Communication method, terminal, network device, and storage medium

Abstract

The present invention relates to a communication method, a terminal, a network device, and a storage medium. The communication method comprises: a terminal receives reference signal resources sent by a network device; the terminal determines first information on the basis of the reference signal resources, the first information comprising difference information between different reference signal resources; and the terminal sends the first information to the network device. According to the present invention, a network device can learn about difference information of reference signal resources, and data sent by a plurality of TRPs can be subsequently controlled to reach a terminal as simultaneously as possible.

Description

Communication method, terminal, network device and storage medium Technical Field

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

[0002] Currently, coherent joint transmission (CJT) among multiple transmission reception points (TRPs) considers ideal synchronization and ideal backhaul links between multiple TRPs to ensure that data sent by multiple TRPs arrives at the terminal at the same time, or the difference in arrival time is within the cyclic prefix (CP) range.

[0003] Summary of the Invention

[0004] If multiple TRPs cannot be ideally synchronized, or there is no ideal backhaul link between multiple TRPs, there is no guarantee that the data sent by multiple TRPs can reach the terminal at the same time, or reach the terminal within the CP range.

[0005] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, comprising: a terminal receiving a reference signal resource sent by a network device; the terminal determining first information based on the reference signal resource, the first information including difference information between different reference signal resources; and the terminal sending the first information to the network device.

[0007] According to a second aspect of an embodiment of the present disclosure, a communication method is proposed, comprising: a network device sending a reference signal resource to a terminal; the network device receiving first information sent by the terminal, the first information comprising difference information between different reference signal resources.

[0008] According to a third aspect of an embodiment of the present disclosure, a communication method is proposed, comprising: a network device sending a reference signal resource to a terminal; the terminal determining first information based on the reference signal resource, the first information including difference information between different reference signal resources; and the terminal sending the first information to the network device.

[0009] According to the fourth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: a transceiver module for receiving a reference signal resource sent by a network device; a processing module for determining first information based on the reference signal resource, wherein the first information includes difference information between different reference signal resources; the transceiver module is also used to send the first information to the network device.

[0010] According to a fifth aspect of an embodiment of the present disclosure, a network device is proposed, including: a transceiver module, configured to send reference signal resources to a terminal; and receive first information sent by the terminal, wherein the first information includes difference information between different reference signal resources.

[0011] According to a sixth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the communication methods in the first aspect.

[0012] According to a seventh aspect of an embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; wherein the network device is used to execute the second aspect and any one of the communication methods in the second aspect.

[0013] According to the eighth aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect.

[0014] According to the ninth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes a communication method such as the first aspect and any one of the first aspects or the second aspect and any one of the second aspects.

[0015] The present disclosure receives the reference signal resources configured by the network device and reports the difference information of different reference signal resources to the network device, so that the network device can know the difference information of the reference signal resources, and is conducive to the subsequent control of the data sent by multiple TRPs to reach the terminal at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0017] FIG1 is a schematic diagram showing a communication system architecture according to an embodiment of the present disclosure.

[0018] FIG2 is a schematic diagram showing an interaction of a communication method according to an embodiment of the present disclosure.

[0019] FIG3 a is a flow chart of a communication method according to an embodiment of the present disclosure.

[0020] FIG3 b is a flow chart of a communication method according to an embodiment of the present disclosure.

[0021] FIG4 a is a flow chart of a communication method according to an embodiment of the present disclosure.

[0022] FIG4 b is a flow chart of a communication method according to an embodiment of the present disclosure.

[0023] FIG5 is a schematic diagram showing an interaction of a communication method according to an embodiment of the present disclosure.

[0024] FIG6 a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.

[0025] FIG6 b is a schematic structural diagram of a network device according to an embodiment of the present disclosure.

[0026] Fig. 7a is a schematic structural diagram of a communication device according to an exemplary embodiment.

[0027] FIG7 b is a schematic diagram showing a chip structure according to an exemplary embodiment. DETAILED DESCRIPTION

[0028] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a storage medium.

[0029] In a first aspect, an embodiment of the present disclosure proposes a communication method, which includes: a terminal receives a reference signal resource sent by a network device; the terminal determines first information based on the reference signal resource, where the first information includes difference information between different reference signal resources; and the terminal sends the first information to the network device.

[0030] In the above embodiment, by receiving the reference signal resources configured by the network device and reporting the difference information of different reference signal resources to the network device, the network device can be informed of the difference information of the reference signal resources, and it is beneficial to subsequently control the data sent by multiple TRPs to arrive at the terminal at the same time. In some optional instances of the first aspect, the difference information includes at least one of the following: the time difference between the reference signals on different reference signal resources reaching the terminal; the frequency offset corresponding to the different reference signal resources; and the phase offset corresponding to the different reference signal resources.

[0031] In some optional embodiments of the first aspect, the difference information includes at least one of the following: a time difference corresponding to different reference signal resources; a frequency offset corresponding to different reference signal resources; and a phase offset corresponding to different reference signal resources.

[0032] In the above embodiment, the time difference between the arrival of reference signals on different reference signal resources at the terminal can be reported to the network device, so that the network device can determine the time difference between the arrival of data sent by multiple TRPs at the terminal based on the time difference, thereby compensating for the time difference and enabling data sent by different TRPs to arrive at the terminal simultaneously. The frequency offset corresponding to different reference signal resources can be reported to the network device, so that the network device can determine the time difference between the arrival of data sent by multiple TRPs at the terminal based on the frequency offset, thereby compensating for the time difference and enabling data sent by different TRPs to arrive at the terminal simultaneously. The phase offset corresponding to different reference signal resources can be reported to the network device, so that the network device can determine the time difference between the arrival of data sent by multiple TRPs at the terminal based on the phase offset, thereby compensating for the time difference and enabling data sent by different TRPs to arrive at the terminal simultaneously.

[0033] In some optional embodiments of the first aspect, for a reference signal resource in the frequency band FR1, the reference point corresponding to the first information is an antenna connector of the terminal.

[0034] In the above embodiment, for the reference signal resources on FR1, the reference point corresponding to the first information is the antenna connector of the terminal, so that the network device can more accurately judge the time difference between the data sent by multiple TRPs arriving at the terminal, so as to compensate for the time difference and enable the data sent by different TRPs to arrive at the terminal at the same time.

[0035] In some optional embodiments of the first aspect, for a reference signal resource on FR2, the reference point corresponding to the first information is an antenna of the terminal.

[0036] In the above embodiment, for the reference signal resources on FR2, the reference point corresponding to the first information is the antenna of the terminal so that the network device can more accurately judge the time difference between the data sent by multiple TRPs arriving at the terminal, so as to compensate for the time difference and enable the data sent by different TRPs to arrive at the terminal at the same time.

[0037] In some optional embodiments of the first aspect, for the reference signal resource on FR2, the first information is determined in the following manner: the first information is obtained based on the combined signal measurement on multiple antenna elements corresponding to the terminal receiver branch, and the combined information is the signal transmitted on the reference signal resource on FR2.

[0038] In the above embodiment, for the reference signal resource on FR2, the first information is obtained based on the above combined signal measurement on the reference signal resource to make the measurement more accurate.

[0039] In some optional embodiments of the first aspect, the first information includes difference information between the designated reference signal resource and other reference signal resources, and the designated reference signal resource is determined in at least one of the following ways: the terminal determines the reference signal resource corresponding to the earliest arriving reference signal among the received reference signal resources as the designated reference signal resource; the terminal determines the reference signal resource corresponding to the earliest arriving reference signal among the reported reference signal resources as the designated reference signal resource, and the reported multiple reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information; the designated reference signal resource is determined based on second information sent by the network device, and the second information is used to indicate the designated reference signal resource; the terminal determines the reference signal resource with the smallest reference signal resource index among the received reference signal resources as the designated reference signal resource; the terminal determines the reference signal resource with the smallest reference signal resource index among the reported reference signal resources as the designated reference signal resource.

[0040] In the above embodiment, when the difference information between different reference signal resources included in the first information is the difference information between the designated reference signal resource and other reference signal resources, the designated reference signal resource can be determined using at least one of the above methods to adapt to different situations and scenarios, more efficiently determine the execution reference signal resource, or save resource consumption as much as possible.

[0041] In some optional embodiments of the first aspect, the first information further includes third information, where the third information is used to indicate a designated reference signal resource.

[0042] In the above embodiment, the terminal can also report to the network device which reference signal resource is the designated reference signal resource, so that the network device can better judge the time difference between multiple TRPs, so that data sent by different TRPs can reach the terminal at the same time.

[0043] In some optional embodiments of the first aspect, the first information also includes fourth information, and the fourth information is used to indicate the reported reference signal resources, and the reported reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information.

[0044] In the above embodiment, the terminal may further report to the network device first information indicating which reference signal resources have been reported, so that the network can more efficiently determine the time difference between multiple TRPs, allowing data sent from different TRPs to arrive at the terminal simultaneously. Alternatively, the network device may reconfigure the reference signal resources and redetermine the first information for reference signal resources for which the first information has not been reported.

[0045] In some optional embodiments of the first aspect, the time difference is determined based on at least one of a time slot and a symbol corresponding to a reference signal resource.

