Information processing method, apparatus, and communication system

Abstract

Embodiments of the present application provide an information processing method, an apparatus, and a communication system. The information processing method comprises: a terminal device receives first information and / or second information from a network device, wherein the first information comprises first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, the second information comprises the first reporting information of the first CSI and / or third information, the first CSI comprises CSI based on M first CSI reference signal (CSI-RS) resources used for channel measurement, the second CSI comprises delay and / or frequency offset information based on N second CSI-RS resource sets, the third information is used for indicating delay and / or frequency offset information of the first CSI-RS resources, and M and N are integers greater than or equal to 1; and the terminal device reports the first CSI on the basis of the first information and / or the second 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 different signals to be superimposed according to different delays and frequency offsets, so that the signals cannot achieve complete synchronous transmission and cannot 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 the central processing unit (CU). Even with enhanced CSI feedback (e.g., based on Release 18 (R18, Release 10) enhanced CSI feedback, etc.), the CSI fed back by the UE still cannot accurately and completely reflect the real channel state quality experienced by the resource ports of C-JT. This reduces the accuracy and reliability of data scheduling, resulting in a decline in data transmission performance and a decline in single-user and network overall throughput.

[0007] To solve 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 used in a terminal device is provided, the apparatus comprising: a receiving unit configured to receive first information and / or second information from a network device, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, and the second information comprising first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources used for channel measurement, the second CSI comprises delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used to indicate delay and / or frequency offset information of the first CSI-RS resources, M and N are integers greater than or equal to 1; and a sending unit configured to report the first CSI according to the first information and / or the second information.

[0009] According to a further aspect of the embodiments of the present application, there is provided an information processing method applied to a terminal device, the method comprising: receiving, by the terminal device, first information and / or second information from a network device, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, the second information comprising first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used for indicating time delay and / or frequency offset information of the first CSI-RS resources, M and N being integers greater than or equal to 1; and reporting, by the terminal device, the first CSI according to the first information and / or the second information.

[0010] According to a further aspect of the embodiments of the present application, there is provided an information processing apparatus configured in a network device, the apparatus comprising: a sending unit configured to send first information and / or second information to a terminal device, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, the second information comprising first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used for indicating time delay and / or frequency offset information of the first CSI-RS resources, M and N being integers greater than or equal to 1; and a receiving unit configured to receive the first CSI reported by the terminal device.

[0011] According to a further 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, first information and / or second information to a terminal device, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, the second information comprising first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used for indicating time delay and / or frequency offset information of the first CSI-RS resources, M and N being integers greater than or equal to 1; and receiving, by the network device, the first CSI reported by the terminal device.

[0012] According to another aspect of the embodiments of the present application, a communication system is provided, which includes a network device and a terminal device, wherein the network device transmits first information and / or second information to the terminal device, the first information includes first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, the second information includes the first reporting information of the first CSI and / or third information, wherein the first CSI includes CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI includes time delay and / or frequency offset information based on N second CSI-RS resource sets, the third information is used for indicating time delay and / or frequency offset information of the first CSI-RS resources, M and N are integers greater than or equal to 1; the terminal device reports the first CSI according to the first information or the second information.

[0013] One of the beneficial effects of the embodiments of the present application is that the terminal device can acquire the first information including the first reporting information of the first CSI and / or the second reporting information of the second CSI and / or the second information including the first reporting information of the first CSI and / or the third information, since the second reporting information and the third information are both information related to time delay and / or frequency offset, the terminal device reports the first CSI according to the first information and / or the second information, which can improve the reliability and accuracy of the first CSI, thereby helping to improve the reliability and accuracy of data scheduling, improve transmission efficiency, enhance data transmission performance, and increase single user and overall network throughput.

[0014] Specific embodiments of the application are disclosed herein, and represented in the accompanying drawings, indicating the principles of the application can be employed. It will be understood that the scope of the embodiments of the present application is not limited in scope by the specific embodiments described herein. In the scope and spirit of the appended claims and the following clauses, the embodiments of the present application include many changes, modifications and equivalents.

