Communication method, terminal, network device and communication system

Abstract

The invention relates to a communication method, a terminal, network equipment and a communication system. The communication method comprises the following steps: a terminal determines a first symbol sequence, wherein the first symbol sequence comprises a UCI symbol sequence and a PUSCH data symbol sequence; and the terminal maps the first symbol sequence to a DD domain resource particle set allocated to the terminal. According to the embodiment of the invention, the UCI symbol sequence and the data symbol sequence are multiplexed, and the UCI symbol sequence and the data symbol sequence are mapped to the resource particles of the DD domain based on OTFS transmission.

Description

Communication method, terminal, network device and communication system Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, a terminal, a network device, and a communication system. Background Art

[0002] In high-speed mobility scenarios (such as high-speed rail), orthogonal frequency division multiplexing (OFDM) systems suffer from poor performance. This led to the development of orthogonal time-frequency space (OTFS). The OTFS system maps data symbols to resource elements (REs) in the delay-Doppler (DD) domain. Optimizing transmission in an OTFS system is a critical issue.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a communication system.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising:

[0006] The terminal determines a first symbol sequence, where the first symbol sequence includes an uplink control information (UCI) symbol sequence and a physical uplink shared channel (PUSCH) data symbol sequence;

[0007] The terminal maps the first symbol sequence to a set of DD domain resource elements allocated to the terminal.

[0008] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising:

[0009] The network device determines the set of DD domain resource particles allocated to the terminal;

[0010] The network device receives a first symbol sequence sent by the terminal on the DD domain resource element set, where the first symbol sequence includes a UCI symbol sequence and a PUSCH data symbol sequence.

[0011] According to a third aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0012] The processing module is configured to determine a first symbol sequence, where the first symbol sequence includes a UCI symbol sequence and a PUSCH data symbol sequence; and is configured to map the first symbol sequence to a set of DD domain resource elements allocated to the terminal.

[0013] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0014] A processing module configured to determine a set of DD domain resource particles allocated to the terminal;

[0015] The transceiver module is configured to receive a first symbol sequence sent by the terminal on the DD domain resource element set, where the first symbol sequence includes a UCI symbol sequence and a PUSCH data symbol sequence.

[0016] According to a fifth aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0017] one or more processors;

[0018] The terminal is used to execute the communication method proposed in the first aspect of the embodiment of this disclosure.

[0019] According to a sixth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0020] one or more processors;

[0021] The network device is used to execute the communication method proposed in the second aspect of the embodiment of the present disclosure.

[0022] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, which includes a terminal and a network device, wherein the terminal is configured to implement the communication method proposed in the first aspect of the embodiment of the present disclosure, and the network device is configured to implement the communication method proposed in the second aspect of the embodiment of the present disclosure.

[0023] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method proposed according to the first aspect or the second aspect of the embodiment of the present disclosure.

[0024] The embodiment of the present disclosure multiplexes a UCI symbol sequence and a data symbol sequence and maps the UCI symbol sequence and the data symbol sequence to resource elements in the DD domain, and transmits them based on OTFS. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0026] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0027] FIG2 is an exemplary schematic diagram of a signal transmission principle based on OTFS according to an embodiment of the present disclosure.

[0028] FIG3 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

[0029] FIG4A is an exemplary schematic diagram of a first mapping method provided according to an embodiment of the present disclosure.

[0030] FIG4B is an exemplary schematic diagram of a second mapping method provided according to an embodiment of the present disclosure.

[0031] FIG4C is an exemplary schematic diagram of a third mapping method provided according to an embodiment of the present disclosure.

[0032] FIG5A is a schematic diagram of an exemplary flow chart of a communication method provided according to an embodiment of the present disclosure.

[0033] FIG5B is a schematic diagram of an exemplary flow chart of a communication method provided according to an embodiment of the present disclosure.

[0034] FIG6A is a schematic diagram of an exemplary flow chart of a communication method provided according to an embodiment of the present disclosure.

[0035] FIG6B is a schematic diagram of an exemplary flow chart of a communication method provided according to an embodiment of the present disclosure.

[0036] FIG7A is an exemplary schematic diagram of the structure of a terminal provided according to an embodiment of the present disclosure.

[0037] FIG7B is an exemplary schematic diagram of the structure of a network device provided according to an embodiment of the present disclosure.

[0038] FIG8A is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0039] FIG8B is an exemplary schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a communication system.

[0041] In a first aspect, an embodiment of the present disclosure proposes a communication method, comprising: a terminal determining a first symbol sequence, the first symbol sequence including a UCI symbol sequence and a PUSCH data symbol sequence; the terminal mapping the first symbol sequence to a DD domain resource particle set allocated to the terminal.

[0042] In the above embodiment, the UCI symbol sequence and the data symbol sequence are multiplexed and mapped to resource elements in the DD domain, and transmitted based on OTFS.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the UCI symbol sequence is mapped to resource elements in the DD domain resource element set that are subject to a first degree of interference, and the PUSCH data symbol sequence is mapped to resource elements in the DD domain resource element set that are subject to a second degree of interference, and the first interference degree is less than the second interference degree.

[0044] In the above embodiment, the resource elements to which the UCI symbol sequence is mapped are subject to less interference than the resource elements to which the PUSCH data symbol sequence is mapped. For example, the UCI symbol sequence can be mapped to resource elements in the DD domain resource element set that are subject to less inter-symbol interference (ISI), while the PUSCH data symbol sequence can be mapped to resource elements in the DD domain resource element set that are subject to greater ISI. This can significantly reduce the ISI experienced by the UCI symbols, thereby effectively improving the reliability of UCI transmission.

[0045] In combination with some embodiments of the first aspect, in some embodiments, mapping the first symbol sequence to the DD domain resource particle set allocated to the terminal includes: mapping the first symbol sequence to the DD domain resource particle set according to a first mapping method; wherein, the first mapping method satisfies: the resource particle at the center position of the DD domain resource particle set is used as the first mapped resource particle; starting from the first mapped resource particle, mapping is performed sequentially from the inside to the outside in the DD domain resource particle set in a clockwise or counterclockwise direction.

