WO2025111891A1 - Communication method, apparatus, and system, and storage medium - Google Patents

Abstract

The present disclosure relates to a communication method, apparatus, and system, and a storage medium. The communication method comprises: a transmitting device determining a first DD domain resource allocated to a first receiving device; and transmitting a first symbol sequence on the basis of first average transmitting power, and transmitting a second symbol sequence on the basis of second average transmitting power, wherein the first symbol sequence comprises symbols mapped to a first resource element set of the first DD domain resource, the second symbol sequence comprises symbols mapped to a second resource element set of the first DD domain resource, and the first average transmitting power is less than the second average transmitting power. Embodiments of the present disclosure can effectively reduce or control inter-symbol interference between resources allocated to different receiving devices, and improve spectral efficiency.

Description

Communication method, device, system and storage medium Technical Field

The present disclosure relates to the field of communication technology, and in particular to a communication method, device, system and storage medium.

Background Art

In high-speed mobile scenarios (such as high-speed rail, etc.), the performance of orthogonal frequency division multiplexing (OFDM) systems is poor, so orthogonal time frequency space (OTFS) is proposed. The OTFS system maps data symbols to resource elements (RE) in the delay-Doppler (DD) domain. Due to the dispersion of the channel in the DD domain, the symbols on each DD domain RE received by the receiver will be interfered by the symbols on the surrounding REs (especially its adjacent REs), which is also called inter-symbol interference (ISI).

Summary of the invention

The embodiments of the present disclosure provide a communication method, device, system and storage medium.

According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, which is performed by a sending device. The method includes:

Determining a first DD domain resource allocated to a first receiving device;

Sending a first symbol sequence according to a first average transmission power, and sending a second symbol sequence according to a second average transmission power;

The first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resources, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resources, and the first average transmit power is less than the second average transmit power.

According to a second aspect of an embodiment of the present disclosure, a communication method is proposed, which is performed by a first receiving device. The method includes:

Determining the allocated first DD domain resources;

receiving a symbol sequence sent on the first DD domain resource, where the symbol sequence includes a first symbol sequence and a second symbol sequence;

The first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resources, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resources, the first symbol sequence is sent according to a first average transmit power, the second symbol sequence is sent according to a second average transmit power, and the first average transmit power is less than the second average transmit power.

According to a third aspect of an embodiment of the present disclosure, a communication device is provided, including:

A processing module, configured to determine a first DD domain resource allocated to a first receiving device;

a transceiver module, configured to send a first symbol sequence according to a first average transmission power, and send a second symbol sequence according to a second average transmission power;

The first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resources, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resources, and the first average transmit power is less than the second average transmit power.

According to a fourth aspect of an embodiment of the present disclosure, a communication device is provided, including:

A processing module, configured to determine the allocated first DD domain resources;

a transceiver module, configured to receive a symbol sequence sent on the first DD domain resource, where the symbol sequence includes a first symbol sequence and a second symbol sequence;

The first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resources, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resources, the first symbol sequence is sent according to a first average transmit power, the second symbol sequence is sent according to a second average transmit power, and the first average transmit power is less than the second average transmit power.

According to a fifth aspect of an embodiment of the present disclosure, a communication device is provided, including:

one or more processors;

The communication device is used to execute the communication method proposed according to the first aspect of the embodiment of the present disclosure.

According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided, including:

one or more processors;

The communication device is used to execute the communication method proposed according to the second aspect of the embodiment of the present disclosure.

According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a sending device and a receiving device, wherein the sending device is configured to implement the communication method proposed in the first aspect of the embodiment of the present disclosure, and the receiving device is configured to implement the communication method proposed in the second aspect of the embodiment of the present disclosure.

According to an eighth aspect of the embodiments of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the communication method as provided in the first aspect of the embodiments of the present disclosure, or The communication method proposed in the second aspect of the embodiment.

The embodiments of the present disclosure can effectively reduce or control the inter-symbol interference between resources allocated to different receiving devices, and improve the spectrum efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

FIG1B is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

FIG. 2 is an exemplary schematic diagram of a signal transmission principle based on OTFS provided according to an embodiment of the present disclosure.

FIG3 is an exemplary schematic diagram of protecting RE according to an embodiment of the present disclosure.

FIG. 4 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.

FIG5A is an exemplary schematic diagram of a first DD domain resource provided according to an embodiment of the present disclosure.

FIG5B is an exemplary schematic diagram of a first DD domain resource provided according to an embodiment of the present disclosure.

FIG5C is an exemplary schematic diagram of a first DD domain resource provided according to an embodiment of the present disclosure.

FIG5D is an exemplary schematic diagram of a first DD domain resource and a second DD domain resource provided according to an embodiment of the present disclosure.

FIG5E is an exemplary schematic diagram of a first DD domain resource and a second DD domain resource provided according to an embodiment of the present disclosure.

FIG6A is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure.

FIG6B is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure.

FIG6C is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure.

FIG6D is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure.

FIG6E is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure.

FIG. 7A is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure.

FIG. 7B is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure.

FIG. 7C is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure.

FIG. 7D is an exemplary schematic diagram of a communication method provided according to an embodiment of the present disclosure.

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

FIG8B is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

FIG. 9A is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

FIG. 9B is an exemplary schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

The embodiments of the present disclosure provide a communication method, device, system and storage medium.

In a first aspect, an embodiment of the present disclosure proposes a communication method, which is performed by a transmitting device, and the method includes: determining a first DD domain resource allocated to a first receiving device; sending a first symbol sequence according to a first average transmitting power, and sending a second symbol sequence according to a second average transmitting power; wherein the first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resource, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resource, and the first average transmitting power is less than the second average transmitting power.

In the above embodiment, when sending a symbol sequence, the transmitting device can use two or more average transmission powers for transmission, wherein a higher average transmission power is used for the symbols mapped on the second resource particle set to ensure the communication quality, and a lower average transmission power is used for the symbols mapped on the first resource particle set, which can reduce the inter-symbol interference of the symbols on its own resource particles to other receiving devices, as well as the inter-symbol interference of the symbols on its own resource particles from other receiving devices. Therefore, the embodiment of the present disclosure can effectively reduce or control the inter-symbol interference between resources allocated to different receiving devices, can effectively reduce the number of protected resource particles, and even completely avoid the use of protected resource particles, thereby improving spectrum efficiency.

In combination with some embodiments of the first aspect, in some embodiments, the first resource particle set includes all or part of the peripheral resource particles of the first DD domain resources.

In the above embodiment, the symbols on the resource elements at the edge position/near the edge position/periphery of the first DD domain resources are sent using a lower average transmission power, which can reduce the inter-symbol interference of the symbols on the edge resource elements to other receiving devices, and reduce the inter-symbol interference of the symbols on the edge resource elements from other receiving devices.

In combination with some embodiments of the first aspect, in some embodiments, the first DD domain resources also include at least one resource particle set located between the location of the first resource particle set and the location of the second resource particle set. According to the position of each resource particle set on the first DD domain resources, from the location of the second resource particle set to the location of the first resource particle set, the average transmission power corresponding to the symbols mapped on each resource particle set decreases.

In the above embodiment, the first DD domain resource may include two or more resource particle sets. When the first DD domain resource includes more than two resource particle sets, in addition to the first resource particle set and the second resource particle set, at least one resource particle set located between the two is also included, and the average transmission power corresponding to the symbols mapped on each resource particle set decreases. For example, the average transmission power corresponding to the symbols mapped on the internal second resource particle set, the average transmission power corresponding to the symbols mapped on the third resource particle set in the middle position, and the average transmission power corresponding to the symbols mapped on the outer (edge) first resource particle set decrease. In this way, it is easy to eliminate the inter-symbol interference from other receiving devices to the symbols on the edge resource particles and the intermediate resource particles, and at the same time, it can also guarantee the communication quality of the symbols on the intermediate resource particles to a certain extent.

In combination with some embodiments of the first aspect, in some embodiments, the method further includes: sending first information to the first receiving device, where the first information is used to indicate resource particle set information of the first DD domain resource.

In the above embodiment, the sending device may notify the first receiving device of the resource particle set information of the first DD domain resource, so that the first receiving device can receive the symbol sequence sent on the first DD domain resource according to the resource particle set information.

In combination with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following: the number of resource particle sets of the first DD domain resources; the continuous number of resource particles included in the delay domain by at least one resource particle set of the first DD domain resources; the continuous number of resource particles included in the Doppler domain by at least one resource particle set of the first DD domain resources.

In the above embodiment, the sending device may notify the first receiving device of at least one of the number of resource particle sets, the continuous number of resource particles included in the delay domain of at least one resource particle set, and the continuous number of resource particles included in the Doppler domain of at least one resource particle set. The continuous number of resource particles included in a resource particle set in the delay domain/Doppler domain may indicate the position of the resource particle set.

In combination with some embodiments of the first aspect, in some embodiments, the method also includes: sending second information to the first receiving device, the second information being used to indicate average transmit power information corresponding to symbols mapped on at least one resource particle set of the first DD domain resources.

In the above embodiment, the transmitting device can notify the first receiving device of the average transmission power information corresponding to the symbols mapped on at least one resource particle set, so that the first receiving device can detect the signal on the corresponding resource particle according to the average transmission power information, thereby obtaining data symbols and information.

In combination with some embodiments of the first aspect, in some embodiments, the second information includes at least one of the following: the average transmit power corresponding to the symbols mapped on at least one resource particle set of the first DD domain resources; the difference between the average transmit powers corresponding to the symbols mapped on two resource particle sets of the first DD domain resources; the ratio between the average transmit powers corresponding to the symbols mapped on two resource particle sets of the first DD domain resources.

In combination with some embodiments of the first aspect, in some embodiments, at least one of the following is agreed upon in the communication protocol: the average transmit power corresponding to the symbols mapped on at least one resource particle set of the first DD domain resources; the difference between the average transmit powers corresponding to the symbols mapped on two resource particle sets of the first DD domain resources; the ratio between the average transmit powers corresponding to the symbols mapped on two resource particle sets of the first DD domain resources.

In the above embodiment, at least one of the following may be specified in the protocol and/or indicated by the transmitting device: the average transmission power corresponding to the symbols mapped on any or specific one or more resource particle sets, the difference between the average transmission powers corresponding to the symbols mapped on any or specific two resource particle sets, and the ratio between the average transmission powers corresponding to the symbols mapped on any or specific two resource particle sets. In this way, it is convenient for the first receiving device to detect the signal on the corresponding resource particle according to the above information, thereby obtaining the data symbol and information.

