CN110830156B

CN110830156B - Channel transmission method, device, terminal and base station

Info

Publication number: CN110830156B
Application number: CN201810903454.8A
Authority: CN
Inventors: 王磊; 艾托尼
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-08-09
Filing date: 2018-08-09
Publication date: 2021-11-26
Anticipated expiration: 2038-08-09
Also published as: WO2020029847A1; CN110830156A

Abstract

The invention provides a channel transmission method, a device, a terminal and a base station, wherein the channel transmission method comprises the following steps: and when the resource position used for transmitting the Physical Downlink Shared Channel (PDSCH) of the terminal is overlapped with the resource position occupied by the Physical Downlink Control Channel (PDCCH) of other non-scheduling PDSCH of the terminal, mapping PDSCH data by adopting the same processing mode as the base station. In the scheme, when the resource position used for transmitting the PDSCH of the terminal is overlapped with the resource position occupied by the PDCCH of other non-scheduling PDSCH of the terminal, the PDSCH data is mapped by adopting the same processing mode as the base station; the base station and the terminal have the same understanding when the positions of the PDSCH and the PDCCH resources are overlapped, and the scheduling limitation of the base station side is reduced.

Description

Channel transmission method, device, terminal and base station

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a channel transmission method, an apparatus, a terminal, and a base station.

Background

At present, in a long term evolution LTE system, a resource region for transmitting a downlink control channel and a resource region for transmitting a data channel are completely isolated, so that an overlap situation does not occur between a PDSCH (physical downlink shared channel) and a PDCCH (physical downlink control channel).

In the new air interface NR system, in order to improve the spectrum efficiency, resources that do not actually transmit the PDCCH in the control resource set CORESET may be used for transmission of the downlink data channel. However, there is currently no clear solution when the PDSCH collides with other downlink control channel PDCCH candidate resources of the terminal.

According to the processing method in the current NR system, when the PDSCH scheduled by the PDCCH overlaps with the core set for transmitting the PDCCH, it is considered that other resources except the resource location occupied by the scheduled PDCCH can be used for the transmission of the PDSCH, that is, the PDSCH only performs rate matching around the PDCCH candidate of the scheduled PDSCH. In practice, however, the base station may choose to transmit downlink control information DCI for other scheduling in the same core set, for example, an uplink grant UL grant for scheduling uplink data, or downlink assignment information DL assignment for scheduling broadcast information. If such a conflict situation is not defined, the base station needs to avoid similar scheduling, which will bring some limitations to the scheduling.

That is, in the 5G system, the resource not occupied by the PDCCH candidate of the scheduled PDSCH in the resource set for transmitting the downlink control channel can be used for transmission of the downlink data channel. The base station may send different types of downlink control information, such as a UL grant for uplink scheduling and a DL assignment for broadcast information scheduling, in one search space or multiple search spaces within the same or different CORESET configured for the terminal. When the PDSCH scheduled by the PDCCH scrambled by the cell radio network temporary identity C-RNTI overlaps with other PDCCH candidates transmitting downlink control information, there is no clear solution for the base station and the terminal how to handle the current situation.

Disclosure of Invention

The invention aims to provide a channel transmission method, a channel transmission device, a terminal and a base station, and solves the problem that scheduling limitation exists on the base station side when resource positions of a PDSCH and a PDCCH are overlapped in the prior art.

In order to solve the above technical problem, an embodiment of the present invention provides a channel transmission method, applied to a terminal, including:

and when the resource position used for transmitting the Physical Downlink Shared Channel (PDSCH) of the terminal is overlapped with the resource position occupied by the Physical Downlink Control Channel (PDCCH) of other non-scheduling PDSCH of the terminal, mapping PDSCH data by adopting the same processing mode as the base station.

Optionally, the mapping PDSCH data in the same processing manner as that of the base station includes:

performing rate matching on the PDSCH around resource positions occupied by PDCCHs of other non-scheduled PDSCHs; or

And perforating the PDSCH by adopting the PDCCH of the other non-scheduled PDSCHs.

Optionally, performing rate matching on the PDSCH around resource locations occupied by PDCCHs of other non-scheduled PDSCHs, including:

when receiving a PDSCH scheduled by downlink control information DCI scrambled by a preset radio network temporary identifier RNTI, rate matching is performed around resources occupied by other PDCCHs which are not used for scheduling the PDSCH and transmitted in a control resource set CORESET configured for the terminal.

Optionally, the preset RNTI is an RNTI related to the terminal scheduling.

Optionally, the PDCCH of the other non-scheduled PDSCHs is a downlink control channel sent by the base station and used for scheduling other data transmissions of the terminal.

Optionally, the resource location of the PDSCH overlaps with one or more CORESET configured for the terminal by a high layer signaling, and the PDCCH of the PDSCH is not scheduled to be transmitted in the one or more CORESET.

Optionally, the PDCCHs of the other non-scheduled PDSCHs are transmitted within the same CORESET used for transmitting the PDCCH for scheduling the PDSCH, or are transmitted within other CORESETs of the terminal.

Optionally, when the PDCCH of the other non-scheduled PDSCH is transmitted in the same CORESET used for transmitting the PDCCH for scheduling the PDSCH, the PDCCH scheduled for the PDSCH is transmitted in the same search space or in a different search space.

