CN107734688B - Information sending method and sending equipment - Google Patents

Information sending method and sending equipment Download PDF

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Publication number
CN107734688B
CN107734688B CN201610879279.4A CN201610879279A CN107734688B CN 107734688 B CN107734688 B CN 107734688B CN 201610879279 A CN201610879279 A CN 201610879279A CN 107734688 B CN107734688 B CN 107734688B
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channel
channels
uci
uplink channels
control
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CN107734688A (en
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张雯
夏树强
梁春丽
石靖
韩祥辉
张文峰
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ZTE Corp
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ZTE Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

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

Abstract

The invention discloses an information sending method, which comprises the following steps: when the appointed transmission time of at least two uplink channels is overlapped, determining a transmission mode, and transmitting a target signal according to the transmission mode; the sending mode is preset and/or indicated by the base station; at least two uplink channels in the at least two uplink channels have different Transmission Time Interval (TTI) lengths corresponding to the at least two uplink channels; the uplink channel is a data channel or a control channel, and at least one control channel is arranged in the at least two uplink channels. The invention also discloses a transmitting device.

Description

Information sending method and sending equipment
Technical Field
The present invention relates to wireless communication technologies, and in particular, to an information sending method and a sending device.
Background
The rapid development of the mobile internet and the internet of things has led to the widespread rise of explosive growth and diversification of data traffic and differentiated services. The fifth generation mobile communication technology (5G) is a new generation mobile communication technology, and supports a higher rate (Gbps), a huge amount of links (1M/Km 2), an ultra-low time delay (1 ms), higher reliability, hundred times of energy efficiency improvement, and the like, as compared with the fourth generation mobile communication technology (4G) to support new demand changes. The ultra-low time delay is used as a key index of the 5G technology, and directly influences the development of time delay limited services such as the Internet of vehicles, industrial automation, remote control, smart power grids and the like. A current series of standard studies on 5G latency reduction are advancing gradually.
Reducing the transmission time interval (TTI, transmission Time Interval) is an important research direction for current delay reduction. When the TTI is reduced, the TTI lengths corresponding to the channels may be different when different channels are transmitted, and there is a situation that the channels with different TTI lengths overlap in transmission time, so how to transmit the channels is a problem to be solved at present.
Disclosure of Invention
In order to solve the existing technical problems, the embodiment of the invention provides an information sending method and sending equipment.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides an information sending method, which comprises the following steps:
when the appointed transmission time of at least two uplink channels is overlapped, determining a transmission mode, and transmitting a target signal according to the transmission mode; the sending mode is preset and/or indicated by the base station;
at least two uplink channels in the at least two uplink channels have different TTI lengths corresponding to the at least two uplink channels;
the uplink channel is a data channel or a control channel, and at least one control channel is arranged in the at least two uplink channels.
In the above solution, the sending the target signal includes:
Transmitting a first channel when the at least two uplink channels are on the same carrier;
the first channel is a control channel and is one of the following channels:
a channel with the minimum TTI length in the at least two uplink channels;
a control channel having a minimum TTI length among all control channels in the plurality of uplink channels;
when at least two control channels exist in the at least two uplink channels, the control channel with the earliest initial transmission symbol in the at least two control channels in the at least two uplink channels.
In the above scheme, the method further comprises:
giving up sending the second channel;
or ,
delaying a second channel until a contracted transmission time of the second channel and then sending the delayed second channel; wherein,
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
In the above scheme, the method further comprises:
when Uplink Control Information (UCI) is contained on a second channel, placing the UCI on the first channel for transmission; wherein,
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
In the above scheme, the method further comprises:
When the UCI is contained on the second channel, the UCI is contained in the appointed information, and the appointed information is placed on the first channel for transmission; wherein,
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
In the above scheme, the method further comprises:
when the second channel is a control channel, UCI on the second channel is put on the first channel for transmission; or alternatively, the process may be performed,
when a second channel contains UCI and the UCI contains designation information, transmitting the designation information on the first channel;
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
In the above solution, the sending the target signal includes:
transmitting a third channel when the at least two uplink channels are on the same carrier;
the third channel is a data channel and satisfies one of the following:
the third channel is the data channel with the minimum TTI length in all the data channels in the at least two uplink channels;
the third channel is the only data channel in the at least two uplink channels.
In the above scheme, the method further comprises:
And discarding transmission of an uplink channel except the third channel among the at least two uplink channels.
In the above scheme, the sending method further includes:
and when the fourth channel comprises UCI, writing UCI on the fourth channel into an interleaving matrix of the third channel, wherein the fourth channel is a control channel with a TTI length smaller than that of the third channel in the at least two uplink channels.
In the above scheme, the method further comprises:
and when the fourth channel comprises UCI and the UCI comprises appointed information, writing the appointed information into an interleaving matrix of the third channel, wherein the fourth channel is a control channel with a TTI length smaller than that of the third channel in the at least two uplink channels.
In the above scheme, the symbol corresponding to the position of the interleaving matrix written in the third channel is one of the following:
all or part of transmission symbols corresponding to the fourth channel;
the number of the fourth channels is at least two, and all or part of transmission symbols corresponding to the uplink channel with the shortest TTI length in the at least two fourth channels are transmission symbols.
In the above scheme, the method further comprises:
When the third channel contains UCI, and when the symbol corresponding to the fourth channel overlaps with the symbol where the UCI of the third channel is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the UCI of the third channel;
or ,
when the third channel contains UCI, the UCI of the third channel contains specified information, and the symbol corresponding to the fourth channel overlaps with the symbol where the specified information is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the specified information.
In the above scheme, the method further comprises:
when the third channel contains UCI and the symbol corresponding to the fourth channel is overlapped with the symbol of the UCI of the third channel, the position of the UCI of the fourth channel written into the interleaving matrix is staggered with the position corresponding to the UCI of the third channel; wherein,
the UCI of the third channel is at least one of:
RI/CRI;
CQI/PMI。
in the above scheme, the method further comprises:
when the third channel includes hybrid automatic repeat request acknowledgement (HARQ-ACK), and the symbol corresponding to the fourth channel overlaps with the symbol where the HARQ-ACK of the third channel is located, the HARQ-ACK is rewritten after the UCI of the fourth channel is written.
In the above solution, the sending the target signal includes:
transmitting a fifth channel when the at least two uplink channels are on the same carrier;
the fifth channel is a data channel, and the fifth channel is a channel with the smallest TTI length in the at least two uplink channels.
In the above scheme, the method further comprises:
and discarding transmission of an uplink channel other than the fifth channel among the at least two uplink channels.
In the above scheme, the method further comprises:
when the sixth channel contains UCI, writing UCI on the sixth channel into an interleaving matrix of the fifth channel;
or ,
when a sixth channel contains UCI and the UCI contains appointed information, writing the appointed information into an interleaving matrix of the fifth channel;
wherein the sixth channel is an uplink channel having a TTI length greater than the fifth channel in the at least two uplink channels.
In the above scheme, the method further comprises:
when the sixth channel contains UCI, writing UCI on the sixth channel into an interleaving matrix of the fifth channel;
or ,
when a sixth channel contains UCI and the UCI contains appointed information, writing the appointed information into an interleaving matrix of the fifth channel;
Wherein the sixth channel is a control channel having a TTI length greater than the fifth channel in the at least two uplink channels.
In the above solution, the sending the target signal includes:
when the at least two uplink channels are on the same carrier, only the seventh channel is transmitted on one transmission symbol, wherein,
the seventh channel satisfies one of the following conditions:
in the at least two uplink channels, only the agreed transmission time of the seventh channel includes the transmission symbol;
among the at least two uplink channels, the transmission symbol is included in the agreed transmission time of a plurality of uplink channels, and among the plurality of uplink channels, the TTI length corresponding to the seventh channel is the smallest; the seventh channel is a data channel;
the transmission symbol of the seventh channel is one symbol in a set of symbols contained in the contracted transmission times of the at least two uplink channels.
In the above scheme, the method further comprises:
if the eighth channel contains UCI or the symbols discarded from the nine channels contain UCI, the UCI is transmitted on the tenth channel;
or ,
and if the ninth channel contains UCI and the UCI contains the specified information, transmitting the specified information on the tenth channel.
Wherein the tenth channel is a channel having the shortest TTI length of the at least two uplink channels, and the ninth channel is a channel other than the seventh channel of the at least two uplink channels.
In the above solution, the sending the target signal includes:
and transmitting all data channels or part of data channels of the at least two uplink channels.
In the above scheme, the method further comprises:
an eleventh channel is transmitted.
Wherein the eleventh channel is a control channel and the eleventh channel has a minimum corresponding TTI length in all control channels of the at least two uplink channels.
In the above scheme, the method further comprises:
transmitting an eleventh channel when the data channel of the at least two uplink channels contains CQI/PMI and/or RI and the control channel of the at least two uplink channels contains other UCI besides CSI;
wherein the eleventh channel is a control channel and the tenth channel has a minimum corresponding TTI length among all control channels in the at least two uplink channels.
In the above scheme, the method further comprises:
and discarding the transmission of the uplink channels except for the eleventh channel and all or part of the data channels of the at least two uplink channels.
In the above scheme, the method further comprises:
UCI on control channels of the at least two uplink channels other than the eleventh channel is transmitted on the eleventh channel;
or, if UCI on a control channel other than the eleventh channel of the at least two uplink channels contains designation information, the designation information is transmitted on the eleventh channel.
In the above scheme, the method further comprises:
and when the data channel in the at least two uplink channels comprises CQI/PMI and the control channel in the at least two uplink channels comprises CSI, discarding the transmission of the CSI on the eleventh channel.
In the above solution, the sending the target signal includes:
transmitting a twelfth channel when at least one data channel exists in the at least two uplink channels; the twelfth channel is at least one of the at least one data channel.
In the above scheme, the method further comprises:
discarding the thirteenth channel;
or ,
determining to delay the thirteenth channel to the sixth channel for transmission after the agreed transmission time; wherein,
the thirteenth channel is the other channel than the twelfth channel among the at least two uplink channels.
In the above scheme, the method further comprises:
when UCI is included on a thirteenth channel and the twelfth channel is the same TTI length as the thirteenth channel, transmitting UCI on the twelfth channel;
or ,
when UCI is included on a thirteenth channel, the UCI including designation information, and the twelfth channel is the same as the TTI length of the thirteenth channel, the designation information is placed on the twelfth channel for transmission; wherein,
the thirteenth channel is a control channel of the at least two uplink channels.
In the above scheme, the method further comprises:
when the TTI length of at least two of the twelfth channels is the same as the TTI length of the thirteenth channel, determining the twelfth channel to transmit UCI by one of:
when one of at least two channels of the twelfth channel having the same TTI length as the thirteenth channel is transmitted on the primary carrier, determining that the twelfth channel transmitting UCI is: a channel on a primary carrier in at least two channels of the twelfth channel having a TTI length that is the same as the TTI length of the thirteenth channel;
when none of at least two channels of the twelfth channel having a TTI length equal to the TTI length of the thirteenth channel are transmitted on the primary carrier, determining that the twelfth channel transmitting UCI is: the channel on the subcarrier with the smallest or largest ScellIndex of at least two channels of the twelfth channel having the same TTI length as the thirteenth channel.
In the above scheme, the method further comprises:
the UCI on the fourteenth channel or the designation information in the UCI is put on the fifteenth channel to be transmitted; wherein,
the fourteenth channel is a control channel other than the thirteenth channel among the at least one control channel; the fifteenth channel is a data channel designated in at least two of the twelfth channels.
In the above solution, the number of the fourteenth channels is at least one, and the method further includes:
and when the TTI length of one channel in at least one fourteenth channel is smaller than that of the fifteenth channel, determining that the one channel is transmitted and the fifteenth channel is not transmitted on a transmission symbol corresponding to the one channel on the fifteenth channel, and transmitting the fifteenth channel on other symbols except for the transmission symbol corresponding to the one channel.
In the above scheme, the fifteenth channel is one of the following channels:
a data channel on a primary carrier;
when there is no data channel on the primary carrier, the data channel on the subcarrier with the smallest or largest ScellIndex;
and a data channel with the minimum TTI length in the data channels in the at least one uplink channel.
In the above solution, the sending the target signal includes:
Transmitting a sixteenth channel and a seventeenth channel when at least one data channel exists in the at least two uplink channels; the sixteenth channel is at least one of the at least one data channel; the seventeenth channel is a control channel with the smallest TTI length in all control channels in the at least two uplink channels.
In the above scheme, the method further comprises:
discarding transmission of the eighteenth channel;
or ,
delaying the eighteenth channel until the appointed transmission time of the eighteenth channel and then transmitting; wherein,
the eighteenth channel is the other uplink channel than the sixteenth channel and seventeenth channel among the at least two uplink channels.
In the above scheme, the method further comprises:
transmitting UCI on other control channels than the seventeenth channel among all control channels in the at least two uplink channels on the seventeenth channel;
or ,
UCI on other control channels than the seventeenth channel among all control channels in the at least two uplink channels includes designation information, and the designation information is transmitted on the seventeenth channel.
In the above solution, the sending the target signal includes:
Transmitting a nineteenth channel and a twentieth channel when at least one data channel exists in the at least two uplink channels; the nineteenth channel is at least one of the at least one data channel; the twentieth channel is the control channel with the shortest TTI length in other control channels except the twenty-first channel in all control channels in the at least two uplink channels; the twenty-first channel is a control channel of the same TTI length as the at least one data channel.
In the above scheme, the method further comprises:
and discarding transmission of channels other than the nineteenth channel and the twentieth channel.
In the above scheme, the method further comprises:
UCI on the twenty-first channel is transmitted on the nineteenth channel;
or ,
and if the UCI on the twenty-first channel contains the specified information, transmitting the specified information on the nineteenth channel.
In the above scheme, UCI or designation information on a twenty-first channel transmitted on the nineteenth channel is Channel State Information (CSI).
In the above scheme, when one data channel in the data channels with the same TTI length as the twenty-first channel is transmitted on the main carrier, the nineteenth channel is the data channel on the main carrier;
The nineteenth channel is the data channel on the subcarrier with the smallest or largest ScellIndex when none of the data channels of the same TTI length as the twenty-first channel are transmitted on the primary carrier.