In combination with some embodiments of the first aspect, in some embodiments, the method also includes: sending third information to the first receiving device, the third information being used to indicate a power ratio between a second receiving device and the first receiving device, the power ratio comprising a ratio between an average transmit power corresponding to a symbol mapped on a set of resource particles of a second DD domain resource and an average transmit power corresponding to a symbol mapped on a set of resource particles of the first DD domain resource, the second DD domain resource being a DD domain resource allocated to the second receiving device.

In the above embodiment, if the resources around the first DD domain resource are allocated to other receiving devices for use, for example, the second DD domain resource around the first DD domain resource is allocated to the second receiving device for use, the transmitting device can notify the first receiving device of the power ratio between the second receiving device and the first receiving device, so that the first receiving device can estimate the symbols on the resource particle set mapped to the second DD domain resource from the second receiving device according to the power ratio and eliminate the interference caused by them. Therefore, it is easy to eliminate the inter-symbol interference from other receiving devices.

In a second aspect, an embodiment of the present disclosure proposes a communication method, which is performed by a first receiving device, and the method includes: determining an allocated first DD domain resource; receiving a symbol sequence sent on the first DD domain resource, the symbol sequence including a first symbol sequence and a second symbol sequence; wherein the first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resource, and the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resource, the first symbol sequence is sent according to a first average transmission power, and the second symbol sequence is sent according to a second average transmission power, The first average transmit power is less than the second average transmit power.

In combination with some embodiments of the second aspect, in some embodiments, the first resource particle set includes all or part of the peripheral resource particles of the first DD domain resources.

In combination with some embodiments of the second aspect, in some embodiments, the first DD domain resources also include at least one resource particle set located between the location of the first resource particle set and the location of the second resource particle set. According to the position of each resource particle set on the first DD domain resources, from the location of the second resource particle set to the location of the first resource particle set, the average transmission power corresponding to the symbols mapped on each resource particle set decreases.

In combination with some embodiments of the second aspect, in some embodiments, the method also includes: receiving first information, wherein the first information is used to indicate resource particle set information of the first DD domain resource; the receiving of the symbol sequence sent on the first DD domain resource includes: receiving the symbol sequence sent on the first DD domain resource according to the first information.

In combination with some embodiments of the second aspect, in some embodiments, the first information includes at least one of the following: the number of resource particle sets of the first DD domain resources; the continuous number of resource particles included in the delay domain by at least one resource particle set of the first DD domain resources; the continuous number of resource particles included in the Doppler domain by at least one resource particle set of the first DD domain resources.

In combination with some embodiments of the second aspect, in some embodiments, the method also includes: receiving second information, wherein the second information is used to indicate average transmission power information corresponding to symbols mapped on at least one resource particle set of the first DD domain resources; receiving the symbol sequence sent on the first DD domain resources includes: receiving the symbol sequence sent on the first DD domain resources according to the second information.

In combination with some embodiments of the second aspect, in some embodiments, the second information includes at least one of the following: the average transmit power corresponding to the symbols mapped on at least one resource particle set of the first DD domain resources; the difference between the average transmit powers corresponding to the symbols mapped on two resource particle sets of the first DD domain resources; the ratio between the average transmit powers corresponding to the symbols mapped on two resource particle sets of the first DD domain resources.

In combination with some embodiments of the second aspect, in some embodiments, at least one of the following is agreed upon in the communication protocol: the average transmit power corresponding to the symbols mapped on at least one resource particle set of the first DD domain resources; the difference between the average transmit powers corresponding to the symbols mapped on two resource particle sets of the first DD domain resources; the ratio between the average transmit powers corresponding to the symbols mapped on two resource particle sets of the first DD domain resources.

In combination with some embodiments of the second aspect, in some embodiments, the method also includes: receiving third information, the third information is used to indicate the power ratio between the second receiving device and the first receiving device, the power ratio including the ratio between the average transmit power corresponding to the symbol mapped on a resource particle set of the second DD domain resources and the average transmit power corresponding to the symbol mapped on a resource particle set of the first DD domain resources, the second DD domain resources are DD domain resources allocated to the second receiving device; the receiving of the symbol sequence sent on the first DD domain resources includes: receiving the symbol sequence sent on the first DD domain resources according to the third information.

In the third aspect, an embodiment of the present disclosure proposes a communication device, comprising: a processing module, used to determine a first DD domain resource allocated to a first receiving device; a transceiver module, used to send a first symbol sequence according to a first average transmit power, and to send a second symbol sequence according to a second average transmit power; wherein the first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resource, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resource, and the first average transmit power is less than the second average transmit power.

In a fourth aspect, an embodiment of the present disclosure proposes a communication device, comprising: a processing module, used to determine the allocated first DD domain resources; a transceiver module, used to receive a symbol sequence sent on the first DD domain resources, the symbol sequence including a first symbol sequence and a second symbol sequence; wherein, the first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resources, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resources, the first symbol sequence is sent according to a first average transmission power, the second symbol sequence is sent according to a second average transmission power, and the first average transmission power is less than the second average transmission power.

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

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

In the seventh aspect, an embodiment of the present disclosure proposes a communication system, comprising a sending device and a receiving device, wherein the sending device is configured to implement the method described in the first aspect and the optional implementation method of the first aspect, and the receiving device is configured to implement the method described in the second aspect and the optional implementation method of the second aspect.

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 implementations of the first and second aspects.

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.

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 method described in the first and second aspects, and the optional implementations of the first and second aspects.

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

It is understandable that the above communication devices, communication systems, storage media, program products, computer programs, chips or chip systems are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods, which will not be repeated here.

The embodiments of the present disclosure provide a communication method, an apparatus, a system and a storage medium. In some embodiments, the terms such as communication method and power allocation method can be interchangeable.

The embodiments of the present disclosure are not exhaustive, but are only 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 of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

In each embodiment of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and/or descriptions between the embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment based on their internal logical relationships.

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.

In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", 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 after the article may be understood as a singular expression or a plural expression.

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

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

In some embodiments, "at least one of A and B", "A and/or B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include the following technical solutions according to 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); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.

In some embodiments, the recording method of "A or B" may include the following technical solutions according to 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). When there are more branches such as A, B, C, etc., the above is also similar.

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 restrictions on the position, order, priority, quantity or content of the description objects. The statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions 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", and the "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 the "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes may be the same or different. For example, if the description object is "device", then the "first device" and the "second device" may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" may be the same information or different information, and their contents may be the same or different.

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.

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.

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 lower 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", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

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

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

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 (radio base station)", "fixed station" and in some embodiments may also be understood as "node", "access point (access point)", "transmission point (TP)", "reception point (RP)", "transmission and/or reception point (transmission/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 (bandwidth part, BWP)", etc.

In some embodiments, the term "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal (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.

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

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

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

FIG1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1A , a communication system 110 includes a transmitting device 1101 and a receiving device 1102. The transmitting device 1101 may be referred to as a transmitting end. The transmitting device 1101 includes a transmitting antenna, which may send signals to the outside, such as sending communication signals and/or sensing signals. The receiving device 1102 may be referred to as a receiving end. The receiving device 1102 includes a receiving antenna, which may receive signals, such as receiving signals sent by the transmitting device 1101. In some embodiments, there may be one or more receiving devices 1102, for example, multiple receiving devices 1102 include a first receiving device and a second receiving device. Optionally, there may be inter-symbol interference (ISI) between the resources of the multiple receiving devices, the first receiving device may be any receiving device, and the second receiving device may be described as an interference device of the first receiving device.

Optionally, the sending device 1101 may be a terminal or a network device. Optionally, the receiving device 1102 may be a terminal or a network device. For example, the sending device 1101 is a terminal, and the receiving device 1102 is a network device. For another example, the sending device 1101 is a terminal, and the receiving device 1102 is another terminal. For another example, the sending device 1101 is a network device, and the receiving device 1102 is a terminal. For another example, the sending device 1101 is a network device, and the receiving device 1102 is another network device.

FIG1B is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1B , the communication system 120 includes a terminal 1201 and a network device 1202. The network device 1202 includes, for example, an access network device. In some embodiments, there may be one or more terminals 1201, for example, the multiple terminals 1201 include a first terminal and a second terminal. Optionally, there may be inter-symbol interference (ISI) between the resources of the multiple terminals, the first terminal may be any terminal, and the second terminal may be described as an interference terminal of the first terminal.

In some embodiments, the terminal 1201 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 (Pad), 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 (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 (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), and at least one of a wireless terminal device in a smart home (smart home), but is not limited to these.

In some embodiments, the access network device is, for example, a node or device that accesses the terminal 1201 to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, and a base in a 6G communication system. The invention relates to at least one of a base station, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solutions of the embodiments of the present disclosure may be applicable 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 may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

In some embodiments, the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit). The CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.

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. A person of ordinary skill in the art 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.

The following embodiments of the present disclosure may be applied to the communication system 110 shown in FIG. 1A or a part of the subject, and may be applied to the communication system 120 shown in FIG. 1B or a part of the subject, but are not limited thereto. The subjects shown in FIG. 1A and FIG. 1B are examples, and the communication system may include all or part of the subjects in FIG. 1A or FIG. 1B, and may also include other subjects other than FIG. 1A and FIG. 1B, and the number and form of each subject are arbitrary, and each subject may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.

The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, the fourth generation mobile communication system (4G), the fifth 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 ... The present invention relates to wireless communication systems such as LTE, Wi-Fi (X), 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) network, Device to Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle to Everything (V2X), systems using other communication methods, and next-generation systems expanded based on them. In addition, a combination of multiple systems (for example, a combination of LTE or LTE-A with 5G, etc.) may also be applied.

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

In cellular mobile networks, OFDM has been widely used. In OFDM systems, by adding a cyclic prefix (CP), the impact of multipath delay can be well resolved. However, in high-speed mobile scenarios (such as high-speed rail, etc.), the performance of OFDM systems is poor. For this reason, OTFS is proposed. In the communication system shown in FIG1A , the transmitting device 1101 may include an OTFS system signal/channel transmitter, and the receiving device 1102 may include an OTFS system signal/channel receiver.