Optionally, puncturing the PDSCH by using the PDCCH of the other non-scheduled PDSCH includes:

receiving a PDSCH according to scheduling information contained in Downlink Control Information (DCI) sent by a base station;

and when other PDCCHs which do not schedule the PDSCH are transmitted in the transmission resources of the PDSCH, the PDSCH is punched by adopting the other PDCCHs which do not schedule the PDSCH.

The embodiment of the invention also provides a channel transmission method, which is applied to a base station and comprises the following steps:

and when the resource position used by the transmission of the Physical Downlink Shared Channel (PDSCH) of the terminal is overlapped with the resource position occupied by the Physical Downlink Control Channel (PDCCH) of other non-scheduling PDSCH of the terminal, mapping PDSCH data by adopting the same processing mode as the terminal.

Optionally, the mapping PDSCH data in the same processing manner as that of the terminal includes:

when a PDSCH scheduled by downlink control information DCI scrambled by a preset radio network temporary identifier RNTI is sent, if resources occupied by PDSCH transmission are overlapped with resources occupied by PDCCHs of other non-scheduled PDSCHs of the terminal, rate matching is carried out around the resources occupied by the PDCCHs of the other non-scheduled PDSCHs when the PDSCH is mapped.

Optionally, the resource location of the PDSCH overlaps with one or more control resource sets, CORESET, configured for the terminal by a high-level signaling, and the PDCCHs of other non-scheduled PDSCHs are transmitted in the one or more CORESETs.

when a PDSCH scheduled by downlink control information DCI scrambled by a preset radio network temporary identifier RNTI is transmitted, if resources occupied by PDSCH transmission are overlapped with resources occupied by PDCCHs of other non-scheduled PDSCHs of the terminal, punching is carried out on the PDSCH when the PDCCHs of the other non-scheduled PDSCHs are mapped.

Optionally, the puncturing the PDSCH when mapping the PDCCH of the other non-scheduled PDSCH includes:

mapping the PDSCH on resources allocated to the terminal according to the transmitted DCI;

and on resource positions occupied by PDCCHs of other non-scheduled PDSCHs, using information carried by the PDCCHs of the other non-scheduled PDSCHs to punch the PDSCHs.

The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor; the processor implements the following steps when executing the program:

Optionally, the processor is specifically configured to:

Optionally, the preset RNTI is an RNTI related to the terminal scheduling.

The embodiment of the invention also provides a base station, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor; the processor implements the following steps when executing the program:

Optionally, the processor is specifically configured to:

Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the channel transmission method described above.

The embodiment of the invention also provides a channel transmission device, which is applied to a terminal and comprises the following components:

and the first processing module is used for mapping the PDSCH data by adopting the same processing mode as the base station when the resource position used for transmitting the PDSCH of the terminal is overlapped with the resource position occupied by the PDCCH of other physical downlink control channels which do not schedule the PDSCH of the terminal.

Optionally, the first processing module includes:

a first processing sub-module, configured to perform rate matching on resource positions occupied by the PDSCH around other PDCCHs that do not schedule the PDSCH; or

Optionally, the preset RNTI is an RNTI related to the terminal scheduling.

The embodiment of the invention also provides a channel transmission device, which is applied to a base station and comprises the following components:

and the second processing module is used for mapping the PDSCH data by adopting the same processing mode as the terminal when the resource position used for transmitting the PDSCH of the terminal is overlapped with the resource position occupied by the PDCCH of other non-scheduling PDSCH of the terminal.

Optionally, the second processing module includes:

a second processing sub-module, configured to perform rate matching on resource positions occupied by the PDSCH around other PDCCHs that do not schedule the PDSCH; or

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

in the above scheme, the channel transmission method maps PDSCH data in the same processing manner as that of the base station when the resource location used for the transmission of the PDSCH of the physical downlink shared channel of the terminal overlaps with the resource location occupied by the PDCCH of other physical downlink control channels which do not schedule the PDSCH of the terminal; the base station and the terminal have the same understanding when the positions of the PDSCH and the PDCCH resources are overlapped, and the scheduling limitation of the base station side is reduced.

Drawings

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

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

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

fig. 4 is a schematic diagram illustrating a second implementation of the channel transmission method according to the embodiment of the present invention;

fig. 5 is a third schematic diagram illustrating an implementation of a channel transmission method according to an embodiment of the present invention;

fig. 6 is a fourth schematic diagram illustrating an implementation of a channel transmission method according to an embodiment of the present invention;

fig. 7 is a fifth schematic diagram illustrating an implementation of a channel transmission method according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 10 is a first schematic structural diagram of a channel transmission apparatus according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a channel transmission apparatus 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.

The present invention provides a channel transmission method for a terminal, as shown in fig. 1, for solving the problem of scheduling restriction at a base station side when resource positions of a PDSCH and a PDCCH overlap in the prior art, including:

step 11: and when the resource position used for transmitting the Physical Downlink Shared Channel (PDSCH) of the terminal is overlapped with the resource position occupied by the Physical Downlink Control Channel (PDCCH) of other non-scheduling PDSCH of the terminal, mapping PDSCH data by adopting the same processing mode as the base station.

