CN112583550B - Channel transmission method, terminal and base station - Google Patents

Channel transmission method, terminal and base station Download PDF

Info

Publication number
CN112583550B
CN112583550B CN201910934885.5A CN201910934885A CN112583550B CN 112583550 B CN112583550 B CN 112583550B CN 201910934885 A CN201910934885 A CN 201910934885A CN 112583550 B CN112583550 B CN 112583550B
Authority
CN
China
Prior art keywords
scs
dci
uplink
uplink channel
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910934885.5A
Other languages
Chinese (zh)
Other versions
CN112583550A (en
Inventor
司倩倩
高雪娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Datang Mobile Communications Equipment Co Ltd
Original Assignee
Datang Mobile Communications Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Datang Mobile Communications Equipment Co Ltd filed Critical Datang Mobile Communications Equipment Co Ltd
Priority to CN201910934885.5A priority Critical patent/CN112583550B/en
Publication of CN112583550A publication Critical patent/CN112583550A/en
Application granted granted Critical
Publication of CN112583550B publication Critical patent/CN112583550B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority

Landscapes

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

Abstract

The embodiment of the invention provides a channel transmission method, a terminal and a base station, wherein the method comprises the steps of not canceling a target symbol in an uplink channel when receiving downlink control information DCI indicating bandwidth part BWP switching; the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel. The embodiment of the invention ensures the normal transmission of the uplink channel within the BWP switching time range.

