Uplink DC position indication method, terminal, and network side device

Abstract

The present application relates to the technical field of communications, and discloses an uplink DC position indication method, a terminal, and a network side device. The uplink DC position indication method of embodiments of the present application comprises: a terminal sends first information, wherein the first information is used for indicating position information of DC, and the first information comprises at least one of the following: a sub-carrier index or offset information where the DC is located in at least one of the following: a frequency band, a cell, a BWP, a frequency domain unit, and a BWP group; default DC information, wherein the default DC information is used for determining the position of the DC or default DC; offset information between the DC and the default DC; at least one of the following associated with the DC: BWP information, BWP group information, frequency domain unit information, and an absolute frequency domain range; and the absolute frequency domain position of the DC.

Description

Uplink DC position indication method, terminal and network side device

[0001] Cross-reference

[0002] The present application claims priority to the Chinese patent application No. 2024105321017, filed on April 29, 2024, and entitled "Uplink DC position indication method, terminal and network side device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and specifically relates to an uplink DC position indication method, a terminal and a network side device. BACKGROUND

[0004] In a communication system, the center frequency of the signal transmission bandwidth can be used for up-conversion or down-conversion processing in analog signal modulation and demodulation, which is also called direct current (DC). In the related art, the reporting of the uplink DC is at the bandwidth part (BWP) level, that is, the uplink DC of each BWP can be reported. However, if there are multiple frequency bands (such as multiple carriers, multiple frequency parts, multiple frequency bands or multiple sub-bands) in a cell, how to report the uplink DC needs to be further designed. SUMMARY

[0005] Embodiments of the present application provide an uplink DC position indication method, a terminal and a network side device, which can solve the problem that the uplink DC cannot be reported in the case that there are multiple frequency bands in a cell.

[0006] In a first aspect, an uplink DC position indication method is provided, including: a terminal sending first information, the first information being used to indicate DC position information, the first information including at least one of the following: a subcarrier index or offset information of the DC located in at least one of the following: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; default DC information, the default DC information being used to determine the position of the DC or a default DC; offset information between the DC and the default DC; at least one of the following associated with the DC: BWP information, BWP group information, frequency domain unit information, absolute frequency domain range; and an absolute frequency domain position of the DC.

[0007] In a second aspect, an uplink DC position indication method is provided, comprising: receiving, by a network side device, first information, the first information being used to indicate position information of a DC, the first information comprising at least one of: subcarrier index or offset information of the DC in at least one of: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; default DC information, the default DC information being used to determine a position of the DC or a default DC; offset information between the DC and the default DC; at least one of: BWP information, BWP group information, frequency domain unit information, absolute frequency domain range associated with the DC; and absolute frequency domain position of the DC.

[0008] In a third aspect, an uplink DC position indication apparatus is provided, comprising: a sending module, configured to send first information, the first information being used to indicate position information of a DC, the first information comprising at least one of: subcarrier index or offset information of the DC in at least one of: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; default DC information, the default DC information being used to determine a position of the DC or a default DC; offset information between the DC and the default DC; at least one of: BWP information, BWP group information, frequency domain unit information, absolute frequency domain range associated with the DC; and absolute frequency domain position of the DC.

[0009] In a fourth aspect, an uplink DC position indication apparatus is provided, comprising: a receiving module, configured to receive first information, the first information being used to indicate position information of a DC, the first information comprising at least one of: subcarrier index or offset information of the DC in at least one of: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; default DC information, the default DC information being used to determine a position of the DC or a default DC; offset information between the DC and the default DC; at least one of: BWP information, BWP group information, frequency domain unit information, absolute frequency domain range associated with the DC; and absolute frequency domain position of the DC.

[0010] In a fifth aspect, an uplink DC position indication apparatus is provided, the apparatus being configured to perform the steps of the method according to the first aspect, or to implement the steps of the method according to the second aspect.

[0011] In a sixth aspect, a terminal is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method according to the first aspect.

[0012] In a seventh aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is configured to send first information, the first information being used to indicate location information of a DC, the first information comprising at least one of: subcarrier index or offset information of the DC in at least one of: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; default DC information used to determine the location of the DC or a default DC; offset information between the DC and a default DC; at least one of: BWP information, BWP group information, frequency domain unit information, absolute frequency domain range associated with the DC; and absolute frequency domain location of the DC.

[0013] In an eighth aspect, a network side device is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method according to the second aspect.

[0014] In a ninth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to receive first information, the first information being used to indicate location information of a DC, the first information comprising at least one of: subcarrier index or offset information of the DC in at least one of: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; default DC information used to determine the location of the DC or a default DC; offset information between the DC and a default DC; at least one of: BWP information, BWP group information, frequency domain unit information, absolute frequency domain range associated with the DC; and absolute frequency domain location of the DC.

[0015] In a tenth aspect, a readable storage medium is provided, the readable storage medium storing programs or instructions, the programs or instructions being executed by a processor to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the second aspect.

[0016] In an eleventh aspect, a wireless communication system is provided, comprising a terminal and a network side device, the terminal being configured to implement the steps of the method according to the first aspect, and the network side device being configured to implement the steps of the method according to the second aspect.

[0017] In a twelfth aspect, a chip is provided, comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to run programs or instructions to implement the method according to the first aspect, or to implement the method according to the second aspect.

[0018] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium, and is executed by at least one processor to implement the method according to the first aspect, or to implement the method according to the second aspect.

[0019] In the embodiments of the present application, in the case that the serving cell of the terminal comprises multiple frequency bands, the terminal reports the subcarrier index or offset information of the DC, or reports the default DC information, or reports the offset information between the DC and the default DC, or reports the absolute frequency domain position of the DC, or reports the information associated with the DC, and the like by sending the first information, so that the network side device can obtain the position information of the DC, and improve the communication quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

[0021] FIG. 2 is a schematic flowchart of an uplink DC position indication method according to an embodiment of the present application;

[0022] FIG. 3 is a schematic diagram of an uplink DC position according to an embodiment of the present application;

[0023] FIG. 4 is a schematic diagram of an uplink DC position according to an embodiment of the present application;

[0024] FIG. 5 is a schematic diagram of an uplink DC position according to an embodiment of the present application;

[0025] FIG. 6 is a schematic diagram of an uplink DC position according to an embodiment of the present application;

[0026] FIG. 7 is a schematic diagram of an uplink DC position according to an embodiment of the present application;

[0027] FIG. 8 is a schematic flowchart of an uplink DC position indication method according to an embodiment of the present application;

[0028] FIG. 9 is a schematic diagram of the structure of an uplink DC position indication apparatus according to an embodiment of the present application;

[0029] FIG. 10 is a schematic diagram of the structure of an uplink DC position indication apparatus according to an embodiment of the present application;

[0030] FIG. 11 is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0031] FIG. 12 is a schematic diagram of the structure of a terminal according to an embodiment of the present application;

[0032] FIG. 13 is a schematic diagram of the structure of a network side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art are within the scope of the present application.

[0034] The terms "first", "second", and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally a class, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, the protection scope of "A or B" at least covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and B. In addition, the terms "A and / or B", "at least one of A and B", "at least one of A or B" also at least cover the above three schemes, respectively. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0035] The term "indication" in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). Among them, the direct indication can be understood as that the sender explicitly informs the receiver of specific information, operation to be performed or request result, etc. in the sent indication; the indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operation to be performed or the request result according to the judgment result.

[0036] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0037] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0038] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.

[0039] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make a specific limitation here. It can be understood that the above function modules can be network elements in a hardware device, can be software function modules running on a special hardware, or can be virtualized function modules instantiated on a platform (for example, a cloud platform).

[0040] The uplink DC position indication method provided by the embodiments of the present application will be described in detail below in combination with the drawings and some embodiments and application scenarios.

[0041] As shown in FIG. 2, the present application provides an uplink DC position indication method 200, which can be executed by a terminal, in other words, the method can be executed by software or hardware installed in the terminal, and the method includes the following steps.

[0042] S202: The terminal sends first information, wherein the first information is used to indicate the position information of the DC, and the first information includes at least one of the following: 1) subcarrier index or offset information of the DC located in at least one of the following: band, cell, BWP, frequency domain unit, BWP group; 2) default DC information, wherein the default DC information is used to determine the position of the DC or default DC; 3) offset information between the DC and the default DC; 4) at least one of the following associated with the DC: BWP information (such as BWP ID), BWP group information, frequency domain unit information, and absolute frequency domain range; 5) absolute frequency domain position of the DC.

[0043] In the embodiments of the present application, the serving cell of the terminal can be composed of multiple frequency bands, and these frequency bands can be discontinuous. A frequency band is a group of continuous frequency domain resources, which can be a band, a carrier, a subband, a BWP, a frequency domain part, etc., and the size of each frequency band can be different. For example, a cell is composed of four frequency bands, and the sizes of the four frequency bands are 3MHz, 10MHz, 5MHz, and 5MHz respectively. When the terminal has multiple activated frequency bands, it can be multiple activated BWPs; or it can be one BWP containing multiple activated frequency bands.

[0044] The embodiments of the present application can be applied in 6G, wherein one flexible cell has multiple carriers / frequency parts / bands / subbands, and the problem of uplink DC reporting in 6G system is solved.

