Information processing method and apparatus, and communication system

Abstract

Provided in embodiments of the present application are an information processing method and apparatus, and a communication system. The information processing method comprises: a terminal device receives channel state information reference signal (CSI-RS) resource configuration information, wherein the CSI-RS resource configuration information is used for configuring at least one CSI-RS resource set, each CSI-RS resource set comprises at least one CSI-RS resource used for transmitting a CSI-RS, the CSI-RS resource configuration information at least comprises first information, and the first information is used for indicating association information between at least one CSI-RS and at least one source reference signal; and the terminal device reports channel state information (CSI) on the basis of the CSI-RS resource configuration information.

Description

Information processing method, apparatus, and communication system TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communication technology. BACKGROUND

[0002] In a new radio (NR) system, a user can measure a current channel according to channel state information (CSI) resource setting and CSI reporting setting configured by a base station, and report and feed back the CSI by carrying the CSI in uplink control information (UCI) in an uplink channel (such as a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH)).

[0003] A multiple-transmission reception point (M-TRP) cooperative transmission scheme is an important technology for improving cell edge throughput and providing more balanced service quality for a serving cell in the NR system. The M-TRP transmission scheme can be roughly divided into two types: a coherent joint transmission (C-JT) scheme and a non-coherent joint transmission (NC-JT) scheme.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely describing the technical solutions of the present application and facilitating the understanding of those skilled in the art. The above technical solutions cannot be considered as known to those skilled in the art merely because they are described in the background section of the present application.

[0005] SUMMARY

[0006] The inventors find that in the existing transmission scheme, for example, the C-JT scheme, only data and / or reference signal transmission in an ideal scenario (e.g., ideal backhaul, ideal synchronization, etc.) is considered. However, in a real scenario, the geographical locations of different transmission points result in a large difference in the delay transmission characteristics and frequency offset characteristics of different transmission points, which in turn causes the signals to be unable to achieve complete synchronous transmission when the channels of different signals are superimposed according to different delays and frequency offsets, and unable to achieve ideal coherent transmission. In addition, the non-ideal backhaul caused by the radio frequency units of different transmission points also causes delays and asynchronization in the backhaul between different transmission points and a central processing unit (CU). This causes the CSI fed back by the UE to still be unable to accurately and completely reflect the real channel state quality experienced by the resource ports of the C-JT, even under enhanced CSI feedback (e.g., based on Release 18 (R18, Release 10) enhanced CSI feedback, etc.). This reduces the accuracy and reliability of data scheduling, and causes the data transmission performance, single user, and overall network throughput to decrease.

[0007] To address at least one of the above problems or other similar problems, embodiments of the present application provide an information processing method, apparatus, and communication system.

[0008] According to an aspect of embodiments of the present application, an information processing apparatus configured to be applied to a terminal device is provided, and the apparatus includes: a receiving unit configured to receive CSI-RS (Channel State Information Reference Signal) resource configuration information; wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets includes at least one CSI-RS resource used to transmit a CSI-RS, and the CSI-RS resource configuration information includes at least first information used to indicate association information of at least one CSI-RS and at least one source reference signal; and a sending unit configured to report CSI (Channel State Information) based on the CSI-RS resource configuration information.

[0009] According to another aspect of embodiments of the present application, an information processing method applied to a terminal device is provided, and the method includes: receiving, by the terminal device, CSI-RS (Channel State Information Reference Signal) resource configuration information; wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets includes at least one CSI-RS resource used to transmit a CSI-RS, and the CSI-RS resource configuration information includes at least first information used to indicate association information of at least one CSI-RS and at least one source reference signal; and reporting, by the terminal device, CSI (Channel State Information) based on the CSI-RS resource configuration information.

[0010] According to another aspect of the embodiments of the present application, there is provided an information processing apparatus configured to be applied to a network device, the apparatus comprising: a sending unit configured to send CSI-RS (Channel State Information Reference Signal) resource configuration information; wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets comprises at least one CSI-RS resource used to transmit a CSI-RS, and the CSI-RS resource configuration information comprises at least first information used to indicate association information of at least one CSI-RS and at least one source reference signal; and a receiving unit configured to receive CSI reported based on the CSI-RS resource configuration information.

[0011] According to another aspect of the embodiments of the present application, there is provided an information processing method applied to a network device, the method comprising: sending, by the network device, CSI-RS (Channel State Information Reference Signal) resource configuration information; wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets comprises at least one CSI-RS resource used to transmit a CSI-RS, and the CSI-RS resource configuration information comprises at least first information used to indicate association information of at least one CSI-RS and at least one source reference signal; and receiving, by the network device, CSI reported based on the CSI-RS resource configuration information.

[0012] According to another aspect of the embodiments of the present application, there is provided a communication system comprising a network device and a terminal device, wherein the network device sends CSI-RS (Channel State Information Reference Signal) resource configuration information; and the terminal device receives the CSI-RS resource configuration information and reports CSI (Channel State Information) according to the CSI-RS resource configuration information, wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets comprises at least one CSI-RS resource used to transmit a CSI-RS, and the CSI-RS resource configuration information comprises at least first information used to indicate association information of at least one CSI-RS and at least one source reference signal.

[0013] One of beneficial effects of the embodiments of the present application is that the terminal device receives the CSI-RS resource configuration information and reports the CSI based on the CSI-RS resource configuration information. Since the first information in the CSI-RS resource configuration information is used to indicate the association information of at least one CSI-RS and at least one source reference signal, the terminal device can measure the CSI-RS according to the association relationship, thereby improving the reliability and accuracy of the CSI, helping to improve the reliability and accuracy of data scheduling, improving the transmission efficiency, enhancing the data transmission performance, increasing the single user and network overall throughput.

[0014] Specific embodiments of the application are disclosed herein, and represented in the accompanying drawings, illustrating the principles of the application in a manner that can be employed by those skilled in the art. It is understood that the embodiments of the application are not limited in scope to the specific embodiments described herein. Embodiments of the application include many alterations, modifications and equivalents that are within the scope of the appended claims and their spirit.

[0015] Features described and / or illustrated with respect to one implementation can be used in one or more other implementations in the same or similar manner, in combination with or in place of features in other implementations, and / or in combination with or in place of one or more features described and / or illustrated with respect to another implementation.

[0016] It should be emphasized that the term "comprises / comprising" when used in this specification is taken to mean the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0017] Elements and features depicted in one drawing or embodiment of the application can be combined with elements and features depicted in one or more other drawings or embodiments in any manner.

[0018] FIG. 1 is a schematic diagram of a communication system according to an embodiment of the application;

[0019] FIG. 2 is a schematic diagram of a transmission scheme;

[0020] FIG. 3 is a schematic diagram of transmission of multiple TRPs according to an embodiment of the application;

[0021] FIG. 4 is a schematic diagram of an information processing method according to an embodiment of the application;

[0022] FIG. 5 is another schematic diagram of transmission of multiple TRPs according to an embodiment of the application;

[0023] FIG. 6 is a schematic diagram of an information processing apparatus according to an embodiment of the application;

[0024] FIG. 7 is another schematic diagram of the information processing method according to an embodiment of the present application;

[0025] FIG. 8 is another schematic diagram of the information processing apparatus according to an embodiment of the present application;

[0026] FIG. 9 is a schematic diagram of the network device according to an embodiment of the present application;

[0027] FIG. 10 is a schematic diagram of the terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] The foregoing and other features of the present application will become apparent to those skilled in the art upon consideration of the following description of specific embodiments of the present application, which are not intended to limit the scope of the application. In describing specific embodiments of the application, specific terminology is used for the sake of clarity. However, the use of such terminology is not intended to limit the scope of the application, since alternative embodiments of the application can employ techniques that are similar to those described in connection with the described embodiments.

[0029] In the embodiments of the present application, the terms "first", "second", and the like are used to distinguish different elements from each other, but do not indicate spatial arrangement or time sequence of the elements, and the elements should not be limited by these terms. The term "and / or" includes any one and all combinations of the associated listed terms. The terms "comprise", "include", "have", and the like, refer to the presence of the stated features, elements, elements, or components, but do not exclude the presence or addition of one or more other features, elements, elements, or components.

[0030] In the embodiments of the present application, the singular form "a", "an", and the like includes the plural form, should be understood broadly as "one" or "a kind of", and not limited to the meaning of "one"; in addition, the term "said" should be understood as including both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "according to" should be understood as "at least partially according to", and the term "based on" should be understood as "at least partially based on", unless the context clearly indicates otherwise.

[0031] In the embodiments of the present application, the term "communication network" or "wireless communication network" can refer to a network that complies with any communication standard, such as Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.

[0032] Also, communication between devices in a communication system can be in accordance with communication protocols of any stage, for example, can include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G, New Radio (NR), 6G, and the like, and / or other currently known or to be developed in the future communication protocols.

[0033] In embodiments of the present application, the term "network device" refers to, for example, a device that accesses a terminal device to a communication network and provides services for the terminal device in a communication system. The network device can include, but is not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), transmission point (TP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), and the like.

[0034] The base station can include, but is not limited to, the following: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), IAB donor, and the like, and can also include remote radio head (RRH), remote radio unit (RRU), relay, or low power node (such as femto, pico, and the like). Also, the term "base station" can include some or all of their functions, and each base station can provide communication coverage for a specific geographic area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0035] In embodiments of the present application, the term "user equipment" (UE) refers to, for example, a device that accesses a communication network through a network device and receives network services, which can also be referred to as "terminal equipment" (TE). The terminal equipment can be fixed or mobile, and can also be referred to as a mobile station (MS), a terminal, a user, a subscriber station (SS), an access terminal (AT), a station, a mobile terminal (MT), and the like.

[0036] The terminal device can include, but is not limited to, the following devices: cellular phone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, machine type communication device, laptop, cordless phone, smartphone, smartwatch, digital camera, and the like.

[0037] For another example, in scenarios such as Internet of Things (IoT), the terminal device can also be a machine or apparatus that performs monitoring or measurement, which can include, but is not limited to, the following: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device to device (D2D) terminal, machine to machine (M2M) terminal, and the like.