[0046] In the above embodiment, the time difference can be determined based on at least one of the time slot and symbol of the reference signal resource, that is, when determining the time difference, the influence of the time slot and / or symbol of the reference signal resource on the time difference can be considered, so as to more accurately determine the time difference and better control the data sent by different TRPs to arrive at the terminal at the same time.

[0047] In some optional embodiments of the first aspect, one reference signal resource corresponds to one or a group of first information; or one reference signal resource corresponds to multiple or multiple groups of first information, wherein each or each group of first information corresponds to a path.

[0048] In the above embodiment, one reference signal resource may correspond to one or one group of first information. This means that the influence of the path over which the reference signal resource is transmitted is not considered, allowing for simpler and more efficient determination of the first information. Alternatively, one reference signal resource may correspond to multiple or multiple groups of first information, with each piece of information or each group of information corresponding to a path. This means that the influence of the path over which the reference signal resource is transmitted on the first information is considered, allowing for more accurate determination of the first information.

[0049] In some optional embodiments of the first aspect, the first information is sent based on a channel state information feedback framework CSI, and the first information is reported independently of at least one of the following: channel quality indication CQI; precoding matrix indication PMI; classification indication RI; channel state information reference signal resource indication CRI; layer indication LI; layer 1 reference signal received power L1-RSRP; layer 1 signal interference and noise ratio L1-SINR; time domain channel property TDCP.

[0050] In the above embodiment, the first information can be sent based on the channel state feedback framework CSI and reported independently of the above at least one item, that is, the first information does not need to be reported frequently together with the above at least one item of information, saving signaling overhead and saving resources.

[0051] In a second aspect, a communication method is provided, the method comprising: a network device sending a reference signal resource to a terminal; the network device receiving first information sent by the terminal, the first information comprising difference information between different reference signal resources.

[0052] In some optional embodiments of the second aspect, the first information includes at least one of the following: a time difference corresponding to different reference signal resources; a frequency offset corresponding to different reference signal resources; and a phase offset corresponding to different reference signal resources.

[0053] In some optional embodiments of the second aspect, for reference signal resources in the frequency band FR1, the reference point corresponding to the first information is an antenna connector of the terminal.

[0054] In some optional embodiments of the second aspect, for a reference signal resource on FR2, the reference point corresponding to the first information is an antenna of the terminal.

[0055] In some optional embodiments of the second aspect, the first information includes difference information between the designated reference signal resource and other reference signal resources, and also includes third information, where the third information is used to indicate the designated reference signal resource.

[0056] In some optional embodiments of the second aspect, the first information also includes fourth information, and the fourth information is used to indicate the reported reference signal resources, and the reported reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information.

[0057] In some optional embodiments of the second aspect, the time difference is determined based on at least one of a time slot and a symbol corresponding to a reference signal resource.

[0058] In some optional embodiments of the second aspect, one reference signal resource corresponds to one or a group of first information; or one reference signal resource corresponds to multiple or multiple groups of first information, wherein each or each group of first information corresponds to a path.

[0059] In some optional embodiments of the second aspect, the first information is received based on a channel state information feedback framework CSI, and the first information is received independently of at least one of the following: channel quality indication CQI; precoding matrix indication PMI; classification indication RI; channel state information reference signal resource indication CRI; layer indication LI; layer 1 reference signal received power L1-RSRP; layer 1 signal to interference and noise ratio L1-SINR; time domain channel property TDCP.

[0060] According to a third aspect, a communication method is provided, comprising: a network device sending a reference signal resource to a terminal; the terminal determining first information based on the reference signal resource, the first information comprising difference information between different reference signal resources; and the terminal sending the first information to the network device.

[0061] In a fourth aspect, a terminal is provided, comprising: a transceiver module for receiving reference signal resources sent by a network device; a processing module for determining first information based on the reference signal resources, wherein the first information includes difference information between different reference signal resources; the transceiver module is also used to send the first information to the network device.

[0062] In some optional embodiments of the fourth aspect, the difference information includes at least one of the following: a time difference corresponding to different reference signal resources; a frequency offset corresponding to different reference signal resources; and a phase offset corresponding to different reference signal resources.

[0063] In some optional embodiments of the fourth aspect, for reference signal resources on the frequency band FR1, the first information corresponds to an antenna connector of the terminal.

[0064] In some optional embodiments of the fourth aspect, for a reference signal resource on FR2, the first information corresponds to an antenna of the terminal.

[0065] In some optional embodiments of the fourth aspect, for the reference signal resources on FR2, the processing module determines the first information in the following manner: the first information is obtained based on the combined signal measurement on multiple antenna elements corresponding to the terminal receiver branch, and the combined information is the signal transmitted on the reference signal resource on FR2.

[0066] In some optional embodiments of the fourth aspect, the first information includes difference information between the designated reference signal resource and other reference signal resources, and the processing module determines the designated reference signal resource in at least one of the following ways: the terminal determines the reference signal resource corresponding to the earliest arriving reference signal among the received reference signal resources as the designated reference signal resource; the terminal determines the reference signal resource corresponding to the earliest arriving reference signal among the reported reference signal resources as the designated reference signal resource, and the reported multiple reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information; the designated reference signal resource is determined based on second information sent by the network device, and the second information is used to indicate the designated reference signal resource; the terminal determines the reference signal resource with the smallest reference signal resource index among the received reference signal resources as the designated reference signal resource; and the terminal determines the reference signal resource with the smallest reference signal resource index among the reported reference signal resources as the designated reference signal resource.

[0067] In some optional embodiments of the fourth aspect, the first information further includes third information, and the third information is used to indicate a designated reference signal resource.

[0068] In some optional embodiments of the fourth aspect, the first information also includes fourth information, and the fourth information is used to indicate the reported reference signal resources, and the reported reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information.

[0069] In some optional embodiments of the fourth aspect, the processing module determines the time difference based on at least one of a time slot and a symbol corresponding to the reference signal resource.

[0070] In some optional embodiments of the fourth aspect, one reference signal resource corresponds to one or a group of first information; or one reference signal resource corresponds to multiple or multiple groups of first information, wherein each or each group of first information corresponds to a path.

[0071] In some optional embodiments of the fourth aspect, the transceiver module sends the first information based on the channel state information feedback framework CSI, and the transceiver module reports the first information independently of at least one of the following: channel quality indication CQI; precoding matrix indication PMI; classification indication RI; channel state information reference signal resource indication CRI; layer indication LI; layer 1 reference signal received power L1-RSRP; layer 1 signal interference and noise ratio L1-SINR; time domain channel attribute TDCP.

[0072] In a fifth aspect, a network device is provided, including: a transceiver module, used to send reference signal resources to a terminal; and receive first information sent by the terminal, wherein the first information includes difference information between different reference signal resources.

[0073] In some optional embodiments of the fifth aspect, the first information includes at least one of the following: a time difference corresponding to different reference signal resources; a frequency offset corresponding to different reference signal resources; and a phase offset corresponding to different reference signal resources.

[0074] In some optional embodiments of the fifth aspect, for reference signal resources on the frequency band FR1, the first information corresponds to an antenna connector of the terminal.

[0075] In some optional embodiments of the fifth aspect, for a reference signal resource on FR2, the first information corresponds to an antenna of the terminal.

[0076] In some optional embodiments of the fifth aspect, the first information includes difference information between the designated reference signal resource and other reference signal resources, and also includes third information, where the third information is used to indicate the designated reference signal resource.

[0077] In some optional embodiments of the fifth aspect, the first information also includes fourth information, and the fourth information is used to indicate the reported reference signal resources, and the reported reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information.

[0078] In some optional embodiments of the fifth aspect, the time difference is determined based on at least one of a time slot and a symbol corresponding to a reference signal resource.

[0079] In some optional embodiments of the fifth aspect, one reference signal resource corresponds to one or a group of first information; or one reference signal resource corresponds to multiple or multiple groups of first information, wherein each or each group of first information corresponds to a path.

[0080] In some optional embodiments of the fifth aspect, the transceiver module receives first information based on the channel state information feedback framework CSI, and the transceiver module receives the first information independently of at least one of the following: channel quality indication CQI; precoding matrix indication PMI; classification indication RI; channel state information reference signal resource indication CRI; layer indication LI; layer 1 reference signal received power L1-RSRP; layer 1 signal interference and noise ratio L1-SINR; time domain channel attribute TDCP.

[0081] In a sixth aspect, a terminal is provided, comprising: one or more processors; wherein the terminal is used to execute the first aspect and any one of the communication methods in the first aspect.

[0082] In a seventh aspect, a network device is provided, comprising: one or more processors; wherein the network device is used to execute the second aspect and any one of the communication methods in the second aspect.

[0083] In an eighth aspect, a communication system is provided, comprising a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect.

[0084] In the ninth aspect, a storage medium is provided, which stores instructions. When the instructions are executed on a communication device, the communication device executes a communication method such as the first aspect and any one of the first aspect or the second aspect and any one of the second aspect.

[0085] In a tenth 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 optional implementation manner of the first aspect or the second aspect.

