CN118140516A

CN118140516A - Method for determining resource allocation indication domain, terminal equipment and network equipment

Info

Publication number: CN118140516A
Application number: CN202180103829.2A
Authority: CN
Inventors: 张轶; 徐婧; 林亚男; 梁彬
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2024-06-04
Also published as: WO2023123381A1

Abstract

A method for determining a resource allocation indication domain, a terminal device and a network device. The method comprises the following steps: the method comprises the steps that a terminal device receives Downlink Control Information (DCI) sent by a network device, wherein the DCI is used for scheduling N channels, the N channels are located in M service cells or service cell groups, N, M is a positive integer, and M is smaller than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; and the bit number corresponding to the resource allocation indication domain is a first bit number. The resource allocation indication field contained in the downlink control information DCI is adopted to indicate the resources of the channels positioned in one or more service cells and/or service cell groups, so that one DCI can be adopted to schedule the channels of one or more service cells configured by the network equipment for the terminal equipment, signaling overhead is reduced, and DCI utilization rate is improved.

Description

Method for determining resource allocation indication domain, terminal equipment and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method for determining a resource allocation indication domain, a terminal device, and a network device.

Background

In an NR (New Radio) wireless access system, both uplink transmission and downlink transmission support two frequency domain resource allocation types: type 0 frequency domain resource allocation and Type 1 frequency domain resource allocation. The network side configures the frequency domain resource allocation type used by the terminal device through higher layer parameters (such as resourceAllocation), such as: type 0 frequency domain resource allocation, type 1 frequency domain resource allocation, or dynamic switching. When configured as dynamic handover, the network side indicates the type of frequency domain resource allocation used by the terminal device through FDRA (Frequency domain resource assignment, frequency domain resource allocation indication field) in DCI (Downlink Control Information ).

If no BWP (Bandwidth Part) indication field is configured in the DCI for scheduling or the terminal device does not support the DCI-based BWP change, an RB (Resource Block) index corresponding to the frequency domain Resource allocation type is determined in the active BWP corresponding to the terminal device. If the terminal device supports a DCI-based BWP change and a BWP indication field is configured in the DCI for scheduling, a resource block RB index corresponding to the frequency domain resource allocation type is determined based on the BWP indicated by the BWP indication field in the DCI. Therefore, the terminal device needs to determine BWP through PDCCH (Physical Downlink Control Channel ) detection first, and then determine the frequency domain resource allocation in BWP.

And the NR system supports the terminal device to perform PDCCH blind detection in SSS (SEARCH SPACE SETS, search space set) configured on the network side. The "blind detection" is so called because the terminal device does not know information such as the DCI format before detecting the DCI carried by the PDCCH. Therefore, the terminal device needs to blindly detect the candidate PDCCHs in the search space set using some fixed DCI size. In order to reduce the complexity of blind detection of the PDCCH by the terminal device, NR specifies that after the step of aligning (DCI size alignment) the DCI sizes defined by the protocol is performed, the terminal device does not expect a total DCI size greater than 4 and a total DCI size of C-RNTI (Cell-Radio Network Temporary Identifier, cell radio network temporary identity) scrambling is greater than 3.

Since the terminal device only tries to detect the PDCCH using some fixed DCI sizes, it is required to know what the DCI sizes of different DCI formats are before the PDCCH is blindly detected. That is, the terminal device needs to know how many bits are included in each information field included in the DCI, such as FDRA fields (Frequency domain resource assignment, frequency domain resource allocation) indication fields, before PDCCH blind detection.

Disclosure of Invention

The invention provides a method for determining a resource allocation indication domain, terminal equipment and network equipment.

The invention provides the following technical scheme:

A method of determining a resource allocation indication field, comprising: the method comprises the steps that a terminal device receives Downlink Control Information (DCI) sent by a network device, wherein the DCI is used for scheduling N channels, the N channels are located in M service cells or service cell groups, N, M is a positive integer, and M is smaller than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; the resource allocation indication field contains a first number of bits.

A method for determining a resource allocation indication field, which specifically comprises: the network equipment sends Downlink Control Information (DCI) to the terminal equipment for receiving, wherein the DCI is used for scheduling N channels, the N channels are positioned in M service cells or service cell groups, N, M is a positive integer, and M is smaller than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; the resource allocation indication field contains a first number of bits.

A terminal device for determining a resource allocation indication field, comprising: a receiving unit, configured to receive downlink control information DCI sent by a network device, where the DCI is used to schedule N channels, where the N channels are located in M service cells or service cell groups, N, M is a positive integer, and M is less than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; the resource allocation indication field contains a first number of bits.

A network device for determining a resource allocation indication field, comprising: a sending unit, configured to send downlink control information DCI, where the DCI is used to schedule N channels, where the N channels are located in M service cells or service cell groups, N, M is a positive integer, and M is less than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; the resource allocation indication field contains a first number of bits.

A terminal device, comprising: a processor and a memory; the processor invokes the program in the memory to execute the method for determining the resource allocation indication domain in the terminal device provided by any embodiment of the present application.

A network device, comprising: a processor and a memory; the processor invokes the program in the memory to execute the method for determining the resource allocation indication domain in the network device provided by any embodiment of the present application.

A chip, comprising: and the processor is used for calling and running the computer program from the memory, and the device provided with the chip executes the method for determining the resource allocation indication domain in the terminal device provided by any embodiment of the application or executes the method for determining the resource allocation indication domain in the network device provided by any embodiment of the application.

A computer-readable storage medium having stored thereon a program of a method of determining a resource allocation indication domain, the program of the method of determining a resource allocation indication domain being executed by a processor to perform the method of determining a resource allocation indication domain in a terminal device provided by any embodiment of the present application or to perform the method of determining a resource allocation indication domain in a network device provided by any embodiment of the present application.

A computer program product stored on a non-transitory computer readable storage medium, the computer program being configured to perform the method for determining a resource allocation indication field in a terminal device provided by any embodiment of the present application, or to perform the method for determining a resource allocation indication field in a network device provided by any embodiment of the present application.

A computer program to be executed with the method for determining a resource allocation indication field in a terminal device according to any embodiment of the present application or with the method for determining a resource allocation indication field in a network device according to any embodiment of the present application.