In the above scheme, the information transmitted on the twentieth channel includes at least one of:
UCI on other control channels except the nineteenth channel and the twentieth channel in all control channels in the at least two uplink channels;
the specified information in UCI on other control channels except the nineteenth channel and the twentieth channel in all control channels in the at least two uplink channels;
and other information except the information transmitted on the nineteenth channel in UCI on the twenty-first channel.
In the above solution, the sending the target signal includes:
when the at least two uplink channels are both control channels, a twenty-second channel is sent on a designated carrier; the twenty-second channel is a control channel with the shortest TTI length in the at least two uplink channels.
In the above scheme, the method further comprises:
and discarding transmission of other channels than the twenty-second channel among the at least two uplink channels.
In the above scheme, the method further comprises:
UCI on other channels than the twenty-second channel among the at least two uplink channels is transmitted on the twenty-second channel;
or ,
the assignment information in UCI on the other channels than the twenty-second channel among the at least two uplink channels is transmitted on the fifteenth channel.
In the above scheme, the designated carrier is one of the following carriers:
a primary carrier;
the maximum or minimum subcarrier of ScellIndex.
In the above solution, the sending the target signal includes:
when the at least two uplink channels are both control channels, determining priority according to UCI carried by the control channels and/or TTI length of the control channels, selecting a control channel with highest priority for transmission, and discarding to transmit other control channels or deferring the other control channels to the appointed transmission time of the other control channels for transmission;
and the rest control channels are uplink channels except the control channel with the highest priority in the at least two uplink channels.
In the above scheme, the determining the priority according to the UCI carried by the control channel and/or the TTI length of the control channel includes at least one of:
The priority of the control channel carrying HARQ-ACK is higher than that of the control channel carrying CSI;
the control channel carrying the Scheduling Request (SR) has a higher priority than the control channel carrying the CSI;
under the condition that the carried UCI types are the same, the control channel with a short corresponding TTI length is higher in priority than the control channel with a long corresponding TTI length;
the control channel with a short corresponding TTI length carrying HARQ-ACK and/or SR has a higher priority than the control channel with a longer TTI length carrying HARQ-ACK and/or SR.
In the above scheme, the method further comprises:
and placing UCI on the rest channels on the control channel with the highest priority for transmission.
In the above scheme, the method further comprises:
and when the rest channels contain the specified information, the specified information is placed on the control channel with the highest priority for transmission.
In the above scheme, when the channel where the UCI is located is a data channel, the UCI includes at least one of the following information: HARQ-ACK, RI/CRI, CQI/PMI;
when the channel where the UCI is located is a control channel, the UCI includes at least one of the following information: HARQ-ACK, SR, CSI.
In the above scheme, the specified information is one of the following information:
HARQ-ACK;
At least one of HARQ-ACK and RI/CRI;
at least one of HARQ-ACK, RI/CRI, and CQI/PMI of a preset type.
In the above scheme, the specified information is one of the following information:
HARQ-ACK;
SR;
at least one of HARQ-ACK and SR;
at least one of CSI, HARQ-ACK and SR of a preset type.
In the above scheme, the at least two uplink channels are located on at least two carriers under carrier aggregation.
The embodiment of the invention also provides a transmitting device, which comprises:
a determining unit, configured to determine a transmission mode when the contracted transmission times of at least two uplink channels overlap;
a transmitting unit, configured to transmit a target signal according to the transmission mode; the sending mode is preset and/or indicated by the base station;
at least two uplink channels in the at least two uplink channels have different TTI lengths corresponding to the at least two uplink channels;
the uplink channel is a data channel or a control channel, and at least one control channel is arranged in the at least two uplink channels.
In the above solution, the at least two uplink channels are on the same carrier, and the sending unit is specifically configured to:
transmitting a first channel;
the first channel is a control channel and is one of the following channels:
A channel with the minimum TTI length in the at least two uplink channels;
a control channel having a minimum TTI length among all control channels in the plurality of uplink channels;
when at least two control channels exist in the at least two uplink channels, the control channel with the earliest initial transmission symbol in the at least two control channels in the at least two uplink channels.
In the above solution, the at least two uplink channels are on the same carrier, and the generating unit is specifically configured to:
transmitting a third channel;
the third channel is a data channel and satisfies one of the following:
the third channel is the data channel with the minimum TTI length in all the data channels in the at least two uplink channels;
the third channel is the only data channel in the at least two uplink channels.
In the above solution, the sending unit is specifically configured to:
transmitting a fifth channel when the at least two uplink channels are on the same carrier;
the fifth channel is a data channel, and the fifth channel is a channel with the smallest TTI length in the at least two uplink channels.
In the above solution, the sending unit is specifically configured to:
When the at least two uplink channels are on the same carrier, only the eighth channel is transmitted on one transmission symbol, wherein,
the eighth channel satisfies one of the following conditions:
in the at least two uplink channels, only the agreed transmission time of the eighth channel includes the transmission symbol;
among the at least two uplink channels, the transmission symbols are included in the agreed transmission time of a plurality of uplink channels, and among the plurality of uplink channels, the TTI length corresponding to the eighth channel is the smallest; the seventh channel is a data channel;
the transmission symbol of the eighth channel is one symbol in a symbol set included in the contracted transmission time of the at least two uplink channels.
In the above solution, the sending unit is specifically configured to:
and transmitting all data channels or part of data channels of the at least two uplink channels.
In the above solution, the sending unit is specifically configured to:
transmitting a twelfth channel when at least one data channel exists in the at least two uplink channels; the twelfth channel is at least one of the at least one data channel.
In the above solution, the sending unit is specifically configured to:
Transmitting a sixteenth channel and a seventeenth channel when at least one data channel exists in the at least two uplink channels; the sixteenth channel is at least one of the at least one data channel; the seventeenth channel is a control channel with the smallest TTI length in all control channels in the at least two uplink channels.
In the above solution, the sending unit is specifically configured to:
transmitting a nineteenth channel and a twentieth channel when at least one data channel exists in the at least two uplink channels; the nineteenth channel is at least one of the at least one data channel; the twentieth channel is the control channel with the shortest TTI length in other control channels except the twenty-first channel in all control channels in the at least two uplink channels; the twenty-first channel is a control channel of the same TTI length as the at least one data channel.
In the above solution, the sending unit is specifically configured to:
when the at least two uplink channels are both control channels, a twenty-second channel is sent on a designated carrier; the twenty-second channel is a control channel with the shortest TTI length in the at least two uplink channels.
In the above solution, the sending unit is specifically configured to:
when the at least two uplink channels are both control channels, determining priority according to UCI carried by the control channels and/or TTI length of the control channels, selecting a control channel with highest priority for transmission, and discarding to transmit other control channels or deferring the other control channels to the appointed transmission time of the other control channels for transmission;
and the rest control channels are uplink channels except the control channel with the highest priority in the at least two uplink channels.
According to the information sending method and the information sending equipment provided by the embodiment of the invention, when the appointed transmission time of at least two uplink channels is overlapped, a sending mode is determined, and a target signal is sent according to the sending mode; the sending mode is preset and/or indicated by the base station; at least two uplink channels in the at least two uplink channels have different Transmission Time Interval (TTI) lengths corresponding to the at least two uplink channels; the uplink channels are data channels or control channels, and at least one control channel is arranged in the at least two uplink channels, so that when channels with different TTI lengths are overlapped in transmission time, the transmission of each channel can be effectively realized.
Drawings
In the drawings (which are not necessarily drawn to scale), like numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different instances of similar components. The drawings illustrate generally, by way of example and not by way of limitation, various embodiments discussed herein.
FIG. 1 is a flow chart of an information sending method according to an embodiment of the invention;
fig. 2 is a schematic diagram of overlapping transmission times of a control channel and a data channel according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a channel with different transmission symbols according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a fourth interleaving matrix according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a position of a control channel occupying an interleaving matrix according to a fourth embodiment of the present invention;
fig. 6 is a diagram of a fourth embodiment of the present invention with a plurality of control channel transmission symbols;
fig. 7 is a schematic diagram of a transmission symbol corresponding to a fifth data channel according to an embodiment of the present invention;
fig. 8 is a schematic diagram of transmission symbols corresponding to each information on a data channel in a fifth embodiment of the present invention;
fig. 9 is a schematic diagram of transmission symbols of each data channel where a fifth DMRS is located in an embodiment of the present invention;
fig. 10 is a schematic diagram of a fifth embodiment of a transmission symbol of a plurality of channels;
Fig. 11 is a schematic structural diagram of a fourteenth transmitting device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The reduction of the TTI is taken as an important research direction for reducing the current time delay, and aims to reduce the TTI with the length of 1ms to the length of 0.5ms or even 1-2 Orthogonal Frequency Division Multiplexing (OFDM) symbols, so that the minimum scheduling time is reduced exponentially, and the single transmission time delay can be reduced exponentially under the condition of not changing the frame structure. Currently, the third generation partnership project (3 GPP) has also discussed short (short) TTI (sTTI) delay reduction techniques.
When the TTI is reduced, the TTI length corresponding to each channel may be different when different channels are transmitted, and there may be a case where the channels with different TTI lengths overlap in transmission time, where there is no solution yet for how to transmit the channels. In particular, in short TTI technology, a User Equipment (UE) needs to support an sTTI and an existing 1ms length TTI between which the UE can dynamically switch. When a channel of a short TTI and a channel of a 1ms TTI overlap in transmission time, how to perform channel transmission has not yet been an effective solution, which is a problem to be solved at present.
Based on this, in various embodiments of the invention: when the appointed transmission time of at least two uplink channels is overlapped, the transmitting equipment determines a transmitting mode and transmits a target signal according to the transmitting mode; the sending mode is preset and/or indicated by the base station; at least two uplink channels in the at least two uplink channels have different TTI lengths corresponding to the at least two uplink channels; the uplink channel is a data channel or a control channel, and at least one control channel is arranged in the at least two uplink channels.
Example 1
The embodiment of the invention provides an information sending method which is applied to sending equipment. In particular, the transmitting device may be a UE.
Fig. 1 is a flowchart of a method for transmitting information according to an embodiment of the present invention. As shown in fig. 1, the method comprises the steps of:
step 101: when the appointed transmission time of at least two uplink channels is overlapped, determining a transmission mode;
here, the uplink refers to a direction in which a transmitting device (e.g., UE) transmits information to a base station (e.g., evolved node B (eNB), etc.).
At least two uplink channels in the at least two uplink channels have different Transmission Time Interval (TTI) lengths corresponding to the at least two uplink channels; the uplink channel is a data channel or a control channel, and at least one control channel is arranged in the at least two uplink channels.
The transmission mode is preset and/or indicated by the base station.
Step 102: and transmitting the target signal according to the transmission mode.
Here, in an embodiment, when the at least two uplink channels are on the same carrier, the specific implementation of this step in this case may include:
transmitting a first channel;
the first channel is a control channel and is one of the following channels:
a channel with the minimum TTI length in the at least two uplink channels;
a control channel having a minimum TTI length among all control channels in the plurality of uplink channels;
when at least two control channels exist in the at least two uplink channels, the control channel with the earliest initial transmission symbol in the at least two control channels in the at least two uplink channels.
Wherein, when generating the transmission target channel, the method may further include:
giving up sending the second channel; or, deferring the second channel until after the contracted transmission time of the second channel; wherein,
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
In practical application, when UCI is included on the second channel, UCI is placed on the first channel to be transmitted.
Here, it should be noted that: in practical application, the number of the second channels may be more than one, and the number of the second channels is determined according to the needs.
In practical application, when UCI is included on the second channel and the UCI includes the specified information, the specified information is placed on the first channel to be transmitted.
In addition, when the second channel is a control channel, UCI on the second channel is put on the first channel for transmission; or alternatively, the process may be performed,
when the UCI of the second channel is included and the UCI includes designation information, the designation information is placed on the first channel to be transmitted.
Here, when the sum of the number of bits (bits) of the UCI transmitted and the number of bits on the first channel exceeds the number of bits that can be supported by the first channel, the HARQ-ACK bundling technique may be used for processing.
In an embodiment, when the at least two uplink channels are on the same carrier, the implementation of this step may include:
transmitting a third channel;
the third channel is a data channel and satisfies one of the following:
the third channel is the data channel with the minimum TTI length in all the data channels in the at least two uplink channels;
the third channel is the only data channel in the at least two uplink channels.
Wherein, when sending the target signal, the method may further include:
and discarding transmission of an uplink channel except the third channel among the at least two uplink channels.
In addition, in practical application, when sending the target signal, the method may further include:
and when the fourth channel comprises UCI, writing UCI on the fourth channel into an interleaving matrix of the third channel, wherein the fourth channel is a control channel with a TTI length smaller than that of the third channel in the at least two uplink channels.
Here, when the fourth channel contains UCI and the UCI contains designation information, the designation information is written in an interleaving matrix of the third channel.
Wherein the symbol corresponding to the position of the interleaving matrix written in the third channel is one of the following:
all or part of transmission symbols corresponding to the fourth channel;
the number of the fourth channels is at least two, and all or part of transmission symbols corresponding to the uplink channel with the shortest TTI length in the at least two fourth channels are transmission symbols.
Here, it should be noted that: the partial transmission symbol may be a partial transmission symbol preset in all symbols corresponding to the fourth channel, or may also be a transmission symbol not corresponding to a demodulation reference signal (DMRS) of the third channel.
Wherein, since the interleaving matrix does not include transmission symbols corresponding to the DMRS, transmission symbols overlapping with the DMRS in the fourth channel UCI are not written into the position of the interleaving matrix of the third channel.
When transmitting the target signal, the method may further include:
when the third channel contains UCI, and when the symbol corresponding to the fourth channel overlaps with the symbol where the UCI of the third channel is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the UCI of the third channel;
or ,
when the third channel contains UCI, the UCI of the third channel contains specified information, and the symbol corresponding to the fourth channel overlaps with the symbol where the specified information is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the specified information.
In addition, when the third channel includes UCI and the symbol corresponding to the fourth channel overlaps with the symbol where the UCI of the third channel is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the UCI of the third channel; wherein,
the UCI of the third channel is at least one of:
RI/CRI;
CQI/PMI。
In practical application, when the third channel contains HARQ-ACK, and the symbol corresponding to the fourth channel overlaps the symbol where the HARQ-ACK of the third channel is located, the HARQ-ACK is written after the UCI of the fourth channel is written.