For ease of understanding, the principle of signal transmission based on OTFS is first explained by way of example. As shown in Figure 2, in the OTFS system, first, the data symbols are mapped to the grid points of the two-dimensional resource grid in the delay-Doppler (DD) domain, denoted as d[k,l], and then transformed to the grid points of the two-dimensional resource grid in the time-frequency (TF) domain through the inverse symplectic finite Fourier transform (ISFFT), denoted as X[n,m]. The symbols in the TF domain are subjected to the Heisenberg transform, and the transformed time domain signal is denoted as s(t). When the shaping filter in the Heisenberg transform is a rectangular function, the Heisenberg transform will degenerate into the 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) to transform the signal to the TF domain. The transformed signal is recorded as Y[n,m]. Finally, it is restored to the DD domain by a symplectic finite Fourier transform (SFFT) to obtain an estimate of the data symbol, recorded as d’[k,l]. For the convenience 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).

In the OTFS system, after the ISFFT transformation, the data symbols on each RE in the DD domain are extended to all REs in the TF domain, that is, they equally experience the frequency selectivity and time diversity of all REs in the TF domain. Therefore, all data symbols in the DD domain can be well approximated as experiencing the same non-time-varying channel. This property directly affects the reference signal design of the OTFS system. Ideally, the symbol received by the receiver in the DD domain is equal to the two-dimensional circular convolution of the symbol in the DD domain of the transmitter and the channel h(τ,ν) in the DD domain. It is precisely because the OTFS system has the above properties that the time-varying channel can be equivalent to the non-time-varying channel in the DD domain to obtain the complete frequency and time diversity gain. The performance of the OTFS system is better than that of the OFDM system when the Doppler is large. At the same time, due to the dispersion of the channel in the DD domain, The symbols on each DD domain RE received by the receiver will be interfered by the symbols on the surrounding REs (especially its adjacent REs), 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 complicated.

It is worth noting that, taking the receiving end as UE as an example, the ISI exists not only between symbols on multiple DD domain REs allocated to the same UE, but also between symbols on adjacent DD domain REs allocated to different UEs. Among them, if the ISI received by a symbol comes from symbols on other REs of the same UE, then this type of ISI can be eliminated by the above-mentioned nonlinear algorithm and relatively good performance can be obtained. If a symbol receives ISI from other UEs, then this type of ISI between UEs is more difficult to eliminate. Moreover, among the DD domain REs allocated to a UE, symbols on edge REs are more susceptible to ISI from other UEs, and symbols on non-edge REs receive ISI mainly from symbols on other REs of the same UE.

In some embodiments, in order to avoid interference between symbols on DD domain REs of different UEs, guard REs can be reserved when mapping data symbols to DD domain REs. As shown in Figure 3, the DD domain resources allocated to UE1, UE2, and UE3 are PDSCH 1, PDSCH 2, and PDSCH 3, respectively. It can be seen from the figure that guard REs are reserved between DD domain resources allocated to different UEs. In some embodiments, no data symbols are mapped on the guard REs. This solution will lead to a waste of resources, thereby reducing the spectrum efficiency. Specifically, the spectrum efficiency depends on the size of the guard band (i.e., the number of guard REs).

In some embodiments, in order to eliminate interference between symbols on DD domain REs of different UEs, taking one UE as an example, when sending a symbol sequence, two or more average transmission powers can be used, one of the average transmission powers used is lower, or one of the average transmission powers used is lower than the other average transmission powers used.

FIG4 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a communication method, which can be applied to a communication system, wherein the communication system includes a sending device and a first receiving device. The method includes:

Step S4101: The sending device determines a first DD domain resource.

In some embodiments, the sending device may allocate DD domain resources to the receiving device. In this step, the sending device determines a first DD domain resource allocated to the first receiving device. Optionally, there may be multiple receiving devices, and the sending device may allocate DD domain resources to each receiving device. For example, the sending device also allocates DD domain resources to the second receiving device.

In some embodiments, the first DD domain resource may include two or more resource particle sets, and one resource particle set includes one or more resource particles on the first DD domain resource. For example, the first DD domain resource includes a first resource particle set and a second resource particle set. Optionally, in addition to the first resource particle set and the second resource particle set, the first DD domain resource may also include at least one resource particle set located between the position of the first resource particle set and the position of the second resource particle set. For example, the first DD domain resource includes a first resource particle set, a second resource particle set, and a third resource particle set, and the position of the third resource particle set on the first DD domain resource is between the position of the first resource particle set and the position of the second resource particle set. The embodiment of the present disclosure does not limit the number of resource particle sets that the first DD domain resource may include. For example, the first DD domain resource may include M resource particle sets, where M is a positive integer greater than or equal to 2.

Among them, the symbols mapped on a resource particle set correspond to an average transmission power, and the average transmission powers corresponding to the symbols mapped on different resource particle sets are different.

Different resource particle sets may be located at different positions on the first DD domain resource. In some embodiments, according to the position of each resource particle set on the first DD domain resource, from the position of the second resource particle set to the position of the first resource particle set, the average transmission power corresponding to the symbols mapped on each resource particle set decreases. In some embodiments, the first resource particle set is located at one or more edge positions of the first DD domain resource, that is, the first resource particle set includes all or part of the peripheral resource particles of the first DD domain resource. In some embodiments, the second resource particle set is located at the center of the first DD domain resource. Optionally, from the center position to the edge position of the first DD domain resource, the average transmission power corresponding to the symbols mapped on each resource particle set decreases.

In some embodiments, resource elements included in a resource element set are continuous (adjacent) in the delay domain and/or Doppler domain.

In some embodiments, a resource particle set can be described as a layer of resource particles. In some embodiments, the first resource particle set can be described as an outer layer (or outermost layer, peripheral, etc.) of resource particles, and the second resource particle set can be described as an inner layer (or innermost layer, internal, etc.) of resource particles. In some embodiments, the third resource particle set can be described as an intermediate layer (or sub-outer layer, sub-peripheral, etc.) of resource particles.

The resource particle sets on the first DD domain resources are exemplarily described below by taking the first DD domain resources including two resource particle sets and three resource particle sets as examples.

FIG5A is an exemplary schematic diagram of different resource particle sets on a first DD domain resource according to an embodiment of the present disclosure. As shown in FIG5A , the first DD domain resource includes two resource particle sets, which are the first resource particle set and the second resource particle set from the outside to the inside, wherein, according to the positions of the two resource particle sets on the first DD domain resource, the first resource particle set can be described as an outer layer (or outermost layer, peripheral, etc.) resource particle, and the second resource particle set can be described as an inner layer (or innermost layer, internal, etc.) resource particle. According to implementation methods 1 to 6 in FIG5A , the first resource particle set is located at one or more side edges of the first DD domain resource, that is, the first resource particle set includes some or all peripheral resource particles of the first DD domain resource; the second resource particle set The second resource particle set includes the remaining resource particles in the first DD domain resource except the first resource particle set. In some implementations, the second resource particle set is located at the center of the first DD domain resource. It should be noted that FIG5A only shows some but not all optional implementations when the first DD domain resource includes two resource particle sets, and the number of resource particles included in each resource particle set and the position on the first DD domain resource are not limited to those shown in FIG5A.

In some embodiments, the position of a resource particle set on the first DD domain resource can be represented based on the continuous number of resource particles included in the resource particle set in the delay domain and/or Doppler domain. As shown in FIG5B , the first resource particle set is located at the three-side edge position of the first DD domain resource, and its position on the first DD domain resource can be represented based on at least one of L1, L2, L3, L4 and L5. The second resource particle set is located at the remaining position of the first DD domain resource except the first resource particle set, and its position on the first DD domain resource can be represented based on at least one of L6 and L7.

In some embodiments, the position of each resource particle set on the first DD domain resource can be determined by the transmitting device according to the size of the inter-symbol interference (ISI) received by the first DD domain resource from other receiving devices (such as the second receiving device, etc.). The interference size depends on the delay spread and Doppler spread of the channel. Optionally, for symbols on resource particles on the first DD domain resource that are subject to smaller ISI from other receiving devices (such as resource particles at the center position/near the center position/inside the first DD domain resource), a higher average transmission power can be used for transmission, and for symbols on resource particles on the first DD domain resource that are subject to larger ISI from other receiving devices (such as resource particles at the edge position/near the edge position/periphery of the first DD domain resource), a lower average transmission power can be used for transmission.

Generally speaking, the ISI suffered by symbols on resource particles at the center/near the center/inside the first DD domain resource mainly comes from the symbols on its own adjacent resource particles, while the ISI suffered by symbols on resource particles at the edge/near the edge/periphery of the first DD domain resource mainly comes from the symbols on resource particles allocated to other receiving devices in the surrounding area. Therefore, the first resource particle set can be located at the edge/near the edge/periphery of the first DD domain resource to use a lower average transmission power to send the symbols mapped on the resource particles, thereby avoiding or eliminating ISI from other receiving devices.

Figure 5C is an exemplary schematic diagram of different resource particle sets on the first DD domain resource according to an embodiment of the present disclosure. As shown in Figure 5C, the first DD domain resource includes three resource particle sets, which are, from the outside to the inside, a first resource particle set, a third resource particle set, and a second resource particle set. According to the positions of the three resource particle sets on the first DD domain resource, the first resource particle set can be described as an outer layer (or outermost layer, or periphery, etc.) of resource particles, the third resource particle set can be described as an intermediate layer (or sub-outer layer, or sub-periphery, etc.) of resource particles, and the second resource particle set can be described as an inner layer (or innermost layer, or inner, etc.) of resource particles. According to implementations 1 to 7 in FIG. 5C , the first resource particle set is located at one or more edges of the first DD domain resource, that is, the first resource particle set includes some or all peripheral resource particles of the first DD domain resource; the third resource particle set is located between the first resource particle set and the second resource particle set of the first DD domain resource, or described as, the third resource particle set is located at one or more edges of the first remaining resource, the first remaining resource includes the remaining resource particles in the first DD domain resource except the first resource particle set, that is, the third resource particle set includes some or all peripheral resource particles of the first remaining resource; the second resource particle set includes the remaining resource particles in the first DD domain resource except the first resource particle set and the third resource particle set. It should be noted that FIG. 5C only shows some but not all optional implementations when the first DD domain resource includes three resource particle sets, and the number of resource particles included in each resource particle set and the position on the first DD domain resource are not limited to those shown in FIG. 5C .

