such as a Long Term Evolution (LTE) system, it may be referred to as an evolved NodeB (eNB); in a third generation mobile communication (3G) system, it may be referred to as a base station (Node B). As communication technology evolves, the name "base station" may change.

The following describes in detail a channel transmission method, a device, and a system provided in an embodiment of the present invention with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Based on the communication system shown in fig. 1, an embodiment of the present invention provides a channel transmission method, which may include steps 201 to 205 described below, as shown in fig. 2.

Step 201, the network equipment indicates the target information to the UE.

Wherein the target information is a TRP used by the network equipment to indicate to change to provide service for the UE.

Optionally, in this embodiment of the present invention, the target information may be a target channel configuration information identifier, or may be at least one target TRP identifier, or may be a target BWP identifier, or may be at least one target TRP identifier, or may be at least one target parameter identifier, or may be at least one target Transmission Configuration Identifier (TCI), or may be any other information meeting an actual use requirement, which may specifically be determined according to the actual use requirement, which is not limited in this embodiment of the present invention. Hereinafter, detailed description will be made for the target information in combination with the application scenario, which is not described herein again.

Optionally, in this embodiment of the present invention, the network device may indicate the target information to the UE through physical layer information or Media Access Control (MAC) layer information.

Specifically, in the embodiment of the present invention, the network device may indicate the target Information to the UE through a physical layer Control signaling, i.e., Downlink Control Information (DCI) or a Control Element (CE) of a MAC layer.

Step 202, the UE receives the target information.

In this embodiment of the present invention, the UE may receive target information indicated by the network device through the MAC CE, for example, the target information may carry a target channel configuration information identifier, or at least one target TRP identifier, or a target BWP identifier, or at least one target parameter identifier, or at least one target TCI, which is to be used after the validation time.

Step 203, the UE determines a target transmission parameter corresponding to the target information from the channel configuration information set according to the target information.

The channel configuration information set is pre-configured for the UE by the network device before indicating the target information to the UE. The channel configuration set corresponds to transmission parameters of a plurality of TRPs, and the target transmission parameter is a transmission parameter of one TRP of the plurality of TRPs. That is, the network device configures a plurality of transmission parameters of the TRP for the terminal through the channel configuration set, and when the TRP serving the terminal is changed, the terminal may select the transmission parameter corresponding to the TRP from the channel configuration set according to the target information sent by the network device. Wherein, the target information may carry indication information for indicating the altered TRP.

Optionally, in this embodiment of the present invention, the network device may configure the channel configuration information set to the UE through RRC signaling.

Step 204, the UE sends or receives the target channel according to the target transmission parameter.

Step 205, the network device receives or transmits the target channel according to the target transmission parameter.

Specifically, in the embodiment of the present invention, in a case where the network device sends a target channel, the UE receives the target channel; in the case where the UE transmits a target channel, the network device receives the target channel. The method can be determined according to actual use requirements, and the embodiment of the invention is not limited. The channel transmission method provided by the embodiment of the invention comprises the steps of receiving, sending, searching, detecting or monitoring the channel and the like.

It should be noted that, the execution order of step 204 and step 205 may not be limited by the embodiment of the present invention. That is, in the embodiment of the present invention, step 204 may be executed first, and then step 205 may be executed; step 205 may be executed first, and then step 204 may be executed; step 204 and step 205 may also be performed simultaneously. It is to be understood that fig. 2 illustrates the step 205 being executed first and then the step 204 being executed.

Optionally, in this embodiment of the present invention, the target channel may be any one of the following: PUCCH, PDCCH, PUSCH, PDSCH.

For convenience of description, the PDCCH configuration information may be denoted as PDCCH-Config, the PDSCH configuration information may be denoted as PDSCH-Config, the PUCCH configuration information may be denoted as PUCCH-Config, and the PUSCH configuration information may be denoted as PUSCH-Config.

Optionally, in the embodiment of the present invention, the channel configuration information set may include multiple pieces of channel configuration information, or may include one piece of channel configuration information.

In the following, by a first implementation manner and a second implementation manner, a specific implementation manner of a channel transmission method in a case where a channel configuration information set includes a plurality of channel configuration information and a specific implementation manner of a channel transmission method in a case where a channel configuration information set includes one channel configuration information are respectively described.

First implementation

In a first implementation, the set of channel configuration information may include a plurality of channel configuration information. For example, the set of channel configuration information may include at least one of: a plurality of PDCCH-configs, a plurality of PDSCH-configs, a plurality of PUCCH-configs, and a plurality of PUSCH-configs.

The following exemplarily illustrates transmission parameters that may be included in each of the channel configuration information (i.e., PDCCH-Config, PDSCH-Config, PUCCH-Config, and PUSCH-Config).

Illustratively, the PDCCH-Config may include transmission parameters such as Control Resource Set (CORESET), TCI, and so on.

For example, the PDSCH-Config may include transmission parameters such as scrambling parameters.

Exemplarily, the PUCCH-Config may include a PUCCH resource set (PUCCH resource set), a power control parameter, and other transmission parameters.

Exemplarily, the PUSCH-Config may include the power control parameter.

In this embodiment of the present invention, when the channel configuration information set includes a plurality of channel configuration information, a transmission parameter included in each channel configuration information may correspond to one TRP set.

The TRP set may include at least one TRP, for example, one TRP, or two TRPs, or more than two TRPs, which may be determined according to actual use requirements, and the embodiment of the present invention is not limited.