[0086] In an eleventh 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 optional implementation of the first or second aspect.

[0087] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first or second aspect.

[0088] It is understandable that the terminal, access network device, first network element, other network elements, core network device, communication system, storage medium, program product, computer program, chip, or chip system involved in each embodiment of the present disclosure are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0089] The present disclosure provides a communication method, a terminal, a network device, and a storage medium. In some embodiments, the terms "communication method," "information processing method," and "communication method" are interchangeable; the terms "communication device," "information processing device," and "communication device" are interchangeable; and the terms "information processing system," "communication system," and "communication system" are interchangeable.

[0090] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0091] In each embodiment of the present disclosure, unless otherwise specified or provided for, the terms and / or descriptions between the embodiments are consistent and may be referenced by each other. The technical environments in different embodiments may be combined to form new embodiments based on their inherent logical relationships.

[0092] 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.

[0093] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0094] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0095] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0096] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0097] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0098] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for example, if the description object is "information", then the "first information" and "the performance of each AI model" can be the same information or different information, and their contents can be the same or different.

[0099] 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.

[0100] 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.

[0101] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0102] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0103] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0104] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0105] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0106] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0107] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0108] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0109] At present, ideal synchronization is considered in the CJT of multiple TRPs, and there are ideal return links between multiple TRPs to ensure that the data sent by multiple TRPs can reach the terminal at the same time, or the difference in arrival time is within the CP range to ensure that the terminal can correctly receive the data sent by different TRPs.

[0110] However, if multiple TRPs cannot be ideally synchronized, or there is no ideal backhaul between multiple TRPs, that is, when the interaction delay between TRPs is large, how to ensure that the data sent by multiple TPPs can reach the terminal side at the same time or within the CP range is a problem that needs to be solved.

[0111] Therefore, the present disclosure provides a communication method, which receives the reference signal resources configured by the network device and reports the difference information of different reference signal resources to the network device, so that the network device can know the difference information of the reference signal resources, and is conducive to the subsequent control of the data sent by multiple TRPs to reach the terminal at the same time.

[0112] FIG1 is a schematic diagram showing a communication system architecture according to an embodiment of the present disclosure.

[0113] As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0114] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0115] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0116] In some embodiments, the access network device is, for example, a node or device that accesses a terminal 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 nodeB (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, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0117] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0118] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0119] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0120] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0121] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0122] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0123] FIG2 is a schematic diagram illustrating an interaction of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the present disclosure embodiment relates to a communication method for use in a communication system 100, the method comprising:

[0124] Step S2101 : The network device 102 sends a reference signal resource to the terminal 101 .

[0125] In some embodiments, the terminal 101 receives the reference signal resource sent by the network device 102. The network device may send the reference signal resource to the terminal via resource configuration information of the reference signal.

[0126] In some embodiments, the reference signal resource may be, for example, a channel state information-reference signal resource (CSI-RS resource), but is not limited thereto. The reference signal resource is used to transmit a reference signal (RS). There may be differences between the reference signal resources received by the terminal. For example, the time at which reference signals on different reference signal resources arrive at the terminal may vary. For another example, the frequency offsets at which reference signals on different reference signal resources arrive at the terminal may vary. For another example, the phase offsets at which reference signals on different reference signal resources arrive at the terminal may vary.

[0127] Step S2102 , the network device 102 sends second information to the terminal 101 .

[0128] In some embodiments, the terminal 101 receives second information sent by the network device 102 .

[0129] In some embodiments, the second information is used to indicate a designated reference signal resource. For example, a channel measurement resource (CMR) is configured in the reference signal resource configuration information, and a CMR includes multiple CSI-RS resources. The network device can explicitly instruct the terminal based on the second information which of the multiple CSI-RS resources is determined as the designated reference signal resource. The designated reference signal resource is the Reference CSI-RS resource. Optionally, different CSI-RS resources correspond to different TRPs, that is, the TRP corresponding to the Reference CSI-RS resource is the Reference TRP. That is, the network device can inform the terminal of the reference signal resource in step S2101, and indicate the designated reference signal resource in the reference signal resource to the terminal through a second message in step S2102.

[0130] In some embodiments, the terminal may determine difference information between other reference signal resources and the designated reference signal resource based on the designated reference signal resource, and report the difference information to the network device.

[0131] Optionally, the terminal uses the designated reference signal resource as a reference to determine difference information between other reference signal resources and the designated reference signal resource.

[0132] It should be understood that step S2101 and step S2102 may be performed sequentially or simultaneously, and this disclosure does not limit this. The reference signal resource and the second information may be carried in the same signaling or sent separately.

[0133] Step S2103: Terminal 101 determines first information based on the reference signal resource.

[0134] In some embodiments, a terminal may determine the first information based on a reference signal resource configured by a network device. For example, the first information may be obtained by the terminal through measurements based on the reference signal resource. The first information includes information about differences between different reference signal resources. For example, information corresponding to each reference signal resource may be included to implicitly represent the differences between different reference signal resources. For another example, information between different reference signal resources may be included to explicitly represent the differences between different reference signal resources.

[0135] In some embodiments, the difference information includes at least one of the following: a time difference corresponding to different reference signal resources; a frequency offset corresponding to different reference signal resources; and a phase offset corresponding to different reference signal resources.

[0136] Optionally, the difference information may include the time difference corresponding to different reference signal resources. For example, the network device sends reference signal RS#1 on reference signal resource A and sends reference signal RS#2 on reference signal resource B. The time when reference signals RS#1 and RS#2 arrive at the terminal may be different. The terminal may report the time difference between the reference signals sent on reference signal resource A and reference signal resource B, that is, the time difference when RS#1 and RS#2 arrive at the terminal, to the network device. For example, if reference signal resource A is a designated reference signal resource, the terminal uses reference signal resource A as a reference, that is, uses the arrival time of RS#1 as a reference, and uses the difference between the arrival time of RS#2 and the arrival time of RS#1 as the time difference of RS#2 relative to RS#1, that is, the time difference between reference signal resource B and reference signal resource A. It can be understood that the examples of reference signal resources and reference signals in this embodiment are only exemplary and are not limited in this disclosure.

[0137] Optionally, the difference information may include frequency offsets corresponding to different reference signal resources. The frequency offset corresponding to different reference signal resources may be the offset of the reference signal resource relative to the center carrier frequency, that is, each reference signal resource corresponds to a frequency offset. For example, for reference signal resource A and reference signal resource B, the offset of reference signal resource A relative to the center carrier frequency is assumed to be X1, and the offset of reference signal resource B relative to the center carrier frequency is assumed to be X2. The terminal may include X1 and / or X2 in the first information and report it to the network device. The frequency offset corresponding to different reference signal resources may also be the difference between the offsets of two reference signal resources relative to the center carrier frequency, with one frequency offset corresponding to every two reference signal resources. For example, for reference signal resource A and reference signal resource B, the offset of reference signal resource A relative to the center carrier frequency is assumed to be X1, and the offset of reference signal resource B relative to the center carrier frequency is assumed to be X2. If the designated reference signal resource is reference signal resource A, then the terminal uses the frequency offset at the time of arrival of the reference signal on reference signal resource A as a reference, and takes the frequency offset difference X2-X1 between the frequency offset at the time of arrival of the reference signal on reference signal resource B and the frequency offset at the time of arrival of the reference signal on reference signal resource A as the frequency offset difference between reference signal resource B and reference signal resource A. The terminal can include (X2-X1) in the first information and report it to the network device. The frequency offset corresponding to different reference signal resources can also be the difference in frequencies corresponding to two reference signal resources, with one frequency offset corresponding to every two reference signal resources. That is, the terminal only needs to obtain the frequency of the reference signal on each reference signal resource when it arrives at the terminal. For example, the frequency corresponding to the specified reference signal resource A is X1, and the frequency corresponding to another reference signal resource B is X2. Then the frequency offset of the reference signal resource B relative to the specified reference signal resource A is X2-X1. The terminal can include (X2-X1) in the first information and report it to the network device.

[0138] Optionally, the difference information may include phase offsets corresponding to different reference signal resources. For example, the phase offsets corresponding to different reference signal resources are the difference in phases corresponding to the different reference signal resources. Every two reference signal resources correspond to one frequency offset. That is, the terminal only needs to obtain the phase of the reference signal on each reference signal resource when it arrives at the terminal. For example, if the phase corresponding to a designated reference signal resource A is Y1, and the phase corresponding to another reference signal resource B is Y2, then the phase offset of reference signal resource B relative to the designated reference signal resource A is Y2-Y11. The terminal may include (Y2-Y1) in the first information and report it to the network device.

[0139] In some embodiments, the reference signal resources may include, for example, reference signal resources on frequency range (FR) 1 and reference signal resources on FR2, where FR1 refers to a frequency band below 6 gigahertz (GHz) and FR2 refers to a millimeter wave frequency band between 24.25 GHz and 52.6 GHz.