[0046] In the above embodiment, when all resource particles around the above-mentioned DD domain resource particle set are used (such as allocated to other terminals), or in other cases where the first mapping method can be used for resource particle mapping, the first symbol sequence is mapped starting from the resource particle at the center position and gradually mapped to the resource particles at the edge from the inside to the outside. Therefore, the UCI symbol sequence can be mapped to the resource particles in the above-mentioned DD domain resource particle set that are subject to less ISI, and the PUSCH data symbol sequence can be mapped to the resource particles in the above-mentioned DD domain resource particle set that are subject to greater ISI. This can significantly reduce the ISI suffered by the UCI symbol, thereby effectively improving the reliability of UCI transmission.

[0047] In combination with some embodiments of the first aspect, in some embodiments, mapping the first symbol sequence to the DD domain resource particle set allocated to the terminal includes: mapping the first symbol sequence to the DD domain resource particle set according to a second mapping method; wherein, the second mapping method satisfies: for resource particles with the same delay value in the DD domain resource particle set, the resource particles on the corner are mapped before the resource particles on the edge, and the resource particles on the edge are mapped before the internal resource particles; the resource particles on the edge in the DD domain resource particle set with a delay value of the first delay value are mapped before the resource particles on the edge with a delay value of the second delay value, and the first delay value is less than the second delay value.

[0048] In the above embodiment, when the resource particles around the above-mentioned DD domain resource particle set are not used (such as not allocated to other terminals, or as reserved protection resource particles), or in other cases where the second mapping method can be used for resource particle mapping, the first symbol sequence is mapped one by one to the corners, edges, and resource particles from the outside to the inside of the above-mentioned DD domain resource particle set. Therefore, the UCI symbol sequence can be mapped to the resource particles in the above-mentioned DD domain resource particle set that are subject to less ISI, and the PUSCH data symbol sequence can be mapped to the resource particles in the above-mentioned DD domain resource particle set that are subject to greater ISI. This can greatly reduce the ISI suffered by the UCI symbol, thereby effectively improving the reliability of UCI transmission.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the resource particles on one side or multiple sides around the DD domain resource particle set are not used, and mapping the first symbol sequence to the DD domain resource particle set allocated to the terminal includes: mapping the first symbol sequence to the DD domain resource particle set according to a third mapping method; wherein the third mapping method satisfies: the resource particles on one side or multiple sides in the DD domain resource particle set are mapped before other resource particles, and the other resource particles are resource particles in the DD domain resource particle set except the resource particles on one side or multiple sides.

[0050] In the above embodiment, when the resource particles on one or more sides around the above-mentioned DD domain resource particle set are not used (such as not allocated to other terminals, or as reserved protection resource particles), or in other cases where the third mapping method can be used for resource particle mapping, the first symbol sequence is preferentially mapped to the resource particles on this side, so the UCI symbol sequence can be mapped to the resource particles with smaller ISI in the above-mentioned DD domain resource particle set, and the PUSCH data symbol sequence can be mapped to the resource particles with larger ISI in the above-mentioned DD domain resource particle set. This can greatly reduce the ISI suffered by the UCI symbol, thereby effectively improving the reliability of UCI transmission.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: the terminal acquiring first information, where the first information is used to indicate a mapping method of the first symbol sequence.

[0052] In the above embodiment, the terminal maps the first symbol sequence to the above-mentioned DD domain resource particle set according to the mapping method indicated by the first information. In some implementations, the network device notifies the terminal of the mapping method of the first symbol sequence through downlink control information (DCI). Dynamically indicating the mapping method through the network device is conducive to the terminal mapping the first symbol sequence to the DD domain resource particle set according to the optimal mapping method, thereby effectively improving the reliability of UCI transmission. For example, the network device allocates resources to different terminals respectively. When the resource particles around the DD domain resource particle set allocated to a certain terminal are allocated to other terminals, the network device sends a first information, and the first information is used to indicate the first mapping method, so that the terminal maps the UCI symbol sequence to the internal resource particles according to the first mapping method, and maps the PUSCH data symbol sequence to the edge resource particles, thereby effectively improving the reliability of UCI transmission.

[0053] In the second aspect, an embodiment of the present disclosure proposes a communication method, which includes: a network device determines a DD domain resource particle set allocated to a terminal; the network device receives a first symbol sequence sent by the terminal on the DD domain resource particle set, and the first symbol sequence includes a UCI symbol sequence and a PUSCH data symbol sequence.

[0054] In combination with some embodiments of the second aspect, in some embodiments, the UCI symbol sequence is mapped to resource elements in the DD domain resource element set that are subject to a first degree of interference, and the PUSCH data symbol sequence is mapped to resource elements in the DD domain resource element set that are subject to a second degree of interference, and the first degree of interference is less than the second degree of interference.

[0055] In combination with some embodiments of the second aspect, in some embodiments, the first symbol sequence is mapped by the terminal to the DD domain resource particle set according to a first mapping method; wherein, the first mapping method satisfies: the resource particle at the center position of the DD domain resource particle set is used as the first mapped resource particle; starting from the first mapped resource particle, the DD domain resource particle set is mapped sequentially from inside to outside in a clockwise or counterclockwise direction.

[0056] In combination with some embodiments of the second aspect, in some embodiments, the first symbol sequence is mapped by the terminal to the DD domain resource particle set according to a second mapping method; wherein, the second mapping method satisfies: for resource particles with the same delay value in the DD domain resource particle set, the resource particles on the corner are mapped before the resource particles on the edge, and the resource particles on the edge are mapped before the internal resource particles; the resource particles on the edge in the DD domain resource particle set with a delay value of the first delay value are mapped before the resource particles on the edge with a delay value of the second delay value, and the first delay value is less than the second delay value.

[0057] In combination with some embodiments of the second aspect, in some embodiments, the resource particles on one or more sides around the DD domain resource particle set are not used, and the first symbol sequence is mapped by the terminal to the DD domain resource particle set according to a third mapping method; wherein, the third mapping method satisfies: the resource particles on one or more sides in the DD domain resource particle set are mapped before other resource particles, and the other resource particles are resource particles in the DD domain resource particle set except the resource particles on one or more sides.