[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.

[0016] It should be emphasized that the term "comprises / comprising" when used in this text is taken to mean the presence of stated features, integers, steps or components, but not to the exclusion of one or more other features, integers, steps or 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, as

[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 a method of processing information 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 another schematic diagram of transmission of multiple TRPs according to an embodiment of the application;

[0024] FIGS. 7-8, 9a, 9c-9e are schematic diagrams of a correspondence between a first CSI-RS resource and a second CSI according to an embodiment of the application;

[0025] FIG. 9b is another schematic diagram of transmission of multiple TRPs according to an embodiment of the application;

[0026] FIG. 10 is a schematic diagram of an information processing apparatus according to an embodiment of the application;

[0027] FIG. 11 is another schematic diagram of a method of processing information according to an embodiment of the application;

[0028] FIG. 12 is another schematic diagram of an information processing apparatus according to an embodiment of the application;

[0029] FIG. 13 is a schematic diagram of a network device according to an embodiment of the application;

[0030] FIG. 14 is a schematic diagram of a terminal device according to an embodiment of the application. DETAILED DESCRIPTION

[0031] The foregoing and other features of the application are hereinafter more fully described and understood when considered in connection with the following drawings. In the drawings, specific embodiments of the application are illustrated, which show, by way of illustration, the principles of the application. It will be appreciated that the application is not limited to the particular embodiments described herein but is applied to all features and embodiments within the scope of the claims.

[0032] 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 the terms. The term "and / or" includes any one and all combinations of the associated listed terms. The terms "comprise", "include", "have" and the like mean 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.

[0033] 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.

[0034] In the embodiments of the present application, the term "communication network" or "wireless communication network" can refer to a network that conforms to 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), etc.

[0035] In addition, the communication between devices in the communication system can be carried out according to any stage communication protocol, which 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, etc., and / or other currently known or to be developed in the future communication protocols.

[0036] In embodiments of the present application, the term "network device" refers to, for example, a device that accesses a terminal device into 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.

[0037] The base station can include, but is not limited to, the following devices: node B (NodeB or NB), evolved node B (eNodeB or eNB), and 5G base station (gNB), IAB donor, and the like, and can further include remote radio head (RRH), remote radio unit (RRU), relay, or low-power node (such as femto, pico, and the like). And the term "base station" can include some or all functions thereof, 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.

[0038] 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.

[0039] The terminal equipment 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 computer, cordless phone, smart phone, smart watch, digital camera, and the like.

[0040] For another example, in scenarios such as Internet of Things (IoT), terminal devices can also be machines or apparatuses that perform monitoring or measurement, for example, can include but are not limited to: Machine Type Communication (MTC) terminal, vehicle-mounted communication terminal, Device to Device (D2D) terminal, Machine to Machine (M2M) terminal, etc.

[0041] 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.

[0042] 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;

[0043] 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.

[0044] In addition, the uplink signal can include an uplink data signal and / or an uplink control signal and / or a PRACH and / or a sounding reference signal (SRS), etc., and can also be referred to as 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 a SSB (SS / PBCH block, including PSS, SSS, and PBCH and its DMRS) and / or a CSI-RS, etc., and can also be referred to as 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 an information field included in the RRC message or the RRC information element (or an information field included in the information field). The higher layer signaling can also be, for example, medium access control (MAC) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.

[0045] In the embodiments of the present application, multiple means at least two, or two or more than two.

[0046] 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 directly or indirectly configures / indicates through 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 a field and / or an information element / unit / element (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.

[0047] 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.

[0048] The scenarios of the embodiments of the present application are described below by way of examples, but the present application is not limited thereto.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] In the following description, TP, transmission point, TRP, transmission and reception point, and transceiver 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.

[0056] In the following description, the terms "Doppler shift", "Doppler frequency offset", and "Doppler shift" can be interchanged.