[0045] In one embodiment, the terminal reports the location information of the DC based on at least one of the following:

[0046] 1) Each configured BWP, for example, the terminal reports the location information of the DC of each configured BWP.

[0047] 2) Each activated BWP, for example, the terminal reports the location information of the DC of each activated BWP.

[0048] 3) The BWP after switching, for example, the terminal reports the location information of the DC of the BWP after switching once the BWP switching occurs.

[0049] 4) The BWP indicated by the network side to report the location information of the DC, for example, the terminal reports the location information of the DC of the BWP indicated by the network side.

[0050] 5) The band combination supported by the terminal. Optionally, the location of the DC under the band combination is fixed, for example, located in the middle of the band combination. Optionally, the DC locations of different activated BWP combinations under the band combination are determined according to the first information, or defined to be located in the middle of the activated BWP combination.

[0051] 6) A predefined rule, for example, the location of the DC is located in the middle of the bandwidth, or a certain fixed frequency point, or a certain fixed subcarrier.

[0052] The uplink DC location reporting method provided by the embodiments of the present application, in the case that the serving cell of the terminal includes multiple frequency bands, the terminal reports the subcarrier index or offset information of the DC, or the default DC information, or the offset information between the DC and the default DC, or the absolute frequency domain location of the DC, or the information associated with the DC, etc. by sending the first information, so that the network side device can obtain the location information of the DC, and further can perform puncturing or rate matching processing in demodulation based on the location information of the DC, etc., to improve the communication quality.

[0053] In one embodiment, the first information includes the subcarrier index of the DC in the frequency band; wherein the subcarrier index starts from the starting reference point BRB0 of the frequency band, and is numbered according to the SCS of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC.

[0054] This embodiment can indicate the location information of the DC of one or more BWPs in the frequency band, or indicate the location information of the DC of one or more BWP groups in the frequency band according to the configured frequency band.

[0055] Optionally, the reference SCS of the BWP group is determined according to at least one of the following: 1) the SCS of the BWP or the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 2) the maximum or minimum SCS in the BWP group; 3) the SCS of the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 4) the maximum or minimum SCS in the frequency domain unit in the BWP group.

[0056] In this embodiment, the starting reference point BRB0 of the frequency band can be indicated by the network side device, for example, the network side indicates a frequency point as BRB0 for each frequency band, or defines a fixed position in each frequency band as BRB0, for example, the lowest starting PRB of the configured BWP in the frequency band, or the lowest starting PRB of the frequency band.

[0057] In one embodiment, the first information includes the subcarrier index of the DC located in the cell; wherein the subcarrier index starts from the starting common reference point CRB0 of the cell, and is numbered according to the subcarrier spacing (SCS) of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC.

[0058] This embodiment can indicate the position information of the DC of one or more BWPs in the serving cell of the terminal, or indicate the position information of the DC of one or more BWP groups in the serving cell.

[0059] Optionally, the reference SCS of the BWP group is determined according to at least one of the following: 1) the SCS of the BWP or the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 2) the maximum or minimum SCS in the BWP group; 3) the SCS of the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 4) the maximum or minimum SCS in the frequency domain unit in the BWP group.

[0060] In one embodiment, the first information includes the subcarrier index of the DC located in the BWP; wherein the subcarrier index starts from the starting reference point PRB0 of the BWP, and is numbered according to the SCS of the BWP.

[0061] This embodiment can report the position information of the DC of each BWP, each BWP can include one frequency domain unit, and can also include multiple frequency domain units.

[0062] Optionally, in the case where the BWP includes multiple SCS, the SCS of the BWP is determined according to at least one of the following: the maximum or minimum SCS in the frequency domain unit of the BWP; the SCS of the frequency domain unit at the lowest or highest frequency domain position of the BWP.

[0063] In an embodiment, the first information comprises a subcarrier index of the DC located in the frequency domain unit; wherein the subcarrier index is numbered from a starting reference point PRB0 of the frequency domain unit according to a SCS of the frequency domain unit.

[0064] This embodiment can report the position information of the DC of each frequency domain unit. The frequency domain unit mentioned in various embodiments of the present application can be a band, a carrier, a subband, a frequency domain part, a BWP group, etc.

[0065] Optionally, the BWP mentioned in various embodiments of the present application can be at least one of an initial uplink BWP, an initial downlink BWP, an uplink BWP, and a downlink BWP.

[0066] Optionally, the frequency domain unit mentioned in various embodiments of the present application can be at least one of an initial uplink frequency domain unit, an initial downlink frequency domain unit, an uplink frequency domain unit, and a downlink frequency domain unit.

[0067] Optionally, in the case where the frequency domain unit comprises multiple SCSs, the SCS of the frequency domain unit is determined according to at least one of the following: the maximum or minimum SCS in the frequency domain unit; the SCS corresponding to the lowest or highest frequency domain position of the frequency domain unit.

[0068] In an embodiment, the first information comprises a subcarrier index of the DC located in the BWP group; wherein the subcarrier index is numbered from a starting reference point PRB0 of the BWP group according to a reference SCS of the BWP group.

[0069] This embodiment can report the position information of the DC of each BWP group with the BWP group as a granularity.

[0070] Optionally, the starting reference point PRB0 of the BWP group is the PRB of the lowest frequency domain position in the BWP group.

[0071] Optionally, the reference SCS of the BWP group is determined according to at least one of the following: 1) the SCS of the BWP or the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 2) the maximum or minimum SCS in the BWP group; 3) the SCS of the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 4) the maximum or minimum SCS in the frequency domain unit in the BWP group.

[0072] In an embodiment, the first information comprises offset information of the DC located in the band; wherein the offset information is the offset between the DC and a starting reference point BRB0 in the band.

[0073] The embodiment can report position information of a DC of one or more BWPs in a frequency band according to a configured frequency band; or report position information of a DC of one or more BWP groups in the frequency band.

[0074] In one embodiment, the first information comprises offset information of the DC in the cell; wherein the offset information is an offset between the DC and a starting common reference point CRB0 in the cell.

[0075] The embodiment can report position information of a DC of one or more BWPs in a cell; or report position information of a DC of one or more BWP groups in the cell.

[0076] In one embodiment, the first information comprises offset information of the DC in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the BWP.

[0077] The embodiment can report position information of a DC of each BWP, each BWP can comprise one frequency domain unit, and can also comprise a plurality of frequency domain units.

[0078] In one embodiment, the first information comprises offset information of the DC in the frequency domain unit; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the frequency domain unit.

[0079] The embodiment can report position information of a DC of each frequency domain unit.

[0080] The offset information mentioned in the above embodiments can be determined based on one of the following:

[0081] 1) The number of offset subcarriers determined by the SCS of the BWP associated with the DC.

[0082] 2) The number of offset subcarriers determined by the reference SCS of the BWP group associated with the DC.

[0083] 3) The absolute frequency domain width.

[0084] Optionally, the reference SCS of the BWP group is determined according to at least one of the following: 1) the SCS of the BWP or frequency domain unit at the lowest or highest frequency domain position in the BWP group; 2) the maximum or minimum SCS in the BWP group; 3) the SCS of the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 4) the maximum or minimum SCS in the frequency domain unit in the BWP group.

[0085] In one embodiment, the default DC information is used to determine the position of the DC or default DC, and the position of the default DC is determined based on at least one of the following:

[0086] 1) a BWP configured in a BWP group associated with the DC.

[0087] 2) a BWP activated in a BWP group associated with the DC.

[0088] 3) a frequency domain unit configured in a frequency domain unit group associated with the DC.

[0089] 4) a frequency domain unit activated in a frequency domain unit group associated with the DC.

[0090] The above listed information is known to the network side device, and the network side device can determine the location of the default DC based on the information and the first information.

[0091] In this embodiment, the network side device can determine the location of the default DC based on the default DC information, determine the location of the DC based on the location of the default DC, for example, the location of the DC is obtained by adding an offset to the location of the default DC.

[0092] In one embodiment, the offset information between the DC and the default DC is determined based on at least one of the following:

[0093] 1) an offset subcarrier number determined based on the minimum or maximum SCS in all BWP configured in a BWP group associated with the DC.

[0094] 2) an offset subcarrier number determined based on the SCS of the BWP with the lowest or highest frequency domain location in all BWP configured in a BWP group associated with the DC.

[0095] 3) an offset subcarrier number determined based on the minimum or maximum SCS in all frequency domain units configured in a frequency domain unit group associated with the DC.

[0096] 4) an offset subcarrier number determined based on the SCS of the frequency domain unit with the lowest or highest frequency domain location in all frequency domain units configured in a frequency domain unit group associated with the DC.

[0097] 5) an absolute frequency domain width.

[0098] In this embodiment, the default DC can be determined according to terminal indication or protocol predefinition, for example, the location of the default DC is in the middle of the first bandwidth, and the first bandwidth is determined according to the above default DC information.

[0099] In this embodiment, the network side device can determine the location of the default DC, determine the location of the DC based on the location of the default DC and the offset between them, for example, the location of the DC is obtained by adding an offset to the location of the default DC.

[0100] In an embodiment, the BWP group information is used to indicate at least one of the following:

[0101] 1) Each BWP in a BWP group, for example, four BWP groups are indicated as: {BWP1, BWP2}, {BWP3, BWP4}, {BWP5}, {BWP6}.