The application has the beneficial effects that: the application adopts the resource allocation indication field contained in the downlink control information DCI to indicate the resources of the channels positioned in one or more service cells and/or service cell groups, thereby adopting one DCI to schedule the channels of one or more service cells configured by the network equipment for the terminal equipment, reducing signaling overhead and improving DCI utilization rate.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applied.

Fig. 2 is a flowchart illustrating a method for determining a resource allocation indication field according to an embodiment of the present application.

Fig. 3 is a specific example of a serving cell or a serving cell group in the first embodiment of the present application.

Fig. 4 is another flow chart of a method for determining a resource allocation indication field according to an embodiment of the present application.

Fig. 5 is a schematic block diagram of a terminal device according to a second embodiment of the present application.

Fig. 6 is another schematic block diagram of a terminal device according to a second embodiment of the present application.

Fig. 7 is a schematic block diagram of a network device according to a third embodiment of the present application.

Fig. 8 is a schematic structural diagram of an apparatus according to a fourth embodiment of the present application.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and embodiments, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be understood that the terms "system" or "network" are often used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general Packet Radio Service (GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum on unlicensed spectrum, NR-based access to unlicensed spectrum on unlicensed spectrum, NR-U system, universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (WIRELESS FIDELITY, WIFI), next generation communication system or other communication system, etc.

Generally, the number of connections supported by the conventional Communication system is limited and easy to implement, however, as the Communication technology advances, the mobile Communication system will support not only conventional Communication but also, for example, device-to-Device (D2D) Communication, machine-to-machine (Machine to Machine, M2M) Communication, machine type Communication (MACHINE TYPE Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) Communication, and the like, and the embodiments of the present application can also be applied to these Communication systems.

The communication system in the embodiment of the application can be applied to a carrier aggregation (Carrier Aggregation, CA) scene, a dual-connection (Dual Connectivity, DC) scene and an independent (Standalone, SA) network deployment scene.

The frequency spectrum of the application of the embodiment of the application is not limited. For example, the embodiment of the application can be applied to licensed spectrum and unlicensed spectrum.

In the embodiment of the application, the concepts of the serving cell (SERVING CELL) and the carrier (carrier) are the same and can be replaced with each other.

In embodiments of the present application, a cell Group (cell Group) is not limited to the proprietary concepts of a primary cell Group (MASTER CELL Group, MCG) and a secondary cell Group (Secondary Cell Group, SCG) in NR, and may refer broadly to a cell Group that includes at least one serving cell.

Referring to fig. 1, a wireless communication system 100 to which embodiments of the present application are applied is shown. The wireless communication system 100 includes: a network device 110, and at least one user device 120 located within the coverage area of the network device 110. The network device 110 sends a trigger signaling or DCI to the user device 120, and the user device 120 sends ACK/NACK feedback information to the network device according to the trigger signaling or DCI.

The wireless communication system 100 may include a plurality of network devices and may include other numbers of user devices within the coverage area of each network device, as the embodiments of the present application are not limited in this regard.

Wherein the network device 110 may provide communication coverage for a particular geographic area and may communicate with user equipment (e.g., UEs) located within the coverage area. The network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

The user device 120 may be mobile or stationary. The User Equipment 120 may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user Equipment, terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a user device in a 5G network or a user device in a future evolved PLMN, etc.

The following embodiments of the present application will be described in detail, how a terminal device determines resources of one or more serving cells and/or serving cell groups during a DCI scheduling process, and further how the terminal device determines the number of bits required for a resource allocation indication field when PDCCH is blindly detected. Especially in the case where one DCI schedules channels of a plurality of serving cells and/or groups of serving cells, since the number of the plurality of serving cells and/or groups of serving cells to be scheduled is not determined, the size of the active BWP (i.e., the number of physical resource blocks PRBs contained in the active BWP) or the size of the active BWP group on different serving cells is also not the same. Therefore, how to determine or use the resource allocation indication field (including the frequency domain resource allocation indication field and the time domain resource allocation indication field) in DCI when one DCI schedules channels of a plurality of serving cells and/or a group of serving cells is a problem to be solved.

In the following embodiments of the present application, FDRA (Frequency domain resource assignment, frequency domain resource allocation) indication fields in DCI are taken as examples, which illustrate how a terminal device determines the size of FDRA fields in DCI in the case that one DCI schedules multiple serving cells and/or groups of serving cells, but the method and apparatus of the present application are not limited to determining the size of FDRA fields, and indication fields related to BWP size, higher layer configuration parameters in DCI, such as TDRA (Time domain resource assignment, time domain resource allocation indication fields), etc. are applicable. The resources in embodiments of the present application may comprise time domain resources or frequency domain resources. It should be noted that, the Type 0 frequency domain Resource allocation Type supported by NR has a granularity of RBG (Resource Block Group ), where RBG is a combination of a series of consecutive virtual RBs (Resource Block), and the number of virtual RBs included in each RBG is determined according to the Size of BWP and RRC (Radio Resource Control ) signaling configuration parameters RBG-Size. The Type 1 resource allocation Type supported by NR may indicate a series of consecutive virtual RBs to the terminal, and the allocated starting RB (RBstart) and number of RBs (LRBs) are jointly encoded with one RIV (resource indication value, resource indicator value).

When the terminal device performs PDCCH blind detection, it needs to know what number of bits is included in each information field included in the DCI, and for example, the FDRA field is used to determine the number of bits as follows:

If only the type 0 frequency domain resource allocation type is configured, the indication domain contains N _RBG bits; wherein N _RBG is the total RBG number contained in one BWP; for activating the number of RBs contained in BWP, the formula is described using downlink BWP as an example, and it is understood that the formula can be applied to the number of RBs contained in uplink BWP.

If only the type 1 frequency domain resource allocation type is configured, the indication domain containsBits;

If both type 0 and type 1 are configured, the indication field contains:

Bits, wherein the most significant bit is used to indicate a resource allocation type used by the terminal, 0 represents type 0, and 1 represents type 1.

Embodiment one

Referring to fig. 2, a method for determining a resource allocation indication field according to an embodiment of the present application includes:

Step S210, a terminal device receives downlink control information DCI sent by a network device, wherein the DCI is used for scheduling N channels, the N channels are positioned in M service cells or service cell groups, N, M is a positive integer, and M is less than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; the resource allocation indication field contains a first number of bits. The channel may be a Physical downlink shared channel PDSCH (Physical Downlink SHARED CHANNEL) or a Physical Uplink shared channel PUSCH (Physical Uplink SHARED CHANNEL).