[0057] FIG. 2 is a schematic diagram of a transmission scheme. In which, (a) of FIG. 2 corresponds to a single-transmission reception point (S-TRP) scheme, (b) of FIG. 2 corresponds to a C-JT scheme, and (c) of FIG. 2 corresponds to an NC-JT scheme.

[0058] The specific difference between the C-JT scheme and the NC-JT scheme lies in the different mapping relationships of layers to multiple TRPs. For the C-JT scheme, all PDSCH / DMRS ports jointly transmitted from multiple TRPs and signals from multiple TRPs are coherently transmitted; for the NC-JT scheme, PDSCH / DMRS ports are respectively transmitted from each TRP.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] (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 the 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.

[0064] (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:

[0065] wherein, w k (i) is the PMI information of the kth transmission point, 0≤k≤K.

[0066] (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:

[0067] 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:

[0068] For frequency range 1 (FR1), i.e. less than 6GHz, X = 2, S t = 4, N = 2;

[0069] For frequency range 2 (FR2), i.e. greater than 6GHz, X = 1 or 2, S t = 4, N = 2

[0070] 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.

[0071] 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.

[0072] Wherein, one resource is one symbol, so a burst needs 2 or 4 TRS.

[0073] 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'.

[0074] e) In Rel-18, in order to enhance the measurement of Doppler frequency offset in high-speed mobile scenarios, NR supports the reporting of time-domain correlation based on multiple delay paths of TRS, mainly to reflect the time-varying nature of different channels caused by Doppler. For example, TDCP (Time Domain correlation parameter) reporting. Among them:

[0075] 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:

[0076] 1. The amplitude of the time-domain correlation value can be completed by the following formula based on the UE implementation algorithm:

[0077] Where,

[0078] Where, A(t,τ) is the amplitude of the time-domain correlation value, c(t,τ) is the correlation value of the nth time delay path t and the time-domain channel response h n (t) and h n (t+τ) at t and t+τ.

[0079] 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)

[0080] Table 1 is the definition of the reporting quantity and the calculation formula of the reporting quantity.

[0081] Table 1 Definition of reporting quantity and calculation formula of reporting quantity

[0082] ii. When the reporting quantity is 'tdcp', the CSI reporting configuration (CSI reportconfig) can have the following configurations:

[0083] 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.

[0084] 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, and where the values D i > D basic can be configured subject to UE capability, with D basic = 1 slot (The configurable delay values are D 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).

[0085] 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 OFDM symbols separated by Dn OFDM symbols.

[0086] 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.

[0087] 5. TDCP reporting phase quantization (Y > 1 only): a) Θ(D) supports uniform quantization of 16PSK.

[0088] 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.).

[0089] 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:

[0090] 1) The base station configures N TRS sets for the terminal for the measurement of time-frequency information of N TRPs;

[0091] 2) The terminal measures the time-frequency information of N TRPs based on the N TRS sets, and calculates and reports the time delay reference TRP_X and the frequency offset reference TRP_Y, respectively;

[0092] For example, the TRP with the smallest absolute value of time delay can be selected as the time delay reference TRP_X;

[0093] For example, the TRP with the minimum absolute value of frequency offset can be selected as the frequency offset reference TRP_Y.

[0094] 3) The terminal reports the delay difference and the frequency offset difference of the remaining N-1 TRPs relative to the delay reference TRP_X and the frequency offset reference TRP_Y.

[0095] Therefore, the base station receives the delay reference TRP_X and the frequency offset reference TRP_Y, and the delay difference and the frequency offset difference of the remaining N-1 TRPs reported by the terminal. In this way, the delay and / or frequency offset information of the remaining N-1 TRPs can be pre-compensated in subsequent data transmission (e.g., PDSCH, etc.). Thus, in subsequent transmission, the delay information of the N TRPs is equal to the delay information of the 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.

[0096] FIG. 3 is a schematic diagram of transmission of multiple TRPs according to an embodiment of the present application. As shown in FIG. 3, the 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 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 delay T1 and / or the Doppler frequency F1 corresponding to TRP1 are determined according to TRS1; the average delay T2 and / or the Doppler frequency F2 corresponding to TRP2 are determined according to TRS2; and the average delay T3 and / or the Doppler frequency F3 corresponding to TRP3 are determined according to TRS3.