Description

Channel transmission method, terminal and base station
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a channel transmission method, a terminal, and a base station.
Background
In a New Radio (NR) of a 5th generation mobile communication technology (5G), a carrier may include a maximum 4 BandWidth parts (BWPs), and a terminal only operates on one BWP at a time, where the BWP is called an active BWP. The activation of BWP may be triggered by a timer, or may dynamically indicate BWP handover through a Physical Downlink Control Channel (PDCCH) of a scheduling Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH), that is, Downlink Control Information (DCI) used by the PDCCH includes a BWP indication field indicating which BWP on a scheduled carrier of the terminal receives the PDSCH or transmits the PUSCH, where the indicated BWP is the activated BWP. When the indicated BWP number is different from the previous BWP number for receiving PDSCH or transmitting PUSCH, the terminal is instructed to perform BWP handover, that is, the terminal needs to receive PDSCH or transmit PUSCH on the new BWP indicated by the DCI and starts to operate on the new BWP from the beginning after the PDSCH or PUSCH. The time from the end position of the PDCCH indicating BWP handover to the start position of the PDSCH or PUSCH scheduled by the PDCCH is referred to as a handover time (transition time), and is used for time including PDCCH processing, radio frequency adjustment, preparation of uplink data (for PUSCH transmission), and the like.
In the prior art, the protocol provides that a terminal cannot transmit and receive information on a carrier on which BWP switching occurs, i.e. within a transition time. However, if a part of symbols of an uplink channel is located within the BWP switching time range, after receiving DCI instructing BWP switching, the terminal needs to perform processing such as decoding on the DCI; when the partial symbol of the uplink channel is in the time period for the terminal to parse the DCI, the terminal still transmits the uplink channel because the terminal does not know whether BWP handover exists, but the current protocol provides that the terminal cannot transmit and receive within the BWP handover time, that is, the terminal cannot implement the behavior defined by the protocol at present. For example, in slot n +2 of BWP1, the base station indicates downlink BWP handover through DCI, and the DCI-scheduled PDSCH indicating handover is located in slot n +4 on BWP2, so that the time from the third symbol of slot n +2 to the end of slot n +3 belongs to the handover time, within which the terminal cannot transmit and receive data; however, there is an uplink channel in the time slot n +2, but the terminal has not completed PDCCH information analysis when the uplink channel starts transmission, and therefore it cannot be determined whether the uplink channel is located within the BWP switching time, and it cannot cancel the uplink channel.
Disclosure of Invention
Embodiments of the present invention provide a channel transmission method, a terminal, and a base station, so as to ensure correct transmission of a channel in a BWP handover process.
In a first aspect, an embodiment of the present invention provides a channel transmission method, including:
when receiving downlink control information DCI indicating bandwidth part BWP switching, not canceling a target symbol in an uplink channel;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
In a second aspect, an embodiment of the present invention provides a channel transmission method, including:
sending downlink control information DCI indicating bandwidth part BWP switching to a terminal;
receiving an uplink channel sent by a terminal on a target symbol in the uplink channel;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
In a third aspect, an embodiment of the present invention provides a channel transmission apparatus, including:
a processing module, configured to not cancel a target symbol in an uplink channel when receiving DCI indicating BWP handover of a bandwidth part;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
In a fourth aspect, an embodiment of the present invention provides a channel transmission apparatus, including:
a sending module, configured to send, to a terminal, DCI indicating that a bandwidth part BWP is switched;
a receiving module, configured to receive an uplink channel sent by a terminal on a target symbol in the uplink channel;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
In a fifth aspect, an embodiment of the present invention provides a terminal, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor implements the steps of the channel transmission method according to the first aspect when executing the program.
In a sixth aspect, an embodiment of the present invention provides a base station, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor implements the steps of the channel transmission method according to the second aspect when executing the program.
In a seventh aspect, an embodiment of the present invention provides a non-transitory 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 according to the first aspect.
In an eighth aspect, an embodiment of the present invention provides a non-transitory 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 according to the second aspect.
According to the channel transmission method, the terminal and the base station provided by the embodiment of the invention, when the DCI for BWP switching is received, the target symbol in the uplink channel is not cancelled, wherein the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than the preset time and are between the initial position and the end position of the DCI in the symbols contained in the uplink channel, so that the terminal can not cancel the symbols in the DCI analysis time range in the BWP switching time, namely, the terminal can not receive and transmit the DCI for indicating the BWP switching only after the analysis of the DCI is completed in the BWP switching time, and the accurate transmission of the uplink channel in the BWP switching process is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flowchart illustrating steps of a channel transmission method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a second step of a channel transmission method according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a case where a target symbol in an uplink channel is not cancelled according to an embodiment of the present invention;
FIG. 4 is a block diagram of a channel transmission apparatus according to an embodiment of the present invention;
FIG. 5 is a second block diagram of a channel transmission apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In 5G NR, it is specified that a terminal cannot transmit and receive information when BWP switching occurs, but when the terminal receives DCI instructing BWP switching, the terminal also needs to perform processing such as decoding of the DCI, which may result in that the terminal cannot immediately cancel an uplink channel.
In view of the above, the present invention provides a channel transmission method, which enables a terminal not to receive and transmit DCI indicating BWP handover only after completing parsing of the DCI within a handover time, and not to cancel an Orthogonal Frequency Division Multiplexing (OFDM) symbol within a time when resolution of the DIC is not completed, so as to ensure correct transmission during BWP handover. The following specifically describes embodiments of the present invention.
As shown in fig. 1, the method is one of the flow charts of the steps of the channel transmission method in the embodiment of the present invention, and the method includes the following steps:
step 101: when receiving the downlink control information DCI indicating the switching of the bandwidth part BWP, the target symbol in the uplink channel is not cancelled.
Specifically, the BWP switching and the uplink channel are on the same carrier, that is, the carrier where the BWP switching is performed and the carrier where the uplink channel is located are the same carrier.
In addition, specifically, the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position in the symbols included in the uplink channel and an ending position of the DCI.
Of course, it should be noted herein that the preset time may be a time for the terminal to complete DCI resolution.
In this way, when the terminal receives the DCI instructing BWP switching, the terminal does not cancel some or all of the symbols included in the uplink channel, where the symbol is smaller than the preset time between the starting position and the ending position of the DCI, so that the terminal can cancel the symbols only after completing parsing of the DCI instructing BWP switching within the BWP switching time, that is, does not perform reception and transmission, thereby ensuring correct transmission of the uplink channel in the BWP switching process.
Furthermore, in this embodiment, when receiving DCI instructing BWP handover, the terminal may cancel the remaining symbols in the uplink channel except for the target symbol, so that the terminal may cancel the remaining symbols in the uplink channel except for the target symbol during the BWP handover time, that is, cancel the symbols in the uplink channel except for the DCI resolution time during the BWP handover time, and complete the BWP handover after canceling the uplink channel, thereby smoothly implementing the BWP handover procedure.
In addition, further, in this embodiment, after the target symbol in the uplink channel is not cancelled, the uplink channel continues to be sent on the target symbol, so that a normal transmission process of the uplink channel on the target symbol is ensured.