In the channel transmission method provided by the embodiment of the invention, when the resource position used for the transmission of the Physical Downlink Shared Channel (PDSCH) of the terminal is overlapped with the resource position occupied by the Physical Downlink Control Channel (PDCCH) of other non-scheduled PDSCH of the terminal, the PDSCH data is mapped by adopting the same processing mode as that of a base station; the base station and the terminal have the same understanding when the positions of the PDSCH and the PDCCH resources are overlapped, and the scheduling limitation of the base station side is reduced.

In the embodiment of the present invention, two examples are provided for "mapping PDSCH data in the same processing manner as that of the base station": the mapping of the PDSCH data by adopting the same processing mode as the base station comprises the following steps: in an example one, performing rate matching on the PDSCH around resource positions occupied by PDCCHs of other non-scheduled PDSCHs; or in example two, the PDSCH is punctured by using the PDCCH of the other non-scheduled PDSCH.

For example one, rate matching the PDSCH around resource locations occupied by PDCCHs of other non-scheduled PDSCHs includes: when receiving a PDSCH scheduled by downlink control information DCI scrambled by a preset radio network temporary identifier RNTI, rate matching is performed around resources occupied by other PDCCHs which are not used for scheduling the PDSCH and transmitted in a control resource set CORESET configured for the terminal.

And the preset RNTI is the RNTI related to the terminal scheduling.

And the PDCCH of the other non-scheduling PDSCH is a downlink control channel which is sent by the base station and used for scheduling other data transmission of the terminal.

And the resource position of the PDSCH is overlapped with one or more CORESETs configured for the terminal by a high-level signaling, and other PDCCHs which do not schedule the PDSCH are transmitted in the one or more CORESETs.

And the PDCCH of the other non-scheduling PDSCH is transmitted in the same CORESET used for transmitting the PDCCH for scheduling the PDSCH, or is transmitted in other CORESETs of the terminal.

Specifically, when the other PDCCHs not scheduling the PDSCH are transmitted within the same CORESET used for transmitting the PDCCH for scheduling the PDSCH, the PDCCH scheduling the PDSCH is transmitted within the same search space or is transmitted within a different search space.

For example two, puncturing the PDSCH with the PDCCH of the other non-scheduled PDSCH includes: receiving a PDSCH according to scheduling information contained in Downlink Control Information (DCI) sent by a base station; and when other PDCCHs which do not schedule the PDSCH are transmitted in the transmission resources of the PDSCH, the PDSCH is punched by adopting the other PDCCHs which do not schedule the PDSCH.

An embodiment of the present invention further provides a channel transmission method, applied to a base station, as shown in fig. 2, including:

step 21: and when the resource position used by the transmission of the Physical Downlink Shared Channel (PDSCH) of the terminal is overlapped with the resource position occupied by the Physical Downlink Control Channel (PDCCH) of other non-scheduling PDSCH of the terminal, mapping PDSCH data by adopting the same processing mode as the terminal.

The channel transmission method provided by the embodiment of the invention maps PDSCH data by adopting the same processing mode as the terminal when the resource position used by the transmission of the PDSCH of the physical downlink shared channel of the terminal is overlapped with the resource position occupied by the PDCCH of other physical downlink control channels of the non-scheduling PDSCH of the terminal; the base station and the terminal have the same understanding when the positions of the PDSCH and the PDCCH resources are overlapped, and the scheduling limitation of the base station side is reduced.

In the embodiment of the present invention, two examples are provided for "mapping PDSCH data in the same processing manner as that of the terminal: the mapping of the PDSCH data in the same processing mode as that of the terminal comprises the following steps: in an example one, performing rate matching on the PDSCH around resource positions occupied by PDCCHs of other non-scheduled PDSCHs; or in example two, the PDSCH is punctured by using the PDCCH of the other non-scheduled PDSCH.

For example one, rate matching the PDSCH around resource locations occupied by PDCCHs of other non-scheduled PDSCHs includes: when a PDSCH scheduled by downlink control information DCI scrambled by a preset radio network temporary identifier RNTI is sent, if resources occupied by PDSCH transmission are overlapped with resources occupied by PDCCHs of other non-scheduled PDSCHs of the terminal, rate matching is carried out around the resources occupied by the PDCCHs of the other non-scheduled PDSCHs when the PDSCH is mapped.

And the resource position of the PDSCH is overlapped with one or more control resource sets (CORESET) configured for the terminal by a high-level signaling, and other PDCCHs which do not schedule the PDSCH are transmitted in the one or more CORESETs.

For example two, puncturing the PDSCH with the PDCCH of the other non-scheduled PDSCH includes: when a PDSCH scheduled by downlink control information DCI scrambled by a preset radio network temporary identifier RNTI is transmitted, if resources occupied by PDSCH transmission are overlapped with resources occupied by PDCCHs of other non-scheduled PDSCHs of the terminal, punching is carried out on the PDSCH when the PDCCHs of the other non-scheduled PDSCHs are mapped.

Specifically, the puncturing the PDSCH when mapping the PDCCH of the other non-scheduled PDSCH includes: mapping the PDSCH on resources allocated to the terminal according to the transmitted DCI; and on resource positions occupied by PDCCHs of other non-scheduled PDSCHs, using information carried by the PDCCHs of the other non-scheduled PDSCHs to punch the PDSCHs.