[0097] Taking TRP1 as the 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 in terms of delay and frequency offset, and the average delay and Doppler frequency of the PDSCH of TRP2 and TRP3 are equal to those of the PDSCH of the reference TRP (i.e., TRP1), for example, the average delay is T1 and the Doppler frequency is F1.

[0098] The current discussion is limited to the measurement of the 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, including the measurement of PMI, RI, and CQI. 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 for pre-compensating the CSI-RS used to obtain the above CSI measurement information.

[0099] To address at least one of the above issues, embodiments of the present application provide a method, apparatus and communication system for information processing. In the following description, parameters appearing with the same letter as in the foregoing description have the meaning described later in the absence of a specific indication.

[0100] Embodiments of the first aspect

[0101] Embodiments of the present application provide a method for information processing, which is described from the terminal device side. 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:

[0102] 401. The terminal device receives first information and / or second information from a network device; and

[0103] 402. The terminal device reports first channel state information according to the first information and / or the second information.

[0104] The first information comprises first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, and the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, M and N are integers greater than or equal to 1.

[0105] The second information comprises first reporting information of the first CSI and / or third information, the first CSI comprises CSI based on M first CSI-RS resources for channel measurement, and the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resources, M is an integer greater than or equal to 1.

[0106] According to the above embodiments, the terminal device can obtain the first information comprising the first reporting information of the first CSI and / or the second reporting information of the second CSI, and / or the second information comprising the first reporting information of the first CSI and / or the third information. Since the second reporting information and the third information are both information related to time delay and / or frequency offset, the terminal device reports the first CSI according to the first information and / or the second information, which can improve the reliability and accuracy of the first CSI, thereby helping to improve the reliability and accuracy of data scheduling, improve transmission efficiency, enhance data transmission performance, increase single user and overall network throughput.

[0107] 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 received based on the pre-compensated C-JT channel.

[0108] Through the above embodiments of the present application, the terminal device can obtain the delay and / or frequency offset information related to the CSI-RS, and then can receive the CSI-RS based on the delay and / or frequency offset information (for example, the UE pre-compensates the delay and / or frequency offset of the CSI-RS). In this way, the CSI generated based on the above method can reliably and accurately reflect the channel state of the corresponding PDSCH, thereby helping to improve the reliability and accuracy of data scheduling.

[0109] Hereinafter, the method of the embodiments of the present application is exemplarily described taking the reporting of CSI according to the first information as an example.

[0110] In some embodiments, the first CSI at least includes CSI based on one or more first CSI-RS resources for channel measurement, for example, CSI obtained by measuring the first CSI-RS transmitted on the first CSI-RS resource. The first CSI-RS can also be referred to as a CSI-RS for channel measurement. The first CSI can include at least one of PMI, RI, and CQI.

[0111] In some embodiments, the first reporting information in the first information can be reporting setting information of the first CSI. The reporting setting information of the first CSI is used to indicate, for example, the reporting amount of the first CSI, etc. The reporting amount includes, for example, at least one of PMI, RI, and CQI based on the CSI-RS for channel measurement.

[0112] In some embodiments, the second CSI at least includes delay and / or frequency offset information obtained by measuring one or more second CSI-RS resource sets. For example, CSI obtained by measuring a set of second CSI-RSs transmitted on the second CSI-RS resource set. The second CSI-RS can include at least one of the following: TRS for time-frequency tracking, CSI-RS for channel measurement, and CSI-RS for beam management. The second CSI can include delay information and / or Doppler information.

[0113] In some embodiments, the second reporting information in the first information can be reporting setting information of the second CSI. The reporting setting information of the second CSI is used to indicate, for example, reporting amount information of the second CSI, which includes, for example, time delay information and / or Doppler information.