In an embodiment, when the at least two uplink channels are on the same carrier, the implementation of this step may include:
transmitting a fifth channel;
the fifth channel is a data channel, and the fifth channel is a channel with the smallest TTI length in the at least two uplink channels.
Wherein, when sending the target signal, the method may further include:
and discarding transmission of an uplink channel other than the fifth channel among the at least two uplink channels.
When the sixth channel contains UCI, writing UCI on the sixth channel into the interleaving matrix of the fifth channel;
or ,
when a sixth channel contains UCI and the UCI contains appointed information, writing the appointed information into an interleaving matrix of the fifth channel;
wherein the sixth channel is an uplink channel having a TTI length greater than the fifth channel in the at least two uplink channels.
Here, when the sixth channel contains UCI, writing UCI on the sixth channel into an interleaving matrix of the fifth channel; or alternatively, the process may be performed,
When the sixth channel includes UCI and the UCI includes designation information, the designation information is written into an interleaving matrix of the fifth channel.
In an embodiment, when the at least two uplink channels are on the same carrier, the implementation of this step may include:
when the at least two uplink channels are on the same carrier, only the seventh channel is transmitted on one transmission symbol, wherein,
the seventh channel satisfies one of the following conditions:
in the at least two uplink channels, only the agreed transmission time of the seventh channel includes the transmission symbol;
among the at least two uplink channels, the transmission symbol is included in the agreed transmission time of a plurality of uplink channels, and among the plurality of uplink channels, the TTI length corresponding to the seventh channel is the smallest; the seventh channel is a data channel;
the transmission symbol of the seventh channel is one symbol in a set of symbols contained in the contracted transmission times of the at least two uplink channels.
In practical application, the method can further comprise:
if the eighth channel contains UCI or the symbols discarded from the nine channels contain UCI, the UCI is transmitted on the tenth channel;
or ,
and if the ninth channel contains UCI and the UCI contains the specified information, transmitting the specified information on the tenth channel.
Wherein the tenth channel is a channel having the shortest TTI length of the at least two uplink channels, and the ninth channel is a channel other than the seventh channel of the at least two uplink channels.
In one embodiment, the implementation of this step may include:
and transmitting all data channels or part of data channels of the at least two uplink channels.
Here, in practical application, when the target signal is transmitted, the method may further include:
an eleventh channel is transmitted.
Wherein the eleventh channel is a control channel and the eleventh channel has a minimum corresponding TTI length in all control channels of the at least two uplink channels.
In practical application, when sending the target signal, the method may further include:
transmitting an eleventh channel when the data channel of the at least two uplink channels contains CQI/PMI and/or RI and the control channel of the at least two uplink channels contains other UCI besides CSI;
wherein the eleventh channel is a control channel and the tenth channel has a minimum corresponding TTI length among all control channels in the at least two uplink channels.
The method may further comprise:
and discarding the transmission of the uplink channels except for the eleventh channel and all or part of the data channels of the at least two uplink channels.
In practical application, the method can further comprise:
UCI on control channels of the at least two uplink channels other than the eleventh channel is transmitted on the eleventh channel;
or, if UCI on a control channel other than the eleventh channel of the at least two uplink channels contains designation information, the designation information is transmitted on the eleventh channel.
The method may further comprise:
and when the data channel in the at least two uplink channels comprises CQI/PMI and the control channel in the at least two uplink channels comprises CSI, discarding the transmission of the CSI on the eleventh channel.
In an embodiment, at least two uplink channels with overlapping contracted transmission times are located on at least two carriers under Carrier Aggregation (CA), that is, in a CA scenario, the specific implementation of this step may include:
judging whether at least one data channel exists in the at least two uplink channels or not;
Transmitting a twelfth channel when at least one data channel exists; the twelfth channel is at least one of the at least one data channel.
Wherein, when sending the target signal, the method may further include:
discarding the thirteenth channel;
or ,
determining to delay the thirteenth channel to the sixth channel for transmission after the agreed transmission time; wherein,
the thirteenth channel is the other channel than the twelfth channel among the at least two uplink channels.
Here, when UCI is included on a thirteenth channel and TTI lengths of the twelfth channel and the thirteenth channel are the same, UCI on the thirteenth channel is put for transmission on the twelfth channel;
or ,
when UCI is included on a thirteenth channel, the UCI including designation information, and the twelfth channel is the same as the TTI length of the thirteenth channel, the designation information is placed on the twelfth channel for transmission; wherein,
the thirteenth channel is a control channel of the at least two uplink channels.
The method may further comprise:
when the TTI length of at least two of the twelfth channels is the same as the TTI length of the thirteenth channel, determining the twelfth channel to transmit UCI by one of:
When one of at least two channels of the twelfth channel having the same TTI length as the thirteenth channel is transmitted on the primary carrier, determining that the twelfth channel transmitting UCI is: a channel on a primary carrier in at least two channels of the twelfth channel having a TTI length that is the same as the TTI length of the thirteenth channel;
when none of at least two channels of the twelfth channel having a TTI length equal to the TTI length of the thirteenth channel are transmitted on the primary carrier, determining that the twelfth channel transmitting UCI is: the channel on the subcarrier with the smallest or largest ScellIndex of at least two channels of the twelfth channel having the same TTI length as the thirteenth channel.
In an embodiment, at least two uplink channels with overlapping contracted transmission times are located on at least two carriers under Carrier Aggregation (CA), in other words, in a CA scenario, the specific implementation of this step may include:
judging whether at least one data channel exists in the at least two uplink channels or not;
transmitting a sixteenth channel and a seventeenth channel when at least one data channel exists; the sixteenth channel is at least one of the at least one data channel; the seventeenth channel is a control channel with the smallest TTI length in all control channels in the at least two uplink channels.
Wherein, when generating the transmission target signal, the method may further include:
discarding transmission of the eighteenth channel;
or ,
delaying the eighteenth channel until the appointed transmission time of the eighteenth channel and then transmitting; wherein,
the eighteenth channel is the other uplink channel than the sixteenth channel and seventeenth channel among the at least two uplink channels.
Here, in practical application, the method may further include:
transmitting UCI on other control channels than the seventeenth channel among all control channels in the at least two uplink channels on the seventeenth channel;
or ,
UCI on other control channels than the seventeenth channel among all control channels in the at least two uplink channels includes designation information, and the designation information is transmitted on the seventeenth channel.
In an embodiment, at least two uplink channels with overlapping contracted transmission times are located on at least two carriers under carrier aggregation, in other words, in a CA scenario, the specific implementation of this step may include:
judging whether at least one data channel exists in the at least two uplink channels or not;
transmitting a nineteenth channel and a twentieth channel when at least one data channel is present; the nineteenth channel is at least one of the at least one data channel; the twentieth channel is the control channel with the shortest TTI length in other control channels except the twenty-first channel in all control channels in the at least two uplink channels; the twenty-first channel is a control channel of the same TTI length as the at least one data channel.
Wherein, when sending the target signal, the method may further include:
and discarding transmission of channels other than the nineteenth channel and the twentieth channel.
In practical applications, UCI or assignment information on the twenty-first channel transmitted on the nineteenth channel is Channel State Information (CSI).
Wherein, when one of the data channels with the same TTI length as the twenty-first channel is transmitted on the main carrier, the nineteenth channel is the data channel on the main carrier;
the nineteenth channel is the data channel on the subcarrier with the smallest or largest ScellIndex when none of the data channels of the same TTI length as the twenty-first channel are transmitted on the primary carrier.
In practical application, the information sent on the twentieth channel includes at least one of:
UCI on other control channels except the nineteenth channel and the twentieth channel in all control channels in the at least two uplink channels;
the specified information in UCI on other control channels except the nineteenth channel and the twentieth channel in all control channels in the at least two uplink channels;
and other information except the information transmitted on the nineteenth channel in UCI on the twenty-first channel.
In an embodiment, at least two uplink channels with overlapping contracted transmission times are located on at least two carriers under CA, in other words, in the CA scenario, the specific implementation of this step may include:
judging whether the at least two uplink channels are control channels or not;
when the control channels are all control channels, a twenty-second channel is sent on a designated carrier; the twenty-second channel is a control channel with the shortest TTI length in the at least two uplink channels.
Wherein, when sending the target signal, the method may further include:
and discarding transmission of other channels than the twenty-second channel among the at least two uplink channels.
When transmitting the target signal, the method may further include:
UCI on other channels than the twenty-second channel among the at least two uplink channels is transmitted on the twenty-second channel;
or ,
the assignment information in UCI on the other channels than the twenty-second channel among the at least two uplink channels is transmitted on the fifteenth channel.
Wherein the designated carrier is one of the following carriers:
a primary carrier;
the maximum or minimum subcarrier of ScellIndex.
In one embodiment, the implementation of this step may include:
When the at least two uplink channels are both control channels, determining priority according to UCI carried by the control channels and/or TTI length of the control channels, selecting a control channel with highest priority for transmission, and discarding to transmit other control channels or deferring the other control channels to the appointed transmission time of the other control channels for transmission;
and the rest control channels are uplink channels except the control channel with the highest priority in the at least two uplink channels.
Wherein said determining a priority according to UCI carried by said control channel and/or a TTI length of said control channel comprises at least one of:
the priority of the control channel carrying HARQ-ACK is higher than that of the control channel carrying CSI;
the priority of the control channel carrying the SR is higher than that of the control channel carrying the CSI;
under the condition that the carried UCI types are the same, the control channel with a short corresponding TTI length is higher in priority than the control channel with a long corresponding TTI length;
the control channel with a short corresponding TTI length carrying HARQ-ACK and/or scheduling request SR has a higher priority than the control channel with a longer TTI length carrying HARQ-ACK and/or SR.
Here, the method may further include:
and placing UCI on the rest channels on the control channel with the highest priority for transmission.
Wherein the method may further comprise:
and when the rest channels contain the specified information, the specified information is placed on the control channel with the highest priority for transmission.
It should be noted that: in practical application, when the channel where the UCI is located is a data channel, the UCI may include at least one of the following information: HARQ-ACK, RI/CRI, CQI/PMI.
When the channel where the UCI is located is a control channel, the UCI includes at least one of the following information: HARQ-ACK, SR, CSI.
When the channel where the UCI is located is a data channel, the specific information is one of the following information:
HARQ-ACK;
at least one of HARQ-ACK and RI/CRI;
at least one of HARQ-ACK, RI/CRI, and CQI/PMI of a preset type.
When the channel where the UCI is located is a control channel, the specified information is one of the following information:
HARQ-ACK;
SR;
at least one of HARQ-ACK and SR;
at least one of CSI, HARQ-ACK and SR of a preset type.
It should be noted that: in practical applications, the receiving device (such as a base station) also knows the transmission mode of the transmitting device, and receives the corresponding target signal in the same manner as the transmission mode of the transmitting device.
According to the information sending method provided by the embodiment of the invention, when the appointed transmission time of at least two uplink channels is overlapped, a sending mode is determined, and a target signal is sent according to the sending mode; the sending mode is preset and/or indicated by the base station; at least two uplink channels in the at least two uplink channels have different Transmission Time Interval (TTI) lengths corresponding to the at least two uplink channels; the uplink channels are data channels or control channels, and at least one control channel is arranged in the at least two uplink channels, so that when channels with different TTI lengths are overlapped in transmission time, the transmission of each channel can be effectively realized.
The following takes the control channel as a physical uplink control channel (PUCCH, physical Uplink Control CHannel), the data channel as a physical uplink shared channel (PUSCH, physical Uplink Shared CHannel) as an example, and the procedure of channel transmission is described in detail in embodiments twenty-two to twelve on the basis of embodiment one.
It should be noted that: in embodiments two to twelve, the PUCCH of the sTTI may also be referred to as a sPUCCH, and the PUSCH of the sTTI may also be referred to as a PUSCH.
Example two
The present embodiment provides a channel transmission method when the scheduled transmission times of the PUSCH and the PUCCH overlap on one carrier, where the TTI lengths corresponding to the two channels are different. Here, the length of the TTI may be a 1ms TTI in an existing Long Term Evolution (LTE) system, or the TTI may include 2 transmission symbols, 4 transmission symbols, 7 transmission symbols, or the like. Wherein 2, 4, or 7 transmission symbols may be physically contiguous or non-contiguous. For example, when the TTI length is 2 transmission symbols, the DMRS of the PUSCH is transmitted on the first transmission symbol in a subframe, and the uplink data is transmitted on the third transmission symbol in the subframe. The TTI length in practical applications is not limited to the TTI length described in this embodiment. In this embodiment, a TTI having a length of less than 1ms is referred to as an sTTI. In this embodiment, the TTI length of PUSCH is greater than the TTI length of PUCCH. For example, the TTI length of PUSCH is 1ms, and the TTI length of pucch is 4 transmission symbols; alternatively, the TTI length of PUSCH is 4 transmission symbols and the TTI length of PUCCH is 2 transmission symbols. The present embodiment will be described taking, as an example, a scenario in which the transmission times of the PUSCH in the 1ms TTI and the PUCCH in the sTTI overlap. The method in this embodiment may also be used in application scenarios for other TTI lengths. Fig. 2 shows a schematic diagram when there is an overlap in the transmission times of PUSCH and sPUCCH. Wherein, the UE detects the uplink grant in subframe n, the UE will send PUSCH in subframe n+4, and in subframe n+3, the UE receives the sPDSCH again, and needs to send pucch in subframe n+4.
For this case, there may be several implementations:
in the first way, the sPUCCH and PUSCH are transmitted simultaneously, i.e. the UE sends 2 channels simultaneously on the transmission symbol where the sPUCCH is located.
Wherein, the frequency domain resources corresponding to the sPUCCH and the PUSCH are not overlapped. The method can also be used for transmitting more than two channels simultaneously when the agreed transmission time of the more than two channels is overlapped.
In the second way, if the sPUCCH contains CSI, the CSI is sent on the PUSCH, for example, written into an interleaving matrix of the PUSCH, where the written position may be a transmission symbol position corresponding to the sPUCCH. If there is other information than CSI on the sPUCCH, then the other information is put on the sPUCCH for transmission. If no other information is available, no sPUCCH is sent and only PUSCH is sent.
Here, in practical application, if there is periodic CSI on the sPUCCH and aperiodic CSI on the PUSCH, the CSI on the sPUCCH gives up transmission. If there is other information than CSI on the sPUCCH, then the other information is put on the sPUCCH for transmission. If no other information exists, the sPUCCH channel is not transmitted, and only the PUSCH is transmitted.