In some embodiments, the resources include frequency domain resources and/or time domain resources.

In some embodiments, M is a positive integer greater than or equal to 2, i.e., where the DCI schedules multiple serving cells and/or groups of serving cells.

In some embodiments, Q channels of the N channels are located in a same serving cell or a same serving cell group, where Q is a positive integer, and the number of bits in the resource allocation indication field corresponding to the subzone of the Q channels is a fourth number of bits.

Specifically, the first bit number or the fourth bit number is determined according to the following two schemes:

Scheme one

In some embodiments, the first number of bits is determined according to at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; and the resource scheduling granularity corresponding to the activated BWP of the first service cell. And/or, if the first serving cell corresponds to the subdomain, determining the fourth number of bits according to at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; and the resource scheduling granularity corresponding to the activated BWP of the first service cell. The first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal equipment. That is, for the fourth bit number, if the first serving cell corresponds to the subzone, the subzone may be determined according to at least one of a resource allocation type and a resource scheduling granularity corresponding to the activated BWP of the first serving cell; if the first service cell does not correspond to the subdomain, the bit number of the subdomain may not be determined according to at least one of the resource allocation type and the resource scheduling granularity corresponding to the activated BWP of the first service cell.

In other words, the terminal device detects the DCI for the first serving cell. In another alternative, the network device configures the DCI for a set of search spaces of a first serving cell. In another embodiment, the candidate PDCCH (PDCCH candidate) in which the DCI is located is determined according to the first serving cell. It can be seen that the first serving cell is a scheduled cell (scheduling cell) and not a scheduling cell (scheduling cell).

The detection mentioned in the embodiments of the present application may also include monitoring.

In some embodiments, the first bit number or the fourth bit number may be determined by the terminal device according to at least one of a size of an active BWP of the first serving cell, a resource allocation type corresponding to the active BWP of the first serving cell, and a resource scheduling granularity.

In other words, in the first aspect, the first serving cell corresponding to the first number of bits is a serving cell in which the terminal device detects the PDCCH among all serving cells corresponding to FDRA domains. The first serving cell corresponding to the fourth bit is a serving cell in which the terminal device detects a PDCCH among all serving cells corresponding to the subzone.

In general, the implementation process of the first scheme is relatively simple, and the multiplexing prior art can be maximized, but since the DCI sizes of the terminal equipment when detecting DCI in different scheduled cells are different, DCI for scheduling N cells can only be detected in one of the cells, the PDCCH location is inflexible, and PDCCH blocking (PDCCH blockage) is more easily caused.

For example: referring to fig. 3, a specific example of a serving cell or a serving cell group in the first embodiment of the present application is shown. The network device configures 4 service cells (cell 1-cell 4) for the terminal device through higher layer signaling. The scheduling relationship between the serving cells configured for the terminal device by the higher layer signaling and the serving cells belonging to the same cell group (for example, all belonging to MCG, or all belonging to primary PUCCH group or secondary cell group) is shown in fig. 3: cell 1-cell 4 may each be scheduled alone, cell 1 may be scheduled with cell 2 or cell 3, and cell 2 may be scheduled with cell 3 or cell 1. The number of PRBs contained in each of cells 1 to 4 is 50PRB,100PRB,30PRB,200PRB (numbering starts from rb=0), and each of cells 1 to 4 is configured to use type-0 resource allocation type, and RBG Size is configured as configuration 2 (RRC configuration parameter RBG-Size). Therefore, RBG sizes used in cells 1 to 4 are 8RPB, 16PRB, 4PRB, and 16PRB, respectively. Further, the number of bits required for individual scheduling of cells 1 to 4 is respectively

In one embodiment, if the first serving cell is cell 1, that is, the terminal detects the PDCCH for cell 1, the first bit number corresponding to FDRA fields in the DCI is determined according to the Size of the active BWP on cell 1, the resource allocation type resourceAllocation corresponding to the active BWP on cell 1, and the resource scheduling granularity rbg-Size, that is, 7 bits. If the first serving cell is cell 4, that is, the terminal detects the PDCCH for cell 4, the first bit number corresponding to FDRA fields in the DCI is determined according to the Size of the activated BWP on cell 4 and resourceAllocation, rbg-Size corresponding to the activated BWP on cell 4, that is, 13 bits.

Or if the cell 1 and the cell 2 are one sub-cell group in the same cellgroup, the cell 3 and the cell 4 are the same cellgroup and are another sub-cell group, the cell group where the Q channels are located is the first cell 1 and the second cell 2 (i.e. in the one sub-cell group), and the fourth bit number of the sub-domain corresponding to the Q channels in the FDRA domain is also determined according to the activated BWP Size on the first cell 1, the corresponding resource allocation type resourceAllocation, and the resource scheduling granularity rbg-Size, that is, 7 bits.

Scheme II

In some embodiments, the first number of bits is determined from a maximum or minimum of at least one second number of bits; and/or, the fourth number of bits is determined according to a maximum value or a minimum value of the at least one second number of bits corresponding to the subfield. Wherein the second number of bits is a number of bits required for channel resource allocation of each serving cell in the first type of serving cells.

The number of bits required for channel resource allocation of the serving cell and/or the serving cell group mentioned in the present application refers to the number of bits in an indication field required for channel indication resources of the serving cell and/or the serving cell group. The number of bits required for allocation of channel resources for a serving cell and/or group of serving cells may also be expressed as the number of bits required for allocation of resources for a channel for a serving cell and/or group of serving cells.

In some embodiments, each of the second numbers of bits is determined according to at least one of a Size of an active BWP of each of the first type of serving cells, a resource allocation type resourceAllocation parameter corresponding to the active BWP of the second serving cell, and a resource scheduling granularity rbg-Size.

Specifically, the first type of serving cells may have the following ranges:

range 1: the first type of serving cell includes all serving cells configured by the network device to the terminal device through higher layer signaling.

In some embodiments, the first type of serving cell corresponding to the first number of bits includes all serving cells configured by the network device to the terminal device through higher layer signaling; the first type of service cells corresponding to the fourth bit number comprise service cells corresponding to the subdomains in all service cells configured by the network equipment through higher layer signaling.