For convenience of explanation, hereinafter, a network device pre-configures a plurality of PDCCH-configs for a UE as an example, and exemplarily illustrates a channel transmission method provided in an embodiment of the present invention.

For example, taking the transmission parameter of PDCCH-Config as CORESET as an example, since the transmission parameter CORESET of PDCCH-Config is associated with TRP, the corresponding relationship between PDCCH-Config and TRP can be determined according to the association relationship between CORESET and TRP.

Wherein different PDCCH-Config may be distinguished by different IDs, for example PDCCH-Config ID0, PDCCH-Config ID1, PDCCH-Config ID2, PDCCH-Config ID3 may indicate four different channel configuration information, respectively. Different CORESETs within each PDCCH-Config may have different identities to distinguish, e.g. CORESET ID1, CORESET ID2 may indicate two different CORESETs, respectively. In addition, different TRPs may also be distinguished by different IDs, e.g. TRP ID0, TRP ID1, TRP ID2 may indicate three different TRPs, respectively. The correlation between the CORESET and the TRP can be determined by configuring the TRP ID corresponding to the CORESET ID.

Illustratively, assume that the PDCCH-Config indicated by PDCCH-Config ID0 includes two CORESET (indicated by CORESET ID1 and CORESET ID2, respectively), wherein the two CORESET correspond to different TRPs, for example, the CORESET indicated by CORESET ID1 may be associated with the TRP indicated by TRP ID0, and the CORESET indicated by CORESET ID2 may be associated with the TRP indicated by TRPID 1. Then, the transmission parameters of PDCCH-Config indicated by PDCCH-Config 0 may correspond to TRPs (i.e., the above-mentioned one TRP set) indicated by TRPID0 and TRP ID1, respectively, as shown in table 1 below.

It should be noted that the role of TRP markers is to distinguish between different TRPs. Optionally, in this embodiment of the present invention, the TRP identifier may be an identifier configured by a higher layer signaling, or an actual TRP identifier, or a cell identifier, and may be specifically determined according to an actual use requirement, which is not limited in this embodiment of the present invention.

TABLE 1

In the embodiment of the present invention, the transmission parameters included based on each piece of channel configuration information may correspond to one TRP set, and it can be understood that each piece of channel configuration information may correspond to one TRP set, for example, one PDCCH-Config may correspond to one TRP, or correspond to two TRPs, or correspond to more than two TRPs. Illustratively, referring to table 1 above, the PDCCH-Config indicated by PDCCH-Config 0 may correspond to the TRP indicated by TRP ID0 and TRP ID1 (i.e., the one TRP set described above).

Optionally, in this embodiment of the present invention, in a case that the channel configuration information set includes a plurality of channel configuration information, (1) the plurality of channel configuration information may be within one bandwidth part BWP configuration information; or (2) the plurality of channel configuration information may be within a plurality of BWP configuration information, and each BWP configuration information may include at least one channel configuration information among the plurality of channel configuration information.

A specific implementation of the channel transmission method provided by the embodiment of the present invention in case (2) above and a specific implementation of the channel transmission method provided by the embodiment of the present invention in case (2) above are respectively described in the following first and second ways.

The first method is as follows:

optionally, in a case that the set of channel configuration information includes a plurality of channel configuration information and the plurality of channel configuration information is within one BWP configuration information, the target information may be a target channel configuration information identifier or may be at least one target TRP identifier.

Optionally, in a possible implementation manner, assuming that the target information is a target channel configuration information identifier, the step 203 may be specifically implemented by the following step 203a and step 203 b.

Step 203a, the UE determines, according to the target channel configuration information identifier, first channel configuration information corresponding to the target channel configuration information identifier from the multiple pieces of channel configuration information.

Step 203b, the UE determines the transmission parameter in the first channel configuration information as the target transmission parameter.

For example, after the UE receives the PDCCH-Config ID (i.e., the target information) indicated by the network device, the UE may determine, from the PDCCH-Config ID, a PDCCH-Config corresponding to the PDCCH-Config ID from among the plurality of PDCCH-configs, and determine a transmission parameter (e.g., at least including parameters such as CORESET) in the PDCCH-Config as the target transmission parameter. Further, the UE may receive the PDCCH according to the target transmission parameter.

Alternatively, in another possible implementation manner, assuming that the target information is at least one target TRP identifier, the step 203 may be specifically implemented by the following steps 203c and 203 d.

Step 203c, the UE determines first channel configuration information corresponding to the target TRP identifier from the plurality of channel configuration information according to the target TRP identifier.

Step 203d, the UE determines the transmission parameter in the first channel configuration information as the target transmission parameter.

For example, after the UE receives the TRP ID (i.e., the target information) indicated by the network device, the UE may determine, according to the TRP ID, a PDCCH-Config corresponding to the TRP ID from among the plurality of PDCCH-configs, and determine a transmission parameter (e.g., a parameter including at least CORESET) in the PDCCH-Config as a target transmission parameter. Further, the UE may receive the PDCCH according to the target transmission parameter.

For example, assume that a target cell (cell) contains 5 TRPs (TRP ID0 TRP ID4), a maximum of 5 CORESET is supported by a UE, and a maximum of 2 TRPs are supported for transmission by the UE. The network equipment configures a plurality of PDCCH-configs for the UE in advance through RRC signaling. Wherein, the plurality of PDCCH-configs may include at least one PDCCH-Config containing one CORESET group identity (e.g. TRP ID) or not configured with the CORESET group identity, at least one PDCCH-Config containing two CORESET group identities, etc.