[0058] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: the network device sends first information to the terminal, where the first information is used to indicate a mapping method of the first symbol sequence.

[0059] In a third aspect, an embodiment of the present disclosure proposes a terminal, comprising: a processing module configured to determine a first symbol sequence, the first symbol sequence including a UCI symbol sequence and a PUSCH data symbol sequence; and configured to map the first symbol sequence to a set of DD domain resource particles allocated to the terminal.

[0060] In a fourth aspect, an embodiment of the present disclosure proposes a network device, comprising: a processing module, configured to determine a set of DD domain resource particles allocated to a terminal; a transceiver module, configured to receive a first symbol sequence sent by the terminal on the DD domain resource particle set, the first symbol sequence including a UCI symbol sequence and a PUSCH data symbol sequence.

[0061] In a fifth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the terminal is used to execute the method described in the first aspect and the optional implementation manner of the first aspect.

[0062] In a sixth aspect, an embodiment of the present disclosure proposes a network device, comprising: one or more processors; wherein the network device is used to execute the method described in the second aspect and the optional implementation manner of the second aspect.

[0063] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, which includes a terminal and a network device, wherein the terminal is configured to implement the method described in the first aspect and the optional implementation method of the first aspect, and the network device is configured to implement the method described in the second aspect and the optional implementation method of the second aspect.

[0064] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the method described in the first and second aspects, and the optional implementation of the first and second aspects.

[0065] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the first and second aspects, and the optional implementation methods of the first and second aspects.

[0066] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the methods described in the first and second aspects, and the optional implementations of the first and second aspects.

[0067] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in accordance with the first and second aspects, and the optional implementations of the first and second aspects.

[0068] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0069] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a communication system.

[0070] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0071] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0072] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0073] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0074] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0075] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0076] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0077] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0078] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0079] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0080] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0081] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0082] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0083] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0084] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0085] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0086] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0087] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0088] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0089] FIG1 is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0090] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0091] In some embodiments, the network device 102 includes, for example, an access network device. Optionally, the network device 102 also includes, for example, a core network device. The access network device is a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a NodeB (NB), a home nodeB (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a baseband unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system.

[0092] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0093] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0094] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0095] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0096] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0097] It is worth noting that the following embodiments of the present disclosure can be applied to orthogonal time frequency space (OTFS) systems.

[0098] OFDM is widely used in cellular mobile networks. Adding a cyclic prefix (CP) to OFDM systems effectively mitigates the impact of multipath delay. However, in high-speed mobile scenarios (such as high-speed rail), OFDM systems suffer from poor performance. To address this, OTFS was proposed.

[0099] To facilitate understanding, we first provide an exemplary explanation of the signal transmission principle based on OTFS. As shown in Figure 2, in an OTFS system, data symbols are first mapped to the grid points of a two-dimensional resource grid in the delay-Doppler (DD) domain, denoted as d[k,l]. Then, they are transformed to the grid points of a two-dimensional resource grid in the time-frequency (TF) domain, denoted as X[n,m], using an inverse symplectic finite Fourier transform (ISFFT). The TF domain symbols are then subjected to a Heisenberg transform, and the resulting time domain signal is denoted as s(t). When the shaping filter in the Heisenberg transform is a rectangular function, the Heisenberg transform degenerates into an inverse discrete Fourier transform (IDFT). After the OTFS time domain signal passes through the time-varying channel h(τ,ν), the receiver first performs a Wigner transform on the received signal r(t), converting it to the TF domain. The transformed signal is denoted as Y[n,m]. Finally, a symplectic finite Fourier transform (SFFT) is performed on it to restore it to the DD domain to obtain an estimate of the data symbol, denoted as d'[k,l]. For ease of description, the grid points of the two-dimensional resource grid in the DD domain and the TF domain are collectively referred to as resource elements (RE).

[0100] In the OTFS system, after the ISFFT transform, the data symbols on each resource element in the DD domain are spread across all resource elements in the TF domain. This means that they experience the same frequency selectivity and time diversity of all resource elements in the TF domain. Therefore, all data symbols in the DD domain can be well approximated as experiencing the same time-invariant channel. This property directly impacts the design of the reference signal for the OTFS system. Ideally, the symbols received by the receiver in the DD domain are equal to the two-dimensional circular convolution of the DD domain symbols transmitted by the DD domain channel h(τ,ν). Precisely because of this property, the OTFS system can equate a time-varying channel to a time-invariant channel in the DD domain, achieving full frequency and time diversity gains. This is why the OTFS system outperforms OFDM systems at high Doppler frequencies.

[0101] At the same time, due to the dispersion of the channel in the DD domain, the symbols on each DD domain resource element received by the receiver will be interfered with by the symbols on surrounding resource elements (especially its neighboring resource elements), which is called inter-symbol interference (ISI). This often requires nonlinear algorithms such as interference cancellation and / or message passing (MP) on the receiver side, making the receiver detection algorithm more complex. It is worth noting that, taking the receiving end as a UE as an example, this ISI exists not only between symbols on multiple DD domain resource elements allocated to the same UE, but also between symbols on adjacent DD domain resource elements allocated to different UEs.

[0102] If the data symbols of a UE (denoted as the target UE) are affected by the ISI of the data symbols of other UEs (denoted as the interfering UE), then the ISI between such UEs is more difficult to eliminate. Optionally, the resources allocated to the interfering UE and the resources allocated to the target UE are adjacent in the DD domain. Since the target UE does not know the modulation method used by the data symbols of the interfering UE, the soft symbol accuracy obtained by the target UE when detecting the symbols of the interfering UE is poor, so the accuracy and performance of interference cancellation are difficult to guarantee, especially when the data symbols of the interfering UE use high-order modulation methods. In contrast, if the ISI suffered by a symbol comes from symbols on other resource elements of the same UE, then this type of ISI can be eliminated by the above-mentioned nonlinear receiver algorithm and relatively good performance can be achieved. Therefore, among the DD domain resource elements allocated to a UE, the symbols on the edge resource elements are more susceptible to the ISI of other UEs, while the ISI suffered by the symbols on the non-edge resource elements mainly comes from the symbols on other resource elements of the same UE.