Example III
Similar to the embodiment, this embodiment presents a channel transmission method when the scheduled transmission times of PUSCH and PUCCH overlap on one carrier, where the TTI lengths corresponding to the two channels are different.
In this embodiment, the TTI length of PUSCH is greater than the TTI length of PUCCH. The present embodiment is described taking a scenario in which there is an overlap between the transmission time of PUSCH in 1ms TTI and PUCCH in sTTI as an example, and the method in the present embodiment may be used for other TTI lengths.
For this case, there may be several implementations:
in the first way, the UE transmits the sPUCCH and relinquishes transmitting the PUSCH.
Optionally, when the PUSCH contains UCI, all or part of the information of the UCI is transmitted on the sPUCCH. Here, the UCI includes at least one of: CQI and/or PMI (in the present invention, CQI/PMI), HARQ-ACK, RI, and CRI, wherein HARQ-ACK is feedback information of downlink data, such as 1bit ACK/NACK. The RI may be one of: only the joint reporting of RI, RI and i1, the joint reporting of CRI (CSI-RS resource indication ) and RI, the joint reporting of CRI, RI and i1, the joint reporting of CRI, RI and PTI (Precoding Type Indicator, precoding type indication), and the joint reporting of RI and PTI. Wherein i1 is Wideband first PMI i1. In practice, this information is not limited thereto. Optionally, if the UCI contains HARQ-ACK, the HARQ-ACK is placed on the sPUCCH for transmission, and if the UCI also contains other information, transmission of other information is abandoned.
Optionally, if the UCI contains HARQ-ACK and/or RI/CRI, the HARQ-ACK and/or RI is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of other information is abandoned. For example, when UCI has HARQ-ACK and RI/CRI and CQI/PMI, HARQ-ACK and RI/CRI may be put on the sPUCCH for transmission and CQI/PMI may be discarded for transmission.
Optionally, if the UCI includes at least one of HARQ-ACK, RI/CRI, and CQI/PMI of a preset type, the at least one of HARQ-ACK, RI/CRI, and CQI/PMI of a preset type is placed on the sPUCCH to be transmitted, and transmission of other information is abandoned.
The preset type CQI/PMI may be a CQI/PMI of some formats, such as a wideband CQI/PMI, etc. For example, when the UCI contains HARQ-ACK and RI/CRI and narrowband CQI/PMI, the HARQ-ACK and RI/CRI may be put on the sPUCCH for transmission and the narrowband CQI/PMI relinquishes transmission.
When transmission processing is performed, if the sum of the number of bits of the UCI and the number of bits on the sPUCCH exceeds the number of bits that can be supported by the sPUCCH, an HARQ-ACK bundling technique may be used.
The information in UCI of PUSCH that is relinquished from transmission may be transmitted on the next scheduled PUSCH.
In the second way, the UE transmits the sPUCCH and defers PUSCH transmission.
For example, deferring PUSCH to the first subframe to be transmitted without PUSCH, such as in fig. 2, when subframe n+5 has no PUSCH and spcch to be transmitted, then transmitting PUSCH to be deferred in subframe n+5, if subframe n+5 has PUSCH and/or spcch to be transmitted, then deferring continues backwards until there is no subframe for PUSCH to be transmitted. In practical application, when there are more than two uplink channels with overlapping transmission times, one of them is PUCCH, and the TTI length of the PUCCH is the shortest, the above method may be similarly adopted. In order to ensure the time delay performance of the PUSCH with a shorter TTI length, the PUSCH with the shortest TTI length in the PUSCH and the PUCCH are processed in the above manner. Alternatively, the remaining PUSCH may relinquish the transmission or defer the transmission. Such as the pucch with 2 transmission symbols and the pusch with 4 transmission symbols in fig. 3, are processed according to the method in the present embodiment.
When there is an overlap between the transmission time of one PUCCH and the transmission time of multiple PUSCHs, where the TTI length corresponding to the PUCCH is the smallest, as shown in fig. 3, only the PUCCH is transmitted, and other channels are abandoned. Optionally, UCI on multiple PUSCHs is put on PUCCH for transmission, or UCI of a specified type is put on PUCCH only for transmission. Similar to the previous description, the UCI of the specified type is, for example, HARQ-ACK, or at least one of HARQ-ACK and RI/CRI, or at least one of HARQ-ACK, RI/CRI, and preset type CQI/PMI. For example, HARQ-ARQ is put only on sPUCCH for transmission. The practical application is not limited to this way, and for example, at least one of HARQ-ARQ and RI may be put on the sPUCCH for transmission.
When there is an overlap in transmission time of multiple PUCCHs, one or more PUSCHs, where the TTI length is the smallest is one of the PUCCHs. Then the PUCCH with the smallest TTI length is transmitted and UCI on other PUCCHs or UCI of a specified type is transmitted on the PUCCH with the smallest TTI length. Relinquishing transmission of the other channel or deferring transmission of the other channel. Optionally, when UCI is on PUSCH, the UCI or the UCI of the specified type is transmitted on PUCCH with the smallest TTI length. Here, UCI on the PUCCH includes at least one of CSI, SR, and HARQ-ACK. The specified type of UCI may be HARQ-ACK, or SR and HARQ-ACK, or at least one of preset types of CSI, SR and HARQ-ACK. The preset type of CSI here may be wideband CSI or others, and the definition is also used in the latter embodiments. For example, there is a 2-symbol PUCCH, a 4-symbol PUSCH, a 7-symbol PUCCH, and a 1ms PUSCH, and then only the 2-symbol PUCCH is transmitted. UCI on other PUCCHs and PUSCHs may be transmitted on a 2-symbol PUCCH.
When there is an overlap in transmission time of multiple PUCCHs, one or multiple PUSCHs, where the TTI length is the smallest is PUSCH, then only one PUCCH with the smallest TTI length of the multiple PUCCHs is transmitted, and UCI on other PUCCHs or UCI of a specified type is transmitted on the PUCCH with the smallest TTI length. The transmission of the remaining channels is abandoned or deferred. Optionally, when UCI is on PUSCH, the UCI or the UCI of the specified type is transmitted on PUCCH with the smallest TTI length. For example, there is a 2-symbol PUSCH, a 4-symbol PUCCH, a 7-symbol PUCCH, and a 1ms PUSCH, and then only the 4-symbol PUCCH is transmitted. UCI on other PUCCHs and PUSCHs may be transmitted on a 2-symbol PUCCH.
Example IV
In this embodiment, similar to the embodiment, in the channel transmission method when the scheduled transmission times of the PUSCH and the PUCCH overlap on one carrier, the TTI lengths corresponding to the two channels are different.
In this embodiment, the TTI length of PUSCH is greater than the TTI length of PUCCH. The present embodiment is described taking a scenario in which there is an overlap between the transmission time of PUSCH in 1ms TTI and PUCCH in sTTI as an example, and the method in the present embodiment may be used for other TTI lengths.
For this case, in the present embodiment, only PUSCH is transmitted. Specifically, UCI on a sPUCCH is punctured for transmission on an interleaving matrix of PUSCH before a Discrete Fourier Transform (DFT) operation. Here, UCI on a sPUCCH may also be referred to as covering part of the information on PUSCH in an interleaving matrix.
An example is given below. The transmission time corresponding to the PUSCH is the subframe n, and the transmission time corresponding to the sPUCCH is the first two transmission symbols on the subframe n, so in the interleaving matrix of the PUSCH, the columns corresponding to the first two transmission symbols are covered by UCI on the sPUCCH.
Alternatively, UCI on the sPUCCH may occupy data on an interleaving matrix corresponding to a transmission symbol corresponding to the sPUCCH. For example, the interleaving matrix of PUSCH is (R mux ×C mux ) R, R is a matrix of (2) mux Is the number of lines, C mux As shown in fig. 4. In FIG. 4, each element in the matrix is interleavedy i (i is an integer and 0.ltoreq.i.ltoreq.R '' mux ×C mux -1)) is 1 column (Q) m ·N L ) Vector of rows. R's' mux =R mux /(Q m ·N L), wherein ,Qm For modulating order, N L Is the number of layers.
Figure BDA0001125707760000291
The number of symbols transmitted on PUSCH does not include symbols for transmitting DMRS, and if SRS is present, symbols for transmitting SRS are not included.
Since the sPUCCH occupies the first two transmission symbols in the interleaving matrix, the sPUCCH will cover the PUSCH information on the columns corresponding to the first two symbols in the interleaving matrix, i.e. cover the first two columns. As shown in fig. 5.
Optionally, when the transmission symbol corresponding to the sPUCCH includes a transmission symbol in which the DMRS of the PUSCH is located, the DMRS of the PUSCH is still transmitted on the transmission symbol in which the DMRS of the PUSCH is located.
More specifically, when the transmission symbol corresponding to the sPUCCH and the transmission symbol corresponding to the DMRS of the PUSCH do not overlap, only the DMRS corresponding to the PUSCH is transmitted on the subframe; when the transmission symbol corresponding to the sPUCCH overlaps with the transmission symbol corresponding to the DMRS of the PUSCH, the DMRS of the PUSCH is still transmitted on the transmission symbol corresponding to the DMRS of the PUSCH. And the sPUCCH is only sent on the symbols corresponding to other sPUCCHs except the transmission symbol where the DMRS is located.
Optionally, the number of resources occupied by UCI on the sPUCCH is eNB configured, e.g., parameters in the formula for calculating the number of resources occupied by the sPUCCH are eNB configured.
Optionally, when UCI on the sPUCCH is written into the PUSCH interleaving matrix, writing is performed in a preset manner, for example, writing from top to bottom, or writing from bottom to top, and so on.
Alternatively, UCI on the sPUCCH may be sent on all transport blocks of PUSCH or may also be sent on one of 2 transport blocks of PUSCH. In an embodiment, UCI on the sPUCCH is sent on a transport block with a larger Modulation and Coding Scheme (MCS) index value, and when the MCS index values of two transport blocks are the same, the UCI may be sent on a preset transport block, such as the first transport block, etc.
Alternatively, when transmitted in 1 transport block of PUSCH, it may be transmitted on all layers to which the transport block corresponds, or on a part of the layers. Such as repeated transmissions on all layers on a transport block of PUSCH.
Optionally, when UCI is included on PUSCH, UCI corresponding information on PUSCH should be skipped when UCI information in sPUCCH is written.
Optionally, when there is at least one of RI/CRI and CQI/PMI on PUSCH, UCI of the sPUCCH cannot cover part or all of the information of at least one of RI/CRI and CQI/PMI, i.e. cover information of PUSCH outside part or all of the information of at least one of RI/CRI and CQI/PMI, i.e. rate match outside part or all of the information of at least one of RI/CRI and CQI/PMI.
Optionally, when there is an HARQ-ACK on PUSCH, the HARQ-ACK is punctured after the information of the sPUCCH is written into the interleaving matrix.
Alternatively, UCI on the sPUCCH may use independent modulation coding, or may use the same modulation coding scheme as PUSCH.
In practical applications, the above method may be similarly adopted when there is overlap between the transmission times of PUSCHs with more than two TTI lengths. In order to ensure the time delay performance of the PUCCH with a shorter TTI length, the PUSCH and the PUCCH with the shortest TTI length are processed in the above manner. Such as the pucch with 2 transmission symbols and the pusch with 4 transmission symbols in fig. 3, are processed according to the method in the present embodiment. PUSCH of 1ms gives up transmission.
When there is an overlap between transmission times of a plurality of PUCCHs and one or a plurality of PUSCHs, only the PUSCH with the shortest TTI length in the plurality of PUSCHs may be transmitted, and the remaining channels discard transmission or defer transmission. Optionally, when the TTI length of only one PUCCH is smaller than the TTI length of the PUSCH having the shortest TTI length of the plurality of PUSCHs, UCI on the PUCCH or UCI of the specified type is transmitted on the PUSCH having the shortest TTI length of the plurality of PUSCHs in the same manner as the above-described manner in the present embodiment. Optionally, when the TTI length of the plurality of PUCCHs is smaller than the TTI length of the PUSCH with the shortest TTI length of the plurality of PUSCHs, UCI on the plurality of PUCCHs or UCI of a specified type is transmitted on the PUSCH with the shortest TTI length of the plurality of PUSCHs. The transmission position may be a symbol corresponding to a PUCCH having a shortest TTI length among the plurality of PUCCHs. As shown in fig. 6. There is an overlap in the contracted transmission times of the four channels, wherein if the PUSCH of the shortest TTI length in the PUSCH is 7-symbol PUSCH, the 7-symbol PUSCH is transmitted, and the other channels are all abandoned. The PUCCH shorter than the 7-symbol TTI length has two, i.e., a 4-symbol PUCCH and a 2-symbol PUCCH, and UCI on these two channels is written to the 7-symbol pusch at the location corresponding to the shortest TTI length PUCCH of the 4-symbol PUCCH and the 2-symbol PUCCH, i.e., symbols #12 and 13, i.e., the mesh portion.
Example five
In this embodiment, similar to the embodiment, in one carrier, when the scheduled transmission times of the PUSCH and the PUCCH overlap, the lengths of the corresponding TTIs of the two channels are different.
In this embodiment, the TTI length of PUSCH is greater than the TTI length of PUCCH. The present embodiment is described taking a scenario in which there is an overlap between the transmission time of PUSCH in 1ms TTI and PUCCH in sTTI as an example, and the method in the present embodiment may be used for other TTI lengths.
In this embodiment, only the sPUCCH is transmitted on the symbol corresponding to the sPUCCH, the PUSCH is not transmitted, and the PUSCH is still transmitted on the remaining symbols corresponding to the PUSCH. As shown in fig. 7, fig. 7 shows 14 transmission symbols in one subframe, wherein the sPUCCH occupies symbols # 6 and 7, and the diagonal line part is DMRS. In this method, the frequency domain resources corresponding to the sPUCCH and PUSCH may be overlapping, or non-overlapping or partially overlapping.
That is, on the transmission symbol where the sPUCCH is located, no PUSCH is transmitted, and information of the remaining PUSCHs except the transmission symbol where the sPUCCH is located is still transmitted.