[0140] In some embodiments, for the reference signal resource on FR1, the reference point of the first information is the antenna connector of the terminal. That is, if the reference signal resource received by the terminal is the reference signal resource on FR1, the first information obtained based on the reference signal resource is the first information obtained when the reference signal on the reference signal resource reaches the antenna connector of the terminal. It can be understood that the Reference point corresponding to the first information is the antenna connector of the terminal, that is, the first information corresponds to the value corresponding to the first information obtained by measuring when the reference signal reaches the antenna connector of the terminal. Since the value of the corresponding first information is different when the reference signal reaches different hardware devices of the terminal for measurement, it is necessary to define a Reference point.

[0141] In some embodiments, for a reference signal resource on FR2, the reference point of the first information is the antenna of the terminal. That is, if the reference signal resource received by the terminal is a reference signal resource on FR2, the first information obtained based on the reference signal resource is the first information obtained when the reference signal on the reference signal resource reaches the antenna of the terminal. It can be understood that the Reference point corresponding to the first information is the antenna of the terminal, that is, the first information corresponds to the value corresponding to the first information obtained by measuring when the reference signal reaches the antenna of the terminal. Since the value of the corresponding first information is different when the reference signal reaches different hardware devices of the terminal for measurement, it is necessary to define a Reference point.

[0142] In some embodiments, for reference signal resources on FR2, the first information may be obtained based on a measurement of a combination of signals on multiple antenna elements corresponding to a terminal receiver branch. For ease of description in the following disclosure, the combined signal on multiple antenna elements corresponding to the terminal receiver branch is referred to as a combined signal. The combined signal is a signal transmitted on the FR2 reference signal resource. For example, for reference signal resources on FR2, the first information includes a time difference between the arrival of reference signals on different reference signal resources at the terminal. The time difference may be a time difference between the arrival of combined signals on different reference signal resources at the terminal. For another example, for reference signal resources on FR2, the first information includes a frequency offset corresponding to different reference signal resources. The frequency offset may be obtained based on the measurement of combined signals on different reference signal resources, that is, the frequency of the reference signal resource may be measured based on the combined signal on the reference signal resource, and the offset between the frequency and the center carrier frequency may be determined as the frequency offset corresponding to the reference signal resource. Alternatively, the frequency of the reference signal resource may be measured based on the combined signal on the reference signal resource to obtain an offset between the frequency of each reference signal resource and the center carrier frequency, and the difference between the offsets corresponding to the two reference signal resources may be determined as the frequency offset corresponding to the two reference signal resources. For another example, for reference signal resources on FR2, the first information includes phase offsets corresponding to different reference signal resources. The phase offsets can be measured based on combined signals on the different reference signal resources. That is, the phase offsets of the reference signal resources can be measured based on the combined signal on the reference signal resources, and the difference between the phases corresponding to the two reference signal resources can be determined as the phase offsets corresponding to the two reference signal resources.

[0143] In some embodiments, the first information may include difference information between the designated reference signal resource and other reference signal resources. The designated reference signal resource may also be referred to as a reference reference signal resource, and this disclosure does not limit the name. The designated reference signal resource may be used as a reference to obtain first information corresponding to other reference signal resources. For example, the first information may include the time difference between the time when a reference signal on the designated reference signal resource arrives at the terminal and the time when a reference signal on other reference signal resources arrives at the terminal; or the time difference between the time when a reference signal on other reference signal resources arrives at the terminal and the time when a reference signal on the designated reference signal resource arrives at the terminal. That is, assuming that the time when the reference signal on the designated reference signal resource arrives at the terminal is T0, the time when the reference signal on other reference signal resource A arrives at the terminal is T1, and the time when the reference signal on other reference signal resource B arrives at the terminal is T2. The time difference corresponding to reference signal resource A is (T1-T0), and (T1-T0) may be included in the first information and reported to the network device. Correspondingly, the time difference corresponding to reference signal resource B is (T2-T0), and (T2-T0) may be included in the first information and reported to the network device. For another example, the first information may include the frequency offset between the reference signal resource and other reference signal resources. Assume that the frequency offset corresponding to the designated reference signal resource relative to the center carrier frequency is X0, the frequency offset corresponding to other reference signal resource A relative to the center carrier frequency is X1, and the frequency offset corresponding to other reference signal resource B relative to the center carrier frequency is X2. Then the frequency offset corresponding to reference signal resource A can be (X1-X0), and (X1-X0) is included in the first information and reported to the network device. Correspondingly, the frequency offset corresponding to reference signal resource B can be (X2-X0), and (X2-X0) is included in the first information and reported to the network device. Or assume that the corresponding frequency of the designated reference signal resource is X0, the frequency corresponding to other reference signal resource A is X1, and the frequency corresponding to other reference signal resource B is X2. Then the frequency offset corresponding to reference signal resource A can be (X1-X0), and (X1-X0) is included in the first information and reported to the network device. Accordingly, the frequency offset corresponding to reference signal resource B can be (X2-X0), and (X2-X0) is included in the first information and reported to the network device. For another example, the first information may include the phase offset between the designated reference signal resource and other reference signal resources. Assume that the phase offset of the designated reference signal resource is Y0, the phase offset corresponding to other reference signal resource A is Y1, and the phase offset corresponding to other reference signal resource B is Y2. Then, the phase offset corresponding to reference signal resource A can be (Y1-Y0), and (Y1-Y0) is included in the first information and reported to the network device.Correspondingly, the phase offset corresponding to the reference signal resource B may be (Y2-Y0), and (Y2-Y0) is included in the first information and reported to the network device.

[0144] In some embodiments, the designated reference signal resource can be determined in at least one of the following ways: the terminal determines the reference signal resource corresponding to the earliest arriving reference signal among the received reference signal resources as the designated reference signal resource; the terminal determines the reference signal resource corresponding to the earliest arriving reference signal among the reported reference signal resources as the designated reference signal resource, and the reported multiple reference signal resources include reference signal resources and / or designated reference signal resources that report corresponding first information; the designated reference signal resource is determined based on second information sent by the network device, and the second information is used to indicate the designated reference signal resource; the terminal determines the reference signal resource with the smallest reference signal resource index among the received reference signal resources as the designated reference signal resource; the terminal determines the reference signal resource with the smallest reference signal resource index among the reported reference signal resources as the designated reference signal resource.

[0145] Optionally, the terminal may determine, among the received reference signal resources, a reference signal resource corresponding to a reference signal that arrives earliest as the designated reference signal resource.

[0146] Optionally, the terminal may determine the reference signal resource corresponding to the earliest arriving reference signal among the reported reference signal resources as the designated reference signal resource. The reported reference signal resources include reference signal resources and / or designated reference signal resources in which the first information is reported. For example, if the terminal receives multiple reference signal resources configured by a network device, but determines first information based on only some of the reference signal resources and reports the first information to the network device, then these reference signal resources are the reported reference signal resources. The first information corresponding to the reference signal resources not included in the reported first information is discarded, or the reference signal resources in which the first information is quantized to a value preset by the protocol are referred to as reference signal resources in which the first information is not reported, or reference signal resources in which the first information is quantized to a value preset by the protocol. It is understood that the names of the reported reference signal resources and the unreported reference signal resources are not limited and may be represented by other names. The reported reference signal resources may, for example, be reference signal resources that meet the conditions. For example, when the time difference between a reference signal on a certain reference signal resource and a reference signal on another reference signal resource arriving at the terminal is greater than a first threshold, the reference signal resource may be treated as an unreported reference signal resource, i.e., the difference information corresponding to the reference signal resource is not reported. Conversely, when the time difference between a reference signal on a certain reference signal resource and a reference signal on another reference signal resource arriving at the terminal is not greater than the first threshold, the reference signal resource may be treated as a reported reference signal resource. Of course, the reported reference signal resources may be all received reference signal resources. That is, the terminal may determine the first information based on all received reference signal resources. Alternatively, after screening, no reference signal resources may be discarded by the terminal. That is, the reported reference signal resources may be some or all reference signal resources, which is not limited in this disclosure. The terminal may select, from among the reported reference signal resources, the reference signal resource whose reference signal arrives earliest as the designated reference signal resource. It will be understood that if the reference signal resource corresponding to the earliest arriving reference signal is determined as the designated reference signal resource, reference signals on other reference signal resources will arrive at the terminal later than the reference signal on the designated reference signal resource. Then, the time differences between the reference signals on other reference signal resources and the reference signal on the designated reference signal resource arriving at the terminal all have the same sign, for example, both are positive or both are negative, thereby saving occupied bits and resources.

[0147] Optionally, the terminal may determine the designated reference signal resource based on second information sent by the network device. The second information is used to indicate the designated reference signal resource. For example, the reference signal resource configuration includes a channel measurement resource (CMR), and a CMR includes multiple CSI-RS resources. The network device may explicitly instruct the terminal, based on the second information, which of the multiple CSI-RS resources to determine as the designated reference signal resource.