As can be seen from the foregoing description, in some embodiments, for symbols on resource particles on the first DD domain resource that are subject to smaller ISI from other receiving devices, a higher average transmission power can be used for transmission; for symbols on resource particles on the first DD domain resource that are subject to slightly larger ISI from other receiving devices, a medium average transmission power can be used for transmission; for symbols on resource particles on the first DD domain resource that are subject to larger ISI from other receiving devices, a lower average transmission power can be used for transmission. Therefore, the first resource particle set can be located at the edge position/near the edge position/periphery of the first DD domain resource to use a lower average transmission power to transmit symbols mapped on the resource particles, and the third resource particle set can be located between the edge position and the center position of the first DD domain resource to use a medium average transmission power to transmit symbols mapped on the resource particles, thereby avoiding or eliminating ISI from other receiving devices.

According to the above implementation, on the one hand, the symbols on the resource particles at the center position/near the center position/inside the first DD domain resource are sent using a higher average transmission power to ensure communication quality, and on the other hand, the symbols on the resource particles at the edge position/near the edge position/periphery of the first DD domain resource are sent using a lower average transmission power, which can reduce the inter-symbol interference of the symbols on the edge resource particles to other receiving devices. Similarly, the symbols on the resource particles at the edge position/near the edge position/periphery of other receiving devices are also sent using a lower average transmission power, thereby reducing the inter-symbol interference of the symbols on the edge resource particles of the first DD domain resource from other receiving devices. In some implementations, the symbols on the resource particles between the edge position and the center position are sent using a medium average transmission power, which can reduce the inter-symbol interference of the symbols on these resource particles from other receiving devices.

It can be understood that, for the case where the first DD domain resource includes four or more resource particle sets, its optional implementation method can refer to the relevant descriptions of Figures 5A, 5B, and 5C. For example, the first DD domain resource also includes a fourth resource particle set, The four resource particle sets are located at one or more side edges of the second remaining resources. The second remaining resources include the remaining resource particles in the first DD domain resources except the first resource particle set and the third resource particle set, that is, the fourth resource particle set includes some or all peripheral resource particles of the second remaining resources; the second resource particle set includes the remaining resource particles in the first DD domain resources except the first resource particle set, the third resource particle set and the fourth resource particle set.

Step S4102: The sending device sends the first information.

In some embodiments, the first information is used to indicate resource particle set information of the first DD domain resource. Optionally, the first receiving device receives the first information, and receives a symbol sequence sent on the first DD domain resource according to the first information.

In some embodiments, the name of the first information is not limited, and it may be, for example, "resource information", "resource particle set information", "resource layering information", etc.

In some embodiments, the first information may include at least one of the following:

The number of resource particle sets of the first DD domain resources;

a continuous number of resource elements included in the delay domain by at least one resource element set of the first DD domain resources;

The at least one resource element set of the first DD domain resource includes a continuous number of resource elements in the Doppler domain.

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

Downlink Control Information (DCI);

Media Access Control (MAC) Control Element (CE);

Radio Resource Control (RRC);

Sidelink control information (SCI).

In some embodiments, the sending device sends the first information to the first receiving device via signaling. Optionally, the signaling may include at least one of the following:

Uu interface: DCI, MAC CE and RRC signaling;

PC5 interface: SCI and PC5RRC signaling.

In some embodiments, step S4102 is an optional step. For example, the first information may be specified by a communication protocol.

Step S4103: The sending device sends the second information.

In some embodiments, the second information is used to indicate the average transmit power information corresponding to the symbols mapped on at least one resource particle set of the first DD domain resource. It should be noted that the second information indicates the average transmit power information corresponding to the symbols mapped on at least one resource particle set, which can be an explicit and/or implicit indication. Optionally, the first receiving device receives the second information and receives the symbol sequence sent on the first DD domain resource according to the second information.

In some embodiments, the name of the second information is not limited, and it may be, for example, "power information", "power indication", etc.

In some embodiments, the second information may include at least one of the following:

an average transmit power corresponding to symbols mapped on at least one resource element set of the first DD domain resources;

The difference between the average transmit powers corresponding to the symbols mapped on the two resource element sets of the first DD domain resource;

The ratio between the average transmission powers respectively corresponding to the symbols mapped on the two resource element sets of the first DD domain resources.

In some embodiments, at least one of the following may be specified in the communication protocol:

an average transmit power corresponding to symbols mapped on at least one resource element set of the first DD domain resources;

The difference between the average transmit powers corresponding to the symbols mapped on the two resource element sets of the first DD domain resource;

The ratio between the average transmission powers respectively corresponding to the symbols mapped on the two resource element sets of the first DD domain resources.

It should be noted that, in some embodiments, the above-mentioned "at least one resource particle set" can be any one or more resource particle sets, or a specific one or more resource particle sets, and the above-mentioned "two resource particle sets" can be any two resource particle sets, or a specific two resource particle sets.

It should also be noted that the above-mentioned "difference" can be the difference (such as the unit is W, mw, etc.) of two linear power values (such as the unit is W, mw, etc.), or the difference (such as the unit is decibel (dB)) of two logarithmic power values (such as the unit is decibel watt (dBw), decibel milliwatt (dBmw), etc.). The above-mentioned "ratio" can be the linear value of the ratio of two power values (such as the unit is W, mw, etc.), or the logarithmic value (such as the unit is dB) of the ratio of two power values (such as the unit is W, mw, etc.).

Taking implementation mode 6 shown in FIG. 5A as an example, the first DD domain resource includes a first resource particle set (outermost resource particles) and a second resource particle set (innermost resource particles), then the second information may include at least one of the following, and/or, at least one of the following is specified in the protocol:

The average transmission power corresponding to the symbols mapped on the outermost resource element;

The average transmission power corresponding to the symbols mapped on the innermost resource element;

The difference between the average transmit power corresponding to the symbols mapped on the outermost resource element and the average transmit power corresponding to the symbols mapped on the innermost resource element;

The ratio between the average transmit power corresponding to the symbols mapped on the outermost resource elements and the average transmit power corresponding to the symbols mapped on the innermost resource elements.

Taking implementation manner 7 shown in FIG. 5C as an example, the first DD domain resource includes a first resource particle set (outermost resource particles), a third resource particle set (second outermost resource particles) and a second resource particle set (innermost resource particles), then the second information may include at least one of the following, and/or, at least one of the following is specified in the protocol:

The average transmission power corresponding to the symbols mapped on the outermost resource element;

The average transmission power corresponding to the symbols mapped on the sub-outer resource particles;

The average transmission power corresponding to the symbols mapped on the innermost resource element;

The difference between the average transmit power corresponding to the symbols mapped on the outermost resource particles and the average transmit power corresponding to the symbols mapped on the second outermost resource particles;

The difference between the average transmit power corresponding to the symbols mapped on the second outermost resource element and the average transmit power corresponding to the symbols mapped on the innermost resource element;

The difference between the average transmit power corresponding to the symbols mapped on the outermost resource element and the average transmit power corresponding to the symbols mapped on the innermost resource element;

The ratio between the average transmission power corresponding to the symbols mapped on the outermost resource particles and the average transmission power corresponding to the symbols mapped on the second outermost resource particles;

The ratio between the average transmission power corresponding to the symbols mapped on the second outermost resource element and the average transmission power corresponding to the symbols mapped on the innermost resource element;

The ratio between the average transmit power corresponding to the symbols mapped on the outermost resource elements and the average transmit power corresponding to the symbols mapped on the innermost resource elements.

For example, the average transmission power L ₁ corresponding to the symbols mapped on the outermost resource element may be specified in the protocol. Then, the average transmission power M ₁ corresponding to the symbols mapped on the second outermost resource element is indicated by the second information, and the average transmission power H ₁ corresponding to the symbols mapped on the innermost resource element is indicated. Alternatively, the average transmission power M ₁ corresponding to the symbols mapped on the second outermost resource element is indicated by the second information, and the ratio H ₁ /L ₁ between the average transmission power corresponding to the symbols mapped on the innermost resource element and the average transmission power corresponding to the symbols mapped on the outermost resource element is indicated.

In some embodiments, the second information may be carried in at least one of the following: DCI; MAC CE; RRC; SCI.

In some embodiments, the sending device sends the second information to the first receiving device via signaling. Optionally, the signaling may include at least one of the following:

Uu interface: DCI, MAC CE and RRC signaling;

PC5 interface: SCI and PC5RRC signaling.

In some embodiments, step S4103 is an optional step, that is, the transmitting device does not send the second information. Optionally, when the first receiving device does not receive the second information, the average transmission power corresponding to the symbols mapped on each resource element set can be determined according to the protocol specification or the default value.

Step S4104: The sending device sends the third information.

In some embodiments, the third information is used to indicate the power ratio between the second receiving device and the first receiving device. The power ratio includes the ratio between the average transmit power corresponding to the symbol mapped on a resource particle set of the second DD domain resource and the average transmit power corresponding to the symbol mapped on a resource particle set of the first DD domain resource, and the second DD domain resource is the DD domain resource allocated to the second receiving device. It should be noted that, in some embodiments, the above-mentioned "a resource particle set" can be an arbitrary or specific resource particle set.

Optionally, the first receiving device receives the third information, and receives the symbol sequence sent on the first DD domain resource according to the third information. For example, when the first receiving device detects the symbols on each resource particle set of the first DD domain resource, the first receiving device estimates the symbols on the resource particle set mapped to the second DD domain resource from the second receiving device according to the third information and eliminates the interference caused by them, so it is easy to eliminate the inter-symbol interference from other receiving devices.

In some embodiments, the name of the third information is not limited, and it may be, for example, "power information", "power indication", etc.

Figure 5D shows an exemplary schematic diagram of the first DD domain resources of the first receiving device and the second DD domain resources of the second receiving device. As shown in Figure 5D, the first DD domain resources include two resource particle sets (two layers of resource particles), and the second DD domain resources also include two resource particle sets (two layers of resource particles).