In addition, it should be specifically noted herein that the Uplink Channel may be a Sounding Reference Signal (SRS) Channel, a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), or a Physical Random Access Channel (Physical Random Access Channel).
In addition, specifically, the DCI is DCI instructing uplink BWP handover and/or DCI instructing downlink BWP handover. That is, whether the BWP handover is the uplink handover or the downlink handover is not limited herein.
Specifically, the BWP switching includes BWP switching on a Frequency Division Duplex (FDD) carrier and BWP switching on a Time Division Duplex (TDD) carrier. That is, the switching environment of BWP switching is not limited herein.
In addition, further, in this embodiment, before the target symbol in the uplink channel is not cancelled, the target symbol needs to be determined first, that is, the preset time for positioning the target symbol needs to be determined first, so that the terminal can determine, according to the preset time, a part or all of the symbols included in the uplink channel, which are smaller than the preset time between the starting position and the DCI ending position, as the target symbol.
The specific process of determining the preset time will be described below.
First, before the target symbol in the uplink channel is not cancelled, the preset time may be determined according to a sub-carrier space (SCS) of the PDCCH carrying the DCI and/or the SCS of the uplink channel, and a terminal uplink processing capability corresponding to a carrier where the uplink channel is located.
When the preset time is determined according to the SCS of the PDCCH carrying the DCI and/or the SCS of the uplink channel and the uplink processing capability of the terminal corresponding to the carrier where the uplink channel is located, the preset time may be determined according to the SCS of the PDCCH carrying the DCI and/or the SCS of the uplink channel and the uplink processing capability of the terminal corresponding to the carrier where the uplink channel is located, by the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time;
N2representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located;
u is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel.
For the value of u, when the value is determined according to the subcarrier spacing SCS of the PDCCH and/or the SCS of the uplink channel, the following two ways may be included:
first, when there are a plurality of uplink channels corresponding to different SCS's, u represents the minimum value of the SCS of the PDCCH and the SCS of the uplink channel for each uplink channel.
For example, for a PUSCH, u may be the minimum value of the SCS corresponding to the PDCCH carrying the DCI and the SCS corresponding to the PUSCH; for the SRS channel, u may be the minimum value of the SCS corresponding to the PDCCH carrying the DCI and the SCS corresponding to the SRS channel; for a PRACH, u may be the minimum of the SCS corresponding to the PDCCH carrying the DCI and the SCS corresponding to the PRACH.
Second, when there are a plurality of uplink channels corresponding to different SCS, for each uplink channel, u represents the minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
For example, if there are three uplink channels of PUSCH, PRACH, and PUCCH, for PUSCH, u may be the minimum value among SCS corresponding to PDCCH carrying DCI, SCS corresponding to PUSCH, SCS corresponding to PRACH, and SCS corresponding to PUCCH.
In addition, specifically, regarding the value of u, it should be noted that, when the SCS of the PRACH channel is smaller than 15KHZ, the value of u may be 0.
Thus, the value of u is determined by the above manner, so that the preset time corresponding to each uplink channel can be determined by the above formula, and then a part or all of symbols smaller than the preset time between the starting position and the DCI ending position in the symbols included in the uplink channels, that is, the target symbol is determined, so that the terminal can not cancel the determined target symbol in the uplink channel when receiving DCI instructing BWP switching, and further, the terminal can not cancel the symbol in the DCI analysis time range, but perform the receiving and transmitting processes after the DCI analysis is completed.
Specifically, for the PUCCH, before the target symbol in the uplink channel is not cancelled, the preset time may be determined in the following manner:
and determining the preset time according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capability of the terminal corresponding to the carrier bearing the DCI.
Specifically, when the preset time is determined according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the downlink processing capability of the terminal corresponding to the carrier carrying the DCI, the preset time may be determined according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the downlink processing capability of the terminal corresponding to the carrier carrying the DCI, by the following formula:
T2＝N3×(2048+144)×k×2-u×Tc；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
k＝64；
T2 represents the preset time;
u represents the minimum value of the SCS of PDCCH and the SCS of PUCCH;
when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is 2, then when u is 0, N3When u is 1, N is 334.5, when u is 2, N39; when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is not 2, if u is 0, N3When u is 1, N is 83When u is 2, N is 103When u is 3, N is 173＝20。
Specifically, by the above formula, the determination of the preset time corresponding to the PUCCH is realized, so that the terminal can use a part or all of symbols smaller than the preset time between the starting position and the DCI ending position in the symbols included in the PUCCH as the target symbols according to the preset time, and does not cancel the target symbols, so that the terminal can perform the receiving and transmitting processes after DCI analysis is completed without canceling the symbols within the DCI analysis time range.
In this way, in this embodiment, when receiving DCI instructing BWP switching, the terminal does not cancel a target symbol in the uplink channel, where the target symbol is a part or all of symbols, which are included in the uplink channel and are smaller than a preset time, between a starting position and a DCI ending position, so that the terminal does not cancel a symbol in a DI analysis time range in the BWP switching time, but does not perform receiving and sending after the DCI is analyzed, thereby ensuring correct transmission in the BWP switching process.
In addition, as shown in fig. 2, a second step flow chart of the channel transmission method in the embodiment of the present invention is shown, and the method includes the following steps:
step 201: and sending downlink control information DCI indicating bandwidth part BWP switching to the terminal.
In this step, specifically, the base station transmits DCI instructing BWP handover to the terminal.
It should be noted that the DCI may be DCI indicating uplink BWP handover and/or DCI indicating downlink BWP handover. That is, whether the BWP handover is the uplink handover or the downlink handover is not limited herein.
In addition, it should be further noted that the BWP switching includes BWP switching on an FDD carrier and BWP switching on a TDD carrier. That is, the switching environment of BWP switching is not limited herein.
Step 202: and receiving the uplink channel transmitted by the terminal on the target symbol in the uplink channel.
In this step, specifically, the base station receives an uplink channel transmitted by the terminal on a target symbol in the uplink channel.
Specifically, the BWP switching and the uplink channel are on the same carrier, that is, the carrier where the BWP switching is performed and the carrier where the uplink channel is located are the same carrier.
In addition, specifically, the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position in the symbols included in the uplink channel and an ending position of the DCI.
Of course, it should be noted herein that the preset time may be a time for the terminal to complete DCI resolution.
In this way, the base station receives the uplink channel sent by the terminal through the target symbol in the uplink channel, where the target symbol is a part or all of the symbols included in the uplink channel, where the distance between the starting position and the DCI ending position is less than the preset time, so that when the terminal continues to send the uplink channel within the analysis time of the DCI within the BWP switching time, the base station can receive the DCI, thereby implementing a normal transmission process of the uplink channel within the BWP switching time.
Note that, here, the uplink channel may be an SRS channel, PUCCH, PUSCH, or PRACH.
In addition, in this embodiment, before receiving the uplink channel sent by the terminal on the target symbol in the uplink channel, the target symbol needs to be determined first, that is, the preset time for positioning the target symbol needs to be determined first, so that the terminal can determine, according to the preset time, a part or all of symbols, which are smaller than the preset time, between the starting position and the DCI ending position in the symbols included in the uplink channel, as the target symbol.
The specific process of determining the preset time will be described below.
First, specifically, before receiving an uplink channel sent by a terminal on a target symbol in the uplink channel, a preset time may be determined according to a subcarrier spacing SCS of a PDCCH carrying DCI and/or an SCS of the uplink channel, and a terminal uplink processing capability corresponding to a carrier where the uplink channel is located.
