CN110839286A - Data transmission method, device, base station, terminal and computer readable storage medium - Google Patents

Data transmission method, device, base station, terminal and computer readable storage medium Download PDF

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Publication number
CN110839286A
CN110839286A CN201810936964.5A CN201810936964A CN110839286A CN 110839286 A CN110839286 A CN 110839286A CN 201810936964 A CN201810936964 A CN 201810936964A CN 110839286 A CN110839286 A CN 110839286A
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China
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time domain
coreset
bit
data transmission
terminal
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CN110839286B (en
Inventor
王磊
艾托尼
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Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201810936964.5A priority Critical patent/CN110839286B/en
Priority to PCT/CN2019/101085 priority patent/WO2020035060A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a data transmission method, a device, a base station, a terminal and a computer readable storage medium, wherein the data transmission method comprises the following steps: configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling, and sending the time domain pattern information to a corresponding terminal; sending downlink data according to the time domain pattern information; the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission and/or a second time domain position which cannot be used for downlink data transmission by the CORESET. According to the scheme, the CORESET used for rate matching can be used for transmission of the PDSCH as required, the terminal can monitor the PDCCH in the CORESET, scheduling limitation is reduced, and the problem that limitation is caused to terminal scheduling after the CORESET is configured to be RMR in the prior art is solved.

Description

Data transmission method, device, base station, terminal and computer readable storage medium
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, an apparatus, a base station, a terminal, and a computer-readable storage medium.
Background
In a 5G system, a base station configures a plurality of control resource sets, CORESET, for a terminal, and one CORESET may be associated with a plurality of search spaces having different periods. In order to improve the spectrum utilization efficiency, the CORESET which does not transmit the downlink control channel can be used for transmitting the data channel; meanwhile, in order to simplify the complexity of the terminal in rate matching of the data channel, the terminal is allowed to perform rate matching around a specific CORESET. However, once the core set is configured as a rate matching resource, the terminal cannot listen to the downlink control channel in the core set, which causes a scheduling limitation.
Specifically, the CORESET may be configured as a Rate Matching Resource (RMR) through higher layer signaling. The resources may be configured by the base station through higher layer signaling into different types of RMRs, i.e., semi-static RMR and dynamic RMR. The semi-static RMR means that downlink data (including a downlink data channel PDSCH and a downlink control channel PDCCH) cannot be transmitted in the resource, and the dynamic RMR means that it is only possible to dynamically indicate whether the resource can be used for PDSCH transmission through L1 signaling (downlink control information DCI carried on the PDCCH).
For semi-statically configured RMR, however, the terminal cannot listen to the downlink control channel in the CORESET with which it has any resource conflicts. This means that once the core set is configured as a semi-static RMR, the terminal will always be unable to listen to the PDCCH and transmit PDSCH within the core set; this will cause a great limitation to the scheduling of the terminal.
Disclosure of Invention
The invention aims to provide a data transmission method, a data transmission device, a base station, a terminal and a computer readable storage medium, and solves the problem that in the prior art, restriction is caused to terminal scheduling after CORESET is configured as RMR.
In order to solve the above technical problem, an embodiment of the present invention provides a data transmission method, applied to a base station, including:
configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling, and sending the time domain pattern information to a corresponding terminal;
sending downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
Optionally, the time domain pattern information is a bit pattern bitmap.
Optionally, each bit in the bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
Optionally, all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
Optionally, the bit pattern bitmap includes N bits, where N is a positive integer greater than or equal to 1.
Optionally, a bit in the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The embodiment of the invention also provides a data transmission method, which is applied to a terminal and comprises the following steps:
receiving time domain pattern information configured for a control resource set CORESET for rate matching by a base station through a high-level signaling;
receiving downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
Optionally, the time domain pattern information is a bit pattern bitmap.
Optionally, each bit in the bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
Optionally, all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
Optionally, the bit pattern bitmap includes N bits, where N is a positive integer greater than or equal to 1.
Optionally, a bit in the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The embodiment of the invention also provides a base station, which comprises a memory, a processor, a transceiver and a computer program which is stored on the memory and can run on the processor; the processor implements the following steps when executing the program:
configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling, and sending the time domain pattern information to a corresponding terminal through the transceiver;
sending downlink data through the transceiver according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
Optionally, the time domain pattern information is a bit pattern bitmap.