It should be noted that, assuming that the CORESET indicated by the CORESET ID1 and the CORESET ID2 are both associated with the TRP indicated by the TRP ID0, the CORESET ID1 and the CORESET ID2 may be referred to as belonging to a CORESET group (group), and the identity of the CORESET group may be understood as the TRP ID 0.

Table 2 below exemplarily shows a correspondence relationship of PDCCH-Config and TRP set.

PDCCH-Config ID	CORESET-associated TRP ID
		0	TRP ID0,TRP ID1
1	TRP ID0,TRP ID2
		2	TRP ID0,TRP ID3
3	TRP ID0,TRP ID4
		4	TRP ID1,TRP ID2
5	TRP ID1,TRP ID4
		6	TRP ID2,TRP ID3
7	TRP ID3,TRP ID4
		8	TRP ID4

TABLE 2

When the UE enters the target cell, the network device may configure all or part of PDCCH-Config in bandwidth part (BWP) configuration information to the UE through RRC signaling. Then, the network device may indicate the currently used PDCCH-Config ID to the UE through the MAC CE, and the UE receives the PDCCH using the PDCCH-Config configuration parameter (e.g., CORESET) corresponding to the PDCCH-Config ID. Moreover, when the TRP serving the UE is changed, the network device may also indicate the PDCCH-Config ID newly used to the UE through the MAC CE, and accordingly, the UE may receive the PDCCH using the PDCCH-Config configuration parameter (e.g., CORESET) corresponding to the PDCCH-Config ID.

Exemplarily, in combination with the above table 2, when the network device determines that the TRP corresponding to the TRP ID0 and TRP ID3 serves the UE, the network device may indicate PDCCH-Config ID2 (i.e., the above target information) to the UE through the MAC CE; accordingly, the UE may receive the PDCCH using PDCCH-Config configuration parameters (e.g., parameters including at least CORESET, etc.) corresponding to the PDCCH-Config ID 2.

Further exemplarily, in combination with table 2 above, when the network device determines that only the TRP corresponding to the TRP ID4 serves the UE, the network device may indicate any one of PDCCH-Config ID3, PDCCH-Config ID5, PDCCH-Config ID7, or PDCCH-Config ID8 (i.e., the above target information) to the UE through the MAC CE; accordingly, the UE may receive the PDCCH using the indicated PDCCH-Config configuration parameters (e.g., parameters including at least CORESET, etc.) corresponding to the PDCCH-Config ID.

Further exemplarily, in combination with the above table 2, when the network device determines that the TRP corresponding to the TRP ID0 and TRP ID3 serves the UE, the network device may indicate the TRP ID0 and TRP ID3 (i.e., the above target information) to the UE through the MAC CE; accordingly, the UE may determine a corresponding PDCCH-Config ID2 according to the TRP ID0 and the TRP ID3, and receive the PDCCH using PDCCH-Config configuration parameters (e.g., parameters including at least CORESET) corresponding to the PDCCH-ConfigID 2.

It should be noted that the number of PDCCH-Config and the number of TRP corresponding to each PDCCH-Config in table 2 are exemplary lists, and may be determined according to actual use requirements, and the embodiment of the present invention is not limited.

It should also be noted that, based on the location relationship of each TRP to the UE (e.g. two TRPs are far apart or separated by another TRP), some two or more TRPs within a cell may not be able to serve one UE at the same time. For example, if TRP ID1 and TRP ID3 each correspond to a TRP that is far apart, then it is almost impossible for the two TRPs to serve one UE at the same time; if the TRP corresponding to TRP ID2 and TRP ID4 is separated by another TRP, then the TRP corresponding to TRP ID2 and TRP ID4 is unlikely to serve one UE at the same time. The network device may not configure these impossible channel configuration information. For example, in table 2, neither PDCCH-Config corresponding to TRP ID1 or TRP ID3 nor PDCCH-Config corresponding to TRP ID2 or TRP ID4 is configured.

In the embodiment of the invention, compared with the prior TRP which is changed and reconfigured through RRC signaling (longer reconfiguration time), the embodiment of the invention indicates the target information to the UE through the MAC CE, determines the target transmission parameter from the channel configuration information set which is configured to the UE in advance by the network equipment, and further can transmit the target channel according to the target transmission parameter, thereby realizing the rapid reconfiguration of the channel configuration information after the TRP is changed and ensuring the continuity of the communication quality.

Mode two

Optionally, in a case that the set of channel configuration information includes a plurality of channel configuration information, and the plurality of channel configuration information are within a plurality of BWP configuration information (for example, the plurality of PDCCH-Config are within the plurality of BWP configuration information, respectively), the target information may be identified as a target BWP. The target BWP identity may be used to instruct the UE to handover to the BWP corresponding to the target BWP identity.

Optionally, in this embodiment of the present invention, the network device may send the target BWP identifier to the UE through DCI signaling to instruct the UE to switch the BWP, or may configure a timer through RRC signaling to instruct the UE to switch the BWP after the effective time.

In the embodiment of the present invention, since the network device configures a plurality of Downlink BWP (BWP-Downlink) configuration information, and a PDCCH-Config and a PDSCH-Config included in each Downlink BWP configuration information may correspond to at least one TRP ID, the network device instructs the UE to switch BWP, which means to switch TRP for the UE.