When the preset time is determined according to the SCS of the PDCCH carrying the DCI and/or the SCS of the uplink channel and the uplink processing capability of the terminal corresponding to the carrier where the uplink channel is located, the preset time may be determined according to the SCS of the PDCCH carrying the DCI and/or the SCS of the uplink channel and the uplink processing capability of the terminal corresponding to the carrier where the uplink channel is located, by the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time;
N2representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located;
u is determined according to the subcarrier spacing SCS of the PDCCH and/or the SCS of the uplink channel.
For the value of u, when the value is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel, the following two methods may be included:
first, when there are a plurality of uplink channels corresponding to different SCS's, u represents the minimum value of the SCS of the PDCCH and the SCS of the uplink channel for each uplink channel.
For example, for a PUSCH, u may be the minimum value of the SCS corresponding to the PDCCH carrying the DCI and the SCS corresponding to the PUSCH; for the SRS channel, u may be the minimum value of the SCS corresponding to the PDCCH carrying the DCI and the SCS corresponding to the SRS channel; for a PRACH, u may be the minimum of the SCS corresponding to the PDCCH carrying the DCI and the SCS corresponding to the PRACH.
Second, when there are a plurality of uplink channels corresponding to different SCS, for each uplink channel, u represents the minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
For example, if there are three uplink channels of PUSCH, PRACH, and PUCCH, for PUSCH, u may be the minimum value among SCS corresponding to PDCCH carrying DCI, SCS corresponding to PUSCH, SCS corresponding to PRACH, and SCS corresponding to PUCCH.
In addition, specifically, regarding the value of u, it should be noted that, when the SCS of the PRACH channel is smaller than 15KHZ, the value of u may be 0.
Thus, the value of u is determined in the above manner, so that the base station can determine the preset time corresponding to each uplink channel through the above formula, and further determine a part or all of the symbols which are smaller than the preset time between the starting position and the DCI ending position in the symbols included in the uplink channel, that is, determine the target symbol, thereby realizing that the base station can receive the uplink channel sent by the terminal on the target symbol in the uplink channel, and ensuring the normal transmission of the uplink channel within the BWP switching time.
Specifically, for the PUCCH, before receiving the uplink channel sent by the terminal on the target symbol in the uplink channel, the preset time may be determined as follows:
and determining the preset time according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capability of the terminal corresponding to the carrier bearing the DCI.
Specifically, when the preset time is determined according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the downlink processing capability of the terminal corresponding to the carrier carrying the DCI, the preset time may be determined according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the downlink processing capability of the terminal corresponding to the carrier carrying the DCI, by the following formula:
T2＝N3×(2048+144)×k×2-u×Tc；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
k＝64；
T2 represents the preset time;
u represents the minimum value of the SCS of PDCCH and the SCS of PUCCH;
when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is 2, then when u is 0, N3When u is 1, N is 334.5, when u is 2, N39; when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is not 2, if u is 0, N3When u is 1, N is 83When u is 2, N is 103When u is 3, N is 173＝20。
Specifically, by the above formula, the determination of the preset time corresponding to the PUCCH is realized, so that the base station can use a part or all of symbols, which are smaller than the preset time, between the starting position and the DCI ending position in symbols included in the PUCCH as target symbols according to the preset time, and receive the uplink channel sent by the terminal at the target symbols, thereby ensuring normal transmission of the uplink channel within the BWP switching time.
In this way, the base station in this embodiment transmits DCI instructing BWP handover to the terminal, and receives an uplink channel transmitted by the terminal on a target symbol in the uplink channel located on the same carrier as the BWP handover, where the target symbol is a part or all of symbols included in the uplink channel, where a distance between a starting position and an ending position of the DCI is less than a preset time, so that when the terminal continues to transmit the uplink channel within a resolution time of the DCI within the BWP handover time, the base station can receive the DCI, thereby implementing normal transmission of the uplink channel within the BWP handover time.
The above process is explained below by way of example.
If 3 shows, assume that the terminal is configured with two BWPs (including BWP1 and BWP2) on one carrier, both transmitting with a subcarrier spacing of 15 kHz. In addition, assume that in slot n, the terminal receives a piece of DCI (carried on PDCCH1 in fig. 3) to schedule PUSCH transmission in slot n +1 (i.e., the slot offset K2 between the slot in which the PUSCH is located and the slot in which the DCI is located is 1), and assume that the PUCCH corresponding to Hybrid Automatic Repeat request-acknowledgement (HARQ-ACK) occupies 8 th to 14 th OFDM symbols. Then at this time, if the base station wants to perform BWP handover on the current carrier, the base station transmits DCI indicating BWP handover in slot n +1 (in fig. 3, PDCCH2 carries and indicates to switch to BWP2, and slot offset K0 indicating the slot where PDSCH is located and the slot where DCI is located is 1), and assuming that the DCI indicating BWP handover occupies 3 OFDM symbols in slot n +1, there is 4 OFDM symbols between the end position and the PUSCH start position of the DCI indicating BWP handover. At this time, assuming that the uplink processing capability of the terminal configured on the current carrier is 2, it may be calculated to obtain 6 OFDM symbols on the current carrier corresponding to the preset time. That is, in the time range of 6 OFDM symbols after the DCI end position, the terminal cannot know that the base station has instructed BWP handover to request the uplink cancellation processing time, and therefore the terminal does not cancel uplink transmission on the 6 OFDM symbols at this time. Therefore, the terminal can continue to transmit the PUSCH on the first two OFDM symbols of the PUSCH in the slot n +1, and cancel the PUSCH transmission on the rest symbols of the PUSCH, so that the terminal does not receive and transmit the DCI for instructing the BWP switching only after the analysis of the DCI is completed within the BWP switching time, and a smooth BWP switching process is ensured.
In addition, as shown in fig. 4, the apparatus is a block diagram of a channel transmission apparatus in an embodiment of the present invention, and the apparatus includes:
a processing module 401, configured to not cancel a target symbol in an uplink channel when receiving downlink control information DCI indicating that bandwidth portion BWP is switched;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
Optionally, the method further comprises:
and the cancellation module is used for canceling the rest symbols except the target symbol in the uplink channel.
Optionally, the method further comprises:
and the determining module is used for determining the preset time according to the subcarrier spacing SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located.
Optionally, the determining module is configured to determine the preset time according to the SCS of the PDCCH for carrying the DCI and/or the SCS of the uplink channel, and the uplink processing capability of the terminal corresponding to the carrier where the uplink channel is located, by using the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time;
N2representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located;
u is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel.
Optionally, when there are multiple uplink channels corresponding to different SCS, for each uplink channel, the u represents a minimum value of the SCS of the PDCCH and the SCS of the uplink channel; or, when there are a plurality of uplink channels corresponding to different SCS, for each uplink channel, the u represents a minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
Optionally, for a physical random access channel PRACH, when the SCS of the PRACH is less than 15kHZ, the value of u is 0.
It should be noted that, the apparatus provided in this embodiment can implement all the method steps that can be implemented by the terminal-side method embodiment, and can achieve the same technical effect, and details of the same parts and technical effects in this embodiment and the method embodiment are not repeated herein.
In addition, as shown in fig. 5, a second block diagram of a channel transmission apparatus according to an embodiment of the present invention is shown, the apparatus includes:
a sending module 501, configured to send, to a terminal, downlink control information DCI indicating that a bandwidth part BWP is switched;
a receiving module 502, configured to receive an uplink channel sent by a terminal on a target symbol in the uplink channel;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
Optionally, the method further comprises:
and the determining module is used for determining the preset time according to the subcarrier spacing SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located.