Optionally, each bit in the bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
Optionally, all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
Optionally, the bit pattern bitmap includes N bits, where N is a positive integer greater than or equal to 1.
Optionally, a bit in the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The embodiment of the invention also provides a terminal, which comprises a memory, a processor, a transceiver and a computer program which is stored on the memory and can run on the processor; the processor implements the following steps when executing the program:
receiving, by the transceiver, time domain pattern information configured by a base station for a control resource set, CORESET, for rate matching through a high-level signaling;
receiving downlink data through the transceiver according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
Optionally, the time domain pattern information is a bit pattern bitmap.
Optionally, each bit in the bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
Optionally, all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
Optionally, the bit pattern bitmap includes N bits, where N is a positive integer greater than or equal to 1.
Optionally, a bit in the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
Embodiments of the present invention further provide 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 data transmission method described above.
The embodiment of the invention also provides a data transmission device, which is applied to a base station and comprises the following components:
the first processing module is used for configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling and sending the time domain pattern information to a corresponding terminal;
the second processing module is used for sending downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
Optionally, the time domain pattern information is a bit pattern bitmap.
Optionally, each bit in the bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
Optionally, all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
Optionally, the bit pattern bitmap includes N bits, where N is a positive integer greater than or equal to 1.
Optionally, a bit in the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The embodiment of the invention also provides a data transmission device, which is applied to a terminal and comprises the following components:
the third processing module is used for receiving time domain pattern information configured by the base station for a control resource set CORESET used for rate matching through a high-level signaling;
the fourth processing module is used for receiving downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
Optionally, the time domain pattern information is a bit pattern bitmap.
Optionally, each bit in the bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
Optionally, all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
Optionally, the bit pattern bitmap includes N bits, where N is a positive integer greater than or equal to 1.
Optionally, a bit in the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The technical scheme of the invention has the following beneficial effects:
in the scheme, the data transmission method configures time domain pattern information for a control resource set CORESET for rate matching by utilizing a high-level signaling, and sends the time domain pattern information to a corresponding terminal; sending downlink data according to the time domain pattern information; the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission; the CORESET used for rate matching can be used for transmission of the PDSCH according to needs, and the terminal can monitor the PDCCH in the CORESET, so that scheduling limitation is reduced, and the problem that limitation is caused to terminal scheduling after the CORESET is configured to be RMR in the prior art is solved.
Drawings
Fig. 1 is a first flowchart illustrating a data transmission method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a data transmission method according to an embodiment of the present invention;
fig. 3 is a first diagram illustrating a specific implementation of a data transmission method according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a specific implementation of a data transmission method according to an embodiment of the present invention;
fig. 5 is a third schematic diagram of a specific implementation of the data transmission method according to the embodiment of the present invention;
fig. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
FIG. 8 is a first schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a data transmission 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.
The present invention provides a data transmission method for solving the problem of restriction on terminal scheduling after the CORESET is configured as RMR in the prior art, as shown in fig. 1, the method is applied to a base station, and includes:
step 11: configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling, and sending the time domain pattern information to a corresponding terminal;
step 12: sending downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
The CORESET may be one or more, and is not limited herein.
The data transmission method provided by the embodiment of the invention configures time domain pattern information for a control resource set CORESET for rate matching by utilizing a high-level signaling, and sends the time domain pattern information to a corresponding terminal; sending downlink data according to the time domain pattern information; the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission; the CORESET used for rate matching can be used for transmission of the PDSCH according to needs, and the terminal can monitor the PDCCH in the CORESET, so that scheduling limitation is reduced, and the problem that limitation is caused to terminal scheduling after the CORESET is configured to be RMR in the prior art is solved.
In the embodiment of the present invention, the time domain pattern information may be a bit pattern bitmap. Specifically, one bitmap corresponds to one CORESET, and different CORESETs correspond to the same or different bitmaps.
Specifically, each bit in the bit pattern bitmap may correspond to a time domain resource unit; wherein the time domain resource unit may include at least one of the following time domain resources: one slot; the minimum listening period in all search spaces related to the CORESET; the maximum listening period in all search spaces associated with the CORESET.
Wherein all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
In the embodiment of the present invention, the bit pattern bitmap may include N bits, where N is a positive integer greater than or equal to 1.