[0102] 2) The BWP with the lowest frequency domain position and the BWP with the highest frequency domain position in a BWP group.

[0103] This embodiment is applicable to the case of reporting the position information of each DC in a BWP group as the granularity.

[0104] Optionally, the SCS of the multiple BWPs in the BWP group are the same.

[0105] In an embodiment, the position or number of the DC in the BWP or the BWP group is related to at least one of the following: Radio Frequency (RF) chain, Power Amplifier (PA), number of Local Oscillator (LO). For example, if the number of RF chains, PAs or LOs associated with the BWP or BWP group is greater than 1, the terminal can report the position of more than 1 DC on the BWP or BWP group.

[0106] Optionally, on the basis of any one of the above embodiments, the method further comprises: the terminal (sending end) puncturing, rate matching or modulating the subcarriers where the DC is located, so as to improve the communication quality.

[0107] The DC mentioned in each embodiment of the present application can be located in the guard band.

[0108] The DC mentioned in each embodiment of the present application can not overlap with the Synchronization Signal and PBCH block (SSB), Control Resource SET (CORESET), Sounding Reference Signal (SRS) or Demodulation Reference Signal (DMRS), which is beneficial to reduce the demodulation interference of the DC on the above signals and improve the communication quality.

[0109] In an embodiment, the DC is located at a specific position in the overlapping BWP (e.g., the middle of the overlapping BWP, or the middle + an offset), or the DC overlaps with the downlink DC position of the terminal; wherein the uplink BWP or frequency domain unit and the downlink BWP or frequency domain unit configured for the terminal overlap to implement full duplex, or the uplink and downlink transmissions are simultaneously configured in the BWP or frequency domain unit configured for the terminal.

[0110] In an embodiment, the method further comprises: the terminal receiving reporting request information, the reporting request information comprising at least one of the following:

[0111] 1) an indication that the DC position information needs to be reported.

[0112] 2) BWP information for which the DC position information needs to be reported.

[0113] 3) a BWP configured in a cell, a frequency band, or a carrier combination (CC combination).

[0114] 4) a BWP combination for which the DC position information needs to be reported, in some examples, the BWP combination has the same meaning as a BWP group.

[0115] 5) the activation status of each BWP in the BWP combination, such as active or deactivated.

[0116] To describe the uplink DC position indication method provided by the embodiments of the present application in detail, the following will be described in conjunction with several specific embodiments.

[0117] Embodiment One

[0118] Case 1: One cell includes at least one frequency domain unit, one BWP contains one frequency domain unit, and there is only one activated BWP in one cell, i.e., one activated frequency domain unit.

[0119] A possible implementation is as follows:

[0120] The network side sends DC position reporting request information, indicating true / false, true indicating that the UE is requested to report the DC position.

[0121] The UE receives the DC position reporting request information sent by the network side, and sends a message to report the DC position information.

[0122] The UE reports the DC position based on the configured BWP information. The DC position information can indicate a subcarrier index, for example, the DC is located at a subcarrier index in a BWP / frequency domain unit / band / cell. The DC position information can also indicate offset information, for example, the DC is located at offset information in a BWP / frequency domain unit / band / cell. The DC position information can also indicate absolute frequency point information. The UE also needs to report BWP information associated with the DC position information, for example, the BWP ID associated with the DC position information.

[0123] For example, as shown in FIG. 3, the UE reports the DC positions of BWP1-BWP6 as follows: offset1 is associated with BWP1, offset2 is associated with BWP2, …, offset6 is associated with BWP6.

[0124] In another possible implementation, the UE reports the DC position based on the activated BWP information. For example, in FIG. 3, the activated BWP is BWP1, and the UE reports the DC position of BWP1 as follows: offset1 is associated with BWP1.

[0125] In addition, there can be some frequency domain units (i.e., BWPs) with the same DC position. The UE can report the DC positions of these BWPs in a combined manner to avoid repeated reporting. For example, the DC positions of BWP1 and BWP2 are the same, the DC positions of BWP3 and BWP4 are the same, and the DC positions of BWP5 and BWP6 are the same. The UE reports the DC positions as follows: offset1 is associated with {BWP1, BWP2}, offset3 is associated with {BWP3, BWP4}, and offset5 is associated with {BWP5, BWP6}. Optionally, if the reporting can be combined, the BWPs in each BWP group need to meet additional conditions, for example, the SCS of the BWPs in the BWP group is the same.

[0126] Embodiment Two

[0127] Case 2: One cell includes at least one frequency domain unit, one BWP contains one frequency domain unit, and there can be multiple activated BWPs in one cell, that is, multiple activated frequency domain units.

[0128] The network side sends a DC position reporting request information, including at least one of the following: BWP (i.e. frequency domain unit) configured in the cell / band / CC combination, each BWP combination for which the network side requests to report the DC position, the status of each BWP in the BWP combination, for example, the network side sends a request information including: the BWP List configured in the cell is BWP1, BWP2, BWP3, BWP3; the status of each BWP in the two BWP combinations for which the network side requests to report the DC position is {deactivated, active, active, active}, {active, active, active, deactivated}.

[0129] The UE reports the DC position according to the received DC position reporting request, including at least one of the following: a BWP group associated with the DC, default DC information, offset information.

[0130] Optionally, the UE can report the BWP with the lowest frequency domain position in the BWP group + the BWP with the highest frequency domain position in the BWP group.

[0131] Optionally, the default DC information reported by the UE can be obtained based on the BWP configured in the associated BWP group or based on the activated BWP in the associated BWP group. If the default DC information reported by the UE is obtained based on the BWP configured in the associated BWP group, the default DC is located in the middle of the first bandwidth, and the first bandwidth depends on the BWP configured in the associated BWP group; if the default DC information reported by the UE is obtained based on the activated BWP in the associated BWP group, the default DC is located in the middle of the first bandwidth, and the first bandwidth depends on the activated BWP in the associated BWP group.

[0132] Optionally, the offset information is determined according to default DC information. The default DC information is based on a BWP configured in the associated BWP group to obtain the default DC, and the offset information is one offset value. If the default DC information is based on an active BWP in the associated BWP group to obtain the default DC, the offset information is a plurality of offset values or a list containing a plurality of offset values. The number of the plurality of offset values is the same as the number of BWP combinations in the DC position reporting request information. The reporting order of the plurality of offset values is the same as the order of the BWP combinations in the DC position reporting request information. The offset value is the offset subcarrier between the DC position and the default DC.

[0133] For example, as shown in FIG. 4 and FIG. 5, the UE reports the BWP group information associated with the DC as BWP1+BWP4 according to the DC position reporting request received by the network, and the default DC information is based on the active BWP in the associated BWP group to obtain the default DC. The offset information contains two offset values (there are two BWP combinations in the request information), wherein offset1 is the offset subcarrier interval between the DC and the default DC determined by the active BWP in the first BWP combination, and offset2 is the offset subcarrier interval between the DC and the default DC determined by the active BWP in the second BWP combination.

[0134] Embodiment Three

[0135] Case 3: One cell includes at least one frequency domain unit, one BWP can contain a plurality of frequency domain units, and only one active BWP in one cell, that is, one BWP containing a plurality of active frequency domain units.

[0136] The network side sends the DC position reporting request information, indicating true / false, and true means requesting the UE to report the DC position.

[0137] The UE receives the DC position reporting request information sent by the network side, and sends a message to report the DC position information.

[0138] The UE reports the DC position based on the configured BWP information. The DC position information can indicate a subcarrier index, for example, a subcarrier index of the DC in the BWP / frequency domain unit / band / cell, can indicate offset information, for example, offset information of the DC in the BWP / frequency domain unit / band / cell, or can indicate absolute frequency point information of the DC. The UE also needs to report BWP information associated with the DC position information, for example, a BWP ID associated with the DC position information, wherein the subcarrier index or the offset information is determined according to the smallest SCS of the frequency domain unit in the associated BWP.

[0139] For example, as shown in FIG. 6, the UE reports the DC positions of BWP1-BWP3 as follows: offset1 is associated with BWP1, offset2 is associated with BWP2, and offset3 is associated with BWP3.

[0140] In another possible implementation, as shown in FIG. 7, the UE needs to report two DC positions in one associated BWP, and the UE can report the DC positions of BWP1-BWP3 as follows: offset1 is associated with BWP1, offset2 and offset3 are associated with BWP2, and offset4 is associated with BWP3.

[0141] Embodiment Four

[0142] Case 4: One cell includes at least one frequency domain unit, one BWP can include multiple frequency domain units, and multiple activated BWP can exist in one cell, that is, multiple BWP including multiple activated frequency domain units, and the implementation of the UE reporting the DC position is similar to that of case 2.

[0143] In another possible implementation, the UE needs to report two DC positions in one associated BWP group, and the UE reports the DC position according to the received DC position reporting request, including at least one of the following: a frequency domain unit group associated with the DC, default DC information, and offset information.

[0144] Optionally, the associated frequency domain unit group reported by the UE can indicate the frequency domain unit at the lowest frequency domain position in the frequency domain unit group + the frequency domain unit at the highest frequency domain position in the frequency domain unit group.