Assume that the average transmission power corresponding to the symbols mapped on the outermost resource element of the first DD domain resource is recorded as L ₁ , the average transmission power corresponding to the symbols mapped on the innermost resource element is recorded as H ₁ , the average transmission power corresponding to the symbols mapped on the outermost resource element of the second DD domain resource is recorded as L ₂ , and the average transmission power corresponding to the symbols mapped on the innermost resource element is recorded as H ₂ . In some embodiments, the third information may include at least one of the following:

The ratio between the average transmit power corresponding to the symbols mapped on the outermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the outermost resource element of the first DD domain resources, that is, L ₂ /L ₁ (or L ₁ /L ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the outermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the innermost resource element of the first DD domain resources, that is, L ₂ /H ₁ (or H ₁ /L ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the innermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the outermost resource element of the first DD domain resources, that is, H ₂ /L ₁ (or L ₁ /H ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the innermost resource element of the second DD domain resource and the average transmit power corresponding to the symbols mapped on the innermost resource element of the first DD domain resource is H ₂ /H ₁ (or H ₁ /H ₂ ).

Figure 5E shows an exemplary schematic diagram of the first DD domain resources of the first receiving device and the second DD domain resources of the second receiving device. As shown in Figure 5E, the first DD domain resources include three resource particle sets (three-layer resource particles), and the second DD domain resources also include three resource particle sets (three-layer resource particles).

Assume that the average transmit power corresponding to the symbols mapped on the outermost resource element of the first DD domain resource is recorded as L ₁ , the average transmit power corresponding to the symbols mapped on the second outermost resource element is recorded as M ₁ , and the average transmit power corresponding to the symbols mapped on the innermost resource element is recorded as H ₁ , and the average transmit power corresponding to the symbols mapped on the outermost resource element of the second DD domain resource is recorded as L ₂ , the average transmit power corresponding to the symbols mapped on the second outermost resource element is recorded as M ₂ , and the average transmit power corresponding to the symbols mapped on the innermost resource element is recorded as H ₂ . In some embodiments, the third information may include at least one of the following:

The ratio between the average transmit power corresponding to the symbols mapped on the outermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the outermost resource element of the first DD domain resources, that is, L ₂ /L ₁ (or L ₁ /L ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the outermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the second outermost resource element of the first DD domain resources, that is, L ₂ /M ₁ (or M ₁ /L ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the outermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the innermost resource element of the first DD domain resources, that is, L ₂ /H ₁ (or H ₁ /L ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the second outermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the outermost resource element of the first DD domain resources, that is, M ₂ /L ₁ (or L ₁ /M ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the second outermost resource elements of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the second outermost resource elements of the first DD domain resources, that is, M ₂ /M ₁ (or M ₁ /M ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the second outermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the innermost resource element of the first DD domain resources, that is, M ₂ /H ₁ (or H ₁ /M ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the innermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the outermost resource element of the first DD domain resources, that is, H ₂ /L ₁ (or L ₁ /H ₂ );

The ratio between the average transmit power corresponding to the symbols mapped on the innermost resource element of the second DD domain resources and the average transmit power corresponding to the symbols mapped on the second outermost resource element of the first DD domain resources, i.e. H ₂ /M ₁ (or M ₁ /H ₂ )

The ratio between the average transmit power corresponding to the symbols mapped on the innermost resource element of the second DD domain resource and the average transmit power corresponding to the symbols mapped on the innermost resource element of the first DD domain resource is H ₂ /H ₁ (or H ₁ /H ₂ ).

It should be noted that the number of resource element sets included in the DD domain resources allocated to different receiving devices may be different.

In some embodiments, the third information may be carried in at least one of the following: DCI; MAC CE; RRC; SCI.

In some embodiments, the sending device sends the third information to the first receiving device via signaling. Optionally, the signaling may include at least one of the following:

Uu interface: DCI, MAC CE and RRC signaling;

PC5 interface: SCI and PC5RRC signaling.

In some embodiments, step S4104 is an optional step. For example, if the resource elements around the first DD domain resource are not used (such as not allocated to other receiving devices, or used as protection resource elements), the sending device may not send the third information. The first receiving device receives the symbol sequence sent on the first DD domain resource according to the first information and/or the second information without receiving the third information.

Step S4105: The sending device sends a symbol sequence on the first DD domain resource.

The symbol sequence sent on the first DD domain resource includes a first symbol sequence and a second symbol sequence, the first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resource, and the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resource. The transmitting device sends the first symbol sequence according to the first average transmit power, and sends the second symbol sequence according to the second average transmit power, wherein the first average transmit power is less than the second average transmit power. Optionally, according to the foregoing description, the symbol sequence sent on the first DD domain resource may also include at least one symbol sequence other than the first symbol sequence and the second symbol sequence, for example, also includes a third symbol sequence, and the transmitting device sends the third symbol sequence according to the third average transmit power, wherein the second average transmit power, the third average transmit power, and the first average transmit power decrease. In the case where the first DD domain resource includes four or more resource particle sets, its optional implementation method can refer to the optional implementation method including two or three resource particle sets, which will not be repeated here.

In some embodiments, the first receiving device receives the symbol sequence sent on the first DD domain resource according to at least one of the first information, the second information and the third information.

In some embodiments, the step of the sending device sending the symbol sequence and the step of the first receiving device receiving the symbol sequence can refer to the relevant description of the OTFS system shown in FIG. 2 .

According to the above embodiment, when sending a symbol sequence, the transmitting device can use two or more average transmission powers for transmission, wherein a higher average transmission power is used for the symbols mapped on the second resource particle set to ensure the communication quality, and a lower average transmission power is used for the symbols mapped on the first resource particle set, which can reduce the inter-symbol interference of the symbols on its own resource particles to other receiving devices, as well as the inter-symbol interference of the symbols on its own resource particles from other receiving devices. Therefore, the embodiment of the present disclosure can effectively reduce or control the inter-symbol interference between resources allocated to different receiving devices, can effectively reduce the number of protected resource particles, and even completely avoid the use of protected resource particles, thereby improving spectrum efficiency.

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

In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable.

In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment (assignment)", "DL DCI", "uplink (UL) grant (grant)", "UL DCI" and so on can be used interchangeably.

In some embodiments, "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 high levels, obtaining by self-processing, autonomous implementation, etc.

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

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

The communication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4105. For example, step S4105 may be implemented as an independent embodiment, step S4101+step S4105 may be implemented as an independent embodiment, step S4102+step S4105 may be implemented as an independent embodiment, step S4103+step S4105 may be implemented as an independent embodiment, step S4104+step S4105 may be implemented as an independent embodiment, step S4101+step S4102+step S4105 may be implemented as an independent embodiment, step S4101+step S4103+step S4105 may be implemented as an independent embodiment. 4105 can be implemented as an independent embodiment, step S4101+step S4104+step S4105 can be implemented as an independent embodiment, step S4101+step S4102+step S4103+step S4105 can be implemented as an independent embodiment, step S4101+step S4102+step S4104+step S4105 can be implemented as an independent embodiment, step S4101+step S4103+step S4104+step S4105 can be implemented as an independent embodiment, but is not limited to this.

In some embodiments, step S4102 and step S4103 can be exchanged in order or executed simultaneously, step S4103 and step S4104 can be exchanged in order or executed simultaneously, step S4102 and step S4104 can be exchanged in order or executed simultaneously, step S4102 and step S4105 can be exchanged in order or executed simultaneously, step S4103 and step S4105 can be exchanged in order or executed simultaneously, step S4104 and step S4105 can be exchanged in order or executed simultaneously.

In some embodiments, step S4102, step S4103, and step S4104 are optional steps, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, reference may be made to other optional implementations recorded before or after the description corresponding to FIG. 4 .

FIG6A is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6A , the present disclosure embodiment relates to a communication method, which can be applied to a sending device, such as a network device. The method includes:

Step S6101: Determine a first DD domain resource.

The optional implementation of step S6101 can refer to the optional implementation of step S4101 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

Step S6102: Send the first information.

The optional implementation of step S6102 can refer to the optional implementation of step S4102 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

Step S6103: Send the second information.

The optional implementation of step S6103 can refer to the optional implementation of step S4103 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

Step S6104: Send the third information.

The optional implementation of step S6104 can refer to the optional implementation of step S4104 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

Step S6105: Send a symbol sequence on the first DD domain resource.

The symbol sequence sent on the first DD domain resource includes a first symbol sequence and a second symbol sequence, the first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resource, and the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resource. The transmitting device sends the first symbol sequence according to a first average transmit power, and sends the second symbol sequence according to a second average transmit power, wherein the first average transmit power is less than the second average transmit power.

The optional implementation of step S6105 can refer to the optional implementation of step S4105 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

The communication method involved in the embodiment of the present disclosure may include at least one of steps S6101 to S6105. For example, step S6105 can be implemented as an independent embodiment, step S6101+step S6105 can be implemented as an independent embodiment, step S6102+step S6105 can be implemented as an independent embodiment, step S6103+step S6105 can be implemented as an independent embodiment, step S6104+step S6105 can be implemented as an independent embodiment, step S6101+step S6102+step S6105 can be implemented as an independent embodiment, step S6101+step S6103+step S6105 can be implemented as an independent embodiment. 6105 can be implemented as an independent embodiment, step S6101+step S6104+step S6105 can be implemented as an independent embodiment, step S6101+step S6102+step S6103+step S6105 can be implemented as an independent embodiment, step S6101+step S6102+step S6104+step S6105 can be implemented as an independent embodiment, step S6101+step S6103+step S6104+step S6105 can be implemented as an independent embodiment, but is not limited to this.

In some embodiments, step S6102 and step S6103 can be exchanged in order or executed simultaneously, step S6103 and step S6104 can be exchanged in order or executed simultaneously, step S6102 and step S6104 can be exchanged in order or executed simultaneously, step S6102 and step S6105 can be exchanged in order or executed simultaneously, step S6103 and step S6105 can be exchanged in order or executed simultaneously, step S6104 and step S6105 can be exchanged in order or executed simultaneously.

In some embodiments, step S6102, step S6103, and step S6104 are optional steps, and one or more of these steps may be omitted or replaced in different embodiments.

FIG6B is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6B , the present disclosure embodiment relates to a communication method, which can be applied to a sending device, such as a network device. The method includes:

Step S6201: Determine a first DD domain resource.

The optional implementation of step S6201 can refer to the optional implementation of step S4101 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

Step S6202: Send a symbol sequence on the first DD domain resource.

The optional implementation of step S6202 can refer to the optional implementation of step S4105 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

FIG6C is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6B , the present disclosure embodiment relates to a communication method, which can be applied to a sending device, such as a network device. The method includes:

Step S6301, sending the first information.