For example, in the embodiment of the present invention, it is assumed that the target information is a target BWP identifier, and the step 203 may be specifically implemented by the following step 203e and step 203 f.

Step 203e, the UE determines at least one second channel configuration information corresponding to the target BWP identifier according to the target BWP identifier;

step 203f, the UE determines the transmission parameter in the at least one second channel configuration information as the target transmission parameter.

For example, in the embodiment of the present invention, the UE may determine, according to the BWP ID, BWP configuration information corresponding to the BWP ID; at least one channel configuration information (e.g., a plurality of PDCCH-configs: PDCCH-Config ID0 and PDCCH-Config ID1) among the BWP configuration information may then be determined as at least one second channel configuration information; and determining the transmission parameters (for example, parameters including at least CORESET) in the at least one second channel configuration information as the target transmission parameters. Further, the UE may receive the PDCCH according to the target transmission parameter.

In the embodiment of the invention, the network equipment indicates the UE to switch the BWP, which means that the TRP is switched for the UE, so that the rapid reconfiguration after the TRP is changed can be realized.

Second implementation

In a second implementation, the set of channel configuration information may include one piece of channel configuration information, for example, the set of channel configuration information may include any one of the following: one PDCCH-Config, one PDSCH-Config, one PUCCH-Config, one PUSCH-Config. Wherein, the transmission parameter included in the channel configuration information corresponds to all TRPs or part of TRPs in the cell where the UE is located.

For specific description of the transmission parameters included in the channel configuration information, reference may be made to related description of the transmission parameters included in the channel configuration information in the first implementation manner of the foregoing embodiment, which is not described herein again.

Optionally, in this embodiment of the present invention, when the channel configuration information set includes one piece of channel configuration information, the target information may include any one of the following items: at least one target TRP ID, at least one target parameter identity, at least one target TCI.

The target parameter identifier may be a scrambling code parameter identifier, or a power control parameter identifier, or any other parameter identifier that meets the actual use requirement, and may specifically be determined according to the actual use requirement, which is not limited in the embodiment of the present invention.

For convenience of explanation, hereinafter, a network device pre-configures a PDCCH-Config for a UE as an example to exemplarily explain a channel transmission method provided in an embodiment of the present invention.

Specifically, all possible CORESET configurations of TRPs in a cell where the UE is located are given in one PDCCH-Config configured through RRC signaling, and the CORESET group identifications to be used by the UE after the effective time or the CORESETs belonging to the CORESET group identifications are indicated through the MAC CE.

That is, the network device configures only one PDCCH-Config for the UE, which contains possible CORESET (all CORESET or part of CORESET) associated with all TRPs in the cell in which the UE is located.

For example, when the UE enters a target cell (including 5 TRPs: TRP ID 0-TRP ID4), the network device configures the UE with a PDCCH-Config through RRC signaling, and the PDCCH-Config may include CORESET associated with the 5 TRPs. Table 3 below exemplarily shows all CORESET associated with all TRPs in the cell where the UE is located within PDCCH-Config.

CORESET ID	Associated TRP ID
		1	TRP ID0
2	TRP ID0
		3	TRP ID1
4	TRP ID1
		5	TRP ID2
6	TRP ID2
		7	TRP ID3
8	TRP ID3
		9	TRP ID4
10	TRP ID4

TABLE 3

Specific implementation manners of the channel transmission method provided by the embodiments of the present invention are respectively described below for a case where the target information includes at least one target TRP ID, the target information includes at least one target parameter identifier, and the target information includes at least one target TCI.

(1) Optionally, in the embodiment of the present invention, it is assumed that the target information includes at least one target TRP ID, and then the step 203 may be specifically implemented by the following step 203 g.

Step 203g, the UE determines a transmission parameter corresponding to at least one target TRP ID among transmission parameters included in one piece of channel configuration information as a target transmission parameter.

For example, in conjunction with table 3 above, assuming that the network device pre-configures a PDCCH-Config for the UE, after the UE receives the TRP ID0 (i.e., the target information) indicated by the network device, the UE may determine, as the target transmission parameters, transmission parameters CORESET ID0 and CORESET ID1 corresponding to TRP ID0 from among the transmission parameters included in the PDCCH-Config.

Specifically, after the network device indicates the currently used TRP ID to the UE through the MAC CE, the UE may receive the PDCCH on all CORESET associated with the TRP ID. For example, in conjunction with table 3 above, when the network device determines that the TRP corresponding to TRP ID0 and TRP ID3 serves the UE, the network device indicates TRP ID0 and TRP ID3 to the UE through the MAC CE, and the UE searches for a possible PDCCH on CORESET IDs 1, 2, 7, 8. For example, in conjunction with table 3 above, when the network device determines that only the TRP corresponding to TRPID4 serves the UE, the network device indicates TRP ID4 to the UE through MAC CE, and the UE searches for a possible PDCCH on CORESET IDs 9, 10.

Alternatively, after the network device indicates the currently used CORESET ID to the UE through the MAC CE, the UE may search for PDCCH on these CORESETs. For example, in conjunction with table 3 above, when the network device determines that the TRP corresponding to TRP ID0 and TRP ID3 serves the UE, the network device indicates CORESET IDs 1, 2, 7, 8 or portions thereof to the UE through the MAC CE, and the UE searches for possible PDCCHs on these indicated CORESETs. For example, in conjunction with table 3 above, when the network device determines that only the TRP corresponding to TRP ID4 serves the UE, the network device indicates CORESET IDs 9, 10 or portions thereof to the UE through the MAC CE, and the UE searches for possible PDCCHs on these indicated CORESETs.