[0145] Optionally, the default DC information reported by the UE can be based on a BWP configured in the associated frequency domain unit group to obtain the default DC, or based on an activated frequency domain unit in the associated frequency domain unit group to obtain the default DC. If the default DC information reported by the UE is based on the frequency domain unit configured in the associated frequency domain unit group to obtain the default DC, the default DC is located in the middle of the first bandwidth, and the first bandwidth depends on the frequency domain unit configured in the associated frequency domain unit group. If the default DC information reported by the UE is based on the activated frequency domain unit in the associated frequency domain unit group to obtain the default DC, the default DC is located in the middle of the first bandwidth, and the first bandwidth depends on the activated frequency domain unit in the associated frequency domain unit group.

[0146] Optionally, the offset information is determined according to the default DC information. If the default DC information is based on the frequency domain unit configured in the associated frequency domain unit group to obtain the default DC, the offset information is one offset value. If the default DC information is based on the activated frequency domain unit in the associated frequency domain unit group to obtain the default DC, the offset information is a plurality of offset values or a list containing a plurality of offset values. The number of the plurality of offset values is the same as the number of the BWP combinations in the DC position reporting request information, and the reporting order of the plurality of offset values is the same as the order of the BWP combinations in the DC position reporting request information. The offset value is the offset subcarrier between the DC position and the default DC.

[0147] The uplink DC position indication method according to the embodiment of the present application is described in detail above in combination with FIG. 2. The uplink DC position indication method according to another embodiment of the present application will be described in detail below in combination with FIG. 8. It can be understood that the network side device described from the network side device and the interaction with the terminal are the same as or corresponding to the description of the terminal side in the method shown in FIG. 2. To avoid repetition, the relevant description is appropriately omitted.

[0148] FIG. 8 is a flowchart of the implementation of the uplink DC position indication method according to the embodiment of the present application, which can be applied to the network side device. As shown in FIG. 8, the method 800 includes the following steps.

[0149] S802: The network-side device receives first information, wherein the first information is used to indicate position information of the DC, and the first information comprises at least one of the following: 1) subcarrier index or offset information of the DC in at least one of the following: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; 2) default DC information used to determine the position of the DC or the default DC; 3) offset information between the DC and the default DC; 4) at least one of the following associated with the DC: BWP information, BWP group information, frequency domain unit information, and absolute frequency domain range; and 5) absolute frequency domain position of the DC.

[0150] The uplink DC position reporting method provided by the embodiments of the present application can be used in the case where the serving cell of the terminal comprises multiple frequency bands. The terminal reports the subcarrier index or offset information of the DC, or the default DC information, or the offset information between the DC and the default DC, or the absolute frequency domain position of the DC, or the information associated with the DC, and the like, by sending the first information. In this way, the network-side device can obtain the position information of the DC, and further perform puncturing or rate matching processing in demodulation based on the position information of the DC, thereby improving the communication quality.

[0151] In one embodiment, the first information comprises the subcarrier index of the DC in the frequency band, wherein the subcarrier index starts from a starting reference point BRB0 of the frequency band, and is numbered according to the SCS of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC.

[0152] In one embodiment, the first information comprises the subcarrier index of the DC in the cell, wherein the subcarrier index starts from a starting common reference point CRB0 of the cell, and is numbered according to the SCS of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC.

[0153] In one embodiment, the first information comprises the subcarrier index of the DC in the BWP, wherein the subcarrier index starts from a starting reference point PRB0 of the BWP, and is numbered according to the SCS of the BWP.

[0154] In one embodiment, the first information comprises the subcarrier index of the DC in the frequency domain unit, wherein the subcarrier index starts from a starting reference point PRB0 of the frequency domain unit, and is numbered according to the SCS of the frequency domain unit.

[0155] In an embodiment, the first information comprises an offset information of the DC in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the BWP.

[0156] In an embodiment, the first information comprises an offset information of the DC in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the BWP.

[0157] In an embodiment, the first information comprises an offset information of the DC in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the BWP.

[0158] In an embodiment, the first information comprises an offset information of the DC in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the BWP.

[0159] In an embodiment, the first information comprises an offset information of the DC in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the BWP.

[0160] In an embodiment, the method further comprises determining the location of the default DC based on the information of the default DC and at least one of:

[0161] 1) a configured BWP in a BWP group associated with the DC.

[0162] 2) an activated BWP in a BWP group associated with the DC.

[0163] 3) a configured frequency domain unit in a frequency domain unit group associated with the DC.

[0164] 4) an activated frequency domain unit in a frequency domain unit group associated with the DC.

[0165] In an embodiment, the method further comprises determining the offset information between the DC and the default DC based on at least one of:

[0166] 1) an offset number of subcarriers determined based on a minimum or maximum SCS in all configured BWPs in a BWP group associated with the DC.

[0167] 2) an offset number of subcarriers determined based on a SCS of a BWP with a lowest or highest frequency domain location among all configured BWPs in a BWP group associated with the DC.

[0168] 3) the offset number of subcarriers determined based on the minimum or maximum SCS of all frequency domain units configured in the group of frequency domain units associated with the DC.

[0169] 4) the offset number of subcarriers determined based on the SCS of the frequency domain unit with the lowest or highest frequency domain location among all frequency domain units configured in the group of frequency domain units associated with the DC.

[0170] 5) the absolute frequency domain width.

[0171] In an embodiment, the DC is located at a specific position in the overlapping BWP, or the DC overlaps with the downlink DC position of the terminal; wherein the uplink BWP or frequency domain unit and the downlink BWP or frequency domain unit configured for the terminal overlap to realize full duplex, or the uplink and downlink transmission are simultaneously configured within the BWP or frequency domain unit configured for the terminal.

[0172] In an embodiment, the method further comprises: the network side device sends a reporting request information, and the reporting request information comprises at least one of the following:

[0173] 1) an indication that the position information of the DC needs to be reported.

[0174] 2) BWP information that the position information of the DC needs to be reported.

[0175] 3) BWP configured within a cell, a frequency band or a carrier combination (CC combination).

[0176] 4) BWP combination (BWP combination) that the position information of the DC needs to be reported, in some examples, the BWP combination (BWP combination) has the same meaning as represented by the BWP group (BWP group).

[0177] 5) the activation state of each BWP in the BWP combination, such as active or deactivated.

[0178] The uplink DC position indication method provided by the embodiments of the present application can be executed by an uplink DC position indication device. In the embodiments of the present application, the uplink DC position indication method is executed by the uplink DC position indication device, and the uplink DC position indication device provided by the embodiments of the present application is described.

[0179] Embodiments of the present application provide an uplink DC position indication apparatus. As an example, the uplink DC position indication apparatus can be a communication device or a component in a communication device, such as a chip. The communication device can be a terminal, a network side device, a server, or the like. For example, the terminal can include, but is not limited to, the types of terminals 11 listed above, the network side device can include, but is not limited to, the types of network side devices 12 listed above, and embodiments of the present application do not make specific limitations.

[0180] The uplink DC position indication apparatus includes a receiving module, a sending module, and a processing module. The receiving module, the sending module, and the processing module can be implemented by software or by hardware. When implemented by hardware, the processing module can be implemented by a processor. For example, the processor can include a general purpose processor, a special purpose processor, or the like, such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, or the like. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, or the like.

[0181] Specifically, referring to FIG. 9, when the uplink DC position indication apparatus is a terminal or a component in a terminal, the uplink DC position indication apparatus 900 includes a sending module 902 configured to send first information, where the first information is used to indicate position information of a DC, and the first information includes at least one of the following: 1) a subcarrier index or offset information of the DC in at least one of the following: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; 2) default DC information, where the default DC information is used to determine a position of the DC or a default DC; 3) offset information between the DC and the default DC; 4) at least one of the following associated with the DC: BWP information, BWP group information, frequency domain unit information, and an absolute frequency domain range; and 5) an absolute frequency domain position of the DC.

[0182] In one embodiment, the apparatus 900 (e.g., a terminal) reports the position information of the DC based on at least one of the following:

[0183] 1) Each configured BWP, for example, the terminal reports the location information of the DC of each configured BWP.

[0184] 2) Each activated BWP, for example, the terminal reports the location information of the DC of each activated BWP.

[0185] 3) The BWP after switching, for example, once the terminal has BWP switching, the terminal reports the location information of the DC of the BWP after switching.

[0186] 4) The BWP indicated by the network side to report the location information of the DC, for example, the terminal reports the location information of the DC of the BWP indicated by the network side.

[0187] 5) The band combination supported by the terminal. Optionally, the DC location under the band combination is fixed, for example, located in the middle of the band combination. Optionally, the DC location of different activated BWP combinations under the band combination is determined according to the first information, or defined to be located in the middle of the activated BWP combination.

[0188] 6) A predefined rule, for example, the location of the DC is located in the middle of the bandwidth, or a certain fixed frequency point, or a certain fixed subcarrier.

[0189] The uplink DC location reporting device provided by the embodiments of the present application, in the case that the serving cell of the terminal includes multiple frequency bands, the terminal reports the subcarrier index or offset information of the DC, or the default DC information, or the offset information between the DC and the default DC, or the absolute frequency domain location of the DC, or the information associated with the DC, and the like by sending the first information, so that the network side device can obtain the location information of the DC, and further can perform puncturing or rate matching processing in demodulation based on the location information of the DC, and improve the communication quality.