Specifically, a bit of the bit pattern bitmap is 1, which indicates that the CORESET in the time domain position corresponding to the bit can be used for downlink data channel PDSCH transmission, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit of 0 in the bit pattern bitmap may indicate that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
An embodiment of the present invention further provides a data transmission method, as shown in fig. 2, applied to a terminal, including:
step 21: receiving time domain pattern information configured for a control resource set CORESET for rate matching by a base station through a high-level signaling;
step 22: receiving downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
The CORESET may be one or more, and is not limited herein.
The data transmission method provided by the embodiment of the invention receives time domain pattern information configured for a control resource set CORESET for rate matching by a base station through a high-level signaling; receiving downlink data according to the time domain pattern information; the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission; the CORESET used for rate matching can be used for transmission of the PDSCH according to needs, and the terminal can monitor the PDCCH in the CORESET, so that scheduling limitation is reduced, and the problem that limitation is caused to terminal scheduling after the CORESET is configured to be RMR in the prior art is solved.
In the embodiment of the present invention, the time domain pattern information may be a bit pattern bitmap. Specifically, one bitmap corresponds to one CORESET, and different CORESETs correspond to the same or different bitmaps.
Specifically, each bit in the bit pattern bitmap may correspond to a time domain resource unit; wherein the time domain resource unit may include at least one of the following time domain resources: one slot; the minimum listening period in all search spaces related to the CORESET; the maximum listening period in all search spaces associated with the CORESET.
Wherein all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
In the embodiment of the present invention, the bit pattern bitmap may include N bits, where N is a positive integer greater than or equal to 1.
Specifically, a bit of the bit pattern bitmap is 1, which indicates that the CORESET in the time domain position corresponding to the bit can be used for downlink data channel PDSCH transmission, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit of 0 in the bit pattern bitmap may indicate that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The data transmission method provided by the embodiment of the present invention is further described below with reference to the base station and the terminal.
In view of the foregoing technical problems, an embodiment of the present invention provides a data transmission method, which mainly configures time domain pattern information for a CORESET used for rate matching, and indicates (by means of a bitmap) which time domain positions the CORESET can be used for downlink data transmission, and/or which time domain positions the CORESET cannot be used for downlink data transmission. And the base station transmits downlink data according to the configured time domain pattern information, and the terminal receives the downlink data according to the configured time domain pattern information.
Wherein, the base station side: and the base station configures time domain pattern information for the CORESET for rate matching through high-layer signaling.
A specific base station may configure a bitmap for the core set for rate matching via a radio resource control signal RRC signaling, indicating in which time domain locations (within time domain resource units) the corresponding core set is available for downlink data transmission, and/or in which time domain locations (within time domain resource units) the corresponding core set is unavailable for downlink data transmission.
Wherein the Bitmap comprises N bits, and N is a positive integer greater than or equal to 1;
a bit in a Bitmap is 1, which means that the CORESET can be used for PDSCH transmission in a time domain position (in a time domain resource unit) corresponding to the bit, and a terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain resource unit corresponding to the bit; a bit of 0 in the bitmap indicates that the CORESET cannot be used for PDSCH transmission in the time domain position (in the time domain resource unit) corresponding to the bit, the terminal cannot monitor the downlink control channel PDCCH in the CORESET in the time domain resource unit corresponding to the bit, and the PDSCH needs to perform rate matching around the whole CORESET (the CORESET in the time domain resource unit corresponding to the bit).
-each bit in the bitmap corresponds to a time domain resource unit.
Wherein, the one time domain resource unit may be one slot;
or, the time domain resource unit may be the minimum listening period in all search spaces related to the CORESET; the search space related to the CORESET is a search space transmitted in the CORESET;
or, the time domain resource unit may be a maximum listening period in all search spaces related to the CORESET; the search space related to the CORESET is a search space transmitted in the CORESET;
but are not limited thereto and are only illustrative.
A terminal side: a terminal receives time domain pattern information which is configured by a base station through high-level signaling and is used for CORESET of rate matching;
the specific time domain pattern information may be a bitmap indicating which time domain positions (within time domain resource units) the CORESET is available for downlink data transmission and/or which time domain positions (within time domain resource units) is unavailable for downlink data transmission.
-each bit in the bitmap corresponds to a time domain resource unit.