[0038] In addition, the term "network side" or "network device side" refers to the side of the network, which can be a certain base station, or can include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the side of the user or terminal, which can be a certain UE, or can include one or more terminal devices as described above. In this article, "device" can refer to a network device or a terminal device without special indication.

[0039] In the following description, the terms "uplink control signal" and "uplink control information (UCI)" or "physical uplink control channel (PUCCH)" can be interchangeable without causing confusion, and the terms "uplink data signal" and "uplink data information" or "physical uplink shared channel (PUSCH)" can be interchangeable;

[0040] The terms "downlink control signal" and "downlink control information (DCI)" or "physical downlink control channel (PDCCH)" can be interchangeable, and the terms "downlink data signal" and "downlink data information" or "physical downlink shared channel (PDSCH)" can be interchangeable.

[0041] In addition, the uplink signal can include an uplink data signal and / or an uplink control signal and / or a PRACH and / or a SRS (sounding reference signal) and the like, and can also be referred to as an uplink transmission (UL transmission) or uplink information or an uplink channel. Transmitting / receiving the uplink transmission on the uplink resource can be understood as transmitting / receiving the uplink transmission using the uplink resource. The downlink signal can include a downlink data signal and / or a downlink control signal and / or a synchronization signal (SS, for example, PSS / SSS) and / or a broadcast channel (PBCH) and / or an SSB (SS / PBCH block, including PSS, SSS and PBCH and its DMRS) and / or a CSI-RS (channel state information reference signal) and the like, and can also be referred to as a downlink transmission (DL transmission) or downlink information or a downlink channel. Transmitting / receiving the downlink transmission on the downlink resource can be understood as transmitting / receiving the downlink transmission using the downlink resource. In the embodiments of the present application, the higher layer signaling can be, for example, radio resource control (RRC) signaling; the RRC signaling can include, for example, an RRC message, for example, a broadcast / common RRC message / signaling (for example, a master information block (MIB), system information), a dedicated RRC message / signaling; or an RRC information element (RRC IE); or information fields included in the RRC message or the RRC information element (or information fields included in the information fields). The higher layer signaling can also be, for example, medium access control layer (MAC) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.

[0042] In the embodiments of the present application, multiple means at least two, or two or more than two.

[0043] In the embodiments of the present application, predefined means defined by a protocol or determined according to a rule defined by a protocol, without additional configuration. Configuration / indication means that the network device is directly or indirectly configured / indicated by higher layer signaling and / or physical layer signaling. The configuration / indication can be configured / indicated by introducing a higher layer parameter in the higher layer signaling, and the higher layer parameter means information fields and / or information elements / information units / information elements (IE) in the higher layer signaling. The physical layer signaling can be, for example, control information (DCI) carried by a physical downlink control channel or control information carried by a sequence, but is not limited thereto.

[0044] For ease of description, a base station is taken as an example of an access network device in the following description. In the following description, “if”, “in the case of” and “when” can be used interchangeably without causing confusion.

[0045] The scenarios of the embodiments of the present application are described below by way of examples, but the present application is not limited thereto.

[0046] FIG. 1 is a schematic diagram of a communication system of the embodiments of the present application, which schematically illustrates a case taking a terminal device and a network device as examples. As shown in FIG. 1, the communication system 100 can include a network device 101 and terminal devices 102 and 103. For simplicity, FIG. 1 only takes two terminal devices and one network device as examples for illustration, but the embodiments of the present application are not limited thereto.

[0047] In the embodiments of the present application, the network device 101 and the terminal devices 102 and 103 can perform existing services or future implementable services transmission. For example, the services can include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC) and ultra-reliable and low-latency communication (URLLC), etc.

[0048] Among them, the terminal device 102 can send data to the network device 101, for example, using a licensed or unlicensed transmission mode. The network device 101 can receive data sent by one or more terminal devices 102, and feed back information to the terminal device 102, such as acknowledgement ACK / non-acknowledgement NACK information, etc., so that the terminal device 102 can confirm the end of the transmission process according to the feedback information, or can further perform new data transmission, or can perform data retransmission.

[0049] It is worth noting that FIG. 1 shows that both terminal devices 102 and 103 are within the coverage of the network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 can be outside the coverage of the network device 101, or one terminal device 102 is within the coverage of the network device 101 while the other terminal device 103 is outside the coverage of the network device 101.

[0050] The following describes the terms related to the present application, but the following explanations do not constitute a limitation on the embodiments of the present application.

[0051] In the embodiments of the present application, the high layer signaling may, for example, be radio resource control (RRC) signaling; for example, referred to as an RRC message (RRC message), for example, including a master information block (MIB), system information, a dedicated RRC message; or referred to as an RRC IE (RRC information element). The high layer signaling may, for example, also be MAC (Medium Access Control) signaling; or referred to as a MAC CE (MAC control element). However, the present application is not limited thereto.

[0052] In the following description, TP, transmission point, TRP, transmission and reception point, and transceiving node can be used interchangeably without causing confusion; multiple TRP, multi-TRP (multiple transmission and reception point), mTRP, multi-TRP, and MTRP can be used interchangeably; multi-point joint transmission, multi-transmission point cooperative transmission, and mTRP-based transmission can be used interchangeably.

[0053] In the following description, the terms "Doppler shift", "Doppler frequency offset", and "Doppler shift" can be used interchangeably.

[0054] FIG. 2 is a schematic diagram of a transmission scheme. In FIG. 2, (a) corresponds to a single-transmission reception point (S-TRP) scheme, (b) corresponds to a C-JT scheme, and (c) corresponds to an NC-JT scheme.

[0055] The specific difference between the C-JT scheme and the NC-JT scheme is reflected in the different mapping relationships of the layers to the multiple TRPs. For the C-JT scheme, all PDSCH / DMRS ports jointly transmitted from the multiple TRPs and signals from the multiple TRPs are coherently transmitted; for the NC-JT scheme, the PDSCH / DMRS ports are respectively transmitted from each TRP.

[0056] In the past standardization work, in Release 15 / 16 (Rel-15 / 16, R15 / 16), users all feedback or report CSI based on a single-transmission reception point (S-TRP) scheme, where the CSI includes a precoding matrix indicator (PMI), a rank indication (RI), a layer indication (LI), a channel quality indicator (CQI), and the like.

[0057] Release 17 (Rel-17, R17) supports CSI resource configuration and reporting enhancement of the NC-JT scheme. A UE can perform joint channel measurement based on reference signals transmitted by multiple transmission points (for example, M transmission points, M greater than or equal to 2) based on NC-JT, and report M PMIs, M RIs, M LIs, and N CQIs (single code word N = 1, double code word N = 2), and the like. Currently, R17 only supports CSI reporting based on a 'typeI single-panel' codebook configuration.

[0058] Release 18 (Rel-18, R18) supports CSI resource configuration and reporting enhancement of the C-JT scheme. A UE can perform joint channel measurement based on reference signals transmitted by multiple transmission points based on C-JT, and report complete CSI of one joint channel. Currently, R18 supports CSI reporting based on eTypeII and feTypeII codebook configurations.

[0059] In the C-JT scheme, each data layer is mapped to multiple TRPs / panels participating in cooperation through a weighting vector, which is equivalent to splicing multiple sub-arrays into a higher-dimensional virtual array. Therefore, the C-JT scheme can obtain higher beamforming / precoding / multiplexing gain, and significantly improve the throughput of users at the cell edge and the average throughput of the cell.

[0060] (1) In the current Rel-18 standardization process, the C-JT transmission scheme based on C-JT and the CSI reporting enhancement of C-JT in ideal time-frequency synchronization and backhaul scenarios are explicitly supported. A UE can perform joint channel measurement based on reference signals transmitted by K transmission points based on C-JT transmission, and jointly report a single PMI, RI, LI, and N CQIs (single code word N = 1, double code word N = 2), and the like.

[0061] (2) PMI / precoding reporting scheme: In the C-JT transmission scheme, support to calculate and jointly feedback the following precoding information based on K CSI-RS resources, the minimum width of frequency domain sub-band precoding is 2 PRBs:

[0062] wherein, w k (i) is the PMI information of the kth transmission point, 0≤k≤K.

[0063] (3) NR supports the measurement of time delay and Doppler frequency shift based on the time-frequency tracking reference signal TRS (Tracking Reference Signal), wherein:

[0064] a) TRS is configured in a TRS burst. X, Y, S t , N represent the length of the TRS burst, the TRS burst period, the TRS symbol interval and the number of symbols occupied by TRS in a slot, respectively. Wherein, X and Y are expressed by the number of slots. The design of TRS time domain structure is as follows:

[0065] For frequency range 1 (FR1), i.e. less than 6GHz, X = 2, S t = 4, N = 2;

[0066] For frequency range 2 (FR2), i.e. greater than 6GHz, X = 1 or 2, S t = 4, N = 2

[0067] b) Specifically, each TRS resource is a single-port single-symbol CSI-RS resource, so a CSI-RS resource set containing N CSI-RS resources can be regarded as a TRS burst.

[0068] c) P, SP, AP and other traditional CSI-RS configurations can be supported. Among them, a CSI-RS resource setting (CSI-RS resource setting) can contain K non-zero power CSI-RS resource sets (NZP CSI-RS resource set), and each CSI-RS resource set can be configured as trs-Info through RRC.

[0069] Wherein, one resource is one symbol, so a burst needs 2 or 4 TRS.

[0070] d) In R15-R17, TRS is only used for UE to perform time-frequency tracking, because the CSI reporting based on TRS is not supported, i.e. the reporting amount is 'none'.

[0071] e) In Rel-18, in order to enhance the Doppler frequency offset measurement in high-speed mobile scenarios, NR supports multiple delay path-based time domain correlation reporting based on TRS, mainly to reflect the time-varying nature of different channels caused by Doppler. For example, TDCP (Time Domain correlation parameter) reporting. Among them:

[0072] i. The main purpose of reporting is to feed back the time domain correlation value of two OFDM multipath channels separated by Dy= τ. Among them:

[0073] 1. The amplitude of the time domain correlation value can be completed by the following formula based on the UE implementation algorithm:

[0074] Where,

[0075] Where, A(t, τ) is the amplitude of the time domain correlation value, c(t, τ) is the correlation value of the nth delay path t and the time domain channel response h n (t) and h n (t+τ) at t and t+τ.