[0190] In one embodiment, the first information includes a subcarrier index of the DC in the frequency band; wherein the subcarrier index starts from a starting reference point BRB0 of the frequency band, and is numbered according to the SCS of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC.

[0191] This embodiment can indicate the location information of the DC of one or more BWPs in the frequency band according to the configured frequency band, or indicate the location information of the DC of one or more BWP groups in the frequency band.

[0192] Optionally, the reference SCS of the BWP group is determined according to at least one of the following: 1) the SCS of the BWP or the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 2) the maximum or minimum SCS in the BWP group; 3) the SCS of the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 4) the maximum or minimum SCS in the frequency domain unit in the BWP group.

[0193] In this embodiment, the starting reference point BRB0 of the frequency band can be indicated by the network side device, for example, the network side indicates a frequency point as BRB0 for each frequency band, or defines a fixed position in each frequency band as BRB0, for example, the lowest starting PRB of the configured BWP in the frequency band, or the lowest starting PRB of the frequency band.

[0194] In one embodiment, the first information includes the subcarrier index of the DC located in the cell; wherein the subcarrier index starts from the starting common reference point CRB0 of the cell, and is numbered according to the subcarrier spacing (SCS) of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC.

[0195] This embodiment can indicate the position information of the DC of one or more BWPs in the serving cell of the terminal; or indicate the position information of the DC of one or more BWP groups in the serving cell.

[0196] Optionally, the reference SCS of the BWP group is determined according to at least one of the following: 1) the SCS of the BWP or the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 2) the maximum or minimum SCS in the BWP group; 3) the SCS of the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 4) the maximum or minimum SCS in the frequency domain unit in the BWP group.

[0197] In one embodiment, the first information includes the subcarrier index of the DC located in the BWP; wherein the subcarrier index starts from the starting reference point PRB0 of the BWP, and is numbered according to the SCS of the BWP.

[0198] This embodiment can report the position information of the DC of each BWP, each BWP can include one frequency domain unit, and can also include multiple frequency domain units.

[0199] Optionally, in the case where the BWP includes multiple SCS, the SCS of the BWP is determined according to at least one of the following: the maximum or minimum SCS in the frequency domain unit of the BWP; the SCS of the frequency domain unit at the lowest or highest frequency domain position of the BWP.

[0200] In an embodiment, the first information comprises a subcarrier index of the DC located in the frequency domain unit; wherein the subcarrier index starts from a starting reference point PRB0 of the frequency domain unit, and is numbered according to a SCS of the frequency domain unit.

[0201] This embodiment can report the position information of the DC of each frequency domain unit. The frequency domain unit mentioned in various embodiments of the present application can be a band, a carrier, a subband, a frequency domain part, a BWP group, etc.

[0202] Optionally, in the case where the frequency domain unit comprises multiple SCSs, the SCS of the frequency domain unit is determined according to at least one of the following: the maximum or minimum SCS in the frequency domain unit; the SCS corresponding to the lowest or highest position of the frequency domain position of the frequency domain unit.

[0203] In an embodiment, the first information comprises a subcarrier index of the DC located in the BWP group; wherein the subcarrier index starts from a starting reference point PRB0 of the BWP group, and is numbered according to a reference SCS of the BWP group.

[0204] This embodiment can report the position information of the DC of each BWP group in the granularity of the BWP group.

[0205] Optionally, the starting reference point PRB0 of the BWP group is the PRB of the lowest frequency domain position within the BWP group.

[0206] Optionally, the reference SCS of the BWP group is determined according to at least one of the following: 1) the SCS of the BWP or the frequency domain unit at the lowest or highest frequency domain position within the BWP group; 2) the maximum or minimum SCS within the BWP group; 3) the SCS of the frequency domain unit at the lowest or highest frequency domain position within the BWP group; 4) the maximum or minimum SCS in the frequency domain unit within the BWP group.

[0207] In an embodiment, the first information comprises offset information of the DC located in the band; wherein the offset information is the offset between the DC and a starting reference point BRB0 within the band.

[0208] This embodiment can report the position information of the DC of one or more BWP within the band according to the configured band; or report the position information of the DC of one or more BWP group within the band.

[0209] In an embodiment, the first information comprises offset information of the DC located in the cell; wherein the offset information is the offset between the DC and a starting common reference point CRB0 of the cell.

[0210] The embodiment can report the location information of the DC of one or more BWPs in the cell; or report the location information of the DC of one or more BWP groups in the cell.

[0211] In one embodiment, the first information includes offset information of the DC located in the BWP; wherein the offset information is the offset between the DC and a starting reference point BRB0 in the BWP.

[0212] The embodiment can report the location information of the DC of each BWP, each BWP can include one frequency domain unit, and can also include multiple frequency domain units.

[0213] In one embodiment, the first information includes offset information of the DC located in the frequency domain unit; wherein the offset information is the offset between the DC and a starting reference point BRB0 in the frequency domain unit.

[0214] The embodiment can report the location information of the DC of each frequency domain unit.

[0215] The value of the offset information mentioned in the above embodiments can be determined based on one of the following:

[0216] 1) The number of offset subcarriers determined by the SCS of the BWP associated with the DC.

[0217] 2) The number of offset subcarriers determined by the reference SCS of the BWP group associated with the DC.

[0218] 3) The absolute frequency domain width.

[0219] Optionally, the reference SCS of the BWP group is determined according to at least one of the following: 1) the SCS of the BWP or frequency domain unit at the lowest or highest frequency domain position in the BWP group; 2) the maximum or minimum SCS in the BWP group; 3) the SCS of the frequency domain unit at the lowest or highest frequency domain position in the BWP group; 4) the maximum or minimum SCS in the frequency domain unit in the BWP group.

[0220] In one embodiment, the default DC information is used to determine the location of the DC or default DC, and the location of the default DC is determined based on at least one of the following:

[0221] 1) The configured BWP in the BWP group associated with the DC.

[0222] 2) The activated BWP in the BWP group associated with the DC.

[0223] 3) The configured frequency domain unit in the frequency domain unit group associated with the DC.

[0224] 4) the activated frequency domain unit in the group of frequency domain units associated with the DC.

[0225] In this embodiment, the network side device can determine the location of the default DC based on the default DC information, and determine the location of the DC based on the location of the default DC, for example, the location of the default DC plus an offset to obtain the location of the DC.

[0226] In one embodiment, the offset information between the DC and the default DC is determined based on at least one of the following:

[0227] 1) the offset subcarrier number determined based on the minimum or maximum SCS in all BWPs configured in the BWP group associated with the DC.

[0228] 2) the offset subcarrier number determined based on the SCS of the BWP with the lowest or highest frequency domain location in all BWPs configured in the BWP group associated with the DC.

[0229] 3) the offset subcarrier number determined based on the minimum or maximum SCS in all frequency domain units configured in the group of frequency domain units associated with the DC.

[0230] 4) the offset subcarrier number determined based on the SCS of the frequency domain unit with the lowest or highest frequency domain location in all frequency domain units configured in the group of frequency domain units associated with the DC.

[0231] 5) the absolute frequency domain width.

[0232] In this embodiment, the default DC can be determined according to terminal indication or protocol predefinition, for example, the location of the default DC is in the middle of the first bandwidth, and the first bandwidth is determined according to the default DC information.

[0233] In this embodiment, the network side device can determine the location of the default DC, and determine the location of the DC based on the location of the default DC and the offset therebetween, for example, the location of the default DC plus the offset to obtain the location of the DC.

[0234] In one embodiment, the BWP group information is used to indicate at least one of the following:

[0235] 1) each BWP in the BWP group, for example, four BWP groups are indicated, which are: {BWP1, BWP2}, {BWP3, BWP4}, {BWP5}, {BWP6}.

[0236] 2) the BWP with the lowest frequency domain location and the BWP with the highest frequency domain location in the BWP group.

[0237] This embodiment is applicable to the case of reporting the location information of the DC of each BWP group with BWP group as the granularity.

[0238] Optionally, the SCS of the plurality of BWPs in the BWP group is the same.

[0239] In one embodiment, the position or number of the DC in the BWP or the BWP group is related to at least one of the following: Radio Frequency (RF) chain, Power Amplifier (PA), LO number. For example, if the number of RF chains, PAs or LOs associated with the BWP or BWP group is greater than 1, the terminal can report more than one position of the DC on the BWP or BWP group.

[0240] Optionally, on the basis of any one of the above embodiments, the sending module 902 is further configured to puncture, rate match or modulate the subcarriers where the DC is located, so as to improve the communication quality.

[0241] The DC mentioned in various embodiments of the present application can be located in the guard band.

[0242] The DC mentioned in various embodiments of the present application can not overlap with the Synchronization Signal and PBCH block (SSB), Control Resource SET (CORESET), Sounding Reference Signal (SRS) or Demodulation Reference Signal (DMRS), which is beneficial for the terminal to perform puncturing or rate matching processing in modulation based on the position of the DC, and improves the communication quality.

[0243] In one embodiment, the DC is located at a specific position in the overlapping BWP (for example, the middle of the overlapping BWP, or the middle + offset), or the DC overlaps with the downlink DC position of the terminal; wherein the uplink BWP or frequency domain unit and the downlink BWP or frequency domain unit configured for the terminal overlap to realize full duplex, or the terminal is configured with uplink and downlink transmission in the BWP or frequency domain unit.