Wherein, the one time domain resource unit may be one slot;
or, the time domain resource unit may be the minimum listening period in all search spaces related to the CORESET; the search space related to the CORESET is a search space transmitted in the CORESET;
or, the time domain resource unit may be a maximum listening period in all search spaces related to the CORESET; the search space related to the CORESET is a search space transmitted in the CORESET;
but are not limited thereto and are only illustrative.
-the Bitmap comprises N bits, N being a positive integer greater than or equal to 1;
when the bit in the bitmap is 0, it indicates that the CORESET in the time domain resource unit corresponding to the bit cannot be used for PDSCH transmission, and correspondingly, the terminal cannot monitor a downlink control channel PDCCH in the CORESET in the time domain resource unit corresponding to the bit, and the PDSCH needs to perform rate matching around the whole CORESET (the CORESET in the time domain resource unit corresponding to the bit); when the bit in the bitmap is 1, it indicates that the bit is the CORESET in the corresponding time domain resource unit and can be used for PDSCH transmission, and correspondingly, the terminal can monitor the downlink control channel PDCCH in the CORESET in the time domain resource unit corresponding to the bit.
The data transmission method provided by the embodiment of the present invention is illustrated below.
Example 1:
the base station configures 3 CORESET for the terminal UE1 through RRC signaling, namely CORESET1, CORESET2 and CORESET 3; and 6 search spaces SS #1, SS #2, SS #3, SS #4, SS #5, SS #6 are arranged. The monitoring periods corresponding to the 6 search spaces are { P1, P2, P3, P4, P5 and P6}, respectively. The correspondence between the search space and the CORESET is that SS #1 and SS #2 are transported within CORESET1, SS #3 and SS #4 are transported within CORESET2, and SS #5 and SS #6 are transported within CORESET 3.
Suppose that the base station configures the core set1 as a rate matching resource through high layer signaling RRC signaling. Meanwhile, the time domain pattern information of the CORESET1 is configured, and the time domain pattern information is embodied as a bitmap with the length of N. In this example, assume that N is 10. Each bit in the bitmap corresponds to one time domain resource unit, and in this example, it is assumed that the time domain resource unit is 1 slot; the CORESET (CORESET1) in the slot corresponding to the bit of bit 1 in bitmap can be used for downlink control channel transmission, and the terminal needs to monitor the downlink control channel in the CORESET1 in the slot; the CORESET (CORESET1) cannot be used for downlink control channel transmission in the slot corresponding to the bit of bit 0 in the bitmap, and the terminal cannot monitor the downlink control channel in the CORESET1 in the slot. Assuming that the period of SS #1 is 1 slot, the period of SS #2 is 5 slots, and assuming that bitmap is 1001001001, as shown in fig. 3, CORESET1 located in slots #0, 3, 6, and 9 may be used for transmission of PDSCH, and the terminal needs to monitor its search space on PDCCH monitonocdose (PDCCH monitoring occasion) in these slots. The CORESET1 can be used for transmission of neither PDSCH nor PDCCH in the remaining slots. CORESET1 circled in fig. 3 indicates that downstream data transmission is possible, CORESET1 marked with an "x" indicates that downstream data transmission is not possible, and a indicates 1 slot.
The bitmap acts periodically on every 10 slots.
Example 2:
the base station configures 3 CORESET for the terminal UE1 through RRC signaling, namely CORESET1, CORESET2 and CORESET 3; and 6 search spaces SS #1, SS #2, SS #3, SS #4, SS #5, SS #6 are arranged. The monitoring periods corresponding to the 6 search spaces are { P1, P2, P3, P4, P5 and P6}, respectively. The correspondence between the search space and the CORESET is that SS #1 and SS #2 are transported within CORESET1, SS #3 and SS #4 are transported within CORESET2, and SS #5 and SS #6 are transported within CORESET 3.