[0103] On the other hand, uplink control information (UCI) is typically used to transmit control information. For example, it may include UE HARQ feedback, scheduling requests (SR), and channel state information (CSI) feedback. It is usually carried by the physical uplink control channel (PUCCH) or the physical uplink shared channel (PUSCH). HARQ feedback can be an ACK or NACK. Relatively speaking, the content of UCI is often more important than the data payload. Therefore, the reliability of UCI needs to be further improved, especially when UCI is transmitted on the PUSCH.

[0104] In a simple implementation, no distinction is made between UCI and data payloads, and UCI symbols and data symbols are mapped individually to the DD-domain resource elements allocated to the target UE. This solution offers the advantage of simplicity and convenience, but statistically, the ISI intensity experienced by UCI symbols and data symbols is roughly the same. Consequently, the reliability of UCI symbols and data symbols is also roughly the same. In other words, UCI reliability is not improved.

[0105] FIG3 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0106] Step S3101: The network device sends first information to the terminal.

[0107] In some embodiments, the terminal receives first information.

[0108] In some embodiments, the first information is used to indicate a mapping method for the first symbol sequence. In some embodiments, terms such as mapping method, mapping mode, and mapping order can be used interchangeably. Optionally, the first symbol sequence includes a UCI symbol sequence and a PUSCH data symbol sequence. The UCI symbol sequence includes one or more UCI symbols. The PUSCH data symbol sequence includes one or more PUSCH data symbols. In some embodiments, in the first symbol sequence, the UCI symbol sequence is located before the PUSCH data symbol sequence, that is, the UCI symbol is mapped first.

[0109] In some embodiments, the first information is used by the terminal to map the first symbol sequence to a set of DD-domain resource elements allocated to the terminal.

[0110] In some embodiments, the name of the first information is not limited, and it can be, for example, "mapping method information", "mapping mode information", "mapping order information", "mapping indication information", etc.

[0111] In some embodiments, there may be one or more mapping modes for the first symbol sequence. The first information may indicate a mapping mode for the first symbol sequence. For ease of understanding, several possible mapping modes for the first symbol sequence are described below in conjunction with Figures 4A, 4B, and 4C.

[0112] For example, one mapping mode is a first mapping mode. For example, one mapping mode is a second mapping mode. For example, one mapping mode is a third mapping mode.

[0113] Mapping mode 1: First mapping mode

[0114] The first mapping method satisfies the following conditions: the resource particle at the center of the DD domain resource particle set is used as the first mapped resource particle; starting with the first mapped resource particle, mapping is performed sequentially from the inside out of the DD domain resource particle set in a clockwise or counterclockwise direction. In some embodiments, there may be N resource particles at the center of the DD domain resource particle set. These N resource particles are used as the first N mapped resource particles, and one of these N resource particles is used as the first mapped resource particle. N is an integer greater than or equal to 1.

[0115] FIG4A shows a possible implementation of the first mapping method. Referring to FIG4A , the vertical axis corresponds to the delay domain, and the horizontal axis corresponds to the Doppler domain. In the two-dimensional resource grid of the DD domain, each grid point represents a resource particle, and the number on each resource particle represents its mapping order. For example, "0" represents the first mapped resource particle. According to the first mapping method shown in FIG4A , the mapping order of the first symbol sequence is spiral on the two-dimensional resource grid. It can be understood that when the resource particles surrounding the above-mentioned DD domain resource particle set are all used (such as allocated to other terminals), the ISI received by the edge resource particles in the above-mentioned DD domain resource particle set mainly comes from the resource particles of other terminals, and the ISI received by the internal resource particles mainly comes from other adjacent resource particles. In this case, the ISI received by the edge resource particles is relatively large, and the ISI received by the internal resource particles is relatively small. According to the first mapping method shown in Figure 4A, the first symbol sequence is mapped starting from the central resource element and gradually mapped to the edge resource elements from the inside out. Therefore, the UCI symbol sequence can be mapped to the resource element with the lowest ISI in the DD domain resource element set, and the PUSCH data symbol sequence can be mapped to the resource element with the highest ISI in the DD domain resource element set. This can significantly reduce the ISI experienced by the UCI symbols, thereby effectively improving the reliability of UCI transmission.

[0116] In some embodiments, when all resource particles surrounding the above-mentioned DD domain resource particle set are in use (e.g., allocated to other terminals), or in other cases where the network device believes that the above-mentioned first mapping method can be used for resource particle mapping, the network device sends first information to the above-mentioned terminal, where the first information is used to indicate the first mapping method. The terminal receives the first information and maps the first symbol sequence to the above-mentioned DD domain resource particle set according to the first mapping method.

[0117] In some embodiments, the embodiments of the present disclosure do not limit the circumstances under which the terminal uses the first mapping method to perform resource particle mapping, or the circumstances under which the network device indicates the first mapping method.

[0118] It should be noted that the mapping order shown in Figure 4A is only a possible implementation of the first mapping method and does not constitute a limitation on the first mapping method. For example, the first mapping method may have other mapping orders, or the first mapping method may include multiple mapping orders.

[0119] Mapping method 2: Second mapping method

[0120] The second mapping method satisfies: for resource particles with the same delay value in the DD domain resource particle set, the resource particles on the corner (vertex) are mapped before the resource particles on the edge, and the resource particles on the edge are mapped before the internal resource particles; in the DD domain resource particle set, the resource particles on the edge with a delay value of the first delay value are mapped before the resource particles on the edge with a delay value of the second delay value, and the first delay value is less than the second delay value. In some embodiments, resource particles with the same delay value can be described as a row of resource particles on the two-dimensional resource grid of the DD domain, and resource particles with the same Doppler value can be described as a column of resource particles on the two-dimensional resource grid of the DD domain. In some embodiments, the terminal maps the first symbol sequence one by one to the corners, edges, and resource particles from the outside to the inside of the DD domain resource particle set allocated to the terminal.

