CN115333699B

CN115333699B - Channel processing method, device and storage medium

Info

Publication number: CN115333699B
Application number: CN202110512168.0A
Authority: CN
Inventors: 司倩倩; 高雪娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Filing date: 2021-05-11
Publication date: 2024-07-05
Anticipated expiration: 2041-05-11

Abstract

The application provides a channel processing method, a device and a storage medium, wherein the method comprises the following steps: determining that time domain conflict exists between time domain resources of a first PUCCH on a first carrier and time domain resources of a second PUCCH on a second carrier, wherein the first carrier is a main carrier, and the second carrier is an auxiliary carrier; and processing the first PUCCH and the second PUCCH according to a channel processing strategy, wherein the channel processing strategy comprises channel discarding and/or channel multiplexing. Thus, processing of time domain resource collisions of PUCCHs on different carriers is achieved.

Description

Channel processing method, device and storage medium

Technical Field

The present application relates to the field of communications, and in particular, to a channel processing method, apparatus, and storage medium.

Background

In a traffic scenario supported by a communication system, the latency requirements of an ultra-high reliability low latency communication (Ultra Reliable Low Latency Communication, URLLC) traffic scenario are very high. However, considering that the uplink transmission and the downlink transmission of the unpaired spectrum (unpaired spectrum) share the same spectrum resource, the uplink transmission and the downlink transmission need to be time division multiplexed, so in one carrier group, the time domain configuration of the physical uplink control channel (Physical Uplink Control Channel, PUCCH) is limited by the uplink and downlink ratio of the carrier, and the uplink resource available on the carrier needs to be waited, thereby causing the PUCCH to have transmission delay and affecting the performance of URLLC.

For the transmission delay of PUCCH, one solution proposed at present is: and carrying out carrier switching on the PUCCH, namely switching the PUCCH from the originally configured carrier to another carrier for transmission, so that the transmission of the PUCCH is completed through the other carrier when the originally configured time domain resources for transmitting the PUCCH are insufficient or time domain resources conflict, and the transmission of the PUCCH does not need to be delayed.

The inventors found during the study of the above solution: there is still a case of time domain resource collision after carrier switching of PUCCH.

Disclosure of Invention

The application provides a channel processing method, a device and a storage medium, which are used for avoiding the situation that time domain resource conflict still exists after carrier switching is carried out on a PUCCH and ensuring the realization of carrier switching transmission of the PUCCH.

In a first aspect, the present application provides a channel processing method, including:

determining that time domain conflict exists between time domain resources of a first PUCCH on a first carrier and time domain resources of a second PUCCH on a second carrier, wherein the first carrier is a main carrier, and the second carrier is an auxiliary carrier;

processing the first PUCCH and the second PUCCH according to a channel processing strategy, wherein the channel processing strategy comprises the following steps: channel dropping and/or channel multiplexing.

Optionally, determining that there is a time domain collision between the time domain resource of the first PUCCH on the first carrier and the time domain resource of the second PUCCH on the second carrier includes at least one of:

determining that time domain resources of a first PUCCH on a first carrier overlap with time domain resources of a second PUCCH on a second carrier;

Determining that a time domain resource of a first PUCCH on a first carrier and a time domain resource of a second PUCCH on a second carrier belong to the same time slot;

It is determined that a time interval between time domain resources of a first PUCCH on a first carrier and time domain resources of a second PUCCH on a second carrier is less than a first threshold.

Optionally, processing the first PUCCH and the second PUCCH according to a channel processing policy includes:

the first PUCCH is discarded and the second PUCCH is reserved.

Optionally, before determining that there is a time domain collision between the time domain resource of the first PUCCH on the first carrier and the time domain resource of the second PUCCH on the second carrier, the channel processing method further includes:

And determining that the time interval between the time domain resource of the PDCCH corresponding to the second PUCCH and the time domain resource of the first PUCCH is greater than or equal to a second threshold value.

and determining UCI multiplexing transmission of the first PUCCH and UCI multiplexing transmission of the second PUCCH.

Optionally, determining multiplexing transmission of uplink control information UCI on the first PUCCH with UCI on the second PUCCH includes:

And determining the PUCCH resource on the second carrier as the resource of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

Optionally, determining the PUCCH resource on the second carrier as the resource for UCI multiplexing transmission on the first PUCCH and UCI on the second PUCCH includes:

if SPS HARQ-ACK is carried on the first PUCCH and dynamic HARQ-ACK is carried on the second PUCCH, determining that the PUCCH resource on the second carrier is the multiplexing resource of UCI on the first PUCCH and UCI on the second PUCCH.

Optionally, processing the first PUCCH and the second PUCCH according to a channel processing policy further includes:

and carrying out cascade and joint coding on the codebook of the SPS HARQ-ACK of the first PUCCH and the codebook of the dynamic HARQ-ACK on the second carrier.

And determining that the time interval between the time domain resource of the PDCCH corresponding to the second PUCCH and the time domain resource of the first PUCCH is greater than or equal to a third threshold value.

And in the first PUCCH and the second PUCCH, if the PUCCH resources carrying the dynamic HARQ-ACK exist, determining the PUCCH resources carrying the dynamic HARQ-ACK as the resources of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

and if the PUCCH resources carrying the dynamic HARQ-ACK do not exist in the first PUCCH and the second PUCCH, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

If the PUCCH resource carrying the dynamic HARQ-ACK exists on the second carrier, determining the PUCCH resource carrying the dynamic HARQ-ACK on the second carrier as the resource of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

If the PUCCH resource carrying the dynamic HARQ-ACK does not exist on the second carrier, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

Reserving a PUCCH with highest channel priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCHs;

or reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH;

Or reserving the PUCCH with the maximum information bit number of UCI in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

Optionally, the UCI types sequentially include, in order of UCI priority from high to low: dynamic HARQ-ACK, SPS HARQ-ACK, SR, CSI.

In a second aspect, the present application provides a channel processing apparatus comprising a memory, a transceiver, and a processor: a memory for storing a computer program;

a transceiver for transceiving data under the control of the processor;

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

And processing the first PUCCH and the second PUCCH according to a channel processing strategy, wherein the channel processing strategy comprises channel discarding and/or channel multiplexing.

Optionally, the processor further performs at least one of:

Optionally, the processor further performs the following operations:

the first PUCCH is discarded and the second PUCCH is reserved.

Optionally, the processor further performs the following operations:

In a third aspect, the present application provides a channel processing apparatus comprising:

A first determining unit, configured to determine that there is a time domain conflict between a time domain resource of a first physical uplink control channel PUCCH on a first carrier and a time domain resource of a second PUCCH on a second carrier, where the first carrier is a primary carrier, and the second carrier is a secondary carrier;

the processing unit is configured to process the first PUCCH and the second PUCCH according to a channel processing policy, where the channel processing policy includes: channel dropping and/or channel multiplexing.

Optionally, the first determining unit is specifically configured to perform at least one of the following operations:

Optionally, the processing unit is specifically configured to:

the first PUCCH is discarded and the second PUCCH is reserved.

Optionally, the channel processing device further includes:

And a second determining unit, configured to determine that a time interval between a time domain resource of the PDCCH corresponding to the second PUCCH and a time domain resource of the first PUCCH is greater than or equal to a second threshold.

Optionally, the processing unit is specifically configured to:

Optionally, the processing unit is further configured to:

Optionally, the channel processing device further includes:

And a third determining unit, configured to determine that a time interval between a time domain resource of the PDCCH corresponding to the second PUCCH and a time domain resource of the first PUCCH is greater than or equal to a third threshold.

Optionally, the processing unit is specifically configured to:

In a fourth aspect, the present application provides a processor-readable storage medium storing a computer program for causing a processor to execute the channel processing method of the first aspect.

In a fifth aspect, the application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the channel processing method of the first aspect as described above.

In a sixth aspect, the present application provides a communication system, including a network device and a terminal, where the network device and the terminal may perform the channel processing method described in the first aspect.

The application provides a channel processing method, a device and a storage medium, wherein when time domain conflict exists between time domain resources of a first PUCCH on a main carrier and time domain resources of a second PUCCH on an auxiliary carrier, the first PUCCH and the second PUCCH are processed according to a channel processing strategy, wherein the channel processing strategy comprises channel discarding and/or channel multiplexing, so that the processing of the time domain conflict between the PUCCH on the main carrier and the PUCCH on the auxiliary carrier is realized, and the processing effect of the time domain conflict of the channel is improved.

It should be understood that the description of the invention above is not intended to limit key or critical features of embodiments of the invention, nor to limit the scope of the invention. Other features of the present invention will become apparent from the description that follows.

Drawings

In order to more clearly illustrate the application or the technical solutions of the prior art, the following description of the embodiments or the drawings used in the description of the prior art will be given in brief, it being obvious that the drawings in the description below are some embodiments of the application and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a communication scenario provided in an embodiment of the present application;

Fig. 2 is an exemplary diagram of a case where there is still a time domain resource collision after the PUCCH performs carrier switching;

fig. 3 is a flow chart of a channel processing method according to an embodiment of the application;

fig. 4 is a flow chart of a channel processing method according to another embodiment of the present application;

Fig. 5 is a flow chart of a channel processing method according to another embodiment of the present application;

fig. 6 is a flow chart of a channel processing method according to another embodiment of the present application;

Fig. 7 is an exemplary diagram of a first carrier and a second carrier;

Fig. 8 is an exemplary diagram two of a first carrier and a second carrier;

fig. 9 is an exemplary diagram three of a first carrier and a second carrier;

Fig. 10 is a schematic structural diagram of a channel processing device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a channel processing apparatus according to another embodiment of the present application.

Detailed Description

The term "and/or" in the present application describes an association relationship of association objects, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, applicable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (GENERAL PACKET Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR) systems, and the like. Terminals and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved PACKET SYSTEM, EPS), 5G system (5 GS), etc. may also be included in the system.

The terminal according to the embodiment of the application can be a device for providing voice and/or data connectivity for a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of terminals may also be different in different systems, for example in a 5G system, a terminal may be referred to as User Equipment (UE). The terminal may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), and may be mobile terminals, such as mobile telephones (or "cellular" telephones) and computers with mobile terminals, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices, which exchange voice and/or data with the radio access Network. Such as Personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal DIGITAL ASSISTANT, PDA) and the like. A wireless terminal may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal (remote terminal), access terminal (ACCESS TERMINAL), user terminal (user terminal), user agent (user agent), user device (user equipment), and embodiments of the present application are not limited in this respect.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for the terminal. A base station may also be called an access point, or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals, or other names, depending on the particular application. The network device may be configured to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiment of the present application. In some network structures, the network devices may include centralized unit (centralized unit, CU) nodes and Distributed Unit (DU) nodes, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between the network device and the terminal using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

Fig. 1 is a schematic diagram of an application scenario provided in an embodiment of the present application, as shown in fig. 1, where the application scenario in this embodiment is a communication scenario, and the communication scenario includes a network device 110 and a plurality of terminals 120. In fig. 1,3 terminals 120 are taken as an example. The network device 110 and the terminal 120 may perform uplink transmission and downlink transmission through spectrum resources. In uplink transmission, the terminal 120 transmits uplink control information (Uplink Control Information, UCI) to the network device through a physical uplink control channel (Physical Uplink Control Channel, PUCCH). In downlink transmission, the network device 110 transmits downlink control information (Downlink Control Information, DCI) to the terminal 120 through a physical downlink control channel (Physical Downlink Control Channel, PDCCH).

To facilitate solution understanding, the relevant technology and concept of PUCCH will be briefly described:

channel multiplexing and channel dropping for PUCCH

In a communication system, considering that uplink time domain resources of one slot (slot) are limited, a situation that a plurality of PUCCHs overlap in time domain may occur, when a plurality of PUCCHs overlap, UCI carried by the PUCCHs can be transmitted in a combined manner, that is, one PUCCH resource is used as multiplexing resource of UCI carried by a plurality of PUCCHs overlapping in time domain, so that parallel transmission of a plurality of PUCCHs on the same carrier is avoided. For example, UCI on PUCCH with the same physical layer priority may be multiplexed for transmission, UCI on PUCCH with a different physical layer priority may be reserved for UCI on PUCCH with a high physical layer priority, and UCI on PUCCH with a low physical layer priority may be discarded.

(II) Carrier for PUCCH

Taking the carrier aggregation (Carrier Aggregation, CA) scenario as an example, PUCCH is transmitted on the primary carrier (Primary Component Carrier, PCC) or PCell. When PUCCH is configured in the CA scenario for transmission on a Secondary carrier (Secondary Component Carrier, SCC) or a Secondary Cell (Scell), the aggregated carriers in the CA scenario may be divided into two PUCCH carrier groups. There is one designated carrier transmission PUCCH in each PUCCH carrier group: the carrier group comprising PCC is a main PUCCH carrier group, and PUCCH is transmitted on the PCC; the secondary PUCCH carrier groups are all SCCs, and one of the SCCs is configured to transmit PUCCH through higher layer signaling, and the SCC is called PUCCH SCell. In each carrier group, the hybrid automatic repeat request acknowledgements (Hybrid Automatic Repeat request-ACKnowledgment, HARQ-ACKs) for downlink transmissions on all carriers are transmitted in the PUCCH on one designated carrier.

Taking the Dual-Connective (DC) scenario as an example, there are a primary carrier Group (MASTER CARRIER Group, MCG) and a secondary carrier Group (Secondary Carrier Group, SCG), transmitting PUCCH on a specified carrier in each carrier Group. Wherein, the MCG includes a PCC on which the PUCCH is transmitted, the carriers in the MCG are all SCCs, and the PUCCH is transmitted on one of the pre-configured SCCs (or referred to as PSCell).

(III) UCI type

The UCI type includes Information such as HARQ-ACK, channel state Information (CHANNEL STATE Information, CSI), scheduling request (Scheduling Request, SR), and the like.

The HARQ-ACK is a generic term of Acknowledgement (ACK) and negative acknowledgement (Negative Acknowledgement, NACK), and is used for feeding back a PDCCH released by a physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH) or a Semi-persistent scheduling (Semi-PERSISTENT SCHEDULING, SPS) PDSCH (also called SPS PDSCH RELEASE), and informing a network device whether the PDSCH or the PDCCH indicating the SPS PDSCH release is correctly received.

Wherein, SCI is used to feed back the downlink channel quality, helping the network device to perform downlink scheduling better. For example, the network device performs modulation and coding level (Modulation and Coding Scheme, MCS) selection according to SCI, configures appropriate Resource Block (RB) resources, and the like.

The SR is used for requesting, from the network device, a transmission resource of a Physical Uplink shared transmission channel (Physical Uplink SHARED CHANNEL, PUSCH) carrying Uplink traffic when the terminal has the Uplink traffic to be transmitted.

In unpaired spectrum (unpaired spectrum, also called unpaired spectrum, unpaired spectrum), the uplink and downlink transmissions share the same spectrum resource, in other words, the spectrum resource can be used for transmitting both uplink and downlink data. In unpaired spectrum, time division multiplexing (Time-Division Multiplexing, TDM) is required for uplink and downlink, so in one carrier group, the carrier configuring the transmission PUCCH is limited by uplink-downlink matching, and available uplink resources may not be found at a Time domain position that satisfies the processing delay of downlink and is closest in Time, for example, the Time domain position that satisfies the processing delay of downlink is the Time domain position of downlink. At this time, there is a need to wait for the uplink resource available on the carrier configured to transmit the PUCCH, and there is a transmission delay, which affects the communication effect, especially in the ultra-high reliability low-delay communication (Ultra Reliable Low Latency Communication, URLLC) service scenario where the time delay requirement is very high, which affects the performance of URLLC.

For PUCCH transmission delay caused by insufficient time domain resources or time domain resource collision of scheduling of an original carrier (i.e. a carrier configured to transmit PUCCH in a carrier group), one solution proposed at present is to perform carrier switching of PUCCH, i.e. switching PUCCH from the original carrier to another carrier of the same carrier group for transmission. The carrier switching of the PUCCH includes the following switching schemes: 1) The network device dynamically instructs the PUCCH to switch the carrier through the DCI, namely explicitly instructs the PUCCH to switch to a certain carrier through an instruction domain in the DCI; 2) Switching the PUCCH carrier based on a predefined rule, for example, when the time domain resource of the PUCCH on a main cell (PRIMARY CELL, PCELL) conflicts with the time domain resource of a semi-static downlink symbol, switching the PUCCH to other carriers for transmission; 3) PUCCH switching is performed based on a mode (pattern) configured by radio resource control (Radio Resource Control, RRC), for example, periodic configuration is performed based on a time domain subframe, and all PUCCHs on the PCell are switched to other carriers for transmission in the subframe configured with PUCCH switching.

In performing carrier switching of PUCCH based on the above switching schemes 1) and 2), the inventors found that, although the problem of PUCCH transmission delay is solved, another problem to be solved is introduced: the time domain resource conflict still exists after the PUCCH performs carrier switching. For example, fig. 2 is an exemplary diagram of a case where there is a time domain resource collision after the PUCCH performs carrier switching. As shown in fig. 2, PUCCH-1 on the first carrier is switched to the second carrier and transmitted using PUCCH-1 on the second carrier due to time domain collision with a semi-statically configured downlink symbol on the first carrier, and PUCCH-1 resource on the second carrier overlaps PUCCH-2 on the first carrier in time domain. In fig. 2, the subcarrier spacing (sub-CARRIER SPACE, SCS) of the first carrier and the SCS of the second carrier are both 15 kilohertz (kHz), the time slot in which the first carrier and the second carrier are located is the time slot n, the time slot n of the first carrier further includes a semi-statically configured uplink symbol, the time slot n of the second carrier further includes a semi-statically configured uplink symbol, the time domain resource corresponding to the semi-statically configured uplink symbol is an uplink time domain resource, and the time domain resource corresponding to the semi-statically configured downlink symbol is a downlink time domain resource.

In a communication system, considering that parallel transmission of multiple PUCCHs may result in a large peak-to-average power ratio (Peak to Average Power Ratio, PAPR), only one PUCCH is supported for transmission at one time in one cell group (cell group) or PUCCH carrier group. Therefore, in order to solve the problem that there is a time domain resource collision after the PUCCH is carrier switched, the PUCCH having a time domain resource collision after the PUCCH is carrier switched needs to be processed.

The embodiment of the application provides a channel processing method, in the method, under the condition that time domain resources of a first PUCCH on a first carrier wave and time domain resources of a second PUCCH on a second carrier wave have time domain conflicts, the first PUCCH and the second PUCCH are processed according to a channel processing strategy, and the channel processing strategy comprises channel discarding and/or channel multiplexing, so that the processing of the PUCCH with the time domain resources on the first carrier wave and the second carrier wave is realized. Wherein the first carrier and the second carrier are located in the same carrier group. The first carrier is a primary carrier, at this time, the primary carrier is a carrier originally configured for transmitting a PUCCH between the network device and the terminal, and when dual-connectivity transmission is configured, the primary carrier includes a primary carrier in a primary cell group and a primary and secondary carrier (PSCell) in a secondary cell group, and when a PUCCH carrier group is configured, the primary carrier also includes a PUCCH carrier (PUCCH SCell) in each PUCCH carrier group; the second carrier is an auxiliary carrier, at this time, the auxiliary carrier is a carrier that can be used for transmitting PUCCH except the primary carrier, and PUCCH on the primary carrier may be switched to transmit on the auxiliary carrier by means of DCI indication, i.e. the above switching scheme 1), or may be switched to transmit on the auxiliary carrier by means of a predefined rule, i.e. the above switching scheme 2).

Or the first carrier is a carrier originally configured to transmit the PUCCH between the network device and the terminal, the second carrier is a carrier that can be used for transmitting the PUCCH except for the first carrier, and the PUCCH on the first carrier can be switched to be transmitted on the second carrier by a DCI indication manner. It is also possible to switch to transmission on the second carrier by predefined rules.

Therefore, the embodiment of the application realizes the processing of the PUCCH with overlapped time domain resources on the main carrier and the auxiliary carrier, or the processing of the time domain resource conflict between the PUCCH which is switched to the transmission on the auxiliary carrier and the PUCCH which is not switched on the main carrier (or the rest PUCCH or other PUCCHs), or the processing of the time domain resource conflict between the PUCCH which is switched on the carrier and the PUCCH which is not switched on the original carrier.

The method and the device provided by the embodiment of the application are based on the same application conception, and because the principle of solving the problems by the method and the device is similar, the implementation of the device and the method can be mutually referred, and the repetition is not repeated.

The execution subject of the method embodiments of the present application is a terminal or a network device.

Fig. 3 is a flow chart of a channel processing method according to an embodiment of the application. As shown in fig. 3, the method includes:

S301, determining that time domain resources of a first PUCCH on a first carrier and time domain resources of a second PUCCH on a second carrier have time domain conflicts.

The first carrier is a primary carrier, the second carrier is a secondary carrier, and the meanings of the first carrier, the second carrier, the primary carrier, and the secondary carrier may refer to the related content and are not repeated.

Therefore, the first carrier is a carrier originally configured between the terminal and the network device to transmit the first PUCCH and the second PUCCH, and the second carrier is a carrier where the second PUCCH is located after being switched. For example, the network device may instruct the second PUCCH to transmit on the second carrier through DCI, or switch from the first carrier to transmit on the second carrier when the second PUCCH configured on the first carrier overlaps with a semi-statically configured downlink symbol on the first carrier in the time domain. The number of the first PUCCHs may be one or more, for example, a plurality of PUCCHs not being switched are configured on the first carrier, and the number of the second PUCCHs may be one or more, for example, a plurality of second PUCCHs are switched to the second carrier for transmission.

In this step, it is determined whether there is a time domain collision between the time domain resource of the first PUCCH on the first carrier and the time domain resource of the second PUCCH on the second carrier. If the time domain conflict exists between the time domain resource of the first PUCCH on the first carrier and the time domain resource of the second PUCCH on the second carrier, the first PUCCH and the second PUCCH need to be processed; if it is determined that there is no time domain conflict between the time domain resource of the first PUCCH on the first carrier and the time domain resource of the second PUCCH on the second carrier, transmission of the first PUCCH on the first carrier and transmission of the second PUCCH on the second carrier do not affect each other, and processing of the first PUCCH and the second PUCCH is not required.

S302, processing the first PUCCH and the second PUCCH according to a channel processing strategy, wherein the channel processing strategy comprises: channel dropping and/or channel multiplexing.

In this step, in the case where there is a time domain collision between the time domain resource of the first PUCCH on the first carrier and the time domain resource of the second PUCCH on the second carrier, the first PUCCH and the second PUCCH that collide with each other in the time domain may be processed by adopting a channel discarding and/or channel multiplexing manner. In one approach, channel dropping may be employed alone to process the first PUCCH and the second PUCCH; in another manner, channel multiplexing may be used alone to process the first PUCCH and the second PUCCH; in yet another manner, when the first PUCCH and/or the second PUCCH satisfy the preset condition, the first PUCCH and the second PUCCH may be processed by using channel multiplexing, otherwise, the first PUCCH and the second PUCCH may be processed by using channel dropping. Therefore, based on channel discarding and/or channel multiplexing, the processing of time domain collision between the PUCCH after the switching carrier and the PUCCH not switched on the original carrier is realized.

In this step, when the first PUCCH and the second PUCCH that collide with each other in the time domain are processed by adopting channel dropping, the dropped PUCCH and the reserved PUCCH may be determined in the first PUCCH and the second PUCCH, and the reserved PUCCH may be transmitted; when the first PUCCH and the second PUCCH that collide with each other in the time domain are processed using channel multiplexing, UCI on the first PUCCH and UCI on the second PUCCH may be multiplexed for transmission.

In the embodiment of the application, when the first PUCCH on the first carrier collides with the second PUCCH on the second carrier in the time domain, the first PUCCH and the second PUCCH are processed based on channel discarding and/or channel multiplexing, so that the time domain collision between the PUCCH after switching and the PUCCH not switched on the original carrier is processed, the carrier switching scheme of the PUCCH is perfected, and the transmission effect of the PUCCH in the carrier switching scheme of the PUCCH is improved.

In some embodiments, possible implementations of S301 include at least one of: determining that time domain resources of a first PUCCH on a first carrier overlap with time domain resources of a second PUCCH on a second carrier; determining that a time domain resource of a first PUCCH on a first carrier and a time domain resource of a second PUCCH on a second carrier belong to the same time slot; it is determined that a time interval between time domain resources of a first PUCCH on a first carrier and time domain resources of a second PUCCH on a second carrier is less than a first threshold.

In one manner, it is determined whether a time domain resource of a first PUCCH on a first carrier overlaps a time domain resource of a second PUCCH on a second carrier, if so, it is determined that the first PUCCH on the first carrier conflicts with the second PUCCH on the second carrier in the time domain, otherwise, it is determined that the first PUCCH on the first carrier does not conflict with the second PUCCH on the second carrier in the time domain.

In another mode, whether the time domain resource of the first PUCCH on the first carrier and the time domain resource of the second PUCCH on the second carrier belong to the same time slot is determined, if so, the first PUCCH on the first carrier and the second PUCCH on the second carrier are determined to collide in time domain, otherwise, the first PUCCH on the first carrier and the second PUCCH on the second carrier are determined to not collide in time domain. Therefore, even if the first PUCCH on the first carrier and the second PUCCH on the second carrier do not overlap in time domain, whether the first PUCCH and the second PUCCH collide in time domain can be determined by whether the first PUCCH and the second PUCCH on the first carrier are located in the same slot. Under the condition that the time domain resource of the first PUCCH and the time domain resource of the second PUCCH belong to the same time slot, the first PUCCH and the second PUCCH are processed based on channel discarding and/or channel multiplexing, so that the situation that the terminal frequently performs transmission switching between carriers in a shorter time is avoided, and the transmission complexity is reduced.

Optionally, when determining whether the time domain resource of the first PUCCH and the time domain resource of the second PUCCH belong to the same time slot, if the SCS on the first carrier is different from the SCS on the second carrier, a SCS with a smaller value may be selected from the SCS on the first carrier and the SCS on the second carrier, a time slot length is determined based on the selected SCS, and whether the time domain resource of the first PUCCH and the time slot resource of the second PUCCH belong to the same time slot is determined based on the time slot length, where the longer the time slot length, the more PUCCHs are included in one time slot. Therefore, by adopting SCS with smaller value as the time slot length, the accuracy of judging whether the time domain resource of the first PUCCH and the time slot resource of the second PUCCH belong to the same time slot is improved, namely, the accuracy of judging whether the terminal can finish the transmission switching between the carriers in the time interval of the first PUCCH and the second PUCCH is improved.

In yet another manner, it is determined whether a time interval between a time domain resource of a first PUCCH on a first carrier and a time domain resource of a second PUCCH on a second carrier is less than a first threshold, if so, it is determined that the first PUCCH and the second PUCCH collide in the time domain, otherwise, it is determined that the first PUCCH and the second PUCCH do not collide in the time domain. Thus, even if the first PUCCH on the first carrier and the second PUCCH on the second carrier do not overlap in time domain, whether the first PUCCH and the second PUCCH collide in time domain may be determined by whether a time interval between time domain resources of the first PUCCH on the first carrier and time domain resources of the second PUCCH on the second carrier is less than a first threshold. And under the condition that the time interval between the time domain resource of the first PUCCH and the time domain resource of the second PUCCH is smaller than a first threshold value, the first PUCCH and the second PUCCH are processed based on channel discarding and/or channel multiplexing, so that the situation that the terminal frequently performs transmission switching between carriers in a shorter time is avoided, and the transmission complexity is reduced. The first threshold is a preset threshold.

Fig. 4 is a flow chart of a channel processing method according to another embodiment of the application. As shown in fig. 4, the method includes:

S401, determining that there is a time domain conflict between a time domain resource of a first PUCCH on a first carrier and a time domain resource of a second PUCCH on a second carrier.

The implementation principle and technical effect of S401 may refer to the foregoing embodiments, and will not be described herein.

S402, discarding the first PUCCH, and reserving the second PUCCH.

In this step, when there is a time domain conflict between the time domain resource of the first PUCCH and the time domain resource of the second PUCCH, that is, when the first PUCCH and the second PUCCH conflict in time domain, the discarding the first PUCCH on the first carrier includes discarding UCI carried on the first PUCCH, reserving the second PUCCH on the second carrier, and transmitting the second PUCCH on the second carrier. Therefore, by discarding the first PUCCH, the collision of the first PUCCH and the second PUCCH in the time domain is resolved.

Possible implementations of S301 described above are combined:

Optionally, in a case that the time domain resource of the first PUCCH overlaps with the time domain resource of the second PUCCH, the first PUCCH is discarded, and the second PUCCH is reserved.

Optionally, in a case that the time domain resource of the first PUCCH and the time domain resource of the second PUCCH belong to the same slot, the first PUCCH is discarded, and the second PUCCH is reserved.

Optionally, in a case that a time interval between a time domain resource of the first PUCCH and a time domain resource of the second PUCCH is smaller than a first threshold value, the first PUCCH is discarded, and the second PUCCH is reserved.

In some embodiments, in a case where the second PUCCH is indicated to be transmitted on the second carrier by DCI, a time interval between a time domain resource of the PDCCH corresponding to the second PUCCH and a time domain resource of the first PUCCH is determined to be greater than or equal to a second threshold before determining that there is a time domain collision between a time domain resource of the first PUCCH on the first carrier and a time domain resource of the second PUCCH on the second carrier. That is, a time line (timeline) requirement needs to be satisfied between the second PUCCH and the first PUCCH. The PDCCH corresponding to the second PUCCH is a PDCCH carrying DCI indicating that the second PUCCH is transmitted on the second carrier. Therefore, the network device is ensured to have enough time to analyze DCI before preparing and transmitting the first PUCCH so as to determine whether the PUCCH needs to be transmitted on the second carrier, if the PUCCH needs to be transmitted on the second carrier and the PUCCH collides with the first PUCCH in the time domain, the configuration and the transmission of the first PUCCH are not carried out on the first carrier, namely the first PUCCH is discarded, and the situation that the second PUCCH which collides with the first PUCCH in the time domain exists on the second carrier is avoided in the configuration and the transmission process of the first PUCCH on the first carrier or after the configuration is completed is avoided.

Optionally, in the case that only one PUCCH can be transmitted on one carrier in one carrier group in the same timeslot, the network device needs to ensure that a timeline (timeline) is satisfied between the PDCCH corresponding to the second PUCCH and the effective semi-static PUCCH resource in the same timeslot on the first carrier. For example, if a first PUCCH on a first carrier needs to be transmitted in a slot, but it is not determined whether there is a PUCCH on a second carrier in the slot, if it is required to instruct a certain PUCCH on the first carrier to be transmitted through a PUCCH on the second carrier through DCI, it is required to parse the DCI before preparing the first PUCCH on the first carrier. If it is analyzed that there is a PUCCH on the second carrier that needs to be transmitted in the same slot of the first PUCCH, preparation of the first PUCCH on the first carrier is not performed.

Fig. 5 is a flow chart of a channel processing method according to another embodiment of the application. As shown in fig. 5, the method includes:

S501, determining that a time domain resource of a PUCCH on a first carrier has a time domain conflict with a time domain resource of a second PUCCH on a second carrier.

The implementation principle and technical effect of S501 may refer to the foregoing embodiments, and will not be described herein.

S502, determining UCI multiplexing transmission on a first PUCCH and UCI multiplexing transmission on a second PUCCH.

In this step, when there is a time domain conflict between the time domain resource of the first PUCCH and the time domain resource of the second PUCCH, that is, when the first PUCCH and the second PUCCH conflict in time domain, the UCI on the first PUCCH and the UCI on the second PUCCH are determined to be multiplexed and transmitted, that is, the UCI on the first PUCCH and the UCI on the second PUCCH are carried through the same PUCCH, so as to solve the conflict between the first PUCCH and the second PUCCH in time domain. At this time, PUCCH resources for UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH may be determined on the first carrier or the second carrier.

In some embodiments, S502 includes: and determining the PUCCH resource on the second carrier as the resource of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

The PUCCH resource on the second carrier may be the second PUCCH, or may be another PUCCH on the second carrier, for example, when the amount of data that can be carried on the second PUCCH is greater than the sum of the number of information bits of UCI on the first PUCCH and the number of information bits of UCI on the second PUCCH itself, the second PUCCH resource is determined to be a resource for UCI on the first PUCCH and UCI multiplexing transmission on the second PUCCH, or otherwise, the PUCCH resource for UCI on the first PUCCH and UCI multiplexing transmission on the second PUCCH is additionally determined on the second carrier.

Specifically, when the first PUCCH collides with the second PUCCH in the time domain, PUCCH resources for UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH are determined on the second carrier, so that, on one hand, the conflict between the first PUCCH and the second PUCCH in the time domain is solved, and UCI on the first PUCCH and UCI on the second PUCCH are reserved, and on the other hand, UCI on the first PUCCH and UCI on the second PUCCH are multiplexed on the second carrier for transmission under the condition that the PUCCH can be transmitted on the second carrier, which is beneficial to reducing transmission delay of UCI.

Optionally, in the process of determining that the PUCCH resource on the second carrier is a resource for UCI multiplexing transmission on the first PUCCH and UCI on the second PUCCH, determining whether the first PUCCH carries HARQ-ACK of Semi-persistent (Semi-PERSISTENT SCHEDULING, SPS) and whether the second PUCCH carries dynamic HARQ-ACK, if the first PUCCH carries SPS HARQ-ACK and the second PUCCH carries dynamic HARQ-ACK, determining that the PUCCH resource on the second carrier is a multiplexing resource of UCI on the first PUCCH and UCI on the second PUCCH. Therefore, fully considering that when the carrier switching of the PUCCH is performed through the DCI indication, the dynamic HARQ-ACK can be switched based on the indication, and when the SPS HARQ-ACK on the original carrier is not switched, and the dynamic HARQ-ACK is carried on the first PUCCH and the second PUCCH, UCI on the first PUCCH (including the SPS HARQ-ACK on the first PUCCH) and UCI on the second carrier (including the dynamic HARQ-ACK on the second PUCCH) can be combined and transmitted through PUCCH resources on the second carrier through a channel multiplexing manner.

Optionally, in the case that the first PUCCH carries SPS HARQ-ACK and the second PUCCH carries dynamic HARQ-ACK, the codebook of SPS HARQ-ACK of the first PUCCH and the codebook of dynamic HARQ-ACK on the second carrier are cascade and jointly encoded in the UCI on the first PUCCH and UCI multiplexing transmission on the second PUCCH. Specifically, the codebook of SPS HARQ-ACKs may be concatenated after or before the codebook of dynamic HARQ-ACKs on the second carrier, and joint coding transmission may be performed on the concatenated codebook.

Optionally, in the case that the first PUCCH does not carry SPS HARQ-ACK or the second PUCCH does not carry dynamic HARQ-ACK, the first PUCCH is discarded and the second PUCCH is reserved, so that the conflict between the first PUCCH and the second PUCCH in the time domain is resolved.

Possible implementations of S301 described above are combined:

alternatively, S502 is performed in a case where the time domain resource of the first PUCCH overlaps with the time domain resource of the second PUCCH.

Alternatively, S502 is performed in a case where the time domain resource of the first PUCCH and the time domain resource of the second PUCCH belong to the same slot.

Optionally, S502 is performed in a case where a time interval between the time domain resource of the first PUCCH and the time domain resource of the second PUCCH is less than a first threshold value.

Further, in the case where the second PUCCH is indicated to be transmitted on the second carrier by DCI, before determining that there is a time-domain collision between the time-domain resource of the first PUCCH on the first carrier and the time-domain resource of the second PUCCH on the second carrier, it is determined that a time interval between the time-domain resource of the PDCCH corresponding to the second PUCCH and the time-domain resource of the first PUCCH is greater than or equal to a third threshold, where the third threshold may be the same threshold or different from the second threshold in the foregoing embodiment. The PDCCH corresponding to the second PUCCH is a PDCCH carrying DCI indicating that the second PUCCH is transmitted on the second carrier. Therefore, the network device is ensured to have enough time to analyze the DCI before preparing the first PUCCH so as to determine whether the PUCCH needs to be transmitted on the second carrier, if the PUCCH needs to be transmitted on the second carrier and the PUCCH collides with the first PUCCH in the time domain, the configuration of the first PUCCH is not carried out on the first carrier, namely the first PUCCH is discarded, and the situation that the second PUCCH which collides with the first PUCCH in the time domain exists on the second carrier is avoided in the configuration process of the first PUCCH on the first carrier or after the configuration is completed.

The time interval between the time domain resource of the PDCCH corresponding to the second PUCCH and the time domain resource of the first PUCCH is greater than or equal to a third threshold, that is, the time line (timeline) requirement is satisfied between the PDCCH corresponding to the second PUCCH and the first PUCCH.

In some embodiments, S302 or S502 comprises: and in the first PUCCH and the second PUCCH, if the PUCCH resources carrying the dynamic HARQ-ACK exist, determining the PUCCH resources carrying the dynamic HARQ-ACK as the resources of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH, thereby solving the conflict of the first PUCCH and the second PUCCH in the time domain. Specifically, in the first PUCCH and the second PUCCH, if the PUCCH resource carrying the dynamic HARQ-ACK is the first PUCCH, determining that the first PUCCH is a resource for UCI multiplexing transmission on the first PUCCH and UCI on the second PUCCH; if the PUCCH resource carrying the dynamic HARQ-ACK is the second PUCCH, determining the second PUCCH as the resource of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

Optionally, if there is no PUCCH resource carrying dynamic HARQ-ACK in the first PUCCH and the second PUCCH, discarding the first PUCCH, and reserving the second PUCCH.

Optionally, if there is no PUCCH resource carrying dynamic HARQ-ACK in the first PUCCH and the second PUCCH, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the remaining PUCCHs. For example, if the UCI on the first PUCCH is higher in priority than the UCI on the second PUCCH, the first PUCCH is reserved, the second PUCCH is discarded, otherwise the second PUCCH is reserved, and the first PUCCH is discarded.

Optionally, the UCI types sequentially include, in order of UCI priority from high to low: dynamic HARQ-ACK, SPS HARQ-ACK, SR, CSI. That is, the priorities of UCI are: dynamic HARQ-ACK > SPS HARQ-ACK > SR > CSI. For example, when UCI on the first PUCCH is dynamic HARQ-ACK and UCI on the second PUCCH is SR, the first PUCCH may be reserved and the second PUCCH may be discarded.

In some embodiments, S302 or S502 comprises: if the PUCCH resource carrying the dynamic HARQ-ACK exists on the second carrier, determining the PUCCH resource carrying the dynamic HARQ-ACK on the second carrier as the UCI multiplexing transmission resource on the first PUCCH and the UCI multiplexing transmission resource on the second PUCCH, thereby solving the conflict of the first PUCCH and the second PUCCH on the time domain.

Specifically, searching the PUCCH resource carrying the dynamic HARQ-ACK on the second carrier, and if the PUCCH resource carrying the dynamic HARQ-ACK on the second carrier is searched, determining the PUCCH resource carrying the dynamic HARQ-ACK as the resource of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

When the second PUCCH carries dynamic HARQ-ACK, the PUCCH resource carrying dynamic HARQ-ACK on the second carrier may be the second PUCCH or may be a PUCCH resource carrying dynamic HARQ-ACK on a second carrier other than the second PUCCH.

Optionally, if there is no PUCCH resource carrying dynamic HARQ-ACK on the second carrier, the first PUCCH is discarded, and the second PUCCH is reserved.

Optionally, if there is no PUCCH resource carrying dynamic HARQ-ACK on the second carrier, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the remaining PUCCHs. The UCI priority may refer to the foregoing description, and will not be described in detail.

Fig. 6 is a flow chart of a channel processing method according to another embodiment of the application. As shown in fig. 6, the method includes:

S601, determining that time domain resources of a first PUCCH on a first carrier and time domain resources of a second PUCCH on a second carrier have time domain conflicts.

The implementation principle and technical effect of S601 may refer to the foregoing embodiments, and will not be described herein.

S602, processing the first PUCCH and the second PUCCH by adopting channel discarding according to the channel priority, UCI priority or the information bit number of UCI.

The channel priority is the priority of the PUCCH, the UCI priority is the priority of UCI carried on the PUCCH, and the information bit number of the UCI is the data size of the UCI carried on the PUCCH.

In this step, when it is determined that the first PUCCH and the second PUCCH collide in the time domain, one or more PUCCHs to be finally transmitted are determined in the first PUCCH and the second PUCCH according to the channel priority, the UCI priority, or the information bit number of UCI.

Specifically, in the first PUCCH and the second PUCCH, the PUCCH with the highest channel priority may be reserved, and the remaining PUCCHs may be discarded; or the PUCCH with the highest UCI priority can be reserved in the first PUCCH and the second PUCCH, and the rest PUCCH is discarded; or may reserve the PUCCH with the largest number of information bits of UCI in the first PUCCH and the second PUCCH and discard the remaining PUCCHs. Therefore, based on the channel priority, UCI priority and UCI information bit number, the important PUCCH in the first PUCCH and the second PUCCH is reserved preferentially, the influence of channel discarding on communication is reduced, and the channel processing effect is improved.

The channel processing method provided by the embodiments of the present application is described below by way of several examples:

Fig. 7 is an exemplary diagram of a first carrier and a second carrier. As shown in fig. 7, assuming that the first carrier is a PCell, the second carrier is a carrier that can perform PUCCH transmission through PUCCH carrier switching, and the network device and the terminal determine the PUCCH transmission carrier through a DCI indication manner. As can be seen from fig. 7, it is determined based on DCI scheduling PDSCH that PUCCH-1 is transmitted in time slot n of the second carrier, PUCCH-2 is transmitted in time slot n of the first carrier, PUCCH-1 overlaps PUCCH-2 in time domain, wherein PUCCH-1 carries dynamic HARQ-ACK, and PUCCH-2 carries SPS HARQ-ACK/CSI/SR. In addition, the time slot n of the first carrier also comprises a semi-static configured downlink symbol and a semi-static configured uplink symbol, and the time slot n of the second carrier comprises a semi-static configured uplink symbol, wherein the time domain resource corresponding to the semi-static configured uplink symbol is an uplink time domain resource, and the time domain resource corresponding to the semi-static configured downlink symbol is a downlink time domain resource.

If the embodiment shown in fig. 4 is used, PUCCH-2 on the first carrier may be discarded and only PUCCH-1 on the second carrier may be transmitted.

If the embodiment shown in fig. 5 is adopted, it can be determined that PUCCH-2 on the first carrier is multiplexed with PUCCH-1 on the second carrier for transmission. Referring to the alternative, one way is: if the PUCCH-2 on the first carrier bears the SPS HARQ-ACK, multiplexing the SPS HARQ-ACK on the PUCCH on the second carrier for transmission; during multiplexing transmission, the codebook of SPS HARQ-ACK carried by the PUCCH-2 and the codebook of dynamic HARQ-ACK carried by the PUCCH-1 can be cascaded, and based on the total bit number of information obtained after the cascading, the PUCCH resource used for transmitting the multiplexed HARQ-ACK is determined in the PUCCH resource set indicated by the DCI on the second carrier. Another way is: if the PUCCH-2 on the first carrier carries CSI or SR, the PUCCH-2 can be discarded and the PUCCH-1 can be transmitted.

If the embodiment shown in fig. 6 is adopted, the PUCCH-2 and the PUCCH-1 may be processed according to UCI priority order, for example, discarding PUCCH-2 may be determined according to UCI priority order of dynamic HARQ-ACK > SPS HARQ-ACK > SR > CSI, and PUCCH-1 may be transmitted.

Fig. 8 is an example diagram of a first carrier and a second carrier. As shown in fig. 8, on the basis of fig. 7, PUCCH-1 and PUCCH-2 in fig. 8 do not overlap in time domain, but the time interval between PUCCH-1 and PUCCH-2 does not meet the requirement, for example, the switching time required by the terminal is T0, and the interval between the end position of PUCCH-1 and the start position of PUCCH-2 is less than T0, the terminal may not be able to complete switching of PUCCH transmission on different carriers in a short time. Therefore, the case that the time interval between PUCCH-1 and PUCCH-2 does not meet the requirement (the time interval between the time domain resource corresponding to the first PUCCH and the time domain resource corresponding to the second PUCCH in the above embodiment is smaller than the first threshold, or the time domain resource of the first PUCCH and the time domain resource of the second PUCCH are located in the same time slot) needs to be solved. The solution in this case is described above with reference to the solution provided in fig. 7.

In the scenario shown in fig. 8, when the network device schedules PUCCH-1 transmission on the second carrier, it needs to ensure that before the preparation time T1 of the valid PUCCH on the first carrier, the terminal can determine the PUCCH transmission situation on the second carrier, so as to determine whether to transmit PUCCH-2 on the first carrier.

Fig. 9 is an exemplary diagram of a first carrier and a second carrier. As shown in fig. 9, assuming that the first carrier is a PCell and the second carrier is a carrier that can be PUCCH-transmitted through PUCCH carrier switching, the network device and the terminal determine the PUCCH transmission carrier based on a predefined rule. As can be seen from fig. 9, based on the collision of the downlink symbols of the semi-static configuration on the first carrier in the time domain, the downlink symbols of the semi-static configuration on the first carrier are determined, the PUCCH-1 on the first carrier is determined to be an invalid resource, and the PUCCH-2 on the first carrier is determined to be an valid resource and is required to be switched to the second carrier for transmission, and carrier switching is not required. And the PUCCH-1 on the first carrier is switched and then is transmitted by adopting the PUCCH-1 on the second carrier, and the PUCCH-1 on the second carrier and the PUCCH-2 on the first carrier are overlapped in the time domain.

If the embodiment shown in fig. 5 is adopted, it can be determined that PUCCH-2 on the first carrier is transmitted in parallel with PUCCH-1 on the second carrier. Referring to the alternative, one way is: if the PUCCH-2 on the first carrier carries dynamic HARQ-ACK, UCI information carried by the PUCCH-1 on the second carrier can be multiplexed on the PUCCH-2 on the first carrier for transmission; if the PUCCH-1 on the second carrier carries dynamic HARQ-ACK, UCI information carried by the PUCCH-2 on the first carrier can be multiplexed on the PUCCH12 on the second carrier for transmission; if neither the PUCCH-2 on the first carrier nor the PUCCH-1 on the second carrier carries the dynamic HARQ-ACK, one PUCCH is selected for transmission from the PUCCH-2 on the first carrier and the PUCCH-1 on the second carrier based on the physical layer priority (i.e. channel priority) of the PUCCH or the UCI priority or the information bit number of the UCI.

Yet another way is: if the PUCCH-1 on the second carrier carries dynamic HARQ-ACK, UCI information carried by the PUCCH-2 on the first carrier can be multiplexed on the PUCCH12 on the second carrier for transmission, otherwise, one PUCCH is selected from the PUCCH-2 on the first carrier and the PUCCH-1 on the second carrier for transmission based on the physical layer priority of the PUCCH or the UCI priority or the information bit number of the UCI.

If the embodiment shown in fig. 6 is adopted, the PUCCH-1 and PUCCH-2 may be processed with channel priority, or UCI priority, or the number of information bits of UCI.

On the terminal side or on the network side, an embodiment of the present application provides a channel processing apparatus, as shown in fig. 10, where the channel processing apparatus of this embodiment may be a terminal or a network device, and the channel processing apparatus may include a transceiver 1001, a processor 1002, and a memory 1003.

A transceiver 1001 for receiving and transmitting data under the control of a processor 1002.

Wherein in fig. 10, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by the processor 1002 and various circuits of the memory represented by the memory 1003, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1001 may be a plurality of elements, i.e., include a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, and the like. Optionally, when the channel processing device is a terminal, the device may further include a user interface (not shown in the figure), and for different user devices, the user interface may also be an interface capable of being externally connected to a device in need of connection, where the connected device includes, but is not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1002 is responsible for managing the bus architecture and general processing, and the memory 1003 may store data used by the processor 1002 in performing operations.

Alternatively, the processor 1002 may be a central processing unit (central processing unit, CPU), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA), or complex Programmable logic device (Complex Programmable Logic Device, CPLD), and the processor 1002 may also employ a multi-core architecture.

The processor 1002 is configured to execute any of the channel processing methods provided in the embodiments of the present application with respect to the first terminal by calling a computer program stored in the memory 1003 according to the obtained executable instructions. The processor 1002 and the memory 1003 may also be physically separate.

Specifically, the processor 1002, when executing the computer program stored in the memory 1003, performs the following operations: determining that time domain conflict exists between time domain resources of a first PUCCH on a first carrier and time domain resources of a second PUCCH on a second carrier, wherein the first carrier is a main carrier, and the second carrier is an auxiliary carrier; processing the first PUCCH and the second PUCCH according to a channel processing strategy, wherein the channel processing strategy comprises the following steps: channel dropping and/or channel multiplexing.

Optionally, the processor 1002 further performs at least one of the following: determining that time domain resources of a first PUCCH on a first carrier overlap with time domain resources of a second PUCCH on a second carrier; determining that a time domain resource of a first PUCCH on a first carrier and a time domain resource of a second PUCCH on a second carrier belong to the same time slot; it is determined that a time interval between time domain resources of a first PUCCH on a first carrier and time domain resources of a second PUCCH on a second carrier is less than a first threshold.

Optionally, the processor 1002 further performs the following: the first PUCCH is discarded and the second PUCCH is reserved.

Optionally, the processor 1002 further performs the following: and determining that the time interval between the time domain resource of the PDCCH corresponding to the second PUCCH and the time domain resource of the first PUCCH is greater than or equal to a second threshold value.

Optionally, the processor 1002 further performs the following: and determining UCI multiplexing transmission of the first PUCCH and UCI multiplexing transmission of the second PUCCH.

Optionally, the processor 1002 further performs the following: and determining the PUCCH resource on the second carrier as the resource of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

Optionally, the processor 1002 further performs the following: if the first PUCCH carries the semi-persistent hybrid automatic repeat request acknowledgement (SPS HARQ-ACK), and the second PUCCH carries the dynamic HARQ-ACK, determining that the PUCCH resource on the second carrier is the multiplexing resource of UCI on the first PUCCH and UCI on the second PUCCH.

Optionally, the processor 1002 further performs the following: and carrying out cascade and joint coding on the codebook of the SPS HARQ-ACK of the first PUCCH and the codebook of the dynamic HARQ-ACK on the second carrier.

Optionally, the processor 1002 further performs the following: and determining that the time interval between the time domain resource of the PDCCH corresponding to the second PUCCH and the time domain resource of the first PUCCH is greater than or equal to a third threshold value.

Optionally, the processor 1002 further performs the following: and in the first PUCCH and the second PUCCH, if the PUCCH resources carrying the dynamic HARQ-ACK exist, determining the PUCCH resources carrying the dynamic HARQ-ACK as the resources of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

Optionally, the processor 1002 further performs the following: and if the PUCCH resources carrying the dynamic HARQ-ACK do not exist in the first PUCCH and the second PUCCH, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

Optionally, the processor 1002 further performs the following: if the PUCCH resource carrying the dynamic HARQ-ACK exists on the second carrier, determining the PUCCH resource carrying the dynamic HARQ-ACK on the second carrier as the resource of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

Optionally, the processor 1002 further performs the following: if the PUCCH resource carrying the dynamic HARQ-ACK does not exist on the second carrier, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

Optionally, the processor 1002 further performs the following: reserving a PUCCH with highest channel priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCHs; or reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH; or reserving the PUCCH with the maximum information bit number of UCI in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

It should be noted that, the above device provided by the present application can implement all the method steps in the method embodiment, and can achieve the same technical effects, and specific details of the same parts and beneficial effects as those of the method embodiment in the present embodiment are not repeated here.

In a terminal side or a network side, another embodiment of the present application further provides a channel processing apparatus, as shown in fig. 11, where the channel processing apparatus in this embodiment may be a terminal or a network device, and the channel processing apparatus includes:

A first determining unit 1101, configured to determine that there is a time domain conflict between a time domain resource of a first physical uplink control channel PUCCH on a first carrier and a time domain resource of a second PUCCH on a second carrier, where the first carrier is a primary carrier, and the second carrier is a secondary carrier;

A processing unit 1102, configured to process the first PUCCH and the second PUCCH according to a channel processing policy, where the channel processing policy includes: channel dropping and/or channel multiplexing.

Optionally, the first determining unit 1101 is specifically configured to perform at least one of the following operations: determining that time domain resources of a first PUCCH on a first carrier overlap with time domain resources of a second PUCCH on a second carrier; determining that a time domain resource of a first PUCCH on a first carrier and a time domain resource of a second PUCCH on a second carrier belong to the same time slot; it is determined that a time interval between time domain resources of a first PUCCH on a first carrier and time domain resources of a second PUCCH on a second carrier is less than a first threshold.

Optionally, the processing unit 1102 is specifically configured to: the first PUCCH is discarded and the second PUCCH is reserved.

Optionally, the channel processing device further includes:

A second determining unit (not shown) configured to determine that a time interval between the time domain resource of the PDCCH corresponding to the second PUCCH and the time domain resource of the first PUCCH is greater than or equal to a second threshold.

Optionally, the processing unit 1102 is specifically configured to: and determining UCI multiplexing transmission of the first PUCCH and UCI multiplexing transmission of the second PUCCH.

Optionally, the processing unit 1102 is specifically configured to: and determining the PUCCH resource on the second carrier as the resource of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

Optionally, the processing unit 1102 is specifically configured to: if SPS HARQ-ACK is carried on the first PUCCH and dynamic HARQ-ACK is carried on the second PUCCH, determining that the PUCCH resource on the second carrier is the multiplexing resource of UCI on the first PUCCH and UCI on the second PUCCH.

Optionally, the processing unit 1102 is further configured to: and carrying out cascade and joint coding on the codebook of the SPS HARQ-ACK of the first PUCCH and the codebook of the dynamic HARQ-ACK on the second carrier.

Optionally, the channel processing device further includes:

A third determining unit (not shown) configured to determine that a time interval between the time domain resource of the PDCCH corresponding to the second PUCCH and the time domain resource of the first PUCCH is greater than or equal to a third threshold.

Optionally, the processing unit 1102 is specifically configured to: and in the first PUCCH and the second PUCCH, if the PUCCH resources carrying the dynamic HARQ-ACK exist, determining the PUCCH resources carrying the dynamic HARQ-ACK as the resources of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

Optionally, the processing unit 1102 is specifically configured to: and if the PUCCH resources carrying the dynamic HARQ-ACK do not exist in the first PUCCH and the second PUCCH, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

Optionally, the processing unit 1102 is specifically configured to: if the PUCCH resource carrying the dynamic HARQ-ACK exists on the second carrier, determining the PUCCH resource carrying the dynamic HARQ-ACK on the second carrier as the resource of UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

Optionally, the processing unit 1102 is specifically configured to: if the PUCCH resource carrying the dynamic HARQ-ACK does not exist on the second carrier, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

Optionally, the processing unit 1102 is specifically configured to: reserving a PUCCH with highest channel priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCHs; or reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH; or reserving the PUCCH with the maximum information bit number of UCI in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or partly in the form of a software product, or all or part of the technical solution, which is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the channel processing method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

At the terminal side, the embodiment of the application provides a processor readable storage medium, and the processor readable storage medium stores a computer program, where the computer program is used to make a processor execute any of the channel processing methods related to the terminal provided by the embodiment of the application. The processor can realize all the method steps realized by the terminal in the method embodiment and can achieve the same technical effects, and the parts and the beneficial effects which are the same as those of the method embodiment in the embodiment are not described in detail herein.

On the network side, the embodiment of the application provides a processor readable storage medium, and the processor readable storage medium stores a computer program, and the computer program is used for enabling a processor to execute any one of the channel processing methods related to the network device provided by the embodiment of the application. The processor can realize all the method steps realized by the network device in the method embodiment and can achieve the same technical effects, and the parts and the beneficial effects same as those in the method embodiment in the embodiment are not described in detail herein.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, non-volatile storage (NAND FLASH), solid State Disk (SSD)), etc.

The terminal side, in the embodiment of the present application, provides a computer program product including instructions, when the instructions run on a computer, the computer is caused to execute all the method steps implemented by the terminal in the above method embodiment, and the same technical effects can be achieved, and details of the same parts and beneficial effects as those of the method embodiment in the present embodiment are not described in detail herein.

The network side, the embodiment of the present application provides a computer program product containing instructions, when the instructions run on a computer, which cause the computer to execute all the method steps implemented by the network device in the above method embodiment, and the same technical effects can be achieved, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment are omitted herein.

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

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

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

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

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method of channel processing, comprising:

after switching a Physical Uplink Control Channel (PUCCH) from a first carrier to a second carrier for transmission, determining that time domain resources of the first Physical Uplink Control Channel (PUCCH) on the first carrier have time domain conflicts with time domain resources of the second PUCCH on the second carrier; the first physical uplink control channel PUCCH is an unswitched PUCCH on the first carrier, and the second PUCCH is a PUCCH transmitted by switching the first carrier to the second carrier;

Processing the first PUCCH and the second PUCCH according to a channel processing policy, where the channel processing policy includes: channel dropping and/or channel multiplexing;

the determining that the time domain resource of the first PUCCH on the first carrier has a time domain collision with the time domain resource of the second PUCCH on the second carrier includes at least one of:

determining that time domain resources of a first PUCCH on the first carrier overlap with time domain resources of a second PUCCH on the second carrier;

Determining that the time domain resource of the first PUCCH on the first carrier and the time domain resource of the second PUCCH on the second carrier belong to the same time slot;

determining that a time interval between time domain resources of a first PUCCH on the first carrier and time domain resources of a second PUCCH on the second carrier is less than a first threshold.

2. The channel processing method according to claim 1, wherein the processing the first PUCCH and the second PUCCH according to a channel processing policy includes:

Discarding the first PUCCH and reserving the second PUCCH.

3. The channel processing method of claim 2, wherein the determining that there is a time domain collision between time domain resources of a first PUCCH on the first carrier and time domain resources of a second PUCCH on the second carrier further comprises:

and determining that the time interval between the time domain resource of the physical downlink control channel PDCCH corresponding to the second PUCCH and the time domain resource of the first PUCCH is greater than or equal to a second threshold value.

4. The channel processing method according to claim 1, wherein the processing the first PUCCH and the second PUCCH according to a channel processing policy includes:

and determining uplink control information UCI on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

5. The channel processing method of claim 4, wherein the determining that uplink control information UCI on the first PUCCH is multiplexed with UCI on the second PUCCH comprises:

6. The channel processing method of claim 5, wherein the determining that the PUCCH resource on the second carrier is a resource for UCI multiplexing transmission on the first PUCCH with UCI on the second PUCCH comprises:

And if the first PUCCH carries the semi-persistent hybrid automatic repeat request acknowledgement (SPS HARQ-ACK), and the second PUCCH carries the dynamic HARQ-ACK, determining that the PUCCH resource on the second carrier is the multiplexing resource of UCI on the first PUCCH and UCI on the second PUCCH.

7. The channel processing method of claim 6, wherein the processing the first PUCCH and the second PUCCH according to a channel processing policy further comprises:

8. The channel processing method according to any one of claims 5 to 7, wherein before the determining that there is a time domain collision between the time domain resource of the first PUCCH on the first carrier and the time domain resource of the second PUCCH on the second carrier, the channel processing method further comprises:

9. The channel processing method according to claim 1, wherein the processing the first PUCCH and the second PUCCH according to a channel processing policy includes:

10. The channel processing method according to claim 1, wherein the processing the first PUCCH and the second PUCCH according to a channel processing policy includes:

And if no PUCCH resource carrying dynamic HARQ-ACK exists in the first PUCCH and the second PUCCH, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

11. The channel processing method according to claim 1, wherein the processing the first PUCCH and the second PUCCH according to a channel processing policy includes:

12. The channel processing method according to claim 1, wherein the processing the first PUCCH and the second PUCCH according to a channel processing policy includes:

And if the PUCCH resource carrying the dynamic HARQ-ACK does not exist on the second carrier, reserving the PUCCH with the highest UCI priority in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

13. The channel processing method according to claim 1, wherein the processing the first PUCCH and the second PUCCH according to a channel processing policy includes:

or reserving the PUCCH with the largest information bit number of UCI in the first PUCCH and the second PUCCH, and discarding the rest PUCCH.

14. The channel processing method according to claim 10 or 12 or 13, wherein the UCI types sequentially include, in order of UCI priority from high to low: dynamic HARQ-ACK, SPS HARQ-ACK, scheduling request SR, channel state information CSI.

15. A channel processing device comprising a memory, a transceiver, and a processor;

The memory is used for storing a computer program;

the transceiver is used for receiving and transmitting data under the control of the processor;

the processor is configured to read the computer program in the memory and perform the following operations:

After switching a Physical Uplink Control Channel (PUCCH) from a first carrier to a second carrier for transmission, determining that time domain resources of the first PUCCH on the first carrier have time domain conflicts with time domain resources of the second PUCCH on the second carrier; the first PUCCH is a PUCCH that is not switched on the first carrier, and the second PUCCH is a PUCCH that is transmitted on the second carrier after the first carrier is switched to the second carrier;

processing the first PUCCH and the second PUCCH according to a channel processing strategy, wherein the channel processing strategy comprises channel discarding and/or channel multiplexing;

the processor also performs at least one of the following operations:

16. The channel processing device of claim 15, wherein the processor further performs the following operations:

Discarding the first PUCCH and reserving the second PUCCH.

17. The channel processing apparatus of claim 16, wherein the processor further performs the following operations:

18. The channel processing device of claim 15, wherein the processor further performs the following operations:

and determining UCI multiplexing transmission on the first PUCCH and UCI multiplexing transmission on the second PUCCH.

19. The channel processing apparatus of claim 18, wherein the processor further performs the following:

20. The channel processing device of claim 19, wherein the processor further performs the following:

And if the SPS HARQ-ACK is carried on the first PUCCH and the dynamic HARQ-ACK is carried on the second PUCCH, determining that the PUCCH resource on the second carrier is the multiplexing resource of the UCI on the first PUCCH and the UCI on the second PUCCH.

21. The channel processing apparatus of claim 20, wherein the processor further performs the following operations:

22. The channel processing apparatus according to any one of claims 19 to 21, wherein the processor further performs the following operations:

23. The channel processing device of claim 15, wherein the processor further performs the following operations:

24. The channel processing device of claim 15, wherein the processor further performs the following operations:

25. The channel processing device of claim 15, wherein the processor further performs the following operations:

26. The channel processing device of claim 15, wherein the processor further performs the following operations:

27. The channel processing device of claim 15, wherein the processor further performs the following operations:

28. The channel processing apparatus according to claim 24 or 26 or 27, wherein the UCI types sequentially include, in order of UCI priority from high to low: dynamic HARQ-ACK, SPS HARQ-ACK, SR, CSI.

29. A channel processing apparatus, comprising:

A first determining unit, configured to determine that a time domain resource of a first PUCCH on a first carrier has a time domain collision with a time domain resource of a second PUCCH on a second carrier after switching a physical uplink control channel PUCCH from the first carrier to transmission on the second carrier; the first PUCCH is a PUCCH that is not switched on the first carrier, and the second PUCCH is a PUCCH that is transmitted on the second carrier after the first carrier is switched to the second carrier;

A processing unit, configured to process the first PUCCH and the second PUCCH according to a channel processing policy, where the channel processing policy includes: channel dropping and/or channel multiplexing;

the first determining unit is specifically configured to perform at least one of the following operations:

30. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to execute the channel processing method of any one of claims 1-14.