CN116134770A

CN116134770A - Method and device for determining HARQ-ACK codebook

Info

Publication number: CN116134770A
Application number: CN202080104457.0A
Authority: CN
Inventors: 李军; 焦淑蓉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2023-05-16
Also published as: WO2022027688A1

Abstract

The application discloses a method and a device for determining a HARQ-ACK codebook, wherein the method comprises the following steps: when the network device configures that the maximum codeword number that can be scheduled by one DCI is 2, and when the terminal device receives a first DCI from the network device and the first DCI indicates a high priority, the terminal device can reserve information bits for HARQ feedback information corresponding to the first DCI in a HARQ-ACK codebook with high priority according to one codeword, so that the size of the high-priority HARQ-ACK codebook can be effectively limited, and the transmission performance of the high-priority HARQ-ACK codebook can be improved.

Description

Method and device for determining HARQ-ACK codebook

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for determining an HARQ-ACK codebook.

Background

When the terminal device receives a physical downlink shared channel (physical downlink shared channel, PDSCH) sent by the network device, the terminal device needs to send hybrid automatic repeat request acknowledgement (hybrid automatic repeat request acknowledgment, HARQ-ACK) feedback information to the network device, and tell the network device whether a Transport Block (TB) carried on the PDSCH is successfully decoded. If the TB is successfully decoded, the terminal device feeds back an Acknowledgement (ACK); if the TB is not successfully decoded, the terminal device feeds back a negative acknowledgement (negative acknowledgement, NACK).

Typically, the HARQ-ACK feedback information bearer is sent to the network device in a HARQ-ACK codebook, where one HARQ-ACK codebook may include HARQ-ACK feedback information corresponding to one or more downlink control information (downlink control information, DCI). The HARQ-ACK codebook may also have a priority concept in order to support both high reliability and low-latency communication (URLLC) and enhanced mobile broadband (enhanced mobile broadband, eMBB) services. For example, the URLLC service corresponds to a high-priority HARQ-ACK codebook for carrying HARQ-ACK feedback information for data of the URLLC service, and the eMBB service corresponds to a low-priority HARQ-ACK codebook for carrying HARQ-ACK feedback information for data of the eMBB service. Because the requirement of the URLLC service on reliability and time delay is high, how the high-priority HARQ-ACK codebook is transmitted is a problem to be solved.

Disclosure of Invention

The application provides a method and a device for determining an HARQ-ACK codebook, which are used for determining the bit number of HARQ-ACK feedback information corresponding to one DCI in a high-priority HARQ-ACK codebook.

In a first aspect, embodiments of the present application provide a method for determining a HARQ-ACK codebook, where the method may be performed by a terminal device, or may be performed by a component (e.g., a chip or a circuit) configured in the terminal device, and in the following description of the present application, the method will be described by taking the terminal device to perform the method as an example.

The method may include: the terminal equipment receives first configuration information from the network equipment, wherein the first configuration information indicates that one DCI schedules at most two code words; the terminal equipment receives first DCI from the network equipment, wherein the first DCI is used for scheduling first data and indicates high priority; the terminal equipment sends an HARQ-ACK codebook to the network equipment, wherein the HARQ-ACK codebook is a high-priority HARQ-ACK codebook, the HARQ-ACK codebook comprises HARQ-ACK feedback information corresponding to first DCI, and the bit number of the HARQ-ACK feedback information is determined according to one codeword.

By adopting the technical scheme, under the condition that the network equipment is configured with the maximum codeword number which can be scheduled by one DCI as 2, when the first DCI indicates high priority, the terminal equipment can still reserve information bits for the HARQ feedback information corresponding to the first DCI in the HARQ-ACK codebook with high priority according to one codeword, so that the size of the high priority HARQ-ACK codebook can be effectively limited, and the transmission performance of the high priority HARQ-ACK codebook is improved.

In one possible design of the first aspect, the determining the number of bits of the HARQ-ACK feedback information according to one codeword may include: the bit number of the HARQ-ACK information is 1 or N, wherein N is the maximum CBG number of each transmission block, and N is a positive integer greater than 1.

In one possible design of the first aspect, the first DCI indicating a high priority may include: the first DCI comprises a priority indication field, and the priority indication field indicates high priority; alternatively, the default priority of the first DCI is a high priority.

In one possible design of the first aspect, the format of the first DCI is a first DCI format or a second DCI format, where the first DCI format supports scheduling one codeword or two codewords and the second DCI format supports scheduling only one codeword.

In one possible design of the first aspect, when the first DCI is a first DCI format, the first DCI schedules only one codeword.

In a second aspect, embodiments of the present application provide a method for determining a HARQ-ACK codebook, where the method may be performed by a network device, or may be performed by a component (e.g., a chip or a circuit) configured in the network device, and in the following description of the present application, the method will be described by taking the network device as an example.

The method may include: the network equipment sends first configuration information to the terminal equipment, wherein the first configuration information indicates that one DCI schedules at most two code words; the network equipment sends first DCI to the terminal equipment, wherein the first DCI is used for scheduling first data, and the first DCI indicates high priority; the network equipment receives an HARQ-ACK codebook from the terminal equipment, wherein the HARQ-ACK codebook is a high-priority HARQ-ACK codebook, the HARQ-ACK codebook comprises HARQ-ACK feedback information corresponding to first DCI, and the bit number of the HARQ-ACK feedback information is determined according to one codeword.

In one possible design of the second aspect, when the first DCI is a first DCI format, the first DCI schedules only one codeword.