[0076] 2. The phase of the time domain correlation value can be completed by the following formula based on the UE implementation algorithm: θ=exp(j2πf d τ)

[0077] Table 1 is the definition of the reporting quantity and the calculation formula of the reporting quantity.

[0078] Table 1 Definition of reporting quantity and calculation formula of reporting quantity

[0079] ii. When the reporting quantity is 'tdcp', the CSI reporting configuration (CSI reportconfig) can have the following configurations:

[0080] 1. The number of delays (Delay) Y: The base station can configure Y∈{1,2,3,4} (Y>1 depends on UE capability reporting) and the specific delay value of Y delay paths, i.e. {D1,…,D Y}. If the base station configures Y, the UE expects to report the amplitude value of the TDCP reporting quantity. Only when Y>1, the UE can report the amplitude and phase value of each delay path.

[0081] 2. The value of Delay D Y : The configurable delay value is D i ∈{4} symbols ∪{1,2,3,4,5,6,10} slots ,i=1,…,Y, where Di = 10 slots is restricted to subcarrier spacing configuration μ ≥ 1, D i = 10 slots are applicable to subcarrier spacing configurations μ ≥ 0, where D i > D basic = 10 slots can be configured subject to UE capability, where D basic = 1 slot. i ∈ {4} symbols ∪ {1, 2, 3, 4, 5, 6, 10} slots , i = 1, …, Y, where the value D i = 10 slots is restricted to subcarrier spacing configuration μ ≥ 1, the values other than D i = 10 slots are applicable to subcarrier spacing configurations μ ≥ 0, and where the values D i > D basic can be configured subject to UE capability, with D basic = 1 slot.

[0082] 3. For the i-th delay, the UE selects D iFor the Rel-18 TRS-based TDCP reporting, for a configured value of Y and a set of configured delay values {D1, …, DY}, for the n-th delay Dn (n = 1, …, Y), the respective TDCP calculation is defined as wideband normalized correlation between two TRS symbols separated by Dn symbols.

[0083] 4. TDCP reporting amplitude quantization: a) codebook table for wideband normalized amplitude value quantization, indicating N = 2 Q where Q = 4, s = 1 / 2; b) Note: This does not exclude reporting of “invalid” autocorrelation values.

[0084] 5. TDCP reporting phase quantization (Y > 1 only): a) Θ(D) supports uniform quantization of 16PSK.

[0085] Release 19 (Rel-19, R19) considers data and / or reference signal transmission in non-ideal scenarios (e.g., non-ideal backhaul, non-ideal synchronization, etc.).

[0086] In some embodiments, the terminal device can report the difference values of the time delay and / or frequency offset between multiple TRPs. Specifically, the time delay and / or frequency offset information can be determined according to the following flow:

[0087] 1) The base station configures N TRS sets for the terminal for the measurement of the time-frequency information of N TRPs;

[0088] 2) The terminal measures the time-frequency information of N TRPs based on the N TRS sets, and calculates and reports the reference TRP_X for time delay and the reference TRP_Y for frequency offset, respectively; wherein, the source reference signal_X or reference source signal_X corresponding to the reference TRP_X and the source reference signal_Y or reference source signal_Y corresponding to the reference TRP_Y can also be reported.

[0089] For example, the TRP with the smallest absolute value of time delay can be selected as the time delay reference TRP_X.

[0090] For example, the TRP with the smallest absolute value of frequency offset can be selected as the frequency offset reference TRP_Y.

[0091] 3) The terminal reports the time delay difference and the frequency offset difference of the remaining N-1 TRPs relative to the time delay reference TRP_X and the frequency offset reference TRP_Y.

[0092] Therefore, the base station receives the time delay reference TRP_X and the frequency offset reference TRP_Y, and the time delay difference and the frequency offset difference of the remaining N-1 TRPs reported by the terminal. In this way, the remaining N-1 TRPs can be pre-compensated for time delay and / or frequency offset information in subsequent data transmission (e.g., PDSCH, etc.). Thus, in subsequent transmission, the time delay information of the N TRPs is equal to the time delay information of the time delay reference TRP_X, and the frequency offset information of the N TRPs is equal to the frequency offset information of the frequency offset reference TRP_Y.

[0093] FIG. 3 is a schematic diagram of transmission of multiple TRPs according to an embodiment of the present application. As shown in FIG. 3, a UE communicates with 3 TRPs. TRP1 transmits TRS1 (also referred to as TRS set 1) to the UE, TRP2 transmits TRS2 (also referred to as TRS set 2) to the UE, and TRP3 transmits TRS3 (also referred to as TRS set 3) to the UE. The UE determines the time delay and / or frequency offset information corresponding to TRP1, TRP2, and TRP3 according to the received TRS1, TRS2, and TRS3, respectively. For example, the average time delay T1 and / or the Doppler frequency F1 corresponding to TRP1 are determined according to TRS1; the average time delay T2 and / or the Doppler frequency F2 corresponding to TRP2 are determined according to TRS2; and the average time delay T3 and / or the Doppler frequency F3 corresponding to TRP3 are determined according to TRS3.

[0094] Taking TRP1 as the time delay and frequency offset reference TRP as an example, as shown in FIG. 3, in subsequent data transmission, the base station pre-compensates the data transmission of TRP2 and TRP3 for time delay and frequency offset, and the average time delay and the Doppler frequency of the PDSCH of TRP2 and TRP3 are equal to the average time delay and the Doppler frequency of the PDSCH of the reference TRP (i.e., TRP1), for example, the average time delay is T1 and the Doppler frequency is F1.

[0095] The current discussion is limited to the measurement of current delay and / or frequency offset information and the subsequent transmission of downlink data. However, for the transmission of downlink data, there is an important factor related to the measurement of CSI. Rel-18 only standardizes the CSI measurement under the assumption of ideal synchronization and ideal backhaul. However, for the assumption of non-ideal synchronization and backhaul in Rel-19, there is no clear solution on how to pre-compensate the CSI-RS for obtaining the above-mentioned CSI measurement information.

[0096] To address at least one of the above problems, embodiments of the present application provide a method, apparatus and communication system for information processing. In the following description, parameters appearing with the same letters as in the foregoing description have the meanings described in the following description, unless otherwise specified.

[0097] Embodiments of the first aspect

[0098] Embodiments of the present application provide a method for information processing, which is described from the perspective of a terminal device. FIG. 4 is a schematic diagram of a method for information processing according to an embodiment of the present application. As shown in FIG. 4, the method comprises:

[0099] 401, the terminal device receives CSI-RS resource configuration information; and

[0100] 402, the terminal device reports CSI based on the CSI-RS resource configuration information.

[0101] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each CSI-RS resource set includes at least one CSI-RS resource used to transmit CSI-RS, and the CSI-RS resource configuration information at least includes first information, the first information is used to indicate the association information between at least one CSI-RS and at least one source reference signal.

[0102] According to the above-mentioned embodiments, the terminal device receives the CSI-RS resource configuration information and reports the CSI based on the CSI-RS resource configuration information. Since the first information in the CSI-RS resource configuration information is used to indicate the association information between at least one CSI-RS and at least one source reference signal, the terminal device can measure the CSI-RS according to the association relationship, thereby improving the reliability and accuracy of the CSI, which helps to improve the reliability and accuracy of data scheduling, improve transmission efficiency, enhance data transmission performance, and increase single-user and network overall throughput.

[0103] For example, based on the assumption of non-ideal synchronization and non-ideal backhaul of Rel-19, after the terminal device reports the delay and / or frequency offset information (for example, delay difference and / or frequency difference, etc.) of different cooperation points TRP, the CSI measurement based on channel measurement should also match the data information compensated by the base station or the channel assumption of data transmission. For example, the current PMI and CQI are both based on the PDSCH measurement assumed by the UE, therefore, the reception of the reference signal (CSI-RS for channel measurement) for measuring the CSI and the measurement should also be based on the PDSCH assumption after delay and / or frequency offset compensation. Therefore, the CSI-RS for obtaining the CSI measurement information should also be transmitted based on the pre-compensated C-JT channel.

[0104] Through the above embodiments of the present application, the terminal device can obtain the association relationship between the CSI-RS and the source reference signal, and further determine the delay and / or frequency offset information of the CSI-RS based on the association relationship. In this way, the CSI generated based on the above-mentioned manner can reliably and accurately reflect the channel state of the corresponding PDSCH, thereby helping to improve the reliability and accuracy of data scheduling.

[0105] In some embodiments, after receiving the delay and / or frequency offset information reported by the terminal device based on the source reference signal measurement, the network device can compensate the CSI-RS based on the delay and / or frequency offset information. That is, the delay and / or frequency offset of the CSI-RS resource is compensated by the network device.

[0106] In some embodiments, the source reference signal can include at least one of the following: TRS for time-frequency tracking, CSI-RS for channel measurement, CSI-RS for beam management, SSB.

[0107] In some embodiments, the CSI-RS resource is a CSI-RS resource for channel measurement, and the CSI at least includes a CSI generated based on the CSI-RS resource.

[0108] In the following embodiments, the CSI includes at least one of the following: PMI (Precoding Matrix Indicator), RI (rank indication), LI (layer indication), CQI (Channel Quality Indicator).

[0109] In some embodiments, the at least one CSI-RS includes a first CSI-RS and a second CSI-RS, and the at least one source reference signal includes a first source reference signal and a second source reference signal.

[0110] wherein the first and second CSI-RSs can be from different TRPs; the first and second source reference signals can also be from different TRPs.

[0111] In the following, the first information of the present application is exemplarily described by taking the first and second CSI-RSs, and the first and second source reference signals as examples.

[0112] In some embodiments, the association information comprises quasi co-location information of the CSI-RSs and the source reference signals (e.g., which can be indicated by the second and third information described later).

[0113] In some embodiments, the first information can comprise second information. The second information is used to configure or indicate or activate at least one first TCI state (Transmission Configuration Indication state). The first TCI state is used to indicate first quasi co-location parameters. Wherein, for at least one of the first quasi co-location parameters, the first CSI-RS is quasi co-located with the first source reference signal, and the second CSI-RS is quasi co-located with the second source reference signal.