Suppose that the base station configures the core set1 as a rate matching resource through high layer signaling RRC signaling. Meanwhile, the time domain pattern information of the CORESET1 is configured, and the time domain pattern information is embodied as a bitmap with the length of N. In this example, assume that N is 5. Each bit in the bitmap corresponds to one time domain resource unit, and in this example, it is assumed that the time domain resource unit is the slot number included in the shortest period in the search space transmitted in the CORESET 1; the CORESET (CORESET1) in the slots corresponding to the bit of 1 in the bitmap can be used for the transmission of the downlink control channel, and the terminal needs to monitor the downlink control channel in the CORESET1 in the slot; the CORESET (CORESET1) in the slots corresponding to the bit of 0 in the bitmap cannot be used for downlink control channel transmission, and the terminal cannot monitor the downlink control channel in the CORESET1 in the slot. Suppose that the period of SS #1 is 2 slots, and the period of SS #2 is 5 slots, in this example, each bit corresponds to one time domain resource unit, which is two consecutive slots. Assuming that bitmap is 10010, as shown in fig. 4, CORESET1 located in slots #0, slot #1, slot #6, and slot #7 can be used for PDSCH transmission, and the terminal needs to monitor its search space on PDCCH monitoring interference in these slots. The CORESET1 can be used for transmission of neither PDSCH nor PDCCH in the remaining slots. CORESET1 with circles in fig. 4 indicates that downstream data can be transmitted, CORESET1 with a "x" symbol indicates that downstream data cannot be transmitted, and a indicates 1 slot.
The bitmap acts periodically on every 10 slots.
Example 3:
the base station configures 3 CORESET for the terminal UE1 through RRC signaling, namely CORESET1, CORESET2 and CORESET 3; and 6 search spaces SS #1, SS #2, SS #3, SS #4, SS #5, SS #6 are arranged. The monitoring periods corresponding to the 6 search spaces are { P1, P2, P3, P4, P5 and P6}, respectively. The correspondence between the search space and the CORESET is that SS #1 and SS #2 are transported within CORESET1, SS #3 and SS #4 are transported within CORESET2, and SS #5 and SS #6 are transported within CORESET 3.
Suppose that the base station configures the core set1 as a rate matching resource through high layer signaling RRC signaling. Meanwhile, the time domain pattern information of the CORESET1 is configured, and the time domain pattern information is embodied as a bitmap with the length of N. In this example, assume that N is 5. Each bit in the bitmap corresponds to one time domain resource unit, and in this example, it is assumed that the time domain resource unit is a slot number included in a maximum period in a search space transmitted in CORESET 1; the CORESET (CORESET1) in the slots corresponding to the bit of 1 in the bitmap can be used for the transmission of the downlink control channel, and the terminal needs to monitor the downlink control channel in the CORESET1 in the slot; the CORESET (CORESET1) in the slots corresponding to the bit of 0 in the bitmap cannot be used for downlink control channel transmission, and the terminal cannot monitor the downlink control channel in the CORESET1 in the slot. Suppose that the period of SS #1 is 2 slots, and the period of SS #2 is 5 slots, in this example, each bit corresponds to one time domain resource unit which is continuous 5 slots. Assuming that bitmap is 10, as shown in fig. 5, CORESET1 appearing in slots #0 to #4 may be used for PDSCH transmission, and the terminal needs to monitor its search space on PDCCH monitoring interference in these slots. The CORESET1 can be used for transmission of neither PDSCH nor PDCCH in the remaining slots. CORESET1 circled in fig. 5 indicates that downstream data transmission is possible, CORESET1 marked with an "x" indicates that downstream data transmission is not possible, and a indicates 1 slot.
The bitmap acts periodically on every 10 slots.
It can be seen from the above that, the scheme provided in the embodiment of the present invention is mainly that the base station configures a bitmap for indicating a time domain pattern for the CORESET for rate matching, the base station transmits downlink data according to the bitmap, and the terminal receives the downlink data according to the bitmap. Wherein, the time domain resource granularity of each bit in the bitmap may be: 1 slot or the minimum listening period in all search spaces transmitted within the CORESET or the maximum listening period in all search spaces transmitted within the CORESET, but is not limited thereto.
The scheme provided by the embodiment of the invention can ensure that the CORESET used for rate matching can be used for the transmission of the PDSCH according to the requirement, and meanwhile, the terminal can monitor the PDCCH in the CORESET, thereby reducing the scheduling limitation.
The embodiment of the invention also provides a base station, which comprises a memory, a processor, a transceiver and a computer program which is stored on the memory and can run on the processor; the processor implements the following steps when executing the program:
configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling, and sending the time domain pattern information to a corresponding terminal through the transceiver;
sending downlink data through the transceiver according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
The base station provided by the embodiment of the invention configures time domain pattern information for a control resource set CORESET for rate matching by utilizing a high-level signaling, and sends the time domain pattern information to a corresponding terminal through the transceiver; sending downlink data through the transceiver according to the time domain pattern information; the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission; the CORESET used for rate matching can be used for transmission of the PDSCH according to needs, and the terminal can monitor the PDCCH in the CORESET, so that scheduling limitation is reduced, and the problem that limitation is caused to terminal scheduling after the CORESET is configured to be RMR in the prior art is solved.