In the range 1, the maximum value or the minimum value in the second bit number is selected as the first bit number or the fourth bit number in all the service cells configured by the network device, and the scheme is simple, but the DCI size is also maximum or minimum, so the resource utilization is relatively low.

Range 2: the first type of serving cell includes all serving cells in the first group of serving cells configured by the network device or agreed upon by the protocol.

In some embodiments, the first type of serving cell corresponding to the first number of bits includes all serving cells in the first group of serving cells; the first type of service cells corresponding to the fourth bit number comprise all service cells corresponding to the subdomains in a first service cell group which is configured or agreed by the network equipment and is given to the terminal equipment by a protocol.

In some embodiments, the first service cell group includes a first service cell, or the first service cell group is a service cell group corresponding to the first service cell, where the first service cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal device. The serving cell group corresponding to the first serving cell means that a certain corresponding relationship exists between the serving cell group and the first serving cell, and the corresponding relationship may be configured by a network or may be agreed by a protocol, for example: the correspondence is a group of serving cells that can be scheduled by the same DCI as the first serving cell.

In some embodiments, the first service cell group includes, but is not limited to, a primary cell group (MASTER CELL groups, MCG), a secondary cell group (Secondary cell group, SCG), a PUCCH group (PUCCH group), which may also refer broadly to any combination of service cells.

In range 2, the implementation is more complex than in range 1, but the DCI size is smaller and thus the resource utilization is relatively high.

Range 3: the first type of serving cell includes a first serving cell and a second type of serving cell.

In some embodiments, the first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal device, and a channel of each serving cell in the second class of serving cells and a channel of the first serving cell may be scheduled by the same downlink control information DCI. For the fourth number of bits, if the cells included in the first type of serving cell correspond to the sub-domain, for example, the first serving cell corresponds to the sub-domain, the fourth number of bits may determine the number of bits according to the serving cell corresponding to the sub-domain.

In range 3, the implementation is most complex, but the DCI size is the smallest and the resource utilization is the highest, compared to the implementations in range 1 and range 2 described above.

In general, the second scheme determines the first bit number or the fourth bit number according to the maximum value or the minimum value of the required frequency domain resource allocation bit numbers, so that the resource allocation is flexible, and for different scheduled cells, the DCI for scheduling N cells is the same regardless of which cell is detected, that is, the DCI size may be detected, and when the network device (such as a base station) sends the DCI, the candidate PDCCH (PDCCH candidate) is flexible in some embodiments.

For example, please continue to refer to fig. 3, the second scheme is illustrated. The configuration, the scheduling relation, the resource allocation type, the number of PRBs contained in the activated BWP of the serving cell, and the RBG size of the serving cell at the network side are consistent with those of the first example of the above scheme. If the first serving cell is cell 1, that is, if the terminal detects the PDCCH for cell 1, the first bit number corresponding to the FDRA field or the fourth bit number corresponding to the subfield of the FDRA field is:

For range 1: the first type of service cells comprise that all service cells configured by the network equipment through high-layer signaling are cell 1-cell 4, and second bit numbers corresponding to cell 1-cell 4 are 7, 8 and 13 respectively, wherein the first bit number is the maximum 13 bits or the minimum 7 bits. If the Q channels are located in the cell 3, the first type serving cell corresponding to the fourth bit number is cell 3, i.e., the fourth bit number is 8.

For range 2: the cells 1 to 4 belong to the same cell group, so that the first type service cell also comprises the cells 1 to 4, and the second bit numbers corresponding to the cells 1 to 4 are 7, 8 and 13 respectively, and the first bit number is 13 bits of the maximum value or 7 bits of the minimum value. If the Q channels are located in the cell 3, the second serving cell corresponding to the fourth bit number is cell 3, i.e., the fourth bit number is 8.

For range 3: if the first serving cell is cell 1. The first type of serving cell includes a first serving cell 1, and serving cells cell 2 and cell 3 that can be scheduled simultaneously with the first serving cell 1, i.e., all cells cell 1 to cell 3 included in the oval frame 1. The second bit numbers corresponding to cell 1 to cell 3 are 7, 7 and 8, respectively. The first number of bits is the maximum 8 bits, or the minimum 7 bits, thereof. If the first serving cell is cell 3, the cells in the oval frame 2, that is, the first serving cell 3 and the cells cell 1 and cell 2 that can be scheduled simultaneously with the cell 3, need to be considered.

It is also assumed that the first serving cell is cell 1. If the Q channels are located in the same serving cell group, and the serving cell group includes cell1 and cell 2, the first serving cell corresponding to the fourth bit number includes cell1 and cell 2, and the maximum value is taken to be 7 bits, that is, the fourth bit number is7 bits at this time. Assuming that the service cell group includes cell 3 and cell 4, the first type of service cell corresponding to the fourth bit number includes cell1 and cell 3, and the maximum bit number 8 is taken as the fourth bit number.

In the method for determining the resource allocation indication domain provided in the first embodiment of the present application, the resource allocation indication domain needs to be interpreted. The FDRA field is used to indicate the resources of N channels, or the subzone is used to indicate the resources of Q channels. The end device interprets the FDRA domain or subdomain according to at least one of: the Size of the active BWP of the serving cell where each channel is located, the resource allocation type resourceAllocatio corresponding to the active BWP, the resource allocation granularity rbg-Size corresponding to the active BWP, the number of bits of the FDRA domain or subdomain, and the value of the FDRA domain or subdomain. Specifically, the method comprises the following two interpretation modes:

Interpretation scheme 1:

In some embodiments, referring still to fig. 2, the method further comprises: s220, in the case that the first bit number or the fourth bit number is smaller than the bit number required for channel resource allocation, the terminal device adds a first value in the resource allocation indication field or subfield. The method specifically comprises the following steps:

Adding a first value in front of the resource allocation indication field by the terminal device when the first bit number is smaller than a third bit number, wherein the first value is added to the size of the third bit number, and the third bit number is the bit number required by one channel resource allocation in the N channels; or alternatively

And in the case that the fourth bit number is smaller than a fifth bit number, the terminal device adds the first value in front of the subdomain, and the bit number of the subdomain after adding the first value reaches the size of the fifth bit number, wherein the fifth bit number is the bit number required by one channel resource allocation in the Q channels.