[0114] For example, the first quasi co-location parameters can comprise at least one of: average delay, delay spread, Doppler shift and Doppler spread.

[0115] Taking the first quasi co-location parameters comprising delay spread, Doppler shift and Doppler spread as an example, the delay spread, Doppler shift and Doppler spread of the first CSI-RS can be assumed to be QCL with the first source reference signal, for example, the delay spread, Doppler shift and Doppler spread corresponding to the first source reference signal are taken as the delay spread, Doppler shift and Doppler spread of the first CSI-RS; similarly, the delay spread, Doppler shift and Doppler spread of the second CSI-RS can be assumed to be QCL with the second source reference signal.

[0116] In some embodiments, the first information can further comprise third information. The third information is used to configure or indicate or activate a second TCI state. The second TCI state is used to indicate second quasi co-location parameters. Wherein, for at least one of the second quasi co-location parameters, the first and second CSI-RSs are quasi co-located with the first source reference signal.

[0117] Taking the second quasi co-location parameters comprising average delay as an example, the average delay of the first CSI-RS can be assumed to be QCL with the first source reference signal, and the average delay of the second CSI-RS can also be assumed to be QCL with the first source reference signal.

[0118] The first and second quasi co-location parameters are exemplarily described below.

[0119] In some embodiments, the first quasi co-location parameters comprise: delay spread, Doppler shift and Doppler spread. In this case, the second quasi co-location parameters can comprise: average delay.

[0120] The UE assumes, when receiving the first and second CSI-RS, that the delay spread, Doppler shift and Doppler spread of the first CSI-RS are QCLed with the first source reference signal, that the delay spread, Doppler shift and Doppler spread of the second CSI-RS are QCLed with the second source reference signal, and that the average delay of the first and second CSI-RS are QCLed with the first source reference signal.

[0121] In some embodiments, the first quasi co-location parameters comprise: delay spread, Doppler shift and Doppler spread. In this case, the second quasi co-location parameters can comprise: average delay, delay spread, Doppler shift and Doppler spread.

[0122] The UE assumes, when receiving the first and second CSI-RS, that the delay spread, Doppler shift and Doppler spread of the first CSI-RS are QCLed with the first source reference signal, that the delay spread, Doppler shift and Doppler spread of the second CSI-RS are QCLed with the second source reference signal, and that the average delay of the first and second CSI-RS are QCLed with the first source reference signal. The UE ignores the delay spread, Doppler shift and Doppler spread in the second quasi co-location parameters.

[0123] In some embodiments, the first quasi co-location parameters comprise: average delay, delay spread and Doppler spread. In this case, the second quasi co-location parameters comprise: Doppler shift.

[0124] The UE assumes, when receiving the first and second CSI-RS, that the average delay, delay spread and Doppler spread of the first CSI-RS are QCLed with the first source reference signal, that the average delay, delay spread and Doppler spread of the second CSI-RS are QCLed with the second source reference signal, and that the Doppler shift of the first and second CSI-RS are QCLed with the first source reference signal.

[0125] In some embodiments, the first quasi co-location parameters comprise: average delay, delay spread and Doppler spread. In this case, the second quasi co-location parameters comprise: average delay, delay spread, Doppler shift and Doppler spread.

[0126] The UE, when receiving the first CSI-RS and the second CSI-RS, assumes that the delay spread and the Doppler spread of the first CSI-RS are QCLed with the first source reference signal, and assumes that the delay spread and the Doppler spread of the second CSI-RS are QCLed with the second source reference signal; the UE ignores the delay spread and the Doppler spread in the second quasi co-location parameter, and assumes that the average delay and the Doppler shift of the first CSI-RS and the second CSI-RS are QCLed with the first source reference signal.

[0127] In some embodiments, the first quasi co-location parameter includes: delay spread and Doppler spread. In this case, the second quasi co-location parameter includes: average delay, delay spread, Doppler shift and Doppler spread.

[0128] The UE, when receiving the first CSI-RS and the second CSI-RS, assumes that the delay spread and the Doppler spread of the first CSI-RS are QCLed with the first source reference signal, and assumes that the delay spread and the Doppler spread of the second CSI-RS are QCLed with the second source reference signal; the UE ignores the delay spread and the Doppler spread in the second quasi co-location parameter, and assumes that the average delay and the Doppler shift of the first CSI-RS and the second CSI-RS are QCLed with the first source reference signal.

[0129] In some embodiments, the first quasi co-location parameter includes: delay spread and Doppler spread. In this case, the second quasi co-location parameter includes: average delay, delay spread, Doppler shift and Doppler spread.

[0130] The UE, when receiving the first CSI-RS and the second CSI-RS, assumes that the delay spread and the Doppler spread of the first CSI-RS are QCLed with the first source reference signal, and assumes that the delay spread and the Doppler spread of the second CSI-RS are QCLed with the second source reference signal; the UE ignores the delay spread and the Doppler spread in the second quasi co-location parameter, and assumes that the average delay and the Doppler shift of the first CSI-RS and the second CSI-RS are QCLed with the first source reference signal.

[0131] In some embodiments, the association information includes quasi co-location information of the CSI-RS and the source reference signal (which can be indicated by the second information and / or the sixth information), and correspondence information of the CSI-RS and the source reference signal (which can be indicated by the fourth information and / or the fifth information described later).

[0132] In some embodiments, in the case where the second information indicates the first quasi co-location parameter, the second quasi co-location parameter can also not be indicated by the third information. For example, the fourth information for indicating the first source reference signal can be included in the first information. The first source reference signal is, for example, from the aforementioned reference TRP.

[0133] The first quasi co-location parameter and the fourth information are exemplarily described as follows.

[0134] In some embodiments, the first quasi co-location parameter comprises: delay spread, Doppler shift and Doppler spread. The fourth information indicates the first source reference signal.

[0135] When receiving the first CSI-RS and the second CSI-RS, the UE assumes that the delay spread, the Doppler shift and the Doppler spread of the first CSI-RS are QCLed with the first source reference signal, and that the delay spread, the Doppler shift and the Doppler spread of the second CSI-RS are QCLed with the second source reference signal; for the average delay not included in the first quasi co-location parameter, the average delay of the first CSI-RS and the second CSI-RS are QCLed with the first source reference signal.

[0136] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread and Doppler spread. The fourth information indicates the first source reference signal.

[0137] When receiving the first CSI-RS and the second CSI-RS, the UE assumes that the average delay, the delay spread and the Doppler spread of the first CSI-RS are QCLed with the first source reference signal, and that the average delay, the delay spread and the Doppler spread of the second CSI-RS are QCLed with the second source reference signal; for the Doppler shift not included in the first quasi co-location parameter, the Doppler shift of the first CSI-RS and the second CSI-RS are QCLed with the first source reference signal.

[0138] In some embodiments, the first quasi co-location parameter comprises: delay spread and Doppler spread. The fourth information indicates the first source reference signal.

[0139] When receiving the first CSI-RS and the second CSI-RS, the UE assumes that the delay spread and the Doppler spread of the first CSI-RS are QCLed with the first source reference signal, and that the delay spread and the Doppler spread of the second CSI-RS are QCLed with the second source reference signal; for the average delay and the Doppler shift not included in the first quasi co-location parameter, the average delay and the Doppler shift of the first CSI-RS and the second CSI-RS are QCLed with the first source reference signal.

[0140] In some embodiments, the first quasi co-location parameter can comprise: average delay, delay spread, Doppler shift and Doppler spread.

[0141] The first quasi co-location parameter can comprise: average delay, delay spread, Doppler shift and Doppler spread is exemplarily described as follows.

[0142] In some embodiments, the first information can comprise the second information and the third information. As mentioned previously, the second information is used to indicate the first quasi co-location parameter; the third information is used to indicate the second quasi co-location parameter.

[0143] In the case that the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread, the second quasi co-location parameter comprises: average delay.

[0144] When the UE receives the first CSI-RS and the second CSI-RS, for the parameters in the first quasi co-location parameter other than the second quasi co-location parameter, i.e., delay spread, Doppler shift and Doppler spread, the delay spread, Doppler shift and Doppler spread of the first CSI-RS are assumed to be QCLed with the first source reference signal, and the delay spread, Doppler shift and Doppler spread of the second CSI-RS are assumed to be QCLed with the second source reference signal; the average delay of the first CSI-RS and the second CSI-RS are assumed to be QCLed with the first source reference signal.

[0145] In the case that the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread, the second quasi co-location parameter comprises: Doppler shift.

[0146] When the UE receives the first CSI-RS and the second CSI-RS, for the parameters in the first quasi co-location parameter other than the second quasi co-location parameter, i.e., average delay, delay spread and Doppler spread, the average delay, delay spread and Doppler spread of the first CSI-RS are assumed to be QCLed with the first source reference signal, and the average delay, delay spread and Doppler spread of the second CSI-RS are assumed to be QCLed with the second source reference signal; the Doppler shift of the first CSI-RS and the second CSI-RS are assumed to be QCLed with the first source reference signal.

[0147] In the case that the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread, the second quasi co-location parameter comprises: average delay and Doppler shift.

[0148] When the UE receives the first CSI-RS and the second CSI-RS, for the parameters in the first quasi co-location parameter other than the second quasi co-location parameter, i.e., delay spread and Doppler spread, the delay spread and Doppler spread of the first CSI-RS are assumed to be QCLed with the first source reference signal, and the delay spread and Doppler spread of the second CSI-RS are assumed to be QCLed with the second source reference signal; the average delay and Doppler shift of the first CSI-RS and the second CSI-RS are assumed to be QCLed with the first source reference signal.

[0149] In some embodiments, the first information can include the second information, the fifth information and the sixth information. As mentioned above, the second information is used to indicate the first quasi co-location parameter. Wherein, the fifth information is similar to the fourth information, and is used to indicate the first source reference signal, and the sixth information is used to indicate the third quasi co-location parameter.

[0150] Wherein, in terms of the third quasi co-location parameter, the first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal. That is, the third quasi co-location parameter of the first CSI-RS and the third quasi co-location parameter of the second CSI-RS can both be assumed to be QCLed with the first source reference signal.