Optionally, the determining module is configured to determine the preset time according to the SCS of the PDCCH for carrying the DCI and/or the SCS of the uplink channel, and the uplink processing capability of the terminal corresponding to the carrier where the uplink channel is located, by using the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δf ax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time;
N2representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located;
u is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel.
Optionally, when there are multiple uplink channels corresponding to different SCS, for each uplink channel, the u represents a minimum value of the SCS of the PDCCH and the SCS of the uplink channel; or,
when there are a plurality of uplink channels corresponding to different SCS's, for each uplink channel, the u represents the minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
Optionally, for a physical random access channel PRACH, when the SCS of the PRACH is less than 15kHZ, the value of u is 0.
It should be noted that the apparatus provided in this embodiment can implement all the method steps that can be implemented by the method embodiment on the base station side, and can achieve the same technical effect, and details of the same parts and technical effects in this embodiment and the method embodiment are not repeated herein.
In addition, as shown in fig. 6, an entity structure diagram of a terminal provided in the embodiment of the present invention is shown, where the terminal may include: a processor (processor)610, a communication Interface (Communications Interface)620, a memory (memory)630 and a communication bus 640, wherein the processor 610, the communication Interface 620 and the memory 630 communicate with each other via the communication bus 640. The processor 610 may invoke a computer program stored on the memory 630 and executable on the processor 610 to implement the steps of:
when receiving downlink control information DCI indicating bandwidth part BWP switching, not canceling a target symbol in an uplink channel; the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
Optionally, when receiving downlink control information DCI indicating a bandwidth part BWP handover, the processor executes the program to further implement the following steps: and canceling the rest symbols except the target symbol in the uplink channel.
Optionally, before the target symbol in the uplink channel is not cancelled, the processor further implements the following steps when executing the program: and determining the preset time according to the subcarrier spacing SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located.
Optionally, the determining the preset time according to the subcarrier spacing SCS of the PDCCH carrying the DCI and/or the SCS of the uplink channel and the uplink processing capability of the terminal corresponding to the carrier where the uplink channel is located includes: determining the preset time according to the SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located by the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time; n is a radical of2Representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located; u is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel.
Optionally, when there are multiple uplink channels corresponding to different SCS, for each uplink channel, the u represents a minimum value of the SCS of the PDCCH and the SCS of the uplink channel; or, when there are a plurality of uplink channels corresponding to different SCS, for each uplink channel, the u represents a minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
Optionally, for a physical random access channel PRACH, when the SCS of the PRACH is less than 15kHZ, the value of u is 0.
Optionally, for the PUCCH, before the target symbol in the uplink channel is not cancelled, the processor further implements the following steps when executing the program: and determining the preset time according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI.
Optionally, the determining the preset time according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the downlink processing capability of the terminal corresponding to the carrier carrying the DCI includes: according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI, the preset time is determined through the following formula:
T2＝N3×(2048+144)×k×2-u×Tc；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
k＝64；
T2 represents the preset time; u denotes the SCS and the PU of the PDCCHMinimum in SCS of CCH; when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is 2, if u is 0, N3When u is 1, N is 334.5, when u is 2, N39; when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is not 2, if u is 0, N is3When u is 1, N is 83When u is 2, N is 103When u is 3, N is 173＝20。
Optionally, after the target symbol in the uplink channel is not cancelled, the processor further implements the following steps when executing the program: and continuing to transmit the uplink channel on the target symbol.
Optionally, the uplink channel is a sounding reference signal SRS channel, a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, or a PRACH.
Optionally, the DCI is DCI indicating uplink BWP switching and/or DCI indicating downlink BWP switching.
Optionally, the BWP switching includes BWP switching on a frequency division duplex FDD carrier and BWP switching on a time division duplex TDD carrier.
In addition, the logic instructions in the memory 630 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, as shown in fig. 7, an entity structure diagram of a base station provided in the embodiment of the present invention is shown, where the base station may include: a processor (processor)710, a communication Interface (Communications Interface)720, a memory (memory)730, and a communication bus 740, wherein the processor 710, the communication Interface 720, and the memory 730 communicate with each other via the communication bus 740. The processor 710 may invoke a computer program stored on the memory 730 and executable on the processor 710 to implement the steps of: sending downlink control information DCI indicating bandwidth part BWP switching to a terminal; receiving an uplink channel sent by a terminal on a target symbol in the uplink channel; the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
Optionally, before the receiving terminal sends the uplink channel on the target symbol in the uplink channel, the processor implements the following steps when executing the program: and determining the preset time according to the subcarrier spacing SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located.
Optionally, the determining the preset time according to the subcarrier spacing SCS of the PDCCH carrying the DCI and/or the SCS of the uplink channel and the uplink processing capability of the terminal corresponding to the carrier where the uplink channel is located includes: determining the preset time according to the SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located by the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time; n is a radical of2Representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located; u is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel.
Optionally, when there are multiple uplink channels corresponding to different SCS, for each uplink channel, the u represents a minimum value of the SCS of the PDCCH and the SCS of the uplink channel; or, when there are a plurality of uplink channels corresponding to different SCS, for each uplink channel, the u represents a minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
Optionally, for a physical random access channel PRACH, when the SCS of the PRACH is less than 15kHZ, the value of u is 0.
Optionally, for the PUCCH, before the uplink channel sent by the receiving terminal on the target symbol in the uplink channel, the processor implements the following steps when executing the program: and determining the preset time according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI.
Optionally, the determining the preset time according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the downlink processing capability of the terminal corresponding to the carrier carrying the DCI includes: according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI, the preset time is determined through the following formula:
T2＝N3×(2048+144)×k×2-u×Tc；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
k＝64；
T2 represents the preset time; u represents a minimum value of the SCS of the PDCCH and the SCS of the PUCCH; when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is 2, if u is 0, N3When u is 1, N is 334.5, when u ═2 is, N39; when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is not 2, if u is 0, N is3When u is 1, N is 83When u is 2, N is 103When u is 3, N is 173＝20。
Optionally, the uplink channel is a sounding reference signal SRS channel, a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, or a PRACH.
Optionally, the DCI is DCI indicating uplink BWP switching and/or DCI indicating downlink BWP switching.
Optionally, the BWP switching includes BWP switching on a frequency division duplex FDD carrier and BWP switching on a time division duplex TDD carrier.
In addition, the logic instructions in the memory 730 can be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following method: when receiving downlink control information DCI indicating bandwidth part BWP switching, not canceling a target symbol in an uplink channel; the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following method: sending downlink control information DCI indicating bandwidth part BWP switching to a terminal; receiving an uplink channel sent by a terminal on a target symbol in the uplink channel; the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (48)