In some embodiments, the third number of bits is obtained by the terminal device according to at least one of a Size of an active BWP of a serving cell in which each channel is located, a resource allocation type resourceAllocatio corresponding to the active BWP, and a resource allocation granularity rbg-Size corresponding to the active BWP.

In some embodiments, the method further comprises: s230, in a case that the first bit number or the fourth bit number is greater than or equal to the bit number required for channel resource allocation, the terminal device interprets the resource allocation indication field or subdomain using the most significant bit or the least significant bit in the resource allocation indication field or subdomain. The method specifically comprises the following steps:

in the case that the first number of bits is greater than the third number of bits X, the terminal device interprets the resource allocation indication field using the lowest X bits or the highest X bits of the resource allocation indication field; wherein the third bit number X is a bit number required for allocating a channel resource in the N channels, and X is an integer; or alternatively

In the case that the fourth number of bits is greater than the fifth number of bits Y, the terminal device interprets the subfield using the lowest Y bit or the highest Y bit of the subfield; wherein the fifth number of bits Y is a number of bits required for allocation of one channel resource of the Q channels, and Y is an integer.

If the first bit number or the fourth bit number is equal to the bit number required by channel resource allocation, the lowest X of the resource allocation indication domain is located at the highest X bit and completely coincides with the highest X bit; the lowest Y bit and the highest Y bit of the subfields are completely coincident.

The resource allocation of interpretation scheme 1 is relatively flexible.

Interpretation mode 2:

in some embodiments, referring to fig. 4, the method further comprises:

S240, the terminal equipment determines a resource allocation result of a first channel according to the resource allocation indication domain, and determines resource allocation of the N channels or other channels in the Q channels according to the resource allocation result; the first channel is a channel corresponding to the first service cell, or a channel with the minimum or maximum bit number required for resource allocation in the channel of the first service cell.

The channel of each serving cell in the second type serving cell and the channel of the first serving cell may be scheduled by the same downlink control information DCI.

For example: the set of RBGs (Resource Block Group, resource block groups) or PRB (Physical Resource Block ) set of the other channels being the same as the first channel, the meaning of "same" can be understood as: RBGs and PRBs having the same offset with respect to the first RBG/PRB of the respective activated BWP; the RBG size is the same or different in the other channels and the first channel. The RBG is a resource unit for distributing service channel resources, and consists of a group of RBs (Physical Resource Block, resource blocks).

Also for example: the RBG sets and PRB sets of the other channels are determined offset from the RBG sets and PRB sets of the first channel by a certain offset.

Interpretation mode 2 is relatively simple but has relatively poor flexibility.

For example, please refer to fig. 3, for example, the interpretation mode 1 and the interpretation mode 2 are illustrated. The configuration, the scheduling relation, the resource allocation type, the number of PRBs contained in the activated BWP of the serving cell, and the RBG size of the serving cell at the network side are all consistent with those of the first and second schemes.

For interpretation mode 1:

Assuming that the first number of bits is 7 bits, the third number of bits required for channel resource scheduling of cells 1 to 4 is 7, 8, 13 bits, respectively, and the FDRA field is indicated as 1001001. Then the RBGs of the channels of cell 1 and cell 2 are interpreted as 1001001, while cell 3 is interpreted as 01001001 before the most significant bit, and cell 4 is interpreted as 00000 before the most significant bit, i.e. as 00000 1001001. Assuming that the fourth bit number is 4 bits, the subzone of FDRA fields is indicated as 1001, and assuming that two channels are located in cell 1 and cell 2 (i.e. q=2, and two channels are located in the same sub-service cell group, i.e. the sub-service cell group comprising cell 1 and cell 2), the third bit number required for scheduling the two channel resources of cell 1 and cell 2 is 7 and 7 bits respectively, then 0 needs to be added to the highest bit value of the subzone, and the result is interpreted according to 0001001, 0001001.

Assuming that the first number of bits is 13 bits, the third number of bits of cells 1 to 4 are 7,7,8,13 bits, respectively, and the FDRA field is indicated as 1001 1001 1001 1. The RBG of the channel of cell 4 is interpreted as 1001 1001 1001 1, while cells 1-3 are interpreted as the highest 7 or 8 bits, or the lowest 7 or 8 bits of 1001 1001 1001 1. Assuming that the fourth bit number is 13 bits, the subzone of FDRA field is indicated as 1001 1001 1001 1, and assuming that two channels are located in cell 1 and cell 2 (i.e., q=2, two channels are located in the same sub-service cell group, i.e., a sub-service cell group containing cell 1 and cell 2), and the third bit number required for scheduling the two channels of cell 1 and cell 2 is 7,7 bits, respectively, then the two channels of cell 1 and cell 2 are interpreted according to the highest 7 bits, or the lowest 7 bits in 1001 1001 1001 1.

For interpretation mode 2:

assuming that the DCI schedules a cell combination of cell1+cell4, where cell1 is the first serving cell, the FDRA field indicates that cell1 uses the first 5 RBGs, then cell4 is also interpreted as using the first 5 RBGs.

Assuming that one sub-field in the FDRA field schedules a cell combination of cell1+cell4, where cell1 is the first serving cell, the sub-field indicates that cell1 uses the first 5 RBGs, then cell4 is also interpreted as using the first 5 RBGs.

Second embodiment

Referring to fig. 5, a schematic block diagram of a terminal device 300 according to a third embodiment of the present application is shown. The terminal device 300 includes:

A receiving unit 310, configured to receive downlink control information DCI sent by a network device, where the DCI is used to schedule N channels, where the N channels are located in M service cells or service cell groups, N, M is a positive integer, and M is less than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; the resource allocation indication field contains a first number of bits.

In some embodiments, the first number of bits is determined according to at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; and the resource scheduling granularity corresponding to the activated BWP of the first service cell. And/or, if the first serving cell corresponds to the subdomain, determining the fourth number of bits according to at least one of: a size of an active BWP of the first serving cell corresponding to the sub-domain; a resource allocation type corresponding to the activated BWP of the first serving cell corresponding to the subzone; and resource scheduling granularity corresponding to the activated BWP of the first serving cell corresponding to the subzone. The first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal equipment.

In some embodiments, the first type of serving cell includes one of:

All service cells configured by the network equipment through high-layer signaling;

The first type of serving cells include all serving cells in a first group of serving cells configured by the network device;

All cells in the first group of cells agreed by the protocol.