When the UCI is contained on the PUSCH, the UCI is put on the sPUCCH for transmission. Or when the PUSCH contains UCI and the symbol where the UCI is located is overlapped with the symbol corresponding to the sPUCCH, placing the UCI on the sPUCCH for transmission.
Optionally, if the UCI contains HARQ-ACK, the HARQ-ACK is placed on the sPUCCH for transmission, and if the UCI also contains other information, transmission of other information is abandoned.
Optionally, if the UCI contains HARQ-ACK and/or RI/CRI, the HARQ-ACK and/or RI is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of other information is abandoned. For example, when UCI has HARQ-ACK and RI/CRI and CQI/PMI, HARQ-ACK and RI/CRI may be put on the sPUCCH for transmission and CQI/PMI may be discarded for transmission.
Optionally, if the UCI includes at least one of HARQ-ACK, RI/CRI, and CQI/PMI of a preset type, the at least one of HARQ-ACK, RI/CRI, and CQI/PMI of a preset type is placed on the sPUCCH to be transmitted, and transmission of other information is abandoned.
In order to avoid affecting DMRS and/or UCI corresponding to PUSCH, further, when a transmission symbol corresponding to pucch corresponds to DMRS and/or UCI on PUSCH, transmission of the pucch may be deferred.
Alternatively, when the overlapped part of the sPUCCH and the PUSCH contains the symbol where the DMRS is located, one DMRS may be generated according to the frequency domain spans of the sPUCCH and the PUSCH, that is, one DMRS may be generated from the lowest frequency to the highest frequency of the sPUCCH and the PUSCH.
In practical application, when UCI exists on PUSCH, one of the following methods may be adopted for transmission:
the first way is: the position relation of the transmission symbol corresponding to the sPUCCH and the transmission symbol corresponding to the UCI of the PUSCH is completely not considered, and the UCI is transmitted on the sPUCCH only when the UCI exists on the PUSCH.
Optionally, if the UCI contains HARQ-ACK, the HARQ-ACK is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of the other information is abandoned.
Optionally, if the UCI contains HARQ-ACK and/or RI/CRI, the HARQ-ACK and/or RI is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of other information is abandoned.
Optionally, if the UCI includes at least one of HARQ-ACK, RI/CRI, and preset type CQI/PMI, the at least one of HARQ-ACK, RI/CRI, and preset type CQI/PMI is transmitted on the sPUCCH and transmission of other information is abandoned.
The second way is: when UCI exists on the PUSCH and the transmission symbol corresponding to the sPUCCH and the symbol corresponding to the UCI are overlapped, the UCI of the overlapped part is put on the sPUCCH for transmission; when not overlapping UCI, UCI is still placed on PUSCH.
Here, overlapping symbols means that there are portions of the same symbol. For example, if the transmission symbol corresponding to the sPUCCH overlaps with the transmission symbol in which the HARQ-ACK and/or CSI is located, the HARQ-ACK and/or CSI is placed on the sPUCCH. As shown in fig. 8, when the sPUCCH corresponds to the first two transmission symbols, if there is just an RI transmission on PUSCH, then the RI is put on PUSCH for transmission.
Optionally, if the UCI contains HARQ-ACK, the HARQ-ACK is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of the other information is abandoned.
Optionally, if the UCI contains HARQ-ACK and/or RI/CRI, the HARQ-ACK and/or RI is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of other information is abandoned.
Optionally, if the UCI includes at least one of HARQ-ACK, RI/CRI, and preset type CQI/PMI, the at least one of HARQ-ACK, RI/CRI, and preset type CQI/PMI is transmitted on the sPUCCH and transmission of other information is abandoned.
Third mode: when the transmission symbol corresponding to the sPUCCH overlaps with the transmission symbol corresponding to all or part of the UCI, the sPUCCH is still transmitted on the overlapped transmission symbol.
Fourth mode: when the transmission symbol corresponding to the sPUCCH overlaps with the transmission symbol corresponding to all or part of the UCI, the sPUCCH is deferred to a position where the sPUCCH does not collide with the UCI. Such as deferred until the next sTTI without UCI information.
In practical application, when the symbol corresponding to the sPUCCH overlaps with the symbol where the DMRS of the PUSCH is located, the following manner may be adopted for transmission:
The first way is: the sPUCCH is transmitted on a transmission symbol where the DMRS is located, and the PUSCH may be demodulated by using the DMRS on the remaining other symbols, e.g., the sPUCCH is in the first slot and the PUSCH may be demodulated by using the DMRS in the second slot.
The second way is: and generating a DMRS according to the sPUCCH and the PUSCH frequency domain span. As shown in fig. 9. The transmission symbols corresponding to the sPUCCH are symbols # 2 and 3, and overlap with the DMRS symbol of the first slot, and at this time, one DMRS is generated according to the frequency domain spans of the PUSCH and the sPUCCH, that is, one DMRS is generated from the lowest frequency to the highest frequency of the PUSCH and the sPUCCH. The time domain position of the DMRS may be a transmission symbol where the DMRS of the PUSCH is located, or may be a transmission symbol where the sPUCCH is located, and in fig. 9, the time domain position of the DMRS is a symbol where the DMRS is located.
The above method may also be used similarly when there is an overlap in the transmission times of channels of more than two TTI lengths. In order to ensure the time delay performance of the channel with the shorter TTI length, the PUSCH and the PUCCH with the shortest TTI length are processed in the above manner. Such as the pusch with 2 transmission symbols and the pucch with 4 transmission symbols in fig. 3, are processed according to the method of the present embodiment.
Alternatively, when there is an overlap in transmission times for channels exceeding 2 TTI lengths, only the designated channel is transmitted on one transmission symbol, wherein,
the designated channel satisfies one of the following conditions:
in the above two channels, only the appointed transmission time of the appointed PUSCH comprises the transmission symbol;
among the two or more channels, the transmission symbol is included in a scheduled transmission time for a plurality of channels, among which a TTI length corresponding to a given channel is smallest.
Fig. 10 shows a schematic diagram that the scheduled transmission times of PUSCHs with three TTI lengths overlap, being a PUSCH of 1ms, a pucch of 4 symbols and a pucch of 2 symbols, respectively, wherein the scheduled transmission time of a PUSCH of 1ms is symbols #0 to 13, the scheduled transmission time of a pucch of 4 symbols is symbols #5 to 8, and the scheduled transmission time of a pucch of 2 symbols is symbols # 7 and 8. Then only 2 symbols of the sPUCCH are transmitted on symbol #7 and symbol 8, only 4 symbols of the sPUCCH are transmitted on symbols # 5 and 6, and only 1ms of the PUSCH are transmitted on the remaining symbols, i.e. symbols # 0-4 and 9-13.
The processing of UCI is similar to that described above, such as all UCI on PUSCH and sPUCCH or UCI of a specified type is transmitted on sPUCCH. Or only the discarded UCI or the discarded UCI of the specified type is transmitted on the sPUCCH.
Example six
The present embodiment provides a channel transmission method when the scheduled transmission times of the PUSCH and the PUCCH overlap on one carrier, where the TTI lengths corresponding to the two channels are different. Here, the length of the TTI may be 1ms TTI in the existing LTE system, or the TTI may include 2 transmission symbols, 4 transmission symbols, 7 transmission symbols, or the like. Wherein 2, 4, or 7 transmission symbols may be physically contiguous or non-contiguous. For example, when the TTI length is 2 transmission symbols, the DMRS of the PUSCH is transmitted on the first transmission symbol in a subframe, and the uplink data is transmitted on the third transmission symbol in the subframe. The TTI length in practical applications is not limited to the TTI length described in this embodiment. In this embodiment, a TTI having a length of less than 1ms is also referred to as sTTI.
In this embodiment, the TTI length of PUSCH is smaller than the TTI length of PUCCH. For example, the TTI length of PUCCH is 1ms, and the TTI length of pusch is 4 transmission symbols; alternatively, the TTI length of PUCCH is 4 transmission symbols and the TTI length of PUSCH is 2 transmission symbols. The present embodiment is described taking a scenario in which the PUCCH of 1ms TTI and the pusch of sTTI overlap in transmission time as an example. The method in this embodiment may also be used in application scenarios for other TTI lengths.
UCI on PUCCH includes at least one of CSI, SR, and HARQ-ACK. And transmitting the sPUSCH and discarding transmission of the PUCCH. Optionally, UCI on the PUCCH is put on pusch for transmission, or specified UCI on the PUCCH is put on pusch for transmission. Specifically, the following is described.
Optionally, if the UCI contains HARQ-ACK, the HARQ-ACK is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of the other information is abandoned.
Optionally, if the UCI includes an SR, the SR is transmitted on a sPUCCH, and if the UCI also includes other information, transmission of the other information is abandoned.
Optionally, if the UCI contains HARQ-ACK and/or SR, the HARQ-ACK and/or SR is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of other information is abandoned.
Optionally, if the UCI includes at least one of HARQ-ACK, SR, and CSI of a preset type, the at least one of HARQ-ACK, SR, and CSI of a preset type is transmitted on the sPUCCH, and transmission of other information is abandoned. Here, the preset type of CSI may be wideband CSI, and the practical application is not limited to this form of CSI.
For example, the information on PUCCH is: HARQ-ACK and periodic CSI feedback, then HARQ-ACK is transmitted on the pusch and periodic CSI feedback is not transmitted on the pusch.
The other information on PUCCH than the information put on pusch gives up transmission.
Optionally, the information on the PUCCH that was discarded from transmission is deferred until a subsequent subframe.
The method in this embodiment may also be used when there is an overlap in the contracted transmission times of more than 2 channels. When the TTI length is the shortest among the multiple uplink channels is PUSCH, UCI on other PUCCH channels or a specified type of UCI is put on the PUSCH for transmission, similar to the above. Optionally, on other PUSCH channels, if UCI information is also available, these UCI may also be transmitted on the PUSCH. Here, when the pusch also includes UCI, the UCI described above may be transmitted in cascade with UCI on the pusch.
Example seven
Similar to embodiment six, this embodiment presents a channel transmission method when the contracted transmission times of PUSCH and PUCCH overlap on one carrier, where the TTI lengths corresponding to the two channels are different.
In this embodiment, the TTI length of PUSCH is smaller than the TTI length of PUCCH. The present embodiment is described by taking a scenario in which there is an overlap between PUCCH of 1ms TTI and pusch of sTTI as an example, and the method in the present embodiment may be used in application scenarios of other TTI lengths.
In this embodiment, PUCCH and pusch are transmitted simultaneously, i.e. the UE has transmitted 2 channels simultaneously on the transmission symbol where the pusch is located.
Wherein, the frequency domain resources corresponding to the PUCCH and the sPUSCH are not overlapped.
The method can also be used for transmitting all channels simultaneously when the appointed transmission time of more than one PUCCH and more than one PUSCH is overlapped and the corresponding frequency domain resources are not overlapped.
Example eight
The present embodiment presents a transmission method when the contracted transmission times of multiple PUCCHs overlap on one carrier, where the TTI lengths corresponding to the multiple PUCCHs are different.
The present embodiment is described taking a scenario in which the transmission times of PUCCH in 1ms TTI and sPUCCH in sTTI overlap as an example. The method in this embodiment may also be used for other TTI lengths.
In this embodiment, the UE simultaneously transmits PUCCH and sPUCCH, i.e., on the symbol where the sPUCCH is located, the UE simultaneously transmits two channels.
Wherein, the frequency domain resources corresponding to the PUCCH and the sPUCCH are not overlapped.
Example nine
The present embodiment presents a channel transmission method when the contracted transmission times of a plurality of PUCCHs overlap on one carrier. Wherein the plurality of PUCCHs are different in corresponding TTI lengths.
The present embodiment is described by taking a scenario in which there is overlap between the transmission time of PUCCH in 1ms TTI and the transmission time of sPUCCH in sTTI as an example, and the method in the present embodiment may be used for other TTI lengths.
Several transmission modes are given below, and one of the following methods may be used for transmission:
the first way is: and transmitting the sPUCCH, discarding the transmission of the PUCCH, or deferring the PUCCH to the following subframe for transmission.
The second way is: and transmitting the sPUCCH, and placing UCI on the PUCCH or UCI of a specified type on the sPUCCH for transmission.
Optionally, if the UCI contains HARQ-ACK, the HARQ-ACK is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of the other information is abandoned. And if the UCI does not contain the HARQ-ACK, only transmitting the information contained in the sPUCCH on the sPUCCH.
Optionally, if the UCI includes an SR, the SR is transmitted on a sPUCCH, and if the UCI also includes other information, transmission of the other information is abandoned. And if the UCI does not contain the SR, only transmitting the information contained in the sPUCCH on the sPUCCH.
Optionally, if the UCI contains HARQ-ACK and/or SR, the HARQ-ACK and/or RI is transmitted on the sPUCCH, and if the UCI also contains other information, transmission of other information is abandoned. For example, when UCI has HARQ-ACK and SR and CQI/PMI, HARQ-ACK and SR may be put on the sPUCCH for transmission and CQI/PMI relinquishes transmission.
Optionally, if the UCI includes at least one of HARQ-ACK, SR, and preset type CSI, the at least one of HARQ-ACK, SR, and preset type CSI is transmitted on the sPUCCH, and transmission of other information is abandoned. The preset type of CSI may be some format of CSI, such as wideband CSI. For example, when UCI has HARQ-ACK and SR and narrowband CSI, HARQ-ACK and SR may be put on narrowband sPUCCH for transmission, and narrowband CSI may be discarded for transmission.
Alternatively, if the sum of the number of bits of the UCI and the number of bits on the sPUCCH exceeds the number of bits that can be supported by the sPUCCH, then HARQ-ACK bundling techniques may be employed.
Third mode: on the transmission symbol where the sPUCCH is located, no PUCCH is transmitted. On the remaining symbols, the PUCCH is still transmitted.
Fourth mode: and determining to transmit one channel according to the time domain position of the sPUCCH. For example, when the last transmission symbol of the sPUCCH exceeds the mth symbol in the subframe, then the PUCCH is transmitted, and if the last transmission symbol of the sPUCCH does not exceed the mth transmission symbol, then the sPUCCH is transmitted, e.g., m=7. That is, the sPUCCH is transmitted when the sPUCCH is in a first slot and the PUCCH is transmitted when the sPUCCH is in a second slot.
Alternatively, which of the above approaches is used may be determined according to the TTI length corresponding to the pusch.