The optional implementation of step S6301 can refer to the optional implementation of step S4102 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

FIG6D is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6B , the present disclosure embodiment relates to a communication method, which can be applied to a sending device, such as a network device. The method includes:

Step S6401, sending the second information.

The optional implementation of step S6401 can refer to the optional implementation of step S4103 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

FIG6E 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, which can be applied to a sending device, such as a network device. The method includes:

Step S6501, sending the third information.

The optional implementation of step S6501 can refer to the optional implementation of step S4104 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

It can be understood that the above-mentioned embodiments can be combined arbitrarily. For example, some or all of the steps in different embodiments can be combined arbitrarily. For example, some or all of the steps in the embodiments of Figures 6A, 6B, 6C, 6D, and 6E can be combined arbitrarily.

FIG7A is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG7A , the present disclosure embodiment relates to a communication method, which can be applied to a first receiving device, such as a terminal. The method includes:

Step S7101: Determine a first DD domain resource.

In some embodiments, the first receiving device determines a first DD domain resource allocated to the first receiving device by the transmitting device.

The optional implementation of step S7101 can refer to the optional implementation of step S4101 in FIG. 4 and the embodiment involved in FIG. 4. Other related parts will not be elaborated here.

Step S7102: Obtain first information.

In some embodiments, the first receiving device receives the first information sent by the sending device, but is not limited thereto and may also receive the first information sent by other entities.

In some embodiments, the first receiving device obtains first information specified by a protocol.

In some embodiments, the first receiving device obtains the first information from an upper layer(s).

In some embodiments, the first information is used to indicate resource particle set information of the first DD domain resource.

In some embodiments, the name of the first information is not limited, and it may be, for example, "resource information", "resource particle set information", "resource layering information", etc.

In some embodiments, the first information may include at least one of the following:

The number of resource particle sets of the first DD domain resources;

a continuous number of resource elements included in the delay domain by at least one resource element set of the first DD domain resources;

The at least one resource element set of the first DD domain resource includes a continuous number of resource elements in the Doppler domain.

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

In some embodiments, the first receiving device receives the first information via signaling. Optionally, the signaling may include at least one of the following:

Uu interface: DCI, MAC CE and RRC signaling;

PC5 interface: SCI and PC5RRC signaling.

In some embodiments, step S7102 is an optional step.

The optional implementation of step S7102 can refer to the optional implementation of step S4102 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

Step S7103: Obtain second information.

In some embodiments, the first receiving device receives the second information sent by the sending device, but is not limited thereto and may also receive the second information sent by other entities.

In some embodiments, the first receiving device obtains second information specified by the protocol.

In some embodiments, the first receiving device obtains the second information from an upper layer(s).

In some embodiments, the second information is used to indicate average transmit power information corresponding to symbols mapped on at least one resource particle set of the first DD domain resource. It should be noted that the second information indicates average transmit power information corresponding to symbols mapped on at least one resource particle set, which may be an explicit and/or implicit indication.

In some embodiments, the name of the second information is not limited, and it may be, for example, "power information", "power indication", etc.

In some embodiments, the second information may include at least one of the following:

an average transmit power corresponding to symbols mapped on at least one resource element set of the first DD domain resources;

The difference between the average transmit powers corresponding to the symbols mapped on the two resource element sets of the first DD domain resource;

The ratio between the average transmission powers respectively corresponding to the symbols mapped on the two resource element sets of the first DD domain resources.

It should be noted that, in some embodiments, the above-mentioned "at least one resource particle set" can be any one or more resource particle sets, or a specific one or more resource particle sets, and the above-mentioned "two resource particle sets" can be any two resource particle sets, or a specific two resource particle sets.

It should also be noted that the above-mentioned "difference" can be the difference (such as the unit is W, mw, etc.) of two linear power values (such as the unit is W, mw, etc.), or the difference (such as the unit is decibel (dB)) of two logarithmic power values (such as the unit is decibel watt (dBw), decibel milliwatt (dBmw), etc.). The above-mentioned "ratio" can be the linear value of the ratio of two power values (such as the unit is W, mw, etc.), or the logarithmic value (such as the unit is dB) of the ratio of two power values (such as the unit is W, mw, etc.).

In some embodiments, the second information is carried in at least one of the following: DCI; MAC CE; RRC; SCI.

In some embodiments, the first receiving device receives the second information via signaling. Optionally, the signaling may include at least one of the following:

Uu interface: DCI, MAC CE and RRC signaling;

PC5 interface: SCI and PC5RRC signaling.

In some embodiments, step S7103 is an optional step.

The optional implementation of step S7103 can refer to the optional implementation of step S4103 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

Step S7104: Obtain third information.

In some embodiments, the first receiving device receives the third information sent by the sending device, but is not limited thereto, and may also receive the third information sent by other entities.

In some embodiments, the first receiving device obtains third information specified by the protocol.

In some embodiments, the first receiving device obtains the third information from an upper layer(s).

In some embodiments, the third information is used to indicate the power ratio between the second receiving device and the first receiving device. The power ratio includes the ratio between the average transmit power corresponding to the symbol mapped on a resource particle set of the second DD domain resource and the average transmit power corresponding to the symbol mapped on a resource particle set of the first DD domain resource, and the second DD domain resource is the DD domain resource allocated to the second receiving device. It should be noted that, in some embodiments, the above-mentioned "a resource particle set" can be an arbitrary or specific resource particle set.

In some embodiments, the name of the third information is not limited, and it may be, for example, "power information", "power indication", etc.

In some embodiments, the third information may be carried in at least one of the following: DCI; MAC CE; RRC; SCI.

In some embodiments, the sending device sends the third information to the first receiving device via signaling. Optionally, the signaling may include at least one of the following:

Uu interface: DCI, MAC CE and RRC signaling;

PC5 interface: SCI and PC5RRC signaling.

The optional implementation of step S7104 can refer to the optional implementation of step S4104 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

In some embodiments, step S7104 is an optional step.

Step S7105: Receive a symbol sequence sent on a first DD domain resource.

In some embodiments, the first receiving device receives a symbol sequence sent on the first DD domain resource according to the first information. Optionally, the first receiving device detects a signal on each resource element in each resource element set of the first DD domain resource according to the resource element set information of each resource element set of the first DD domain resource, thereby obtaining data symbols and information.

In some embodiments, the first receiving device receives a symbol sequence sent on the first DD domain resource according to the second information. Optionally, the first receiving device detects a signal on each resource element in each resource element set of the first DD domain resource according to the average transmission power information of each resource element set of the first DD domain resource, thereby obtaining data symbols and information.

In some embodiments, the first receiving device receives a symbol sequence sent on the first DD domain resource according to the third information. Optionally, the first receiving device detects the signal on each resource particle in each resource particle set of the first DD domain resource according to the power ratio between the second receiving device and the first receiving device, thereby obtaining data symbols and information. Optionally, when the first receiving device detects the symbol on a resource particle set of the first DD domain resource, the symbol from the second receiving device mapped to a resource particle set of the second DD domain resource is estimated according to the power ratio and the interference caused is eliminated. The second DD domain resources are resources allocated to the second receiving device around the first DD domain resources.

In some embodiments, the first receiving device receives the symbol sequence sent on the first DD domain resource according to at least one of the first information, the second information and the third information.

The symbol sequence sent on the first DD domain resource includes a first symbol sequence and a second symbol sequence, the first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resource, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resource, the first symbol sequence is sent according to a first average transmit power, the second symbol sequence is sent according to a second average transmit power, and the first average transmit power is less than the second average transmit power.

Optionally, the symbol sequence sent on the first DD domain resource may also include at least one symbol sequence in addition to the first symbol sequence and the second symbol sequence, for example, a third symbol sequence, and the third symbol sequence is sent according to a third average transmit power, and the second average transmit power, the third average transmit power, and the first average transmit power decrease in descending order. In the case where the first DD domain resource includes four or more resource particle sets, its optional implementation method can refer to the optional implementation method including two or three resource particle sets, which will not be repeated here.

The optional implementation of step S7105 can refer to the optional implementation of step S4105 in FIG. 4 and other related parts in the embodiment involved in FIG. 4 , which will not be described in detail here.

The communication method involved in the embodiments of the present disclosure may include at least one of steps S7101 to S7105. For example, step S7105 can be implemented as an independent embodiment, step S7101+step S7105 can be implemented as an independent embodiment, step S7102+step S7105 can be implemented as an independent embodiment, step S7103+step S7105 can be implemented as an independent embodiment, step S7104+step S7105 can be implemented as an independent embodiment, step S7101+step S7102+step S7105 can be implemented as an independent embodiment, step S7101+step S7103+step S7105 can be implemented as an independent embodiment. 7105 can be implemented as an independent embodiment, step S7101+step S7104+step S7105 can be implemented as an independent embodiment, step S7101+step S7102+step S7103+step S7105 can be implemented as an independent embodiment, step S7101+step S7102+step S7104+step S7105 can be implemented as an independent embodiment, step S7101+step S7103+step S7104+step S7105 can be implemented as an independent embodiment, but is not limited to this.

In some embodiments, step S7102 and step S7103 can be exchanged in order or executed simultaneously, step S7103 and step S7104 can be exchanged in order or executed simultaneously, step S7102 and step S7104 can be exchanged in order or executed simultaneously, step S7102 and step S7105 can be exchanged in order or executed simultaneously, step S7103 and step S7105 can be exchanged in order or executed simultaneously, step S7104 and step S7105 can be exchanged in order or executed simultaneously.

In some embodiments, step S7102, step S7103, and step S7104 are optional steps, and one or more of these steps may be omitted or replaced in different embodiments.

FIG7B is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG7B , the embodiment of the present disclosure relates to a communication method, which can be applied to a first receiving device, such as a terminal. The method includes:

Step S7201, obtain first information.

The optional implementation of step S7201 can refer to step S4102 of FIG. 4 , the optional implementation of step S7102 of FIG. 7A , and other related parts in the embodiments involved in FIG. 4 and FIG. 7A , which will not be described in detail here.

Step S7202: Receive a symbol sequence sent on a first DD domain resource according to the first information.

The optional implementation of step S7202 can refer to step S4105 of FIG. 4 , the optional implementation of step S7105 of FIG. 7A , and other related parts in the embodiments involved in FIG. 4 and FIG. 7A , which will not be described in detail here.