In a third aspect, an embodiment of the present application provides a communication apparatus, where the apparatus has a function of implementing a terminal device in any one of the foregoing first aspect or any one of the possible designs of the first aspect, and the apparatus may be a terminal device or may be a chip included in a terminal device.

The communication device may also have the function of implementing the network device in the second aspect or any of the possible designs of the second aspect, and the device may be a network device or may be a chip included in the network device.

The functions of the communication device may be implemented by hardware, or may be implemented by executing corresponding software by hardware, where the hardware or software includes one or more modules or units or means (means) corresponding to the functions.

In one possible design, the structure of the apparatus includes a processing module and a transceiver module, where the processing module is configured to support the apparatus to perform the corresponding function of the terminal device in the first aspect or any of the designs of the first aspect, or perform the corresponding function of the network device in the second aspect or any of the designs of the second aspect. The transceiver module is configured to support communication between the apparatus and other communication devices, for example, when the apparatus is a terminal device, the transceiver module may receive first configuration information from a network device. The communication device may also include a memory module coupled to the processing module that holds the program instructions and data necessary for the device. As an example, the processing module may be a processor, the communication module may be a transceiver, and the storage module may be a memory, where the memory may be integrated with the processor or may be separately provided from the processor.

In another possible design, the device may include a processor and may also include a memory. The processor is coupled to the memory and operable to execute computer program instructions stored in the memory to cause the apparatus to perform the method of the first aspect or any one of the possible designs of the first aspect or to perform the method of the second aspect or any one of the possible designs of the second aspect. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface. When the apparatus is a network device or a terminal device, the communication interface may be a transceiver or an input/output interface; when the apparatus is a chip contained in a network device or a chip contained in a terminal device, the communication interface may be an input/output interface of the chip. Alternatively, the transceiver may be a transceiver circuit and the input/output interface may be an input/output circuit.

In a fourth aspect, embodiments of the present application provide a chip system, including: a processor coupled to a memory for storing a program or instructions that when executed by the processor cause the chip system to implement the method of the first aspect or any of the possible designs of the first aspect or implement the method of the second aspect or any of the possible designs of the second aspect.

Optionally, the system on a chip further comprises an interface circuit for interacting code instructions to the processor.

Alternatively, the processor in the chip system may be one or more, and the processor may be implemented by hardware or software. When implemented in hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general purpose processor, implemented by reading software code stored in a memory.

Alternatively, the memory in the system-on-chip may be one or more. The memory may be integral to the processor or separate from the processor. For example, the memory may be a non-transitory processor, such as a read only memory ROM, which may be integrated on the same chip as the processor or may be separately provided on different chips.

In a fifth aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon a computer program or instructions that, when executed, cause a computer to perform the method of the first aspect or any of the possible designs of the first aspect or perform the method of the second aspect or any of the possible designs of the second aspect.

In a sixth aspect, embodiments of the present application provide a computer program product which, when read and executed by a computer, causes the computer to perform the method of the first aspect or any of the possible designs of the first aspect, or to perform the method of the second aspect or any of the possible designs of the second aspect, as described above.

In a seventh aspect, embodiments of the present application provide a communication system that includes a network device and at least one terminal device. Optionally, the communication system may further include a core network device.

Drawings

Fig. 1 is a schematic diagram of a network architecture of a communication system to which the embodiments of the present application are applicable;

fig. 2 is a flowchart of a method for determining an HARQ-ACK codebook according to an embodiment of the present application;

fig. 3 is a schematic diagram of DCI scheduling PDSCH and PUCCH in an embodiment of the present application;

fig. 4 and fig. 5 are schematic structural diagrams of a communication device according to an embodiment of the present application;

fig. 6 and fig. 7 are schematic structural diagrams of another communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application may be applied to various communication systems, such as a long term evolution (long term evolution, LTE) system, an LTE frequency division duplex (frequency division duplex, FDD) system, an LTE time division duplex (time division duplex, TDD), a fifth generation (5th generation,5G) mobile communication system, or a New Radio (NR) system, or to future communication systems or other similar communication systems, etc.

Please refer to fig. 1, which is a schematic diagram of a network architecture of a communication system provided in the present application. The communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (e.g., terminal device 130 and terminal device 140 in fig. 1). The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or may integrate the functions of the core network device and the logic functions of the radio access network device on the same physical device, or may integrate the functions of part of the core network device and part of the radio access network device on one physical device. The terminal device may be fixed in position or may be movable. Fig. 1 is only a schematic diagram, and other network devices may be further included in the communication system, for example, a wireless relay device and a wireless backhaul device, which are not shown in fig. 1. The number of core network devices, radio access network devices and terminal devices included in the communication system is not limited in the embodiments of the present application.

It should be understood that the radio access network devices mentioned in the embodiments of the present application may correspond to different devices in different communication systems, for example, in a 5G system to access network devices in 5G, for example, a gNB or ng-eNB, and in a 4G system to access network devices in 4G, for example, an eNB or en-gNB.

The embodiment of the application can be applied to uplink signal transmission, downlink signal transmission and device-to-device (D2D) signal transmission. For uplink signal transmission, the transmitting device is a terminal device, and the corresponding receiving device is a radio access network device. For D2D signal transmission, the transmitting device is a terminal device and the corresponding receiving device is a terminal device.