Alternatively, the eNB may configure the UE whether the PUCCH and PUCCH may be transmitted simultaneously. If configured to be simultaneously transmittable, the method of embodiment eight is used for transmission, otherwise, one of the methods of this embodiment is used for transmission.
Examples ten
The embodiment provides a channel transmission method in a CA scenario when the contracted transmission times of one or more PUCCHs and one or more PUSCHs overlap. Wherein, the TTIs of the one or more PUCCHs have different lengths, and the contracted transmission times of the one or more PUSCHs are different.
In this embodiment, only PUSCH is transmitted. If the TTI length of one PUCCH is the same as the TTI length of one of the PUSCHs, all or part of the information of UCI on that PUCCH is transmitted on the same PUSCH as the TTI length of that PUCCH. Preferably, if there are multiple PUSCHs with the same TTI length as the PUCCH, the PUSCH is selected for transmission according to a preset rule, for example, if one of the multiple PUSCHs is on the primary carrier, the PUSCH is transmitted on the primary carrier, or if all of the multiple PUSCHs are on the secondary carrier, the PUSCH is transmitted on the carrier in which the ScellIndex is the smallest or the largest.
For the remaining PUCCHs, i.e., there is no PUSCH of the same TTI length as it is, the remaining PUCCHs are transmitted on the specified PUSCH, e.g., on the PUSCH on the primary carrier if there is a PUSCH on the primary carrier, or on the PUSCH on the carrier where ScellIndex is the smallest or largest if there is no PUSCH on the primary carrier. Alternatively, the PUSCH with the smallest TTI length is selected for transmission.
An example is given below, where there are a total of 2 carriers, scellIndex 0 and 1, respectively, and there is one PUSCH on each carrier, where the TTI length of PUSCH on carrier with ScellIndex 0 is 4, the TTI length of PUSCH on carrier with ScellIndex 1 is 2, there are three PUCCHs at this time, the TTI lengths are 2, 4, 7, respectively, then information on PUCCH with TTI length 2 is transmitted on carrier with ScellIndex 1, and information on PUCCH with TTI length 2 is transmitted on carrier with ScellIndex 0. The PUCCH with TTI length 7 may be transmitted on PUSCH with the shortest TTI, i.e. on carrier with scellIndex 1. The manner of transmission can be referred to the previous embodiments.
Example eleven
The present embodiment presents a channel transmission method when the contracted transmission times of one or more PUCCHs and one or more PUSCHs overlap in a CA scenario. Wherein, the TTIs of the one or more PUCCHs have different lengths, and the contracted transmission times of the one or more PUSCHs are different.
In this embodiment, when the contracted transmission times of one or more PUCCHs and one or more PUSCHs overlap, all PUSCHs and one PUCCH are transmitted. Wherein the transmitted PUCCH has the shortest TTI length among the plurality of PUCCHs. Optionally, the transmitted PUCCH is transmitted on a primary carrier.
Optionally, among the plurality of PUCCHs, UCI or specified information of UCI on PUCCHs other than the PUCCH having the shortest TTI length is transmitted on the transmitted PUCCH channel, such as HARQ-ACK only is transmitted on the transmitted PUCCH.
Example twelve
The present embodiment presents a channel transmission method when the contracted transmission times of one or more PUCCHs and one or more PUSCHs overlap in a CA scenario. Wherein, the TTIs of the one or more PUCCHs have different lengths, and the contracted transmission times of the one or more PUSCHs are different.
In this embodiment, all PUSCHs are transmitted. If the TTI length of one PUCCH is the same as the TTI length of one of the PUSCHs, all or part of the information of UCI on that PUCCH is transmitted on the same PUSCH as the TTI length of that PUCCH. Preferably, if there are multiple PUSCHs with the same TTI length as the PUCCH, the PUSCH is selected for transmission according to a preset rule, for example, if one of the multiple PUSCHs is on the primary carrier, the PUSCH is transmitted on the primary carrier, or if all of the multiple PUSCHs are on the secondary carrier, the PUSCH is transmitted on the carrier in which the ScellIndex is the smallest or the largest.
For the rest of the PUCCHs, i.e. the PUSCH with the same TTI length as the rest of the PUCCHs, the PUCCH with the smallest TTI in the rest of the PUCCHs is selected for transmission, and all or part of the information on the other PUCCHs is also transmitted on the PUCCH with the smallest TTI. That is, all PUSCHs and one PUCCH are transmitted.
An example is given below, where there are a total of 2 carriers, scellIndex 0 and 1, respectively, and there is one PUSCH on each carrier, where the TTI length of PUSCH on carrier with ScellIndex 0 is 4, the TTI length of PUSCH on carrier with ScellIndex 1 is 2, there are three PUCCHs at this time, the TTI lengths are 2, 4, 7, respectively, then information on PUCCH with TTI length 2 is transmitted on carrier with ScellIndex 1, and information on PUCCH with TTI length 2 is transmitted on carrier with ScellIndex 0. PUCCH with TTI length 7 is transmitted separately. That is, a PUCCH having a TTI length of 7 and PUSCHs having two TTI lengths of 2 and 4, respectively, are transmitted.
Example thirteen
The present embodiment presents a channel transmission method when the contracted transmission times of a plurality of PUCCHs overlap on one carrier. Wherein the plurality of PUCCHs are different in corresponding TTI lengths. And determining the priority according to the UCI carried by the PUCCH and/or the TTI length of the PUCCH, selecting the PUCCH with the highest priority for transmission, and discarding the transmission of the rest of PUCCH or deferring the rest of PUCCH until the transmission time is agreed for transmission.
Determining the priority according to at least one of:
1) The priority of the PUCCH carrying HARQ-ACK is higher than the priority of the PUCCH carrying CSI, i.e. when two PUCCHs, one carrying HARQ-ACK and the other carrying CSI, the PUCCH carrying HARQ-ACK is transmitted and the PUCCH carrying CSI is discarded.
2) The priority of the PUCCH carrying SR is higher than the priority of the PUCCH carrying CSI.
3) If the types of UCI carried are the same, the PUCCH with a short TTI length is higher in priority than the PUCCH with a long TTI length, for example, PUCCH with a TTI length of 1ms and PUCCH with a length of 0.5ms both carry HARQ-ACK, and then PUCCH with a length of 0.5ms is higher in priority.
4) The PUCCH with the corresponding short TTI length carrying HARQ-ACK and/or SR has a higher priority than the PUCCH with the longer TTI length carrying HARQ-ACK and/or SR.
Optionally, UCI on the remaining channels is transmitted on the control channel with the highest priority.
Optionally, when the remaining channels contain the specified information, the specified information is transmitted on the control channel with the highest priority.
Examples fourteen
In order to implement the method of the embodiment of the present invention, this embodiment provides a transmitting device, as shown in fig. 11, including:
A determining unit 111, configured to determine a transmission mode when the contracted transmission times of at least two uplink channels overlap;
a transmitting unit 112, configured to transmit a target signal according to the transmission mode; wherein,
at least two uplink channels in the at least two uplink channels have different Transmission Time Interval (TTI) lengths corresponding to the at least two uplink channels; the uplink channel is a data channel or a control channel, and at least one control channel is arranged in the at least two uplink channels.
The transmission mode is preset and/or indicated by the base station.
The transmitting device may be a UE.
Here, the uplink refers to a direction in which a transmitting device (e.g., UE) transmits information to a base station (e.g., eNB) or the like.
In an embodiment, when the at least two uplink channels are on the same carrier, the sending unit 112 is specifically configured to:
transmitting a first channel;
the first channel is a control channel and is one of the following channels:
a channel with the minimum TTI length in the at least two uplink channels;
a control channel having a minimum TTI length among all control channels in the plurality of uplink channels;
when at least two control channels exist in the at least two uplink channels, the control channel with the earliest initial transmission symbol in the at least two control channels in the at least two uplink channels.
Wherein, the sending unit 112 is further configured to discard sending the second channel; or, deferring the second channel until after the contracted transmission time of the second channel; wherein,
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
In practical application, when UCI is included on the second channel, all or part of the UCI is put on the first channel to be transmitted.
Here, it should be noted that: in practical application, the number of the second channels may be more than one, and the number of the second channels is determined according to the needs.
In practical applications, when UCI is included on the second channel and the UCI includes designation information, the transmitting unit 112 places the designation information on the first channel for transmission.
In addition, when the second channel is a control channel, UCI on the second channel is put on the first channel for transmission; or alternatively, the process may be performed,
when the second channel includes UCI and the UCI includes designation information, the transmitting unit 112 puts the designation information on the first channel to transmit.
Here, when the sum of the number of bits of the UCI transmitted and the number of bits on the first channel exceeds the number of bits that can be supported by the first channel, the processing may be performed by using the HARQ-ACK bundling technique.
In an embodiment, when the at least two uplink channels are on the same carrier, the sending unit 112 is specifically configured to:
transmitting a third channel;
the third channel is a data channel and satisfies one of the following:
the third channel is the data channel with the minimum TTI length in all the data channels in the at least two uplink channels;
the third channel is the only data channel in the at least two uplink channels.
Wherein the sending unit 112 is further configured to:
and discarding transmission of an uplink channel except the third channel among the at least two uplink channels.
In addition, in practical application, the transmitting unit 112 may also be configured to:
and when the fourth channel comprises UCI, writing UCI on the fourth channel into an interleaving matrix of the third channel, wherein the fourth channel is a control channel with a TTI length smaller than that of the third channel in the at least two uplink channels.
Here, when the fourth channel contains UCI and the UCI contains designation information, the transmission unit 112 writes the designation information into an interleaving matrix of the third channel.
Wherein the symbol corresponding to the position of the interleaving matrix written in the third channel is one of the following:
All or part of transmission symbols corresponding to the fourth channel;
the number of the fourth channels is at least two, and all or part of transmission symbols corresponding to the uplink channel with the shortest TTI length in the at least two fourth channels are transmission symbols.
Here, it should be noted that: the partial transmission symbol may be a partial transmission symbol preset in all symbols corresponding to the fourth channel, or may also be a transmission symbol not corresponding to the DMRS of the third channel.
Wherein, since the interleaving matrix does not include transmission symbols corresponding to the DMRS, transmission symbols overlapping with the DMRS in the fourth channel UCI are not written into the position of the interleaving matrix of the third channel.
The transmitting unit 112 may also be configured to:
when the third channel contains UCI, and when the symbol corresponding to the fourth channel overlaps with the symbol where the UCI of the third channel is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the UCI of the third channel;
or ,
when the third channel contains UCI, the UCI of the third channel contains specified information, and the symbol corresponding to the fourth channel overlaps with the symbol where the specified information is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the specified information.
In addition, when the third channel includes UCI and the symbol corresponding to the fourth channel overlaps with the symbol where the UCI of the third channel is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the UCI of the third channel; wherein,
the UCI of the third channel is at least one of:
RI/CRI;
CQI/PMI。
in practical application, when the third channel contains HARQ-ACK, and the symbol corresponding to the fourth channel overlaps the symbol where the HARQ-ACK of the third channel is located, the HARQ-ACK is written after the UCI of the fourth channel is written.
In an embodiment, when the at least two uplink channels are on the same carrier, the sending unit 112 is specifically configured to:
transmitting a fifth channel;
the fifth channel is a data channel, and the fifth channel is a channel with the smallest TTI length in the at least two uplink channels.
Wherein the sending unit 112 may further be configured to:
and discarding transmission of an uplink channel other than the fifth channel among the at least two uplink channels.
When the sixth channel contains UCI, writing UCI on the sixth channel into the interleaving matrix of the fifth channel;
or ,
when a sixth channel contains UCI and the UCI contains appointed information, writing the appointed information into an interleaving matrix of the fifth channel;
wherein the sixth channel is an uplink channel having a TTI length greater than the fifth channel in the at least two uplink channels.
Here, when the sixth channel contains UCI, the transmitting unit 112 writes UCI on the sixth channel into the interleaving matrix of the fifth channel; or alternatively, the process may be performed,
when the sixth channel includes UCI and the UCI includes designation information therein, the transmitting unit 112 writes the designation information into an interleaving matrix of the fifth channel.
In an embodiment, when the at least two uplink channels are on the same carrier, the sending unit 112 is specifically configured to:
when the at least two uplink channels are on the same carrier, only the seventh channel is transmitted on one transmission symbol, wherein,
the seventh channel satisfies one of the following conditions:
in the at least two uplink channels, only the agreed transmission time of the seventh channel includes the transmission symbol;
among the at least two uplink channels, the transmission symbol is included in the agreed transmission time of a plurality of uplink channels, and among the plurality of uplink channels, the TTI length corresponding to the seventh channel is the smallest; the seventh channel is a data channel;
The transmission symbol of the seventh channel is one symbol in a set of symbols contained in the contracted transmission times of the at least two uplink channels.
In practical applications, the transmitting unit 112 may also be configured to:
if the eighth channel contains UCI or the symbols discarded from the nine channels contain UCI, the UCI is transmitted on the tenth channel;
or ,
and if the ninth channel contains UCI and the UCI contains the specified information, transmitting the specified information on the tenth channel.
Wherein the tenth channel is a channel having the shortest TTI length of the at least two uplink channels, and the ninth channel is a channel other than the seventh channel of the at least two uplink channels.
In an embodiment, the sending unit 112 is specifically configured to:
and transmitting all data channels or part of data channels of the at least two uplink channels.
Here, in practical application, when the target signal is transmitted, the method may further include:
an eleventh channel is transmitted.
Wherein the eleventh channel is a control channel and the eleventh channel has a minimum corresponding TTI length in all control channels of the at least two uplink channels.
In practical applications, the transmitting unit 112 may also be configured to:
Transmitting an eleventh channel when the data channel of the at least two uplink channels contains CQI/PMI and/or RI and the control channel of the at least two uplink channels contains other UCI besides CSI;
wherein the eleventh channel is a control channel and the tenth channel has a minimum corresponding TTI length among all control channels in the at least two uplink channels.
The transmitting unit 112 may be further configured to:
and discarding the transmission of the uplink channels except for the eleventh channel and all or part of the data channels of the at least two uplink channels.
In practical applications, the transmitting unit 112 may also be configured to:
UCI on control channels of the at least two uplink channels other than the eleventh channel is transmitted on the eleventh channel;
or, if UCI on a control channel other than the eleventh channel of the at least two uplink channels contains designation information, the designation information is transmitted on the eleventh channel.