FIG7C is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG7C , the present disclosure embodiment relates to a communication method, which can be applied to a first receiving device, such as a terminal. The method includes:

Step S7301, obtain the second information.

The optional implementation of step S7301 can refer to step S4103 of FIG. 4 , the optional implementation of step S7103 of FIG. 7A , and other related parts in the embodiments involved in FIG. 4 and FIG. 7A , which will not be described in detail here.

Step S7302: Receive a symbol sequence sent on a first DD domain resource according to the second information.

The optional implementation of step S7302 can refer to step S4105 of FIG. 4 , the optional implementation of step S7105 of FIG. 7A , and other related parts in the embodiments involved in FIG. 4 and FIG. 7A , which will not be described in detail here.

FIG7D is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG7D , the embodiment of the present disclosure relates to a communication method, which can be applied to a first receiving device, such as a terminal. The method includes:

Step S7401, obtain third information.

The optional implementation of step S7401 can refer to step S4104 of FIG. 4 , the optional implementation of step S7104 of FIG. 7A , and other related parts in the embodiments involved in FIG. 4 and FIG. 7A , which will not be described in detail here.

Step S7402: Receive a symbol sequence sent on a first DD domain resource according to third information.

The optional implementation of step S7402 can refer to step S4105 of FIG. 4 , the optional implementation of step S7105 of FIG. 7A , and other related parts in the embodiments involved in FIG. 4 and FIG. 7A , which will not be described in detail here.

It can be understood that the above-mentioned embodiments can be combined arbitrarily. For example, some or all of the steps in different embodiments can be combined arbitrarily. For example, some or all of the steps in the embodiments of Figures 7A, 7B, 7C, and 7D can be combined arbitrarily.

The following takes the sending device as a base station and the receiving device as a terminal as an example to illustrate the communication method of the embodiment of the present disclosure. Optionally, the number of receiving devices may be one or more, for example, the multiple receiving devices include a first terminal and a second terminal. The first terminal may be any terminal, and the second terminal is an interference terminal of the first terminal.

For any first terminal, the base station uses a first average transmission power for symbols mapped to resource elements at the edge, near the edge, or the periphery, and uses a second average transmission power for symbols mapped to resource elements at the center, near the center, or inside, within the DD domain resources (a set of resource elements, recorded as the first DD domain resources) allocated to the first terminal. The first average transmission power is less than the second average transmission power.

Optionally, the difference between the first average transmit power and the second average transmit power may be predetermined by a protocol, or may be notified to the first terminal by the base station through signaling.

Optionally, the ratio between the first average transmit power and the second average transmit power may be predetermined by a protocol, or may be notified to the first terminal by the base station through signaling.

Optionally, for a second terminal whose allocated DD domain resources (recorded as second DD domain resources) are closer to the first DD domain resources allocated to the first terminal, the second terminal will be interfered with by the channel or symbol from the first terminal, and the base station will notify the second terminal of the ratio between the first average transmit power (or second average transmit power) of the first terminal and the first average transmit power (or second average transmit power) of the second terminal through signaling. Similarly, the first terminal will also be interfered with by the channel or symbol from the second terminal, and the base station will notify the first terminal of the ratio between the first average transmit power (or second average transmit power) of the second terminal and the first average transmit power (or second average transmit power) of the first terminal through signaling.

Optionally, the above signaling can be at least one of RRC, PC5RRC, MAC CE, and SCI.

The following further describes this with reference to FIG. 5A , FIG. 5C , FIG. 5D , and FIG. 5E .

In conjunction with implementation mode 6 of FIG. 5A , the resource elements around the first DD domain resource are not used (such as not allocated to other terminals, or used as protection resource elements). As shown in the figure, the base station allocates 6x 8=48 DD domain resource elements to the first terminal. The base station uses a smaller average transmission power (denoted as L ₁ ) to send the symbols mapped to the outermost 24 resource elements, and uses a larger average transmission power (denoted as H ₁ ) to send the symbols mapped to the inner 24 resource elements. The base station notifies the first terminal of H ₁ /L ₁ through DCI signaling. On the receiving side, the first terminal detects the symbols on the outermost resource elements and the inner resource elements according to the received power indication H ₁ /L ₁ .

In conjunction with implementation mode 7 of FIG. 5C , resource elements around the first DD domain resource are not used (such as not allocated to other terminals, or used as protection resource elements). As shown in the figure, the base station allocates 6 x 8 = 48 DD domain resource elements to the first terminal. The base station uses a smaller average transmission power (denoted as L ₁ ) to send symbols mapped to the outermost 24 resource elements, uses a medium average transmission power (denoted as M ₁ ) to send symbols mapped to the second outermost 16 resource elements, and uses a larger average transmission power (denoted as H ₁ ) to send symbols mapped to the inner 8 resource elements. The base station notifies the first terminal of H ₁ /L ₁ and M ₁ /L ₁ through DCI signaling. On the receiving side, the first terminal detects symbols on the outermost resource elements, the second outermost resource elements, and the inner resource elements according to the received power indications H ₁ /L ₁ and M ₁ /L ₁ .

In conjunction with FIG5D, the second DD domain resources around the first DD domain resources are allocated to the second terminal. As shown in the figure, the base station allocates 6 x 8 = 48 DD domain resource elements to the first terminal and the second terminal respectively. For the first terminal, the base station uses a smaller average transmission power (denoted as L ₁ ) to send the symbols mapped to the outermost 24 resource elements, and uses a larger average transmission power (denoted as H ₁ ) to send the symbols mapped to the inner 24 resource elements. For the second terminal, the base station uses a smaller average transmission power (denoted as L ₂ ) to send the symbols mapped to the outermost 24 resource elements, and uses a larger average transmission power (denoted as H ₂ ) to send the symbols mapped to the inner 24 resource elements. The base station notifies the first terminal of H ₁ /L ₁ and L ₂ /L ₁ through DCI signaling, and notifies the second terminal of H ₂ /L ₂ and L ₁ /L ₂ through DCI signaling.

On the receiving side, when the first terminal detects the symbols on the outermost resource particles of the first DD domain resources, the symbols from the second terminal mapped to the outermost resource particles of the second DD domain resources are estimated according to the power indication L ₂ /L ₁ and the interference caused by them is eliminated, thereby completing the detection of the data symbols finally mapped to the outermost resource particles of the first DD domain resources. Similarly, when the second terminal detects the symbols on the outermost resource particles of the second DD domain resources, the symbols from the first terminal mapped to the outermost resource particles of the first DD domain resources are estimated according to the power indication L ₁ /L ₂ and the interference caused by them is eliminated, thereby completing the detection of the data symbols finally mapped to the outermost resource particles of the second DD domain resources.

In conjunction with FIG5E, the second DD domain resources around the first DD domain resources are allocated to the second terminal. As shown in the figure, the base station allocates 6x8=48 DD domain resource elements to the first terminal and the second terminal respectively. For the first terminal, the base station uses a smaller average transmission power (denoted as _L1 ) to send the symbols mapped to the outermost 24 resource elements, uses a medium average transmission power (denoted as _M1 ) to send the symbols mapped to the second outer 16 resource elements, and uses a larger average transmission power (denoted as _H1 ) to send the symbols mapped to the inner 8 resource elements. For the second terminal, the base station uses a smaller average transmission power (denoted as _L2 ) to send the symbols mapped to the outermost 24 resource elements, uses a medium average transmission power (denoted as M2) to send the symbols mapped to the second outer 16 resource elements, and uses a larger average transmission power (denoted as _H2 ) to send the symbols mapped to the inner ₈ resource elements. The base station notifies the first terminal of _H1 / _L1 , _M1 / _L1 , _L2 / _L1 , _M2 / _L1 through DCI signaling, and notifies the second terminal of _H2 / _L2 , _M2 /L2, _L1 / _{L2 , M1/L2 through DCI} signaling.

On the receiving side, when the first terminal detects the symbols on the outermost resource particles and the second-outer resource particles of the first DD domain resources, the first terminal estimates the symbols of the outermost resource particles mapped to the second DD domain resources from the second terminal according to the power indication L ₂ /L ₁ and eliminates the interference caused by them, and estimates the symbols of the second-outer resource particles mapped to the second DD domain resources from the second terminal according to the power indication M ₂ /L ₁ and eliminates the interference caused by them, thereby completing the detection of the data symbols finally mapped to the outermost resource particles and the second-outer resource particles of the first DD domain resources. Similarly, when the second terminal detects the symbols on the outermost resource particles and the second outermost resource particles of the second DD domain resources, the symbols from the first terminal mapped to the outermost resource particles of the first DD domain resources are estimated according to the power indication L ₁ /L ₂ and the interference caused by them is eliminated, and the symbols from the first terminal mapped to the second outermost resource particles of the first DD domain resources are estimated according to the power indication M ₁ /L ₂ and the interference caused by them is eliminated, thereby completing the detection of the data symbols on the outermost resource particles and the second outermost resource particles finally mapped to the second DD domain resources.

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

The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by a sending device (such as a network device) in any of the above methods. For another example, another device is also proposed, including a unit or module for implementing each step performed by a receiving device (such as a terminal) in any of the above methods.

It should be understood that the division of the units or modules in the above devices is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above devices, 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 inside 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 hardware circuits can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit; for example, in another implementation, the above hardware circuit can be implemented by a programmable logic device (PLD), with field programmable gate Taking 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 through a configuration file to realize the functions of some or all of the above units or modules. All units or modules of the above device can be implemented in the form of software called by the processor, or in the form of hardware circuits, or in part in the form of software called by the processor, and the rest in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capability. In one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as 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 to implement the hardware circuit configuration may 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 ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.

FIG8A is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure. As shown in FIG8A, the communication device 8100 may include: at least one of a transceiver module 8101, a processing module 8102, etc. In some embodiments, the processing module is used to determine a first DD domain resource allocated to a first receiving device. In some embodiments, the transceiver module is used to send a first symbol sequence according to a first average transmit power and to send a second symbol sequence according to a second average transmit power. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and/or receiving performed by the sending device in any of the above methods (for example, step S4102, step S4103, step S4104, step S4105, but not limited thereto), which will not be repeated here. Optionally, the processing module is used to perform at least one of the other steps (for example, step S4101, but not limited thereto) performed by the sending device in any of the above methods, which will not be repeated here.