(2) Optionally, in this embodiment of the present invention, it is assumed that the target information includes at least one target parameter identifier, and then the step 203 may be specifically implemented by the following step 203 h.

Step 203h, the UE determines a transmission parameter corresponding to at least one target parameter identifier from the transmission parameters included in one piece of channel configuration information as a target transmission parameter.

For example, assuming that the network device pre-configures one PDSCH-Config for the UE, after the UE receives the scrambling parameter identifier (i.e., the above target information) indicated by the network device, the UE may determine, as the target transmission parameter, a transmission parameter corresponding to the scrambling parameter identifier from among transmission parameters included in the PDSCH-Config.

(3) Optionally, in this embodiment of the present invention, if the target information includes at least one target TCI, the step 203 may be specifically implemented by the following step 203 i.

Step 203i, the UE determines, as a target transmission parameter, a transmission parameter corresponding to at least one target TCI from the transmission parameters included in one piece of channel configuration information.

In the embodiment of the invention, under a multi-TRP scene of a cell, a network device configures a PDCCH-Config and a PDSCH-Config for UE, the network device can indicate TCI used by CORESET to the UE through MAC CE, and the TRP selection and switching can be realized by determining the transmission parameter (such as CORESET) corresponding to the TCI in the transmission parameters included in a piece of channel configuration information as a target transmission parameter.

According to the channel transmission method provided by the embodiment of the invention, the target transmission parameter corresponding to the target information can be determined from the channel configuration information set according to the target information; and according to the target transmission parameter, transmitting or receiving a target channel; wherein the target information is a TRP used by the network equipment for indicating to change to provide service for the UE; the set of channel configuration information is pre-configured for the UE by the network device before indicating the target information to the UE. Compared with the prior TRP which is changed and reconfigured through RRC signaling (longer reconfiguration time), the embodiment of the invention indicates the target information to the UE through the MAC CE, determines the target transmission parameter from the channel configuration information set which is configured to the UE in advance by the network equipment, and further can transmit the target channel according to the target transmission parameter, thereby realizing the rapid reconfiguration of the channel configuration information after the TRP is changed and ensuring the continuity of the communication quality.

Optionally, with reference to fig. 2, as shown in fig. 3, before the step 201, the channel transmission method provided in the embodiment of the present invention may further include a step 206 described below.

And step 206, the network equipment determines the target information according to the first TRP.

Wherein the first TRP is a TRP which is determined by the network equipment and is used for providing service for the UE.

Compared with the existing TRP which is changed and reconfigured through RRC signaling (longer reconfiguration time), the channel transmission method provided by the embodiment of the invention indicates the target information to the UE through the MAC CE, determines the target transmission parameter from the channel configuration information set which is configured to the UE in advance by the network equipment, and further can transmit the target channel according to the target transmission parameter, thereby realizing the rapid reconfiguration of the channel configuration information after the TRP is changed and ensuring the continuity of the communication quality.

As shown in fig. 4, an embodiment of the present invention provides a UE 400. The UE 400 may include a determination module 401 and a transceiver module 402. The determining module 401 is configured to determine, according to the target information, a target transmission parameter corresponding to the target information from the channel configuration information set. The transceiver module 402 is configured to transmit or receive a target channel according to the target transmission parameter determined by the determining module 401.

Optionally, in this embodiment of the present invention, the channel configuration information set may include a plurality of channel configuration information, and a transmission parameter included in each channel configuration information corresponds to one TRP set.

Optionally, in this embodiment of the present invention, the channel configuration information set may include one channel configuration information, and a transmission parameter included in the one channel configuration information corresponds to all TRPs or part of TRPs in a cell in which the UE is located.

Optionally, in this embodiment of the present invention, when the set of channel configuration information includes a plurality of channel configuration information, the plurality of channel configuration information are in one bandwidth part BWP configuration information.

Optionally, in this embodiment of the present invention, when the set of channel configuration information includes a plurality of channel configuration information, the plurality of channel configuration information is within a plurality of BWP configuration information, and each BWP configuration information includes at least one channel configuration information of the plurality of channel configuration information.

Optionally, in this embodiment of the present invention, when the channel configuration information set includes a plurality of channel configuration information and the plurality of channel configuration information are in one BWP configuration information, the target information may be a target channel configuration information identifier or may be at least one target TRP identifier.

Optionally, in this embodiment of the present invention, it is assumed that the target information may be a target channel configuration information identifier or may be at least one target TRP identifier, and then the determining module 401 is specifically configured to determine, according to the target information, first channel configuration information corresponding to the target information from the multiple pieces of channel configuration information, and determine a transmission parameter in the first channel configuration information as a target transmission parameter.

Optionally, in this embodiment of the present invention, when the set of channel configuration information includes a plurality of channel configuration information, and the plurality of channel configuration information is in a plurality of BWP configuration information, the target information may be a target BWP identifier.

Optionally, in this embodiment of the present invention, assuming that the target information may be a target BWP identifier, the determining module 401 is specifically configured to determine, according to the target BWP identifier, at least one second channel configuration information corresponding to the target BWP identifier, and determine a transmission parameter in the at least one second channel configuration information as a target transmission parameter.