[0244] In one embodiment, the apparatus 900 further comprises a receiving module for receiving reporting request information, wherein the reporting request information comprises at least one of the following:

[0245] 1) An indication that the position information of the DC needs to be reported.

[0246] 2) BWP information for which the position information of the DC needs to be reported.

[0247] 3) BWP configured within a cell, a frequency band or a carrier combination (CC combination).

[0248] 4) BWP combination (BWP combination) that needs to report the position information of the DC, in some examples, the BWP combination (BWP combination) has the same meaning as the BWP group (BWP group) represented.

[0249] 5) Activation state of each BWP in the BWP combination, such as active, deactivated.

[0250] Referring to FIG. 10, when the uplink DC position indication device is a network side device or a component in the network side device, the uplink DC position indication device 1000 includes a receiving module 1002 configured to receive first information, wherein the first information is used to indicate the position information of the DC, and the first information includes at least one of the following: 1) subcarrier index or offset information of the DC located in at least one of the following: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; 2) default DC information, wherein the default DC information is used to determine the position of the DC or the default DC; 3) offset information between the DC and the default DC; 4) at least one of the following associated with the DC: BWP information, BWP group information, frequency domain unit information, and absolute frequency domain range; and 5) absolute frequency domain position of the DC.

[0251] The uplink DC position reporting device provided by the embodiments of the present application can be used in the case where the serving cell of the terminal includes multiple frequency bands. The terminal reports the subcarrier index or offset information of the DC, or reports the default DC information, or reports the offset information between the DC and the default DC, or reports the absolute frequency domain position of the DC, or reports the information associated with the DC, and the like, so that the network side device can obtain the position information of the DC, and further perform puncturing or rate matching processing in demodulation based on the position information of the DC, thereby improving the communication quality.

[0252] In one embodiment, the first information includes the subcarrier index of the DC located in the frequency band; wherein the subcarrier index starts from the starting reference point BRB0 of the frequency band, and is numbered according to the SCS of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC.

[0253] In one embodiment, the first information includes the subcarrier index of the DC located in the cell; wherein the subcarrier index starts from the starting common reference point CRB0 of the cell, and is numbered according to the SCS of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC.

[0254] In one embodiment, the first information comprises a subcarrier index where the DC is located in the BWP; wherein the subcarrier index is numbered from a starting reference point PRB0 of the BWP according to a SCS of the BWP.

[0255] In one embodiment, the first information comprises a subcarrier index where the DC is located in the frequency domain unit; wherein the subcarrier index is numbered from a starting reference point PRB0 of the frequency domain unit according to a SCS of the frequency domain unit.

[0256] In one embodiment, the first information comprises a subcarrier index where the DC is located in the BWP group; wherein the subcarrier index is numbered from a starting reference point PRB0 of the BWP group according to a reference SCS of the BWP group.

[0257] In one embodiment, the first information comprises offset information where the DC is located in the frequency band; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the frequency band.

[0258] In one embodiment, the first information comprises offset information where the DC is located in the cell; wherein the offset information is an offset between the DC and a starting common reference point CRB0 of the cell.

[0259] In one embodiment, the first information comprises offset information where the DC is located in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the BWP.

[0260] In one embodiment, the first information comprises offset information where the DC is located in the frequency domain unit; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the frequency domain unit.

[0261] In one embodiment, the apparatus further comprises a processing module configured to determine the location of the default DC based on the information of the default DC and at least one of:

[0262] 1) a configured BWP in a BWP group associated with the DC.

[0263] 2) an activated BWP in a BWP group associated with the DC.

[0264] 3) a configured frequency domain unit in a frequency domain unit group associated with the DC.

[0265] 4) an activated frequency domain unit in a frequency domain unit group associated with the DC.

[0266] In an embodiment, the apparatus further comprises a processing module configured to determine the offset information between the DC and the default DC based on at least one of:

[0267] 1) the number of offset subcarriers determined based on the minimum or maximum SCS in all BWPs configured in the BWP group associated with the DC.

[0268] 2) the number of offset subcarriers determined based on the SCS of the BWP with the lowest or highest frequency domain location in all BWPs configured in the BWP group associated with the DC.

[0269] 3) the number of offset subcarriers determined based on the minimum or maximum SCS in all frequency domain units configured in the frequency domain unit group associated with the DC.

[0270] 4) the number of offset subcarriers determined based on the SCS of the frequency domain unit with the lowest or highest frequency domain location in all frequency domain units configured in the frequency domain unit group associated with the DC.

[0271] 5) the absolute frequency domain width.

[0272] In an embodiment, the DC is located at a specific location in the overlapping BWP, or the DC overlaps with the downlink DC location of the terminal; wherein the uplink BWP or frequency domain unit and the downlink BWP or frequency domain unit configured for the terminal overlap to achieve full duplex, or both uplink and downlink transmissions are configured within the BWP or frequency domain unit configured for the terminal.

[0273] In an embodiment, the apparatus further comprises a sending module configured to send a reporting request, wherein the reporting request comprises at least one of:

[0274] 1) an indication that the location information of the DC needs to be reported.

[0275] 2) BWP information for which the location information of the DC needs to be reported.

[0276] 3) the BWP configured within a cell, a frequency band or a CC combination.

[0277] 4) the BWP combination for which the location information of the DC needs to be reported, in some examples, the BWP combination has the same meaning as the BWP group.

[0278] 5) the activation status of each BWP in the BWP combination, such as active or deactivated.

[0279] The uplink DC position indication apparatus provided by the embodiments of the present application can implement each process implemented by the method embodiments of FIGS. 2 to 8, and achieve the same technical effects. To avoid repetition, details are not described herein.

[0280] As shown in FIG. 11, the embodiments of the present application further provide a communication device 1100, which includes a processor 1101 and a memory 1102, and the memory 1102 stores programs or instructions executable on the processor 1101. For example, when the communication device 1100 is a terminal, the programs or instructions are executed by the processor 1101 to implement each step of the above uplink DC position indication method embodiments, and achieve the same technical effects. When the communication device 1100 is a network side device, the programs or instructions are executed by the processor 1101 to implement each step of the above uplink DC position indication method embodiments, and achieve the same technical effects. To avoid repetition, details are not described herein.

[0281] The embodiments of the present application further provide a terminal, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps in the method embodiments shown in FIG. 2. The terminal embodiments correspond to the above terminal side method embodiments, and each implementation process and implementation manner of the above method embodiments can be applied to the terminal embodiments, and achieve the same technical effects. The terminal can be the uplink DC position indication apparatus shown in FIG. 9. Specifically, FIG. 12 is a schematic diagram of a hardware structure of a terminal for implementing the embodiments of the present application.

[0282] The terminal 1200 includes, but is not limited to, at least part of the components such as a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, and a processor 1210.

[0283] Those skilled in the art can understand that the terminal 1200 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1210 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG. 12 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which are not described herein.

[0284] It should be understood that in the embodiments of the present application, the input unit 1204 can include a graphics processor 12041 and a microphone 12042, and the graphics processor 12041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1206 can include a display panel 12061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1207 includes at least one of a touch panel 12071 and other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 can include two parts of a touch detection device and a touch controller. The other input devices 12072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, and the like, which will not be described here.

[0285] In the embodiments of the present application, after the radio frequency unit 1201 receives the downlink data from the network side device, it can be transmitted to the processor 1210 for processing. In addition, the radio frequency unit 1201 can send uplink data to the network side device. Generally, the radio frequency unit 1201 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0286] The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 1209 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 1209 in the embodiments of the present application includes but is not limited to these and any other suitable type of memory.

[0287] The processor 1210 can include one or more processing units; optionally, the processor 1210 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1210.

[0288] The radio frequency unit 1201 is configured to send first information, wherein the first information is used to indicate position information of a DC, and the first information comprises at least one of the following: 1) a subcarrier index or offset information of the DC in at least one of the following: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; 2) default DC information used to determine the position of the DC or a default DC; 3) offset information between the DC and the default DC; 4) at least one of the following associated with the DC: BWP information, BWP group information, frequency domain unit information, and an absolute frequency domain range; and 5) an absolute frequency domain position of the DC.

[0289] In the embodiment of the present application, in the case that the serving cell of the terminal comprises multiple frequency bands, the terminal reports the subcarrier index or offset information of the DC, or reports the default DC information, or reports the offset information between the DC and the default DC, or reports the absolute frequency domain position of the DC, or reports information associated with the DC, and the like by sending the first information, so that the network side device can obtain the position information of the DC, and further perform puncturing or rate matching processing in demodulation based on the position information of the DC, thereby improving the communication quality.

[0290] It can be understood that the implementation processes of the implementation manners mentioned in the embodiment can refer to the related descriptions of the uplink DC position indication method embodiments, and achieve the same or corresponding technical effects. To avoid repetition, they will not be described here again.

[0291] The embodiment of the present application also provides a network side device comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps of the method embodiment shown in FIG. 8. The network side device embodiment corresponds to the network side device method embodiment described above, and each implementation process and implementation manner of the method embodiment described above can be applied to the network side device embodiment and achieve the same technical effects.