In some embodiments, the first service cell group includes the first service cell, or the first service cell group is a service cell group corresponding to the first service cell, where the first service cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal device.

In some embodiments, the first type of serving cell includes a first serving cell and a second type of serving cell; the first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal device, and a channel of each serving cell in the second class of serving cells and a channel of the first serving cell can be scheduled by the same downlink control information DCI.

In some embodiments, please continue to refer to fig. 5, the terminal device further comprises: and an extension unit 320, configured to add a first value before the resource allocation indication field when the first number of bits is less than a third number of bits, where the third number of bits is a number of bits required for allocation of resources of one of the N channels, and the number of bits of the resource allocation indication field after adding the first value reaches the size of the third number of bits. And/or the extension unit 320 is further configured to add the first value before the subzone when the fourth number of bits is less than a fifth number of bits, where the fifth number of bits is a number of bits required for allocation of channel resources in the Q channels, and the number of bits of the subzone after adding the first value reaches the size of the fifth number of bits.

In some embodiments, the terminal device further comprises: an interpretation unit 330 configured to interpret the resource allocation indication field using a lowest X bit or a highest X bit of the resource allocation indication field in a case where the first number of bits is greater than the third number of bits X; wherein the third bit number X is a bit number required for allocating a channel resource in the N channels, and X is an integer; or for interpreting the subfield using the lowest Y bit or the highest Y bit of the subfield in case the fourth number of bits is greater than the fifth number of bits Y; wherein the fifth number of bits Y is a number of bits required for allocation of one channel resource of the Q channels, and Y is an integer.

In some embodiments, referring to fig. 6, the terminal device 300A further includes: a determining unit 340, configured to determine a resource allocation result of a first channel according to the resource allocation indication field or the subzone, and determine resource allocations of the N channels or the rest channels of the Q channels except the first channel according to the resource allocation result; wherein the first channel comprises: a channel corresponding to the first service cell; or the channel with the minimum or maximum bit number required by resource allocation in the channels corresponding to the first type service cells.

The terminal device may include at least one of an expansion unit 320, an interpretation unit 330, and a determination unit 340. The terminal device 300, 300A and fig. 5 and 6 provided by the present application are only for illustrating an embodiment of the present application, and are not intended to limit the present application.

In the second embodiment, please refer to the same or corresponding parts as those in the first embodiment, and the detailed description is omitted.

Embodiment III

Referring to fig. 7, a block diagram of a network device 400 according to a third embodiment of the present invention is shown. The network device 400 includes:

A sending unit 410, configured to send downlink control information DCI, where the DCI is used to schedule N channels, where the N channels are located in M service cells or service cell groups, N, M is a positive integer, and M is less than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; the resource allocation indication field contains a first number of bits.

In some embodiments, the first number of bits is determined according to at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; and the resource scheduling granularity corresponding to the activated BWP of the first service cell. And/or, if the first serving cell corresponds to the subdomain, the fourth number of bits is determined according to at least one of: a size of an active BWP of the first serving cell corresponding to the sub-domain; a resource allocation type corresponding to the activated BWP of the first serving cell corresponding to the subzone; and resource scheduling granularity corresponding to the activated BWP of the first serving cell corresponding to the subzone. The first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal equipment.

In some embodiments, the first type of serving cell includes one of:

All cells in the first group of cells agreed by the protocol.

In the third embodiment, please refer to the same or corresponding parts as those in the first embodiment, and the detailed description thereof will not be repeated.

Fourth embodiment

Referring to fig. 8, a schematic structural diagram of an apparatus 500 according to a fourth embodiment of the present invention is provided. The device 500 may be a terminal device, or a network device. The apparatus 500 includes: processor 510 and memory 520. The processor 510 and the memory 520 are communicatively coupled to each other via a bus system.

Memory 520 is a computer-readable storage medium on which is stored a program that can be run on processor 510. The processor 510 invokes a program in the memory 520 to perform the corresponding flow of any one of the methods for determining a resource allocation indication field performed by the network device provided in the above embodiment, or to perform the corresponding flow of any one of the methods for determining a resource allocation indication field performed by the terminal device provided in the above embodiment.

The processor 510 may be a single component or may be a combination of processing elements. For example, it may be a CPU, ASIC, or one or more integrated circuits configured to implement the above methods, such as at least one microprocessor DSP, or at least one programmable gate array FPGA, or the like.

Those skilled in the art will appreciate that in one or more of the foregoing examples, the functions described in the detailed description of the application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in the form of software instructions being executed by a processor. The software instructions may be composed of corresponding software modules. The software modules may be stored in a computer-readable storage medium, which may 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 an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (e.g., solid state disk (Solid STATE DISK, SSD)), etc. The computer readable storage medium includes, but is not limited to, random access Memory (Random Access Memory, RAM), flash Memory, read Only Memory (ROM), erasable programmable Read Only Memory (Erasable Programmable ROM), electrically Erasable Programmable Read Only Memory (EEPROM), registers, hard disk, removable disk, compact disk Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary computer readable storage medium is coupled to the processor such the processor can read information from, and write information to, the computer readable storage medium. In the alternative, the computer-readable storage medium may be integral to the processor. The processor and the computer readable storage medium may reside in an ASIC. In addition, the ASIC may reside in an access network device, a target network device, or a core network device. It is of course possible that the processor and the computer-readable storage medium reside as discrete components in an access network device, a target network device, or a core network device. When implemented in software, may also 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. When loaded and executed on a computer or chip, produces in whole or in part a flow or function in accordance with embodiments of the present application. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program instructions may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)), or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center.

The above-described embodiments illustrate but do not limit the application, and a person skilled in the art can devise numerous alternative examples within the scope of the claims. It will be appreciated by persons skilled in the art that the application is not limited to the exact construction which has been described above and illustrated in the accompanying drawings, and that suitable adaptations, modifications, equivalents, improvements and the like may be made to the specific embodiments without departing from the scope of the application as defined in the appended claims. Accordingly, any modifications or variations can be made in accordance with the principles and concepts of the present application within the scope of the application as defined in the appended claims.