[0148] Optionally, the terminal may determine the reference signal resource with the smallest reference signal resource index among the received reference signal resources as the designated reference signal resource. For example, the reference signal resource configuration of the network device includes a channel measurement resource (CMR), and a CMR includes multiple CSI-RS resources. The terminal may determine the reference signal resource with the lowest reference signal resource index among the multiple CSI-RS resources as the designated reference signal resource. For another example, the reference signal resource with the highest reference signal resource index may also be determined as the designated reference signal resource, which is not limited in this disclosure. For example, the reference signal resource indexes are #0, #1, #2, and #3 respectively, then the reference signal resource corresponding to #0 may be determined as the designated reference signal resource. That is, the network device may implicitly indicate the designated reference signal resource by assigning a reference signal resource index. For example, the network device may assign the lowest reference signal resource index to the designated reference signal resource selected by it, and the terminal may determine the reference signal resource with the lowest reference signal resource index as the designated reference signal resource based on the reference signal resource index.

[0149] Optionally, the terminal determines the reference signal resource with the smallest reference signal resource index among the reported reference signal resources as the designated reference signal resource. For example, the reference signal resource configuration of the network device includes a CMR, and a CMR includes N CSI-RS resources. After measurement, the terminal only reports the first information corresponding to M of the CSI-RS resources. Then, the terminal determines the reference signal resource with the smallest reference signal resource index among the reported M CSI-RS resources as the designated reference signal resource, where M is less than or equal to N. For example, the indexes of the N reference signal resources are #0, #1, #2, and #3, respectively, and the indexes of the M reference signal resources are #1, #2, and #3, respectively. Then, the reference signal resource corresponding to #1 can be determined as the designated reference signal resource. That is, the terminal can implicitly indicate the designated reference signal resource by reporting the reference signal resource index and its corresponding first information.

[0150] In some embodiments, the first information may further include third information. The third information is used to indicate a designated reference signal resource. For example, if the terminal determines the designated reference signal resource on its own, the network device may be informed of the index of the reference signal resource corresponding to the designated reference signal resource determined by the terminal. For another example, if the network device indicates a reference signal resource, but the reference signal resource is discarded or unavailable by the terminal, the terminal may inform the network device of the determined designated reference signal resource. Of course, the above examples are all exemplary, and the terminal may also report the designated reference signal resource to the network device through the third information in other possible situations.

[0151] In some embodiments, the first information may further include fourth information. The fourth information is used to indicate the reported reference signal resource. For example, the reference signal resource configuration of the network device includes a CMR, and a CMR includes N CSI-RS resources. Then, the fourth information can use N bits to indicate the reported reference signal resource, and each reference signal resource corresponds to 1 bit. If the reference signal resource is a reported reference signal resource, the corresponding bit is 1. If the reference signal resource is a discarded reference signal resource, the corresponding bit is 0. If the first information already includes the third information, the fourth information can be reduced to N-1 bits, indicating only whether each reference signal resource other than the designated reference signal resource is a reported reference signal resource.

[0152] In some embodiments, the order of the difference information of different reference signal resources in the first information can be determined based on the index corresponding to each reference resource. For example, the difference information corresponding to the reference signal resources is reported in order from small to large indexes. For example, for reference signal resource indexes #0, #1, #2, and #3, assuming that the designated reference signal resource is #2, the order of reporting the difference information between other reference signal resources and the designated reference signal resource can be #0, #1, and #3. That is, at least one of the time difference, frequency offset, and phase offset corresponding to the reference signal resource with index #0 precedes at least one of the time difference, frequency offset, and phase offset corresponding to the reference signal resource with index #1, and precedes at least one of the time difference, frequency offset, and phase offset corresponding to the reference signal resource with index #3. However, it is understandable that reporting can also be done in other orders, and this disclosure is not limited thereto.

[0153] In some embodiments, when the first information includes difference information between different reference signal resources, namely, at least one of a time difference, a frequency offset, and a phase offset, the third information, and the fourth information, the information may be reported to the network device in a first reporting order, e.g., the order of the third information, the fourth information, and the difference information. That is, the designated reference signal resource may be reported first, followed by the reported reference signal resources, and finally the difference information corresponding to the reference signal resources. Alternatively, the information may be reported to the network device in a second reporting order, e.g., the order of the fourth information, the third information, and finally the difference information. That is, the reported reference signal resources may be reported first, followed by the designated reference signal resource among the reported reference signal resources, and finally the difference information corresponding to the different reference signal resources. It will be appreciated that, in the above two reporting orders, the first reporting order (i.e., reporting the third information first and then the fourth information) contains relatively more bits in the third information, but relatively fewer bits in the fourth information, compared to the second reporting order (i.e., reporting the fourth information first and then the third information). Conversely, in the second reporting order, the fourth information has relatively more bits, but the third information has relatively fewer bits. For example, assuming there are four reference signal resources, and the designated reference signal resource is reported first in the first reporting order, two bits are required to indicate which reference signal resource is the designated reference signal resource. However, only three bits are required to indicate which reference signal resources other than the designated reference signal resource are reported and which are not reported. In the second reporting order, four bits are required to indicate which reference signal resource is reported and which is not reported. However, fewer bits may be required to indicate which of the reported reference signal resources is the designated reference signal resource. For example, if three reference signal resources are reported, two bits are required to indicate which of the reported reference signal resources is the designated reference signal resource. For another example, if two reference signal resources are reported, one bit is required to indicate which of the reported reference signal resources is the designated reference signal resource.

[0154] In some embodiments, the time difference is determined based on at least one of the time slot and symbol corresponding to the reference signal resource. That is, when determining the time difference of the reference signals on different reference signal resources arriving at the terminal, at least one of the time slot and symbol corresponding to the different reference signal resources may be taken into account. For example, if different reference signal resources belong to different time slots, the time when the reference signals on the reference signal resources of different time slots arrive at the terminal is A. A is a time slot difference value including the resource configuration corresponding to different reference signal resources, that is, the transmission time difference corresponding to the reference signal, and the time difference affected by the position of the TRP and / or the transmission path of the reference signal. For another example, if the symbols of different reference signal resources are different, the time difference of the reference signals on the reference signal resources of different symbols arriving at the terminal is B, and B is a symbol difference value including the resource configuration corresponding to different reference signal resources, that is, the transmission time difference corresponding to the reference signal, and the time difference affected by the position of the TRP and / or the transmission path of the reference signal.

[0155] In some embodiments, the time difference may also be determined based on at least one of the time slot and symbol corresponding to the reference signal resource. That is, when determining the time difference of the reference signals on different reference signal resources arriving at the terminal, the time slot and / or symbol difference values ​​corresponding to the different reference signal resources may not be subtracted. For example, if different reference signal resources belong to different time slots, the time when the reference signals on the reference signal resources of different time slots arrive at the terminal is A. A is the time slot difference value that includes the resource configuration corresponding to different reference signal resources, that is, the transmission time difference corresponding to the reference signal, and the time difference affected by the position of the TRP and / or the transmission path of the reference signal. If it is not considered that different reference signal resources belong to different time slots, then the time difference corresponding to different reference signal resources should be A minus the time slot difference value of the resource configuration corresponding to the different reference signal resources, so as to obtain the time difference that is only affected by the position of the TRP and / or the transmission path of the reference signal. For another example, if different reference signal resources have different symbols, the time difference between the reference signals on the reference signal resources with different symbols reaching the terminal is B. The time difference B corresponding to the different reference signal resources is subtracted from the symbol difference value of the resource configuration corresponding to the different reference signal resources to obtain the time difference that is only affected by the position of the TRP and / or the transmission path of the reference signal.

[0156] In some embodiments, a pair of reference signal resources may correspond to one piece of difference information or a set of difference information. A set of difference information may be understood as including at least two of a time difference, a frequency offset, and a phase offset. For example, one piece of difference information may include one time difference. Another example is a set of difference information may include one time difference and one frequency offset. A pair of reference signal resources includes other reference signal resources and designated reference signal resources. Optionally, one piece of difference information or a set of difference information may correspond to a first path, i.e., the first path.

[0157] In some embodiments, a pair of reference signal resources may correspond to multiple or multiple groups of difference information, with each or each group of difference information corresponding to a path. That is, the same pair of reference signal resources may correspond to multiple transmission paths, and each transmission path may correspond to one or more difference information.

[0158] In some embodiments, the first information is sent based on the channel state information feedback framework CSI, and the first information is reported independently of at least one of the following: channel quality indicator (CQI); precoding matrix indicator (PMI); classification indicator (RI); channel state information reference signal resource indicator (CSI-RS resource indicator, CRI); layer indicator (LI); layer 1 reference signal received power (L1-RSRP); layer 1 signal to interference plus noise ratio (L1-SINR); time domain channel properties (TDCP).

[0159] In some embodiments, for example, PMI includes an X1 information field, i.e., a wideband PMI. The wideband PMI includes a codebook index (Codebook index) i1. For example, i1 may include i1,1 and i1,2. i1,1 is related to N1 and O1, N1 is the number of antenna ports in the first dimension, and O1 is the number of oversampling or beams in the first dimension. i1,2 is related to N2 and O2, N2 is the number of antenna ports in the second dimension, and O2 is the number of oversampling or beams in the second dimension. For another example, i1 includes i1,1, i1,2, and i1,3. i1,3 is mainly used to determine the antenna ports between different layers for the case where RANK>1, i.e., the number of layers is greater than 1. For another example, i1 includes i1,1, i1,2, and i1,4. i1,4 is used for different panels. For example, i1,4 includes at least one of the following: i1,4,1, i1,4,2, and i1,4,3, which are used for different panels or finer phase adjustment. The PMI includes an X2 information field, i.e., a bandwidth PMI or a per-subband PMI, including at least one of the following: 1. i2, i2,0, i2,1, and i2,2.