Specifically, as shown in fig. 6, the base station of the embodiment of the present invention includes:
a processor 61; and a memory 63 connected to the processor 61 through a bus interface 62, wherein the memory 63 is used for storing programs and data used by the processor 61 in executing operations, and when the processor 61 calls and executes the programs and data stored in the memory 63, the following processes are executed:
configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling, and sending the time domain pattern information to a corresponding terminal through the transceiver 64;
sending downlink data through the transceiver 64 according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
Wherein a transceiver 64 is connected to the bus interface 62 for receiving and transmitting data under the control of the processor 61.
It should be noted that in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 61 and various circuits of memory represented by memory 63 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 64 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 61 is responsible for managing the bus architecture and general processing, and the memory 63 may store data used by the processor 61 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, the time domain pattern information may be a bit pattern bitmap.
Specifically, each bit in the bit pattern bitmap may correspond to a time domain resource unit; wherein the time domain resource unit may include at least one of the following time domain resources: one slot; the minimum listening period in all search spaces related to the CORESET; the maximum listening period in all search spaces associated with the CORESET.
Wherein all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
In the embodiment of the present invention, the bit pattern bitmap includes N bits, where N is a positive integer greater than or equal to 1.
Specifically, a bit of the bit pattern bitmap is 1, which indicates that the CORESET in the time domain position corresponding to the bit can be used for downlink data channel PDSCH transmission, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit of 0 in the bit pattern bitmap may indicate that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The implementation embodiments of the data transmission method on the base station side are all applicable to the embodiment of the base station, and the same technical effects can be achieved.
The embodiment of the invention also provides a terminal, which comprises a memory, a processor, a transceiver and a computer program which is stored on the memory and can run on the processor; the processor implements the following steps when executing the program:
receiving, by the transceiver, time domain pattern information configured by a base station for a control resource set, CORESET, for rate matching through a high-level signaling;
receiving downlink data through the transceiver according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
The terminal provided by the embodiment of the invention receives time domain pattern information configured for a control resource set CORESET for rate matching by a base station through a high-level signaling by utilizing the transceiver; receiving downlink data through the transceiver according to the time domain pattern information; the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission; the CORESET used for rate matching can be used for transmission of the PDSCH according to needs, and the terminal can monitor the PDCCH in the CORESET, so that scheduling limitation is reduced, and the problem that limitation is caused to terminal scheduling after the CORESET is configured to be RMR in the prior art is solved.
As shown in fig. 7, the terminal provided in the embodiment of the present invention includes:
a processor 71; and a memory 73 connected to the processor 71 through a bus interface 72, wherein the memory 73 is used for storing programs and data used by the processor 71 in executing operations, and when the processor 71 calls and executes the programs and data stored in the memory 73, the following processes are executed:
receiving, by the transceiver 74, time domain pattern information configured by the base station for a control resource set, CORESET, for rate matching through a high-level signaling;
receiving downlink data through the transceiver 74 according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
Wherein a transceiver 74 is connected to the bus interface 72 for receiving and transmitting data under control of the processor 71.
It should be noted that in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 71 and various circuits of memory represented by memory 73 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 74 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 75 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 71 is responsible for managing the bus architecture and general processing, and the memory 73 may store data used by the processor 71 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, the time domain pattern information may be a bit pattern bitmap.
Specifically, each bit in the bit pattern bitmap may correspond to a time domain resource unit; wherein the time domain resource unit may include at least one of the following time domain resources: one slot; the minimum listening period in all search spaces related to the CORESET; the maximum listening period in all search spaces associated with the CORESET.
Wherein all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
In the embodiment of the present invention, the bit pattern bitmap may include N bits, where N is a positive integer greater than or equal to 1.