Optionally, in this embodiment of the present invention, when the channel configuration information set includes one piece of channel configuration information, the target information may include any one of the following items: at least one target TRP identity, at least one target parameter identity, at least one target transmission configuration identity TCI.

Optionally, in the embodiment of the present invention, it is assumed that the target information includes any one of the following items: at least one target TRP identifier, at least one target parameter identifier, and at least one target TCI, then the determining module 401 is specifically configured to determine, as the target transmission parameter, a transmission parameter corresponding to the target information in the transmission parameters included in the channel configuration information.

Optionally, in this embodiment of the present invention, the target information may be indicated to the UE by the network device through DCI or a CE of a MAC layer.

Optionally, in this embodiment of the present invention, the target channel may be any one of the following: a physical uplink control channel, a physical downlink control channel, a physical uplink shared channel, and a physical downlink shared channel.

It is understood that, in the embodiment of the present invention, the UE 400 may be the UE 01 in the communication system shown in fig. 1 in the foregoing embodiment.

The UE provided in the embodiment of the present invention can implement each process implemented by the UE in the foregoing method embodiments, and is not described here again to avoid repetition.

The embodiment of the invention provides a UE (user equipment), which can determine a target transmission parameter corresponding to target information from a channel configuration information set according to the target information; and according to the target transmission parameter, transmitting or receiving a target channel; wherein the target information is a TRP used by the network equipment for indicating to change to provide service for the UE; the set of channel configuration information is pre-configured for the UE by the network device before indicating the target information to the UE. Through the scheme, compared with the prior TRP which is changed and reconfigured through RRC signaling (longer reconfiguration time), the embodiment of the invention indicates the target information to the UE through the MAC CE, determines the target transmission parameter from the channel configuration information set which is configured to the UE in advance by the network equipment, and further can transmit the target channel according to the target transmission parameter, thereby realizing the rapid reconfiguration of the channel configuration information after the TRP is changed and ensuring the continuity of the communication quality.

As shown in fig. 5, an embodiment of the invention provides a network device 500. The network device 500 may include a transceiver module 501, where the transceiver module 501 is configured to indicate target information to a user equipment UE, where the target information is used to determine a target transmission parameter corresponding to the target information from a set of channel configuration information; and receiving or transmitting the target channel according to the target transmission parameter.

Optionally, in this embodiment of the present invention, when the channel configuration information set includes one piece of channel configuration information, the target information may include any one of the following items: at least one target TRP identity, at least one target parameter identity, at least one target transmission configuration TCI identity.

Optionally, in this embodiment of the present invention, the transceiver module 501 is specifically configured to indicate the target information to the UE through downlink control information DCI or a control unit CE of a media access control MAC layer.

Optionally, in this embodiment of the present invention, with reference to fig. 5, as shown in fig. 6, the network device 500 provided in this embodiment of the present invention may further include a determining module 502, where the determining module 502 is configured to determine the target information according to a first TRP before the transceiver module 501 indicates the target information to the UE, where the first TRP is a TRP determined by the network device to provide a service for the UE.

It is understood that, in the embodiment of the present invention, the network device 500 may be the network device 02 in the communication system shown in fig. 1 in the above embodiment.

The network device provided by the embodiment of the present invention can implement each process implemented by the network device entity in the above method embodiments, and is not described here again to avoid repetition.

The embodiment of the invention provides network equipment, which indicates target information to User Equipment (UE), wherein the target information is used for determining a target transmission parameter corresponding to the target information from a channel configuration information set; receiving or transmitting a target channel according to the target transmission parameter; wherein the target information is a TRP used by the network equipment for indicating to change to provide service for the UE; the set of channel configuration information is pre-configured for the UE by the network device before indicating the target information to the UE. Through the scheme, compared with the prior TRP which is changed and reconfigured through RRC signaling (longer reconfiguration time), the embodiment of the invention indicates the target information to the UE through the MAC CE, determines the target transmission parameter from the channel configuration information set which is configured to the UE in advance by the network equipment, and further can transmit the target channel according to the target transmission parameter, thereby realizing the rapid reconfiguration of the channel configuration information after the TRP is changed and ensuring the continuity of the communication quality.

Fig. 7 is a schematic diagram of a hardware structure of a UE implementing various embodiments of the present invention. As shown in fig. 7, the UE100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the UE structure shown in fig. 7 does not constitute a limitation of the UE, which may include more or fewer components than those shown, or combine certain components, or a different arrangement of components. In the embodiment of the present invention, the UE includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a wearable device, a pedometer, and the like.

The processor 110 is configured to determine, according to target information, a target transmission parameter corresponding to the target information from a channel configuration information set; a radio frequency unit 101, configured to transmit or receive a target channel according to the target transmission parameter determined by the processor 110; wherein the target information is a TRP used by the network equipment for indicating to change to provide service for the UE; the set of channel configuration information is pre-configured for the UE by the network device before indicating the target information to the UE.

The embodiment of the invention provides a UE (user equipment), which can determine a target transmission parameter corresponding to target information from a channel configuration information set according to the target information; and according to the target transmission parameter, transmitting or receiving a target channel; wherein the target information is a TRP used by the network equipment for indicating to change to provide service for the UE; the set of channel configuration information is pre-configured for the UE by the network device before indicating the target information to the UE. Compared with the prior TRP which is changed and reconfigured through RRC signaling (longer reconfiguration time), the embodiment of the invention indicates the target information to the UE through the MAC CE, determines the target transmission parameter from the channel configuration information set which is configured to the UE in advance by the network equipment, and further can transmit the target channel according to the target transmission parameter, thereby realizing the rapid reconfiguration of the channel configuration information after the TRP is changed and ensuring the continuity of the communication quality.