[0121] FIG4B shows a possible implementation of the second mapping method. Referring to FIG4B , the delay domain is in the positive direction downward. It can be understood that when the resource particles surrounding the above-mentioned DD domain resource particle set are not used (such as not allocated to other terminals, or as reserved protection resource particles), the ISI suffered by each resource particle in the above-mentioned DD domain resource particle set mainly comes from other adjacent resource particles. For example, the symbol on the resource particle with a smaller delay value will interfere with the symbol on the resource particle with a larger delay value. For example, the symbol on resource particle "0" may interfere with the symbol on resource particle "14", and may even interfere with the symbol on resource particle "16". Similarly, the symbol on resource particle "14" may interfere with the symbol on resource particle "16", and may even interfere with the symbol on resource particle "18". In addition, each resource particle will also be interfered with by the symbols on other resource particles in the same row.

[0122] In the first row of resource particles, the ISI received by the two resource particles on the corners (vertices) basically comes from other resource particles in the same row, and the ISI received is the smallest. The ISI received by other resource particles in the first row is relatively small, and the closer to one of the vertices, the smaller the ISI received. The ISI received by the resource particles in the second row includes interference from symbols on other resource particles in the same row and interference from symbols on resource particles in the first row, and the ISI received is relatively large. According to the second mapping method shown in Figure 4B, the UCI symbol sequence can be mapped to the resource particles with smaller ISI in the above-mentioned DD domain resource particle set, and the PUSCH data symbol sequence can be mapped to the resource particles with larger ISI in the above-mentioned DD domain resource particle set. This can greatly reduce the ISI received by the UCI symbol, thereby effectively improving the reliability of UCI transmission.

[0123] In some embodiments, when resource particles surrounding the above-mentioned DD domain resource particle set are not used (such as not allocated to other terminals, or used as reserved protection resource particles), or in other cases where the network device believes that the above-mentioned second mapping method can be used for resource particle mapping, the network device sends first information to the above-mentioned terminal, where the first information is used to indicate the second mapping method. The terminal receives the first information and maps the first symbol sequence to the above-mentioned DD domain resource particle set according to the second mapping method.

[0124] In some embodiments, the embodiments of the present disclosure do not limit the circumstances under which the terminal uses the second mapping method to perform resource particle mapping, or the circumstances under which the network device indicates the second mapping method.

[0125] It should be noted that the mapping order shown in Figure 4B is only a possible implementation of the second mapping method and does not constitute a limitation on the second mapping method. For example, the second mapping method may have other mapping orders, or the second mapping method may include multiple mapping orders.

[0126] Mapping method 3: the third mapping method

[0127] The third mapping method satisfies: the resource particles on one or more sides of the DD domain resource particle set are mapped before other resource particles, and the other resource particles are resource particles in the DD domain resource particle set excluding the resource particles on the one or more sides. In some embodiments, the resource particles on one or more sides surrounding the DD domain resource particle set allocated to the terminal are not used. In some embodiments, when the resource particles on one or more sides surrounding the above-mentioned DD domain resource particle set are not used (such as not allocated to other terminals, or as reserved protection resource particles), the first symbol sequence is preferentially mapped to the resource particles on this side, and then mapped sequentially from the outside to the inside.

[0128] FIG4C shows a possible implementation of the third mapping method. Referring to FIG4C , the resource particles in the black portion are the DD domain resource particle set allocated to the terminal. The resource particle "P" corresponds to the pilot, and a protection resource particle is reserved between the resource particle "P" and the DD domain resource particle set allocated to the terminal. It can be understood that since the protection resource particle is reserved between the resource particle "P" and the DD domain resource particle set allocated to the terminal, the ISI experienced by the resource particles on one or more sides of the DD domain resource particle set close to the protection resource particle is relatively small. According to the third mapping method shown in FIG4C , the UCI symbol sequence can be mapped to the resource particles in the DD domain resource particle set that are subject to less ISI, and the PUSCH data symbol sequence can be mapped to the resource particles in the DD domain resource particle set that are subject to greater ISI. This can significantly reduce the ISI experienced by the UCI symbols, thereby effectively improving the reliability of UCI transmission.

[0129] In some embodiments, when resource particles on one or more sides surrounding the above-mentioned DD domain resource particle set are not used (e.g., not allocated to other terminals, or used as reserved protection resource particles), or when the network device believes that the third mapping method can be used for resource particle mapping, the network device sends first information to the above-mentioned terminal, where the first information is used to indicate the third mapping method. The terminal receives the third information and maps the first symbol sequence to the above-mentioned DD domain resource particle set according to the third mapping method.

[0130] In some embodiments, the embodiments of the present disclosure do not limit the circumstances under which the terminal uses the third mapping method to perform resource particle mapping, or the circumstances under which the network device indicates the third mapping method.

[0131] It should be noted that the mapping order shown in Figure 4C is only a possible implementation of the third mapping method and does not constitute a limitation on the third mapping method. For example, the third mapping method may have other mapping orders, or the third mapping method may include multiple mapping orders.

[0132] It should also be noted that the first mapping mode, the second mapping mode, and the third mapping mode described in the embodiments of the present disclosure are merely several possible mapping modes for the first symbol sequence and do not constitute a limitation on the mapping mode of the first symbol sequence. For example, the first symbol sequence may also have other mapping modes. In some embodiments, the mapping mode (or mapping order) of the first symbol sequence satisfies the requirement to map the resource particles with the smallest ISI in the set of DD domain resource particles allocated to the terminal to the resource particles with the largest ISI.

[0133] In some embodiments, a UCI symbol sequence is mapped to resource elements in a DD domain resource element set that are subject to a first interference level, and a PUSCH data symbol sequence is mapped to resource elements in the DD domain resource element set that are subject to a second interference level, where the first interference level is less than the second interference level. The interference level experienced by the resource elements in the DD domain resource element set is related to at least one of the length of the symbol sequence of the terminal (e.g., the length of the UCI symbol sequence and / or the length of the PUSCH data symbol sequence), the resource allocation of resource elements surrounding the DD domain resource element set (e.g., the allocation of adjacent DD domain resource elements to other terminals), the transmit power of the symbols of the other terminals, and the modulation order of the constellation modulation used for the symbols of the other terminals.