[0151] In some embodiments, in the case that the first quasi co-location parameter includes: average delay, delay spread, Doppler frequency offset and Doppler spread, the third quasi co-location parameter includes: average delay and / or Doppler frequency offset.

[0152] In some embodiments, the fourth information and / or the fifth information and / or the sixth information is indicated by at least one of a radio resource control (RRC) message, a medium access control control element (MAC CE) and a downlink control information (DCI).

[0153] In some embodiments, the fourth information and / or the fifth information can indicate the first source reference signal in various ways. For example, the fourth information and / or the fifth information can indicate the identity of the first source reference signal, or can also indicate the identity of the reference TRP. In the embodiments of the present application, the source reference signal can also be referred to as a reference source signal or the like.

[0154] In some embodiments, the method further includes: the terminal device further receives CSI reporting configuration information.

[0155] Wherein, the CSI reporting configuration information is related to the CSI-RS resource configuration information, and the CSI is reported based on the CSI reporting configuration information.

[0156] In some embodiments, the CSI reporting configuration information at least includes reporting quantity information of PMI (precoding matrix indication).

[0157] In some embodiments, the CSI reporting configuration information at least includes association configuration information related to the CSI-RS resource configuration information.

[0158] In some embodiments, the association configuration information, for example, is a CSI-RS resource set in the CSI-RS resource configuration information associated with the CSI reporting configuration information included in the high layer signaling of the CSI reporting configuration information.

[0159] In the following, the information processing method of the present application is exemplarily described in combination with specific embodiments.

[0160] Taking the TRS as an example, when the UE reports the time delay and / or frequency offset information based on the TRS measurement, the base station pre-compensates the time delay and / or frequency offset of the CSI-RS. The base station informs the UE of the association information (for example, including the quasi co-location information and / or corresponding information of the CSI-RS and the TRS) between each CSI-RS and the TRS through the first information, so that the terminal device can receive the corresponding CSI-RS according to the time delay and / or frequency offset information based on the TRS measurement, and obtain the CSI by measuring the CSI-RS.

[0161] In some embodiments, the first information can include second information and third information, the second information can indicate the respective first TCI state of each CSI-RS, and the third information can indicate the common second TCI state of the plurality of CSI-RSs.

[0162] In some embodiments, the first information can include second information and fourth information, the second information can indicate the respective first TCI state of each CSI-RS, and the fourth information can indicate the source reference signal identifier or the reference TRP identifier corresponding to the reference TRP.

[0163] In some embodiments, the first information can include second information, fifth information and sixth information, the second information can indicate the respective first TCI state of each CSI-RS, the fifth information can indicate the source reference signal identifier or the reference TRP identifier corresponding to the reference TRP, and the sixth information can indicate the parameter of the source reference signal quasi co-location of the plurality of CSI-RSs and the reference TRP.

[0164] Specifically:

[0165] Step 1: The terminal device receives CSI reporting configuration information, which can be CSI reporting setting, wherein the reporting quantity in the CSI reporting setting includes PMI information. The CSI reporting setting is also associated with CSI-RS resource configuration information, which at least includes one CSI-RS resource set, and each resource set includes M=3 CSI-RS resources for channel measurement.

[0166] FIG. 5 is another schematic diagram of the transmission of multiple TRPs according to an embodiment of the present application. As shown in FIG. 5, in the multi-TRP joint transmission, M resources are transmitted by M TRPs, for example, TRP 1 transmits CSI-RS1, TRP 2 transmits CSI-RS2, and TRP 1 transmits CSI-RS3.

[0167] Step 2: The terminal device can perform calculation of time delay and / or frequency offset information of each TRP in advance by sending other RS (e.g., TRS resource / TRS resource set), and report to the base station, so that the subsequent downlink transmission can eliminate the difference in time delay and / or frequency offset between different TRPs.

[0168] For example, as shown in FIG. 3, based on three TRS set measurements, TRP1 can be taken as the reference TRP (also referred to as the source reference signal TRP or the reference source signal TRP), and subsequent PDSCH and CSI-RS can be pre-compensated according to TRP1, so as to achieve the effect that the terminal side receives downlink transmission signals of different TRPs with consistent / synchronized time delay and / or frequency offset information.

[0169] Step 3: The CSI-RS resource configuration information includes first information for indicating the association information between CSI-RS and TRS.

[0170] For CSI-RS, when receiving three CSI-RS signals transmitted by three TRPs at the terminal side, the average time delay and / or Doppler frequency offset can have been pre-compensated according to TRP1, that is, the average time delay and / or Doppler frequency offset is equal to the time delay and / or Doppler information generated by the downlink channel of TRP1 to UE.

[0171] Therefore, there can be the following multiple indication modes and CSI-RS receiving modes.

[0172] Mode 1: Each CSI-RS can be subjected to QCL assumption (time delay extension, Doppler frequency offset, Doppler extension) through an independent TCI state, and all CSI-RSs can be subjected to QCL assumption (average time delay) based on the following information.

[0173] Specifically, the information is configured in each CSI-RS resource configuration information.

[0174] For example, the information can be all QCL parameters of the reference TRP / source reference signal / reference source signal, average time delay, time delay extension, Doppler frequency offset, and Doppler extension.

[0175] For another example, the information can be the average time delay parameter in the TCI state of the reference TRP / source reference signal / reference source signal.

[0176] For example, the information can indicate TCI state 0 (i.e., the second TCI state) and the independent TCI states can include TCI state 1, TCI state 2, TCI state 3 (i.e., the first TCI state). Among them, TCI state 0 is used to indicate the common quasi co-location parameters of CSI-RS1, CSI-RS2, and CSI-RS3, and TCI state 1, TCI state 2, and TCI state 3 respectively indicate the respective quasi co-location parameters of CSI-RS1, CSI-RS2, and CSI-RS3. TCI state 1, TCI state 2, and TCI state 3 can also respectively indicate the respective source reference signals of CSI-RS1, CSI-RS2, and CSI-RS3, that is, TRS1, TRS2, and TRS3.

[0177] For example, the information can be only the identification of the reference TRP / source reference signal / reference source signal. For example, TRP1 is indicated as the reference TRP / the source reference signal of TRP1 / the reference source signal of TRP1 by log(M) or M bitmap.

[0178] When the terminal side receives all the CSI-RSs, the delay spread, the Doppler frequency offset, and the Doppler spread can be assumed according to the source reference signal in each independent TCI state. The average delay can be assumed according to the reference TRP / source reference signal / reference source signal.

[0179] Method 2: Each CSI-RS can be assumed by an independent TCI state (average delay, delay spread, and Doppler spread), and all CSI-RSs can be assumed based on the following information (Doppler frequency offset).

[0180] Specifically, the information is configured in each CSI-RS resource set configuration information:

[0181] For example, the information can be all the QCL parameters of the reference TRP / source reference signal / reference source signal, the average delay, the delay spread, the Doppler frequency offset, and the Doppler spread.

[0182] For example, the information can be the Doppler frequency offset parameter in the TCI state of the reference TRP / source reference signal / reference source signal.

[0183] For example, the information can be only the identification of the reference TRP / source reference signal / reference source signal. For example, TRP1 is indicated as the reference TRP / the source reference signal of TRP1 / the reference source signal of TRP1 by log(M) or M bitmap.

[0184] The terminal side, when receiving all CSI-RSs, the average delay, delay spread, Doppler spread can be assumed QCL with the source reference signal in each independent TCI state. The Doppler frequency offset can be assumed QCL with the reference TRP / source reference signal / reference source signal.

[0185] Method 3: Each CSI-RS can be assumed (delay spread, Doppler spread) by an independent TCI state, and all CSI-RSs can be assumed based on the following information.

[0186] Specifically, the information is configured in each CSI-RS resource set configuration information:

[0187] For example, the information can be all QCL parameters of the reference TRP / source reference signal / reference source signal, average delay, delay spread, Doppler frequency offset, and Doppler spread.

[0188] For another example, the information can be the (average delay, Doppler frequency offset) parameters in the TCI state of the reference TRP / source reference signal / reference source signal.

[0189] For another example, the information can only be the identity of the reference TRP / source reference signal / reference source signal. For example, TRP1 is indicated as the reference TRP / TRP1 source reference signal / TRP1 reference source signal by log(M) or M bitmap.

[0190] The terminal side, when receiving all CSI-RSs, the delay spread and Doppler spread can be assumed QCL with the source reference signal in each independent TCI state. The average delay and Doppler frequency offset can be assumed QCL with the reference TRP / source reference signal / reference source signal.

[0191] Method 4: Each CSI-RS can be assumed (average delay, delay spread, Doppler frequency offset, Doppler spread) by an independent TCI state, and all CSI-RSs can be assumed based on the following information.

[0192] Method 4-1: The information can be the average delay parameter in the TCI state of the reference TRP / source reference signal / reference source signal.

[0193] The terminal side, when receiving all CSI-RSs, can ignore the average delay parameter in each independent TCI. The average delay can be assumed QCL with the reference TRP / source reference signal / reference source signal.

[0194] Method 4-2: The information can be the Doppler frequency offset parameter in the TCI state of the reference TRP / source reference signal / reference source signal.

[0195] The terminal side can ignore the Doppler frequency offset parameter in each independent TCI when receiving all CSI-RS. The Doppler frequency offset parameter can be assumed to be QCLed with the reference TRP / source reference signal / reference source signal.

[0196] Method 4-3: The information can be the average delay and Doppler frequency offset parameters in the TCI state of the reference TRP / source reference signal / reference source signal.

[0197] The terminal side can ignore the (average delay, Doppler frequency offset) parameters in each independent TCI when receiving all CSI-RS. The average delay and Doppler frequency offset can be assumed to be QCLed with the reference TRP / source reference signal / reference source signal.

[0198] Method 4-4: The information can be the identification information of the reference TRP / source reference signal / reference source signal. In addition, the terminal also receives reference QCL parameter information for indicating the third quasi co-location parameter.

[0199] For example, the reference QCL parameter information is used to indicate the average delay parameter.