Claims

A method for determining a resource allocation indication field, the method comprising:

The method comprises the steps that a terminal device receives Downlink Control Information (DCI) sent by a network device, wherein the DCI is used for scheduling N channels, the N channels are located in M service cells and/or service cell groups, N, M is a positive integer, and M is smaller than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; and the bit number corresponding to the resource allocation indication domain is a first bit number.
The method of claim 1, wherein Q of the N channels are located in a same serving cell or a same group of serving cells, wherein Q is a positive integer, and the number of bits of a subzone in the resource allocation indication field corresponding to the Q channels is a fourth number of bits.
A method according to claim 1 or 2, characterized in that:

The first number of bits is determined based on at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; the resource scheduling granularity corresponding to the activated BWP of the first service cell; and/or the number of the groups of groups,

If the first serving cell corresponds to the subdomain, the fourth number of bits is determined according to at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; the resource scheduling granularity corresponding to the activated BWP of the first service cell;

The first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal equipment.
The method according to claim 1 or 2, wherein the first number of bits is determined from a maximum or minimum of at least one second number of bits; and/or the number of the groups of groups,

The fourth number of bits is determined according to a maximum value or a minimum value of the at least one second number of bits corresponding to the subfield;

Wherein the second number of bits is a number of bits required for channel resource allocation of each serving cell in the first type of serving cells.
The method of claim 4, wherein the first type of serving cell comprises one of:

All service cells configured by the network equipment through high-layer signaling;

all cells in a first set of cells configured by the network device;

All cells in the first group of cells agreed by the protocol.
The method of claim 5, wherein the first set of serving cells comprises the first serving cell or the first set of serving cells is a set of serving cells corresponding to the first serving cell, wherein the first serving cell is a cell corresponding to a physical downlink control channel, PDCCH, detected by the terminal device.
A method according to any one of claims 4 to 6, wherein the first type of serving cell comprises a first type of serving cell and a second type of serving cell; the first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal device, and a channel of each serving cell in the second class of serving cells and a channel of the first serving cell can be scheduled by the same downlink control information DCI.
The method of any one of claims 1 to 7, wherein the method further comprises:

adding a first value in front of the resource allocation indication field by the terminal device when the first bit number is smaller than a third bit number, wherein the first value is added to the size of the third bit number, and the third bit number is the bit number required by one channel resource allocation in the N channels; and/or

And in the case that the fourth bit number is smaller than a fifth bit number, the terminal device adds the first value in front of the subdomain, and the bit number of the subdomain after adding the first value reaches the size of the fifth bit number, wherein the fifth bit number is the bit number required by one channel resource allocation in the Q channels.
The method of any one of claims 1 to 7, wherein the method further comprises:

In the case that the first bit number is greater than a third bit number X, the terminal device interprets the resource allocation indication field using a lowest X bit or a highest X bit of the resource allocation indication field; wherein the third bit number X is a bit number required for allocating a channel resource in the N channels, and X is an integer; and/or

In the case that the fourth bit number is greater than the fifth bit number Y, the terminal device interprets the subfield using the lowest Y bit or the highest Y bit of the subfield; wherein the fifth number of bits Y is a number of bits required for allocation of one channel resource of the Q channels, and Y is an integer.
The method of any one of claims 1 to 9, wherein the method further comprises:

the terminal equipment determines a resource allocation result of a first channel according to the resource allocation indication domain or the subdomain;

determining resource allocation of the N channels or the rest channels except the first channel in the Q channels according to the resource allocation result;

wherein the first channel comprises: a channel corresponding to the first service cell; and/or, the channel with the minimum or maximum bit number required by resource allocation in the channels corresponding to the first type of service cells.
A method for determining a resource allocation indication field, the method comprising:

The network equipment receives and transmits Downlink Control Information (DCI) to the terminal equipment, wherein the DCI is used for scheduling N channels, the N channels are positioned in M service cells and/or service cell groups, N, M is a positive integer, and M is smaller than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; and the bit number corresponding to the resource allocation indication domain is a first bit number.
The method of claim 11, wherein Q of the N channels are located in a same serving cell or a same group of serving cells, wherein Q is a positive integer, and the number of bits of a subzone in the resource allocation indication field corresponding to the Q channels is a fourth number of bits.
The method of claim 11 or 12, wherein:

The first number of bits is determined based on at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; the resource scheduling granularity corresponding to the activated BWP of the first service cell; and/or the number of the groups of groups,

If the first serving cell corresponds to the subdomain, the fourth number of bits is determined according to at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; the resource scheduling granularity corresponding to the activated BWP of the first service cell;

The first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal equipment.
The method according to claim 11 or 12, wherein the first number of bits is determined from a maximum or minimum of at least one second number of bits; and/or the number of the groups of groups,

The fourth number of bits is determined according to a maximum value or a minimum value of the at least one second number of bits corresponding to the subfield;

Wherein the second number of bits is a number of bits required for channel resource allocation of each serving cell in the first type of serving cells.
The method of claim 14, wherein the first type of serving cell comprises one of:

All service cells configured by the network equipment through high-layer signaling;

all cells in a first set of cells configured by the network device;

All cells in the first group of cells agreed by the protocol.
The method of claim 15, wherein the first set of serving cells comprises the first serving cell, and/or the first set of serving cells is a set of serving cells corresponding to the first serving cell, wherein the first serving cell is a cell corresponding to a physical downlink control channel, PDCCH, detected by the terminal device.
A method according to any one of claims 14 to 16, wherein the first type of serving cell comprises a first type of serving cell and a second type of serving cell; the first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal device, and a channel of each serving cell in the second class of serving cells and a channel of the first serving cell can be scheduled by the same downlink control information DCI.
A terminal device, characterized in that the terminal device comprises:

A receiving unit, configured to receive downlink control information DCI sent by a network device, where the DCI is used to schedule N channels, where the N channels are located in M service cells and/or service cell groups, N, M is a positive integer, and M is less than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; and the bit number corresponding to the resource allocation indication domain is a first bit number.
The terminal device of claim 18, wherein Q of the N channels are located in a same serving cell or a same serving cell group, wherein Q is a positive integer, and the number of bits of a subzone in the resource allocation indication field corresponding to the Q channels is a fourth number of bits.
A terminal device according to claim 18 or 19, characterized in that:

The first number of bits is determined based on at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; the resource scheduling granularity corresponding to the activated BWP of the first service cell; and/or the number of the groups of groups,

If the first serving cell corresponds to the subdomain, the fourth number of bits is determined according to at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; the resource scheduling granularity corresponding to the activated BWP of the first service cell;