[0134] In some embodiments, the network device allocates resources to different terminals separately, determines a mapping mode corresponding to each terminal based on the set of DD domain resource particles allocated to each terminal, and notifies the corresponding terminal of the mapping mode via the first information. Dynamically indicating the mapping mode by the network device facilitates the terminal to map the first symbol sequence to the set of DD domain resource particles according to the optimal mapping mode, thereby effectively improving the reliability of UCI transmission.

[0135] In some embodiments, the first information is carried in at least one of the following:

[0136] Downlink control information (DCI);

[0137] Media access control (MAC) control element (CE);

[0138] Radio resource control (RRC).

[0139] In some embodiments, the terminal receives first signaling, where the first signaling includes first information. The first signaling may include at least one of DCI, MAC CE, and RRC.

[0140] In some embodiments, step S3101 is optional. For example, the first information may be specified by a communication protocol. In some implementations, the terminal may map the first symbol sequence to the above-mentioned set of DD domain resource elements according to a mapping method specified by the protocol or a default mapping method.

[0141] Step S3102: The terminal determines a first symbol sequence.

[0142] In some embodiments, in the first symbol sequence, the UCI symbol sequence precedes the PUSCH data symbol sequence. For example, the terminal inserts the UCI symbol sequence before the PUSCH data symbol sequence to obtain the first symbol sequence, and then maps the first symbol sequence one by one to the set of DD-domain resource elements allocated to the terminal.

[0143] Step S3103: The terminal maps the first symbol sequence to a set of DD domain resource elements allocated to the terminal.

[0144] In some embodiments, the terminal maps the first symbol sequence to a set of DD-domain resource elements allocated to the terminal according to a mapping method indicated by the first information, a mapping method specified by a protocol, or a default mapping method. In some embodiments, the UCI symbol sequence is mapped to resource elements in the set of DD-domain resource elements that are subject to a first interference level, and the PUSCH data symbol sequence is mapped to resource elements in the set of DD-domain resource elements that are subject to a second interference level, where the first interference level is less than the second interference level.

[0145] Optionally, the mapping method (or mapping order) of the first symbol sequence on the above-mentioned DD domain resource particle set satisfies the mapping from resource particles with smaller ISI in the above-mentioned DD domain resource particle set to resource particles with larger ISI. According to the above implementation, in the first symbol sequence, the UCI symbol sequence can be mapped to the resource particles with smaller ISI in the above-mentioned DD domain resource particle set, and the PUSCH data symbol sequence can be mapped to the resource particles with larger ISI in the above-mentioned DD domain resource particle set. This can significantly reduce the ISI experienced by the UCI symbol, thereby effectively improving the reliability of UCI transmission.

[0146] In some embodiments, the terminal maps the first symbol sequence to a set of DD domain resource particles allocated to the terminal according to one of a first mapping mode, a second mapping mode, and a third mapping mode. Optionally, the embodiments of the present disclosure do not limit possible mapping modes for the first symbol sequence. For example, the terminal may map the first symbol sequence to the above-mentioned set of DD domain resource particles according to other mapping modes.

[0147] In the above embodiment, the terminal multiplexes the UCI symbol sequence and the data symbol sequence and maps the UCI symbol sequence and the data symbol sequence to resource elements in the DD domain, and transmits them based on OTFS.

[0148] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codepoint", "bit", "data", and "chip" can be used interchangeably.

[0149] In some embodiments, the terms "uplink", "uplink", "physical uplink", etc. can be used interchangeably.

[0150] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0151] In some embodiments, the terms "physical uplink shared channel (PUSCH)", "UL data", etc. can be used interchangeably.

[0152] In some embodiments, terms such as "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

[0153] In some embodiments, "determine", "obtain", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0154] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0155] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0156] In some embodiments, terms such as "small", "smaller", "relatively smaller", "smaller" and the like can be used interchangeably, and terms such as "large", "larger", "relatively larger", "larger" and the like can be used interchangeably.

[0157] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3103. For example, step S3101 can be implemented as an independent embodiment, step S3102 can be implemented as an independent embodiment, step S3103 can be implemented as an independent embodiment, step S3101 + step S3103 can be implemented as an independent embodiment, and step S3102 + step S3103 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0158] In some embodiments, step S3101 and step S3102 may be executed in an interchanged order or simultaneously.

[0159] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0160] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0161] FIG5A is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5A , the embodiment of the present disclosure relates to a communication method, which is applied to a terminal. The method includes:

[0162] Step S5101: Obtain first information.

[0163] In some embodiments, the first information is used to indicate a mapping manner of the first symbol sequence.

[0164] In some embodiments, the first information is used by the terminal to map the first symbol sequence to a set of DD-domain resource elements allocated to the terminal.

[0165] In some embodiments, the name of the first information is not limited, and it can be, for example, "mapping method information", "mapping mode information", "mapping order information", "mapping indication information", etc.

[0166] In some embodiments, the terminal receives the first information sent by the network device, but is not limited thereto, and may also receive the first information sent by other entities.

[0167] In some embodiments, the terminal obtains first information specified by the protocol.

[0168] In some embodiments, the terminal obtains the first information from an upper layer(s).

[0169] In some embodiments, the first information is carried in at least one of the following: DCI; MAC CE; RRC.

[0170] The optional implementation of step S5101 can refer to the optional implementation of step S3101 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0171] In some embodiments, step S5101 is an optional step.

[0172] Step S5102: Determine a first symbol sequence.

[0173] The optional implementation of step S5102 can refer to the optional implementation of step S3102 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0174] In some embodiments, step S5101 and step S5102 may be executed in an interchanged order or simultaneously.

[0175] Step S5103: Map the first symbol sequence to a set of DD domain resource elements allocated to the terminal.