1. A method for channel transmission, comprising:
when receiving downlink control information DCI indicating bandwidth part BWP switching, not canceling a target symbol in an uplink channel;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
2. The channel transmission method according to claim 1, wherein when receiving downlink control information DCI indicating the switching of the bandwidth part BWP, the method further comprises:
and canceling the rest symbols except the target symbol in the uplink channel.
3. The channel transmission method according to claim 1, wherein before the canceling the target symbol in the uplink channel, the method further comprises:
and determining the preset time according to the subcarrier spacing SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located.
4. The channel transmission method according to claim 3, wherein the determining the preset time according to a subcarrier spacing SCS of a PDCCH for carrying the DCI and/or an SCS of the uplink channel and a terminal uplink processing capability corresponding to a carrier where the uplink channel is located includes:
determining the preset time according to the SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located by the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time;
N2representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located;
u is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel.
5. The channel transmission method according to claim 4,
when a plurality of uplink channels corresponding to different SCSs exist, for each uplink channel, the u represents the minimum value of the SCS of the PDCCH and the SCS of the uplink channel; or,
when there are a plurality of uplink channels corresponding to different SCS's, for each uplink channel, the u represents the minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
6. The channel transmission method according to claim 4,
for a Physical Random Access Channel (PRACH), when SCS of the PRACH is less than 15kHZ, the value of u is 0.
7. The channel transmission method according to claim 1, wherein before the canceling the target symbol in the uplink channel for the PUCCH, the method further comprises:
and determining the preset time according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI.
8. The channel transmission method according to claim 7, wherein the determining the preset time according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the downlink processing capability of the terminal corresponding to the carrier carrying the DCI includes:
according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI, the preset time is determined through the following formula:
T2＝N3×(2048+144)×k×2-u×Tc；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
k＝64；
T2 represents the preset time;
u represents a minimum value of the SCS of the PDCCH and the SCS of the PUCCH;
when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is 2, if u is 0, N3When u is 1, N is 334.5, when u is 2, N3＝9；
When the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is not 2, if u is 0, N is3When u is 1, N is 83When u is 2, N is 103When u is 3, N is 173＝20。
9. The channel transmission method according to claim 1, wherein after the step of not canceling the target symbol in the uplink channel, the method further comprises:
and continuing to transmit the uplink channel on the target symbol.
10. The channel transmission method according to claim 1, wherein the uplink channel is a Sounding Reference Signal (SRS) channel, a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), or a PRACH.
11. The channel transmission method according to claim 1, wherein the DCI is a DCI indicating uplink BWP switching and/or a DCI indicating downlink BWP switching.
12. The channel transmission method according to claim 1, wherein the BWP switching comprises BWP switching on a frequency division duplex FDD carrier and BWP switching on a time division duplex TDD carrier.
13. A method for channel transmission, comprising:
sending downlink control information DCI indicating bandwidth part BWP switching to a terminal;
receiving an uplink channel sent by a terminal on a target symbol in the uplink channel;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
14. The channel transmission method according to claim 13, wherein the receiving terminal is configured to, before the uplink channel transmitted on the target symbol in the uplink channel, further include:
and determining the preset time according to the subcarrier spacing SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located.
15. The channel transmission method according to claim 14, wherein the determining the preset time according to a subcarrier spacing SCS of a PDCCH for carrying the DCI and/or an SCS of the uplink channel, and a terminal uplink processing capability corresponding to a carrier where the uplink channel is located, comprises:
determining the preset time according to the SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located by the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time;
N2representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located;
u is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel.
16. The channel transmission method according to claim 15,
when a plurality of uplink channels corresponding to different SCSs exist, for each uplink channel, the u represents the minimum value of the SCS of the PDCCH and the SCS of the uplink channel; or,
when there are a plurality of uplink channels corresponding to different SCS's, for each uplink channel, the u represents the minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
17. The channel transmission method according to claim 15,
for a Physical Random Access Channel (PRACH), when SCS of the PRACH is less than 15kHZ, the value of u is 0.
18. The channel transmission method according to claim 13, wherein the receiving terminal, for the PUCCH, precedes the uplink channel transmitted on the target symbol in the uplink channel, and further comprises:
and determining the preset time according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI.
19. The channel transmission method according to claim 18, wherein the determining the preset time according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the downlink processing capability of the terminal corresponding to the carrier carrying the DCI includes:
according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI, the preset time is determined through the following formula:
T2＝N3×(2048+144)×k×2-u×Tc；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
k＝64；
T2 represents the preset time;
u represents a minimum value of the SCS of the PDCCH and the SCS of the PUCCH;
when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is 2, if u is 0, N3When u is 1, N is 334.5, when u is 2, N3＝9；
When the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is not 2, if u is 0, N is3When u is 1, N is 83When u is 2, N is 103When u is 3, N is 173＝20。
20. The channel transmission method according to claim 13, wherein the uplink channel is a Sounding Reference Signal (SRS) channel, a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), or a PRACH.
21. The channel transmission method according to claim 13, wherein the DCI is a DCI indicating uplink BWP switching and/or a DCI indicating downlink BWP switching.
22. The channel transmission method according to claim 13, wherein the BWP switching comprises BWP switching on a frequency division duplex FDD carrier and BWP switching on a time division duplex TDD carrier.
23. A channel transmission apparatus, comprising:
a processing module, configured to not cancel a target symbol in an uplink channel when receiving DCI indicating BWP handover of a bandwidth part;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
24. A channel transmission apparatus, comprising:
a sending module, configured to send, to a terminal, DCI indicating that a bandwidth part BWP is switched;
a receiving module, configured to receive an uplink channel sent by a terminal on a target symbol in the uplink channel;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
25. A terminal comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of:
when receiving downlink control information DCI indicating bandwidth part BWP switching, not canceling a target symbol in an uplink channel;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