The channel transmission method provided by the embodiment of the present invention is further described below with reference to the terminal and the base station.

To solve the above technical problem, an embodiment of the present invention provides a channel transmission method, which mainly includes: when a data channel PDSCH of a terminal overlaps with other downlink control channels transmitted in one or more CORESET configured by a base station for the terminal on resources (the other downlink control channels are other control channels for scheduling terminal data transmission), the terminal performs rate matching around resource positions occupied by the other downlink control channels when receiving the PDSCH, or the PDSCH of the terminal is punctured by the other downlink control channels.

Wherein, the terminal side:

(1) when the terminal receives the PDSCH scheduled by the DCI scrambled by the preset radio network temporary identifier RNTI, rate matching is carried out around resources occupied by PDCCHs of other non-scheduled PDSCHs transmitted in CORESET configured for the terminal by the base station. Correspondingly, the base station side maps the PDSCH according to the rate matching mode when transmitting data.

The predetermined RNTI is an RNTI associated with a predetermined terminal scheduling, such as a cell radio network temporary identity C-RNTI, a CS-RNTI (Configured scheduling), etc.;

the PDCCH of the Other non-scheduled PDSCH is a downlink Control channel sent by the base station for scheduling Other data transmissions of the same terminal (the same terminal), such as an uplink grant UL grant for scheduling PUSCH, scheduling broadcast information (remaining minimum system information RMSI, OSI (Other system information), downlink allocation information DL assignment for RAR (Random access response, Paging, etc.), PDCCH (SFI (slot format indication) for carrying multicast Control signaling), PI (Pre-indication), preemption indicator), TPC (Transmitter Power Control, transmit Power Control, etc.);

-the resource location of the PDSCH overlaps with one or more CORESET configured for the terminal by higher layer signaling, and other PDCCHs not scheduling the PDSCH are transmitted within the one or more CORESET;

-the PDCCHs of said other non-scheduled PDSCHs are transmitted within the same CORESET (first CORESET) that transmitted said PDCCHs, or within other CORESETs of the terminal (the remaining CORESETs of the configured CORESETs for the terminal, except the first CORESET);

when the PDCCH of the other non-scheduled PDSCH is transmitted in the same CORESET transmitting the PDCCH (the PDCCH scheduling the PDSCH), the PDCCH and the PDCCH are transmitted in the same search space or different search spaces.

Alternatively, (2) the terminal receives the PDSCH according to the scheduling information included in the DCI transmitted by the base station. And when other PDCCHs are transmitted in the transmission resources of the PDSCH, the PDSCH is punched by the PDCCHs. Correspondingly, the base station side maps the PDSCH and the PDCCH in a puncturing mode when transmitting data.

A base station side:

(1) when the base station transmits the PDSCH scheduled by the DCI scrambled by the preset RNTI, if the resources occupied by the PDSCH transmission are overlapped with the resources occupied by other PDCCHs (other PDCCHs not scheduling the PDSCH) of the terminal, the base station performs rate matching around the other PDCCHs when mapping the PDSCH, namely the base station does not map the data of the PDSCH on the resources occupied by the other PDCCHs. Correspondingly, the terminal side also receives the PDSCH according to the rate matching method.

-said other PDCCH is a downlink control channel sent by the base station for scheduling other data transmissions of the same terminal, e.g. UL grant scheduling PUSCH, DL assignment scheduling broadcast information (RMSI, OSI, RAR, Paging, etc.), PDCCH carrying multicast control signaling (SFI, PI, TPC, etc.);

-said other PDCCH is transmitted within the same core set (first core set) that transmitted said PDCCH, or within other core sets of the terminal (the remaining ones of the configured core sets for the terminal except the first core set);

when the other PDCCH is transmitted within the same CORESET in which the PDCCH (the PDCCH scheduling the PDSCH) is transmitted, the other PDCCH is transmitted within the same search space as the PDCCH or within a different search space from the PDCCH.

Or, (2) when the base station transmits the PDSCH scheduled by the DCI scrambled by the preset RNTI, if the resources occupied by the PDSCH transmission overlap with the resources occupied by other PDCCHs (other PDCCHs not scheduling the PDSCH) of the terminal, the base station performs a puncuture on the PDSCH while mapping the other PDCCHs. Correspondingly, the terminal side also performs reception in a puncturing manner when receiving the PDSCH.

-the base station first maps the PDSCH on the resources allocated to the terminal according to the transmitted DCI;

-then puncturing the PDSCH using information carried by other PDCCHs, on resource locations occupied by the other PDCCHs.

The following illustrates a channel transmission method provided in the embodiment of the present invention.

Example 1: suppose that the base station configures N CORESET for the terminal, and transmits DL assignment for scheduling downlink data and UL grant for scheduling uplink data in the same search space in the same CORESET. And the CRC (cyclic redundancy check) added by the DCI for downlink data scheduling is scrambled through the C-RNTI or the CS-RNTI. The resources occupied by the PDSCH scheduled by DL assignment overlap with the physical resources occupied by the PDCCH candidate transmitting the UL grant. And when the terminal receives the PDSCH according to the scheduling information of the DCI, performing rate matching around physical resources occupied by PDCCH candidate of the UL grant. When the base station transmits the PDSCH, the PDSCH data is rate matched around the physical resources occupied by the PDCCH candidate of the UL grant.