[0292] Specifically, the embodiment of the present application also provides a network side device, which can be the uplink DC position indication apparatus shown in FIG. 10. As shown in FIG. 13, the network side device 1300 comprises an antenna 131, a radio frequency device 132, a baseband device 133, a processor 134 and a memory 135. The antenna 131 is connected to the radio frequency device 132. In the uplink direction, the radio frequency device 132 receives information through the antenna 131 and sends the received information to the baseband device 133 for processing. In the downlink direction, the baseband device 133 processes the information to be sent and sends it to the radio frequency device 132, and the radio frequency device 132 processes the received information and sends it out through the antenna 131.

[0293] The method performed by the network side device in the above embodiments can be implemented in the baseband device 133, which includes a baseband processor.

[0294] The baseband device 133 may, for example, include at least one baseband board on which a plurality of chips are disposed, as shown in FIG. 13, one of which is a baseband processor, for example, which is connected with the memory 135 through a bus interface to invoke programs in the memory 135 to perform the operations of the network device shown in the above method embodiments.

[0295] The network side device may, for example, further include a network interface 136, which is a Common Public Radio Interface (CPRI), for example.

[0296] Specifically, the network side device 1300 of the embodiments of the present application further includes instructions or programs stored in the memory 135 and executable on the processor 134, which invokes the instructions or programs in the memory 135 to perform the method performed by the modules shown in FIG. 10 and achieve the same technical effects. To avoid repetition, the details are not described here.

[0297] The embodiments of the present application also provide a readable storage medium having programs or instructions stored thereon, which are executed by a processor to implement the various processes of the above uplink DC position indication method embodiments and achieve the same technical effects. To avoid repetition, the details are not described here.

[0298] The processor is the processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0299] The embodiments of the present application further provide a chip including a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to run programs or instructions to implement the various processes of the above uplink DC position indication method embodiments and achieve the same technical effects. To avoid repetition, the details are not described here.

[0300] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0301] The embodiment of the present application further provides a computer program / program product stored in a storage medium, which is executed by at least one processor to implement the processes of the above uplink DC position indication method embodiment, and can achieve the same technical effects. To avoid repetition, details are not described herein.

[0302] The embodiment of the present application further provides an uplink DC position indication system, comprising a terminal and a network side device, wherein the terminal can be used to execute the steps of the above uplink DC position indication method, and the network side device can be used to execute the steps of the above uplink DC position indication method.

[0303] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles, or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such processes, methods, articles, or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or device that includes the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to the order of performing functions as shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0304] From the above description of the embodiments, those skilled in the art can clearly understand that the above embodiment method can be realized by means of computer software product and general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.), which includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0305] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, which are only illustrative and not restrictive. Those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, and these embodiments all belong to the protection scope of the present application.

Claims

1. A method for indicating a DC location, comprising: a terminal sending first information, wherein the first information is used to indicate a DC location, and the first information comprises at least one of the following: a subcarrier index or offset information of the DC located in at least one of the following: a frequency band, a cell, a bandwidth part (BWP), a frequency domain unit, a BWP group; default DC information used to determine a location of the DC or a default DC; offset information between the DC and a default DC; at least one of the following associated with the DC: BWP information, BWP group information, frequency domain unit information, an absolute frequency domain range; an absolute frequency domain location of the DC. The terminal reports the location information of the DC based on at least one of the following: each configured BWP; each activated BWP; a switched BWP; a BWP indicated by a network side to report the location information of the DC; a frequency band combination supported by the terminal; a predefined rule. The first information comprises a subcarrier index of the DC located in the frequency band; wherein the subcarrier index starts from a starting reference point BRB0 of the frequency band, and is numbered according to a SCS of a BWP associated with the DC, or is numbered according to a reference SCS of a BWP group associated with the DC. The starting reference point BRB0 of the frequency band is indicated by a network side device. The first information comprises a subcarrier index of the DC located in the cell; wherein the subcarrier index starts from a starting common reference point CRB0 of the cell, and is numbered according to a SCS of a BWP associated with the DC, or is numbered according to a reference SCS of a BWP group associated with the DC. 6.The method of claim 1, wherein the first information comprises a subcarrier index of the DC located in the BWP; wherein the subcarrier index starts from a starting reference point PRB0 of the BWP, and is numbered according to a SCS of the BWP; or the first information comprises a subcarrier index of the DC located in the frequency domain unit; wherein the subcarrier index starts from a starting reference point PRB0 of the frequency domain unit, and is numbered according to a SCS of the frequency domain unit. 7.The method of claim 6, wherein the SCS of the BWP is determined according to at least one of the following: a maximum or minimum SCS in a frequency domain unit of the BWP; a SCS of a frequency domain unit with a lowest or highest frequency domain position of the BWP; the SCS of the frequency domain unit is determined according to at least one of the following: a maximum or minimum SCS in the frequency domain unit; a SCS corresponding to a position with a lowest or highest frequency domain position of the frequency domain unit.

2. The method of claim 1, wherein, 8.The method of claim 1, wherein the first information comprises a subcarrier index of the DC located in the BWP group; wherein the subcarrier index starts from a starting reference point PRB0 of the BWP group, and is numbered according to a reference SCS of the BWP group. The starting reference point PRB0 of the BWP group is a PRB with a lowest frequency domain position in the BWP group. ​ ​ ​ ​ ​ ​ 3. The method of claim 1, wherein, ​ ​ 4. The method of claim 3, wherein, ​ 5. The method of claim 1, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 9. The method of claim 8, wherein, ​ 10. The method of claim 1, wherein, the first information comprises offset information of the DC located in the frequency band; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the frequency band; or, the first information comprises offset information of the DC located in the cell; wherein the offset information is an offset between the DC and a starting common reference point CRB0 of the cell; or, the first information comprises offset information of the DC located in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the BWP; or, the first information comprises offset information of the DC located in the frequency domain unit; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the frequency domain unit.

11. The method of claim 10, wherein, a value of the offset information is determined based on one of: a number of offset subcarriers determined based on a SCS of a BWP associated with the DC; a number of offset subcarriers determined based on a reference SCS of a BWP group associated with the DC; an absolute frequency domain width.

12. The method of claim 3, 5, 8 or 11, wherein, the reference SCS of the BWP group is determined based on at least one of: a SCS of a BWP or a frequency domain unit at a lowest or highest frequency domain location within the BWP group; a maximum or minimum SCS within the BWP group; a SCS of a frequency domain unit at a lowest or highest frequency domain location within the BWP group; a maximum or minimum SCS in a frequency domain unit within the BWP group.

13. The method of claim 1, wherein, a location of the default DC is determined based on at least one of: a configured BWP in a BWP group associated with the DC; an activated BWP in a BWP group associated with the DC; a configured frequency domain unit in a frequency domain unit group associated with the DC; an activated frequency domain unit in a frequency domain unit group associated with the DC.

14. The method of claim 1, wherein, the offset information between the DC and the default DC is determined based on at least one of: a number of offset subcarriers determined based on a minimum or maximum SCS in all configured BWPs in a BWP group associated with the DC; a number of offset subcarriers determined based on a SCS of a BWP at a lowest or highest frequency domain location in all configured BWPs in a BWP group associated with the DC; a number of offset subcarriers determined based on a minimum or maximum SCS in all configured frequency domain units in a frequency domain unit group associated with the DC; a number of offset subcarriers determined based on a SCS of a frequency domain unit at a lowest or highest frequency domain location in all configured frequency domain units in a frequency domain unit group associated with the DC; an absolute frequency domain width.

15. The method of claim 1, wherein, the BWP group information is used to indicate at least one of: each BWP in a BWP group; a BWP at a lowest frequency domain location and a BWP at a highest frequency domain location in a BWP group.

16. The method of claim 15, wherein, SCSs of multiple BWPs in the BWP group are the same.

17. The method of claim 1, wherein, a location or a number of the DC in the BWP or the BWP group is related to at least one of: a radio frequency (RF) chain, a power amplifier (PA), a number of local oscillators (LOs).

18. The method of any one of claims 1 to 17, wherein, the method further comprises: the terminal puncturing, rate matching or modulating on a subcarrier where the DC is located.

19. The method of any of claims 1-18, wherein, the DC is located in a guard band; or, the DC does not overlap with a synchronization signal and physical broadcast channel block (SSB), a control resource set (CORESET), a sounding reference signal (SRS), or a demodulation reference signal (DMRS).

20. The method of claim 1, wherein, the DC is located at a specific location in an overlapping BWP, or the DC overlaps with a downlink DC location of the terminal; wherein an uplink BWP or frequency domain unit and a downlink BWP or frequency domain unit of the terminal are configured to overlap to enable full duplex, or both uplink and downlink transmissions are configured within a BWP or frequency domain unit of the terminal.

21. The method of claim 1, wherein, The method further comprises: the terminal receiving reporting request information, the reporting request information comprising at least one of: an indication that the location information of the DC needs to be reported; BWP information for which the location information of the DC needs to be reported; a BWP configured in a cell, a frequency band, or a carrier combination; a BWP combination for which the location information of the DC needs to be reported; an activation state of each BWP in a BWP combination.