[0114] In some embodiments, the time delay and / or frequency offset of the first CSI-RS resource can be compensated by the terminal device. Wherein, the UE can compensate the time delay and / or frequency offset of the first CSI-RS resource according to the following assumptions:

[0115] The first CSI-RS resource is associated with the second CSI-RS resource set, that is, the time delay and / or frequency offset information of the first CSI-RS resource can be determined based on the associated or corresponding second CSI-RS resource set; and / or,

[0116] The first CSI-RS resource is associated with the second CSI, that is, the time delay and / or frequency offset information of the first CSI-RS resource can be determined based on the associated or corresponding second CSI.

[0117] Taking the association between the first CSI-RS resource and the second CSI-RS resource set as an example:

[0118] In some embodiments, the first CSI-RS resource and the second CSI-RS resource set can be associated in various ways.

[0119] For example, the base station configures N second CSI-RS resource sets for the terminal device, which are used for the measurement of the time-frequency information of N TRPs; the base station configures M first CSI-RS resources for the terminal device, which are used for the channel measurement of M TRPs.

[0120] In the case of N=M, the terminal device can consider that the N second CSI-RS resource sets correspond one-to-one to the M first CSI-RS resources.

[0121] 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, the UE communicates with 3 TRPs. The UE is configured with 3 TRS resource sets (an example of the second CSI-RS resource set), for example, TRS resource set 1, TRS resource set 2, and TRS resource set 3.

[0122] TRP1 sends TRS1 to the UE, TRP2 sends TRS2 to the UE, and TRP3 sends TRS3 to the UE. The TRS1, TRS2, and TRS3 correspond to the TRS resource set 1, TRS resource set 2, and TRS resource set 3, respectively.

[0123] 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 Doppler frequency offset F1 corresponding to TRP1 are determined according to TRS1; the average time delay T2 and Doppler frequency offset F2 corresponding to TRP2 are determined according to TRS2; and the average time delay T3 and Doppler frequency offset F3 corresponding to TRP3 are determined according to TRS3.

[0124] The UE is configured with 3 CSI-RS resources (first CSI-RS resources), for example, CSI-RS resource 1, CSI-RS resource 2 and CSI-RS resource 3.

[0125] As shown in FIG. 5, before data transmission (for example, PDSCH transmission), TRP1 also sends CSI-RS1 to the UE, TRP2 also sends CSI-RS2 to the UE, and TRP3 also sends CSI-RS3 to the UE. The CSI-RS1, CSI-RS2 and CSI-RS3 correspond to the CSI-RS resource 1, CSI-RS resource 2 and CSI-RS resource 3 respectively.

[0126] Since the number of TRS resource sets configured for the UE is equal to the number of CSI-RS resources configured, the UE can consider that the 3 CSI-RS resources correspond to the 3 TRS resource sets one by one.

[0127] For example, the i-th CSI-RS resource corresponds to the i-th TRS resource set, i is the index of the CSI-RS resource and the TRS resource set, i is greater than or equal to 0 and less than or equal to N-1, or i is greater than or equal to 1 and less than or equal to N. The present application is not limited to this, and the CSI-RS resource and the TRS resource set can also correspond to each other in other ways.

[0128] After determining the correspondence between the CSI-RS resource and the TRS resource set, the UE can determine the time delay and / or frequency offset information of the CSI-RS resource corresponding to the TRS resource set according to the time delay and / or frequency offset information of the TRS resource set (i.e., the time delay and / or frequency offset information determined according to the TRS corresponding to the TRS resource set), thereby pre-compensating the time delay and / or frequency offset of the CSI-RS on the CSI-RS resource.

[0129] In some embodiments, when M and N are not equal, the first information can further include first indication information, which can be used to indicate the correspondence information between the first CSI-RS resource and the second CSI-RS resource set.

[0130] For example, the base station configures N second CSI-RS resource sets for the terminal for measurement of time-frequency information of N TRPs; and configures M first CSI-RS resources for the terminal for channel measurement of M TRPs.

[0131] In the case where N is not equal to M, the terminal device can further determine the correspondence between the second CSI-RS resource set and the M first CSI-RS resources according to the first indication information.