[0160] In some embodiments, the names of the first information, the second information, the third information, and the fourth information are not limited.

[0161] Step S2104 , the terminal 101 sends first information to the network device 102 .

[0162] In some embodiments, the network device 102 receives the first information sent by the terminal 101 .

[0163] In some embodiments, the network device 102 receives the first information sent by the terminal 101 through a physical uplink control channel (PUCCH).

[0164] In some embodiments, the network device 102 receives the first information sent by the terminal 101 through a physical uplink shared channel (PUSCH).

[0165] In some embodiments, the network device can control the data sent by multiple TRPs to arrive at the terminal as simultaneously as possible based on the first information.

[0166] In some embodiments, the first information includes difference information of different reference signal resources, and the network device can control the data sent by multiple TRPs to arrive at the terminal as simultaneously as possible based on the difference information.

[0167] In some embodiments, the first information includes third information, and the network device can determine the reference signal resource according to the third information.

[0168] In some embodiments, the first information includes fourth information, and the network device can determine the reference signal resources reported by the terminal and the reference signal resources discarded or quantized to a fixed value by the terminal based on the fourth information.

[0169] FIG3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3a, the embodiment of the present disclosure relates to a communication method, which is executed by terminal 101 and includes:

[0170] Step S3101: Acquire reference signal resources.

[0171] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0172] In some embodiments, the terminal 101 receives reference signal resources sent by the network device 102, but is not limited thereto and may also receive reference signal resources sent by other entities.

[0173] In some embodiments, terminal 101 obtains reference signal resources specified by the protocol.

[0174] In some embodiments, terminal 101 obtains reference signal resources from upper layer(s).

[0175] In some embodiments, terminal 101 performs processing to obtain reference signal resources.

[0176] In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by the reference signal resource, or the above function is default or acquiescent.

[0177] Step S3102, obtaining second information.

[0178] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0179] In some embodiments, the terminal 101 receives the second information sent by the network device 102, but is not limited thereto and may also receive the second information sent by other entities.

[0180] In some embodiments, terminal 101 obtains second information specified by the protocol.

[0181] In some embodiments, terminal 101 obtains the second information from upper layer(s).

[0182] In some embodiments, terminal 101 performs processing to obtain the second information.

[0183] In some embodiments, step S3102 is omitted, and the terminal 101 autonomously implements the function indicated by the second information, or the above function is default or acquiescent.

[0184] Step S3103: Determine first information based on the reference signal resource.

[0185] The optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0186] In some embodiments, the first information is obtained based on a reference signal resource.

[0187] Step S3104, sending the first information.

[0188] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0189] In some embodiments, the terminal 101 may send the first information to the network device 102, but is not limited thereto and may also send the first information to other entities.

[0190] FIG3b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3b, the present disclosure embodiment relates to a communication method, which is executed by terminal 101 and includes:

[0191] Step S3201: Acquire reference signal resources.

[0192] The optional implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0193] In some embodiments, the terminal 101 receives reference signal resources sent by the network device 102, but is not limited thereto and may also receive reference signal resources sent by other entities.

[0194] In some embodiments, terminal 101 obtains reference signal resources specified by the protocol.

[0195] In some embodiments, terminal 101 obtains reference signal resources from upper layer(s).

[0196] In some embodiments, terminal 101 performs processing to obtain reference signal resources.

[0197] In some embodiments, step S3201 is omitted, and the terminal 101 autonomously implements the function indicated by the reference signal resource, or the above function is default or acquiescent.

[0198] Step S3202: Determine first information based on reference signal resources.

[0199] The optional implementation of step S3202 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0200] In some embodiments, the first information is obtained based on a reference signal resource.

[0201] Step S3203, sending the first information.

[0202] The optional implementation of step S3203 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0203] In some embodiments, the terminal 101 may send the first information to the network device 102, but is not limited thereto and may also send the first information to other entities.

[0204] In some embodiments, the difference information includes at least one of the following: a time difference corresponding to different reference signal resources, a frequency offset corresponding to different reference signal resources, or a phase offset corresponding to different reference signal resources.

[0205] In some embodiments, for the reference signal resources on the frequency band FR1, the reference point corresponding to the first information is the antenna connector of the terminal.

[0206] In some embodiments, for the reference signal resource on FR2, the reference point corresponding to the first information is the antenna of the terminal.

[0207] In some embodiments, for the reference signal resource on FR2, the first information is obtained based on the reference signal resource in the following manner: the first information is obtained based on the combined signal measurement on multiple antenna elements corresponding to the terminal receiver branch, and the combined information is the signal transmitted on the reference signal resource on FR2.

[0208] In some embodiments, the first information includes difference information between the designated reference signal resource and other reference signal resources, and the designated reference signal resource is determined using at least one of the following methods: the terminal determines the reference signal resource corresponding to the earliest arriving reference signal among the received reference signal resources as the designated reference signal resource. The terminal determines the reference signal resource corresponding to the earliest arriving reference signal among the reported reference signal resources as the designated reference signal resource, and the reported multiple reference signal resources include reference signal resources and / or designated reference signal resources for which the corresponding first information is reported. The designated reference signal resource is determined based on second information sent by the network device, where the second information is used to indicate the designated reference signal resource. The terminal determines the reference signal resource with the smallest reference signal resource index among the received reference signal resources as the designated reference signal resource. The terminal determines the reference signal resource with the smallest reference signal resource index among the reported reference signal resources as the designated reference signal resource.

[0209] In some embodiments, the first information includes third information, and the third information is used to indicate a designated reference signal resource.

[0210] In some embodiments, the first information includes fourth information, and the fourth information is used to indicate the reported reference signal resources. The reported multiple reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information.

[0211] In some embodiments, the time difference is determined based on at least one of a time slot and a symbol corresponding to the reference signal resource.

[0212] In some embodiments, one reference signal resource corresponds to one or a group of first information, or one reference signal resource corresponds to multiple or multiple groups of first information, wherein each or each group of first information corresponds to a path.

[0213] In some embodiments, the first information is sent based on a channel state information feedback framework (CSI), and the first information is reported independently of at least one of the following: a channel quality indicator (CQI); a precoding matrix indicator (PMI); a classification indicator (RI); a channel state information reference signal resource indicator (CRI); a layer indicator (LI); a layer 1 reference signal received power (L1-RSRP); a layer 1 signal-to-interference plus noise ratio (L1-SINR); and a time domain channel property (TDCP).

[0214] FIG4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4a , the present disclosure embodiment relates to a communication method, which is executed by a network device 102 and includes:

[0215] Step S4101: Send reference signal resources.

[0216] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0217] In some embodiments, the network device 102 sends the reference signal resource to the terminal 101, but is not limited thereto and may also send the reference signal resource to other entities.

[0218] Step S4102, sending the second information.

[0219] The optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0220] In some embodiments, the network device 102 sends the second information to the terminal 101, but is not limited thereto and may also send the second information to other entities.

[0221] Step S4103, obtaining first information.

[0222] The optional implementation of step S4103 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0223] In some embodiments, the network device 102 receives reference signal resources sent by the terminal 101, but is not limited thereto and may also receive reference signal resources sent by other entities.

[0224] In some embodiments, the network device 102 obtains reference signal resources specified by the protocol.

[0225] In some embodiments, the network device 102 obtains reference signal resources from upper layer(s).

[0226] In some embodiments, the network device 102 performs processing to obtain the reference signal resources.

[0227] In some embodiments, step S4103 is omitted, and the network device 102 autonomously implements the function indicated by the reference signal resource, or the above function is default or by default.

[0228] FIG4 b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 b , the present disclosure embodiment relates to a communication method, which is executed by the network device 102 and includes:

[0229] Step S4201: Send reference signal resources.

[0230] The optional implementation of step S4201 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0231] In some embodiments, the network device 102 sends the reference signal resource to the terminal 101, but is not limited thereto and may also send the reference signal resource to other entities.

[0232] Step S4202, obtain first information.

[0233] The optional implementation of step S4202 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0234] In some embodiments, the network device 102 receives reference signal resources sent by the terminal 101, but is not limited thereto and may also receive reference signal resources sent by other entities.

[0235] In some embodiments, the network device 102 obtains reference signal resources specified by the protocol.

[0236] In some embodiments, the network device 102 obtains reference signal resources from upper layer(s).

[0237] In some embodiments, the network device 102 performs processing to obtain the reference signal resources.

[0238] In some embodiments, step S4202 is omitted, and the network device 102 autonomously implements the function indicated by the reference signal resource, or the above function is default or by default.

[0239] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0240] Step S5101 : The network device 102 sends a reference signal resource to the terminal 101 .

[0241] The optional implementation of step S5101 can be found in S2101 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0242] In some embodiments, the above method may include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, etc., which will not be repeated here.

[0243] Step S5102: Terminal 101 determines first information based on reference signal resources.