As shown in FIG. 3, Rate matching the resources around those in the circle; in the figure, "region" indicates a region, and "Slot n" and "Slot n + 1" indicate adjacent two slots.

Example 2: suppose that the base station configures N CORESET for the terminal, and sends the DL assignment for scheduling unicast downlink data and the DL assignment for scheduling broadcast downlink data in the same search space in the same CORESET. The DCI-added CRC for unicast downlink data scheduling is scrambled by C-RNTI or CS-RNTI, and the DCI-added CRC for scheduling broadcast downlink data scheduling is scrambled by SI (system information) -RNTI or P (Paging) -RNTI or RA (random access) -RNTI. The resources occupied by the pdsch (DL assignment for uplink pdsch) scheduled by unicast DL assignment overlap with the physical resources occupied by pdcch (DL assignment for broadcast pdsch) candidate transmitting broadcast downlink data DL assignment. And when the terminal receives the unicast PDSCH according to the scheduling information of the DCI, rate matching is carried out around the physical resource occupied by the PDCCH candidate for scheduling and broadcasting the downlink data DL assignment. When the base station transmits the PDSCH, the PDSCH data is rate matched around the physical resource occupied by the PDCCH candidate scheduling the downlink data DL assignment.

As shown in FIG. 4, Rate matching the resources around those in the circle; in the figure, "region" indicates a region, "Slot n" and "Slot n + 1" indicate two adjacent time slots, PDSCH1 indicates a Unicast PDSCH, and PDSCH2 indicates a Broadcast PDSCH.

Example 3: for example 1 and example 2, the DCI scheduling the terminal unicast PDSCH and the DCI scheduling the PUSCH and/or the DCI scheduling the broadcast multicast data may be transmitted in one CORESET configured by the base station for the terminal, or may be transmitted in multiple CORESETs configured by the base station for the terminal. Likewise, three different DCIs may be transmitted in one search space or in different search spaces.

Example 4: suppose that the base station configures N CORESET for the terminal, and transmits DL assignment for scheduling downlink data and UL grant for scheduling uplink data in the same search space in the same CORESET. And the CRC added by the DCI for downlink data scheduling is scrambled through C-RNTI or CS-RNTI. The resources occupied by the PDSCH scheduled by DL assignment overlap with the physical resources occupied by the PDCCH candidate transmitting the UL grant. The terminal receives the PDSCH according to the DCI scheduling information, and knows that the overlap position is punctured by another downlink control channel (a downlink control channel that schedules a PDCCH candidate for transmitting a UL grant). When the base station sends the PDSCH, mapping PDSCH data according to the scheduling information, and punching the PDSCH by using the DCI on physical resources occupied by the PDCCH candidate for transmitting the UL grant.

As shown in fig. 5, the part in the circle is punctured by PDCCH (This part is punctured by PDCCH); in the figure, "region" indicates a region, and "Slot n" and "Slot n + 1" indicate adjacent two slots.

Example 5: suppose that the base station configures N CORESET for the terminal, and sends DL assignment for scheduling unicast downlink data of the terminal and DL assignment for scheduling broadcast downlink data of the terminal in the same search space in the same CORESET. The DCI added CRC used for scheduling the unicast downlink data is scrambled through C-RNTI or CS-RNTI, and the DCI added CRC used for scheduling the broadcast downlink data is scrambled through SI-RNTI or P-RNTI or RA-RNTI and the like. The resources occupied by the PDSCH scheduled by the unicast DL assignment overlap with the physical resources occupied by the PDCCH candidate transmitting the broadcast downlink data DL assignment. The terminal receives the unicast PDSCH according to the scheduling information of the DCI, and knows that the overlapping position is punctured by another downlink control channel (a PDCCH candidate downlink control channel for scheduling the transmission of the broadcast downlink data DL assignment). When the base station sends the unicast PDSCH, mapping unicast PDSCH data according to the scheduling information, and punching the PDSCH by using the downlink control information on the physical resource occupied by the PDCCH candidate for transmitting the broadcast data DL assignment.

As shown in fig. 6, the part in the circle is punctured by PDCCH (This part is punctured by PDCCH); in the figure, "region" indicates a region, "Slot n" and "Slot n + 1" indicate two adjacent time slots, PDSCH1 indicates a Unicast PDSCH, and PDSCH2 indicates a Broadcast PDSCH.

Example 6: suppose that the base station configures N CORESET for the terminal, and sends DL assignment for scheduling unicast downlink data of the terminal and DL assignment for scheduling broadcast downlink data of the terminal in the same search space in the same CORESET. The DCI added CRC used for scheduling the unicast downlink data is scrambled through C-RNTI or CS-RNTI, and the DCI added CRC used for scheduling the broadcast downlink data is scrambled through SI-RNTI or P-RNTI or RA-RNTI and the like. The resources occupied by the PDSCH scheduled by the broadcast DL assignment overlap with the physical resources occupied by the PDCCH candidate transmitting the unicast downlink data DL assignment. The terminal receives the broadcast PDSCH according to the scheduling information of the DCI, and knows that the overlapping position is punctured by another downlink control channel (a PDCCH candidate downlink control channel for scheduling unicast downlink data DL assignment). When the base station sends the broadcast PDSCH, mapping the broadcast PDSCH data according to the scheduling information, and punching the PDSCH by using the downlink control information on the physical resource occupied by the PDCCH candidate for transmitting the unicast data DL assignment.