[0200] The terminal side can ignore the average delay parameter in each independent TCI when receiving all CSI-RS. The average delay can be assumed to be QCLed with the reference TRP / source reference signal / reference source signal.

[0201] For another example, the reference QCL parameter information is used to indicate the Doppler frequency offset parameter.

[0202] The terminal side can ignore the Doppler frequency offset parameter in each independent TCI when receiving all CSI-RS. The Doppler frequency offset parameter can be assumed to be QCLed with the reference TRP / source reference signal / reference source signal.

[0203] For another example, the reference QCL parameter information is used to indicate the average delay and Doppler frequency offset parameters. The terminal side can ignore the average delay and Doppler frequency offset parameters in each independent TCI when receiving all CSI-RS. The average delay and Doppler frequency offset parameters can be assumed to be QCLed with the reference TRP / source reference signal / reference source signal.

[0204] It is worth noting that the above figures only schematically illustrate the embodiments of the present application, but the present application is not limited thereto. For example, the execution order between the various operations can be appropriately adjusted, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and the present application is not limited to the above figures.

[0205] The above embodiments are only exemplary for the embodiments of the present application, but the present application is not limited thereto, and can be appropriately modified on the basis of the above embodiments. For example, the above embodiments can be used alone or one or more of the above embodiments can be combined.

[0206] According to the above embodiments, the terminal device receives the CSI-RS resource configuration information and reports the CSI based on the CSI-RS resource configuration information. Since the first information in the CSI-RS resource configuration information is used to indicate the association information of at least one CSI-RS and at least one source reference signal, the terminal device can measure the CSI-RS according to the association relationship, thereby improving the reliability and accuracy of the CSI, helping to improve the reliability and accuracy of data scheduling, improving the transmission efficiency, enhancing the data transmission performance, increasing the single user and network overall throughput.

[0207] Embodiments of the second aspect

[0208] The embodiments of the present application provide an information processing device. The device can be a terminal device, or one or more components or assemblies configured in the terminal device. The same content as the embodiments of the first aspect will not be described again.

[0209] FIG. 6 is a schematic diagram of an information processing device according to an embodiment of the present application. As shown in FIG. 6, the information processing device 600 includes a receiving unit 601 and a processing unit 602.

[0210] The receiving unit 601 receives CSI-RS (channel state information reference signal) resource configuration information.

[0211] The sending unit 602 reports the CSI (channel state information) based on the CSI-RS resource configuration information.

[0212] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and each CSI-RS resource set includes at least one CSI-RS resource used to transmit the CSI-RS.

[0213] The CSI-RS resource configuration information includes at least first information, and the first information is used to indicate the association information of at least one CSI-RS and at least one source reference signal.

[0214] In some embodiments, the receiving unit 601 further receives CSI reporting configuration information, the CSI reporting configuration information is related to the CSI-RS resource configuration information, and the CSI is further reported based on the CSI reporting configuration information.

[0215] In some embodiments, the CSI reporting configuration information comprises at least reporting quantity information of a PMI (Precoding Matrix Indicator).

[0216] In some embodiments, the CSI reporting configuration information comprises at least association configuration information with the CSI-RS resource configuration information.

[0217] In some embodiments, the CSI-RS resource is a CSI-RS resource for channel measurement, and the CSI comprises at least CSI calculated and generated based on the CSI-RS resource.

[0218] In some embodiments, the at least one CSI-RS comprises a first CSI-RS and a second CSI-RS, and the at least one source reference signal comprises a first source reference signal and a second source reference signal.

[0219] In some embodiments, the first information comprises second information, and the second information is used for configuring or indicating or activating at least one first TCI state (Transmission Configuration Indication state), the first TCI state being used for indicating first quasi co-location parameters, in terms of at least one of the first quasi co-location parameters, the first CSI-RS is quasi co-located with the first source reference signal, and the second CSI-RS is quasi co-located with the second source reference signal.

[0220] In some embodiments, the first information further comprises third information, and the third information is used for configuring or indicating or activating a second TCI state, the second TCI state being used for indicating second quasi co-location parameters, in terms of at least one of the second quasi co-location parameters, the first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal.

[0221] In some embodiments, the first quasi co-location parameters comprise: delay spread, Doppler frequency offset and Doppler spread, the second quasi co-location parameters comprise: average delay, delay spread, Doppler frequency offset and Doppler spread, or average delay.

[0222] In some embodiments, the first quasi co-location parameters comprise: average delay, delay spread and Doppler spread, the second quasi co-location parameters comprise: average delay, delay spread, Doppler frequency offset and Doppler spread, or Doppler frequency offset.

[0223] In some embodiments, the first quasi co-location parameters comprise: delay spread and Doppler spread, the second quasi co-location parameters comprise: average delay, delay spread, Doppler frequency offset and Doppler spread, or average delay and Doppler frequency offset.

[0224] In some embodiments, the first quasi co-location parameter comprises: delay spread, Doppler shift and Doppler spread, or comprises: average delay, delay spread and Doppler spread, or comprises: delay spread and Doppler spread; the first information further comprises fourth information, the fourth information being used for indicating the first source reference signal.

[0225] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread, and the second quasi co-location parameter comprises: average delay.

[0226] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread, and the second quasi co-location parameter comprises: Doppler shift.

[0227] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread, and the second quasi co-location parameter comprises: average delay and Doppler shift.

[0228] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread; the first information further comprises fifth information and sixth information, the fifth information being used for indicating the first source reference signal, and the sixth information being used for indicating a third quasi co-location parameter.

[0229] In some embodiments, the first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal in terms of the third quasi co-location parameter, and the third quasi co-location parameter comprises: average delay and / or Doppler shift.

[0230] In some embodiments, the delay and / or frequency shift of the CSI-RS resource is compensated by a network device.

[0231] The above embodiments are only exemplarily described, but the present application is not limited thereto, and can be appropriately modified on the basis of the above embodiments. For example, the above embodiments can be used alone or in combination of one or more of the above embodiments.

[0232] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The information processing apparatus can further comprise other components or modules, and the specific content of these components or modules can be referred to the related art.

[0233] In addition, for the sake of simplicity, only the connection relationship or signal direction between each component or module is exemplarily shown in the drawings, but it should be clear to those skilled in the art that various related technologies such as bus connection can be adopted. The above-mentioned various components or modules can be realized by hardware facilities such as processors, memories, transmitters, receivers, etc.; the present application does not limit this.

[0234] According to the above-mentioned embodiments, the terminal device receives the CSI-RS resource configuration information and reports the CSI based on the CSI-RS resource configuration information. Since the first information in the CSI-RS resource configuration information is used to indicate the association information of at least one CSI-RS and at least one source reference signal, the terminal device can measure the CSI-RS according to the association relationship, thereby improving the reliability and accuracy of the CSI, helping to improve the reliability and accuracy of data scheduling, improving the transmission efficiency, enhancing the data transmission performance, increasing the single user and network overall throughput.

[0235] Embodiments of the third aspect

[0236] The embodiments of the present application provide an information processing method, which is described from the network device side. The same content as the embodiments of the first aspect will not be described again.

[0237] FIG. 7 is a schematic diagram of an information processing method according to an embodiment of the present application. As shown in FIG. 7, the method comprises:

[0238] 701. The network device sends CSI-RS (channel state information reference signal) resource configuration information; and

[0239] 702. The network device receives the CSI reported based on the CSI-RS resource configuration information.

[0240] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and each CSI-RS resource set includes at least one CSI-RS resource used for transmitting the CSI-RS.

[0241] The CSI-RS resource configuration information at least includes first information, and the first information is used to indicate the association information of at least one CSI-RS and at least one source reference signal.

[0242] In some embodiments, the method further comprises: the network device further sends CSI reporting configuration information, the CSI reporting configuration information is related to the CSI-RS resource configuration information, and the CSI is further reported based on the CSI reporting configuration information.

[0243] In some embodiments, the CSI reporting configuration information at least includes PMI (precoding matrix indication) reporting quantity information.

[0244] In some embodiments, the CSI reporting configuration information comprises at least association configuration information associated with the CSI-RS resource configuration information.

[0245] In some embodiments, the CSI-RS resource is a CSI-RS resource for channel measurement, and the CSI comprises at least CSI calculated and generated based on the CSI-RS resource.

[0246] In some embodiments, the at least one CSI-RS comprises a first CSI-RS and a second CSI-RS, and the at least one source reference signal comprises a first source reference signal and a second source reference signal.

[0247] In some embodiments, the first information comprises second information, and the second information is used for configuring or indicating or activating at least one first TCI state (Transmission Configuration Indication state), the first TCI state being used for indicating first quasi co-location parameters, in terms of at least one of the first quasi co-location parameters, the first CSI-RS is quasi co-located with the first source reference signal, and the second CSI-RS is quasi co-located with the second source reference signal.

[0248] In some embodiments, the first information further comprises third information, and the third information is used for configuring or indicating or activating a second TCI state, the second TCI state being used for indicating second quasi co-location parameters, in terms of at least one of the second quasi co-location parameters, the first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal.

[0249] In some embodiments, the first quasi co-location parameters comprise: delay spread, Doppler frequency offset and Doppler spread, the second quasi co-location parameters comprise: average delay, delay spread, Doppler frequency offset and Doppler spread, or average delay.

[0250] In some embodiments, the first quasi co-location parameters comprise: average delay, delay spread and Doppler spread, the second quasi co-location parameters comprise: average delay, delay spread, Doppler frequency offset and Doppler spread, or Doppler frequency offset.

[0251] In some embodiments, the first quasi co-location parameters comprise: delay spread and Doppler spread, the second quasi co-location parameters comprise: average delay, delay spread, Doppler frequency offset and Doppler spread, or average delay and Doppler frequency offset.

[0252] In some embodiments, the first quasi co-location parameter comprises: delay spread, Doppler shift and Doppler spread, or comprises: average delay, delay spread and Doppler spread, or comprises: delay spread and Doppler spread; the first information further comprises fourth information, the fourth information being used to indicate the first source reference signal.

[0253] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread, and the second quasi co-location parameter comprises: average delay.

[0254] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread, and the second quasi co-location parameter comprises: Doppler shift.