[0244] The optional implementation of step S5102 can be found in S2103 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0245] In some embodiments, the above method may include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, etc., which will not be repeated here.

[0246] Step S5103 , the terminal 101 sends the first information to the network device 102 .

[0247] The optional implementation of step S5103 can be found in S2104 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0248] In some embodiments, the above method may include the method of the above embodiments related to the communication system 100, the terminal 101, the network device 102, etc., which will not be repeated here.

[0249] The present disclosure provides a communication method as follows:

[0250] In some embodiments, the terminal receives a reference signal resource configuration, performs measurements based on the reference signal resource configuration, and reports first channel state information. The first channel state information includes a time difference and / or a frequency / phase offset between different CSI-RS resources. The frequency offset is used as an example for description below.

[0251] In some embodiments, the reference point corresponding to the time difference and / or frequency / phase offset is

[0252] a)For frequency range 1, the reference point shall be the antenna connector of the UE.

[0253] b)For frequency range 2, the reference point for the Time difference / frequency offset shall be the antenna of the UE.(prefer this one)

[0254] In some embodiments, the reference signal resource includes a CMR, which includes multiple CSI-RS resources. The terminal determines a Reference CSI-RS resource using the following method:

[0255] a) Terminal reporting.

[0256] i. The terminal measures itself and determines the CSI-RS resource corresponding to the earliest arriving CSI-RS as the Reference resource;

[0257] ii. The terminal measures and reports the time difference or frequency difference of the CSI-RS resources reported by the terminal.

[0258] In some embodiments, for example, if the arrival time difference between a certain CSI-RS resource and multiple other CSI-RS resources is greater than a threshold, then this CSI-RS resource can be discarded and does not need to be reported, or can be quantized to a fixed value.

[0259] In some embodiments, for example, if the frequency offset between a certain CSI-RS resource and multiple other CSI-RS resources is greater than a threshold, then this CSI-RS resource can be discarded and does not need to be reported, or quantized to a fixed value.

[0260] In some embodiments, if it is discarded or quantized to a fixed value, the terminal can inform the network device, and the specific indication method is N bits. For example, the CMR includes N CSI-RS resources, and each CSI-RS resource corresponds to one bit. For the CSI-RS resource that is not discarded or quantized to a fixed value, the bit is "1", otherwise it is "0".

[0261] In some embodiments, in this case, the Reference resource may also default to the first CSI-RS resource whose bit is 1.

[0262] b) Base station indication.

[0263] i. Display indication: which of the multiple CSI-RS resources contained in the CMR is given

[0264] ii. Implicit indication: the first of multiple CSI-RS resources included in the CMR

[0265] In some embodiments, after determining the Reference CSI-RS resource,

[0266] a) Report the difference between the RS arrival time on other CSI-RS resources and the RS arrival time on the Reference CSI-RS resource.

[0267] b) Report the difference between the frequency offset corresponding to the RS on other CSI-RS resources and the frequency offset corresponding to the RS on the Reference CSI-RS resource.

[0268] In some embodiments, the arrival time difference is defined as the time difference between two different RSs arriving at the UE side.

[0269] a) The arrival time can take into account the slot and symbol positions corresponding to the two RSs, that is, the arrival time should be added with the impact of the difference in slot and symbol positions corresponding to the CSI-RS resource.

[0270] b) Or the arrival time may not consider the slot and symbol positions corresponding to the two RSs, that is, it is assumed that the slot and symbol positions corresponding to the two RSs are the same, and only includes the arrival time difference caused by the different positions or propagation paths of the two TRPs.

[0271] c) Time difference, like frequency offset below, can be path-sensitive or path-insensitive.

[0272] In some embodiments, the frequency offset difference is defined as the frequency difference between two different RSs arriving at the UE side.

[0273] a) Doppler shift difference per resource. A resource pair corresponds to a doppler shift offset. A resource pair includes a target resource and a reference resource.

[0274] b) Doppler shift difference per CIR. A resource pair corresponds to multiple Doppler shift offsets. A resource pair includes a target resource and a reference resource. Multiple Doppler shift offsets correspond to different path lengths. Alternatively, a resource pair corresponds to a single Doppler shift offset, which only includes the Doppler shift difference corresponding to the strongest path length.

[0275] In some embodiments, the first channel state is configured and reported based on the CSI feedback framework, configured to report time difference and / or frequency offset, and reported independently from CQI / PMI / RI / CRI / LI / L1-RSRP / L1-SINR / TDCP, etc.

[0276] a)CRI: CSI-RS resource indicator

[0277] b)RI:Rank Indicator

[0278] c) PMI: Precoding Matrix Indicator, PMI includes at least one of the following

[0279] i.X1 information domain: wideband PMI, including at least one of the following:

[0280] 1.Codebook index i1

[0281] a) i1 includes i1,1 (related to N1 and O1, N1 is the number of antenna ports in the first dimension, O1 is the number of oversampling or beams in the first dimension) and i1,2 (related to N2 and O2, N2 is the number of antenna ports in the second dimension, O2 is the number of oversampling or beams in the second dimension).

[0282] b) or i1 includes i1,1 (related to N1 and O1, N1 is the number of antenna ports in the first dimension, O1 is the number of oversampling or beams in the first dimension), i1,2 (related to N2 and O2, N2 is the number of antenna ports in the second dimension, O2 is the number of oversampling or beams in the second dimension) and i1,3 (for the case when RANK>1, that is, the number of layers is greater than 1, mainly used to determine the antenna ports between different layers).

[0283] c) or i1 includes i1,1, i1,2 and i1,4 (for different panels).

[0284] d) i1,4 includes at least one of the following: i1,4,1, i1,4,2, i1,4,3

[0285] i. Three for different panels or finer phase adjustment

[0286] ii. X2 information field: wideband PMI or per suband PMI, including at least one of the following:

[0287] 1.i2,i2,0,i2,1,i2,2.

[0288] Figure 6a is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in Figure 6a, terminal 6100 may include a transceiver module 6101 and a processing module 6102. Transceiver module 6101 is configured to receive reference signal resources sent by a network device. Processing module 6102 is configured to determine first information based on the reference signal resources, where the first information includes difference information between different reference signal resources. Transceiver module 6101 is further configured to send the first information to the network device.

[0289] In some embodiments, the difference information includes at least one of the following: a time difference corresponding to different reference signal resources, a frequency offset corresponding to different reference signal resources, or a phase offset corresponding to different reference signal resources.

[0290] In some embodiments, for the reference signal resources on the frequency band FR1, the reference point corresponding to the first information is the antenna connector of the terminal.

[0291] In some embodiments, for the reference signal resource on FR2, the reference point corresponding to the first information is the antenna of the terminal.

[0292] In some embodiments, for the reference signal resources on FR2, the processing module 6102 determines the first information based on the reference signal resources in the following manner: the first information is determined based on the combined signal measurement on multiple antenna elements corresponding to the terminal receiver branch, and the combined information is the signal transmitted on the reference signal resource on FR2.

[0293] In some embodiments, the first information includes difference information between the designated reference signal resource and other reference signal resources, and the processing module 6102 determines the designated reference signal resource using at least one of the following methods: the terminal determines the reference signal resource corresponding to the earliest arriving reference signal as the designated reference signal resource. The terminal determines the reference signal resource corresponding to the earliest arriving reference signal among the reported reference signal resources as the designated reference signal resource, where the reported multiple reference signal resources include reference signal resources and / or designated reference signal resources for which corresponding first information is reported. The designated reference signal resource is determined based on second information sent by the network device, where the second information is used to indicate the designated reference signal resource. The terminal determines the reference signal resource with the smallest reference signal resource index among the received reference signal resources as the designated reference signal resource.

[0294] In some embodiments, the first information includes third information, and the third information is used to indicate a designated reference signal resource.

[0295] In some embodiments, the first information includes fourth information, and the fourth information is used to indicate the reported reference signal resources. The reported reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information.

[0296] In some embodiments, the processing module 6102 determines the time difference based on at least one of a time slot and a symbol corresponding to the reference signal resource.

[0297] In some embodiments, one reference signal resource corresponds to one or a group of first information, or one reference signal resource corresponds to multiple or multiple groups of first information, wherein each or each group of first information corresponds to a path.

[0298] In some embodiments, the transceiver module 6101 sends the first information based on a channel state information feedback framework (CSI). The transceiver module 6101 reports the first information independently of at least one of the following: a channel quality indicator (CQI); a precoding matrix indicator (PMI); a classification indicator (RI); a channel state information reference signal resource indicator (CRI); a layer indicator (LI); a layer 1 reference signal received power (L1-RSRP); a layer 1 signal-to-interference plus noise ratio (L1-SINR); and a time domain channel property (TDCP).

[0299] Figure 6b is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure. As shown in Figure 6b, the network device 6200 may include: a transceiver module 6201. The transceiver module 6201 is configured to send reference signal resources to a terminal and receive first information sent by the terminal, the first information including difference information between different reference signal resources.

[0300] In some embodiments, the first information includes at least one of the following: a time difference corresponding to different reference signal resources, a frequency offset corresponding to different reference signal resources, or a phase offset corresponding to different reference signal resources.