As shown in fig. 7, the part in the circle is punctured by PDCCH (This part is punctured by PDCCH); in the figure, "region" indicates a region, "Slot n" and "Slot n + 1" indicate two adjacent time slots, PDSCH1 indicates Broadcast PDSCH, and PDSCH2 indicates Unicast PDSCH.

Example 7: for example 4-example 6, the DCI scheduling the terminal unicast PDSCH and the DCI scheduling the PUSCH and/or the DCI scheduling the broadcast multicast data may be transmitted in one CORESET configured by the base station for the terminal, or may be transmitted in multiple CORESETs configured by the base station for the terminal. Likewise, three different DCIs may be transmitted in one search space or in different search spaces.

From the above, the scheme provided by the embodiment of the present invention is mainly as follows: when the resource position used by PDSCH transmission is overlapped with the resource position occupied by other PDCCH which does not schedule the PDSCH, the terminal and the base station adopt the same processing method to map PDSCH data;

the method specifically comprises the following steps: and performing rate matching on the PDSCH around resource positions occupied by other PDCCHs which do not schedule the PDSCH or performing punching on the PDCCHs which do not schedule the PDSCH by the other PDCCHs which do not schedule the PDSCH.

The scheme provided by the embodiment of the invention can ensure that the base station and the terminal have the same understanding when the positions of the PDSCH and the PDCCH resources are overlapped, and reduce the scheduling limitation of the base station side.

The terminal provided by the embodiment of the invention adopts the same processing mode as that of a base station to map PDSCH data when the resource position used by the transmission of the PDSCH of the terminal is overlapped with the resource position occupied by the PDCCH of other physical downlink control channels of the non-scheduling PDSCH of the terminal; the base station and the terminal have the same understanding when the positions of the PDSCH and the PDCCH resources are overlapped, and the scheduling limitation of the base station side is reduced.

As shown in fig. 8, the terminal provided in the embodiment of the present invention includes:

a processor 81; and a memory 83 connected to the processor 81 through a bus interface 82, wherein the memory 83 is used for storing programs and data used by the processor 81 in executing operations, and when the processor 81 calls and executes the programs and data stored in the memory 83, the following processes are executed:

The terminal in the embodiment of the present invention may further include a transceiver 84, which is not limited herein.

Among other things, the transceiver 84 is coupled to the bus interface 82 for receiving and transmitting data under the control of the processor 81.

It should be noted that in fig. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 81 and various circuits represented by memory 83 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 84 may be a plurality 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 85 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 81 is responsible for managing the bus architecture and general processing, and the memory 83 may store data used by the processor 81 in performing operations.

Those skilled in the art will appreciate that all or part of the steps for implementing the above embodiments may be performed by hardware, or may be instructed to be performed by associated hardware by a computer program that includes instructions for performing some or all of the steps of the above methods; and the computer program may be stored in a readable storage medium, which may be any form of storage medium.

In the embodiment of the present invention, two examples are provided for "mapping PDSCH data in the same processing manner as that of the base station": the processor is specifically configured to: in an example one, performing rate matching on the PDSCH around resource positions occupied by PDCCHs of other non-scheduled PDSCHs; or in example two, the PDSCH is punctured by using the PDCCH of the other non-scheduled PDSCH.

And the preset RNTI is the RNTI related to the terminal scheduling.

The implementation embodiments of the channel transmission method at the terminal side are all applicable to the embodiment of the terminal, and the same technical effects can be achieved.

The base station provided by the embodiment of the invention adopts the same processing mode as the terminal to map the PDSCH data when the resource position used by the transmission of the PDSCH of the terminal is overlapped with the resource position occupied by the PDCCH of other physical downlink control channels of the non-scheduling PDSCH of the terminal; the base station and the terminal have the same understanding when the positions of the PDSCH and the PDCCH resources are overlapped, and the scheduling limitation of the base station side is reduced.

Specifically, as shown in fig. 9, the base station of the embodiment of the present invention includes:

a processor 91; and a memory 93 connected to the processor 91 through a bus interface 92, wherein the memory 93 is used for storing programs and data used by the processor 91 in executing operations, and when the processor 91 calls and executes the programs and data stored in the memory 93, the following processes are performed:

The base station in the embodiment of the present invention may further include a transceiver 94, which is not limited herein.

Among other things, a transceiver 94 is connected to the bus interface 92 for receiving and transmitting data under the control of the processor 91.

It should be noted that in fig. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 91 and various circuits of memory represented by memory 93 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 94 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 91 is responsible for managing the bus architecture and general processing, and the memory 93 may store data used by the processor 91 in performing operations.

In the embodiment of the present invention, two examples are provided for "mapping PDSCH data in the same processing manner as that of the terminal: the processor is specifically configured to: in an example one, performing rate matching on the PDSCH around resource positions occupied by PDCCHs of other non-scheduled PDSCHs; or in example two, the PDSCH is punctured by using the PDCCH of the other non-scheduled PDSCH.

The implementation embodiments of the channel transmission method at the base station side are all applicable to the embodiment of the base station, and the same technical effects can be achieved.