The radio access network device and the terminal device can communicate through the licensed spectrum, the unlicensed spectrum, and both the licensed spectrum and the unlicensed spectrum. The network device and the terminal device may communicate with each other through a frequency spectrum of 6 gigahertz (GHz) or less, may communicate through a frequency spectrum of 6GHz or more, and may communicate using a frequency spectrum of 6GHz or less and a frequency spectrum of 6GHz or more at the same time. The embodiment of the application does not limit the spectrum resources used between the network equipment and the terminal equipment.

It should be noted that, the network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the communication network architecture and the appearance of the new service scenario, the technical solution provided in the embodiments of the present application is equally applicable to similar technical problems.

Some of the terms in the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.

1) The terminal device in the embodiment of the application is a device with a wireless receiving and transmitting function. The terminal equipment is connected with the wireless access network equipment in a wireless mode, so that the terminal equipment is accessed into a communication system. The terminal device may also be referred to as a terminal, user Equipment (UE), mobile station, mobile terminal, etc. The terminal device may be a mobile phone, a tablet computer, a computer with a wireless transceiving function, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned operation, a wireless terminal in teleoperation, a wireless terminal in smart grid, a wireless terminal in transportation security, a wireless terminal in smart city, a wireless terminal in smart home, or the like. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the terminal equipment.

By way of example and not limitation, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device or an intelligent wearable device, and is a generic name for intelligently designing daily wear and developing wearable devices, such as glasses, gloves, watches, clothes, shoes, and the like, by applying wearable technology. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

The terminal device may also be an in-vehicle module, an in-vehicle component, an in-vehicle chip, or an in-vehicle unit built in the vehicle as one or more components or units, through which the vehicle may implement the method of the present application.

2) The radio access network device in the embodiment of the present application is a device for accessing a terminal device to a radio network device in a network. The radio access network device is a node in the radio access network, which may also be referred to as a base station, and may also be referred to as a RAN node (or device), and in this application, the radio access network device may simply be referred to as a network device, where, unless otherwise specified, the network devices hereinafter all refer to radio access network devices. The radio access network device may be a base station (base station), an evolved NodeB (eNodeB) in an LTE system or an evolved LTE system (LTE-Advanced), a next generation NodeB (gNB) in a 5G communication system, a transmission reception point (transmission reception point, TRP), a baseband unit (BBU), a WiFi Access Point (AP), a base station in a future mobile communication system, an access node in a WiFi system, or the like. The radio access network device may also be a module or unit that performs the functions of the base station part, for example, a Centralized Unit (CU), or a Distributed Unit (DU). The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the wireless access network equipment.

For example, in one network architecture, the radio access network device may be a CU node, or a DU node, or an access network device comprising a CU node and a DU node. Specifically, the CU node is configured to support protocols such as radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP), service data adaptation protocol (service data adaptation protocol, SDAP), etc.; the DU node is used to support radio link control (radio link control, RLC) layer protocols, medium access control (medium access control, MAC) layer protocols, and physical layer protocols.

It should be understood that, in the embodiments of the present application, PDSCH, physical downlink control channel (physical downlink control channel, PDCCH), physical uplink shared channel (physical uplink shared channel, PUSCH) and PUCCH are only examples of downlink data channel, downlink control channel, uplink data channel and uplink control channel of the physical layer, and the data channel and the control channel may have different names in different systems and different scenarios, and the embodiments of the present application are not limited thereto.

The wireless access network device and the terminal device in the embodiment of the application can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; the device can be deployed on the water surface; but also on aerial planes, balloons and satellites. The application scenario of the network device and the terminal device is not limited in the embodiment of the application.

It should be noted that the terms "system" and "network" in the embodiments of the present application may be used interchangeably. The term "plurality" means two or more, and in view of this, the term "plurality" may also be understood as "at least two" in the embodiments of the present application. "at least one" may be understood as one or more, for example as one, two or more. For example, including at least one means including one, two or more, and not limiting what is included. For example, at least one of A, B and C is included, then A, B, C, A and B, A and C, B and C, or A and B and C may be included. Likewise, the understanding of the description of "at least one" and the like is similar. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/", unless otherwise specified, generally indicates that the associated object is an "or" relationship.

Unless stated to the contrary, the embodiments of the present application refer to ordinal terms such as "first," "second," etc., for distinguishing between multiple objects, and are not intended to limit the order, timing, priority, or importance of the multiple objects, nor are the descriptions of "first," "second," etc., to limit the objects to be different.

In the fifth generation (5 ^th In a New Radio (NR) system of generation, 5G) mobile communication system, a network device can allow one DCI carried on PDCCH to schedule more than one codeword (code) for a terminal device by high-level parametersThe maximum number of codewords that one DCI can schedule, and then the terminal equipment reserves corresponding information bit number for each DCI in the HARQ-ACK codebook according to the maximum number of codewords. However, not all DCI formats (formats) can support scheduling more than one codeword, and if DCI which cannot support a DCI format for scheduling more than one codeword is used to schedule high-priority data, the terminal device still reserves the number of information bits for the DCI in the high-priority HARQ-ACK codebook according to the maximum number of codewords, which may result in a waste of information bits in the high-priority codebook and thus affect the performance of the high-priority HARQ-ACK codebook.

Referring to fig. 2, a flowchart of a method for determining an HARQ-ACK codebook according to an embodiment of the present application is provided, where the method includes:

step S201, the network device sends first configuration information to the terminal device, where the first configuration information indicates that one DCI schedules at most two codewords.

Accordingly, the terminal device may receive the first configuration information from the network device.