[0255] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread, and the second quasi co-location parameter comprises: average delay and Doppler shift.

[0256] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler shift and Doppler spread; the first information further comprises fifth information and sixth information, the fifth information being used to indicate the first source reference signal, and the sixth information being used to indicate a third quasi co-location parameter.

[0257] In some embodiments, the first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal in terms of the third quasi co-location parameter, and the third quasi co-location parameter comprises: average delay and / or Doppler shift.

[0258] In some embodiments, the delay and / or frequency shift of the CSI-RS resource is compensated by a network device.

[0259] It is worth noting that the above figures only schematically illustrate the embodiments of the present application, but the present application is not limited thereto. For example, the execution order between the operations can be properly adjusted, and in addition, some operations can be added or some operations can be removed. Those skilled in the art can properly modify the above content, and the present application is not limited to the above figures.

[0260] The above embodiments only exemplarily illustrate the embodiments of the present application, but the present application is not limited thereto, and proper modifications can be made on the basis of the above embodiments. For example, the above embodiments can be used individually, or one or more of the above embodiments can be combined.

[0261] According to the above embodiment, the terminal device receives the CSI-RS resource configuration information, and reports the CSI based on the CSI-RS resource configuration information. Since the first information in the CSI-RS resource configuration information is used to indicate the association information of at least one CSI-RS and at least one source reference signal, the terminal device can measure the CSI-RS according to the association relationship, thereby improving the reliability and accuracy of the CSI, helping to improve the reliability and accuracy of data scheduling, improving transmission efficiency, enhancing data transmission performance, increasing single-user and network overall throughput.

[0262] Embodiments of the fourth aspect

[0263] Embodiments of the present application provide an information processing device. The device may, for example, be a network device, or one or more components or components configured in the network device. The same content as the embodiments of the third aspect will not be described again.

[0264] FIG. 8 is a schematic diagram of an information processing device according to an embodiment of the present application. As shown in FIG. 8, the information processing device 800 includes a sending unit 801 and a receiving unit 802.

[0265] The sending unit 801 sends CSI-RS (channel state information reference signal) resource configuration information; wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets includes at least one CSI-RS resource for transmitting the CSI-RS, and the CSI-RS resource configuration information includes at least first information, the first information is used to indicate the association information of at least one CSI-RS and at least one source reference signal.

[0266] The receiving unit 802 receives the CSI reported based on the CSI-RS resource configuration information.

[0267] In some embodiments, the sending unit 801 further sends CSI reporting configuration information, the CSI reporting configuration information is related to the CSI-RS resource configuration information, and the CSI is further reported based on the CSI reporting configuration information.

[0268] In some embodiments, the CSI reporting configuration information includes at least the reporting quantity information of the PMI (precoding matrix indication).

[0269] In some embodiments, the CSI reporting configuration information includes at least the association configuration information of the CSI-RS resource configuration information.

[0270] In some embodiments, the CSI-RS resource is a CSI-RS resource for channel measurement, and the CSI includes at least CSI calculated based on the CSI-RS resource.

[0271] In some embodiments, the at least one CSI-RS includes a first CSI-RS and a second CSI-RS, and the at least one source reference signal includes a first source reference signal and a second source reference signal.

[0272] In some embodiments, the first information includes second information, and the second information is used for configuring or indicating or activating at least one first TCI state (Transmission Configuration Indication state) used for indicating first quasi co-location parameters, in terms of at least one of the first quasi co-location parameters, the first CSI-RS is quasi co-located with the first source reference signal, and the second CSI-RS is quasi co-located with the second source reference signal.

[0273] In some embodiments, the first information further includes third information, and the third information is used for configuring or indicating or activating a second TCI state used for indicating second quasi co-location parameters, in terms of at least one of the second quasi co-location parameters, the first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal.

[0274] In some embodiments, the first quasi co-location parameters include: delay spread, Doppler frequency offset and Doppler spread, the second quasi co-location parameters include: average delay, delay spread, Doppler frequency offset and Doppler spread, or average delay.

[0275] In some embodiments, the first quasi co-location parameters include: average delay, delay spread and Doppler spread, the second quasi co-location parameters include: average delay, delay spread, Doppler frequency offset and Doppler spread, or Doppler frequency offset.

[0276] In some embodiments, the first quasi co-location parameters include: delay spread and Doppler spread, and the second quasi co-location parameters include: average delay, delay spread, Doppler frequency offset and Doppler spread, or average delay and Doppler frequency offset.

[0277] In some embodiments, the first quasi co-location parameters include: delay spread, Doppler frequency offset and Doppler spread, or include average delay, delay spread and Doppler spread, or include delay spread and Doppler spread; and the first information further includes fourth information used for indicating the first source reference signal.

[0278] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler frequency shift and Doppler spread, and the second quasi co-location parameter comprises: average delay.

[0279] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler frequency shift and Doppler spread, and the second quasi co-location parameter comprises: Doppler frequency shift.

[0280] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler frequency shift and Doppler spread, and the second quasi co-location parameter comprises: average delay and Doppler frequency shift.

[0281] In some embodiments, the first quasi co-location parameter comprises: average delay, delay spread, Doppler frequency shift and Doppler spread; the first information further comprises fifth information and sixth information, the fifth information is used to indicate the first source reference signal, and the sixth information is used to indicate a third quasi co-location parameter.

[0282] In some embodiments, the first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal in terms of the third quasi co-location parameter, and the third quasi co-location parameter comprises: average delay and / or Doppler frequency shift.

[0283] In some embodiments, the delay and / or frequency shift of the CSI-RS resource is compensated by a network device.

[0284] The above embodiments are only exemplary, but the present application is not limited thereto, and can be appropriately modified on the basis of the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0285] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The information processing apparatus can also include other components or modules, and the specific content of these components or modules can be referred to related technologies.

[0286] In addition, for the sake of simplicity, only the connection relationship or signal path between the components or modules is exemplarily shown in the drawings, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above components or modules can be realized by hardware facilities such as processors, memories, transmitters, receivers, etc.; the present application is not limited thereto.

[0287] According to the above embodiments, the terminal device receives the CSI-RS resource configuration information, and reports the CSI based on the CSI-RS resource configuration information. Since the first information in the CSI-RS resource configuration information is used to indicate the association information of at least one CSI-RS and at least one source reference signal, the terminal device can measure the CSI-RS according to the association relationship, thereby improving the reliability and accuracy of the CSI, helping to improve the reliability and accuracy of data scheduling, improving transmission efficiency, enhancing data transmission performance, increasing single-user and overall network throughput.

[0288] Embodiments of the fifth aspect

[0289] The embodiments of the present application also provide a communication system, which can refer to FIG. 1, and the same content as the embodiments of the first aspect to the fourth aspect will not be repeated.

[0290] In some embodiments, the communication system 100 can at least include a network device and a terminal device.

[0291] The network device sends CSI-RS (channel state information reference signal) resource configuration information; and the terminal device receives the CSI-RS resource configuration information and reports CSI (channel state information) according to the CSI-RS resource configuration information.

[0292] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and each CSI-RS resource set includes at least one CSI-RS resource used for transmitting the CSI-RS.

[0293] The CSI-RS resource configuration information at least includes first information, and the first information is used to indicate the association information of at least one CSI-RS and at least one source reference signal.

[0294] The embodiments of the present application also provide a network device, which can be a base station for example, but the present application is not limited thereto, and can also be other network devices.

[0295] FIG. 9 is a structural schematic diagram of a network device according to an embodiment of the present application. As shown in FIG. 9, the network device 900 can include a processor 910 (such as a central processing unit CPU) and a memory 920; the memory 920 is coupled to the processor 910. The memory 920 can store various data; in addition, it also stores a program 930 for information processing, and executes the program 930 under the control of the processor 910.

[0296] For example, the processor 910 can be configured to execute programs to implement the operations of the network device in the method as described in the embodiments of the third aspect. For example, the processor 910 can be configured to perform the following control: the network device sends CSI-RS (Channel State Information Reference Signal) resource configuration information; wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets includes at least one CSI-RS resource used to transmit the CSI-RS, and the CSI-RS resource configuration information includes at least first information used to indicate the association information between at least one CSI-RS and at least one source reference signal; and the network device receives the CSI reported based on the CSI-RS resource configuration information.

[0297] In addition, as shown in FIG. 9, the network device 900 can further include a transceiver 940 and an antenna 950, etc.; wherein the functions of the above components are similar to those of the related art, and will not be described here. It is worth noting that the network device 900 does not necessarily include all the components shown in FIG. 9; in addition, the network device 900 can also include components not shown in FIG. 9, which can be referred to the related art.

[0298] The embodiments of the present application also provide a terminal device, but the present application is not limited thereto, and can also be other devices.

[0299] FIG. 10 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 10, the terminal device 1000 can include a processor 1010 and a memory 1020; the memory 1020 stores data and programs and is coupled to the processor 1010. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to achieve telecommunication functions or other functions.

[0300] For example, the processor 1010 can be configured to execute programs to implement the method as described in the embodiments of the first aspect. For example, the processor 1010 can be configured to perform the following control: the terminal device receives CSI-RS (Channel State Information Reference Signal) resource configuration information; wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets includes at least one CSI-RS resource used to transmit the CSI-RS, and the CSI-RS resource configuration information includes at least first information used to indicate the association information between at least one CSI-RS and at least one source reference signal; and the terminal device reports the CSI based on the CSI-RS resource configuration information.

[0301] As shown in FIG. 10, the terminal device 1000 can further include a communication module 1030, an input unit 1040, a display 1050, and a power supply 1060. The functions of the above components are similar to those of the related art, and will not be described here. It should be noted that the terminal device 1000 does not necessarily include all the components shown in FIG. 10, and the above components are not essential; in addition, the terminal device 1000 can include components not shown in FIG. 10, and can refer to the related art.

[0302] The embodiments of the present application further provide a computer program, which, when executed in a terminal device, causes the terminal device to perform the method of the embodiments of the first aspect.

[0303] The embodiments of the present application further provide a storage medium storing a computer program, which causes a terminal device to perform the method of the embodiments of the first aspect.