An embodiment of the present invention further 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 at the terminal side; or the program is executed by a processor to implement the steps of the channel transmission method on the base station side described above.

Correspondingly, the implementation embodiments of the channel transmission method at the terminal side or the base station side are all applicable to the embodiment of the computer-readable storage medium, and the same technical effects can be achieved.

An embodiment of the present invention further provides a channel transmission apparatus, applied to a terminal, as shown in fig. 10, including:

the first processing module 101 is configured to map PDSCH data in the same processing manner as that of the base station when a resource location used for transmission of the PDSCH of the terminal overlaps with a resource location occupied by a PDCCH of another PDCCH of the terminal, which is not scheduling the PDSCH.

The channel transmission device provided by the embodiment of the invention adopts the same processing mode as that of a base station to map PDSCH data when the resource position used by the transmission of the PDSCH of the terminal is overlapped with the resource position occupied by the PDCCH of other physical downlink control channels of the non-scheduling PDSCH of the terminal; the base station and the terminal have the same understanding when the positions of the PDSCH and the PDCCH resources are overlapped, and the scheduling limitation of the base station side is reduced.

In the embodiment of the present invention, two examples are provided for "mapping PDSCH data in the same processing manner as that of the base station": the first processing module comprises: a first processing sub-module, configured to perform rate matching on resource locations occupied by the PDSCH around other PDCCHs not scheduling the PDSCH in an example one; or in example two, the PDSCH is punctured by using the PDCCH of the other non-scheduled PDSCH.

And the preset RNTI is the RNTI related to the terminal scheduling.

The implementation embodiments of the channel transmission method at the terminal side are all applicable to the embodiment of the channel transmission device, and the same technical effects can be achieved.

An embodiment of the present invention further provides a channel transmission apparatus, applied to a base station, as shown in fig. 11, including:

the second processing module 111 is configured to map PDSCH data in the same processing manner as the terminal when a resource location used for transmission of a PDSCH on a physical downlink shared channel of the terminal overlaps with a resource location occupied by a PDCCH on another PDCCH on which the PDSCH is not scheduled.

The channel transmission device provided by the embodiment of the invention adopts the same processing mode as that of the terminal to map PDSCH data when the resource position used by the transmission of the PDSCH of the physical downlink shared channel of the terminal is overlapped with the resource position occupied by the PDCCH of other physical downlink control channels which do not schedule the PDSCH of the terminal; the base station and the terminal have the same understanding when the positions of the PDSCH and the PDCCH resources are overlapped, and the scheduling limitation of the base station side is reduced.

In the embodiment of the present invention, two examples are provided for "mapping PDSCH data in the same processing manner as that of the terminal: the second processing module comprises: a second processing sub-module, configured to perform rate matching on resource locations occupied by the PDSCH around other PDCCHs not scheduling the PDSCH in an example one; or in example two, the PDSCH is punctured by using the PDCCH of the other non-scheduled PDSCH.

The implementation embodiments of the channel transmission method on the base station side are all applicable to the embodiment of the channel transmission device, and the same technical effects can be achieved.

It should be noted that many of the functional components described in this specification are referred to as modules/sub-modules in order to more particularly emphasize their implementation independence.

In embodiments of the invention, the modules/sub-modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.

Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within the modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.

When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. A channel transmission method applied to a terminal is characterized by comprising the following steps:

when the resource position used by the transmission of the Physical Downlink Shared Channel (PDSCH) of the terminal is overlapped with the resource position occupied by the Physical Downlink Control Channel (PDCCH) of other non-scheduling PDSCH of the terminal, mapping PDSCH data by adopting the same processing mode as that of a base station;

the mapping of the PDSCH data by the same processing mode as that of the base station comprises the following steps:

2. The channel transmission method according to claim 1, wherein rate matching the PDSCH around resource locations occupied by other PDCCHs not scheduling the PDSCH comprises:

3. The channel transmission method according to claim 2, wherein the predetermined RNTI is an RNTI related to scheduling of the terminal.

4. The channel transmission method according to claim 2, wherein the PDCCH not scheduling the PDSCH is a downlink control channel transmitted by a base station for scheduling other data transmissions of the terminal.

5. The channel transmission method according to claim 2, wherein the resource location of the PDSCH overlaps with one or more CORESET configured for the terminal by higher layer signaling, and other PDCCHs not scheduling the PDSCH are transmitted within the one or more CORESET.

6. The channel transmission method according to claim 1 or 5, wherein the other PDCCHs not scheduling the PDSCH are transmitted within the same CORESET in which the PDCCH scheduling the PDSCH is transmitted, or are transmitted within other CORESETs of the terminal.

7. The channel transmission method according to claim 6, wherein the PDCCH that schedules the PDSCH is transmitted in a same search space as the PDCCH that schedules the PDSCH or in a different search space when the PDCCH that does not schedule the PDSCH is transmitted in the same CORESET in which the PDCCH that schedules the PDSCH is transmitted.