It is understood that, in the embodiment of the present invention, the UE100 may be the UE 01 in the communication system shown in fig. 1 in the foregoing embodiment.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.

The UE100 provides the user with wireless broadband internet access via the network module 102, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the UE100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is used to receive an audio or video signal. The input unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.

The UE100 also includes at least one sensor 105, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or backlight when the UE100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 106 is used to display information input by a user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the UE 100. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 7, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the UE, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the UE, and is not limited herein.

The interface unit 108 is an interface for connecting an external device to the UE 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the UE100 or may be used to transmit data between the UE100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the UE, connects various parts of the entire UE using various interfaces and lines, performs various functions of the UE and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the UE. Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The UE100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and optionally, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to implement functions of managing charging, discharging, and power consumption via the power management system. In addition, the UE100 includes some functional modules that are not shown, and are not described in detail herein.

Optionally, an embodiment of the present invention further provides a UE, which includes the processor 110 shown in fig. 7, a memory 109, and a computer program stored in the memory 109 and capable of being executed on the processor 110, where the computer program, when executed by the processor 110, implements the processes of the foregoing method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition.

Fig. 8 is a schematic diagram of a hardware structure of a network device according to an embodiment of the present invention. As shown in fig. 8, the network device 1200 may include: one or more processors 1201, memory 1202, transceiver 1203, and bus 1204. In an embodiment of the invention, the one or more processors 1201, memory 1202, and transceiver 1203 may be interconnected. The one or more processors 1201 may be a baseband unit (BBU), which may also be referred to as an indoor baseband processing unit; the transceiver 1203 may be a Remote Radio Unit (RRU), which may also be referred to as a remote transmission unit. In addition, the network device 1200 may further include some functional modules that are not shown, and are not described herein again.

It is understood that, in the embodiment of the present invention, the network device 1200 may be the network device 02 in the communication system shown in fig. 1 in the above embodiment.

Optionally, an embodiment of the present invention further provides a network device, which includes the processor 1201 shown in fig. 8, a memory 1202, and a computer program stored in the memory 1202 and capable of running on the processor 1201, where the computer program, when executed by the processor 1201, implements each process of the foregoing method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 110 shown in fig. 7 or the processor 1201 shown in fig. 8, the computer program implements the processes of the method embodiment, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method described in the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A channel transmission method is applied to User Equipment (UE), and comprises the following steps:

determining a target transmission parameter corresponding to target information from a channel configuration information set according to the target information;

and transmitting or receiving a target channel according to the target transmission parameters.

2. The method of claim 1, wherein the set of channel configuration information comprises a plurality of channel configuration information, each channel configuration information comprising transmission parameters corresponding to one set of TRPs;

or,

the channel configuration information set comprises one piece of channel configuration information, and the transmission parameters included in the one piece of channel configuration information correspond to all TRPs or part of TRPs in the cell where the UE is located.

3. The method according to claim 2, wherein in case the set of channel configuration information comprises a plurality of channel configuration information, the plurality of channel configuration information is within one bandwidth part BWP configuration information;

or,

in a case where the set of channel configuration information includes a plurality of channel configuration information, the plurality of channel configuration information is within a plurality of BWP configuration information, and each BWP configuration information includes at least one channel configuration information of the plurality of channel configuration information.

4. The method of claim 3, wherein in case that the set of channel configuration information includes a plurality of channel configuration information and the plurality of channel configuration information is within one BWP configuration information, the target information is a target channel configuration information ID or at least one target TRP ID;

or,

in the case that the set of channel configuration information includes a plurality of channel configuration information and the plurality of channel configuration information is within a plurality of BWP configuration information, the target information is a target BWP identification;

or,

in a case that the set of channel configuration information includes one channel configuration information, the target information includes any one of: at least one target TRP identity, at least one target parameter identity, at least one target transmission configuration identity TCI.

5. The method of claim 4, wherein the target information is a target channel configuration information identity or at least one target TRP identity;

the determining, according to the target information, a target transmission parameter corresponding to the target information from a channel configuration information set includes:

according to the target information, determining first channel configuration information corresponding to the target information from the plurality of channel configuration information;

and determining the transmission parameters in the first channel configuration information as the target transmission parameters.

6. The method of claim 4, wherein the target information is a target BWP identification;

determining at least one second channel configuration information corresponding to the target BWP identification according to the target BWP identification;

determining the transmission parameter in the at least one second channel configuration information as the target transmission parameter.

7. The method of claim 4, wherein the target information comprises any one of: at least one target TRP identity, at least one target parameter identity, at least one target TCI;

and determining the transmission parameter corresponding to the target information in the transmission parameters included in the channel configuration information as the target transmission parameter.

8. The method of claim 1, wherein the target information is indicated to the UE by the network device through downlink control information DCI or a control element CE of a media access control MAC layer.

9. The method of claim 1, wherein the target channel is any one of: a physical uplink control channel, a physical downlink control channel, a physical uplink shared channel, and a physical downlink shared channel.