In this embodiment of the present application, the first configuration information is configured to configure a maximum number of codewords that can be scheduled by one DCI for the terminal device, where the maximum number of codewords may be 2, which indicates that each DCI can schedule at most two codewords. Alternatively, the first configuration information may be a higher-layer parameter, such as maxnrofcodewordsschedule bydci, that the network device sends to the terminal device.

The codeword may be understood as a data block obtained by a TB after a series of physical layer processes (for example, may include TB cyclic redundancy check (cyclic redundancy check, CRC) addition, code Block (CB) segmentation, CB CRC addition, channel coding, rate matching, etc.). One TB corresponds to one codeword, if one codeword is scheduled by one DCI, the DCI indicates that one TB is carried on the PDSCH scheduled by the DCI, and the terminal equipment needs to send HARQ-ACK feedback information for the one TB to the network equipment; similarly, if one DCI schedules two codewords, it means that the PDSCH scheduled by the DCI carries two TBs, and the terminal device needs to send HARQ-ACK feedback information for the two TBs to the network device.

Step S202, the network device sends first DCI to the terminal device, where the first DCI is used to schedule first data, and the first DCI indicates a high priority.

Accordingly, the terminal device may receive the first DCI from the network device.

In this embodiment of the present application, the first data is downlink data sent by the network device to the terminal device, as shown in fig. 3, where the first data is carried on a PDSCH channel, and the first data may include one or more TBs that are matched with the number of codewords scheduled by the first DCI. Alternatively, in case the first DCI indicates a high priority, a TB may be mapped to codeword 0 when the first DCI schedules one codeword; when the first DCI schedules two codewords, TB 1 may be mapped to codeword 0 and TB 2 may be mapped to codeword 1. In this way, after receiving the first data, the terminal device may send HARQ-ACK feedback information for the first data to the network device, where the HARQ-ACK feedback information may be carried on a physical uplink control channel (physical uplink control channel, PUCCH).

The first DCI indicates a high priority, and accordingly, HARQ-ACK feedback information corresponding to the first DCI needs to be fed back through a high-priority HARQ-ACK codebook (codebook). Specifically, the first DCI may indicate the high priority by an explicit manner, or may indicate the high priority by an implicit manner. Wherein, the indicating of the high priority by the explicit method may be that, when the first DCI includes a priority indication field, the first DCI may indicate the high priority by the priority indication field. For example, the priority indication field may be a flag bit occupying 1 bit in the first DCI, where the value of the flag bit is set to "1" to indicate high priority, and where the value of the flag bit is set to "0" to indicate low priority. Indicating the high priority by implicit means may be that when the priority indication field is not included in the first DCI, the high priority may be indicated by a default priority of the first DCI, i.e. the default priority of the first DCI is configured as the high priority.

Further, support for priority indication is different for different DCI formats. As an example, table 1 shows the support of priority indication by several DCI formats (formats) for scheduling PDSCH. As can be seen from table 1, DCI format 1_0 does not support priority indication, i.e., the DCI of DCI format 1_0 does not include a priority indication field, and therefore, the PDSCH scheduled by the DCI of DCI format 1_0 is low priority by default.

The DCI format 1_1 supports priority indication, i.e., the DCI of the DCI format 1_1 includes a priority indication field, which may be 1 bit, and thus, the PDSCH scheduled by the DCI format 1_1 may be high priority (e.g., data for carrying URLLC traffic) or low priority (e.g., data for carrying embbc traffic). Specifically, the scheduled PDSCH may be indicated as high priority when the priority indication field indicates high priority, and may be indicated as low priority when the priority indication field indicates low priority. Optionally, the DCI Format 1_1 supports priority indication that requires the network device to be configured by a higher layer parameter, which may be, for example, priority indicator for DCI-formats 1-1-r16.

Similarly, DCI format 1_2 also supports priority indication, i.e., DCI of DCI format 1_2 includes a priority indication field, which may be 1 bit, and thus PDSCH scheduled by DCI format 1_2 may be high priority or low priority. Specifically, the scheduled PDSCH may be indicated as high priority when the priority indication field indicates high priority, and may be indicated as low priority when the priority indication field indicates low priority. Optionally, the DCI Format 1_2 supports priority indication and also requires the network device to be configured by a higher layer parameter, which may be, for example, priority indicator for DCI-formats 1-2-r16.

TABLE 1

The first DCI in the embodiment of the present application may be a first DCI format or a second DCI format, where the first DCI format supports scheduling one codeword or two codewords, and the second DCI format only supports scheduling one codeword. Since the maximum number of codewords for scheduling supported by different DCI formats is also different, when the network device configures the maximum number of codewords that one DCI can schedule to be 2, not all DCI formats can support scheduling of two codewords. Currently, only DCI format 1_1 may support scheduling two codewords, and neither DCI format 1_0 nor DCI format 1_2 may support scheduling two codewords, but only one codeword. As can be seen, the first DCI format in the embodiment of the present application may be DCI format 1_1, and the second DCI format may be DCI format 1_2.

In one possible implementation, when the first DCI is a first DCI format, the first DCI is used to schedule one codeword, for example, by setting a value of a modulation and coding scheme (modulation and coding scheme, MCS) field in the first DCI to 26 and a value of a redundancy version (redundancy Version, RV) field to 1, it is specifically understood that the second codeword is disabled by setting the MCS corresponding to the second codeword to 26 and the RV to 1, thereby restricting the first DCI of the first DCI format to only schedule one codeword.

In step S203, the terminal device sends an HARQ-ACK codebook to the network device, where the HARQ-ACK codebook is a high-priority HARQ-ACK codebook, and the HARQ-ACK codebook includes HARQ-ACK feedback information corresponding to the first DCI, where the number of bits of the HARQ-ACK feedback information is determined according to one codeword.

Accordingly, the network device may receive the HARQ-ACK codebook from the terminal device.

Alternatively, the HARQ-ACK codebook may be carried on a PUCCH channel. It should be appreciated that the HARQ-ACK codebook may also be carried on the PUSCH channel.

In this embodiment, the number of bits of the HARQ-ACK feedback information corresponding to the first DCI is determined according to one codeword, where the number of bits of the HARQ-ACK information corresponding to the first DCI may be 1 or N, where N is the number of maximum Code Block Groups (CBGs) of each transport block, and N is a positive integer greater than 1.

In one possible implementation, if the network device configures CBGs and the maximum number of CBGs corresponding to each TB is N, the number of bits of HARQ-ACK information corresponding to the first DCI may be N. Typically, after one TB is divided by a code block, several CBs can be obtained. If the network device configures a CBG, the first DCI scheduled data transmission is represented as a CBG-based transmission, and the CBs are further divided into N CBGs, where one or more CBs may be included in one of the CBGs. In this way, HARQ-ACK information may be fed back separately for each CBG in one TB, one CBG requiring one information bit, and N CBGs requiring N information bits in total.

Alternatively, the terminal device may receive second configuration information from the network device, the second configuration information indicating a maximum CBG number N for each TB. It should be noted that the N value is configured based on the serving cell (i.e., per serving cell), if the N values are configured for a plurality of serving cells, N takes the maximum value of the N values configured for each of the plurality of serving cells for a dynamic codebook (i.e., type 2 HARQ-ACK codebook). For example, if the maximum CBG number configured by the serving cell 1 is N1 and the maximum CBG number configured by the serving cell 2 is N2, the HARQ-ACK information bit number n=max (N1, N2).

If the network device does not configure CBG, the number of bits of HARQ-ACK information corresponding to the first DCI may be 1, which indicates that the data transmission scheduled by the first DCI is TB-based data transmission, and the terminal device may feed back 1-bit HARQ-ACK information for the entire TB.

It should be noted that, for a semi-static codebook (type 1 HARQ-ACK codebook), if the terminal device does not receive DCI, the terminal device needs to feed back NACK information for the corresponding PDSCH candidate (candidate), and at this time, the number of bits of NACK is also determined according to 1 codeword.

For a dynamic codebook (Type 2 HARQ-ACK codebook), if the terminal device fails to detect DCI, the terminal device also needs to fill NACK at a corresponding position, and the filling NACK bit is also determined according to one codeword.

The semi-static codebook needs to feed back HARQ-ACK information for all PDSCH candidates, so the size of the semi-static codebook is fixed, regardless of the number of PDSCH actually scheduled. The dynamic codebook is to feed back HARQ-ACK information according to the number of PDSCH actually scheduled, and thus its size is related to the number of PDSCH or DCI actually scheduled, and thus is called a dynamic codebook.

By adopting the technical scheme, under the condition that the network equipment is configured with the maximum codeword number which can be scheduled by one DCI as 2, when the first DCI indicates high priority, the terminal equipment can still reserve information bits for the HARQ feedback information corresponding to the first DCI in the HARQ-ACK codebook with high priority according to one codeword, so that the size of the high priority HARQ-ACK codebook can be effectively limited, the transmission performance of the high priority HARQ-ACK codebook is improved, and the problem that if the first DCI does not support scheduling of two codewords, the terminal equipment reserves the information bits for the HARQ-ACK information corresponding to the first DCI in the HARQ-ACK codebook with high priority by using the two codewords, so that the information bits are wasted is avoided.

In one possible implementation manner, the terminal device may also determine, according to the DCI format detected by the configuration, the number of bits of HARQ-ACK feedback information corresponding to the first DCI. Specifically, if the network device configures only the second DCI format, the terminal device only needs to detect DCI of the second DCI format, such as DCI format 1_2. At this time, after the terminal device receives the DCI for scheduling the downlink data from the network device, the number of bits of the HARQ-ACK feedback information corresponding to the DCI may be determined directly according to one codeword. That is, the number of bits of the HARQ-ACK feedback information in the high priority HARQ-ACK codebook is determined according to one codeword, and the number of bits of the HARQ-ACK feedback information in the low priority HARQ-ACK codebook is also determined according to one codeword. Or it may be understood that, through protocol restrictions, the double codeword can be configured only when the first DCI format is configured, otherwise the double codeword cannot be configured.

If the network device configures only the first DCI format, the terminal device only needs to detect DCI of the first DCI format, such as DCI format 1_1. At this time, after receiving DCI for scheduling downlink data from the network device, the terminal device may determine the number of bits of HARQ-ACK feedback information corresponding to the DCI according to the two codewords.

If the network device configures the first DCI format and the second DCI format, the terminal device needs to detect DCI of the first DCI format and DCI of the second DCI format. At this time, after receiving the DCI for scheduling the downlink data from the network device, the terminal device may determine the number of bits of the HARQ-ACK feedback information corresponding to the DCI according to the priority indicated by the DCI, where the DCI may indicate the high priority or the low priority in an explicit manner, or may indicate the high priority or the low priority in an implicit manner, which is not limited. And determining the bit number of the HARQ-ACK feedback information corresponding to the DCI according to one code word when the DCI indicates high priority, and determining the bit number of the HARQ-ACK feedback information corresponding to the DCI according to two code words when the DCI indicates low priority.

Referring to fig. 4, a schematic structural diagram of a communication device provided in an embodiment of the present application is provided, and the communication device 400 includes: a transceiver module 410 and a processing module 420. The communication device may be used to implement the functionality relating to the terminal device in any of the method embodiments described above. For example, the communication means may be a terminal device, such as a handheld terminal device or a vehicle mounted terminal device; the communication device may also be a chip or a circuit included in the terminal device, or a device including the terminal device, such as various types of vehicles, or the like.

Illustratively, when the communication apparatus performs the operations or steps of the corresponding terminal device in the method embodiment shown in fig. 2, the transceiver module 410 is configured to receive first configuration information from the network device, where the first configuration information indicates that one DCI schedules at most two codewords; the transceiver module 410 is further configured to receive a first DCI from a network device, where the first DCI is used to schedule first data, and the first DCI indicates a high priority; a processing module 420, configured to generate an HARQ-ACK codebook, where the HARQ-ACK codebook is a high-priority HARQ-ACK codebook, and the HARQ-ACK codebook includes HARQ-ACK feedback information corresponding to the first DCI, where the number of bits of the HARQ-ACK feedback information is determined according to one codeword; the transceiver module 410 is further configured to send the HARQ-ACK codebook to a network device.

In one possible design, the processing module 420 is further configured to: and determining the bit number of the HARQ-ACK feedback information according to one codeword, wherein the bit number of the HARQ-ACK information is 1 or N, N is the maximum CBG number of each transmission block, and N is a positive integer greater than 1.

The processing module 420 involved in the communication device may be implemented by at least one processor or processor-related circuit component and the transceiver module 410 may be implemented by at least one transceiver or transceiver-related circuit component or a communication interface. The operations and/or functions of the respective modules in the communication device are not described herein for brevity, respectively, in order to implement the corresponding flow of the method shown in fig. 2. Optionally, the communication device may further include a storage module, where the storage module may be configured to store data and/or instructions, and the transceiver module 410 and/or the processing module 420 may read the data and/or instructions in the access module, so that the communication device implements a corresponding method. The memory module may be implemented, for example, by at least one memory.

The storage module, the processing module and the transceiver module may exist separately, or may be integrated in whole or in part, for example, the storage module and the processing module are integrated, or the processing module and the transceiver module are integrated, etc.

Fig. 5 is a schematic diagram of another structure of a communication device according to an embodiment of the present application. The communication device may in particular be a terminal device, which may be used to implement the functionality related to the terminal device in any of the method embodiments described above. For easy understanding and ease of illustration, in fig. 5, the terminal device is exemplified by a mobile phone. As shown in fig. 5, the terminal device includes a processor, and may further include a memory, and of course, a radio frequency circuit, an antenna, an input/output device, and the like. The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is mainly used for storing software programs and data. The radio frequency circuit is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by a user and outputting data to the user. It should be noted that some kinds of terminal apparatuses may not have an input/output device.

When data need to be sent, the processor carries out baseband processing on the data to be sent and then outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit carries out radio frequency processing on the baseband signal and then 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 a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of illustration, only one memory and processor is shown in fig. 5. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device, etc. The memory may be provided separately from the processor or may be integrated with the processor, which is not limited by the embodiments of the present application.

In the embodiment of the present application, the antenna and the radio frequency circuit with the transceiver function may be regarded as a transceiver unit of the terminal device, and the processor with the processing function may be regarded as a processing unit of the terminal device. As shown in fig. 5, the terminal device includes a transceiving unit 510 and a processing unit 520. The transceiver unit may also be referred to as a transceiver, transceiver device, etc. The processing unit may also be called a processor, a processing board, a processing module, a processing device, etc. Alternatively, the device for implementing the receiving function in the transceiver unit 510 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 510 may be regarded as a transmitting unit, that is, the transceiver unit 510 includes a receiving unit and a transmitting unit. The transceiver unit may also be referred to as a transceiver, transceiver circuitry, or the like. The receiving unit may also be referred to as a receiver, or receiving circuit, among others. The transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc. It should be understood that, the transceiver unit 510 is configured to perform the transmitting operation and the receiving operation on the terminal device side in the above method embodiment, and the processing unit 520 is configured to perform other operations on the terminal device other than the transmitting operation in the above method embodiment.

Referring to fig. 6, a schematic structural diagram of another communication device provided in the embodiment of the present application is provided, where the communication device 600 includes: a transceiver module 610 and a processing module 620. The communication means may be adapted to implement the functions relating to the network device in any of the method embodiments described above. The communication means may be, for example, a network device or a chip or a circuit comprised in a network device.

Illustratively, when the communication apparatus performs the operations or steps of the corresponding network device in the method embodiment shown in fig. 2, the transceiver module 610 is configured to send first configuration information to the terminal device, where the first configuration information indicates that one DCI schedules at most two codewords; the transceiver module 610 is further configured to send a first DCI to a terminal device, where the first DCI is used to schedule first data and the first DCI indicates a high priority; the transceiver module 610 is further configured to receive an HARQ-ACK codebook from a terminal device, where the HARQ-ACK codebook is a high-priority HARQ-ACK codebook, and the HARQ-ACK codebook includes HARQ-ACK feedback information corresponding to the first DCI; a processing module 620, configured to determine the number of bits of the HARQ-ACK feedback information according to one codeword.

In one possible design, the processing module 620 is specifically configured to: and determining the bit number of the HARQ-ACK information to be 1 or N, wherein N is the maximum CBG number of each transmission block, and N is a positive integer greater than 1.

It should be appreciated that the processing module 620 involved in the communication device may be implemented by at least one processor or processor-related circuit component and the transceiver module 610 may be implemented by at least one transceiver or transceiver-related circuit component or communication interface. The operations and/or functions of the respective modules in the communication device are not described herein for brevity, respectively, in order to implement the corresponding flow of the method shown in fig. 2. Optionally, the communication device may further include a storage module, where the storage module may be configured to store data and/or instructions, and the transceiver module 610 and/or the processing module 620 may read the data and/or instructions in the access module, so that the communication device implements a corresponding method. The memory module may be implemented, for example, by at least one memory.

Fig. 7 is a schematic diagram of another structure of a communication device according to an embodiment of the present application. The communication means may in particular be a network device, e.g. a base station, for implementing the functionality of any of the above method embodiments involving a network device, e.g. the first network device or the target network device.

The network device includes: one or more radio frequency units, such as a remote radio frequency unit (remote radio unit, RRU) 701 and one or more baseband units (BBU) 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 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals and baseband signals. The BBU702 is mainly used for baseband processing, control of a base station, and the like. The RRU 701 and BBU702 may be physically located together or may be physically separate, i.e. distributed base stations.

The BBU702 is a control center of a base station, and may also be referred to as a processing unit, and is mainly configured to perform baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and so on. For example, the BBU702 may be configured to control a base station to perform the operational procedures described above with respect to the network device in the method embodiments.

In one example, the BBU 702 may be configured by one or more single boards, where the multiple single boards may support a single access indicated radio access network (such as an LTE network), or may support radio access networks of different access schemes (such as an LTE network, a 5G network, or other networks). The BBU 702 can also include a memory 7021 and a processor 7022, the memory 7021 being configured to store necessary instructions and data. The processor 7022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the transmitting operation in the above-described method embodiment. The memory 7021 and processor 7022 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits.

The embodiment of the application also provides a chip system, which comprises: and a processor coupled to the memory, the memory for storing a program or instructions that, when executed by the processor, cause the chip system to implement the method of the corresponding terminal device or the method of the corresponding network device in any of the method embodiments described above.

Alternatively, the processor in the system-on-chip may be one or more. The processor may be implemented in hardware or in software. When implemented in hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general purpose processor, implemented by reading software code stored in a memory.

Alternatively, the memory in the system-on-chip may be one or more. The memory may be integral with the processor or separate from the processor, and is not limited in this application. For example, the memory may be a non-transitory processor, such as a ROM, which may be integrated on the same chip as the processor, or may be separately provided on different chips, and the type of memory and the manner of providing the memory and the processor are not specifically limited in this application.

The system-on-chip may be, for example, a field programmable gate array (field programmable gate array, FPGA), an application specific integrated chip (application specific integrated circuit, ASIC), a system on chip (SoC), a central processing unit (central processor unit, CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), a microcontroller (micro controller unit, MCU), a programmable controller (programmable logic device, PLD) or other integrated chip.

It should be understood that the steps in the above-described method embodiments may be accomplished by integrated logic circuitry in hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor or in a combination of hardware and software modules in a processor.

Embodiments of the present application also provide a computer-readable storage medium having stored therein computer-readable instructions, which when read and executed by a computer, cause the computer to perform the method of any of the method embodiments described above.

The present application also provides a computer program product which, when read and executed by a computer, causes the computer to perform the method of any of the method embodiments described above.

The embodiment of the application also provides a communication system which comprises network equipment and at least one terminal equipment, and optionally, the communication system can also comprise core network equipment.

It is to be appreciated that the processors referred to in the embodiments of the present application may be CPUs, but may also be other general purpose processors, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory referred to in the embodiments of the present application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile 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. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM).

Note that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, the memory (storage module) is integrated into the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that, the various numbers related to the various embodiments of the present application are merely for convenience of description, and the size of the sequence numbers of the above-mentioned processes or steps does not mean that the execution sequence of the processes or steps should be determined by the functions and inherent logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

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 solution. 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 will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The 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 may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

In the various embodiments of the application, if there is no specific description or logical conflict, terms and/or descriptions between the various embodiments are consistent and may reference each other, and features of the various embodiments may be combined to form new embodiments according to their inherent logical relationships.

Claims

A method of determining a HARQ-ACK codebook, the method comprising:

receiving first configuration information from network equipment, wherein the first configuration information indicates that one downlink control information DCI is scheduled to at most two code words;

receiving first DCI from the network device, the first DCI being used to schedule first data, and the first DCI indicating a high priority;

and sending a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook to the network equipment, wherein the HARQ-ACK codebook is a high-priority HARQ-ACK codebook, the HARQ-ACK codebook comprises HARQ-ACK feedback information corresponding to the first DCI, and the bit number of the HARQ-ACK feedback information is determined according to one codeword.
The method of claim 1, wherein the number of bits of the HARQ-ACK feedback information is determined according to one codeword, comprising:

the bit number of the HARQ-ACK information is 1 or N, wherein N is the maximum coding block group CBG number of each transmission block, and N is a positive integer greater than 1.
The method of claim 1 or 2, wherein the first DCI indicates a high priority, comprising:

the first DCI comprises a priority indication field, and the priority indication field indicates high priority; or, the default priority of the first DCI is a high priority.
The method of any of claims 1-3, wherein the format of the first DCI is a first DCI format or a second DCI format, wherein the first DCI format supports scheduling one codeword or two codewords and the second DCI format supports scheduling only one codeword.
The method of claim 4, wherein the first DCI schedules only one codeword when the first DCI is the first DCI format.
A method of determining a HARQ-ACK codebook, the method comprising:

transmitting first configuration information to terminal equipment, wherein the first configuration information indicates one downlink control information DCI to schedule at most two codewords;

transmitting first DCI to the terminal equipment, wherein the first DCI is used for scheduling first data, and the first DCI indicates high priority;

and receiving a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook from the terminal equipment, wherein the HARQ-ACK codebook is a high-priority HARQ-ACK codebook, the HARQ-ACK codebook comprises HARQ-ACK feedback information corresponding to the first DCI, and the bit number of the HARQ-ACK feedback information is determined according to one codeword.
The method of claim 6 wherein the number of bits of the HARQ-ACK feedback information is determined from one codeword, comprising:

The bit number of the HARQ-ACK information is 1 or N, wherein N is the maximum coding block group CBG number of each transmission block, and N is a positive integer greater than 1.
The method of claim 6 or 7, wherein the first DCI indicates a high priority, comprising:

the first DCI comprises a priority indication field, and the priority indication field indicates high priority; or, the default priority of the first DCI is a high priority.
The method of any of claims 6-8, wherein the format of the first DCI is a first DCI format or a second DCI format, wherein the first DCI format supports scheduling one codeword or two codewords and the second DCI format supports scheduling only one codeword.
The method of claim 9, wherein the first DCI schedules only one codeword when the first DCI is the first DCI format.
A communication device, the device comprising:

a transceiver module, configured to receive first configuration information from a network device, where the first configuration information indicates that one downlink control information DCI is scheduled to at most two codewords;

the transceiver module is further configured to receive a first DCI from the network device, where the first DCI is used to schedule first data, and the first DCI indicates a high priority;

The processing module is used for generating a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook, wherein the HARQ-ACK codebook is a high-priority HARQ-ACK codebook, the HARQ-ACK codebook comprises HARQ-ACK feedback information corresponding to the first DCI, and the bit number of the HARQ-ACK feedback information is determined according to one codeword;

the transceiver module is further configured to send the HARQ-ACK codebook to the network device.
The apparatus of claim 11, wherein the processing module is further configured to:

and determining the bit number of the HARQ-ACK feedback information according to one codeword, wherein the bit number of the HARQ-ACK information is 1 or N, N is the maximum coding block group CBG number of each transmission block, and N is a positive integer greater than 1.
The apparatus of claim 11 or 12, wherein the first DCI indicates a high priority, comprising:

the first DCI comprises a priority indication field, and the priority indication field indicates high priority; or, the default priority of the first DCI is a high priority.
The apparatus of any of claims 11-13, wherein the format of the first DCI is a first DCI format or a second DCI format, wherein the first DCI format supports scheduling one codeword or two codewords and the second DCI format supports scheduling only one codeword.
The apparatus of claim 14, wherein the first DCI schedules only one codeword when the first DCI is the first DCI format.
A communication device, the device comprising:

a transceiver module, configured to send first configuration information to a terminal device, where the first configuration information indicates that one piece of downlink control information DCI is scheduled to at most two codewords;

the transceiver module is further configured to send first DCI to the terminal device, where the first DCI is used to schedule first data, and the first DCI indicates a high priority;

the receiving and transmitting module is further configured to receive a HARQ-ACK codebook from a terminal device, where the HARQ-ACK codebook is a high-priority HARQ-ACK codebook, and the HARQ-ACK codebook includes HARQ-ACK feedback information corresponding to the first DCI;

and the processing module is used for determining the bit number of the HARQ-ACK feedback information according to one code word.
The apparatus of claim 16, wherein the processing module is specifically configured to:

and determining the bit number of the HARQ-ACK information to be 1 or N, wherein N is the maximum coding block group CBG number of each transmission block, and N is a positive integer greater than 1.
The apparatus of claim 16 or 17, wherein the first DCI indicates a high priority, comprising:

the first DCI comprises a priority indication field, and the priority indication field indicates high priority; or, the default priority of the first DCI is a high priority.
The apparatus of any of claims 16-18, wherein the format of the first DCI is a first DCI format or a second DCI format, wherein the first DCI format supports scheduling one codeword or two codewords and the second DCI format supports scheduling only one codeword.
The apparatus of claim 19, wherein the first DCI schedules only one codeword when the first DCI is the first DCI format.
A communication apparatus, the apparatus comprising at least one processor coupled with at least one memory:

the at least one processor configured to execute a computer program or instructions stored in the at least one memory to cause the apparatus to perform the method of any one of claims 1 to 5 or to cause the apparatus to perform the method of any one of claims 6 to 10.
A computer readable storage medium storing instructions which, when executed, cause the method of any one of claims 1 to 5 to be implemented or cause the method of any one of claims 6 to 10 to be implemented.
A communication device comprising a processor and an interface circuit;

the interface circuit is used for interacting code instructions or data with the processor;

the processor is for performing the method of any one of claims 1 to 5 or the processor is for performing the method of any one of claims 6 to 10.
A computer program, characterized in that it, when executed, causes the method of any one of claims 1 to 5 to be implemented, or causes the method of any one of claims 6 to 10 to be implemented.