Specifically, a bit of the bit pattern bitmap is 1, which indicates that the CORESET in the time domain position corresponding to the bit can be used for downlink data channel PDSCH transmission, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit of 0 in the bit pattern bitmap may indicate that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The implementation embodiments of the data transmission method at the terminal side are all applicable to the embodiment of the terminal, 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 data transmission method on the base station side; or
The program realizes the steps of the above-described terminal-side data transmission method when executed by a processor.
The implementation embodiments of the data transmission method on the base station side or the terminal side are all applicable to the embodiment of the data transmission device, and the same technical effects can be achieved.
An embodiment of the present invention further provides a data transmission apparatus, as shown in fig. 8, which is applied to a base station, and includes:
the first processing module 81 is configured to configure time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling, and send the time domain pattern information to a corresponding terminal;
a second processing module 82, configured to send downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
The data transmission device provided by the embodiment of the invention configures time domain pattern information for a control resource set CORESET for rate matching by utilizing a high-level signaling, and sends the time domain pattern information to a corresponding terminal; sending downlink data according to the time domain pattern information; the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission; the CORESET used for rate matching can be used for transmission of the PDSCH according to needs, and the terminal can monitor the PDCCH in the CORESET, so that scheduling limitation is reduced, and the problem that limitation is caused to terminal scheduling after the CORESET is configured to be RMR in the prior art is solved.
In the embodiment of the present invention, the time domain pattern information may be a bit pattern bitmap.
Specifically, each bit in the bit pattern bitmap may correspond to a time domain resource unit; wherein the time domain resource unit may include at least one of the following time domain resources: one slot; the minimum listening period in all search spaces related to the CORESET; the maximum listening period in all search spaces associated with the CORESET.
Wherein all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
In the embodiment of the present invention, the bit pattern bitmap may include N bits, where N is a positive integer greater than or equal to 1.
Specifically, a bit of the bit pattern bitmap is 1, which indicates that the CORESET in the time domain position corresponding to the bit can be used for downlink data channel PDSCH transmission, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit of 0 in the bit pattern bitmap may indicate that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The implementation embodiments of the data transmission method on the base station side are all applicable to the embodiment of the data transmission device, and the same technical effects can be achieved.
An embodiment of the present invention further provides a data transmission apparatus, as shown in fig. 9, which is applied to a terminal, and includes:
a third processing module 91, configured to receive time domain pattern information configured by the base station for a control resource set CORESET for rate matching through a high-level signaling;
a fourth processing module 92, configured to receive downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
The data transmission device provided by the embodiment of the invention receives time domain pattern information configured for a control resource set CORESET for rate matching through a high-level signaling by a base station; receiving downlink data according to the time domain pattern information; the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission; the CORESET used for rate matching can be used for transmission of the PDSCH according to needs, and the terminal can monitor the PDCCH in the CORESET, so that scheduling limitation is reduced, and the problem that limitation is caused to terminal scheduling after the CORESET is configured to be RMR in the prior art is solved.
In the embodiment of the present invention, the time domain pattern information may be a bit pattern bitmap.
Specifically, each bit in the bit pattern bitmap may correspond to a time domain resource unit; wherein the time domain resource unit may include at least one of the following time domain resources: one slot; the minimum listening period in all search spaces related to the CORESET; the maximum listening period in all search spaces associated with the CORESET.
Wherein all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
In the embodiment of the present invention, the bit pattern bitmap may include N bits, where N is a positive integer greater than or equal to 1.
Specifically, a bit of the bit pattern bitmap is 1, which indicates that the CORESET in the time domain position corresponding to the bit can be used for downlink data channel PDSCH transmission, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit of 0 in the bit pattern bitmap may indicate that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
The implementation embodiments of the data transmission method at the terminal side are all applicable to the embodiment of the data transmission device, and the same technical effects can be achieved.
It should be noted that many of the functional units described in this specification have been referred to as modules, in order to more particularly emphasize their implementation independence.
In embodiments of the present invention, 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 (31)

1. A data transmission method, applied to a base station, includes:
configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling, and sending the time domain pattern information to a corresponding terminal;
sending downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
2. The data transmission method according to claim 1, wherein the time domain pattern information is a bit pattern bitmap.
3. The data transmission method according to claim 2, wherein each bit in the bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
4. The data transmission method according to claim 3, wherein all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
5. The data transmission method according to claim 2, characterized in that said bit pattern bitmap comprises N bits, N being a positive integer greater than or equal to 1.