26. The terminal according to claim 25, wherein said processor, when receiving downlink control information DCI indicating a bandwidth part BWP handover, further implements the following steps when executing the program:
and canceling the rest symbols except the target symbol in the uplink channel.
27. The terminal of claim 25, wherein before the cancellation of the target symbol in the uplink channel, the processor executes the program to further implement the following steps:
and determining the preset time according to the subcarrier spacing SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located.
28. The terminal of claim 27, wherein the determining the preset time according to a subcarrier spacing SCS of a PDCCH for carrying the DCI and/or a SCS of the uplink channel and a terminal uplink processing capability corresponding to a carrier where the uplink channel is located comprises:
determining the preset time according to the SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located by the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time;
N2representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located;
u is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel.
29. The terminal of claim 28,
when a plurality of uplink channels corresponding to different SCSs exist, for each uplink channel, the u represents the minimum value of the SCS of the PDCCH and the SCS of the uplink channel; or,
when there are a plurality of uplink channels corresponding to different SCS's, for each uplink channel, the u represents the minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
30. The terminal of claim 28, wherein for a Physical Random Access Channel (PRACH), the value of u is 0 when the SCS of the PRACH is less than 15 kHZ.
31. The terminal of claim 25, wherein for PUCCH, before the target symbol in the uplink channel is not cancelled, the processor executes the program to further implement the following steps:
and determining the preset time according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI.
32. The terminal of claim 31, wherein the determining the preset time according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the terminal downlink processing capability corresponding to the carrier carrying the DCI comprises:
according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI, the preset time is determined through the following formula:
T2＝N3×(2048+144)×k×2-u×Tc；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
k＝64；
T2 represents the preset time;
u represents a minimum value of the SCS of the PDCCH and the SCS of the PUCCH;
when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is 2, if u is 0, N3When u is 1, N is 334.5, when u is 2, N3＝9；
When the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is not 2, if u is 0, N is3When u is 1, N is 83When u is 2, N is 103When u is 3, N is 173＝20。
33. The terminal of claim 25, wherein after the target symbol in the uplink channel is not cancelled, the processor executes the program to further implement the following steps:
and continuing to transmit the uplink channel on the target symbol.
34. The terminal of claim 25, wherein the uplink channel is a Sounding Reference Signal (SRS) channel, a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), or a PRACH.
35. The terminal of claim 25, wherein the DCI is a DCI indicating uplink BWP handover and/or a DCI indicating downlink BWP handover.
36. The terminal of claim 25, wherein the BWP handover comprises BWP handover on a frequency division duplex, FDD, carrier and BWP handover on a time division duplex, TDD, carrier.
37. A base station comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of:
sending downlink control information DCI indicating bandwidth part BWP switching to a terminal;
receiving an uplink channel sent by a terminal on a target symbol in the uplink channel;
the BWP switching and the uplink channel are on the same carrier, and the target symbol is a part or all of symbols which are smaller than a preset time and are between a starting position and an ending position of the DCI in symbols contained in the uplink channel.
38. The base station of claim 37, wherein the processor executes the program to perform the following steps before the uplink channel transmitted by the receiving terminal on the target symbol in the uplink channel:
and determining the preset time according to the subcarrier spacing SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located.
39. The base station of claim 38, wherein the determining the preset time according to a subcarrier spacing SCS of a PDCCH for carrying the DCI and/or a SCS of the uplink channel and a terminal uplink processing capability corresponding to a carrier where the uplink channel is located comprises:
determining the preset time according to the SCS of the physical downlink control channel PDCCH bearing the DCI and/or the SCS of the uplink channel and the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located by the following formula:
T1＝max{(N2+d2，1)×(2048+144)×k×2-u×Tc，d2，2}；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
d2，1＝1，d2，2＝0，k＝64；
T1 represents the preset time;
N2representing the uplink processing capacity of the terminal corresponding to the carrier where the uplink channel is located;
u is determined according to the SCS of the PDCCH and/or the SCS of the uplink channel.
40. The base station of claim 39,
when a plurality of uplink channels corresponding to different SCSs exist, for each uplink channel, the u represents the minimum value of the SCS of the PDCCH and the SCS of the uplink channel; or,
when there are a plurality of uplink channels corresponding to different SCS's, for each uplink channel, the u represents the minimum value among the SCS of the PDCCH and the SCS of all uplink channels.
41. The base station of claim 39, wherein for a Physical Random Access Channel (PRACH), the value of u is 0 when the SCS of the PRACH is less than 15 kHZ.
42. The base station of claim 37, wherein for PUCCH, the processor executes the program to perform the following steps before the uplink channel transmitted by the receiving terminal on the target symbol in the uplink channel:
and determining the preset time according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI.
43. The base station of claim 42, wherein the determining the preset time according to the SCS of the PDCCH carrying the DCI, the SCS of the PUCCH, and the downlink processing capability of the terminal corresponding to the carrier carrying the DCI comprises:
according to the SCS of the PDCCH bearing the DCI, the SCS of the PUCCH and the downlink processing capacity of the terminal corresponding to the carrier bearing the DCI, the preset time is determined through the following formula:
T2＝N3×(2048+144)×k×2-u×Tc；
wherein, Tc＝1/(Δfmax*Nf)，Δfmax＝480×103Hz and Nf＝4096；
k＝64；
T2 represents the preset time;
u represents a minimum value of the SCS of the PDCCH and the SCS of the PUCCH;
when the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is 2, if u is 0, N3When u is 1, N is 334.5, when u is 2, N3＝9；
When the downlink processing capability of the terminal corresponding to the carrier carrying the DCI is not 2, if u is 0, N is3When u is 1, N is 83When u is 2, N is 103When u is 3, N is 173＝20。
44. The base station of claim 37, wherein the uplink channel is a Sounding Reference Signal (SRS) channel, a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), or a PRACH.
45. The base station of claim 37, wherein the DCI is a DCI indicating uplink BWP handover and/or a DCI indicating downlink BWP handover.
46. The base station of claim 37, wherein the BWP handover comprises BWP handover on a frequency division duplex, FDD, carrier and BWP handover on a time division duplex, TDD, carrier.
47. A non-transitory 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 12.
48. A non-transitory 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 13 to 22.
CN201910934885.5A 2019-09-29 2019-09-29 Channel transmission method, terminal and base station Active CN112583550B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910934885.5A CN112583550B (en) 2019-09-29 2019-09-29 Channel transmission method, terminal and base station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910934885.5A CN112583550B (en) 2019-09-29 2019-09-29 Channel transmission method, terminal and base station