[0176] The optional implementation of step S5103 can refer to the optional implementation of step S3103 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0177] FIG5B is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5B , the embodiment of the present disclosure relates to a communication method, which is applied to a terminal. The method includes:

[0178] Step S5201: Determine a first symbol sequence.

[0179] The optional implementation of step S5201 can refer to the optional implementation of step S3102 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0180] Step S5202: Map the first symbol sequence to a set of DD domain resource elements allocated to the terminal.

[0181] In some embodiments, the terminal may map the first symbol sequence to a set of DD domain resource elements allocated to the terminal according to a mapping method specified by a protocol or a default mapping method.

[0182] The optional implementation of step S5202 can refer to the optional implementation of step S3103 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0183] FIG6A is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6A , the embodiment of the present disclosure relates to a communication method applied to a network device, and the method includes:

[0184] Step S6101: Determine a set of DD domain resource particles allocated to the terminal.

[0185] In some embodiments, the network device allocates a set of DD domain resource particles to the terminal.

[0186] Step S6102: Send the first information.

[0187] The optional implementation of step S6102 can refer to the optional implementation of step S3101 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0188] In some embodiments, step S6102 is an optional step.

[0189] In some embodiments, step S6101 and step S6102 may be executed in an interchanged order or simultaneously.

[0190] Step S6103: Receive a first symbol sequence sent on the DD domain resource element set.

[0191] In some embodiments, the first symbol sequence includes a UCI symbol sequence and a PUSCH data symbol sequence. The UCI symbol sequence includes one or more UCI symbols. The PUSCH data symbol sequence includes one or more PUSCH data symbols. The first symbol sequence is sent by the terminal by mapping the first symbol sequence to the aforementioned set of DD domain resource elements. In some embodiments, in the first symbol sequence, the UCI symbol sequence precedes the PUSCH data symbol sequence, i.e., the UCI symbol is mapped first.

[0192] In some embodiments, a UCI symbol sequence is mapped to resource elements in the DD domain resource element set that are subject to a first interference level, and a PUSCH data symbol sequence is mapped to resource elements in the DD domain resource element set that are subject to a second interference level, where the first interference level is less than the second interference level. Optionally, a UCI symbol sequence is mapped to resource elements in the DD domain resource element set that are subject to less ISI, and a PUSCH data symbol sequence is mapped to resource elements in the DD domain resource element set that are subject to greater ISI.

[0193] In some embodiments, the first symbol sequence is mapped to the above-mentioned DD domain resource element set by the terminal according to the mapping mode indicated by the first information, the mapping mode specified by the protocol, or the default mapping mode.

[0194] In some embodiments, the first symbol sequence is mapped by the terminal to the above-mentioned DD domain resource element set according to one of the first mapping mode, the second mapping mode and the third mapping mode.

[0195] In some embodiments, the first mapping method satisfies: the resource particle at the center position of the DD domain resource particle set is used as the first mapped resource particle; starting from the first mapped resource particle, it is mapped sequentially from the inside to the outside in the DD domain resource particle set in a clockwise or counterclockwise direction.

[0196] In some embodiments, the second mapping method satisfies: for resource particles with the same delay value in the DD domain resource particle set, the resource particles on the corner are mapped before the resource particles on the edge, and the resource particles on the edge are mapped before the internal resource particles; in the DD domain resource particle set, the resource particles on the edge with a delay value of the first delay value are mapped before the resource particles on the edge with a delay value of the second delay value, and the first delay value is less than the second delay value.

[0197] In some embodiments, the third mapping method satisfies: resource particles on one or more sides of the DD domain resource particle set are mapped before other resource particles, and the other resource particles are resource particles in the DD domain resource particle set except the resource particles on the one or more sides.

[0198] The optional implementation of step S6103 can refer to the optional implementation of step S3103 in Figure 3 and other related parts in the embodiment involved in Figure 3, which will not be repeated here.

[0199] FIG6B is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6B , the embodiment of the present disclosure relates to a communication method applied to a network device, and the method includes:

[0200] Step S6201: Determine a set of DD domain resource particles allocated to the terminal.

[0201] In some embodiments, the network device allocates a set of DD domain resource particles to the terminal.

[0202] Step S6202: Receive a first symbol sequence sent on the DD domain resource element set.

[0203] In some embodiments, the first symbol sequence is mapped by the terminal to the above-mentioned DD domain resource element set according to a mapping method specified by a protocol or a default mapping method.

[0204] Optional implementations of step S6202 may refer to step S3103 in FIG. 3 , optional implementations of step S6103 in FIG. 6A , and other related parts in the embodiments involved in FIG. 3 and FIG. 6A , which will not be described in detail here.

[0205] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0206] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided that includes units or modules for implementing each step performed by a network device in any of the above methods.

[0207] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0208] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0209] Figure 7A is a structural diagram of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 7A, the terminal 7100 may include: at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the processing module is used to determine a first symbol sequence. In some embodiments, the processing module is used to map the first symbol sequence to a set of DD domain resource particles allocated to the terminal. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving executed by the terminal in any of the above methods, which will not be repeated here. Optionally, the processing module is used to execute at least one of the other steps (such as step S3102, step S3103, but not limited to this) executed by the terminal in any of the above methods, which will not be repeated here.

[0210] Figure 7B is a structural diagram of the network device proposed in an embodiment of the present disclosure. As shown in Figure 7B, the network device 7200 may include: at least one of a transceiver module 7201, a processing module 7202, etc. In some embodiments, the processing module is used to determine the DD domain resource particle set allocated to the terminal. In some embodiments, the processing module is used to receive a first symbol sequence sent by the terminal on the DD domain resource particle set. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving executed by the network device in any of the above methods (for example, step S3101, but not limited to this), which will not be repeated here. Optionally, the processing module is used to execute at least one of the other steps executed by the network device in any of the above methods, which will not be repeated here.

[0211] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0212] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0213] Figure 8A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device), a terminal (e.g., a user equipment), a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0214] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0215] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0216] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S3101, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S3102, step S3103, but not limited thereto).