[0301] In some embodiments, for the reference signal resources on the frequency band FR1, the reference point corresponding to the first information is the antenna connector of the terminal.

[0302] In some embodiments, for the reference signal resource on FR2, the reference point corresponding to the first information is the antenna of the terminal.

[0303] In some embodiments, the first information includes difference information between the designated reference signal resource and other reference signal resources.

[0304] In some embodiments, the first information includes third information, and the third information is used to indicate a designated reference signal resource.

[0305] In some embodiments, the first information further includes fourth information, and the fourth information is used to indicate the reported reference signal resources, where the reported reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information.

[0306] In some embodiments, the time difference is determined based on at least one of a time slot and a symbol corresponding to the reference signal resource.

[0307] In some embodiments, one reference signal resource corresponds to one or a group of first information, or one reference signal resource corresponds to multiple or multiple groups of first information, wherein each or each group of first information corresponds to a path.

[0308] In some embodiments, the transceiver module receives the first information based on a channel state information feedback framework (CSI), and the transceiver module receives the first information independently of at least one of the following: a channel quality indicator (CQI); a precoding matrix indicator (PMI); a classification indicator (RI); a channel state information reference signal resource indicator (CRI); a layer indicator (LI); a layer 1 reference signal received power (L1-RSRP); a layer 1 signal-to-interference plus noise ratio (L1-SINR); and a time domain channel property (TDCP).

[0309] In some embodiments, the network device 6200 may further include a processing module 6202 for performing optional steps.

[0310] Figure 7a is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device, a terminal, a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above methods. Optionally, the network device can be an access network device, a core network device, or the like. Optionally, the terminal can be a user equipment, or the like. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0311] As shown in Figure 7a, communication device 7100 includes one or more processors 7101. Processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, while the central processing unit can be used to control the communication device, execute programs, and process program data. Communication device 7100 is used to perform any of the above methods. Optionally, the communication device can be a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.

[0312] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0313] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceiver 7103 performs the communication step S2101 such as sending and / or receiving in the above method, and the processor 7101 performs other steps.

[0314] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0315] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102. The interface circuit 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0316] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0317] FIG7 b is a schematic diagram of the structure of a chip 7200 according to an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7 b , but the present disclosure is not limited thereto.

[0318] The chip 7200 includes one or more processors 7201 , and the chip 7200 is configured to execute any of the above methods.

[0319] In some embodiments, the chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to the memory 7203. The interface circuit 7202 can be used to receive signals from the memory 7203 or other devices, and can be used to send signals to the memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in the memory 7203 and send the instructions to the processor 7201.

[0320] In some embodiments, the interface circuit 7202 executes the communication step S2101 of sending and / or receiving in the above method, and the processor 7201 executes other steps.

[0321] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0322] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0323] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 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 thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0324] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0325] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, applied to a terminal, characterized in that: The method comprises: receiving a reference signal resource sent by a network device; determining first information based on the reference signal resources, wherein the first information includes difference information between different reference signal resources; and The first information is sent to the network device.

2. The method according to claim 1, characterized in that The difference information includes at least one of the following: time differences corresponding to different reference signal resources; frequency offsets corresponding to different reference signal resources; Phase offsets corresponding to different reference signal resources.

3. The method according to claim 1 or 2, characterized in that For the reference signal resources in the frequency band FR1, the reference point corresponding to the first information is the antenna connector of the terminal.

4. The method according to claim 1 or 2, characterized in that For the reference signal resources in the frequency band FR2, the reference point corresponding to the first information is the antenna of the terminal.

5. The method according to claim 3, characterized in that For the reference signal resources in the frequency band FR2, the first information is determined in the following manner: The first information is obtained based on combined signal measurements on multiple antenna elements corresponding to the receiver branch of the terminal, where the combined signal is a signal transmitted on the reference signal resource on the FR2.

6. The method according to any one of claims 1 to 5, characterized in that The first information includes difference information between the designated reference signal resource and other reference signal resources, and the designated reference signal resource is determined by the terminal in at least one of the following ways: Determining, among the received reference signal resources, a reference signal resource corresponding to a reference signal that arrives earliest as a designated reference signal resource; Determining, among the reported reference signal resources, a reference signal resource corresponding to a reference signal that arrives earliest as a designated reference signal resource, where the reported reference signal resource includes a reference signal resource for which corresponding first information is reported and / or a designated reference signal resource; determining a designated reference signal resource based on second information sent by the network device, where the second information is used to indicate the designated reference signal resource; Determining, among the received reference signal resources, a reference signal resource with the smallest reference signal resource index as a designated reference signal resource; A reference signal resource with the smallest reference signal resource index among the reported reference signal resources is determined as the designated reference signal resource.

7. The method according to claim 6, characterized in that The first information includes third information, and the third information is used to indicate a designated reference signal resource.

8. The method according to claim 1, characterized in that The first information includes fourth information, where the fourth information is used to indicate the reported reference signal resource, and the at least one reported reference signal resource includes a reference signal resource and / or a designated reference signal resource that reports the corresponding first information.

9. The method according to claim 2, characterized in that The time difference is determined based on at least one of a time slot and a symbol corresponding to the reference signal resource.

10. The method according to claim 2, characterized in that A pair of reference signal resources corresponds to one or a group of difference information; or A pair of reference signal resources corresponds to multiple or multiple groups of difference information, wherein each or each group of difference information corresponds to a path, wherein a pair of reference signal resources includes a reference signal resource and a designated reference signal resource.

11. The method according to any one of claims 1 to 10, characterized in that The first information is sent based on a channel state information feedback framework CSI, and the first information is reported independently of at least one of the following: Channel quality indication CQI; Precoding matrix indicator PMI; Classification indication RI; Channel state information reference signal resource indication CRI; Layer indication LI; Layer 1 reference signal received power L1-RSRP; Layer 1 signal-to-interference-and-noise ratio L1-SINR; Time domain channel properties TDCP.

12. A communication method, applied to a network device, characterized in that: The method comprises: Sending a reference signal resource to the terminal; First information sent by a receiving terminal is received, where the first information includes difference information between different reference signal resources.

13. The method according to claim 12, characterized in that The difference information includes at least one of the following: time differences corresponding to different reference signal resources; frequency offsets corresponding to different reference signal resources; Phase offsets corresponding to different reference signal resources.

14. The method according to claim 12 or 13, characterized in that For the reference signal resources in the frequency band FR1, the reference point corresponding to the first information is the antenna connector of the terminal.

15. The method according to claim 12 or 13, characterized in that For the reference signal resources in the frequency band FR2, the reference point corresponding to the first information is the antenna of the terminal.

16. The method according to claim 12, characterized in that The first information includes difference information between the designated reference signal resources and other reference signal resources.

17. The method according to claim 12, wherein: The first information includes third information, and the third information is used to indicate a designated reference signal resource.

18. The method according to claim 12, characterized in that The first information includes fourth information, where the fourth information is used to indicate the reported reference signal resources. The reported reference signal resources include the reference signal resources and / or designated reference signal resources that report the corresponding first information.

19. The method according to claim 13, wherein The time difference is determined based on at least one of a time slot and a symbol corresponding to the reference signal resource.

20. The method according to claim 13, wherein A pair of reference signal resources corresponds to one or a group of difference information; or A pair of reference signal resources corresponds to multiple or multiple groups of difference information, wherein each or each group of difference information corresponds to a path, wherein a pair of reference signal resources includes a reference signal resource and a designated reference signal resource.

21. The method according to any one of claims 12 to 20, characterized in that: The first information is received based on a channel state information feedback framework CSI, and the first information is received independently of at least one of the following: Channel quality indication CQI; Precoding matrix indicator PMI; Classification indication RI; Channel state information reference signal resource indication CRI; Layer indication LI; Layer 1 reference signal received power L1-RSRP; Layer 1 signal-to-interference-and-noise ratio L1-SINR; Time domain channel properties TDCP.

22. A communication method, characterized in that: The method comprises: The network device sends a reference signal resource to the terminal; The terminal obtains first information based on the reference signal resource, where the first information includes difference information between different reference signal resources; The terminal sends the first information to the network device.

23. A terminal, characterized in that: include: A transceiver module, configured to receive reference signal resources sent by a network device; a processing module, configured to determine first information based on the reference signal resources, where the first information includes difference information between different reference signal resources; The transceiver module is further configured to send the first information to the network device.

24. A network device, characterized in that: include: A transceiver module, configured to send reference signal resources to a terminal; First information sent by a receiving terminal is received, where the first information includes difference information between different reference signal resources.

25. A terminal, characterized in that: include: one or more processors; The processor is configured to execute the communication method described in any one of claims 1 to 11.

26. A network device, characterized in that: include: one or more processors; The processor is configured to execute the communication method described in any one of claims 12 to 21.

27. A communication system, characterized in that: The invention comprises a terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1 to 11, and the network device is configured to implement the communication method according to any one of claims 12 to 21.

28. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 11 or 12 to 21.

29. A program product, characterized in that include: A computer program, which, when executed by a communication device, causes the communication device to execute the communication method according to any one of claims 1 to 11 or 12 to 21.

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