6. The data transmission method according to any one of claims 2 to 5, wherein a bit in the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
7. A data transmission method is applied to a terminal and comprises the following steps:
receiving time domain pattern information configured for a control resource set CORESET for rate matching by a base station through a high-level signaling;
receiving downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
8. The data transmission method according to claim 7, wherein the time domain pattern information is a bit pattern bitmap.
9. The data transmission method according to claim 8, wherein each bit in the bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
10. The data transmission method according to claim 9, wherein all search spaces related to the CORESET are all search spaces transmitted within the CORESET.
11. The data transmission method according to claim 8, characterized in that said bit pattern bitmap comprises N bits, N being a positive integer greater than or equal to 1.
12. The data transmission method according to any one of claims 8 to 11, wherein a bit in the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
13. A base station comprising a memory, a processor, a transceiver, and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:
configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling, and sending the time domain pattern information to a corresponding terminal through the transceiver;
sending downlink data through the transceiver according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
14. The base station of claim 13, wherein the time domain pattern information is a bit pattern bitmap.
15. The base station of claim 14, wherein each bit of the bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
16. The base station of claim 15, wherein all search spaces associated with the CORESET are all search spaces transmitted within the CORESET.
17. The base station according to claim 14, characterized in that said bit pattern bitmap comprises N bits, N being a positive integer greater than or equal to 1.
18. The base station according to any of claims 14 to 17, wherein a bit of the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
19. A terminal comprising a memory, a processor, a transceiver, and a computer program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:
receiving, by the transceiver, time domain pattern information configured by a base station for a control resource set, CORESET, for rate matching through a high-level signaling;
receiving downlink data through the transceiver according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
20. The terminal of claim 19, wherein the time domain pattern information is a bit pattern bitmap.
21. The terminal according to claim 20, wherein each bit of said bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
22. The terminal of claim 21, wherein all search spaces associated with the CORESET are all search spaces transmitted within the CORESET.
23. The terminal according to claim 20, characterized in that said bit pattern bitmap comprises N bits, N being a positive integer greater than or equal to 1.
24. The terminal according to any of claims 20 to 23, wherein a bit of the bit pattern bitmap is 1, which indicates that the CORESET can be used for downlink data channel PDSCH transmission in a time domain position corresponding to the bit, and the terminal can monitor a downlink control channel PDCCH in the CORESET in the time domain position corresponding to the bit;
a bit in the bit pattern bitmap is 0, which means that the CORESET cannot be used for PDSCH transmission in the time domain position corresponding to the bit, the terminal cannot monitor the PDCCH in the CORESET in the time domain position corresponding to the bit, and the base station performs rate matching on the PDSCH around the whole CORESET, so as to instruct the terminal to perform rate matching on the PDSCH around the whole CORESET.
25. 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 data transmission method according to any one of claims 1 to 6; or
The program implementing the steps of the data transmission method according to any one of claims 7 to 12 when executed by a processor.
26. A data transmission apparatus, applied to a base station, comprising:
the first processing module is used for configuring time domain pattern information for a control resource set CORESET for rate matching through a high-level signaling and sending the time domain pattern information to a corresponding terminal;
the second processing module is used for sending downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
27. The data transmission apparatus of claim 26, wherein the time domain pattern information is a bit pattern bitmap.
28. The data transmission apparatus according to claim 27, wherein each bit in said bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
29. A data transmission apparatus, applied to a terminal, comprising:
the third processing module is used for receiving time domain pattern information configured by the base station for a control resource set CORESET used for rate matching through a high-level signaling;
the fourth processing module is used for receiving downlink data according to the time domain pattern information;
the time domain pattern information is configuration information indicating a first time domain position which can be used for downlink data transmission by the CORESET and/or a second time domain position which cannot be used for downlink data transmission.
30. The data transmission apparatus of claim 29, wherein the time domain pattern information is a bit pattern bitmap.
31. The data transmission apparatus according to claim 30, wherein each bit in said bit pattern bitmap corresponds to a time domain resource unit;
wherein the time domain resource unit comprises at least one of the following time domain resources:
one slot;
the minimum listening period in all search spaces related to the CORESET;
the maximum listening period in all search spaces associated with the CORESET.
CN201810936964.5A 2018-08-16 2018-08-16 Data transmission method, device, base station, terminal and computer readable storage medium Active CN110839286B (en)

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