[0304] The embodiments of the present application further provide a computer program product, which contains at least a computer program, and the computer program causes a terminal device to perform the method of the embodiments of the first aspect when executed by a processor.

[0305] The embodiments of the present application further provide a computer program, which, when executed in a network device, causes the network device to perform the method of the embodiments of the third aspect.

[0306] The embodiments of the present application further provide a storage medium storing a computer program, which causes a network device to perform the method of the embodiments of the third aspect.

[0307] The embodiments of the present application further provide a computer program product, which contains at least a computer program, and the computer program causes a network device to perform the method of the embodiments of the third aspect when executed by a processor.

[0308] The above apparatus and method of the present application can be implemented by hardware, or by hardware combined with software. The present application relates to a computer readable program, which, when executed by a logic component, can cause the logic component to implement the above-described apparatus or components, or to implement the above-described various methods or steps. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0309] The method / apparatus described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination thereof. For example, one or more of the functional blocks shown in the figures and / or one or more combinations of the functional blocks can correspond to individual software modules of a computer program flow, and can also correspond to individual hardware modules. These software modules can correspond to individual steps shown in the figures, respectively. These hardware modules can be implemented by, for example, fixing the software modules with a field programmable gate array (FPGA).

[0310] The software modules can be located in the RAM memory, the flash memory, the ROM memory, the EPROM memory, the EEPROM memory, registers, a hard disk, a mobile disk, the CD-ROM, or any other form of storage medium known in the art. One storage medium can be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium can be an integral part of the processor. The processor and the storage medium can be located in an ASIC. The software modules can be stored in the memory of the mobile terminal, or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a MEGA-SIM card or a large-capacity flash memory device, the software modules can be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0311] One or more of the functional blocks described in conjunction with the figures and / or one or more combinations of the functional blocks can be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof, for performing the functions described in the present application. One or more of the functional blocks described in conjunction with the figures and / or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0312] The present application has been described above with reference to specific embodiments. However, it should be understood by those skilled in the art that the descriptions are exemplary and are not intended to limit the scope of the present application. Those skilled in the art can make various modifications and changes to the present application based on the spirit and principles of the present application, and such modifications and changes are within the scope of the present application.

[0313] In connection with the embodiments including the above embodiments, the following notes are also disclosed:

[0314] 1. An information processing method applied to a terminal device, the method comprising:

[0315] The terminal device receives CSI-RS (channel state information reference signal) resource configuration information.

[0316] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets including at least one CSI-RS resource used for transmitting a CSI-RS,

[0317] The CSI-RS resource configuration information includes at least first information used to indicate association information of at least one CSI-RS and at least one source reference signal.

[0318] The terminal device reports CSI (channel state information) based on the CSI-RS resource configuration information.

[0319] 2. An information processing method applied to a network device, the method comprising:

[0320] The network device sends CSI-RS (channel state information reference signal) resource configuration information.

[0321] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, each of the CSI-RS resource sets including at least one CSI-RS resource used for transmitting a CSI-RS,

[0322] The CSI-RS resource configuration information includes at least first information used to indicate association information of at least one CSI-RS and at least one source reference signal.

[0323] The network device receives CSI reported based on the CSI-RS resource configuration information.

[0324] 3. A terminal device comprising a memory and a processor, the memory storing a computer program, and the processor being configured to execute the computer program to implement the method of the appended item 1.

[0325] 4. A network device comprising a memory and a processor, the memory storing a computer program, and the processor being configured to execute the computer program to implement the method of the appended item 2.

[0326] 5. A computer program product comprising at least a computer program, the computer program being executed by a processor to cause a terminal device to execute the method of the appended item 1.

[0327] 6. A computer program product comprising at least a computer program, the computer program being executed by a processor to cause a network device to execute the method of the appended item 2.

Claims

1. An information processing apparatus configured to operate at a terminal device, the apparatus comprising: a receiving unit configured to receive CSI-RS (channel state information reference signal) resource configuration information; wherein the CSI-RS resource configuration information is configured to configure at least one CSI-RS resource set, each of the CSI-RS resource set comprises at least one CSI-RS resource used for transmitting a CSI-RS, the CSI-RS resource configuration information comprises at least first information configured to indicate association information of at least one CSI-RS and at least one source reference signal; and a sending unit configured to report a CSI (channel state information) based on the CSI-RS resource configuration information. 2.The apparatus of claim 1, wherein: the receiving unit is further configured to receive CSI reporting configuration information, the CSI reporting configuration information is associated with the CSI-RS resource configuration information, and the CSI is further reported based on the CSI reporting configuration information. 3.The apparatus of claim 2, wherein: the CSI reporting configuration information comprises at least reporting quantity information of a PMI (precoding matrix indicator). 4.The apparatus of claim 2, wherein: the CSI reporting configuration information comprises at least association configuration information of the CSI-RS resource configuration information. 5.The apparatus of claim 1, wherein: the CSI-RS resource is a CSI-RS resource used for channel measurement, and the CSI comprises at least a CSI calculated and generated based on the CSI-RS resource. 6.The apparatus of claim 1, wherein: the at least one CSI-RS comprises a first CSI-RS and a second CSI-RS, and the at least one source reference signal comprises a first source reference signal and a second source reference signal. 7.The apparatus of claim 6, wherein: the first information comprises second information configured to configure or indicate or activate at least one first TCI state (transmission configuration indication state), the first TCI state is configured to indicate first quasi co-location parameters, the first CSI-RS is quasi co-located with the first source reference signal and the second CSI-RS is quasi co-located with the second source reference signal in terms of at least one of the first quasi co-location parameters. 8.The apparatus of claim 7, wherein: the first information further comprises third information configured to configure or indicate or activate a second TCI state, the second TCI state is configured to indicate second quasi co-location parameters, the first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal in terms of at least one of the second quasi co-location parameters. 9.The apparatus of claim 8, wherein: the first quasi co-location parameters comprise delay spread, Doppler shift and Doppler spread, the second quasi co-location parameters comprise average delay, delay spread, Doppler shift and Doppler spread, or average delay; or ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The first quasi co-location parameter comprises: average delay, delay spread and Doppler spread, the second quasi co-location parameter comprises: average delay, delay spread, Doppler frequency offset and Doppler spread, or Doppler frequency offset; or The first quasi co-location parameter comprises: delay spread and Doppler spread, and the second quasi co-location parameter comprises: average delay, delay spread, Doppler frequency offset and Doppler spread, or average delay and Doppler frequency offset.

10. The apparatus of claim 7, wherein, The first quasi co-location parameter comprises: delay spread, Doppler frequency offset and Doppler spread, or average delay, delay spread and Doppler spread, or delay spread and Doppler spread. The first information further comprises fourth information, and the fourth information is used to indicate the first source reference signal.

11. The apparatus of claim 8, wherein, The first quasi co-location parameter comprises: average delay, delay spread, Doppler frequency offset and Doppler spread, and the second quasi co-location parameter comprises: average delay; or The first quasi co-location parameter comprises: average delay, delay spread, Doppler frequency offset and Doppler spread, and the second quasi co-location parameter comprises: Doppler frequency offset; or The first quasi co-location parameter comprises: average delay, delay spread, Doppler frequency offset and Doppler spread, and the second quasi co-location parameter comprises: average delay and Doppler frequency offset.

12. The apparatus of claim 7, wherein, The first quasi co-location parameter comprises: average delay, delay spread, Doppler frequency offset and Doppler spread. The first information further comprises fifth information and sixth information, the fifth information is used to indicate the first source reference signal, and the sixth information is used to indicate a third quasi co-location parameter.

13. The apparatus of claim 12, wherein, The first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal in terms of the third quasi co-location parameter, and the third quasi co-location parameter comprises: average delay and / or Doppler frequency offset.

14. The apparatus of claim 1, wherein, The delay and / or frequency offset of the CSI-RS resource is compensated by a network device.

15. An information processing apparatus configured to a network device, the apparatus comprising: a sending unit configured to send channel state information reference signal (CSI-RS) resource configuration information; wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and each CSI-RS resource set comprises at least one CSI-RS resource used to transmit a CSI-RS, the CSI-RS resource configuration information at least comprises first information used to indicate association information of at least one CSI-RS and at least one source reference signal; a receiving unit configured to receive a CSI reported based on the CSI-RS resource configuration information.

16. The apparatus of claim 15, wherein, the at least one CSI-RS comprises a first CSI-RS and a second CSI-RS, and the at least one source reference signal comprises a first source reference signal and a second source reference signal. 17.The apparatus of claim 16, wherein, the first information comprises second information used for configuring or indicating or activating at least one first TCI state (Transmission Configuration Indication state) used for indicating first quasi co-location parameters, according to at least one of the first quasi co-location parameters, the first CSI-RS is quasi co-located with the first source reference signal, and the second CSI-RS is quasi co-located with the second source reference signal. 18.The apparatus of claim 17, wherein, the first information further comprises third information used for configuring or indicating or activating a second TCI state used for indicating second quasi co-location parameters, according to at least one of the second quasi co-location parameters, the first CSI-RS and the second CSI-RS are quasi co-located with the first source reference signal. 19.The apparatus of claim 17, wherein, the first quasi co-location parameters comprise: delay spread, Doppler frequency offset and Doppler spread, or comprise average delay, delay spread and Doppler spread, or comprise delay spread and Doppler spread, the first information further comprises fourth information used for indicating the first source reference signal; or the first quasi co-location parameters comprise: average delay, delay spread, Doppler frequency offset and Doppler spread, the the first information further comprises fifth information used for indicating the first source reference signal and sixth information used for indicating third quasi co-location parameters. 20.A communication system comprising a network device and a terminal device, the network device transmits CSI-RS (Channel State Information Reference Signal) resource configuration information; the terminal device receives the CSI-RS resource configuration information, and reports CSI (Channel State Information) according to the CSI-RS resource configuration information, wherein the CSI-RS resource configuration information is used for configuring at least one CSI-RS resource set, each of the CSI-RS resource sets comprises at least one CSI-RS resource used for transmitting CSI-RS, the CSI-RS resource configuration information comprises at least first information used for indicating association information of at least one CSI-RS and at least one source reference signal.

Images