22. An uplink DC location indication method, comprising: a network-side device receiving first information, the first information being used to indicate location information of a DC, the first information comprising at least one of: subcarrier index or offset information of the DC located in at least one of: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; default DC information used to determine the location of the DC or a default DC; offset information between the DC and a default DC; at least one of the following associated with the DC: BWP information, BWP group information, frequency domain unit information, absolute frequency domain range; an absolute frequency domain location of the DC.

23. The method of claim 22, wherein, the first information comprises subcarrier index of the DC located in the frequency band; wherein the subcarrier index starts from a starting reference point BRB0 of the frequency band, is numbered according to SCS of a BWP associated with the DC, or is numbered according to a reference SCS of a BWP group associated with the DC; or, the first information comprises subcarrier index of the DC located in the cell; wherein the subcarrier index starts from a starting common reference point CRB0 of the cell, is numbered according to SCS of a BWP associated with the DC, or is numbered according to a reference SCS of a BWP group associated with the DC; or, the first information comprises subcarrier index of the DC located in the BWP; wherein the subcarrier index starts from a starting reference point PRB0 of the BWP, is numbered according to SCS of the BWP; or, the first information comprises subcarrier index of the DC located in the frequency domain unit; wherein the subcarrier index starts from a starting reference point PRB0 of the frequency domain unit, is numbered according to SCS of the frequency domain unit; or, The first information includes a subcarrier index where the DC is located in the BWP group; wherein the subcarrier index is numbered according to a reference SCS of the BWP group, starting from a starting reference point PRB0 of the BWP group.

24. The method of claim 22, wherein, The first information includes offset information where the DC is located in the frequency band; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the frequency band; or, The first information includes offset information where the DC is located in the cell; wherein the offset information is an offset between the DC and a starting common reference point CRB0 of the cell; or, The first information includes offset information where the DC is located in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the BWP; or, The first information includes offset information where the DC is located in the frequency domain unit; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the frequency domain unit.

25. The method of claim 22, wherein, The method further includes determining the location of the default DC based on the information of the default DC and at least one of: a configured BWP in the BWP group associated with the DC; an activated BWP in the BWP group associated with the DC; a configured frequency domain unit in the frequency domain unit group associated with the DC; an activated frequency domain unit in the frequency domain unit group associated with the DC.

26. The method of claim 22, wherein, The method further includes determining the offset information between the DC and the default DC based on at least one of: an offset subcarrier number determined based on a minimum or maximum SCS in all configured BWPs in the BWP group associated with the DC; an offset subcarrier number determined based on an SCS of a BWP with a lowest or highest frequency domain position in all configured BWPs in the BWP group associated with the DC; an offset subcarrier number determined based on a minimum or maximum SCS in all configured frequency domain units in the frequency domain unit group associated with the DC; an offset subcarrier number determined based on an SCS of a frequency domain unit with a lowest or highest frequency domain position in all configured frequency domain units in the frequency domain unit group associated with the DC; an absolute frequency domain width.

27. The method of claim 22, wherein, the DC is located at a specific position in an overlapping BWP, or the DC overlaps with a downlink DC position of the terminal; wherein an uplink BWP or frequency domain unit and a downlink BWP or frequency domain unit configured for the terminal overlap to implement full duplex, or uplink and downlink transmissions are simultaneously configured in a BWP or frequency domain unit configured for the terminal.

28. The method of claim 22, wherein, The method further includes that the network side device sends a reporting request information, and the reporting request information includes at least one of: an indication that the location information of the DC needs to be reported; BWP information that the location information of the DC needs to be reported; a configured BWP in a cell, a frequency band, or a carrier combination; a BWP combination that the location information of the DC needs to be reported; an activation state of each BWP in a BWP combination.

29. An apparatus for uplink DC location indication, comprising: a sending module configured to send first information, the first information being used to indicate location information of a DC, the first information comprising at least one of: subcarrier index or offset information of the DC in at least one of: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; default DC information, the default DC information being used to determine the location of the DC or a default DC; offset information between the DC and a default DC; at least one of: BWP information, BWP group information, frequency domain unit information, absolute frequency domain range, associated with the DC; absolute frequency domain location of the DC.

30. The apparatus of claim 29, wherein, a processing module configured to report the location information of the DC based on at least one of: each configured BWP; each activated BWP; a BWP after switching; a BWP indicated by a network side to report the location information of the DC; a frequency band combination supported by the apparatus; a predefined rule.

31. The apparatus of claim 29, wherein: the first information comprises subcarrier index of the DC in the frequency band; wherein the subcarrier index starts from a starting reference point BRB0 of the frequency band, and is numbered according to SCS of a BWP associated with the DC, or is numbered according to reference SCS of a BWP group associated with the DC; or the first information comprises subcarrier index of the DC in the cell; wherein the subcarrier index starts from a starting common reference point CRB0 of the cell, and is numbered according to SCS of a BWP associated with the DC, or is numbered according to reference SCS of a BWP group associated with the DC; or the first information comprises subcarrier index of the DC in the BWP; wherein the subcarrier index starts from a starting reference point PRB0 of the BWP, and is numbered according to SCS of the BWP; or the first information comprises subcarrier index of the DC in the frequency domain unit; wherein the subcarrier index starts from a starting reference point PRB0 of the frequency domain unit, and is numbered according to SCS of the frequency domain unit; or the first information comprises subcarrier index of the DC in the BWP group; wherein the subcarrier index starts from a starting reference point PRB0 of the BWP group, and is numbered according to reference SCS of the BWP group.

32. The apparatus of claim 29, wherein: the first information comprises offset information of the DC in the frequency band; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the frequency band; or the first information comprises offset information of the DC in the cell; wherein the offset information is an offset between the DC and a starting common reference point CRB0 of the cell; or the first information comprises offset information of the DC in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the BWP; or the first information comprises offset information of the DC in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 in the BWP; or The first information includes offset information of the DC located in the frequency domain unit; wherein, the offset information is offset between the DC and a starting reference point BRB0 in the frequency domain unit.

33. The apparatus of claim 29, wherein, The receiving module is further configured to receive reporting request information, wherein the reporting request information includes at least one of the following: an indication that the location information of the DC needs to be reported; BWP information that the location information of the DC needs to be reported; a BWP configured in a cell, a frequency band, or a carrier combination; a BWP combination that the location information of the DC needs to be reported; an activation state of each BWP in a BWP combination.

34. An apparatus for indicating the location of an uplink DC, comprising: a receiving module configured to receive first information, wherein the first information is used to indicate the location information of the DC, and the first information includes at least one of the following: subcarrier index or offset information of the DC located in at least one of the following: a frequency band, a cell, a BWP, a frequency domain unit, a BWP group; default DC information used to determine the location of the DC or a default DC; offset information between the DC and a default DC; at least one of the following associated with the DC: BWP information, BWP group information, frequency domain unit information, and absolute frequency domain range; an absolute frequency domain location of the DC.

35. The apparatus of claim 34, wherein: the first information includes subcarrier index of the DC located in the frequency band; wherein, the subcarrier index starts from a starting reference point BRB0 of the frequency band, is numbered according to the SCS of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC; or the first information includes subcarrier index of the DC located in the cell; wherein, the subcarrier index starts from a starting common reference point CRB0 of the cell, is numbered according to the SCS of the BWP associated with the DC, or is numbered according to the reference SCS of the BWP group associated with the DC; or the first information includes subcarrier index of the DC located in the BWP; wherein, the subcarrier index starts from a starting reference point PRB0 of the BWP, and is numbered according to the SCS of the BWP; or the first information includes subcarrier index of the DC located in the frequency domain unit; wherein, the subcarrier index starts from a starting reference point PRB0 of the frequency domain unit, and is numbered according to the SCS of the frequency domain unit; or the first information includes subcarrier index of the DC located in the BWP group; wherein, the subcarrier index starts from a starting reference point PRB0 of the BWP group, and is numbered according to the reference SCS of the BWP group.

36. The apparatus of claim 34, wherein: the first information includes offset information of the DC located in the frequency band; wherein, the offset information is offset between the DC and a starting reference point BRB0 in the frequency band; or the first information includes offset information of the DC located in the frequency band; wherein, the offset information is offset between the DC and a starting reference point BRB0 in the frequency band; or The first information includes offset information of the DC located in the cell; wherein the offset information is an offset between the DC and a starting common reference point CRB0 of the cell; or, The first information includes offset information of the DC located in the BWP; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the BWP; or, The first information includes offset information of the DC located in the frequency domain unit; wherein the offset information is an offset between the DC and a starting reference point BRB0 within the frequency domain unit.

37. The apparatus of claim 34, wherein, Further comprising a sending module configured to send reporting request information, wherein the reporting request information includes at least one of the following: An indication that the location information of the DC needs to be reported; BWP information that the location information of the DC needs to be reported; A BWP configured within a cell, a frequency band, or a carrier combination; A BWP combination that the location information of the DC needs to be reported; Activation status of each BWP in the BWP combination. 38.A terminal comprising a processor and a memory, wherein the memory stores programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement steps of the method according to any one of claims 1 to 21. 39.A network side device comprising a processor and a memory, wherein the memory stores programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement steps of the method according to any one of claims 22 to 28. 40.A readable storage medium, wherein the readable storage medium stores programs or instructions, and the programs or instructions, when executed by a processor, implement the method according to any one of claims 1 to 21, or implement steps of the method according to any one of claims 22 to 28.

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