8. The channel transmission method according to claim 1, wherein puncturing the PDSCH using the PDCCH of the other non-scheduled PDSCH comprises:

9. A channel transmission method applied to a base station is characterized by comprising the following steps:

when the resource position used by the transmission of the Physical Downlink Shared Channel (PDSCH) of the terminal is overlapped with the resource position occupied by the Physical Downlink Control Channel (PDCCH) of other non-scheduling PDSCH of the terminal, mapping PDSCH data by adopting the same processing mode as the terminal;

the mapping of the PDSCH data in the same processing manner as the terminal includes:

10. The channel transmission method according to claim 9, wherein rate matching the PDSCH around resource locations occupied by other PDCCHs not scheduling the PDSCH comprises:

11. The channel transmission method according to claim 10, wherein the PDCCH not scheduling the PDSCH is a downlink control channel transmitted by a base station for scheduling other data transmissions of the terminal.

12. The channel transmission method according to claim 10, wherein the resource location of the PDSCH overlaps with one or more control resource sets, CORESET, configured for the terminal by higher layer signaling, and other PDCCHs not scheduling the PDSCH are transmitted within the one or more CORESET.

13. The channel transmission method according to claim 9 or 12, wherein the other PDCCHs not scheduling the PDSCH are transmitted within the same CORESET used for transmitting the PDCCH scheduling the PDSCH or within other CORESETs of the terminal.

14. The channel transmission method according to claim 13, wherein the PDCCH scheduling the PDSCH is transmitted in a same search space or in a different search space than the PDCCH scheduling the PDSCH when the other PDCCHs not scheduling the PDSCH are transmitted in a same CORESET used for transmitting the PDCCH scheduling the PDSCH.

15. The channel transmission method according to claim 9, wherein puncturing the PDSCH using the PDCCH of the other non-scheduled PDSCH comprises:

16. The channel transmission method according to claim 15, wherein the puncturing the PDSCH in mapping the PDCCH of the other non-scheduled PDSCH comprises:

17. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:

wherein the processor is specifically configured to:

18. The terminal of claim 17, wherein performing rate matching on the PDSCH around resource locations occupied by other PDCCHs not scheduling the PDSCH comprises:

19. The terminal of claim 18, wherein the predetermined RNTI is an RNTI associated with scheduling of the terminal.

20. The terminal of claim 18, wherein the other PDCCHs not scheduling the PDSCH are downlink control channels transmitted by a base station for scheduling other data transmissions of the terminal.

21. The terminal of claim 18, wherein the resource locations of the PDSCH overlap with one or more CORESET configured for the terminal by higher layer signaling, and other PDCCHs not scheduling the PDSCH are transmitted within the one or more CORESET.

22. The terminal of claim 17 or 21, wherein the other PDCCHs not scheduled for the PDSCH are transmitted within the same CORESET used for transmitting the PDCCH scheduled for the PDSCH or within other CORESETs of the terminal.

23. The terminal of claim 22, wherein the PDCCH scheduling the PDSCH is transmitted in a same search space or in a different search space than the PDCCH scheduling the PDSCH when the PDCCH not scheduling the PDSCH is transmitted in a same CORESET used for transmitting the PDCCH scheduling the PDSCH.

24. The terminal of claim 17, wherein puncturing the PDSCH using the PDCCH for the other non-scheduled PDSCH comprises:

25. A base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:

wherein the processor is specifically configured to:

26. The base station of claim 25, wherein performing rate matching on the PDSCH around resource locations occupied by other PDCCHs not scheduling the PDSCH comprises:

27. The base station of claim 26, wherein the other PDCCHs not scheduling the PDSCH is a downlink control channel transmitted by the base station for scheduling other data transmissions by the terminal.

28. The base station of claim 26, wherein the resource locations of the PDSCH overlap with one or more control resource sets, CORESET, configured for the terminal by higher layer signaling, and other PDCCHs not scheduling the PDSCH are transmitted within the one or more CORESET.

29. The base station according to claim 25 or 28, wherein the other PDCCHs not scheduled for the PDSCH are transmitted within the same CORESET used for transmitting the PDCCH scheduled for the PDSCH or within other CORESETs of the terminal.

30. The base station of claim 29, wherein the PDCCH not scheduling the PDSCH is transmitted in a same search space or in a different search space than the PDCCH scheduling the PDSCH when the PDCCH is transmitted in a same CORESET that is used to transmit the PDCCH scheduling the PDSCH.

31. The base station of claim 25, wherein puncturing the PDSCH using the PDCCH for the other non-scheduled PDSCH comprises:

32. The base station of claim 31, wherein the puncturing the PDSCH in mapping the PDCCH of the other non-scheduled PDSCH comprises:

33. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the channel transmission method according to any one of claims 1 to 8; or

The program when executed by a processor implementing the steps of the channel transmission method as claimed in any one of claims 9 to 16.

34. A channel transmission apparatus applied to a terminal, comprising:

the first processing module is used for mapping PDSCH data by adopting the same processing mode as a base station when resource positions used for transmitting the PDSCH of the terminal are overlapped with resource positions occupied by PDCCH of other physical downlink control channels which do not schedule the PDSCH of the terminal;

wherein the first processing module comprises:

35. A channel transmission apparatus applied to a base station, comprising:

the second processing module is used for mapping the PDSCH data by adopting the same processing mode as the terminal when the resource position used for transmitting the PDSCH of the terminal is overlapped with the resource position occupied by the PDCCH of other non-scheduling PDSCH of the terminal;

wherein the second processing module comprises: