CN115189832A

CN115189832A - Control channel transmission method, device, terminal and network side equipment

Info

Publication number: CN115189832A
Application number: CN202110362363.XA
Authority: CN
Inventors: 苏昕; 宋磊; 高秋彬
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-10-14
Anticipated expiration: 2041-04-02
Also published as: CN115189832B

Abstract

The invention provides a control channel transmission method, a control channel transmission device, a terminal and network side equipment. The method comprises the following steps: a terminal acquires relevant configuration information of single transmission and/or repeated transmission of a candidate physical downlink control channel PDCCH; and the terminal determines the transmission mode and/or the decoding mode of the candidate PDCCH according to the relevant configuration information. According to the embodiment of the invention, the terminal acquires the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission, and determines the transmission mode and/or decoding mode of the candidate PDCCH according to the relevant configuration information, so that the corresponding transmission or detection is carried out on the candidate PDCCHs with different functions, the method and the device are suitable for dynamic switching between single transmission and repeated transmission of the PDCCH, the transmission performance of the terminal can be improved, and the scheduling flexibility of network side equipment is increased.

Description

Control channel transmission method, device, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a control channel transmission method, apparatus, terminal, and network side device.

Background

In a New Radio (NR) system, when a Physical Downlink Control Channel (PDCCH)/Downlink Control Information (DCI) is transmitted repeatedly, 2 or more Transmission points (TRPs) may transmit the same DCI signaling, and a terminal may detect the DCI signaling transmitted by a network device in an independent decoding or soft combining decoding manner. Currently, in the related art, there is a lack of a transmission method that can be applied to dynamic switching between single transmission and repeated transmission of a PDCCH.

Disclosure of Invention

The invention aims to provide a control channel transmission method, a control channel transmission device, a control channel transmission terminal and network side equipment, which can realize dynamic switching between single transmission and repeated transmission of a PDCCH (physical downlink control channel).

An embodiment of the present invention provides a control channel transmission method, including:

a terminal acquires relevant configuration information of single transmission and/or repeated transmission of a candidate physical downlink control channel PDCCH;

and the terminal determines the transmission mode and/or the decoding mode of the candidate PDCCH according to the relevant configuration information.

Optionally, the obtaining of the configuration information about single transmission and/or repeated transmission of the candidate PDCCH includes:

receiving related configuration information of single transmission and/or repeated transmission of the candidate PDCCH sent by the network side equipment; and/or

And determining the configuration information related to single transmission and/or repeated transmission of the candidate PDCCH according to the parameters of a Search Space set (SS set).

Optionally, the determining, according to the relevant configuration information, a transmission mode and/or a decoding mode of the candidate PDCCH includes:

determining a transmission mode and/or a decoding mode of the candidate PDCCH according to the relevant configuration information and a predefined rule;

wherein the predefined rule indicates that: the aggregation level AL is the same in value and candidate PDCCHs with the same candidate PDCCH index are associated.

Optionally, the relevant configuration information comprises at least one of:

candidate PDCCHs corresponding to a first AL in the first search space set are used for target transmission;

candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set are used for target transmission;

candidate PDCCHs contained in a first candidate PDCCH set in the first search space set are used for target transmission;

candidate PDCCHs contained in a first MO in the first search space set are used for target transmission;

wherein the target transmission comprises a PDCCH single transmission or a PDCCH repeated transmission, and the first search space set is one of at least two associated search space sets.

Optionally, the relevant configuration information comprises at least one of:

the numerical part of AL is the same between different sets of search spaces;

the values of AL between different search space sets are all the same, and the number of candidate PDCCHs corresponding to at least one value of AL in the first search space set is different from the number of candidate PDCCHs corresponding to the value of AL in the second search space set;

the first search space set is one of at least two associated search space sets, and the second search space set is another search space set except the first search space set in the at least two associated search space sets.

Optionally, the determining, according to the relevant configuration information, a transmission mode of the candidate PDCCH includes:

if the relevant configuration information comprises: if a PDCCH candidate corresponding to a first AL in the first search space set is used for PDCCH single transmission, a transmission mode of the PDCCH candidate includes one of the following:

all candidate PDCCHs corresponding to a first AL in the first search space set are used for PDCCH single transmission;

a first part of candidate PDCCHs corresponding to a first AL in the first search space set are used for PDCCH single transmission, and the first part of candidate PDCCHs are candidate PDCCHs with index values larger than the maximum index value corresponding to the first AL in a second search space set;

and the second part of candidate PDCCHs corresponding to the first AL in the first search space set are used for PDCCH repeated transmission, all candidate PDCCHs corresponding to other AL except the first AL are used for PDCCH repeated transmission, and the second part of candidate PDCCHs are candidate PDCCHs with index values smaller than or equal to the maximum index value corresponding to the first AL in the second search space set.

if the relevant configuration information comprises: if the PDCCH candidate corresponding to the first candidate PDCCH index in the first search space set is used for PDCCH single transmission, the transmission mode of the PDCCH candidate includes one of:

all candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set are used for PDCCH single transmission;

a third part of candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set are used for PDCCH single transmission, and the third part of candidate PDCCHs are candidate PDCCHs which are different from the candidate PDCCHs of the second search space set in AL and different from the candidate PDCCH index;

and the fourth part of candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set are used for PDCCH single transmission, the candidate PDCCHs corresponding to other indexes except the first candidate PDCCH index are used for PDCCH repeated transmission, and the fourth part of candidate PDCCHs are candidate PDCCHs which have the same AL and the same candidate PDCCH index as the candidate PDCCHs of the second search space set.

if the relevant configuration information comprises: if a PDCCH candidate included in a first candidate PDCCH set in the first search space set is used for PDCCH single transmission, a transmission mode of the PDCCH candidate includes one of:

all candidate PDCCHs corresponding to a first candidate PDCCH set in the first search space set are used for PDCCH single transmission;

a fifth part of candidate PDCCHs corresponding to a first candidate PDCCH set in the first search space set are used for PDCCH single transmission, and the fifth part of candidate PDCCHs are candidate PDCCHs which are different from the candidate PDCCHs of a second search space set in AL and different from the candidate PDCCH indexes;

and the sixth part of candidate PDCCHs corresponding to the first candidate PDCCH set in the first search space set are used for PDCCH repeated transmission, the candidate PDCCHs corresponding to other candidate PDCCH sets except the first candidate PDCCH set are used for PDCCH repeated transmission, and the sixth part of candidate PDCCHs are candidate PDCCHs which have the same AL and have the same candidate PDCCH index as the candidate PDCCHs of the second search space set.

determining, in a case that the target transmission comprises a repeated transmission, a resource of the candidate PDCCHs having an associated candidate PDCCH for a PDCCH repeated transmission; and/or the presence of a gas in the gas,

determining resources of unassociated candidate PDCCHs among the candidate PDCCHs for PDCCH single transmission.

if the relevant configuration information comprises: if the values of AL in different search space sets are partially the same, the transmission mode of the candidate PDCCH includes one of:

in at least two search space sets, candidate PDCCHs with the same AL value and the same candidate PDCCH index are used for PDCCH repeated transmission, and the rest candidate PDCCHs in the at least two search space sets are used for PDCCH single transmission;

the candidate PDCCH corresponding to a second AL value of the first search space set is used for PDCCH single transmission, and the second AL value is an AL value different from that of the second search space set in the first search space set;

in the first search space set, the candidate PDCCHs corresponding to the same AL value as the second search space set are used for PDCCH repeated transmission.

if the relevant configuration information comprises: the values of AL in different search space sets are the same, and the number of candidate PDCCHs corresponding to at least one AL value in the first search space set is different from the number of candidate PDCCHs corresponding to the AL value in the second search space set, so that the transmission method of the candidate PDCCHs includes one of:

in at least two search space sets, using candidate PDCCHs with the same AL value and the same candidate PDCCH index for PDCCH repeated transmission, and using the rest candidate PDCCHs in the at least two search space sets for PDCCH single transmission;

a candidate PDCCH corresponding to a third AL value of the first search space set is used for PDCCH single transmission, and the third AL value is an AL value different from that of the second search space in the first search space set;

in the first search space set, candidate PDCCHs having the same AL value and the same candidate PDCCH index as the second search space set are used for PDCCH repeated transmission.

Optionally, the determining, according to the relevant configuration information, a decoding manner of the PDCCH candidate includes:

determining a transmission mode of the candidate PDCCH according to the relevant configuration information and a predefined rule;

and determining the decoding mode of the candidate PDCCH according to the transmission mode of the candidate PDCCH.

Optionally, the determining, according to the transmission mode of the PDCCH candidate, a decoding mode of the PDCCH includes:

determining a decoding mode of the candidate PDCCH used for single transmission as an independent decoding mode;

determining a decoding manner of the candidate PDCCH for repeated transmission includes: one of a first decoding mode, a predefined second decoding mode and an independent decoding mode configured by the network side equipment.

and the network side equipment configures the PDCCH to carry out single transmission and/or repeated transmission related configuration information.

Optionally, the configuration information for configuring the PDCCH for single transmission and/or repeated transmission includes:

sending related configuration information of single transmission and/or repeated transmission of the PDCCH to a terminal; and/or

Parameters of a set of search spaces are configured.

Optionally, the relevant configuration information comprises at least one of:

the numerical part of AL is the same between different sets of search spaces;

An embodiment of the present invention provides a terminal, including: memory, transceiver, processor:

a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations:

acquiring relevant configuration information of single transmission and/or repeated transmission of a candidate physical downlink control channel PDCCH;

and determining the transmission mode and/or the decoding mode of the candidate PDCCH according to the related configuration information.

And determining the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission according to the parameters of the search space set.

Optionally, the relevant configuration information comprises at least one of:

candidate PDCCHs corresponding to the first AL in the first search space set are used for target transmission;

Optionally, the relevant configuration information comprises at least one of:

the numerical part of AL is the same between different sets of search spaces;

and a second part of candidate PDCCHs corresponding to the first AL in the first search space set are used for PDCCH repeated transmission, all candidate PDCCHs corresponding to other ALs except the first AL are used for PDCCH repeated transmission, and the second part of candidate PDCCHs are candidate PDCCHs with index values smaller than or equal to the maximum index value corresponding to the first AL in the second search space set.

and a fourth part of candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set are used for PDCCH single transmission, the candidate PDCCHs corresponding to the indexes except the first candidate PDCCH index are used for PDCCH repeated transmission, and the fourth part of candidate PDCCHs are candidate PDCCHs which have the same AL and the same candidate PDCCH index as the candidate PDCCHs of the second search space set.

if the relevant configuration information comprises: if a PDCCH candidate included in a first PDCCH candidate set in the first search space set is used for PDCCH single transmission, the transmission mode of the PDCCH candidate includes one of the following:

determining, in a case that the target transmission comprises a repeated transmission, a resource of the candidate PDCCHs having an associated candidate PDCCH for a PDCCH repeated transmission; and/or the presence of a gas in the atmosphere,

if the relevant configuration information comprises: if the values of AL in different search space sets are partially the same, the transmission mode of the PDCCH candidate includes one of:

and in the first search space set, the candidate PDCCHs corresponding to the same AL value as that of the second search space set are used for PDCCH repeated transmission.

if the relevant configuration information comprises: the values of AL in different search space sets are the same, and the number of candidate PDCCHs corresponding to at least one AL value in the first search space set is different from the number of candidate PDCCHs corresponding to the AL value in the second search space set, the transmission mode of the candidate PDCCHs includes one of:

in the first search space set, candidate PDCCHs with the same AL value and the same candidate PDCCH index as the second search space set are used for PDCCH repeated transmission.

Optionally, the determining a decoding method of the PDCCH according to the transmission method of the candidate PDCCH includes:

determining a decoding mode of the candidate PDCCH for single transmission as an independent decoding mode;

determining a decoding manner of the candidate PDCCH for repeated transmission includes: one of a first decoding method, a predefined second decoding method and an independent decoding method configured by the network side device.

An embodiment of the present invention provides a network side device, including: memory, transceiver, processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following:

and configuring related configuration information of the PDCCH for single transmission and/or repeated transmission.

sending related configuration information of single transmission and/or repeated transmission of a PDCCH to a terminal; and/or

Parameters of a set of search spaces are configured.

Optionally, the relevant configuration information comprises at least one of:

the numerical value of AL is partially the same between different search space sets;

An embodiment of the present invention provides a control channel transmission apparatus, including:

a first obtaining unit, configured to obtain configuration information related to single transmission and/or repeated transmission of a candidate physical downlink control channel PDCCH;

a first determining unit, configured to determine, by the terminal, a transmission mode and/or a decoding mode of the PDCCH candidate according to the relevant configuration information.

and the configuration unit is used for configuring the PDCCH for the relevant configuration information of single transmission and/or repeated transmission.

An embodiment of the invention provides a processor readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the control channel transmission method as described above.

The technical scheme of the invention has the beneficial effects that:

according to the embodiment of the invention, the terminal acquires the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission, and determines the transmission mode and/or decoding mode of the candidate PDCCH according to the relevant configuration information, so that corresponding transmission or detection is carried out on the candidate PDCCHs with different functions, the method and the device are suitable for dynamic switching between single transmission and repeated transmission of the PDCCH, the transmission performance of the terminal can be improved, and the scheduling flexibility of network side equipment is increased.

Drawings

Fig. 1 is a flowchart illustrating a control channel transmission method according to an embodiment of the present invention;

FIG. 2 is a second flowchart illustrating a control channel transmission method according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a control channel transmission apparatus according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of a control channel transmission apparatus according to an embodiment of the present invention;

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

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

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. It will therefore be apparent to those skilled in the art that various changes and modifications can be made in the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic of the process, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

The term "and/or" in the embodiments of the present invention describes an association relationship of associated objects, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. 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 application.

In describing embodiments of the present invention, some concepts will first be explained.

In the NR system, when multiple TRPs are used to transmit a Physical Downlink Shared Channel (PDSCH), dynamic switching between single TRP transmission and multiple TRP transmission (that is, one TRP may be transmitted in a certain time slot or a certain symbol, or multiple TRPs may be transmitted) may be supported, so as to increase the flexibility of base station scheduling.

When a plurality of TRPs jointly transmit one DCI, whether a single TRP or a plurality of TRPs transmits a PDSCH may be determined by the number of TCIs in a Transmission Configuration Indication (TCI) field in the DCI. If one TCI status is indicated in the DCI, single TRP transmission is indicated, and if a pair of TCI statuses (i.e., 2 TCI statuses) is indicated in the DCI, multi TRP transmission is indicated.

When a plurality of TRPs independently send DCI for independent scheduling, the UE can detect 2 DCI-scheduled PDSCHs at most in one time slot, so that the UE can determine single-TRP transmission or multi-TRP transmission according to the DCI number of the scheduled PDSCHs in one time slot.

Through the dynamic switching of single TRP and multi-TRP transmission, the network side equipment can select a transmission method suitable for the transmission quality of the current channel or suitable for the transmission requirement of the current service.

Specifically, embodiments of the present invention provide a control channel transmission method, apparatus, and processor-readable storage medium, which can implement dynamic switching between single transmission and repeated transmission of a PDCCH.

As shown in fig. 1, an embodiment of the present invention provides a control channel transmission method, which specifically includes the following steps:

step 101: the terminal acquires the relevant configuration information of single transmission and/or repeated transmission of the candidate physical downlink control channel PDCCH.

The terminal may obtain, according to the information configured by the network side device, the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission, for example: the network side equipment directly sends the relevant indication information to the terminal, or the network side equipment determines the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission according to the configuration parameters of the search space set by configuring the parameters of the search space set.

The related configuration information is used for implicitly or explicitly indicating that the PDCCH performs single transmission and/or repeated transmission.

Step 102: and the terminal determines the transmission mode and/or the decoding mode of the candidate PDCCH according to the relevant configuration information.

The terminal acquires the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission, and determines the transmission mode and/or decoding mode of the candidate PDCCH by combining a predefined rule based on the relevant configuration information, so that corresponding PDCCH transmission can be performed according to the transmission mode of the candidate PDCCH, or a corresponding decoding mode is adopted to detect the candidate PDCCH.

According to the embodiment of the invention, the terminal acquires the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission, and determines the transmission mode and/or decoding mode of the candidate PDCCH according to the relevant configuration information, so that the corresponding transmission or detection is carried out on the candidate PDCCHs with different functions, the method and the device are suitable for dynamic switching between single transmission and repeated transmission of the PDCCH, the transmission performance of the terminal can be improved, and the scheduling flexibility of network side equipment is increased.

Optionally, the network side device may configure a search space set, where the search space set includes: a plurality of candidate resources for PDCCH. The terminal determines the search space set before acquiring the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission; and the terminal determines candidate PDCCH resources which can be used for single transmission and/or candidate PDCCH resources which can be used for repeated transmission in the search space set according to the related configuration information, so that a corresponding candidate PDCCH transmission mode and/or a corresponding decoding mode is determined according to the resources occupied by the candidate PDCCH.

Further, the obtaining of the configuration information related to single transmission and/or repeated transmission of the candidate PDCCH may include:

receiving related configuration information of single transmission and/or repeated transmission of candidate PDCCHs sent by network side equipment; and/or

The network side device may directly send the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission to the terminal, may send the relevant configuration information through a separate signaling, or may send the relevant configuration information together with the configuration information of the search space set, or may be carried in the configuration information of the search space set. The terminal may determine the transmission mode and/or the decoding mode according to the relevant configuration information after receiving the relevant configuration information. In the relevant configuration information sent by the network side device, it may directly indicate whether the candidate PGCCH is used for single transmission or for repeated transmission, or implicitly indicate with other relevant configuration information (for example, relevant configuration parameters of the search space set).

The network side device may also implicitly indicate, by configuring a parameter of the search space set (i.e., configuration information of the search space set), relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission. And the terminal determines different transmission modes and/or decoding modes of the candidate PDCCHs corresponding to different search space configurations according to the parameters of the search space set. As an optional embodiment, the determining, according to the relevant configuration information, a transmission scheme and/or a decoding scheme of the PDCCH candidate includes:

determining a transmission mode and/or a decoding mode of the candidate PDCCH according to the relevant configuration information and a predefined rule; wherein the predefined rule indicates that: the aggregation level AL is the same in value and candidate PDCCHs with the same candidate PDCCH index are associated.

Optionally, after determining the Transmission mode of the PDCCH, the terminal may further determine a Transmission Configuration Indication (TCI) state (i.e., beam information) of the PDCCH. For example, when the terminal determines that the PDCCH employs a single transmission on a certain PDCCH candidate, the terminal employs a TCI state on the PDCCH candidate to receive the PDCCH; when the terminal determines that the PDCCH employs repeated transmission on a certain PDCCH candidate, the terminal employs two TCI states on the PDCCH candidate to receive the PDCCH.

The terminal acquires the relevant configuration information, and may determine, in combination with the predefined rule, an actual transmission mode of the candidate PDCCH, for example: according to the predefined rule, determining the associated PDCCH candidates, and determining the PDCCH candidates for PDCCH repeated transmission (for example, the associated PDCCH candidates) or determining the PDCCH candidates for PDCCH single transmission (for example, other independent PDCCH candidates except the associated PDCCH candidates) in combination with the related configuration information.

Specifically, the relevant configuration information may include at least one of the following (a) to (D):

(A) The candidate PDCCH corresponding to the first AL in the first set of search spaces is used for target transmission. Wherein the target transmission comprises a PDCCH single transmission or a PDCCH repeated transmission.

For example: the network side device configures 2 SS sets (a first SS set and a second SS set) of the terminal to be associated, that is, the 2 SS sets can be used for repeated transmission of the same PDCCH, for example, the network side device sends the PDCCH once in the first SS set and sends the same PDCCH in the second SS set.

In order to determine two PDCCH candidates for repeated transmission of the same PDCCH, a predefined rule may be set, e.g., 2 PDCCH candidates having the same AL value and the same PDCCH candidate index among 2 SS sets are associated, i.e., for repeated transmission of the same PDCCH.

To support dynamic switching between PDCCH single transmissions (which may be single TRP transmissions, for example) and PDCCH repeated transmissions (which may be multiple TRP transmissions, or repeated transmissions of a single TRP, for example). The network side device may explicitly configure that there are PDCCH candidates for a PDCCH single transmission within 2 SS sets.

It should be noted that, in all embodiments of the present invention, the candidate PDCCH for PDCCH single transmission in the first SS set is taken as an example for description, and the used method may be extended to the second SS set. For example, one case is that a first SS set is used only for PDCCH repetition transmission, and a second SS set can be used for both PDCCH repetition transmission and PDCCH single transmission; in another case, both the first SS set and the second SS set may be used for PDCCH repeat transmission and PDCCH single transmission, in which case the determination method of the PDCCH candidate transmission scheme in the second SS set is consistent with the first SS set. Within one slot or duration (span), there may be multiple sets of associated SS sets, e.g., SS set 1 and SS set 2 association, SS set 3 and SS set 4 association, and the terminal may determine the transmission scheme of its candidate PDCCH resource separately for each pair of associated SS sets according to an embodiment of the present invention. In addition, in all embodiments of the present invention, the 2 associated SS sets may be 2 SS sets in the same time slot, or may be 2 SS sets in different time slots, for example, the SS sets of 2 different time slots when the inter-slot PDCCH is used for repeated transmission, which is not limited in the embodiments of the present invention.

Since the network side device has configured the first SS set and the second SS set to be associated, which can be used for PDCCH repeated transmission, when the first SS set can also be used for PDCCH single transmission, one method is to explicitly configure PDCCH candidates for PDCCH single transmission in the first SS set, and then the remaining PDCCH candidates can be used for PDCCH repeated transmission; alternatively, candidate PDCCHs that can be used for PDCCH repeated transmission in the first SS set are configured, and the remaining candidate PDCCHs can be used for PDCCH single transmission. In this embodiment, a first way is taken as an example to explain, that is, the network side device explicitly configures candidate PDCCHs that can be used for a single transmission of a PDCCH in the first SS set.

As an optional embodiment, the determining, according to the relevant configuration information, a transmission manner of the PDCCH candidate includes:

if the relevant configuration information comprises: if the candidate PDCCH corresponding to the first AL in the first search space set is used for single PDCCH transmission, the transmission mode of the candidate PDCCH includes one of the following:

a1: and all candidate PDCCHs corresponding to the first AL in the first search space set are used for PDCCH single transmission.

To save signaling overhead on the network device side, a class of candidate PDCCHs may be configured for a single transmission. For example, the network side device configures that the first AL in the first SS set can be used for PDCCH single transmission. The above configuration may be configured in the higher layer parameter (Search Space) or outside the higher layer parameter (Search Space) of the first SS set. The first AL represents at least one AL value, e.g., AL =2 and AL =8, that may be used for a PDCCH single transmission. The terminal may determine that all PDCCH candidates of AL =2 and AL =8 in the first SS set may be used for PDCCH single transmission; the terminal may also determine that partial PDCCH candidates may be used for both PDCCH repetition transmission and PDCCH single transmission if AL =2 or AL =8 is also configured in the first SS set. For a specific part of candidate PDCCH may be used for repeated transmission, and which part of candidate PDCCH may be used for single transmission, which may be further indicated by dynamic signaling.

a2: and a first part of candidate PDCCHs corresponding to the first AL in the first search space set are used for PDCCH single transmission, and the first part of candidate PDCCHs are candidate PDCCHs with index values larger than the maximum index value corresponding to the first AL in the second search space set.

The terminal may determine, according to a rule configured or predefined by the network side device, that a part of candidate PDCCHs corresponding to the first AL in the first SS set (i.e., the first part of candidate PDCCHs) may be used for PDCCH single transmission, where the part of candidate PDCCHs is a candidate PDCCH whose index value is greater than the maximum index value corresponding to the first AL in the second SS set. For example, if the PDCCH candidate index corresponding to AL =2 in the second SS set is 3, the terminal may determine that PDCCH candidates corresponding to AL =2 in the first SS set are respectively associated with PDCCH candidates corresponding to AL =2 in the second SS set and are used for PDCCH repeated transmission; candidate PDCCHs with an index greater than 3 corresponding to AL =2 in the first SS set may be used for PDCCH single transmission.

a3: and a second part of candidate PDCCHs corresponding to the first AL in the first search space set are used for PDCCH repeated transmission, all candidate PDCCHs corresponding to other ALs except the first AL are used for PDCCH repeated transmission, and the second part of candidate PDCCHs are candidate PDCCHs with index values smaller than or equal to the maximum index value corresponding to the first AL in the second search space set.

The terminal may determine that a part of candidate PDCCHs corresponding to a first AL (i.e., the second part of candidate PDCCHs) in the first SS set may be used for PDCCH repetition transmission, and all candidate PDCCHs corresponding to the remaining ALs (e.g., including the second AL and the third AL) except the first AL are used for PDCCH repetition transmission. The partial candidate PDCCHs are candidate PDCCHs with index values smaller than or equal to the maximum index value corresponding to the first AL in the second SS set.

It should be noted that the network side device may further configure that the first AL in the first SS set may only be used for PDCCH single transmission, and the terminal may determine that all candidate PDCCHs corresponding to the first AL in the first SS set may be used for PDCCH single transmission and are only used for PDCCH single transmission.

(B) Candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set are used for target transmission. Wherein the target transmission comprises a PDCCH single transmission or a PDCCH repeated transmission.

To save signaling overhead for the network side device, one type of candidate PDCCH may be configured for a single transmission. For example, the network side device configures a first candidate PDCCH index (including one or more index values) in a first SS set to be used for PDCCH single transmission. The above configuration may be configured in or out of the higher layer parameters of the first SS set.

Specifically, the determining, according to the relevant configuration information, a transmission manner of the PDCCH candidate may include:

if the relevant configuration information comprises: if a PDCCH candidate corresponding to a first PDCCH candidate index in the first search space set is used for PDCCH single transmission, the transmission mode of the PDCCH candidate includes one of the following:

b1, all candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set are used for PDCCH single transmission.

The first candidate PDCCH index represents the index values, e.g., 3 and 5, of one or more candidate PDCCHs. The terminal may determine that all PDCCH candidates with PDCCH candidate index values of 3 and 5 in the first SS set may be used for PDCCH single transmission; if candidate PDCCHs with candidate PDCCH index values of 3 and 5 are also configured in the second SS set and have the same AL as the candidate PDCCHs with candidate PDCCH indexes of 3 or 5 in the first SS set, the terminal can also determine that the part of candidate PDCCHs can be used for both PDCCH repeated transmission and PDCCH single transmission. For a specific part of the candidate PDCCH may be used for repeated transmission, and which part of the candidate PDCCH may be used for single transmission, which may be further indicated by dynamic signaling.

And b2, using a third part of candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set for PDCCH single transmission, wherein the third part of candidate PDCCHs are candidate PDCCHs which have different AL and different candidate PDCCH indexes from those of the candidate PDCCHs of the second search space set.

The first candidate PDCCH index represents the index values, e.g., 3 and 5, of one or more candidate PDCCHs. The terminal may determine, according to a configuration of the network-side device or a predefined rule, that a part of candidate PDCCHs (i.e., the third part of candidate PDCCHs) in candidate PDCCHs with a candidate PDCCH index of 3 or 5 in the first SS set may be used for PDCCH single transmission, where the part of candidate PDCCHs is a candidate PDCCH that does not have the same AL and does not have the same candidate PDCCH index as a candidate PDCCH of the second SS set.

And b3, using the fourth part of candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set for PDCCH single transmission, using the candidate PDCCHs corresponding to other indexes except the first candidate PDCCH index for PDCCH repeated transmission, wherein the fourth part of candidate PDCCHs are candidate PDCCHs which have the same AL and the same candidate PDCCH index as the candidate PDCCHs of the second search space set.

The first candidate PDCCH index represents the index values, e.g., 3 and 5, of one or more candidate PDCCHs. The terminal may determine that, of the candidate PDCCHs with candidate PDCCH indices of 3 or 5 in the first SS set (i.e., the fourth part of candidate PDCCHs), a part of candidate PDCCHs that have the same AL and have the same candidate PDCCH index as the candidate PDCCHs of the second SS set may be used for PDCCH single transmission, and may determine that, of the candidate PDCCHs with candidate PDCCH indices of 3 and 5 in the first SS set, candidate PDCCHs with index values (e.g., 0,1,2,4, etc.) other than those of 3 and 5 are all used for PDCCH repeated transmission.

The network side device may also configure that a first candidate PDCCH index (including one or more index values) in the first SS set may be used only for PDCCH single transmission, and the terminal may determine that all candidate PDCCHs in the first SS set with the index value as the first candidate PDCCH index may be used only for PDCCH single transmission.

(C) A first set of candidate PDCCHs in the first set of search spaces includes candidate PDCCHs for a target transmission. Wherein the target transmission comprises a PDCCH single transmission or a PDCCH repeated transmission.

To save signaling overhead for the network side device, one type of candidate PDCCH may be configured for a single transmission. For example, the network side device configures a first candidate PDCCH set (including one or more candidate PDCCHs, which may include AL and index values corresponding to the candidate PDCCHs) in a first SS set to be used for PDCCH single transmission. The above configuration may be configured in or out of the higher layer parameters of the first SS set.

Specifically, the determining, according to the relevant configuration information, a transmission mode of the PDCCH candidate may include:

c1: and all candidate PDCCHs corresponding to the first candidate PDCCH set in the first search space set are used for PDCCH single transmission.

For example, the network side device configures a PDCCH candidate with an index of 4 and AL =3 in the second SS set for PDCCH single transmission, or configures a plurality of PDCCH candidates (the configuration of each PDCCH candidate includes an AL value and a PDCCH candidate index) that may be used for PDCCH single transmission. The terminal may also determine that the part of the candidate PDCCHs included and configured in the second SS set can be used for both PDCCH repetition transmission and PDCCH single transmission if the candidate PDCCHs have the same AL value and the same candidate PDCCH index. Which part of the candidate PDCCH may be used for repeated transmission and which part of the candidate PDCCH may be used for single transmission may be further indicated by dynamic signaling.

c2: and a fifth part of candidate PDCCHs corresponding to the first candidate PDCCH set in the first search space set are used for PDCCH single transmission, and the fifth part of candidate PDCCHs are candidate PDCCHs which have different AL and different candidate PDCCH indexes from those of the candidate PDCCHs of the second search space set.

The terminal may determine, according to a configuration of the network-side device or a predefined rule, that a part of candidate PDCCHs in the first candidate PDCCH set in the first SS set (i.e., the fifth part of candidate PDCCHs) may be used for PDCCH single transmission, where the part of candidate PDCCHs is a candidate PDCCH that does not have the same AL and the same candidate PDCCH index as the candidate PDCCH of the second SS set.

c3: and the sixth part of candidate PDCCHs corresponding to the first candidate PDCCH set in the first search space set are used for PDCCH repeated transmission, the candidate PDCCHs corresponding to other candidate PDCCH sets except the first candidate PDCCH set are used for PDCCH repeated transmission, and the sixth part of candidate PDCCHs are candidate PDCCHs which have the same AL and have the same candidate PDCCH index as the candidate PDCCHs of the second search space set.

The terminal may determine that a part of candidate PDCCHs in the first set of candidate PDCCHs in the first SS set (i.e., the sixth part of candidate PDCCHs) may be used for PDCCH repetition transmission, the part of candidate PDCCHs being candidate PDCCHs having the same AL and the same candidate PDCCH index as the candidate PDCCHs in the second SS set, and may determine that other candidate PDCCHs in the first SS set, except the candidate PDCCHs in the first set, are all used for PDCCH repetition transmission.

It should be noted that the network side device may further configure the first PDCCH candidate set (including one or more PDCCH candidates, including AL and index values corresponding to the PDCCH candidates) in the first SS set to be only used for PDCCH single transmission, and then the terminal may determine that all PDCCH candidates in the first PDCCH candidate set in the first SS set are only used for PDCCH single transmission.

(D) Candidate PDCCHs contained in a first MO in the first search space set are used for target transmission; wherein the target transmission comprises a PDCCH single transmission or a PDCCH repeated transmission, and the first search space set is one of at least two associated search space sets.

All candidate PDCCHs included in the first MO may be determined to be used for single transmission or repeated transmission according to a configuration of the network side device or a predefined rule.

In the above, the related configuration information including the PDCCH candidate for single transmission is taken as an example for description, and a specific implementation method when the related configuration information includes the related information of the PDCCH candidate for repeated transmission is described below.

As an optional embodiment, the determining, according to the relevant configuration information, a transmission mode of the PDCCH candidate includes:

In this embodiment, when the target transmission in the relevant configuration information is PDCCH repeated transmission, for example: candidate PDCCHs corresponding to the first AL in the first search space set are used for repeated transmission; candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set are used for repeated transmission; candidate PDCCHs contained in a first candidate PDCCH set in the first search space set are used for repeated transmission; the candidate PDCCH included in the first MO in the first set of search spaces is used for repeated transmission. When the terminal determines the transmission mode of the candidate PDCCH according to the relevant configuration information, determining that the resources of the associated candidate PDCCH in the candidate PDCCH are used for PDCCH repeated transmission, and/or determining that the resources of the non-associated candidate PDCCH in the candidate PDCCH are used for PDCCH single transmission.

In the above embodiment, the network side device explicitly configures one or more PDCCH candidates in 2 associated SS sets to be used for PDCCH single transmission, and besides, the network side device may multiplex the existing PDCCH candidate configurations, and determine PDCCH candidates specifically used for PDCCH single transmission and PDCCH candidates specifically used for PDCCH repeated transmission according to a predefined rule.

The network side device may also implicitly indicate relevant configuration information of single transmission and/or repeated transmission of the PDCCH, for example, by configuring relevant parameter information of a search space set, and the terminal determines a transmission mode of the candidate PDCCH according to parameters of the search space set.

Specifically, the relevant configuration information may include at least one of:

(X): the numerical value of AL is partially the same between different sets of search spaces. That is, the AL values between at least two sets of search spaces are partially the same and partially different.

x1: in at least two search space sets, candidate PDCCHs with the same AL value and the same candidate PDCCH index are used for PDCCH repeated transmission, and the rest candidate PDCCHs in the at least two search space sets are used for PDCCH single transmission.

For example: the values of the AL configured in the 2 SS sets by the network side equipment are partially the same, for example, the quantity of AL contained in the first SS set is larger than that of AL in the second SS set.

The AL of the second SS set is 4 and 8, and the AL of the first SS set is 4, 8 and 16, the terminal may determine that PDCCH candidates having the same AL and the same PDCCH candidate index among the 2 SS sets may be used for PDCCH repeated transmission, and the other PDCCH candidates may be used for PDCCH single transmission only.

x2: and the candidate PDCCH corresponding to a second AL value of the first search space set is used for PDCCH single transmission, and the second AL value is an AL value different from that of the second search space set in the first search space set.

The numerical values of the AL configured by the network side equipment for 2 SS sets are partially the same, for example, the quantity of AL contained in the first SS set is larger than that of AL contained in the second SS set. The AL of the second SS set is 4 and 8, the AL of the first SS set is 4, 8 and 16, and the terminal may determine that all candidate PDCCHs at AL =16 (i.e., the second value) in the first SS set may be used for a single transmission of the PDCCH.

x3: and in the first search space set, the candidate PDCCHs corresponding to the same AL value as that of the second search space set are used for PDCCH repeated transmission.

The values of the AL configured in the 2 SS sets by the network side equipment are partially the same, for example, the quantity of AL contained in the first SS set is larger than that of AL in the second SS set. The AL of the second SS set is 4 and 8, the AL of the first SS set is 4, 8 and 16, and the terminal may determine that PDCCH candidates of AL =4 and 8 in the first SS set may be used for PDCCH repetition transmission.

(Y): the values of AL between different search space sets are all the same, and the number of candidate PDCCHs corresponding to at least one AL value in the first search space set is different from the number of candidate PDCCHs corresponding to the AL value in the second search space set. For example: the network side equipment configures 2 SS sets with the same AL value, wherein the number of candidate PDCCHs corresponding to at least one AL value of the first SS set is larger than that of the second SS set.

The first search space set is one of at least two associated search space sets, and the second search space set is the other search space sets except the first search space set.

The terminal can also multiplex the existing candidate PDCCH configuration, determine some candidate PDCCHs which can be used for PDCCH single transmission and candidate PDCCHs which can be used for PDCCH repeated transmission according to a predefined rule.

y1: in at least two search space sets, candidate PDCCHs with the same AL value and the same candidate PDCCH index are used for PDCCH repeated transmission, and the rest candidate PDCCHs in the at least two search space sets are used for PDCCH single transmission.

For example, when configuring 2 SS sets, the network side device may make 2 SS sets have the same AL, but the number of PDCCH candidates corresponding to at least one AL value of the first SS set is greater than that of the second SS set (where, the processing method when the number of PDCCH candidates corresponding to at least one AL value of the second SS set is greater than that of the first SS set is also similar, and only the first SS set and the second SS set need to be exchanged). For example, AL =8 in the second SS set configures 2 PDCCH candidates with index values of 0 and 1, and AL =8 in the first SS set configures 4 PDCCH candidates with index values of 0,1,2, and 3. The terminal may determine that candidate PDCCHs having the same AL (AL = 8) and the same candidate PDCCH index (0 and 1) among the 2 SS sets can be used for PDCCH repeated transmission and the other candidate PDCCHs can be used for PDCCH single transmission only.

y2: and the candidate PDCCH corresponding to a third AL value of the first search space set is used for PDCCH single transmission, and the third AL value is an AL value different from that of the second search space in the first search space set.

For example, when configuring 2 SS sets, the network side device makes 2 SS sets have the same AL, but the number of PDCCH candidates corresponding to at least one AL value of the first SS set is greater than that of the second SS set. For example, 2 PDCCH candidates are configured with AL =8 in the second SS set with index values of 0 and 1, and 4 PDCCH candidates are configured with AL =8 in the first SS set with index values of 0,1,2, and 3. The terminal may determine that AL =8 in the first secondary SS set and that PDCCH candidates with PDCCH candidates indices 2 and 3 (i.e., the third AL value) may be used for PDCCH single transmission.

y3: in the first search space set, candidate PDCCHs with the same AL value and the same candidate PDCCH index as the second search space set are used for PDCCH repeated transmission.

For example, when configuring 2 SS sets, the network side device makes the 2 SS sets have the same AL, but the number of candidate PDCCHs corresponding to at least one AL value of the first SS set is greater than the second SS set. For example, 2 PDCCH candidates are configured with AL =8 in the second SS set with index values of 0 and 1, and 4 PDCCH candidates are configured with AL =8 in the first SS set with index values of 0,1,2, and 3. The terminal may determine AL =8 in the first SS set and candidate PDCCHs with candidate PDCCH indices 0 and 1 may be used for PDCCH repetition transmission.

The implementation process of determining the transmission mode of the candidate PDCCH according to the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission is described above through a specific embodiment. The following describes a method for determining a decoding manner of the PDCCH candidate according to the relevant configuration information.

Specifically, the determining, according to the relevant configuration information, a decoding manner of the PDCCH candidate may include:

determining a transmission mode of the candidate PDCCH according to the relevant configuration information and a predefined rule; and determining the decoding mode of the candidate PDCCH according to the transmission mode of the candidate PDCCH. Wherein the predefined rule may indicate: the aggregation level AL is the same in value and candidate PDCCHs with the same candidate PDCCH index are associated. The step of determining the transmission mode of the candidate PDCCH is not described herein.

Specifically, the determining the decoding method of the PDCCH according to the transmission method of the PDCCH candidate may include:

In this embodiment, after the terminal determines the transmission mode on each PDCCH candidate, the terminal may use an independent decoding mode to detect the PDCCH candidate for single transmission of the PDCCH, and use a predefined decoding mode or an independent decoding mode configured on the network device side to detect the PDCCH candidate for repeated transmission of the PDCCH. For example, the network side device configuration terminal decodes the PDCCH repeated transmission by using at least one of the following methods:

soft combining decoding, which is a decoding assumption (for example, assume 1 to 4 respectively indicate that the terminal performs joint decoding, independent decoding, decoding of the first PDCCH candidate +2 PDCCH candidates, and joint decoding of the 2 PDCCH candidates +2 PDCCH candidates for two transmissions on the PDCCH);

a decoding scheme (e.g., 2 or 3 complexity cells) in which a complexity cell (assuming that a complexity cell for independently decoding one candidate PDCCH is 1) is a specific value;

and (4) independently decoding.

The predefined decoding mode represents a decoding mode determined by the terminal according to the decoding capability, and the specific decoding mode may also be one of the several modes configured by the network side device.

It should be noted that the terminal may determine the decoding manner of the candidate PDCCH directly according to the configuration information related to single transmission and/or repeated transmission of the candidate PDCCH, that is, the transmission manner of the candidate PDCCH does not need to be determined. For example: if the relevant configuration information comprises: if the candidate PDCCH corresponding to the first AL in the first search space set is used for single transmission of a PDCCH, the terminal independently decodes all candidate PDCCHs corresponding to the first AL in the first search space set; or the terminal independently decodes the first part of candidate PDCCHs corresponding to the first AL in the first search space set; or, the terminal performs joint decoding on a second part of candidate PDCCHs corresponding to the first AL in the first search space set.

For example: if the relevant configuration information comprises: if the candidate PDCCH corresponding to the first candidate PDCCH index in the first search space set is used for PDCCH single transmission, the terminal independently decodes all candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set; or, the terminal independently decodes a third part of candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set; or, the terminal independently decodes the fourth part of candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set, and jointly decodes candidate PDCCHs corresponding to other indexes except the first candidate PDCCH index.

When determining the decoding manner according to the relevant configuration information, the terminal refers to an embodiment in which the terminal determines the transmission manner of the candidate PDCCH, but the terminal may directly determine the corresponding decoding manner without performing the step of determining the transmission manner, which is not described herein.

As shown in fig. 2, an embodiment of the present invention provides a control channel transmission method, including:

step 201, the network side device configures the PDCCH for the relevant configuration information of single transmission and/or repeated transmission.

The network side device may configure the relevant configuration information in a display or implicit manner, for example: and the network side equipment directly sends the relevant indication information to the terminal, or the network side equipment determines the relevant configuration information of the candidate PDCCH for single transmission and/or repeated transmission according to the configuration parameters of the search space set by configuring the parameters of the search space set. The related configuration information may be sent through a separate signaling, or may be sent together with the configuration information of the search space set, that is, may be carried in the configuration information of the search space set.

Further, the configuring information about configuring the PDCCH for single transmission and/or repeated transmission may include:

Parameters of a set of search spaces are configured.

In this embodiment, the network side device may directly send the relevant configuration information of single transmission and/or repeated transmission of the candidate PDCCH to the terminal, and may send the configuration information through a separate signaling, or send the configuration information together with the search space set. The terminal may determine the transmission mode and/or the decoding mode according to the relevant configuration information after receiving the relevant configuration information. In the relevant configuration information sent by the network side device, whether the candidate PGCCH is used for single transmission or for repeated transmission may be directly indicated, or implicitly indicated by other relevant configuration information (e.g., relevant configuration parameters of the search space set).

The network side device may also implicitly indicate, by configuring a parameter of the search space set (i.e., configuration information of the search space set), related configuration information of single transmission and/or repeated transmission of the PDCCH candidate. And the terminal determines different transmission modes and/or decoding modes of the candidate PDCCHs corresponding to different search space configurations according to the parameters of the search space set.

The terminal acquires the relevant configuration information, and may determine, in combination with a predefined rule, an actual transmission mode of the candidate PDCCH, for example: according to the predefined rule, associated candidate PDCCHs are determined, and candidate PDCCHs (such as the associated candidate PDCCHs) used for PDCCH repeated transmission or candidate PDCCHs used for PDCCH single transmission (such as other independent candidate PDCCHs except the associated candidate PDCCHs) are determined by combining the related configuration information.

the numerical values of AL in different search space sets are all the same, and the number of the candidate PDCCHs corresponding to at least one numerical value of AL in the first search space set is different from the number of the candidate PDCCHs corresponding to the numerical value of AL in the second search space set;

After the network side device indicates, in a displayed and/or implicit manner, the PDCCH to perform the relevant configuration information of single transmission and/or repeated transmission, the terminal determines the transmission mode and/or the decoding mode of the candidate PDCCH according to the relevant configuration information and the predefined rule, and a specific implementation process of determining the transmission mode and/or the decoding mode of the candidate PDCCH by the terminal is the same as the embodiment of the method applied to the terminal, which is not described herein again.

According to the embodiment of the invention, the network side equipment configures the relevant configuration information of single transmission and/or repeated transmission of the PDCCH in a display or implicit mode, so that the terminal determines the transmission mode and/or decoding mode of the candidate PDCCH according to the relevant configuration information, and corresponding transmission or detection is carried out on the candidate PDCCH with different functions.

The above embodiments are described with respect to the positioning method of the present invention, and the following embodiments will further describe the corresponding apparatus with reference to the accompanying drawings.

Specifically, as shown in fig. 3, an embodiment of the present invention provides a control channel transmission apparatus 300, which is applied to a terminal, and includes:

a first obtaining unit 310, configured to obtain configuration information related to single transmission and/or repeated transmission of a candidate physical downlink control channel PDCCH;

a first determining unit 320, configured to determine, by the terminal, a transmission mode and/or a decoding mode of the PDCCH candidate according to the relevant configuration information.

Optionally, the first obtaining unit 310 is specifically configured to:

Optionally, the first determining unit is specifically configured to: determining a transmission mode and/or a decoding mode of the candidate PDCCH according to the relevant configuration information and a predefined rule;

Optionally, the relevant configuration information comprises at least one of:

Optionally, the relevant configuration information includes at least one of:

Optionally, the first determining unit is specifically configured to:

a third part of candidate PDCCHs corresponding to the first candidate PDCCH index in the first search space set are used for PDCCH single transmission, and the third part of candidate PDCCHs are candidate PDCCHs which have different AL and different candidate PDCCH indexes from those of the candidate PDCCHs in the second search space set;

Optionally, the first determining unit is specifically configured to:

a fifth part of candidate PDCCHs corresponding to a first candidate PDCCH set in the first search space set are used for PDCCH single transmission, and the fifth part of candidate PDCCHs are candidate PDCCHs which have different AL and different candidate PDCCH indexes from those of the candidate PDCCHs of a second search space set;

Optionally, the first determining unit includes:

a first determining subunit, configured to determine, if the target transmission includes a repeated transmission, a resource having an associated candidate PDCCH among the candidate PDCCHs for PDCCH repeated transmission; and/or the presence of a gas in the gas,

a second determining subunit, configured to determine that resources of unassociated candidate PDCCHs in the candidate PDCCHs are used for PDCCH single transmission.

Optionally, the first determining unit is specifically configured to:

Optionally, the first determining unit includes:

a third determining subunit, configured to determine, according to the relevant configuration information and a predefined rule, a transmission mode of the candidate PDCCH;

a fourth determining subunit, configured to determine, according to the transmission mode of the PDCCH candidate, a decoding mode of the PDCCH candidate.

Optionally, the fourth determining subunit is specifically configured to:

It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment applied to the terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are not repeated herein.

As shown in fig. 4, an embodiment of the present invention provides a control channel transmission apparatus 400, applied to a network side device, including:

a configuring unit 410, configured to configure configuration information related to single transmission and/or repeated transmission of the PDCCH.

Optionally, the configuration unit includes:

a sending subunit, configured to send, to the terminal, configuration information related to single transmission and/or repeated transmission of the PDCCH; and/or

And the configuration subunit is used for configuring the parameters of the search space set.

Optionally, the relevant configuration information comprises at least one of:

Optionally, the relevant configuration information includes at least one of:

the numerical part of AL is the same between different sets of search spaces;

It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment applied to the network side device, and can achieve the same technical effect, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not described herein again.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

As shown in fig. 5, an embodiment of the present invention further provides a terminal, including: memory 520, transceiver 500, processor 510; a memory 520 for storing a computer program; a transceiver 500 for transceiving data under the control of the processor 510;

a processor for reading the computer program in the memory and performing the following:

Optionally, the relevant configuration information comprises at least one of:

the numerical part of AL is the same between different sets of search spaces;

all candidate PDCCHs corresponding to a first candidate PDCCH index in the first search space set are used for PDCCH single transmission;

and a sixth part of candidate PDCCHs corresponding to the first candidate PDCCH set in the first search space set are used for PDCCH repeated transmission, candidate PDCCHs corresponding to other candidate PDCCH sets except the first candidate PDCCH set are used for PDCCH repeated transmission, and the sixth part of candidate PDCCHs are candidate PDCCHs which have the same AL as the candidate PDCCHs of the second search space set and have the same candidate PDCCH index.

It should be noted that in FIG. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 510 and various circuits of memory represented by memory 520 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 500 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. For different terminals, the user interface 530 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 510 in performing operations.

Alternatively, the processor 510 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

It should be noted that, the terminal provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment applied to the terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are not repeated herein.

As shown in fig. 6, an embodiment of the present invention further provides a network side device, including: memory 620, transceiver 600, processor 610; wherein, the memory 620 is used for storing the computer program; a transceiver 600 for transceiving data under the control of the processor 610; a processor for reading the computer program in the memory and performing the following:

Optionally, the configuring information about configuring the PDCCH for single transmission and/or repeated transmission includes:

Parameters of a set of search spaces are configured.

Optionally, the relevant configuration information comprises at least one of:

Where, in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 610, and various circuits, represented by the memory 620, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 600 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 610 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

The processor 610 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and may also have a multi-core architecture.

It should be noted that, the network side device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment applied to the network side device, and can achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated herein.

In addition, a processor-readable storage medium is provided, on which a computer program is stored, wherein the program, when executed by a processor, implements the steps of the control channel transmission method as described above. And the same technical effect can be achieved, and in order to avoid repetition, the description is omitted here. The readable storage medium can be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical memory (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid State Disk (SSD)), etc.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for control channel transmission, comprising:

2. The method according to claim 1, wherein the obtaining the configuration information related to single transmission and/or repeated transmission of the candidate PDCCH comprises:

3. The method according to claim 1, wherein the determining the transmission scheme and/or the decoding scheme of the PDCCH candidate according to the related configuration information comprises:

4. The method of claim 1, wherein the related configuration information comprises at least one of:

5. The method of claim 1, wherein the related configuration information comprises at least one of:

the numerical part of AL is the same between different sets of search spaces;

6. The method according to claim 4, wherein the determining the transmission scheme of the PDCCH candidate according to the related configuration information comprises:

7. The method according to claim 4, wherein the determining the transmission scheme of the PDCCH candidate according to the related configuration information comprises:

8. The method according to claim 4, wherein the determining the transmission mode of the PDCCH candidate according to the related configuration information comprises:

9. The method according to claim 4, wherein the determining the transmission mode of the PDCCH candidate according to the related configuration information comprises:

10. The method according to claim 5, wherein the determining the transmission mode of the PDCCH candidate according to the related configuration information comprises:

11. The method according to claim 5, wherein the determining the transmission mode of the PDCCH candidate according to the related configuration information comprises:

12. The method of claim 1, wherein the determining the decoding manner of the PDCCH candidate according to the relevant configuration information comprises:

13. The method according to claim 12, wherein the determining the decoding scheme of the PDCCH according to the transmission scheme of the PDCCH candidate comprises:

14. A method for control channel transmission, comprising:

15. The method according to claim 14, wherein the configuring information related to single transmission and/or repeated transmission of the PDCCH comprises:

Parameters of a set of search spaces are configured.

16. The method of claim 14, wherein the related configuration information comprises at least one of:

17. The method of claim 14, wherein the related configuration information comprises at least one of:

the numerical part of AL is the same between different sets of search spaces;

18. A terminal, comprising: memory, transceiver, processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

19. The terminal according to claim 18, wherein the obtaining of the configuration information related to single transmission and/or repeated transmission of the candidate PDCCH comprises:

20. The terminal according to claim 18, wherein the determining a transmission scheme and/or a decoding scheme of the PDCCH candidate according to the relevant configuration information comprises:

21. The terminal of claim 18, wherein the related configuration information comprises at least one of:

22. The terminal of claim 18, wherein the related configuration information comprises at least one of:

23. The terminal of claim 21, wherein the determining the transmission mode of the PDCCH candidate according to the relevant configuration information comprises:

24. The terminal of claim 21, wherein the determining the transmission mode of the PDCCH candidate according to the relevant configuration information comprises:

25. The terminal of claim 21, wherein the determining the transmission mode of the PDCCH candidate according to the relevant configuration information comprises:

26. The terminal of claim 21, wherein the determining the transmission mode of the PDCCH candidate according to the relevant configuration information comprises:

27. The terminal of claim 22, wherein the determining the transmission mode of the PDCCH candidate according to the relevant configuration information comprises:

candidate PDCCHs corresponding to a second AL value of the first search space set are used for single transmission of the PDCCHs, and the second AL value is an AL value different from that of the second search space set in the first search space set;

28. The terminal of claim 22, wherein the determining the transmission mode of the PDCCH candidate according to the relevant configuration information comprises:

a candidate PDCCH corresponding to a third AL value of the first search space set is used for single transmission of the PDCCH, and the third AL value is an AL value different from that of the second search space in the first search space set;

29. The terminal of claim 18, wherein the determining a decoding scheme of the PDCCH candidate according to the relevant configuration information comprises:

30. The terminal of claim 29, wherein the determining a decoding scheme of the PDCCH according to the transmission scheme of the PDCCH candidate comprises:

31. A network-side device, comprising: memory, transceiver, processor:

32. The network side device of claim 31, wherein the configuration information related to configuring the PDCCH for single transmission and/or repeated transmission includes:

Parameters of a set of search spaces are configured.

33. The network-side device of claim 31, wherein the relevant configuration information comprises at least one of:

34. The network-side device of claim 31, wherein the relevant configuration information comprises at least one of:

the numerical part of AL is the same between different sets of search spaces;

35. A control channel transmission apparatus, comprising:

36. A control channel transmission apparatus, comprising:

37. A processor-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the control channel transmission method according to one of claims 1 to 13 or carries out the steps of the control channel transmission method according to one of claims 14 to 17.