The transmitting unit 112 may be further configured to:
and when the data channel in the at least two uplink channels comprises CQI/PMI and the control channel in the at least two uplink channels comprises CSI, discarding the transmission of the CSI on the eleventh channel.
In an embodiment, at least two uplink channels with overlapping contracted transmission times are located on at least two carriers under carrier aggregation, that is, in the CA scenario, the sending unit 112 is specifically configured to:
judging whether at least one data channel exists in the at least two uplink channels or not;
transmitting a twelfth channel when at least one data channel exists; the twelfth channel is at least one of the at least one data channel.
Wherein, the sending unit 112 is further configured to:
discarding the thirteenth channel;
or ,
determining to delay the thirteenth channel to the sixth channel for transmission after the agreed transmission time; wherein,
the thirteenth channel is the other channel than the twelfth channel among the at least two uplink channels.
Here, in actual use, when UCI is included on the thirteenth channel and the TTI length of the twelfth channel is the same as that of the thirteenth channel, the transmitting unit 112 places UCI on the thirteenth channel for transmission;
or ,
when UCI is included on a thirteenth channel, the UCI includes designation information, and the TTI length of the twelfth channel is the same as that of the thirteenth channel, the transmitting unit 112 puts the designation information on the twelfth channel for transmission; wherein,
The thirteenth channel is a control channel of the at least two uplink channels.
The transmitting unit 112 may be further configured to:
when the TTI length of at least two of the twelfth channels is the same as the TTI length of the thirteenth channel, determining the twelfth channel to transmit UCI by one of:
when one of at least two channels of the twelfth channel having the same TTI length as the thirteenth channel is transmitted on the primary carrier, determining that the twelfth channel transmitting UCI is: a channel on a primary carrier in at least two channels of the twelfth channel having a TTI length that is the same as the TTI length of the thirteenth channel;
when none of at least two channels of the twelfth channel having a TTI length equal to the TTI length of the thirteenth channel are transmitted on the primary carrier, determining that the twelfth channel transmitting UCI is: the channel on the subcarrier with the smallest or largest ScellIndex of at least two channels of the twelfth channel having the same TTI length as the thirteenth channel.
In an embodiment, the transmitting unit 112 is specifically configured to:
Judging whether at least one data channel exists in the at least two uplink channels or not;
transmitting a sixteenth channel and a seventeenth channel when at least one data channel exists; the sixteenth channel is at least one of the at least one data channel; the seventeenth channel is a control channel with the smallest TTI length in all control channels in the at least two uplink channels.
Wherein, the sending unit 112 is further configured to:
discarding transmission of the eighteenth channel;
or ,
delaying the eighteenth channel until the appointed transmission time of the eighteenth channel and then transmitting; wherein,
the eighteenth channel is the other uplink channel than the sixteenth channel and seventeenth channel among the at least two uplink channels.
Here, in practical application, the sending unit 112 is further configured to:
transmitting UCI on other control channels than the seventeenth channel among all control channels in the at least two uplink channels on the seventeenth channel;
or ,
UCI on other control channels than the seventeenth channel among all control channels in the at least two uplink channels includes designation information, and the designation information is transmitted on the seventeenth channel.
In an embodiment, the transmitting unit 112 is specifically configured to:
judging whether at least one data channel exists in the at least two uplink channels or not;
transmitting a nineteenth channel and a twentieth channel when at least one data channel is present; the nineteenth channel is at least one of the at least one data channel; the twentieth channel is the control channel with the shortest TTI length in other control channels except the twenty-first channel in all control channels in the at least two uplink channels; the twenty-first channel is a control channel of the same TTI length as the at least one data channel.
Wherein, the sending unit 112 is further configured to:
and discarding transmission of channels other than the nineteenth channel and the twentieth channel.
In practical application, UCI or assignment information on the twenty-first channel transmitted on the nineteenth channel is CSI.
Wherein, when one of the data channels with the same TTI length as the twenty-first channel is transmitted on the main carrier, the nineteenth channel is the data channel on the main carrier;
The nineteenth channel is the data channel on the subcarrier with the smallest or largest ScellIndex when none of the data channels of the same TTI length as the twenty-first channel are transmitted on the primary carrier.
In practical application, the information sent on the twentieth channel includes at least one of:
UCI on other control channels except the nineteenth channel and the twentieth channel in all control channels in the at least two uplink channels;
the specified information in UCI on other control channels except the nineteenth channel and the twentieth channel in all control channels in the at least two uplink channels;
and other information except the information transmitted on the nineteenth channel in UCI on the twenty-first channel.
In an embodiment, the transmitting unit 112 is specifically configured to:
judging whether the at least two uplink channels are control channels or not;
when the control channels are all control channels, a twenty-second channel is sent on a designated carrier; the twenty-second channel is a control channel with the shortest TTI length in the at least two uplink channels.
Wherein, the sending unit 112 is further configured to:
and discarding transmission of other channels than the twenty-second channel among the at least two uplink channels.
In practical application, the sending unit 112 is further configured to:
UCI on other channels than the twenty-second channel among the at least two uplink channels is transmitted on the twenty-second channel;
or ,
the assignment information in UCI on the other channels than the twenty-second channel among the at least two uplink channels is transmitted on the fifteenth channel.
Wherein the designated carrier is one of the following carriers:
a primary carrier;
the maximum or minimum subcarrier of ScellIndex.
In an embodiment, when the at least two uplink channels are on the same carrier, the sending unit 112 is specifically configured to:
when the at least two uplink channels are both control channels, determining priority according to UCI carried by the control channels and/or TTI length of the control channels, selecting a control channel with highest priority for transmission, and discarding to transmit other control channels or deferring the other control channels to the appointed transmission time of the other control channels for transmission;
And the rest control channels are uplink channels except the control channel with the highest priority in the at least two uplink channels.
Here, the determining the priority according to UCI carried by the control channel and/or the TTI length of the control channel includes at least one of:
the priority of the control channel carrying HARQ-ACK is higher than that of the control channel carrying CSI;
the priority of the control channel carrying the SR is higher than that of the control channel carrying the CSI;
under the condition that the carried UCI types are the same, the control channel with a short corresponding TTI length is higher in priority than the control channel with a long corresponding TTI length;
the control channel with a short corresponding TTI length carrying HARQ-ACK and/or scheduling request SR has a higher priority than the control channel with a longer TTI length carrying HARQ-ACK and/or SR.
Wherein, the sending unit 112 may be further configured to:
and placing UCI on the rest channels on the control channel with the highest priority for transmission.
In addition, the transmitting unit 112 may be further configured to:
and when the rest channels contain the specified information, the specified information is placed on the control channel with the highest priority for transmission.
It should be noted that: in practical application, when the channel where the UCI is located is a data channel, the UCI may include at least one of the following information: HARQ-ACK, RI/CRI, CQI/PMI.
When the channel where the UCI is located is a control channel, the UCI includes at least one of the following information: HARQ-ACK, SR, CSI.
When the channel where the UCI is located is a data channel, the specific information is one of the following information:
HARQ-ACK;
at least one of HARQ-ACK and RI/CRI;
at least one of HARQ-ACK, RI/CRI, and CQI/PMI of a preset type.
When the channel where the UCI is located is a control channel, the specified information is one of the following information:
HARQ-ACK;
SR;
at least one of HARQ-ACK and SR;
at least one of CSI, HARQ-ACK and SR of a preset type.
It should be noted that: in practical applications, the receiving device (such as a base station) also knows the transmission mode of the transmitting device, and receives the corresponding target signal in the same manner as the transmission mode of the transmitting device.
In practical applications, the determining unit 111 may be implemented by a central processing unit (CPU, central Processing Unit), a microprocessor (MCU, micro Control Unit), a digital signal processor (DSP, digital Signal Processor) or a programmable logic array (FPGA, field-Programmable Gate Array) in the transmitting device; the transmitting unit 112 may be implemented by CPU, MCU, DSP in the transmitting device or an FPGA in combination with a transceiver.
According to the scheme provided by the embodiment of the invention, when the appointed transmission time of at least two uplink channels is overlapped, the determining unit 111 determines a transmission mode, and the transmitting unit 112 transmits a target signal according to the transmission mode; the sending mode is preset and/or indicated by the base station; at least two uplink channels in the at least two uplink channels have different Transmission Time Interval (TTI) lengths corresponding to the at least two uplink channels; the uplink channels are data channels or control channels, and at least one control channel is arranged in the at least two uplink channels, so that when channels with different TTI lengths are overlapped in transmission time, the transmission of each channel can be effectively realized.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.

Claims (65)

1. An information transmission method, the method comprising:
when the appointed transmission time of at least two uplink channels is overlapped, determining a transmission mode, and transmitting a target signal according to the transmission mode; the sending mode is preset and/or indicated by the base station;
at least two uplink channels in the at least two uplink channels have different Transmission Time Interval (TTI) lengths corresponding to the at least two uplink channels;
the uplink channel is a data channel or a control channel, and at least one control channel is arranged in the at least two uplink channels;
the transmission target signal includes: transmitting a first channel when the at least two uplink channels are on the same carrier;
The first channel is a control channel.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the first channel is one of the following channels:
a channel with the minimum TTI length in the at least two uplink channels;
a control channel having a minimum TTI length among all control channels in the plurality of uplink channels;
when at least two control channels exist in the at least two uplink channels, the control channel with the earliest initial transmission symbol in the at least two control channels in the at least two uplink channels.
3. The method according to claim 2, wherein the method further comprises:
giving up sending the second channel;
or ,
delaying a second channel until a contracted transmission time of the second channel and then sending the delayed second channel; wherein,
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
4. The method according to claim 2, wherein the method further comprises:
when the second channel contains uplink control information UCI, the UCI is placed on the first channel for transmission; wherein,
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
5. The method according to claim 2, wherein the method further comprises:
when the UCI is contained on the second channel, the UCI is contained in the appointed information, and the appointed information is placed on the first channel for transmission; wherein,
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
6. The method according to claim 2, wherein the method further comprises:
when the second channel is a control channel, UCI on the second channel is put on the first channel for transmission; or alternatively, the process may be performed,
when a second channel contains UCI and the UCI contains designation information, transmitting the designation information on the first channel;
the second channel is the other uplink channel except the first channel in the at least two uplink channels.
7. The method of claim 1, wherein the transmitting the target signal comprises:
transmitting a third channel when the at least two uplink channels are on the same carrier;
the third channel is a data channel and satisfies one of the following:
the third channel is the data channel with the minimum TTI length in all the data channels in the at least two uplink channels;
The third channel is the only data channel in the at least two uplink channels.
8. The method of claim 7, wherein the method further comprises:
and discarding transmission of an uplink channel except the third channel among the at least two uplink channels.
9. The method of claim 6, wherein the transmitting method further comprises:
and when the fourth channel comprises UCI, writing the UCI on the fourth channel into an interleaving matrix of a third channel, wherein the fourth channel is a control channel with a TTI length smaller than that of the third channel in the at least two uplink channels.
10. The method of claim 6, wherein the method further comprises:
and when the fourth channel comprises UCI and the UCI comprises appointed information, writing the appointed information into an interleaving matrix of a third channel, wherein the fourth channel is a control channel with a TTI length smaller than that of the third channel in the at least two uplink channels.
11. The method according to claim 9 or 10, wherein,
the symbol corresponding to the position of the interleaving matrix written in the third channel is one of the following:
All or part of transmission symbols corresponding to the fourth channel;
the number of the fourth channels is at least two, and all or part of transmission symbols corresponding to the uplink channel with the shortest TTI length in the at least two fourth channels are transmission symbols.
12. The method according to claim 9 or 10, characterized in that the method further comprises:
when the third channel contains UCI, and when the symbol corresponding to the fourth channel overlaps with the symbol where the UCI of the third channel is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the UCI of the third channel;
or ,
when the third channel contains UCI, the UCI of the third channel contains specified information, and the symbol corresponding to the fourth channel overlaps with the symbol where the specified information is located, the position of the UCI of the fourth channel written into the interleaving matrix is staggered from the position corresponding to the specified information.
13. The method according to claim 9 or 10, characterized in that the method further comprises:
when the third channel contains UCI and the symbol corresponding to the fourth channel is overlapped with the symbol of the UCI of the third channel, the position of the UCI of the fourth channel written into the interleaving matrix is staggered with the position corresponding to the UCI of the third channel; wherein,
The UCI of the third channel is at least one of:
RI/CRI;
CQI/PMI。
14. the method according to claim 9 or 10, characterized in that the method further comprises:
when the third channel contains HARQ-ACK and the symbol corresponding to the fourth channel overlaps with the symbol where the HARQ-ACK is located, after the UCI of the fourth channel is written, the HARQ-ACK is written.
15. The method of claim 1, wherein the transmitting the target signal comprises:
transmitting a fifth channel when the at least two uplink channels are on the same carrier;
the fifth channel is a data channel, and the fifth channel is a channel with the smallest TTI length in the at least two uplink channels.
16. The method of claim 15, wherein the method further comprises:
and discarding transmission of an uplink channel other than the fifth channel among the at least two uplink channels.
17. The method of claim 15, wherein the method further comprises:
when the sixth channel contains UCI, writing UCI on the sixth channel into an interleaving matrix of the fifth channel;
or ,
when a sixth channel contains UCI and the UCI contains appointed information, writing the appointed information into an interleaving matrix of the fifth channel;
wherein the sixth channel is an uplink channel having a TTI length greater than the fifth channel in the at least two uplink channels.
18. The method of claim 15, wherein the method further comprises:
when the sixth channel contains UCI, writing UCI on the sixth channel into an interleaving matrix of the fifth channel;
or ,
when a sixth channel contains UCI and the UCI contains appointed information, writing the appointed information into an interleaving matrix of the fifth channel;
wherein the sixth channel is a control channel having a TTI length greater than the fifth channel in the at least two uplink channels.
19. The method of claim 1, wherein the transmitting the target signal comprises:
when the at least two uplink channels are on the same carrier, only the seventh channel is transmitted on one transmission symbol, wherein,
the seventh channel satisfies one of the following conditions:
in the at least two uplink channels, only the agreed transmission time of the seventh channel includes the transmission symbol;
Among the at least two uplink channels, the transmission symbol is included in the agreed transmission time of a plurality of uplink channels, and among the plurality of uplink channels, the TTI length corresponding to the seventh channel is the smallest; the seventh channel is a data channel;
the transmission symbol of the seventh channel is one symbol in a set of symbols contained in the contracted transmission times of the at least two uplink channels.
20. The method of claim 19, wherein the method further comprises:
if the eighth channel contains UCI or the symbols discarded in the ninth channel contain UCI, the UCI is transmitted on the tenth channel;
or ,
transmitting the appointed information on a tenth channel if the ninth channel comprises UCI and the UCI comprises the appointed information;
wherein the tenth channel is a channel having the shortest TTI length of the at least two uplink channels, and the ninth channel is a channel other than the seventh channel of the at least two uplink channels.
21. The method of claim 1, wherein the transmitting the target signal comprises:
and transmitting all data channels or part of data channels of the at least two uplink channels.
22. The method of claim 21, wherein the method further comprises:
transmitting an eleventh channel;
wherein the eleventh channel is a control channel and the eleventh channel has a minimum corresponding TTI length in all control channels of the at least two uplink channels.
23. The method of claim 21, wherein the method further comprises:
transmitting an eleventh channel when the data channel of the at least two uplink channels contains CQI/PMI and/or RI and the control channel of the at least two uplink channels contains other UCI besides CSI;
wherein the eleventh channel is a control channel and the tenth channel has a minimum corresponding TTI length among all control channels in the at least two uplink channels.
24. The method according to claim 22 or 23, characterized in that the method further comprises:
and discarding the transmission of the uplink channels except for the eleventh channel and all or part of the data channels of the at least two uplink channels.
25. The method according to claim 22 or 23, characterized in that the method further comprises:
UCI on control channels of the at least two uplink channels other than the eleventh channel is transmitted on the eleventh channel;
or, if UCI on a control channel other than the eleventh channel of the at least two uplink channels contains designation information, the designation information is transmitted on the eleventh channel.
26. The method according to claim 22 or 23, characterized in that the method further comprises:
and when the data channel in the at least two uplink channels comprises CQI/PMI and the control channel in the at least two uplink channels comprises CSI, discarding the transmission of the CSI on the eleventh channel.
27. The method of claim 1, wherein the transmitting the target signal comprises:
transmitting a twelfth channel when at least one data channel exists in the at least two uplink channels; the twelfth channel is at least one of the at least one data channel.
28. The method of claim 27, wherein the method further comprises:
discarding the thirteenth channel;
or ,
determining to delay the thirteenth channel to the agreed transmission time of the sixth channel and then transmitting; wherein,
The thirteenth channel is the other channel than the twelfth channel among the at least two uplink channels.
29. The method of claim 27, wherein the method further comprises:
when UCI is included on a thirteenth channel and the twelfth channel is the same TTI length as the thirteenth channel, transmitting UCI on the twelfth channel;
or ,
when UCI is included on a thirteenth channel, the UCI including designation information, and the twelfth channel is the same as the TTI length of the thirteenth channel, the designation information is placed on the twelfth channel for transmission; wherein,
the thirteenth channel is a control channel of the at least two uplink channels.
30. The method of claim 29, further comprising:
when the TTI length of at least two of the twelfth channels is the same as the TTI length of the thirteenth channel, determining the twelfth channel to transmit UCI by one of:
when one of at least two channels of the twelfth channel having the same TTI length as the thirteenth channel is transmitted on the primary carrier, determining that the twelfth channel transmitting UCI is: a channel on a primary carrier in at least two channels of the twelfth channel having a TTI length that is the same as the TTI length of the thirteenth channel;
When none of at least two channels of the twelfth channel having a TTI length equal to the TTI length of the thirteenth channel are transmitted on the primary carrier, determining that the twelfth channel transmitting UCI is: the channel on the subcarrier with the smallest or largest ScellIndex of at least two channels of the twelfth channel having the same TTI length as the thirteenth channel.
31. The method of claim 29, further comprising:
the UCI on the fourteenth channel or the designation information in the UCI is put on the fifteenth channel to be transmitted; wherein,
the fourteenth channel is a control channel other than the thirteenth channel among the at least one control channel; the fifteenth channel is a data channel designated in at least two of the twelfth channels.
32. The method of claim 31, wherein the number of fourteenth channels is at least one, the method further comprising:
when the TTI length of one of at least one fourteenth channel is smaller than that of the fifteenth channel, it is determined that the one of the fourteenth channel is transmitted and the fifteenth channel is not transmitted on a transmission symbol corresponding to the one channel on the fifteenth channel, and the fifteenth channel is transmitted on other symbols than the transmission symbol corresponding to the one channel.
33. The method of claim 31, wherein the fifteenth channel is one of:
a data channel on a primary carrier;
when there is no data channel on the primary carrier, the data channel on the subcarrier with the smallest or largest ScellIndex;
and a data channel with the minimum TTI length in the data channels in the at least one uplink channel.
34. The method of claim 1, wherein the transmitting the target signal comprises:
transmitting a sixteenth channel and a seventeenth channel when at least one data channel exists in the at least two uplink channels; the sixteenth channel is at least one of the at least one data channel; the seventeenth channel is a control channel with the smallest TTI length in all control channels in the at least two uplink channels.
35. The method of claim 33, wherein the method further comprises:
discarding transmission of the eighteenth channel;
or ,
delaying the eighteenth channel until the appointed transmission time of the eighteenth channel and then transmitting; wherein,
the eighteenth channel is the other uplink channel than the sixteenth channel and the seventeenth channel among the at least two uplink channels.
36. The method of claim 34, wherein the method further comprises:
transmitting UCI on other control channels than the seventeenth channel among all control channels in the at least two uplink channels on the seventeenth channel;
or ,
UCI on other control channels than the seventeenth channel among all control channels in the at least two uplink channels includes designation information, and the designation information is transmitted on the seventeenth channel.
37. The method of claim 1, wherein the transmitting the target signal comprises:
transmitting a nineteenth channel and a twentieth channel when at least one data channel exists in the at least two uplink channels; the nineteenth channel is at least one of the at least one data channel; the twentieth channel is the control channel with the shortest TTI length in other control channels except the twenty-first channel in all control channels in the at least two uplink channels; the twenty-first channel is a control channel of the same TTI length as the at least one data channel.
38. The method of claim 37, wherein the method further comprises:
And discarding transmission of channels other than the nineteenth channel and the twentieth channel.
39. The method of claim 37, wherein the method further comprises:
UCI on the twenty-first channel is transmitted on the nineteenth channel;
or ,
and if the UCI on the twenty-first channel contains the specified information, transmitting the specified information on the nineteenth channel.
40. The method of claim 39, wherein UCI or designation information on a twenty-first channel transmitted on the nineteenth channel is channel state information, CSI.
41. The method of claim 39, wherein the step of,
when one of the data channels with the same TTI length as the twenty-first channel is transmitted on the main carrier, the nineteenth channel is the data channel on the main carrier;
the nineteenth channel is the data channel on the subcarrier with the smallest or largest ScellIndex when none of the data channels of the same TTI length as the twenty-first channel are transmitted on the primary carrier.
42. The method of claim 39, wherein the information transmitted on the twentieth channel comprises at least one of:
UCI on other control channels except the nineteenth channel and the twentieth channel in all control channels in the at least two uplink channels;
the specified information in UCI on other control channels except the nineteenth channel and the twentieth channel in all control channels in the at least two uplink channels;
and other information except the information transmitted on the nineteenth channel in UCI on the twenty-first channel.
43. The method of claim 1, wherein the transmitting the target signal comprises:
when the at least two uplink channels are both control channels, a twenty-second channel is sent on a designated carrier; the twenty-second channel is a control channel with the shortest TTI length in the at least two uplink channels.
44. The method of claim 43, further comprising:
and discarding transmission of other channels than the twenty-second channel among the at least two uplink channels.
45. The method of claim 43, further comprising:
UCI on other channels than the twenty-second channel among the at least two uplink channels is transmitted on the twenty-second channel;
or ,
the designation information in UCI on the other channels than the twenty-second channel among the at least two uplink channels is transmitted on a fifteenth channel.
46. The method of claim 43, wherein the designated carrier is one of:
a primary carrier;
the maximum or minimum subcarrier of ScellIndex.
47. The method of claim 1, wherein the transmitting the target signal comprises:
when the at least two uplink channels are both control channels, determining priority according to UCI carried by the control channels and/or TTI length of the control channels, selecting a control channel with highest priority for transmission, and discarding to transmit other control channels or deferring the other control channels to the appointed transmission time of the other control channels for transmission;
and the rest control channels are uplink channels except the control channel with the highest priority in the at least two uplink channels.
48. The method of claim 47, wherein the determining the priority based on UCI carried by the control channel and/or the TTI length of the control channel comprises at least one of:
The priority of the control channel carrying HARQ-ACK is higher than that of the control channel carrying CSI;
the priority of the control channel carrying the SR is higher than that of the control channel carrying the CSI;
under the condition that the carried UCI types are the same, the control channel with a short corresponding TTI length is higher in priority than the control channel with a long corresponding TTI length;
the control channel with a short corresponding TTI length carrying HARQ-ACK and/or scheduling request SR has a higher priority than the control channel with a longer TTI length carrying HARQ-ACK and/or SR.
49. The method of claim 47, further comprising:
and placing UCI on the rest channels on the control channel with the highest priority for transmission.
50. The method of claim 47, further comprising:
and when the rest channels contain the specified information, placing the specified information on the control channel with the highest priority for transmission.
51. The method of any one of claims 5-6, 10, 17, 18, 29, 31, 36, 39, 42, or 45,
when the channel where the UCI is located is a data channel, the UCI includes at least one of the following information: HARQ-ACK, RI/CRI, CQI/PMI;
When the channel where the UCI is located is a control channel, the UCI includes at least one of the following information: HARQ-ACK, SR, CSI.
52. The method of claim 51, wherein the specified information is one of:
HARQ-ACK;
at least one of HARQ-ACK and RI/CRI;
at least one of HARQ-ACK, RI/CRI, and CQI/PMI of a preset type.
53. The method of claim 51, wherein the specified information is one of:
HARQ-ACK;
SR;
at least one of HARQ-ACK and SR;
at least one of CSI, HARQ-ACK and SR of a preset type.
54. The method of any one of claims 27, 34, 37, or 43, wherein the at least two uplink channels are on at least two carriers under carrier aggregation.
55. A transmitting apparatus, the apparatus comprising:
a determining unit, configured to determine a transmission mode when the contracted transmission times of at least two uplink channels overlap;
a transmitting unit, configured to transmit a target signal according to the transmission mode; the sending mode is preset and/or indicated by the base station;
at least two uplink channels in the at least two uplink channels have different TTI lengths corresponding to the at least two uplink channels;
The uplink channel is a data channel or a control channel, and at least one control channel is arranged in the at least two uplink channels;
the at least two uplink channels are on the same carrier, and the sending unit is specifically configured to:
transmitting a first channel;
the first channel is a control channel.
56. The apparatus of claim 55, wherein the device comprises,
the first channel is one of the following channels:
a channel with the minimum TTI length in the at least two uplink channels;
a control channel having a minimum TTI length among all control channels in the plurality of uplink channels;
when at least two control channels exist in the at least two uplink channels, the control channel with the earliest initial transmission symbol in the at least two control channels in the at least two uplink channels.
57. The apparatus of claim 55, wherein the at least two uplink channels are on a same carrier, and wherein the transmitting unit is specifically configured to:
transmitting a third channel;
the third channel is a data channel and satisfies one of the following:
the third channel is the data channel with the minimum TTI length in all the data channels in the at least two uplink channels;
The third channel is the only data channel in the at least two uplink channels.
58. The device according to claim 55, wherein the transmitting unit is specifically configured to:
transmitting a fifth channel when the at least two uplink channels are on the same carrier;
the fifth channel is a data channel, and the fifth channel is a channel with the smallest TTI length in the at least two uplink channels.
59. The device according to claim 55, wherein the transmitting unit is specifically configured to:
when the at least two uplink channels are on the same carrier, only the eighth channel is transmitted on one transmission symbol, wherein,
the eighth channel satisfies one of the following conditions:
in the at least two uplink channels, only the agreed transmission time of the eighth channel includes the transmission symbol;
among the at least two uplink channels, the transmission symbols are included in the agreed transmission time of a plurality of uplink channels, and among the plurality of uplink channels, the TTI length corresponding to the eighth channel is the smallest; the seventh channel is a data channel;
the transmission symbol of the eighth channel is one symbol in a symbol set included in the contracted transmission time of the at least two uplink channels.
60. The device according to claim 55, wherein the transmitting unit is specifically configured to:
and transmitting all data channels or part of data channels of the at least two uplink channels.
61. The device according to claim 55, wherein the transmitting unit is specifically configured to:
transmitting a twelfth channel when at least one data channel exists in the at least two uplink channels; the twelfth channel is at least one of the at least one data channel.
62. The device according to claim 55, wherein the transmitting unit is specifically configured to:
transmitting a sixteenth channel and a seventeenth channel when at least one data channel exists in the at least two uplink channels; the sixteenth channel is at least one of the at least one data channel; the seventeenth channel is a control channel with the smallest TTI length in all control channels in the at least two uplink channels.
63. The device according to claim 55, wherein the transmitting unit is specifically configured to:
transmitting a nineteenth channel and a twentieth channel when at least one data channel exists in the at least two uplink channels; the nineteenth channel is at least one of the at least one data channel; the twentieth channel is the control channel with the shortest TTI length in other control channels except the twenty-first channel in all control channels in the at least two uplink channels; the twenty-first channel is a control channel of the same TTI length as the at least one data channel.
64. The device according to claim 55, wherein the transmitting unit is specifically configured to:
when the at least two uplink channels are both control channels, a twenty-second channel is sent on a designated carrier; the twenty-second channel is a control channel with the shortest TTI length in the at least two uplink channels.
65. The device according to claim 55, wherein the transmitting unit is specifically configured to:
when the at least two uplink channels are both control channels, determining priority according to UCI carried by the control channels and/or TTI length of the control channels, selecting a control channel with highest priority for transmission, and discarding to transmit other control channels or deferring the other control channels to the appointed transmission time of the other control channels for transmission;
and the rest control channels are uplink channels except the control channel with the highest priority in the at least two uplink channels.
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