[0217] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0218] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0219] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the above communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0220] FIG8B is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present disclosure is not limited thereto.

[0221] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0222] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0223] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S3101, but not limited to this), and the processor 8201 performs at least one of the other steps (for example, step S3102, step S3103, but not limited to this).

[0224] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0225] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0226] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0227] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0228] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that, the method includes: a terminal determines a first symbol sequence, and the first symbol sequence includes an uplink control information (UCI) symbol sequence and a physical uplink shared channel (PUSCH) data symbol sequence; the terminal maps the first symbol sequence to a set of delay-Doppler (DD) domain resource particles allocated to the terminal.

2. The method according to claim 1, characterized in that, the UCI symbol sequence is mapped to the resource particles in the set of DD domain resource particles that are subject to a first interference level, and the PUSCH data symbol sequence is mapped to the resource particles in the set of DD domain resource particles that are subject to a second interference level, and the first interference level is less than the second interference level.

3. The method according to claim 1 or 2, characterized in that, the mapping of the first symbol sequence to the set of DD domain resource particles allocated to the terminal includes: mapping the first symbol sequence to the set of DD domain resource particles according to a first mapping method; wherein, the first mapping method satisfies: the resource particle at the center position of the set of DD domain resource particles is used as the first mapped resource particle; starting from the first mapped resource particle, mapping is sequentially performed from the inside to the outside in a clockwise or counterclockwise direction in the set of DD domain resource particles.

4. The method according to claim 1 or 2, characterized in that, the mapping of the first symbol sequence to the set of DD domain resource particles allocated to the terminal includes: mapping the first symbol sequence to the set of DD domain resource particles according to a second mapping method; wherein, the second mapping method satisfies: for the resource particles in the set of DD domain resource particles that have the same delay value, the resource particles at the corners are mapped earlier than the resource particles on the sides, and the resource particles on the sides are mapped earlier than the resource particles inside; the resource particles on the sides of the set of DD domain resource particles with a first delay value are mapped earlier than the resource particles on the sides with a second delay value, and the first delay value is less than the second delay value.

5. The method according to claim 1 or 2, characterized in that, the resource particles on one or more sides around the set of DD domain resource particles are not used, and the mapping of the first symbol sequence to the set of DD domain resource particles allocated to the terminal includes: mapping the first symbol sequence to the set of DD domain resource particles according to a third mapping method; wherein, the third mapping method satisfies: the resource particles on the one or more sides of the set of DD domain resource particles are mapped earlier than the other resource particles, and the other resource particles are the resource particles in the set of DD domain resource particles except the resource particles on the one or more sides.

6. The method according to any one of claims 1-5, characterized in that, the method further includes: the terminal obtains first information, and the first information is used to indicate the mapping method of the first symbol sequence.

7. A communication method, characterized in that, the method includes: a network device determines a set of DD domain resource particles allocated to a terminal; The network device receives a first symbol sequence sent by the terminal on the set of DD-domain resource particles, and the first symbol sequence includes a UCI symbol sequence and a PUSCH data symbol sequence.

8. The method according to claim 7, wherein, the UCI symbol sequence is mapped to the resource particles in the set of DD-domain resource particles that are subject to a first interference level, and the PUSCH data symbol sequence is mapped to the resource particles in the set of DD-domain resource particles that are subject to a second interference level, and the first interference level is less than the second interference level.

9. The method according to claim 7 or 8, wherein, the first symbol sequence is mapped by the terminal to the set of DD-domain resource particles according to a first mapping method; wherein, the first mapping method satisfies: the resource particle at the central position of the set of DD-domain resource particles is used as the first mapped resource particle; starting from the first mapped resource particle, mapping is sequentially performed from the inside to the outside in a clockwise or counterclockwise direction in the set of DD-domain resource particles.

10. The method according to claim 7 or 8, wherein, the first symbol sequence is mapped by the terminal to the set of DD-domain resource particles according to a second mapping method; wherein, the second mapping method satisfies: for the resource particles in the set of DD-domain resource particles that have the same delay value, the resource particles at the corners are mapped earlier than the resource particles on the sides, and the resource particles on the sides are mapped earlier than the resource particles inside; the resource particles on the sides of the set of DD-domain resource particles with a first delay value are mapped earlier than the resource particles on the sides with a second delay value, and the first delay value is less than the second delay value.

11. The method according to claim 7 or 8, wherein, the resource particles on one or more sides around the set of DD-domain resource particles are not used, and the first symbol sequence is mapped by the terminal to the set of DD-domain resource particles according to a third mapping method; wherein, the third mapping method satisfies: the resource particles on the one or more sides of the set of DD-domain resource particles are mapped earlier than the other resource particles, and the other resource particles are the resource particles in the set of DD-domain resource particles except for the resource particles on the one or more sides.

12. The method according to any one of claims 7-11, wherein, the method further includes: the network device sends first information to the terminal, and the first information is used to indicate the mapping method of the first symbol sequence.

13. A terminal, wherein, comprising: a processing module configured to determine a first symbol sequence, and the first symbol sequence includes a UCI symbol sequence and a PUSCH data symbol sequence; and configured to map the first symbol sequence to a set of DD-domain resource particles allocated to the terminal.

14. A network device, wherein, comprising: a processing module configured to determine a set of DD-domain resource particles allocated to a terminal; A transceiver module, configured to receive a first symbol sequence transmitted by the terminal on the DD-domain resource particle set, where the first symbol sequence includes a UCI symbol sequence and a PUSCH data symbol sequence.

15. A terminal, characterized in that it includes: one or more processors; wherein, the terminal is used to execute the communication method described in any one of claims 1 to 6.

16. A network device, characterized in that it includes: one or more processors; wherein, the network device is used to execute the communication method described in any one of claims 7 to 12.

17. A communication system, characterized in that the communication system includes a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of claims 1 to 6, and the network device is configured to implement the communication method described in any one of claims 7 to 12.

18. A storage medium storing instructions, characterized in that when the instructions run on a communication device, the communication device is caused to execute the communication method described in any one of claims 1 to 6 or any one of claims 7 to 12.

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