10. A channel transmission method applied to a network device, the method comprising:

indicating target information to User Equipment (UE), wherein the target information is used for determining a target transmission parameter corresponding to the target information from a channel configuration information set;

and receiving or sending a target channel according to the target transmission parameters.

11. The method of claim 10, wherein the set of channel configuration information comprises a plurality of channel configuration information, each channel configuration information comprising transmission parameters corresponding to one set of TRPs;

or,

12. The method according to claim 11, wherein in case that the set of channel configuration information comprises a plurality of channel configuration information, the plurality of channel configuration information is within one bandwidth part BWP configuration information;

or,

13. The method according to claim 12, wherein in case that the set of channel configuration information includes a plurality of channel configuration information and the plurality of channel configuration information is within one BWP configuration information, the target information is a target channel configuration information identity or at least one target TRP identity;

or,

in a case that the set of channel configuration information includes one channel configuration information, the target information includes any one of: at least one target TRP identity, at least one target parameter identity, at least one target transmission configuration TCI identity.

14. The method of claim 10, wherein the indicating the target information to the UE comprises:

and indicating the target information to the UE through Downlink Control Information (DCI) or a control unit (CE) of a Media Access Control (MAC) layer.

15. The method of claim 10, wherein prior to indicating the target information to the UE, the method further comprises:

and determining the target information according to a first TRP, wherein the first TRP is the TRP which is determined by the network equipment and provides service for the UE.

16. The method of claim 10, wherein the target channel is any one of: a physical uplink control channel, a physical downlink control channel, a physical uplink shared channel, and a physical downlink shared channel.

17. A User Equipment (UE), characterized in that, the UE comprises a determining module and a transceiver module;

the determining module is used for determining a target transmission parameter corresponding to the target information from a channel configuration information set according to the target information;

the transceiver module is configured to send or receive a target channel according to the target transmission parameter determined by the determining module.

18. The UE of claim 17, wherein the set of channel configuration information comprises a plurality of channel configuration information, each channel configuration information comprising transmission parameters corresponding to one set of TRPs;

or,

19. The UE of claim 18, wherein in case the set of channel configuration information comprises a plurality of channel configuration information, the plurality of channel configuration information is within one bandwidth part BWP configuration information;

or,

20. The UE of claim 19, wherein in case that the set of channel configuration information includes a plurality of channel configuration information and the plurality of channel configuration information is within one BWP configuration information, the target information is a target channel configuration information identity or at least one target TRP identity;

or,

21. The UE of claim 20, wherein the target information is a target channel configuration information identity or at least one target TRP identity;

the determining module is specifically configured to determine, according to the target information, first channel configuration information corresponding to the target information from the multiple pieces of channel configuration information; and determining the transmission parameter in the first channel configuration information as the target transmission parameter.

22. The UE of claim 20, wherein the target information is a target BWP identity;

the determining module is specifically configured to determine, according to the target BWP identifier, at least one piece of second channel configuration information corresponding to the target BWP identifier; and determining the transmission parameter in the at least one second channel configuration information as the target transmission parameter.

23. The UE of claim 20, wherein the target information comprises any one of: at least one target TRP identity, at least one target parameter identity, at least one target TCI;

the determining module is specifically configured to determine, as the target transmission parameter, a transmission parameter corresponding to the target information in the transmission parameters included in the one piece of channel configuration information.

24. The UE of claim 17, wherein the target information is indicated to the UE by a network device through downlink control information DCI or a control element CE of a media access control MAC layer.

25. The UE of claim 17, wherein the target channel is any one of: a physical uplink control channel, a physical downlink control channel, a physical uplink shared channel, and a physical downlink shared channel.

26. Network equipment, characterized in that the network equipment comprises a transceiver module, wherein the transceiver module is used for indicating target information to User Equipment (UE), and the target information is used for determining target transmission parameters corresponding to the target information from a channel configuration information set; and receiving or transmitting a target channel according to the target transmission parameter.

27. The network device of claim 26, wherein the set of channel configuration information comprises a plurality of channel configuration information, each channel configuration information comprising transmission parameters corresponding to one set of TRPs;

or,

28. The network device of claim 27, wherein in case that the set of channel configuration information comprises a plurality of channel configuration information, the plurality of channel configuration information is within one bandwidth part BWP configuration information;

or,

29. The network device of claim 28, wherein in case that the set of channel configuration information includes a plurality of channel configuration information and the plurality of channel configuration information is within one BWP configuration information, the target information is a target channel configuration information identity or at least one target TRP identity;

or,

30. The network device according to claim 26, wherein the transceiver module is specifically configured to indicate the target information to the UE through downlink control information DCI or a control element CE of a media access control MAC layer.

31. The network device of claim 26, further comprising a determining module configured to determine the target information based on a first TRP before the transceiver module indicates the target information to the UE, wherein the first TRP is a TRP determined by the network device to provide a service to the UE.

32. The network device of claim 26, wherein the target channel is any one of: a physical uplink control channel, a physical downlink control channel, a physical uplink shared channel, and a physical downlink shared channel.

33. A user equipment, UE, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the channel transmission method according to any of claims 1 to 9.

34. A network device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the channel transmission method according to any one of claims 10 to 16.

35. A communication system, characterized in that the communication system comprises a user equipment, UE, according to any of claims 17 to 25, and a network device according to any of claims 26 to 32; or,

the communication system comprises the UE of claim 33, and the network device of claim 34.