Publications (2)

Publication Number Publication Date
CN112583550A CN112583550A (en) 2021-03-30
CN112583550B true CN112583550B (en) 2021-11-12

Family

ID=75110758

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910934885.5A Active CN112583550B (en) 2019-09-29 2019-09-29 Channel transmission method, terminal and base station

Country Status (1)

Country Link
CN (1) CN112583550B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021093124A1 (en) 2019-12-31 2021-05-20 Zte Corporation Systems and methods for determining information indicative of cancelation

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109451792A (en) * 2017-08-11 2019-03-08 北京小米移动软件有限公司 Method, base station and the user equipment of adjustment information transmission
CN109560905A (en) * 2017-09-26 2019-04-02 维沃移动通信有限公司 A kind of active control method, user terminal and network side equipment
CN109588058A (en) * 2017-07-28 2019-04-05 Lg电子株式会社 The method and device thereof of BWP operation are executed in wireless communication system
CN109788559A (en) * 2017-11-14 2019-05-21 维沃移动通信有限公司 Portions of bandwidth BWP switching method, terminal and the network equipment of non-symmetrical spectrum
CN109788553A (en) * 2017-11-10 2019-05-21 华为技术有限公司 A kind of bandwidth switching method and device
CN109803319A (en) * 2017-11-16 2019-05-24 北京三星通信技术研究有限公司 A kind of portions of bandwidth transform method and user equipment
CN109803354A (en) * 2017-11-17 2019-05-24 北京展讯高科通信技术有限公司 A kind of partial carrier wave bandwidth BW P switching method and device
CN110291814A (en) * 2019-05-17 2019-09-27 北京小米移动软件有限公司 BWP switching method, device and storage medium
CN111386745A (en) * 2017-11-24 2020-07-07 鸿颖创新有限公司 Method and apparatus for handling random access procedure in partial bandwidth handover operation

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109588058A (en) * 2017-07-28 2019-04-05 Lg电子株式会社 The method and device thereof of BWP operation are executed in wireless communication system
CN109451792A (en) * 2017-08-11 2019-03-08 北京小米移动软件有限公司 Method, base station and the user equipment of adjustment information transmission
CN109560905A (en) * 2017-09-26 2019-04-02 维沃移动通信有限公司 A kind of active control method, user terminal and network side equipment
CN109788553A (en) * 2017-11-10 2019-05-21 华为技术有限公司 A kind of bandwidth switching method and device
CN109788559A (en) * 2017-11-14 2019-05-21 维沃移动通信有限公司 Portions of bandwidth BWP switching method, terminal and the network equipment of non-symmetrical spectrum
CN109803319A (en) * 2017-11-16 2019-05-24 北京三星通信技术研究有限公司 A kind of portions of bandwidth transform method and user equipment
CN109803354A (en) * 2017-11-17 2019-05-24 北京展讯高科通信技术有限公司 A kind of partial carrier wave bandwidth BW P switching method and device
CN111386745A (en) * 2017-11-24 2020-07-07 鸿颖创新有限公司 Method and apparatus for handling random access procedure in partial bandwidth handover operation
CN110291814A (en) * 2019-05-17 2019-09-27 北京小米移动软件有限公司 BWP switching method, device and storage medium

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
R1-1808270，remaining issues on BWP CA in NR;HUAWEI;《3gpp》;20180810;全文 *
R4-1800117，On BWP switching delay;Intel Corporation;《3gpp》;20180115;全文 *
R4-1815836 Corrections to TC for BWP switch (DCI+timer) FR1 PSCell + FR1 SCell;HUAWEI;《3gpp》;20181102;全文 *

Also Published As

Publication number Publication date
CN112583550A (en) 2021-03-30

Similar Documents

Publication Publication Date Title
CN109997405B (en) Method for performing random access channel procedure and user equipment thereof
US11452124B2 (en) Uplink channel scheduling to retain channel occupancy for unlicensed wireless spectrum
US10999846B2 (en) Resource allocation in random access procedure
US10856337B2 (en) Method and apparatus for random access in wireless communication system and user terminal
CN107070609B (en) Wireless communication method, user equipment and base station supporting HARQ
EP3742847B1 (en) Method and apparatus for transmitting information
CN105812105B (en) Transmission device, system and method for demodulation reference signal
CN108293249B (en) Method, terminal and base station for sending uplink control information
JP7291623B2 (en) Communication method, terminal device and network device
EP2340681A1 (en) Synchronization for device-to-device communication
EP3468289A1 (en) Signal transmission method and apparatus
US11284390B2 (en) Data communication method, terminal device, and network device
KR102187669B1 (en) Method and apparatus for transmitting uplink control information (UCI)
CN116782393A (en) System information sending method and device
EP3952526A1 (en) Method and device for sending transmission, and storage medium
CN112583550B (en) Channel transmission method, terminal and base station
CN108605315B (en) Signal transmission method, signal transmission control method, user equipment and base station
US11296856B2 (en) Method for transmitting information and device
CN112449427A (en) Data transmission method of multi-sub-band communication system, electronic device and storage medium
CN112492696B (en) Uplink signal transmission method and device of communication system
JP6505269B2 (en) Wireless communication method, user equipment and base station supporting HARQ
WO2023131175A1 (en) Method for determining resource for prach repetition transmission, and terminal and network-side device
JP6280972B2 (en) Wireless communication method, user apparatus, and base station supporting HARQ
CN117015054A (en) Terminal operation method and device, terminal and network side equipment
WO2017132861A1 (en) Signal sending method, base station and user equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant