CN111757518B

CN111757518B - Information transmission method and communication device

Info

Publication number: CN111757518B
Application number: CN201910253503.2A
Authority: CN
Inventors: 刘显达; 刘鹍鹏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2022-03-29
Anticipated expiration: 2039-03-29
Also published as: CN111757518A; WO2020199856A1

Abstract

The application provides an information transmission method and a communication device, wherein the method comprises the following steps: determining channel state information, CSI, transmitted in a first time unit, a first hybrid automatic repeat request, HARQ, which is feedback information of data scheduled by a first downlink control information, DCI, and a second HARQ, which is feedback information of data scheduled by a second DCI; determining first Uplink Control Information (UCI) and second UCI, wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI; transmitting at least one of the first UCI and the second UCI. According to the information transmission method, in the multi-site cooperative transmission, the normal transmission of the CSI can be ensured by changing the incidence relation between the CSI and the HARQ. The communication efficiency is improved.

Description

Information transmission method and communication device

Technical Field

The present application relates to the field of communications, and in particular, to a method and a communications apparatus for transmitting information.

Background

In the multi-site cooperative transmission, one terminal device may receive data of a plurality of network devices at the same time. The terminal device may utilize a hybrid automatic repeat request (HARQ) mechanism to feed back the reception of data to the multiple network devices. Specifically, the terminal device may need to feed back Acknowledgement (ACK)/Negative Acknowledgement (NACK) information of the received data to the multiple network devices within a time unit. Meanwhile, the terminal device also needs to feed back Channel State Information (CSI) to the multiple network devices in the time unit. Thus, there is a problem of multiplexing transmission (multiplexing) of multiple CSIs and multiple HARQ in the same time unit. Currently, the association relationship or multiplexing rule between CSI and HARQ needs to be configured through higher layer signaling. Moreover, the CSI is discarded with a high probability, and normal transmission of CSI cannot be guaranteed. Therefore, how to ensure normal transmission of CSI when multiplexing CSI and HARQ becomes an urgent problem to be solved at present.

Disclosure of Invention

The application provides an information transmission method and a communication device, and in multi-site cooperative transmission, normal transmission of CSI can be ensured by changing the incidence relation between CSI and HARQ. The communication efficiency is improved.

In a first aspect, a method for transmitting information is provided, where an execution subject of the method may be either a terminal device or a chip applied to the terminal device. The method comprises the following steps: determining channel state information, CSI, transmitted in a first time unit, a first hybrid automatic repeat request, HARQ, which is feedback information of data scheduled by a first downlink control information, DCI, and a second HARQ, which is feedback information of data scheduled by a second DCI; determining first Uplink Control Information (UCI) and second UCI, wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI; transmitting at least one of the first UCI and the second UCI.

In the information transmission method provided in the first aspect, by changing the association relationship between the CSI and the HARQ, the CSI is associated with all the HARQ in the time unit for transmitting the CSI, that is, the CSI and all the HARQ in the time unit for transmitting the CSI can be multiplexed to form UCI. Normal transmission of CSI can be guaranteed. The communication efficiency is improved.

In a possible implementation manner of the first aspect, a first physical uplink control channel, PUCCH, is used to carry the first UCI, a second PUCCH is used to carry the second UCI, and when the first PUCCH and the second PUCCH overlap in a time domain, the method further includes: discarding the second UCI; the number of symbols occupied by the second UCI is less than the number of symbols occupied by the first UCI, or the number of ACK/NACK bits included in the second UCI is less than the number of ACK/NACK bits included in the first UCI, or the number of ACK bits included in the second UCI is less than the number of ACK bits included in the first UCI, or the number of bits of the second UCI is less than the number of bits of the first UCI.

In a possible implementation manner of the first aspect, the method further includes: determining a first PUCCH in a first PUCCH resource set according to the first DCI and the first UCI; determining a second PUCCH in a second PUCCH resource set according to the second DCI and the second UCI, wherein the first PUCCH resource set and the second PUCCH resource set are not overlapped on a time domain; the transmitting at least one of the first UCI and the second UCI includes: the first UCI is transmitted on the first PUCCH, and/or the second UCI is transmitted on the second PUCCH. In the implementation mode, the correct transmission of the first HARQ can be ensured, and the transmission efficiency of the HARQ is further improved.

In a possible implementation manner of the first aspect, the method further includes: and receiving indication information, wherein the indication information is used for indicating that the CSI is associated with the first HARQ and the second HARQ.

In a possible implementation manner of the first aspect, a first set of control resources is used to carry the first DCI, a second set of control resources is used to carry the second DCI, the first set of control resources is different from the second set of control resources, and the CSI is associated with the first set of control resources and the second set of control resources.

In a possible implementation manner of the first aspect, the indication information is further used to indicate that CSI has an association relationship with the first set of control resources and the second set of control resources. Each bit field value in the indication information corresponds to one or a different set of CORESET index values, or the CORESET group index values, or may correspond to the index values of all CORESETs within one BWP or within one carrier, for example, if CORESET 0 and CORESET 1 are configured within one BWP, then bit '00' of the indication information may indicate CORESET 0, '01' may indicate CORESET 1, and bit '10' may indicate CORESET 0 and CORESET 1. The terminal device determines HARQ bits that can be combined with the CSI according to the association indication information, so that a bitmap can be formed to be loaded on a PUCCH resource through combination, for example, the indication information indicates '10', and the CSI can be combined with HARQ corresponding to DCI received on CORESET 0 or combined with HARQ corresponding to DCI received on CORESET 1.

Optionally, the indication information may also be a CORESET group index value, that is, each CORESET configuration includes an index value representing a CORESET group, where CORESETs with the same index value mean that the CORESETs belong to the same group, HARQ corresponding to DCI received on the same group of CORESETs may be merged, the CORESET group index value is configured in CSI configuration information, and indicates that a bit of CSI may be merged with a HARQ bit corresponding to DCI detected on a configured CORESET or a control resource set corresponding to a CORESET group, and the merged UCI bit is carried on one PUCCH resource.

In a possible implementation manner of the first aspect, a third PUCCH carrying the CSI and a fourth PUCCH carrying the first HARQ overlap in a time domain, and the third PUCCH and a fifth PUCCH carrying the second HARQ overlap in the time domain; or, the third PUCCH and the fourth PUCCH are not overlapped in the time domain, and the first UCI is determined to be multiplexed on the fourth PUCCH; or, the third PUCCH and the fifth PUCCH are not overlapped in a time domain, and it is determined that the first UCI is multiplexed on the fifth PUCCH.

In a second aspect, a method for transmitting information is provided, where an execution subject of the method may be either a network device or a chip applied to the network device. The method comprises the following steps: determining channel state information, CSI, transmitted in a first time unit, a first hybrid automatic repeat request, HARQ, which is feedback information of data scheduled by a first downlink control information, DCI, and a second HARQ, which is feedback information of data scheduled by a second DCI; determining first Uplink Control Information (UCI) and second UCI, wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI; at least one of the first UCI and the second UCI is received.

In the information transmission method provided in the second aspect, in the site cooperation transmission, by changing the association relationship between the CSI and the HARQ, the CSI is associated with all the HARQ in the time unit for transmitting the CSI, that is, the CSI and all the HARQ in the time unit for transmitting the CSI can be multiplexed to form UCI. Normal transmission of CSI can be guaranteed. The communication efficiency is improved.

In a possible implementation manner of the second aspect, a first physical uplink control channel, PUCCH, is used to carry the first UCI, a second PUCCH is used to carry the second UCI, and when the first PUCCH and the second PUCCH overlap in a time domain, the method further includes: receiving the first UCI; the number of symbols occupied by the first UCI is greater than the number of symbols occupied by the second UCI, or the number of ACK/NACK bits included in the first UCI is greater than the number of ACK/NACK bits included in the second UCI, or the number of ACK bits included in the first UCI is greater than the number of ACK bits included in the second UCI, or the number of bits of the first UCI is greater than the number of bits of the second UCI.

In a possible implementation manner of the second aspect, the method further includes: determining a first PUCCH in a first PUCCH resource set according to the first DCI and the first UCI; determining a second PUCCH in a second PUCCH resource set according to the second DCI and the second UCI, wherein the first PUCCH resource set and the second PUCCH resource set are not overlapped on a time domain; the receiving at least one of the first UCI and the second UCI includes: the first UCI is received on the first PUCCH, and/or the second UCI is transmitted on a second PUCCH.

In a possible implementation manner of the second aspect, indication information is sent, where the indication information is used to indicate that the CSI has an association relationship with the first HARQ and the second HARQ.

In a possible implementation manner of the second aspect, a first set of control resources is used to carry the first DCI, a second set of control resources is used to carry the second DCI, the first set of control resources is different from the second set of control resources, and the CSI is associated with the first set of control resources and the second set of control resources.

In a possible implementation manner of the second aspect, the indication information is further used to indicate that CSI is associated with the first set of control resources and the second set of control resources.

In a possible implementation manner of the second aspect, a third PUCCH carrying the CSI and a fourth PUCCH carrying the first HARQ overlap in a time domain, and the third PUCCH and a fifth PUCCH carrying the second HARQ overlap in the time domain; or,

the third PUCCH and the fourth PUCCH are not overlapped in time domain, and the first UCI is determined to be multiplexed on the fourth PUCCH; or,

the third PUCCH and the fifth PUCCH are not overlapped in a time domain, and it is determined that the first UCI is multiplexed on the fifth PUCCH.

In a third aspect, a communication device is provided, which includes means for performing the steps of the method in any one of the first to second aspects and implementations thereof.

In one design, the communication device is a communication chip that may include an input circuit or interface for sending information or data and an output circuit or interface for receiving information or data.

In another design, the communication device is a communication device (e.g., a terminal device or a network device), and the communication chip may include a transmitter for transmitting information or data and a receiver for receiving information or data.

In a fourth aspect, a terminal device is provided that includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to retrieve and execute the computer program from the memory, so that the terminal device performs the method of the first aspect or any one of the possible implementation manners of the first aspect. Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Alternatively, the memory may be integral to the processor or provided separately from the processor.

In a fifth aspect, a network device is provided that includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transmit and receive signals, the memory is configured to store a computer program, and the processor is configured to call and execute the computer program from the memory, so that the network device executes the method of the second aspect or any possible implementation manner of the second aspect. Optionally, the number of the processors is one or more, and the number of the memories is one or more.

In particular implementations, the processor may be configured to perform, for example and without limitation, baseband related processing, and the receiver and transmitter may be configured to perform, for example and without limitation, radio frequency transceiving, respectively. The above devices may be respectively disposed on chips independent from each other, or at least a part or all of the devices may be disposed on the same chip, for example, the receiver and the transmitter may be disposed on a receiver chip and a transmitter chip independent from each other, or may be integrated into a transceiver and then disposed on a transceiver chip. For another example, the processor may be further divided into an analog baseband processor and a digital baseband processor, wherein the analog baseband processor may be integrated with the transceiver on the same chip, and the digital baseband processor may be disposed on a separate chip. With the development of integrated circuit technology, more and more devices can be integrated on the same chip, for example, a digital baseband processor can be integrated on the same chip with various application processors (such as, but not limited to, a graphics processor, a multimedia processor, etc.). Such a chip may be referred to as a system on chip (soc). Whether each device is separately located on a different chip or integrated on one or more chips often depends on the specific needs of the product design. The embodiment of the present application does not limit the specific implementation form of the above device.

In a sixth aspect, a processor is provided, comprising: input circuit, output circuit and processing circuit. The processing circuitry is configured to receive signals via the input circuitry and to transmit signals via the output circuitry, such that the processor performs the method of any one of the possible implementations of the first and second aspects.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the signal output by the output circuit may be output to and transmitted by a transmitter, for example and without limitation, and the input circuit and the output circuit may be the same circuit that functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the present application does not limit the specific implementation manner of the processor and various circuits.

In a seventh aspect, a processing apparatus is provided, including: a memory and a processor. The processor is configured to read the instructions stored in the memory and to receive signals via the receiver and transmit signals via the transmitter to perform the method of any one of the possible implementations of the first and second aspects.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

In a specific implementation process, the memory may be a non-transient memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

In an eighth aspect, there is provided a chip comprising a processor and a memory, the memory being configured to store a computer program, the processor being configured to retrieve and run the computer program from the memory, the computer program being configured to implement the method of the first and second aspects and any possible implementation of the first and second aspects.

In a ninth aspect, there is provided a computer program product, the computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any of the possible implementations of the first and second aspects and the first and second aspects described above.

A tenth aspect provides a computer-readable medium storing a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method of any one of the possible implementations of the first and second aspects and the first and second aspects described above.

Drawings

Fig. 1 is a schematic diagram of data scheduling performed by using 1 DCI in an ideal backhaul scenario in multi-site cooperative transmission.

Fig. 2 is a schematic diagram of another example of data scheduling by using 1 DCI in an ideal backhaul scenario in multi-site cooperative transmission.

Fig. 3 is a schematic diagram of data scheduling by using 2 DCIs in an ideal backhaul scenario in multi-site cooperative transmission.

Fig. 4 is a schematic diagram of data scheduling by using 2 DCIs in a non-ideal backhaul scenario in multi-site cooperative transmission.

Fig. 5 is a schematic interaction diagram of a transmission method of information according to an embodiment of the present application.

Fig. 6 is a schematic interaction diagram of a transmission method of information according to another embodiment of the present application.

Fig. 7 is a schematic interaction diagram of a method of information transfer of some embodiments of the present application.

Fig. 8 is a schematic interaction diagram of a transmission method of information according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 10 is another schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 12 is another schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 13 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 14 is another schematic block diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a future fifth Generation (5G) System, or a New Radio Network (NR), etc.

Terminal equipment in the embodiments of the present application may refer to user equipment, access terminals, subscriber units, subscriber stations, mobile stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user devices. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment.

The Network device in this embodiment may be a device for communicating with a terminal device, where the Network device may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) System or a Code Division Multiple Access (CDMA) System, may also be a Base Station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) System, may also be an evolved node b (eNB, or eNodeB) in an LTE System, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network device in a future 5G Network, or a Network device in a future evolved PLMN Network, and the like, and the embodiment of the present invention is not limited.

In the LTE/LTE-advanced (LTE-a)/NR system defined by the 3rd Generation Partnership Project (3 GPP), the multiple access scheme for the downlink generally employs an Orthogonal Frequency Division Multiple Access (OFDMA) scheme. The downlink resource is divided into a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols as viewed in time (time domain) and a plurality of subcarriers as viewed in frequency (frequency domain). Part of the time-frequency resources in the downlink are used to carry Physical Downlink Control Channels (PDCCH). The PDCCH is used to carry Downlink Control Information (DCI). DCI is control information in a Physical Layer (Physical Layer) in which a network device indicates a User Equipment (UE) behavior. Meanwhile, higher layer signaling may also be used for the network device to indicate the UE behavior. The higher layer signaling is indication information for controlling and managing the relevant UE higher than the physical layer, for example, Radio Resource Control (RRC) signaling and the like. Part of the time-frequency resources in the downlink is used to carry a Physical Downlink Shared Channel (PDSCH). The PDSCH is used to carry data exchanged between the ue and the network device, and is shared by all ues accessing the network system.

Before the network device performs data transmission, the network device needs to notify the terminal device of receiving data in a specific receiving manner on a specific time-frequency resource through DCI for downlink scheduling. Before the terminal device performs data transmission, the network device needs to notify the terminal device of sending data in a specific time frequency resource in a specific sending mode through the DCI. The information bits of the DCI are transmitted to a channel coding module and rate matching is completed, and then modulation of the control information bits is performed according to a specific criterion (e.g., Quadrature Phase Shift Keying (QPSK)), and finally mapped onto a time-frequency domain resource to form a PDCCH. The network device needs to notify the terminal device through the DCI for uplink scheduling to transmit data in a specific transmission mode on a specific time-frequency resource.

The time-frequency resources occupied by the PDCCH are usually configured through a high-layer signaling or through a system message, and in the configuration process, a control-resource set (core) is used as a configuration unit. The DCI information bits (used to schedule the terminal device to receive PDSCH/transmit PUSCH) indicated to the terminal device by the network device are all carried on the PDCCH, or the DCI information bits are carried on the time-frequency resources occupied by the PDCCH. CORESET can be understood as: some specific time frequency resources are adopted to bear DCI signaling on the time frequency resources in the system, and the specific time frequency resources are notified to the terminal equipment through a high-level signaling in advance, so that the terminal equipment can detect the DCI signaling on the specific time frequency resources at the subsequent specific detection time. The control resource set includes time-frequency resource information occupied by the network device for sending the PDCCH, the network device may configure one or more control resource sets for the terminal device, and the network device may send the PDCCH to the terminal device on any control resource set corresponding to the terminal device.

One control resource set is contained in the frequency domain

The number and position of the RBs are configured by high-layer signaling. The frequency domain resource allocation of the control resource set is indicated by a bitmap (bitmap) with 6 RBs as granularity, and usually, one CORESET is indicated in a section of system bandwidth. Meanwhile, the definition of CORESET in the time domain usually includes one slot

One OFDM symbol, one for each OFDM symbol,

the value of (a) may be 1, 2, 3. The number and position of OFDM symbols contained in one CORESET are configured through high-layer signaling. For example, for slot (slot) level scheduling, the CORESET is usually on the first 3 OFDM symbols of a slot, and for non-slot (non-slot) level scheduling (scheduled time domain resource is less than a slot), the CORESET can be anywhere within a slot. One terminal device can be configured with a plurality of CORESET, and each CORESET can be configured with an index number (index value). Wherein, the CORESET index value 0 is generally used for carrying system messages. The configuration information of the CORESET index is also notified by system messages or higher layer signaling, and other CORESET is usually used for carrying DCI common to cells (for indicating control messages common to cells) or DCI specific to terminal devices (for example, PDSCH/PUSCH for scheduling single propagation (unicast)). Each CORESET may be shared by a plurality of terminal devices within a serving cell (with corresponding scheduling being performed by the network device). The shared terminal devices may receive the PDCCH sent by the network device on the time-frequency resource indicated by the core set, and send data to the network device or receive data sent by the network device according to the PDCCH.

The terminal device notifies the base station whether the downlink data is correctly received through a feedback mechanism of a hybrid automatic repeat request (HARQ). The terminal device feeds back HARQ Acknowledgement (ACK)/Negative Acknowledgement (NACK) information corresponding to the downlink data, for example, if the terminal correctly demodulates the downlink data, the ACK information corresponding to the downlink data is fed back to the base station through the PUCCH, and if the terminal does not correctly demodulate the downlink data, the NACK information corresponding to the downlink data is fed back to the base station through the PUCCH, so that the base station can perform retransmission scheduling. Currently, a terminal device feeds back ACK/NACK using Physical Uplink Control Channel (PUCCH) resources within one time unit. Specifically, the PUCCH carries an ACK/NACK signaling corresponding to each PDSCH/each Transport Block (TB), each TB corresponds to an ACK/NACK bit for indicating whether the TB is correctly received, and if the ACK/NACK bit is 0, it indicates that the TB is incorrectly received, that is, the corresponding TB is incorrectly received. If the ACK/NACK bit is 1, it indicates ACK, i.e., the corresponding TB is correctly received. According to the HARQ codeword (codebook), the terminal device may determine that ACK/NACK bits of multiple PDSCHs/TBs may be jointly carried on the same PUCCH, for example, HARQ feedbacks corresponding to the PDSCHs scheduled by multiple DCIs at different times are located in the same slot, and then the multiple HARQ feedback bits converge and form a bitmap (bitmap) to be carried on the same PUCCH.

Besides being used for carrying HARQ, the PUCCH resources may also carry Channel State Information (CSI) fed back by the terminal device, and the network device may configure at least one CSI reporting configuration set, where the configuration set may include: CSI reference signal (CSI-RS) resource configuration information, a CSI measurement and reporting method, CSI reporting contents and a PUCCH resource adopted by CSI reporting. Generally, CSI carried on the PUCCH is periodic or semi-static, that is, a CSI reporting period is configured, and the terminal device may periodically transmit CSI on a corresponding PUCCH resource.

The PUCCH resource may also carry a Scheduling Request (SR) sent by the terminal device, and the network device may allocate a transmission resource to the terminal device according to the SR.

The terminal device may carry one or more of CSI, HARQ, and SR through Uplink Control Information (UCI), that is, the terminal device may perform joint coding on multiple CSI, HARQ, and SR to form UCI, and send the UCI to the network device.

Currently, a network device configures a maximum of 4 PUCCH resource sets (PUCCH resource sets) for a terminal device through Radio Resource Control (RRC) signaling, where each PUCCH resource set includes multiple PUCCH resources. The configuration parameters of each PUCCH resource set may include: PUCCH resource set ID, maximum UCI bit number, and PUCCH resource list (list).

If it is finishedEnd device transport O_UCIAnd each UCI comprises a HARQ-ACK bit, and the terminal equipment can determine a PUCCH resource set adopted by a slot (slot) for currently sending the UCI. Specifically, each PUCCH resource set is configured with a corresponding UCI bit value interval, and the terminal device determines which PUCCH resource set to use according to the UCI bit number actually reported at the current time:

for pucch-ResourceSetId ═ 0, UCI bit value interval is O_UCI2, which includes 1 or 2 HARQ-ACK bits, and an SR request (SR is 0 or 1 bit) transmitted simultaneously with the HARQ-ACK bits.

For pucch-ResourceSetId ═ 1, UCI bit value interval is 2<O_UCI≤N₂In which N is₂Is the maximum UCI bit number configured in PUCCH resource set 1.

For pucch-ResourceSetId ═ 2, UCI bit value interval is N₂<O_UCI≤N₃In which N is₃Is the maximum UCI bit number configured in PUCCH resource set 2.

For pucch-ResourceSetId ═ 3, UCI bit value interval is N₃<O_UCI≤1706。

The configuration parameters of each PUCCH resource may include: PUCCH resource ID, PUCCH resource format (format), and PUCCH resource.

The DCI includes 3 bits of indication information for indicating the terminal device to select one PUCCH resource of the plurality of PUCCH resources configured in the RRC signaling to carry feedback information of the DCI scheduled data.

Currently, in a specific bandwidth (for example, in one carrier), a terminal device does not desire to transmit multiple PUCCHs simultaneously, and if multiple PUCCH resources overlap in the time domain (overlapping), multiplexing (multiplexing) criteria or dropping (dropping) criteria between multiple PUCCH resources are defined.

For example: when a plurality of PUCCH resources carrying CSI overlap in a slot time domain, combining the CSI according to a pre-agreed mode to form a CSI carried on a PUCCH, where the combining method is as follows: and sequentially encoding the multiple CSI. And if each CSI is configured with a PUCCH resource for carrying the CSI, sequencing the CSI of the corresponding overlap according to the priority, and only transmitting the CSI with the highest priority. If each CSI configures a plurality of PUCCH resources used for carrying the CSI, determining one PUCCH resource transmission from the configured PUCCH resources according to the bit number of the CSI, wherein the determination mode comprises the following steps: and determining the total bit number of the CSI, and if no PUCCH resource can carry the CSI, discarding the CSI with lower priority and then re-determining the total bit number until one PUCCH resource can carry the CSI exactly.

Further, for the PUCCH resource carrying CSI, the PUCCH resource carrying HARQ, and the PUCCH resource carrying SR overlap in the same time slot, the RU also needs to consider the multiplexing problem for the transmission of CSI, HARQ, and SR in one time slot. Specifically, the number of bits of the UCI and the corresponding PUCCH resource may be determined according to the following formula.

And the terminal equipment determines the used PUCCH resource set according to the PUCCH resource indicated in the latest DCI and based on the UCI bit number.

If so:

the UCI (including HARQ-ACK, SR and CSI) sent by the terminal equipment is carried in

Of the smallest number of RBs

And satisfy

Otherwise, the terminal equipment receives

Selecting in CSI according to predefined CSI priority principle

CSI, and ensures that:

and satisfies:

wherein, O_ACKIndicating the number of bits of the HARQ-ACK.

O_SRThe number of bits representing the SR.

O_CSI-Part1,nPart1-CSI, O for CSI with priority n_CSI-Part2,nPart2-CSI being CSI with priority n.

The number of all overlapping CSI.

O_CRC＝O_{CRC,CSI-Part1}+O_{CRC,CSI-Part2}Wherein O is_{CRC,CSI-Part1}Cyclic Redundancy Check (CRC) bit number, O, for encoding HARQ-ACK, SR, and Part1-CSI_{CRC,CSI-Part2}The number of CRC bits to encode Part 2-CSI.

And r is the code rate of the PUCCH.

The number of Physical Resource Blocks (PRBs) occupied by the PUCCH.

For the PUCCH format (format)2,

for the PUCCH format3, the PUCCH format,

for the PUCCH format 4,

wherein,

the number of subcarriers within each RB (a number of subcarriers per RB).

The number of symbols occupied by the PUCCH.

Q_m1 denotes a modulation scheme of pi/2-BPSK, Q_m2, the modulation scheme is Binary Phase Shift Keying (BPSK).

According to the above formula, for the multiplexing transmission of CSI, HARQ and SR within one slot, it is possible to determine a PUCCH resource set for transmitting the UCI (including HARQ-ACK, SR and CSI), and determine a PUCCH resource from the determined PUCCH resource set according to the PUCCH resource indicated by the DCI, and transmit the PUCCH resource of the UCI on the PUCCH resource. And if the bit number which can be carried by the PUCCH resource is less than the bit number of the UCI, discarding the CSI according to the priority of the CSI until the PUCCH resource can carry the UCI.

In the downlink transmission, the terminal device may communicate with multiple network devices simultaneously, that is, one terminal device may receive data of multiple network devices simultaneously, and this transmission mode is called coordinated multiple points transmission/reception (CoMP). The network devices in the cooperation set can be respectively connected with different control nodes, and information interaction is performed among the control nodes, for example, the control nodes interact scheduling strategy information to achieve the purpose of cooperative transmission. Or, the network devices in the cooperation set are all connected to the same control node, the control node receives state information (e.g., Channel State Information (CSI) or Reference Signal Received Power (RSRP)) reported by the terminal devices collected by the multiple network devices in the cooperation set, and performs unified scheduling on the terminal devices in the cooperation set according to the state information of all the terminal devices in the cooperation set, and then interacts the scheduling policy with the network devices connected to the terminal devices, and then each network device respectively notifies its terminal device through DCI signaling carried by a PDCCH.

The first method comprises the following steps: dynamic Point Switching (DPS) mode: for a certain terminal device, the network device performing data transmission with the terminal device dynamically switches at different transmission times to select the network device with better current channel condition in the cooperation set and the terminal device as possible to perform data transmission. That is, a plurality of network devices transmit data with a certain terminal device in a time-sharing manner.

And the second method comprises the following steps: coherent transmission (C-JT) mode: the multiple network devices transmit data with a certain terminal device at the same time, and the antennas of the multiple network devices perform joint precoding. I.e. selecting an optimal precoding matrix for joint phase and amplitude weighting between the antennas of the plurality of network devices. Coherent transmission schemes require precise phase alignment of the antennas of multiple network devices so that precise phase weighting is performed among multiple groups of antennas.

And the third is that: non-coherent transmission (NC-JT) mode: the multiple network devices transmit data with a certain terminal device at the same time, and antennas of the multiple network devices perform independent precoding. That is, each network device independently selects an optimal precoding matrix to perform joint phase and amplitude weighting between the antennas of the network device, and the noncoherent transmission mechanism does not require the antennas of multiple network devices to perform accurate phase calibration.

According to the magnitude of information interaction delay between network devices in the coordinated set, the CoMP transmission scenario can be divided into an ideal backhaul (ideal backhaul) scenario and a non-ideal backhaul (non-ideal backhaul) scenario.

An ideal backhaul (ideal backhaul) scenario and a non-ideal backhaul (non-ideal backhaul) scenario will be briefly described below.

For an ideal backhaul (ideal backhaul) scenario, the interaction delay between network devices may be negligible due to the close inter-station distance between network devices or between a network device and a control node, or depending on an optical fiber connection with small transmission loss. In this case, the interaction between the network devices is a dynamic, real-time interactive process. The collaboration mechanisms that can be assumed in general are: the network devices in the cooperation set have a central scheduling node (control node) for performing joint resource scheduling on all terminal devices in the plurality of network devices. The network device is responsible for receiving information such as CSI and scheduling request fed back by the terminal device and feeding back (backhaul) the information to the central scheduling node, the central scheduling node collects feedback of the network device in the cooperation set to complete scheduling and feeds back a scheduling policy to the network device, and a Serving network device (e.g., Serving transmission reception point (Serving TRP)) in the cooperation set sends control information DCI to the terminal device. According to the scheduling policy, the data of the terminal device is issued by the Serving TRP, or the Serving TRP and the cooperative network device (for example, a cooperative transmission receiving point (cooperative TRP)) are jointly issued (cooperative transmission).

For an ideal backhaul (ideal backhaul) scenario, a 1 DCI manner may be adopted for data scheduling indication. As shown in fig. 1, fig. 1 is a schematic diagram illustrating data scheduling by using 1 DCI in an ideal backhaul scenario. Assuming that the TRP1 is used as a serving TRP (i.e., a serving base station), the TRP1 is responsible for issuing DCI1 to a terminal device, and the DCI1 is used for notifying time-frequency resources and a transmission mode occupied by data sent to the terminal device. The TRP2 is a cooperative TRP, and the data of the terminal equipment is jointly transmitted by the TRP1 and the TRP 2. The data sent by the TRP1 is PDSCH1, and the data sent by the TRP2 is PDSCH 2. The transmission method includes the number of transmission layers used for transmitting data, a modulation and coding method of each codeword (codeword), and received beam indication information. One codeword corresponds to a particular transmission layer or transmission layers, and each codeword corresponds to an independent modulation and coding scheme and can dynamically indicate activation and deactivation. For example, in the example shown in fig. 1, two TRPs use 1 layer for transmitting downlink data, two codewords are enabled in the DCI1 sent by the TRP1, each codeword corresponds to 1 specific transmission layer (in the standard, different ports correspond to different transmission layers), and 1 specific receive beam indicator. I.e. one code may correspond to one TRP. Fig. 2 shows a schematic diagram of another example of data scheduling by using 1 DCI in an ideal backhaul scenario. As shown in fig. 2, when TRP1 uses 2 layers for downlink data transmission, a codeword corresponding to 2 specific transmission layers and receive beam indications used by TRP1 is activated in DCI 1. It is to be understood that different codewords may be transmitted by the same TRP (single TRP transmission mode) or by different TRPs. That is, each codeword may correspond to one TRP (CoMP transmission mode). Fig. 2 shows a single TRP transmission mode.

For an ideal backhaul (ideal backhaul) scenario, a 2-DCI manner may also be adopted for data scheduling indication. Fig. 3 shows a schematic diagram of data scheduling by using 2 DCIs in an ideal backhaul scenario. As shown in fig. 3, 2 pieces of DCI (DCI1 and DCI2) may be transmitted by two TRPs, respectively, or may be transmitted by the same TRP. Each DCI corresponds to a time-frequency resource allocation indication and a transmission mode indication of a codeword, that is, each DCI corresponds to a TRP. In this case, the terminal device is required to detect 2 DCIs simultaneously, and simultaneously receive the PDSCH transmitted by two TRPs according to the 2 DCIs obtained by detection and decoding. Compared with the method that 2 PDSCHs are scheduled by only 1 DCI, the method that 2 PDSCHs are scheduled by 2 DCIs can improve the scheduling flexibility on the premise that the DCI bit length is not increased.

For a non-ideal backhaul (non-ideal backhaul) scenario, the interaction delay between network devices (taking TRP as an example) may not be negligible, because the interaction delay between network devices may bring performance loss. Therefore, in this scenario, two TRPs are usually adopted to issue 1 DCI respectively for data scheduling. In this case, only semi-static interaction of scheduling information between two TRPs or between two TRPs and the control node is required. Each DCI may at least independently indicate resource allocation information as well as a modulation coding scheme and a corresponding transmission layer of a corresponding codeword. Fig. 4 shows a schematic diagram of data scheduling by using 2 DCIs in a non-ideal backhaul scenario. As shown in fig. 4, TRP1 transmits DCI1 to the terminal device for scheduling transmission of PDSCH 1. The TRP2 transmits DCI2 to the terminal device for scheduling transmission of PDSCH 2. Each DCI corresponds to one codeword. It should be understood that if the terminal device detects only one DCI in a certain detection period (e.g., one slot), the current transmission is a single-TRP transmission, and if the terminal device detects two DCIs in a certain detection period (e.g., one slot), the current transmission is a multi-TRP transmission.

It should be noted that, for the DCI or DCIs in the ideal backhaul (idle backhaul) scenario and the non-ideal backhaul (non-idle backhaul) scenario, both refer to a terminal device-specific DCI for scheduling downlink data in a certain time period (e.g., a slot, or a DCI detection period of the terminal device). Meanwhile, the data scheduled by the DCIs may occupy the same or partially the same time-frequency resources, and the DCIs are considered as an indication mode in the cooperative transmission mode. At present, two DCI formats for scheduling downlink data are supported in NR, one is a compact DCI format and only includes fields necessary for scheduling data, and the other is a common DCI format and includes fields with more scheduling data, and the length of the common DCI format is usually greater than that of the compact DCI format. In addition to DCI for scheduling downlink data, a network device may also issue a common search space set (CSS). Specifically, in a DCI detection period, the terminal device may detect one DCI or multiple DCIs used for scheduling downlink data, and may also detect common DCI used for indicating a system message, Reference Signal (RS) trigger information, frame structure indication information, and the like. When the network device configures the detection behavior of the terminal device, a plurality of DCI formats are configured in the configuration parameters of the search space, and the terminal device performs a plurality of DCI blind detection attempts according to the configuration information of the plurality of DCI formats.

In the multicarrier aggregation (CA) scheme, the network device may also transmit the DCI on each carrier, and thus the terminal device also needs to have a detection capability of detecting a plurality of DCIs simultaneously within a certain detection period.

For example, 2 DCIs in a non-ideal backhaul (non-ideal backhaul) scenario are taken as an example for illustration,

HARQ corresponding to a plurality of (2 for example) DCI scheduled PDSCHs are fed back to their respective TRPs to avoid interaction delay. The terminal device needs to distinguish 2 DCIs at different times, so as to determine the HARQ bit number fed back to each TRP. For example, the terminal device detects DCI1 and DCI2 at time 1, and detects DCI 3 and DCI4 at time 2, and the above-described DCI1 to DCI4 are all fed back at time 3. DCIs 1 and 3 are issued by TRP1, and DCIs 2 and 4 are issued by TRP 2. If the HARQ bits corresponding to DCI1 and DCI 3 are expected to be jointly encoded and fed back to TRP1 at time 3, and the HARQ bits corresponding to DCI2 and DCI4 are expected to be jointly encoded and fed back to TRP2 at time 3, the terminal device needs to know that DCI at different times corresponds to the same TRP. The corresponding methods of DCI and TRP may be as follows:

the first method comprises the following steps: different CORESET is predefined for different TRPs. For example, if DCI1 and DCI 3 are both detected in CORESET 1, and DCI2 and DCI4 are both detected in CORESET, the terminal device may determine that HARQ corresponding to DCI1 and DCI 3 is fed back to TRP1, and HARQ corresponding to DCI2 and DCI4 is fed back to TRP 2.

And the second method comprises the following steps: the PUCCH resources are grouped in advance, each TRP can only indicate/configure PUCCH resource in a certain group, for example, DCI1 and DCI 3 indicate that PUCCH resource group 1 corresponds to TRP1, and DCI2 and DCI4 indicate PUCCH resource group 2 corresponds to TRP 2. When the terminal device detects the DCI, it can know to which TRP the DCI belongs to transmit.

And the third is that: a certain field in the DCI indicates information characterizing the TRP. For example, the field in DCI1 and DCI 3 indicates that TRP1 is characterized, and the field in DCI2 and 4 indicates that TRP2 is characterized. When the terminal device detects the DCI, it can know to which TRP the DCI belongs to transmit.

And further establishing an association relation between the PUCCH resources carrying the CSI and the TRP based on the information. For example, CSI reporting setting (reporting setting) is associated with the CORESET ID, and specifies that CSI is multiplexed only with HARQ of DCI corresponding to the CORESET ID associated therewith. And the terminal equipment respectively determines the UCI bit corresponding to each TRP according to the incidence relation. Specifically, based on the HARQ/SR corresponding to the TRP and the bit number of the CSI corresponding to the TRP, the terminal device may determine whether the CSI and the HARQ corresponding to each TRP are multiplexed, the bit number of the UCI obtained after multiplexing, and the PUCCH resource for transmitting the UCI. If HARQ overlaps with non-associated CSI, the CSI is discarded (drop). For example, DCI1 corresponds to HARQ 1, DCI2 corresponds to HARQ 2, and if CSI 2 is associated with DCI1 and CSI 1 is associated with DCI2, CSI 2 and HARQ 1 are multiplexed to form UCI 1, and CSI 1 and HARQ 2 are multiplexed to form UCI 2.

Currently, the association relationship between CSI and HARQ/DCI needs to be configured through higher layer signaling. For example, after a plurality of CORESET are configured by the higher layer signaling, the corresponding CORESET ID is configured to different CSI. This configuration increases signaling overhead and design complexity. Meanwhile, the configuration mode can increase the probability of discarding the CSI. For example, assuming that both configured CSI 1 and CSI 2 are associated with DCI2 in advance, if only HARQ 1 corresponding to DCI1 is transmitted in a slot fed back by CSI 1 and CSI 2, all CSI is discarded, and normal transmission of CSI cannot be guaranteed, and because normal transmission of CSI cannot be guaranteed, quality and efficiency of communication may be reduced. Moreover, even if there is HARQ 2 transmission corresponding to DCI2 in slots fed back by CSI 1 and CSI 2, since PUCCH resources of HARQ 2 may overlap PUCCH resources of HARQ 1, when HARQ 2 and HARQ 1 perform multiplexing, it is likely that HARQ 2 will be discarded and modulation is not performed, and transmission of HARQ 2 cannot be guaranteed, and normal transmission of CSI cannot be guaranteed.

In view of this, the present application provides an information transmission method, in a multi-station cooperative transmission, by changing an association relationship between CSI and HARQ, CSI and all HARQ in a time unit for transmitting CSI are associated, that is, CSI and all HARQ in a time unit for transmitting CSI can be multiplexed to form UCI. Normal transmission of CSI can be guaranteed. The communication efficiency is improved.

Fig. 5 is a schematic interaction diagram of a transmission method 100 of information according to an embodiment of the present application, where the method 100 may be applied in an ideal backhaul (idle backhaul) scenario and a non-ideal backhaul (non-idle backhaul) scenario shown in fig. 1 to 4, and of course, may also be applied in other communication scenarios, and the embodiment of the present application is not limited herein.

It should be understood that in the embodiment of the present application, the method 100 is described by taking a terminal device and a network device as an example of execution subjects for executing the steps in the method 100. The network device may be a TRP as shown in fig. 5. By way of example and not limitation, the execution subject for performing the steps in the method 100 may also be a chip applied to a terminal device and a chip applied to a network device.

As shown in fig. 5, the method 100 includes S110 to S130.

S110, the terminal device and the network device determine the CSI, the first HARQ and the second HARQ transmitted in the first time unit, where the first HARQ is feedback information of data scheduled by the first DCI, and the second HARQ is feedback information of data scheduled by the second DCI.

S120, the terminal device and the network device determine first uplink control information UCI and second UCI, wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI.

S130, the terminal device sends at least one of the first UCI and the second UCI to the network device.

Specifically, in a scenario of multi-site cooperative transmission, a plurality of network devices (hereinafter, referred to as TRP as an example) may transmit DCI to the same terminal device for scheduling transmission of data and the like between the respective TRPs and the terminal device. Two TRPs are exemplified. The two TRPs respectively transmit DCI to the terminal equipment, the DCI transmitted by the first TRP to the terminal equipment is called first DCI, and the DCI transmitted by the second terminal equipment to the TRP is called second DCI. The first DCI is used for scheduling a first PDSCH transmitted by the first TRP to the terminal device, and the second DCI is used for scheduling a second PDSCH transmitted by the second TRP to the terminal device. When receiving the first PDSCH and the second PDSCH, the terminal device needs to feed back whether the first PDSCH is correctly received or not to the first TRP through an HARQ mechanism, and feed back whether the second PDSCH is correctly received or not to the second TRP. That is, the terminal device needs to feed back to the first TRP whether ACK/NACK (first HARQ) of the first PDSCH is correctly received, and the terminal device needs to feed back to the second TRP whether ACK/NACK (second HARQ) of the second PDSCH is correctly received. The time domain resource for the terminal equipment to feed back the HARQ is indicated by the DCI. Therefore, the first HARQ and the second HARQ may feed back to the first TRP and the second TRP within one time unit (e.g., the same slot). Also, within the time unit, there may also be CSI(s) that need to be sent to the first TRP and the second TRP. Thus. In step S110, the terminal device and the network device may determine the CSI transmitted in the same time unit and the first HARQ and the second HARQ. Wherein the first HARQ and the second HARQ are feedback information corresponding to the PDSCH transmitted by different TRPs. Specifically, the first HARQ is feedback information of data scheduled by the first DCI transmitted by the first TRP, and the second HARQ is feedback information of data scheduled by the second DCI transmitted by the second TRP.

In this application, the length of the first time unit may be one time slot, or may be less than or greater than one time slot. In the present application, the length of one time unit is not limited. For example, 1 time unit may be one or more subframes; alternatively, it may be one or more time slots; alternatively, it may be one or more symbols. In the embodiments of the present application, the symbol is also referred to as a time domain symbol, and may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol, or may be a single carrier frequency division multiple access (SC-FDMA) symbol, where SC-FDMA is also referred to as an orthogonal frequency division multiplexing with transform precoding (OFDM with TP).

In S120. The terminal equipment determines a first UCI and a second UCI. Wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI. That is, all CSI in the first time unit and all HARQ in the first time unit are multiplexed to form a plurality of UCI, and each UCI includes the CSI. The network device may determine the first UCI and/or the second UCI. That is, the network device may determine only one of the first UCI and the second UCI, or the network device may determine the first UCI and the second UCI.

In S130, the terminal device may transmit at least one of the first UCI and the second UCI to the network device. Accordingly, the network device receives at least one of the first UCI and the second UCI.

According to the information transmission method provided by the application, the CSI is associated with all HARQ in the time unit for transmitting the CSI by changing the association relationship between the CSI and the HARQ, namely, the CSI and all HARQ in the time unit for transmitting the CSI can be multiplexed to form UCI. Normal transmission of CSI can be guaranteed. The communication efficiency is improved.

It should be understood that, in the embodiment of the present application, CSI in the first time unit may also be multiplexed with only part of HARQ in the first time unit. For example, the HARQ multiplexing of CSI in the first time unit with actual transmission in the first time unit may be predefined. For example, multiplexing of CSI with any one of the first HARQ and the second HARQ is defined, where the first HARQ or the second HARQ is actually present in the first time unit, that is, as long as there is a HARQ requiring feedback in the first time unit, the CSI is multiplexed with any one or more of the HARQ, and it is not limited that the CSI is multiplexed with the first HARQ and the second HARQ. I.e. CSI may not be multiplexed with all HARQ in the first time unit.

It should also be understood that, in the embodiment of the present application, the number of CSI in the first time unit may be one, or may be multiple. That is, the CSI may be one CSI or a combination of multiple CSIs. If only one of the CSI in the first time unit is available, the CSI may be multiplexed with a plurality of HARQ to form UCI, respectively. For example. If there are multiple CSI in the first time unit, it may be determined whether all PUCCH resources of CSI overlap in the time domain according to all PUCCH resources of CSI. If the CSI is overlapped, all the overlapped CSI is multiplexed into one or more CSI according to the priority order of the CSI, and then the multiplexed one or more CSI is carried on the non-overlapped PUCCH. This corresponds to one or more non-overlapping CSIs. Each non-overlapping CSI is then multiplexed with all respective HARQ in the first time unit, respectively. Or, without determining whether the multiple CSIs overlap, all the CSIs may be directly multiplexed with all the HARQ channels in the first time unit according to the priority order to obtain multiple UCIs. Or, an association relationship between CSI and the core/core group transmitting DCI may also be established, and since DCI and HARQ also have an association relationship, the association relationship between CSI and HARQ may further be established, whether PUCCHs of all CSI associated with the same core/core group overlap is determined, if so, the overlapping CSI is multiplexed into one CSI according to a priority order of CSI, and then the multiplexed CSI is carried on one PUCCH. This CSI is then multiplexed with HARQ in the first time unit, respectively.

It is also understood that there may be multiple different TRP corresponding HARQ within the first time unit. The first HARQ and the second HARQ are not limited to two HARQ. But to distinguish between the corresponding HARQ of different TRPs. For example, there may also be more HARQ corresponding to TRP in the first time unit.

As a specific implementation manner, as shown in fig. 6, fig. 6 is a schematic interaction diagram of a method for information transmission in some embodiments of the present application, where in some embodiments, a first PUCCH is used to carry the first UCI, and a second PUCCH is used to carry the second UCI, when the first PUCCH and the second PUCCH overlap in a time domain. On the basis of the method steps shown in fig. 5, the method 100 further comprises:

s121, the terminal device discards a second UCI, or only sends a first UCI, where the number of symbols occupied by the second UCI is less than the number of symbols occupied by the first UCI, or the number of ACK/NACK bits included in the second UCI is less than the number of ACK/NACK bits included in the first UCI, or the number of ACK bits included in the second UCI is less than the number of ACK bits included in the first UCI, or the number of bits of the second UCI is less than the number of bits of the first UCI.

Step S130 may include:

s131, the terminal device sends the first UCI on the first PUCCH.

Specifically, the description of steps S110 and S120 shown in fig. 6 may refer to the description of steps S110 and S120, and for brevity, will not be repeated here.

In S121, since CSI and HARQ are multiplexed, a plurality of UCIs are obtained. PUCCH (resource) corresponding to a plurality of UCI may overlap in time domain. If a plurality of UCIs formed after multiplexing the CSI and the HARQ do not overlap in the time domain. That is, the PUCCH carrying the first UCI and the PUCCH carrying the second UCI are not overlapped in the time domain, the terminal device may send both the first UCI and the second UCI to the network device. If PUCCH resources corresponding to multiple UCIs overlap in the time domain, the terminal device needs to select one of the multiple UCIs for transmission. Taking the first UCI and the second UCI as an example, that is, in a case that the PUCCH carrying the first UCI and the PUCCH carrying the second UCI overlap in a time domain, the terminal device needs to discard a part of the UCI to ensure transmission of other UCI in the first time. Specifically, the terminal device may discard the second UCI, and in step S121, the terminal device discards the second UCI, that is, the terminal device only sends the first UCI. Wherein the condition that the transmitted first UCI is satisfied is: the number of symbols occupied by the first UCI is greater than or equal to the number of symbols occupied by the second UCI, or the number of ACK/NACK bits included in the first UCI is greater than or equal to the number of ACK/NACK bits included in the second UCI, or the number of ACK bits included in the first UCI is greater than or equal to the number of ACK bits included in the second UCI. Or the number of bits of the first UCI is greater than or equal to the number of bits of the second UCI.

The condition that the second UCI discarded by the terminal equipment meets is as follows: the number of symbols occupied by the second UCI is less than or equal to the number of symbols occupied by the first UCI, or the number of ACK/NACK bits included by the second UCI is less than or equal to the number of ACK/NACK bits included by the first UCI, or the number of ACK bits included by the second UCI is less than or equal to the number of ACK bits included by the first UCI. Or the number of bits of the second UCI is less than or equal to the number of bits of the first UCI.

Alternatively, the terminal device may select the UCI transmission with higher priority or more important priority and discard the UCI with lower priority or less important priority. For example, according to the pre-configured priority order of each UCI, when the priority of the first UCI is higher than the second priority, the terminal device only transmits the first UCI, or discards the second UCI. The priority order may be configured by higher layer signaling.

In step S131, the terminal device transmits the first UCI only on the first PUCCH

It should be understood that the condition satisfied by the second UCI or the condition satisfied by the first UCI (or may be referred to as a discard criterion) may also include other conditions, and the present application is not limited thereto.

In step 121, PUCCH resources carrying the first UCI and PUCCH resources carrying the second UCI need to be determined. Therefore, the number of bits of the first UCI and the number of bits of the second UCI need to be determined. Since the first UCI includes the first HARQ and CSI, the second UCI includes the second HARQ and CSI. According to the relation on the sub-time domain of the third PUCCH resource bearing the CSI, the fourth PUCCH resource bearing the first HARQ and the fifth PUCCH resource bearing the second HARQ, the PUCCH bearing the first UCI and the PUCCH bearing the second UCI can be determined. Specifically, there are the following three cases:

in the first case: if the third PUCCH resource carrying CSI overlaps with the fourth PUCCH resource carrying the first HARQ and the fifth PUCCH resource carrying the second HARQ in time domain. I.e. the third PUCCH resource overlaps the fourth PUCCH resource in time domain and the third PUCCH resource overlaps the fifth PUCCH resource in time domain. The CSI is multiplexed with the first HARQ and the second HARQ, respectively, to obtain a first UCI and a second UCI. And then determining a plurality of PUCCH resources which can be used for transmitting the first UCI according to the PUCCH resources indicated by the first DCI. Specifically, the first DCI may indicate 4 PUCCH resources, where the 4 PUCCH resources belong to the preconfigured 4 PUCCH resource sets, respectively. That is, the first DCI indicates that one PUCCH resource may be in each PUCCH resource set. After multiplexing the CSI and the first HARQ to obtain the first UCI, the bit number of the first UCI may be determined. And determining which PUCCH resource set the PUCCH resource carrying the first UCI belongs to according to the bit number of the first UCI, and determining the first PUCCH resource carrying the first UCI by combining the PUCCH resource indicated by the first DCI after determining which PUCCH resource set the PUCCH resource carrying the first UCI belongs to. Similarly, for the second UCI, using a similar method, a second PUCCH resource carrying the second UCI may be determined, and if the first PUCCH resource and the second PUCCH resource overlap in the time domain, step S121 is performed. And if the first PUCCH resource and the second PUCCH resource are not overlapped on a time domain, respectively transmitting the first UCI and the second UCI. In the first case, the fourth PUCCH resource carrying the first HARQ and the fifth PUCCH resource carrying the second HARQ may or may not overlap in the time domain.

In the second case: if the third PUCCH resource carrying CSI is not overlapped with the fourth PUCCH resource carrying the first HARQ in time domain. Multiplexing the CSI and the first HARQ to obtain a first UCI, and then according to the bit number of the first UCI. In conjunction with the first DCI, 4 PUCCH resources (fourth PUCCH resources) may be indicated, a first PUCCH resource for transmission of the first UCI is determined. The first PUCCH resource is one of the 4 PUCCH resources indicated by the first DCI, and if none of the 4 PUCCH resources indicated by the first DCI can carry the first UCI, the number of bits of the first UCI is greater than the largest PUCCH resource of the 4 PUCCH resources. The partial CSI is discarded according to the priority of the CSI until there is a PUCCH resource that can carry the first UCI among the 4 PUCCH resources indicated by the first DCI. That is, when the third PUCCH resource carrying CSI and the fourth PUCCH resource carrying the first HARQ do not overlap in the time domain, the first UCI is transmitted (multiplexed) on the fourth PUCCH resource. Similarly, for the second UCI, the CSI and the second HARQ may be multiplexed to obtain a second UCI, and then, according to the bit number of the second UCI, the second DCI may indicate 4 PUCCH resources to determine a second PUCCH resource for transmitting the second UCI. If the first PUCCH resource and the second PUCCH resource overlap in the time domain, step S121 is performed. And if the first PUCCH resource and the second PUCCH resource are not overlapped on a time domain, respectively transmitting the first UCI and the second UCI. Or, if the third PUCCH resource carrying CSI and the fifth PUCCH resource carrying the second HARQ do not overlap in the time domain, CSI may not be multiplexed with the second HARQ, and the second HARQ may be transmitted separately. Or, if the third PUCCH resource carrying CSI does not overlap the fourth PUCCH resource carrying the first HARQ in the time domain, CSI may not be multiplexed with the first HARQ, that is, CSI and the first HARQ are separately transmitted. In the second case, the fourth PUCCH resource carrying the first HARQ and the fifth PUCCH resource carrying the second HARQ may or may not overlap in the time domain.

In the third case: if the third PUCCH resource carrying CSI is not overlapped with the fifth PUCCH resource carrying the second HARQ in the time domain. Multiplexing the CSI and the second HARQ to obtain a second UCI, and then according to the bit number of the second UCI. In conjunction with the second DCI, 4 PUCCH resources (fifth PUCCH resource) may be indicated, a second PUCCH resource for transmission of the second UCI is determined. And if none of the 4 PUCCH resources indicated by the second DCI can carry the second UCI, that is, the number of bits of the second UCI is greater than the largest PUCCH resource of the 4 PUCCH resources. The partial CSI is discarded according to the priority of the CSI until there is a PUCCH resource that can carry the second UCI among the 4 PUCCH resources indicated by the second DCI. That is, when the third PUCCH resource carrying the CSI and the fifth PUCCH resource carrying the second HARQ do not overlap in the time domain, the second UCI is transmitted (multiplexed) on the fifth PUCCH resource. Similarly, for the first UCI, multiplexing the CSI with the second HARQ to obtain a second UCI, and then according to the bit number of the second UCI, determining, in combination with the second DCI, a second PUCCH resource for transmitting the second UCI, where the second PUCCH resource is one of 4 PUCCH resources indicated by the second DCI. If the first PUCCH resource and the second PUCCH resource overlap in the time domain, step S121 is performed. If the third PUCCH resource carrying CSI and the fourth PUCCH resource carrying the first HARQ do not overlap in the time domain, CSI and the first HARQ may not be multiplexed, that is, CSI and the first HARQ are separately transmitted.

In a fourth case: whether a third PUCCH resource bearing CSI is overlapped with a fourth PUCCH resource bearing a first HARQ and a fifth PUCCH resource bearing a second HARQ in a time domain or not, namely whether the third PUCCH resource bearing the CSI is overlapped with the fourth PUCCH resource bearing the first HARQ in the time domain or not and whether the third PUCCH resource bearing the CSI is overlapped with the fifth PUCCH resource bearing the first HARQ in the time domain or not, the CSI and the first HARQ are multiplexed to obtain a first UCI, and the CSI and the first HARQ are multiplexed to obtain a second UCI. And combining the PUCCH resource indicated by the first DCI and the PUCCH resource indicated by the second DCI according to the bit number of the first UCI and the second UCI. Determining a first PUCCH resource carrying the first UCI and a second PUCCH resource carrying the second UCI, and then determining whether the first PUCCH resource and the second PUCCH resource are overlapped in a time domain and whether partial UCI needs to be discarded.

As another specific implementation manner, as shown in fig. 7, fig. 7 is a schematic interaction diagram of a method for information transmission in some embodiments of the present application, and in some embodiments, on the basis of the method steps shown in fig. 5, the method 100 further includes:

s122, determining a first PUCCH in the first PUCCH resource set according to the first DCI and the first UCI; determining a second PUCCH in a second PUCCH resource set according to the second DCI and the second UCI, wherein the first PUCCH resource set and the second PUCCH resource set are not overlapped in a time domain;

the above step S130: the terminal device transmitting at least one of the first UCI and the second UCI includes:

s132, the terminal device sends the first UCI on the first PUCCH, and/or sends the second UCI on the second PUCCH.

Specifically, the first PUCCH resource pool is configured for the first TRP in advance. For example, the first PUCCH resource pool may include the aforementioned 4 PUCCH resource sets, each of which includes a plurality of PUCCH resources. The 4 PUCCH resource sets may be regarded as the first PUCCH resource set. Similarly, for a second PUCCH resource pool that is also pre-configured for a second TRP, the second PUCCH resource pool may also include a plurality of PUCCH resources, and the second PUCCH resource pool may be regarded as a second PUCCH resource set. And, the first and second PUCCH resource sets do not overlap in a time domain. The terminal device may determine a first PUCCH resource in the first PUCCH resource set according to the first DCI. Specifically, since the first DCI may indicate 4 PUCCH resources, the 4 PUCCH resources belong to the preconfigured 4 PUCCH resource sets, respectively. The terminal device determines the 4 PUCCH resources according to the first DCI. And similarly. The terminal device may determine a plurality of PUCCH resources in the second PUCCH resource set according to the second DCI. After the 4 PUCCH resources are determined, further determining, according to the bit number of the first UCI, a first PUCCH resource carrying the first UCI among the 4 PUCCH resources. If none of the 4 PUCCH resources indicated by the first DCI can carry the first UCI, that is, the number of bits of the first UCI is greater than the largest PUCCH resource of the 4 PUCCH resources. The partial CSI is discarded according to the priority of the CSI until there is a PUCCH resource that can carry the first UCI among the 4 PUCCH resources indicated by the first DCI. Similarly, the terminal device may further determine, in the second PUCCH resource set, a second PUCCH resource carrying the second UCI according to the bit number of the second UCI. Since the first and second PUCCH resource sets do not overlap in the time domain. It may be determined that the first PUCCH and the second PUCCH do not overlap in the time domain. That is, a first PUCCH resource for transmitting the first UCI and a second PUCCH resource for transmitting the second UCI are determined. And the first PUCCH resource and the second PUCCH resource do not overlap in a time domain.

In step S131, the terminal device may transmit the first UCI on the first PUCCH resource and/or transmit the second UCI on the second PUCCH resource.

The following describes a procedure for determining PUCCH resources in a resource set with reference to a specific example:

specifically, two resource pools are used for the PUCCH resource configured by the first TRP and the PUCCH resource configured by the second TRP, respectively. The PUCCH resource configurations of the two resource pools partially overlap (or do not overlap). The terminal equipment determines the resource number according to the PUCCH resource indicated by the first DCI. Suppose that for two TRPs to configure 4 PUCCH resource sets respectively, the PUCCH resource number indicated by the DCI issued by each TRP corresponds to one PUCCH resource in each PUCCH resource set of the 4 PUCCH resource sets. The terminal equipment firstly judges whether overlap exists in a time domain with any PUCCH resource in a PUCCH resource pool of a second TRP or not based on the 4 PUCCH resources indicated by the first DCI. Suppose that N >0 non-overlapping PUCCH resources exist in the 4 PUCCH resources compared to the PUCCH resource pool of the second TRP configuration. If N is 1, and non-overlapping PUCCH resource 1 in 4 PUCCH resources belongs to PUCCH resource in PUCCH resource set 0, since PUCCH resource in PUCCH resource set 0 can only transmit first HARQ, the terminal device only transmits first HARQ on PUCCH resource 1, and does not transmit CSI. I.e., the first HARQ and CSI are not multiplexed on PUCCH resource 1. This may reduce the risk of the first HARQ of the first TRP and the second HARQ of the second TRP to be discarded due to the time domain overlap. If there is PUCCH resource belonging to other PUCCH resource sets (marked as PUCCH resource X1, X1 may be any one or more of 1, 2, 3) in the 4 PUCCH resources compared to the PUCCH resource pool of the second TRP configuration: then

If the CSI exists in the time unit of the current transmission of the first HARQ, the terminal equipment judges the number of the CSI which can be multiplexed by the first HARQ according to the maximum UCI bit number which can be carried by the PUCCH resource x 1. That is, the number of bits of the first HARQ + CSI x should be less than the maximum UCI number of bits corresponding to PUCCH resource x 1. If the number of bits of the further first HARQ + CSI x + CSI y is greater than the maximum UCI number of bits corresponding to PUCCH resource x1, the CSI y is discarded. If any added CSI exceeds the maximum UCI bit number corresponding to the PUCCH resource x1, the PUCCH resource x1 only transmits the first HARQ 1 without multiplexing the CSI. That is, after PUCCH resource x1 that does not overlap with the second PUCCH resource is determined, the number of CSI that can be multiplexed by the first HARQ is further determined according to the size of PUCCH resource x 1. The correct transmission of the first HARQ is ensured, and the transmission efficiency of the HARQ is further improved.

If no CSI exists in the time unit of the current transmission of the first HARQ, the terminal device transmits HARQ 1 in PUCCH resource x 1.

According to the information transmission method, the non-overlapped PUCCH resources in the time domain are selected for different UCIs. Can ensure the correct sending of a plurality of UCIs, further ensure the success rate of HARQ transmission, improve the communication efficiency,

optionally, as a specific implementation manner, as shown in fig. 8, fig. 8 is a schematic interaction diagram of a method for information transmission in some embodiments of the present application, and in some embodiments, on the basis of the method steps shown in fig. 5, the method 100 further includes:

s109, the terminal equipment receives indication information, and the indication information is used for indicating that the CSI is associated with the first HARQ and the second HARQ.

Specifically, since in the embodiment of the present application, CSI in the first time unit is multiplexed with all HARQ in the first time unit. Therefore, the network device may notify the terminal device that the CSI has an association relationship with the first HARQ and the second HARQ. The association may be that CSI is multiplexed with all HARQ in the first time unit, or the association may be that CSI is multiplexed with only some HARQ in the first time unit, for example, CSI is multiplexed with HARQ scheduled by DCI in some CORESET in the first time unit. Optionally, the indication information may be carried in higher layer signaling, for example, RRC signaling. Alternatively, the indication information may be carried in configuration information sent by the network device.

It should be understood that the association relationship may also be predefined or preconfigured by the protocol and need not be notified to the terminal device in the form of indication information.

In one embodiment, when the association relationship is that the CSI has an association relationship with all of the multiple HARQ, if only one HARQ needs to feed back in one time unit, the terminal device only needs to determine the first UCI and transmit the first UCI.

Optionally, the method shown in fig. 6 and 7 may also include S109.

In some embodiments of the application, a first set of control resources is used to carry the first DCI and a second set of control resources is used to carry the second DCI, the first set of control resources being different from the second set of control resources.

In particular, since DCI is carried using a set of control resources. The control resource set includes occupied time-frequency resource information for the network device to transmit pdcch (dci). The first DCI is carried on a first set of control resources and the second DCI is carried on a second set of control resources. Since the first set of control resources is different from the second set of control resources, the first DCI and the second DCI are certified to be transmitted by different TRPs. I.e. different sets of control resources correspond to different TRPs. The first TRP utilizes the first control resource set to send the first DCI to the terminal equipment, and the second TRP utilizes the second control resource set to send the first DCI to the terminal equipment. The first TRP corresponds to the first HARQ and the second TRP corresponds to the second HARQ. I.e. the first HARQ and the second HARQ need to be fed back to different network devices.

It should be understood that if a plurality of DCIs are detected on the first control resource set by the terminal device, it means that HARQ feedback bits corresponding to the PDSCHs scheduled by the plurality of DCIs need to be combined into one bitmap 1 in sequence, and if a plurality of DCIs are detected on the second control resource set, it means that HARQ feedback bits corresponding to the PDSCHs scheduled by the plurality of DCIs need to be combined into one bitmap 2 in sequence, and bitmap 1 and bitmap 2 are respectively carried on two PUCCHs; the control resource sets may also be grouped, for example, a first control resource set group and a second control resource set group, if a plurality of DCIs are detected in the first control resource set group, HARQ feedback bits corresponding to a PDSCH scheduled by the DCI need to be sequentially combined into one bitmap 1, if a plurality of DCIs are detected in the second control resource set group, HARQ feedback bits corresponding to a PDSCH scheduled by the plurality of DCIs need to be sequentially combined into one bitmap 2, and bitmap 1 and bitmap 2 are respectively carried on two PUCCHs; it may also be determined according to information indicated by a specific field in the DCI, for example, if the DCI indicates CDM group 0, HARQ feedback bits corresponding to the PDSCH scheduled by the DCI need to be sequentially combined into one bitmap 1, if the DCI indicates CDM group 1, HARQ feedback bits corresponding to the PDSCH scheduled by the DCI need to be sequentially combined into one bitmap 2, and for example, it may also be determined according to a detected DCI scrambling code, for example, if the detected DCI scrambles by scrambling code 1, HARQ feedback bits corresponding to the PDSCH scheduled by the DCI need to be sequentially combined into one bitmap 1, and if the detected DCI scrambles by scrambling code 2, HARQ feedback bits corresponding to the PDSCH scheduled by the DCI need to be sequentially combined into one bitmap 2.

Optionally, the indication information received in S109 may also be used to indicate that CSI has an association relationship with the first control resource set and the second control resource set. Each bit field value in the indication information corresponds to one or a different set of CORESET index values, or the CORESET group index values, or may correspond to the index values of all CORESETs within one BWP or within one carrier, for example, if CORESET 0 and CORESET 1 are configured within one BWP, then bit '00' of the indication information may indicate CORESET 0, '01' may indicate CORESET 1, and bit '10' may indicate CORESET 0 and CORESET 1. The terminal device determines HARQ bits that can be combined with the CSI according to the association indication information, so that a bitmap can be formed to be loaded on a PUCCH resource through combination, for example, the indication information indicates '10', and the CSI can be combined with HARQ corresponding to DCI received on CORESET 0 or combined with HARQ corresponding to DCI received on CORESET 1.

According to the information transmission method provided by the application, in the multi-site cooperative transmission, the CSI is associated with the HARQ in the CSI transmission time unit by changing the association relationship between the CSI and the HARQ, so that the CSI and the HARQ in the CSI transmission time unit can be multiplexed to form UCI. Normal transmission of CSI can be guaranteed. The communication efficiency is improved. Furthermore, when the resource for HARQ transmission is selected, the overlapped time domain resource is selected for each HARQ, so that the correct transmission of the HARQ is ensured, and the transmission efficiency of the HARQ is further improved.

It should be understood that, in various embodiments of the present application, first, second, etc. are merely intended to indicate that a plurality of objects are different. For example, the first DCI and the second DCI are only to indicate different DCIs. And should not have any influence on the DCI itself, the number of DCIs, etc., and the above-mentioned first, second, etc. should not impose any limitation on the embodiments of the present application.

It can be understood that, without collision, the embodiments of the present application may be applied to a scenario with multiple TRPs, that is, multiple HARQ needs to be fed back in the same time unit, and are not limited to only the first HARQ and the second HARQ.

It should be understood that the manner, the case, the category, and the division of the embodiments are only for convenience of description and should not be construed as a particular limitation, and features in various manners, the category, the case, and the embodiments may be combined without contradiction.

It should also be understood that the various numerical references referred to in the examples of the present application are merely for ease of description and distinction and are not intended to limit the scope of the examples of the present application. The sequence numbers of the above processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not be limited in any way to the implementation process of the embodiments of the present application.

It should also be understood that the above description is only for the purpose of facilitating a better understanding of the embodiments of the present application by those skilled in the art, and is not intended to limit the scope of the embodiments of the present application. Various equivalent modifications or changes will be apparent to those skilled in the art in light of the above examples given, for example, some steps in the method 100 described above may not be necessary, or some steps may be newly added, etc. Or a combination of any two or more of the above embodiments. Such modifications, variations, or combinations are also within the scope of the embodiments of the present application.

It should also be understood that the foregoing descriptions of the embodiments of the present application focus on highlighting differences between the various embodiments, and that the same or similar elements that are not mentioned may be referred to one another and, for brevity, are not repeated herein.

It should also be understood that in the embodiment of the present application, "predefining" may be implemented by saving corresponding codes, tables, or other manners that may be used to indicate related information in advance in a device (for example, including a terminal device and a network device), and the present application is not limited to a specific implementation manner thereof.

The information transmission method according to the embodiment of the present application is described in detail above with reference to fig. 5 to 8. Hereinafter, a communication device according to an embodiment of the present application will be described in detail with reference to fig. 9 to 14.

Fig. 9 shows a schematic block diagram of a communication apparatus 200 according to an embodiment of the present application, where the apparatus 200 may correspond to the terminal device described in the method 100, and may also be a chip or a component applied to the terminal device, and each module or unit in the apparatus 200 is respectively used to execute each action or process performed by the terminal device in the method 100, as shown in fig. 9, the apparatus 200 may include a processing unit 210 and a transceiver unit 220. The transceiving unit 220 is used for performing specific signal transceiving under the driving of the processing unit 210.

A processing unit 210, configured to determine channel state information CSI, a first hybrid automatic repeat request HARQ and a second HARQ transmitted in a first time unit, where the first HARQ is feedback information of data scheduled by a first downlink control information DCI, and the second HARQ is feedback information of data scheduled by a second DCI;

the processing unit 210 is further configured to: determining first Uplink Control Information (UCI) and second UCI, wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI;

the transceiving unit 220 is configured to: transmitting at least one of the first UCI and the second UCI.

The communication device provided by the embodiment of the application enables the CSI to be associated with all HARQ in the time unit for transmitting the CSI by changing the association relationship between the CSI and the HARQ, that is, the CSI and all HARQ in the time unit for transmitting the CSI can be multiplexed to form UCI. Normal transmission of CSI can be guaranteed. The communication efficiency is improved.

Optionally, in some embodiments of the present application, a first physical uplink control channel PUCCH is configured to carry the first UCI, a second PUCCH is configured to carry the second UCI, and when the first PUCCH and the second PUCCH overlap in a time domain, the processing unit 210 is further configured to: discarding the second UCI; the number of symbols occupied by the second UCI is less than the number of symbols occupied by the first UCI, or the number of ACK/NACK bits included in the second UCI is less than the number of ACK/NACK bits included in the first UCI, or the number of ACK bits included in the second UCI is less than the number of ACK bits included in the first UCI, or the number of bits of the second UCI is less than the number of bits of the first UCI.

Optionally, in some embodiments of the present application, the processing unit 210 is further configured to: determining a first PUCCH in a first PUCCH resource set according to the first DCI and the first UCI; determining a second PUCCH in a second PUCCH resource set according to the second DCI and the second UCI, wherein the first PUCCH resource set and the second PUCCH resource set are not overlapped on a time domain;

the transceiving unit 220 is further configured to: the first UCI is transmitted on the first PUCCH, and/or the second UCI is transmitted on the second PUCCH.

Optionally, in some embodiments of the present application, the transceiver unit 220 is further configured to: and receiving indication information, wherein the indication information is used for indicating that the CSI is associated with the first HARQ and the second HARQ.

The transceiving unit 220 is further configured to: the first set of control resources is used for carrying the first DCI, the second set of control resources is used for carrying the second DCI, the first set of control resources is different from the second set of control resources, and the CSI has an association relationship with the first set of control resources and the second set of control resources.

Optionally, in some embodiments of the present application, the indication information is further used to indicate that CSI is associated with the first set of control resources and the second set of control resources.

Optionally, in some embodiments of the present application, a third PUCCH carrying the CSI and a fourth PUCCH carrying the first HARQ overlap in a time domain, and the third PUCCH and a fifth PUCCH carrying the second HARQ overlap in the time domain; or, the third PUCCH and the fourth PUCCH are not overlapped in the time domain, and the first UCI is determined to be multiplexed on the fourth PUCCH; or, the third PUCCH and the fifth PUCCH are not overlapped in a time domain, and it is determined that the first UCI is multiplexed on the fifth PUCCH.

Further, the apparatus 200 may further include a storage unit, and the transceiver unit 220 may be a transceiver, an input/output interface, or an interface circuit. The storage unit is used for storing instructions executed by the transceiving unit 220 and the processing unit 210. The transceiving unit 220, the processing unit 210 and the storage unit are coupled to each other, the storage unit stores instructions, the processing unit 210 is configured to execute the instructions stored by the storage unit, and the transceiving unit 220 is configured to perform specific signal transceiving under the driving of the processing unit 210.

It should be understood that for the specific process of each unit in the apparatus 200 to execute the corresponding step, please refer to the description related to the terminal device in the related embodiment in the method corresponding to fig. 5 to fig. 8, which is omitted here for brevity.

Optionally, the transceiver unit 220 may include a receiving unit (module) and a transmitting unit (module) for performing the steps of receiving and transmitting information by the terminal device in the embodiments of the method 100 and the embodiments shown in fig. 5 to 8. Optionally, the communication apparatus 200 may further include a storage unit for storing instructions executed by the processing unit 210 and the transceiver unit 220. The processing unit 210, the transceiver unit 220 and the storage unit are in communication connection, the storage unit stores instructions, the processing unit 210 is used for executing the instructions stored by the storage unit, and the transceiver unit 220 is used for executing specific signal transceiving under the driving of the processing unit 210.

It should be understood that the transceiving unit 220 may be a transceiver, an input/output interface, or an interface circuit. The storage unit may be a memory. The processing unit 210 may be implemented by a processor. As shown in fig. 10, the communication device 300 may include a processor 310, a memory 320, and a transceiver 330.

The communication apparatus 200 shown in fig. 9 or the communication apparatus 300 shown in fig. 10 can implement the steps performed by the terminal device in the embodiments of the method 100 and the embodiments shown in fig. 5 to 9. Similar descriptions may refer to the description in the corresponding method previously described. To avoid repetition, further description is omitted here.

It should also be understood that the communication apparatus 200 shown in fig. 9 or the communication apparatus 300 shown in fig. 10 may be a terminal device.

Fig. 11 shows a schematic block diagram of a communication apparatus 400 according to an embodiment of the present application, where the apparatus 400 may correspond to the network device described in the method 100, and may also be a chip or a component applied to the network device, and each module or unit in the apparatus 400 is respectively configured to execute each action or process performed by the network device in the method 100, as shown in fig. 11, the apparatus 400 may include a processing unit 410 and a transceiver unit 420. The transceiving unit 420 is used for performing specific signal transceiving under the driving of the processing unit 410.

A processing unit 410 for determining channel state information, CSI, first hybrid automatic repeat request, HARQ, and second HARQ transmitted in a first time unit, the first HARQ being feedback information of data scheduled by the first downlink control information, DCI, and the second HARQ being feedback information of data scheduled by the second DCI;

the processing unit 410 is further configured to: determining first Uplink Control Information (UCI) and/or second UCI, wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI;

a transceiver unit 420 configured to receive at least one of the first UCI and the second UCI.

According to the communication device provided by the embodiment of the application, the association relationship between the CSI and the HARQ is changed, so that the CSI is associated with all the HARQ in the time unit for transmitting the CSI, and the normal transmission of the CSI can be ensured. The communication efficiency is improved.

Optionally, in some embodiments of the present application, a first physical uplink control channel PUCCH is used to carry the first UCI, a second PUCCH is used to carry the second UCI, and when the first PUCCH and the second PUCCH overlap in a time domain, the transceiver unit 420 is specifically configured to: receiving the first UCI;

the number of symbols occupied by the first UCI is greater than the number of symbols occupied by the second UCI, or the number of ACK/NACK bits included in the first UCI is greater than the number of ACK/NACK bits included in the second UCI, or the number of ACK bits included in the first UCI is greater than the number of ACK bits included in the second UCI, or the number of bits of the first UCI is greater than the number of bits of the second UCI.

Optionally, in some embodiments of the present application, the processing unit 410 is further configured to: determining a first PUCCH in a first PUCCH resource set according to the first DCI and the first UCI; determining a second PUCCH in a second PUCCH resource set according to the second DCI and the second UCI, wherein the first PUCCH resource set and the second PUCCH resource set are not overlapped on a time domain;

the transceiving unit 420 is specifically configured to: the first UCI is received on the first PUCCH, and/or the second UCI is transmitted on a second PUCCH.

Optionally, in some embodiments of the present application, the transceiver unit 420 is further configured to: and sending indication information, wherein the indication information is used for indicating that the CSI is associated with the first HARQ and the second HARQ.

Optionally, in some embodiments of the present application, a first set of control resources is used to carry the first DCI, a second set of control resources is used to carry the second DCI, the first set of control resources is different from the second set of control resources, and the CSI is associated with the first set of control resources and the second set of control resources.

Optionally, in some embodiments of the present application, a third PUCCH carrying the CSI and a fourth PUCCH carrying the first HARQ overlap in a time domain, and the third PUCCH and a fifth PUCCH carrying the second HARQ overlap in the time domain; or,

It should be understood that for the specific process of each unit in the apparatus 400 to execute the corresponding step, please refer to the description related to the network device in the related embodiment in the method 100 in fig. 5 to fig. 8, which is omitted here for brevity.

Optionally, the transceiver unit 420 may include a receiving unit (module) and a transmitting unit (module) for performing the steps of receiving and transmitting information by the network device in the embodiments of the method 100 and the embodiments shown in fig. 5 to 8. Optionally, the communication device 400 may further include a storage unit for storing instructions executed by the processing unit 410 and the transceiving unit 420. The processing unit 410, the transceiver unit 420 and the storage unit are communicatively connected, the storage unit stores instructions, the processing unit 410 is used for executing the instructions stored by the storage unit, and the transceiver unit 420 is used for executing specific signal transceiving under the driving of the processing unit 410.

It should be understood that the transceiving unit 420 may be a transceiver, an input/output interface, or an interface circuit. The storage unit may be a memory. The processing unit 410 may be implemented by a processor. As shown in fig. 12, the communication device 500 may include a processor 510, a memory 520, and a transceiver 530.

The communication apparatus 400 shown in fig. 11 or the communication apparatus 500 shown in fig. 12 can implement the steps performed by the network device in the embodiments of the foregoing method 100 and the embodiments shown in fig. 5 to 9. Similar descriptions may refer to the description in the corresponding method previously described. To avoid repetition, further description is omitted here.

It should also be understood that the communication apparatus 400 shown in fig. 11 or the communication apparatus 500 shown in fig. 12 may be a network device.

Fig. 13 is a schematic structural diagram of a terminal device 600 provided in the present application. The apparatus 200 or 300 may be configured in the terminal device 600, or the apparatus 200 or 300 itself may be the terminal device 600. Alternatively, the terminal device 600 may perform the actions of the terminal device of the method 100 described above.

For convenience of explanation, fig. 13 shows only main components of the terminal device. As shown in fig. 13, the terminal apparatus 600 includes a processor, a memory, a control circuit, an antenna, and an input-output device.

The processor is mainly configured to process a communication protocol and communication data, control the entire terminal device, execute a software program, and process data of the software program, for example, to support the terminal device to perform the actions described in the above embodiment of the method for indicating a transmission precoding matrix. The memory is mainly used for storing software programs and data, for example, the codebook described in the above embodiments. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit and the antenna together, which may also be called a transceiver, are mainly used for transceiving radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user.

When the terminal device is turned on, the processor can read the software program in the storage unit, interpret and execute the instruction of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data.

Those skilled in the art will appreciate that fig. 13 shows only one memory and processor for ease of illustration. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, and the like, which is not limited in this application.

For example, the processor may include a baseband processor and a central processing unit, the baseband processor is mainly used for processing the communication protocol and the communication data, and the central processing unit is mainly used for controlling the whole terminal device, executing the software program, and processing the data of the software program. The processor in fig. 12 integrates the functions of the baseband processor and the central processing unit, and those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected through a bus or the like. Those skilled in the art will appreciate that the terminal device may include a plurality of baseband processors to accommodate different network formats, the terminal device may include a plurality of central processors to enhance its processing capability, and various components of the terminal device may be connected by various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

For example, in the embodiment of the present application, the antenna and the control circuit with transceiving functions may be regarded as the transceiving unit 601 of the terminal device 600, and the processor with processing function may be regarded as the processing unit 602 of the terminal device 600. As shown in fig. 13, the terminal device 600 includes a transceiving unit 601 and a processing unit 602. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. Alternatively, a device for implementing a receiving function in the transceiver 601 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiver 601 may be regarded as a transmitting unit, that is, the transceiver 601 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitting circuit, etc.

Fig. 14 is a schematic structural diagram of a network device 700 according to an embodiment of the present application, which can be used to implement the functions of the network device in the foregoing method. The network device 700 includes one or more radio frequency units, such as a Remote Radio Unit (RRU) 701 and one or more baseband units (BBUs) (also referred to as digital units, DUs) 702. The RRU 701 may be referred to as a transceiver unit, transceiver circuitry, or transceiver, etc., which may include at least one antenna 7011 and a radio frequency unit 7012. The RRU 701 section is mainly used for transceiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending signaling messages as described in the above embodiments to a terminal device. The BBU 702 is mainly used for baseband processing, base station control, and the like. The RRU 701 and the BBU 702 may be physically disposed together or may be physically disposed separately, i.e., distributed base stations.

The BBU 702 is a control center of the base station, and may also be referred to as a processing unit, and is mainly used for performing baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like. For example, the BBU (processing unit) 702 can be used to control the base station to perform the operation flow of the above-described method embodiments with respect to the network device.

In an example, the BBU 702 may be formed by one or more boards, and the boards may support a radio access network of a single access system (e.g., an LTE system or a 5G system) together, or may support radio access networks of different access systems respectively. The BBU 702 also includes a memory 7021 and a processor 7022. The memory 7021 is used to store necessary instructions and data. For example, the memory 7021 stores the codebook and the like in the above-described embodiments. The processor 7022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the operation flows related to the network device in the above-described method embodiments. The memory 7021 and the processor 7022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

In one possible implementation, with the development of system-on-chip (SoC) technology, all or part of functions of the 702 part and the 701 part may be implemented by SoC technology, for example, by a base station function chip integrating a processor, a memory, an antenna interface, and other devices, and a program of related functions of the base station is stored in the memory and executed by the processor to implement the related functions of the base station. Optionally, the base station function chip can also read a memory outside the chip to implement the relevant functions of the base station.

It should be understood that the structure of the network device illustrated in fig. 14 is only one possible form, and should not limit the embodiments of the present application in any way. This application does not exclude the possibility of other forms of base station structure that may appear in the future.

It should be understood that in the embodiments of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more collections of available media. The available media may be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., DVDs), or semiconductor media. The semiconductor medium may be a solid state disk.

An embodiment of the present application further provides a communication system, including: the terminal device and the network device.

The embodiment of the present application further provides a computer-readable medium for storing a computer program code, where the computer program includes instructions for executing the information transmission method of the embodiment of the present application in the method 100. The readable medium may be a read-only memory (ROM) or a Random Access Memory (RAM), which is not limited in this embodiment of the present application.

The present application also provides a computer program product comprising instructions that, when executed, cause the terminal device and the network device to perform operations of the terminal device and the network device, respectively, corresponding to the above-described methods.

An embodiment of the present application further provides a system chip, where the system chip includes: a processing unit, which may be, for example, a processor, and a communication unit, which may be, for example, an input/output interface, a pin or a circuit, etc. The processing unit can execute computer instructions to enable a chip in the communication device to execute any one of the information transmission methods provided by the embodiments of the present application.

Optionally, any one of the communication devices provided in the embodiments of the present application may include the system chip.

Optionally, the computer instructions are stored in a storage unit.

Alternatively, the storage unit is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, a RAM, and the like. The processor mentioned in any of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of programs of the method for transmitting feedback information. The processing unit and the storage unit may be decoupled, and are respectively disposed on different physical devices, and are connected in a wired or wireless manner to implement respective functions of the processing unit and the storage unit, so as to support the system chip to implement various functions in the foregoing embodiments. Alternatively, the processing unit and the memory may be coupled to the same device.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).

The terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The terms "upstream" and "downstream" appearing in the present application are used to describe the direction of data/information transmission in a specific scenario, for example, the "upstream" direction generally refers to the direction of data/information transmission from the terminal to the network side, or the direction of transmission from the distributed unit to the centralized unit, and the "downstream" direction generally refers to the direction of data/information transmission from the network side to the terminal, or the direction of transmission from the centralized unit to the distributed unit.

Various objects such as various messages/information/devices/network elements/systems/devices/actions/operations/procedures/concepts may be named in the present application, it is to be understood that these specific names do not constitute limitations on related objects, and the named names may vary according to circumstances, contexts, or usage habits, and the understanding of the technical meaning of the technical terms in the present application should be mainly determined by the functions and technical effects embodied/performed in the technical solutions.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), and random access.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of information transmission, comprising:

determining Channel State Information (CSI), a first hybrid automatic repeat request (HARQ) and a second HARQ which are transmitted in a first time unit, wherein the first HARQ is feedback information of data scheduled by first Downlink Control Information (DCI), and the second HARQ is feedback information of data scheduled by second DCI;

determining first Uplink Control Information (UCI) and second UCI, wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI;

transmitting at least one of the first UCI and the second UCI.

2. The method of claim 1, wherein a first Physical Uplink Control Channel (PUCCH) is used for carrying the first UCI, wherein a second PUCCH is used for carrying the second UCI, and wherein when the first PUCCH and the second PUCCH overlap in a time domain, the method further comprises:

discarding the second UCI;

the number of symbols occupied by the second UCI is less than that occupied by the first UCI, or the number of ACK/NACK bits included by the second UCI is less than that included by the first UCI, or the number of ACK bits included by the second UCI is less than that included by the first UCI, or the number of bits of the second UCI is less than that included by the first UCI.

3. The method of claim 1, further comprising:

determining a first PUCCH in a first PUCCH resource set according to the first DCI and the first UCI;

determining a second PUCCH in a second PUCCH resource set according to the second DCI and the second UCI, wherein the first PUCCH resource set and the second PUCCH resource set are not overlapped in a time domain;

the transmitting at least one of the first UCI and the second UCI comprises:

transmitting the first UCI on the first PUCCH and/or transmitting the second UCI on the second PUCCH.

4. The method according to any one of claims 1 to 3, further comprising:

and receiving indication information, wherein the indication information is used for indicating that the CSI is associated with the first HARQ and the second HARQ.

5. The method of claim 1, wherein a first set of control resources is used for carrying the first DCI, and wherein a second set of control resources is used for carrying the second DCI, and wherein the first set of control resources is different from the second set of control resources, and wherein the CSI is associated with the first set of control resources and the second set of control resources.

6. The method of claim 1,

a third PUCCH carrying the CSI and a fourth PUCCH carrying the first HARQ are overlapped in a time domain, and the third PUCCH and a fifth PUCCH carrying the second HARQ are overlapped in the time domain; or,

the third PUCCH and the fourth PUCCH are not overlapped in a time domain, and the first UCI is determined to be multiplexed on the fourth PUCCH; or,

the third PUCCH and the fifth PUCCH are not overlapped in a time domain, and the first UCI is determined to be multiplexed on the fifth PUCCH.

7. A method of information transmission, comprising:

receiving at least one of the first UCI and the second UCI.

8. The method of claim 7, wherein a first Physical Uplink Control Channel (PUCCH) is used for carrying the first UCI, wherein a second PUCCH is used for carrying the second UCI, and wherein when the first PUCCH and the second PUCCH overlap in a time domain, the method further comprises:

receiving the first UCI;

wherein the number of symbols occupied by the first UCI is greater than the number of symbols occupied by the second UCI, or the number of ACK/NACK bits included in the first UCI is greater than the number of ACK/NACK bits included in the second UCI, or the number of ACK bits included in the first UCI is greater than the number of ACK bits included in the second UCI, or the number of bits of the first UCI is greater than the number of bits of the second UCI.

9. The method of claim 7, further comprising:

the receiving at least one of the first UCI and the second UCI comprises:

receiving the first UCI on the first PUCCH and/or transmitting the second UCI on a second PUCCH.

10. The method according to any one of claims 7 to 9, further comprising:

and sending indication information, wherein the indication information is used for indicating that the CSI is associated with the first HARQ and the second HARQ.

11. The method of claim 7, wherein a first set of control resources is used for carrying the first DCI, wherein a second set of control resources is used for carrying the second DCI, wherein the first set of control resources is different from the second set of control resources, and wherein the CSI is associated with the first set of control resources and the second set of control resources.

12. The method of claim 7,

13. A communication apparatus, comprising means for performing the steps of the method of any one of claims 1 to 6 or 7 to 12.

14. A communications apparatus comprising at least one processor configured to perform the method of any one of claims 1 to 6 or 7 to 12 and interface circuitry.

15. A terminal device, characterized in that it comprises a communication apparatus according to claim 13 or 14.

16. A network device comprising a communication apparatus according to claim 13 or 14.

17. A computer-readable storage medium, in which a program is stored which, when being executed by a processor, causes the method according to any one of claims 1 to 12 to be performed.

18. A chip system, comprising: a processor for calling and running a computer program from a memory so that a communication device in which the system-on-chip is installed performs the method of any one of claims 1 to 12.