The first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal equipment.
The terminal device according to claim 18 or 19, wherein the first number of bits is determined according to a maximum or minimum of at least one second number of bits; and/or

The fourth number of bits is determined according to a maximum value or a minimum value of the at least one second number of bits corresponding to the subfield;

Wherein the second number of bits is a number of bits required for channel resource allocation of each serving cell in the first type of serving cells.
The terminal device of claim 21, wherein the first type of serving cell comprises one of:

All service cells configured by the network equipment through high-layer signaling;

all cells in a first set of cells configured by the network device;

All cells in the first group of cells agreed by the protocol.
The terminal device of claim 22, wherein the first set of serving cells comprises the first serving cell, and/or the first set of serving cells is a set of serving cells corresponding to the first serving cell, wherein the first serving cell is a cell corresponding to a physical downlink control channel, PDCCH, detected by the terminal device.
A terminal device according to any of claims 21 to 23, wherein the first type of serving cell comprises a first serving cell and a second type of serving cell; the first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal device, and a channel of each serving cell in the second class of serving cells and a channel of the first serving cell can be scheduled by the same downlink control information DCI.
The terminal device according to any of the claims 18 to 24, wherein the terminal device further comprises:

an extension unit, configured to add a first value before the resource allocation indication field when the first number of bits is less than a third number of bits, where the third number of bits is a number of bits required for allocation of a channel resource in the N channels, and the number of bits of the resource allocation indication field after adding the first value reaches a size of the third number of bits;

The expansion unit is further configured to add the first value before the subzone when the fourth number of bits is smaller than a fifth number of bits, where the number of bits of the subzone after adding the first value reaches the size of the fifth number of bits, and the fifth number of bits is a number of bits required for allocation of channel resources in the Q channels.
The terminal device according to any of the claims 18 to 24, wherein the terminal device further comprises:

An interpretation unit configured to interpret the resource allocation indication field using a lowest X bit or a highest X bit of the resource allocation indication field when the first number of bits is greater than a third number of bits X; wherein the third bit number X is a bit number required for allocating a channel resource in the N channels, and X is an integer;

The interpretation unit is further configured to interpret the subfield using a lowest Y bit or a highest Y bit of the subfield in a case where the fourth number of bits is greater than the fifth number of bits Y; wherein the fifth number of bits Y is a number of bits required for allocation of one channel resource of the Q channels, and Y is an integer.
The terminal device according to any of the claims 18 to 26, wherein the terminal device further comprises:

A determining unit, configured to determine a resource allocation result of a first channel according to the resource allocation indication field or the subfield, and determine resource allocations of the N channels or other channels except the first channel in the Q channels according to the resource allocation result;

wherein the first channel comprises: a channel corresponding to the first service cell; and/or, the channel with the minimum or maximum bit number required by resource allocation in the channels corresponding to the first type of service cells.
A network device, the network device comprising:

A sending unit, configured to send downlink control information DCI to a terminal device, where the DCI is used to schedule N channels, where the N channels are located in M service cells and/or service cell groups, N, M is a positive integer, and M is less than or equal to N; wherein the DCI includes a resource allocation indication field for indicating resources of the N channels; and the bit number corresponding to the resource allocation indication domain is a first bit number.
The network device of claim 28, wherein Q of the N channels are located in a same serving cell or a same group of serving cells, wherein Q is a positive integer, and the number of bits of a subzone in the resource allocation indication field corresponding to the Q channels is a fourth number of bits.
The network device of claim 28 or 29, wherein:

The first number of bits is determined based on at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; the resource scheduling granularity corresponding to the activated BWP of the first service cell; and/or the number of the groups of groups,

If the first serving cell corresponds to the subdomain, the fourth number of bits is determined according to at least one of: the size of the active BWP of the first serving cell; the resource allocation type corresponding to the activated BWP of the first serving cell; the resource scheduling granularity corresponding to the activated BWP of the first service cell;

The first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal equipment.
The network device of claim 28 or 29, wherein the first number of bits is determined from a maximum or minimum of at least one second number of bits; and/or, the fourth number of bits is determined according to a maximum value or a minimum value of the at least one second number of bits corresponding to the subfield;

Wherein the second number of bits is a number of bits required for channel resource allocation of each serving cell in the first type of serving cells.
The network device of claim 34, wherein the first type of serving cell comprises one of:

All service cells configured by the network equipment through high-layer signaling;

The first type of serving cells include all serving cells in a first group of serving cells configured by the network device;

All cells in the first group of cells agreed by the protocol.
The network device of claim 32, wherein the first set of cells comprises the first cell, and/or the first set of cells is a set of cells corresponding to the first cell, wherein the first cell is a cell corresponding to a physical downlink control channel, PDCCH, detected by the terminal device.
A network device according to any one of claims 31 to 33, wherein the first type of serving cell comprises a first type of serving cell and a second type of serving cell; the first serving cell is a cell corresponding to a physical downlink control channel PDCCH detected by the terminal device, and a channel of each serving cell in the second class of serving cells and a channel of the first serving cell can be scheduled by the same downlink control information DCI.
A terminal device, comprising: a processor and a memory; the processor invokes a program in the memory to perform the method of determining a resource allocation indication field according to any of the preceding claims 1 to 10.
A network device, comprising: a processor and a memory; the processor invokes a program in the memory to perform the method of determining a resource allocation indication field according to any of the preceding claims 11 to 17.
A chip, comprising: processor for calling and running a computer program from a memory, the device on which the chip is installed performing the method of determining a resource allocation indication field according to any of claims 1 to 10 or performing the method of determining a resource allocation indication field according to any of claims 11 to 17.
A computer-readable storage medium, wherein a program of the method of determining a resource allocation indication field is stored on the computer-readable storage medium, which when executed by a processor implements the method of determining a resource allocation indication field according to any one of the preceding claims 1 to 10, or implements the method of determining a resource allocation indication field according to any one of the preceding claims 11 to 17.
A computer program product stored on a non-transitory computer readable storage medium, which when executed implements the method of determining a resource allocation indication field according to any of claims 1 to 10 or the method of determining a resource allocation indication field according to any of claims 11 to 17.
A computer program, characterized in that the computer program, when executed, implements the method of determining a resource allocation indication field according to any of claims 1 to 10 or implements the method of determining a resource allocation indication field according to any of claims 11 to 17.