[0132] FIG. 6 is another schematic diagram of transmission of multiple TRPs according to an embodiment of the present application. As shown in FIG. 6, a UE communicates with 3 TRPs. The UE is configured with 3 TRS resource sets, for example, TRS resource set 1, TRS resource set 2, and TRS resource set 3.

[0133] TRP1 transmits TRS1 to the UE, TRP2 transmits TRS2 to the UE, and TRP3 transmits TRS3 to the UE. The TRS1, TRS2, and TRS3 correspond to the TRS resource set 1, TRS resource set 2, and TRS resource set 3 respectively.

[0134] 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 UE determines the average time delay T1 and Doppler frequency F1 corresponding to TRP1 according to TRS1; determines the average time delay T2 and Doppler frequency F2 corresponding to TRP2 according to TRS2; and determines the average time delay T3 and Doppler frequency F3 corresponding to TRP3 according to TRS3.

[0135] The UE is configured with 2 CSI-RS resources, for example, CSI-RS resource 1 and CSI-RS resource 2.

[0136] As shown in FIG. 6, before data transmission, TRP1 further transmits CSI-RS1 to the UE, and TRP2 further transmits CSI-RS2 to the UE. The CSI-RS1 and CSI-RS2 correspond to the CSI-RS resource 1 and CSI-RS resource 2 respectively.

[0137] Since the number of TRS resource sets configured for the UE is not equal to the number of CSI-RS resources configured, the UE can determine the correspondence between the 2 CSI-RS resources and the 3 TRS resource sets according to the first indication information.

[0138] In some embodiments, the first indication information can be in various forms.

[0139] For example, the first indication information includes a bit map, and the bit map has a length of N bits, where M bits have a first value.

[0140] The first value can be 1. The application is not limited thereto, and the first value can also be 0.

[0141] As shown in FIG. 6, the first indication information is 110, indicating that the first TRS resource set of the 3 TRS resource sets corresponds to the first CSI-RS resource of the 2 CSI-RS resources, and the second TRS resource set of the 3 TRS resource sets corresponds to the second CSI-RS resource of the 2 CSI-RS resources.

[0142] Alternatively, the first indication information is 101, indicating that the first TRS resource set of the 3 TRS resource sets corresponds to the first CSI-RS resource of the 2 CSI-RS resources, and the third TRS resource set of the 3 TRS resource sets corresponds to the second CSI-RS resource of the 2 CSI-RS resources.

[0143] For another example, the first indication information includes M*log(N) bits.

[0144] As shown in FIG. 6, the first indication information can be bits. For example, the first indication information can be 0001, where the first two bits 00 indicate that the first TRS resource set of the 3 TRS resource sets corresponds to the first CSI-RS resource of the 2 CSI-RS resources, and the last two bits 01 indicate that the second TRS resource set of the 3 TRS resource sets corresponds to the second CSI-RS resource of the 2 CSI-RS resources.

[0145] In some embodiments, when M and N are not equal, the correspondence information between the first CSI-RS resource and the second CSI-RS resource set can also not be indicated by additional information.

[0146] For example, when M and N are not equal, the M first CSI-RS resources correspond to the first M second CSI-RS resource sets of the N second CSI-RS resource sets in one-to-one correspondence.

[0147] The first M second CSI-RS resource sets are, for example, the first M resource sets in the order of the index of the second CSI-RS resource set.

[0148] As shown in FIG. 6, the UE is configured with 3 TRS resource sets, for example, in the order of small to large resource set index, they are TRS resource set 1, TRS resource set 2, and TRS resource set 3. The UE is configured with 2 CSI-RS resources, for example, in the order of small to large resource set index, they are CSI-RS resource 1 and CSI-RS resource 2.

[0149] The UE can consider that the CSI-RS resource 1 corresponds to the TRS resource set 1, and the CSI-RS resource 2 corresponds to the TRS resource set 2.