Figure 8B is a schematic diagram of the structure of the communication device proposed in an embodiment of the present disclosure. As shown in Figure 8B, the communication device 8200 may include: at least one of a transceiver module 8201, a processing module 8202, etc. In some embodiments, the processing module is used to determine the allocated first DD domain resource. In some embodiments, the transceiver module is used to receive a symbol sequence sent on the first DD domain resource. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and/or receiving performed by the first receiving device 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 performed by the first receiving device in any of the above methods, which will not be repeated here.

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

In some embodiments, the processing module can be a module or 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 replaced with the processor.

9A is a schematic diagram of the structure of a communication device 9100 proposed in an embodiment of the present disclosure. The communication device 9100 may be a network device (e.g., an access network device, etc.), or a terminal (e.g., a user device, etc.), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. The communication device 9100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

As shown in FIG9A , the communication device 9100 includes one or more processors 9101. The processor 9101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may 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 a program, and process the data of the program. The communication device 9100 is used to execute any of the above methods.

In some embodiments, the communication device 9100 further includes one or more memories 9102 for storing instructions. Optionally, all or part of the memory 9102 may also be outside the communication device 9100.

In some embodiments, the communication device 9100 further includes one or more transceivers 9103. When the communication device 9100 includes one or more transceivers 9103, the transceiver 9103 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, step S4102, step S4103, step S4104, step S4105, but not limited thereto), and the processor 9101 performs at least one of the other steps (for example, step S4101, but not limited thereto).

In some embodiments, the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separate or integrated. Optionally, the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

In some embodiments, the communication device 9100 may include one or more interface circuits 9104. Optionally, the interface circuit 9104 is connected to the memory 9102, and the interface circuit 9104 may be used to receive signals from the memory 9102 or other devices, and may be used to send signals to the memory 9102 or other devices. For example, the interface circuit 9104 may read instructions stored in the memory 9102 and send the instructions to the memory 9102. Processor 9101.

The communication device 9100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 9100 described in the present disclosure is not limited thereto, and the structure of the communication device 9100 may not be limited by FIG. 9A. 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 and 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, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

9B is a schematic diagram of the structure of a chip 9200 provided in an embodiment of the present disclosure. In the case where the communication device 9100 may be a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 9200 shown in FIG. 9B , but the present disclosure is not limited thereto.

The chip 9200 includes one or more processors 9201, and the chip 9200 is used to execute any of the above methods.

In some embodiments, the chip 9200 further includes one or more interface circuits 9202. Optionally, the interface circuit 9202 is connected to the memory 9203. The interface circuit 9202 can be used to receive signals from the memory 9203 or other devices, and the interface circuit 9202 can be used to send signals to the memory 9203 or other devices. For example, the interface circuit 9202 can read instructions stored in the memory 9203 and send the instructions to the processor 9201.

In some embodiments, the interface circuit 9202 executes at least one of the communication steps such as sending and/or receiving in the above method (for example, step S4102, step S4103, step S4104, step S4105, but not limited to these), and the processor 9201 executes at least one of the other steps (for example, step S4101, but not limited to this).

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

In some embodiments, the chip 9200 further includes one or more memories 9203 for storing instructions. Optionally, all or part of the memory 9203 may be outside the chip 9200.

The present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 9100, the communication device 9100 executes 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 to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.

The present disclosure also proposes a program product, which, when executed by the communication device 9100, enables the communication device 9100 to execute any of the above methods. Optionally, the program product is a computer program product.

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

Claims (24)

A communication method, characterized in that it is executed by a sending device, and the method comprises: Determining a first delay Doppler DD domain resource allocated to a first receiving device; Sending a first symbol sequence according to a first average transmission power, and sending a second symbol sequence according to a second average transmission power; The first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resources, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resources, and the first average transmit power is less than the second average transmit power. The method according to claim 1 is characterized in that the first resource particle set includes all or part of the peripheral resource particles of the first DD domain resources. The method according to claim 1 or 2 is characterized in that the first DD domain resources also include at least one resource particle set located between the position of the first resource particle set and the position of the second resource particle set, and according to the position of each resource particle set on the first DD domain resources, from the position of the second resource particle set to the position of the first resource particle set, the average transmission power corresponding to the symbols mapped on each resource particle set decreases. The method according to any one of claims 1 to 3, characterized in that the method further comprises: Sending first information to the first receiving device, where the first information is used to indicate resource particle set information of the first DD domain resource. The method according to claim 4, wherein the first information includes at least one of the following: the number of resource element sets of the first DD domain resources; a continuous number of resource elements included in the delay domain by at least one resource element set of the first DD domain resources; The at least one resource element set of the first DD domain resources includes a continuous number of resource elements in the Doppler domain. The method according to any one of claims 1 to 5, characterized in that the method further comprises: Send second information to the first receiving device, where the second information is used to indicate average transmission power information corresponding to symbols mapped on at least one resource element set of the first DD domain resources. The method according to claim 6, wherein the second information includes at least one of the following: an average transmit power corresponding to symbols mapped on at least one resource element set of the first DD domain resources; A difference between average transmit powers corresponding to symbols mapped on two resource element sets of the first DD domain resources; The ratio between the average transmission powers corresponding to the symbols mapped on the two resource element sets of the first DD domain resources. The method according to any one of claims 1 to 7, characterized in that at least one of the following is agreed upon in the communication protocol: an average transmit power corresponding to symbols mapped on at least one resource element set of the first DD domain resources; A difference between average transmit powers corresponding to symbols mapped on two resource element sets of the first DD domain resources; The ratio between the average transmission powers corresponding to the symbols mapped on the two resource element sets of the first DD domain resources. The method according to any one of claims 1 to 8, characterized in that the method further comprises: Send third information to the first receiving device, where the third information is used to indicate a power ratio between a second receiving device and the first receiving device, where the power ratio includes a ratio between an average transmit power corresponding to a symbol mapped on a set of resource particles of a second DD domain resource and an average transmit power corresponding to a symbol mapped on a set of resource particles of the first DD domain resource, where the second DD domain resource is a DD domain resource allocated to the second receiving device. A communication method, characterized in that it is performed by a first receiving device, and the method comprises: Determining the allocated first DD domain resources; receiving a symbol sequence sent on the first DD domain resource, where the symbol sequence includes a first symbol sequence and a second symbol sequence; The first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resources, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resources, the first symbol sequence is sent according to a first average transmit power, the second symbol sequence is sent according to a second average transmit power, and the first average transmit power is less than the second average transmit power. The method according to claim 10 is characterized in that the first resource particle set includes all or part of the peripheral resource particles of the first DD domain resources. The method according to claim 10 or 11 is characterized in that the first DD domain resources also include at least one resource particle set located between the position of the first resource particle set and the position of the second resource particle set, and according to the position of each resource particle set on the first DD domain resources, from the position of the second resource particle set to the position of the first resource particle set, the average transmission power corresponding to the symbols mapped on each resource particle set decreases. The method according to any one of claims 10 to 12, characterized in that the method further comprises: receiving first information, where the first information is used to indicate resource particle set information of the first DD domain resource; The receiving a symbol sequence sent on the first DD domain resource includes: A symbol sequence sent on the first DD domain resource is received according to the first information. The method according to claim 13, wherein the first information includes at least one of the following: the number of resource element sets of the first DD domain resources; a continuous number of resource elements included in the delay domain by at least one resource element set of the first DD domain resources; The at least one resource element set of the first DD domain resources includes a continuous number of resource elements in the Doppler domain. The method according to any one of claims 10 to 14, characterized in that the method further comprises: receiving second information, where the second information is used to indicate average transmit power information corresponding to symbols mapped on at least one resource element set of the first DD domain resources; The receiving a symbol sequence sent on the first DD domain resource includes: A symbol sequence sent on the first DD domain resources is received according to the second information. The method according to claim 15, wherein the second information includes at least one of the following: an average transmit power corresponding to symbols mapped on at least one resource element set of the first DD domain resources; A difference between average transmit powers corresponding to symbols mapped on two resource element sets of the first DD domain resources; The ratio between the average transmission powers corresponding to the symbols mapped on the two resource element sets of the first DD domain resources. The method according to any one of claims 10 to 16, characterized in that at least one of the following is agreed upon in the communication protocol: an average transmit power corresponding to symbols mapped on at least one resource element set of the first DD domain resources; A difference between average transmit powers corresponding to symbols mapped on two resource element sets of the first DD domain resources; The ratio between the average transmission powers corresponding to the symbols mapped on the two resource element sets of the first DD domain resources. The method according to any one of claims 10 to 17, characterized in that the method further comprises: receiving third information, where the third information is used to indicate a power ratio between a second receiving device and the first receiving device, where the power ratio includes a ratio between an average transmit power corresponding to a symbol mapped on a set of resource particles of a second DD domain resource and an average transmit power corresponding to a symbol mapped on a set of resource particles of the first DD domain resource, where the second DD domain resource is a DD domain resource allocated to the second receiving device; The receiving a symbol sequence sent on the first DD domain resource includes: A symbol sequence sent on the first DD domain resource is received according to the third information. A communication device, comprising: A processing module, configured to determine a first DD domain resource allocated to a first receiving device; a transceiver module, configured to send a first symbol sequence according to a first average transmission power, and send a second symbol sequence according to a second average transmission power; The first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resources, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resources, and the first average transmit power is less than the second average transmit power. A communication device, comprising: A processing module, configured to determine the allocated first DD domain resources; a transceiver module, configured to receive a symbol sequence sent on the first DD domain resource, where the symbol sequence includes a first symbol sequence and a second symbol sequence; The first symbol sequence includes symbols of a first resource particle set mapped to the first DD domain resources, the second symbol sequence includes symbols of a second resource particle set mapped to the first DD domain resources, the first symbol sequence is sent according to a first average transmit power, the second symbol sequence is sent according to a second average transmit power, and the first average transmit power is less than the second average transmit power. A communication device, comprising: one or more processors; Wherein, the communication device is used to execute the communication method according to any one of claims 1-9. A communication device, comprising: one or more processors; Wherein, the communication device is used to execute the communication method described in any one of claims 10-18. A communication system, characterized in that it includes a sending device and a receiving device, wherein the sending device is configured to implement the communication method described in any one of claims 1-9, and the receiving device is configured to implement the communication method described in any one of claims 10-18. A storage medium storing instructions, characterized in that when the instructions are executed on a communication device, the communication device executes a communication method as described in any one of claims 1 to 9 or any one of claims 10 to 18.