[0150] For another example, when M and N are not equal, M first CSI-RS resources correspond to M second CSI-RS resource sets in the N second CSI-RS resource sets, where the M second CSI-RS resource sets can be the first M second CSI-RS resource sets in the N second CSI-RS resource sets sorted in ascending order of the corresponding time delay and / or frequency offset, or the first M second CSI-RS resource sets in the N second CSI-RS resource sets sorted in descending order of the corresponding time delay and / or frequency offset. That is, the M second CSI-RS resource sets with the smallest or largest time delay and / or frequency offset are selected from the N second CSI-RS resource sets as the resource sets corresponding to the M first CSI-RS resources.

[0151] Taking the first CSI-RS resource and the second CSI as an example:

[0152] In some embodiments, the first CSI-RS resource and the second CSI can be associated in various ways.

[0153] For example, the second CSI includes time delay and / or frequency offset information associated with X second CSI-RS resource sets in the N second CSI-RS resource sets. As described above, X can be equal to N-1, but the present application is not limited thereto, and X can also be other values.

[0154] In the case of M=X+1, the terminal device can consider that M-1 first CSI-RS resources in the M first CSI-RS resources correspond to the X time delay and / or frequency offset information in one-to-one correspondence.

[0155] Wherein, the M-1 first CSI-RS resources are the first CSI-RS resources except the first one in the M first CSI-RS resources. That is, the M-1 first CSI-RS resources are the second CSI-RS resource, …, the Mth first CSI-RS resource in the M first CSI-RS resources.

[0156] Or, the first CSI-RS resources except the one indicated by the network device in the M first CSI-RS resources. The present application is not limited thereto, and the M-1 first CSI-RS resources can also have other meanings.

[0157] FIG. 7 is a schematic diagram of the correspondence between the first CSI-RS resource and the second CSI according to an embodiment of the present application. As shown in FIG. 7, the UE is configured with 4 first CSI-RS resources: CSI-RS#1, CSI-RS#2, CSI-RS#3 and CSI-RS#4.

[0158] The second CSI includes three sets of time delay and / or frequency offset information corresponding to three TRS resource sets: DO / FO#1, DO / FO#2 and DO / FO#3. For example, DO / FO#1, DO / FO#2 and DO / FO#3 are the time delay and / or frequency offset differences of the three TRPs relative to the reference TRP.

[0159] In this case, the UE can consider that the three sets of time delay and / or frequency offset information correspond to the second, third and fourth CSI-RS resources among the four CSI-RS resources.

[0160] For example, DO / FO#1 corresponds to CSI-RS#2, DO / FO#2 corresponds to CSI-RS#3, and DO / FO#3 corresponds to CSI-RS#4. The present application is not limited thereto, and the CSI-RS resources and the sets of time delay and / or frequency offset information can also correspond to each other in other manners.

[0161] After determining the correspondence between the CSI-RS resources and the sets of time delay and / or frequency offset information, the UE can determine the time delay and / or frequency offset information of the CSI-RS resources according to the corresponding sets of time delay and / or frequency offset information, so as to pre-compensate the time delay and / or frequency offset of the CSI-RS on the CSI-RS resources.

[0162] FIG. 8 is another schematic diagram of the correspondence between the first CSI-RS resources and the second CSI according to an embodiment of the present application. Similar to FIG. 7, the UE is configured with four first CSI-RS resources: CSI-RS#1, CSI-RS#2, CSI-RS#3 and CSI-RS#4. The second CSI includes three sets of time delay and / or frequency offset information corresponding to three TRS resource sets: DO / FO#1, DO / FO#2 and DO / FO#3.

[0163] In this case, the UE can consider that the three sets of time delay and / or frequency offset information correspond to the second, third and fourth CSI-RS resources among the four CSI-RS resources.

[0164] For example, DO / FO#1 corresponds to CSI-RS#1, DO / FO#2 corresponds to CSI-RS#3, and DO / FO#3 corresponds to CSI-RS#4. The present application is not limited thereto, and the CSI-RS resources and the sets of time delay and / or frequency offset information can also correspond to each other in other manners.

[0165] After determining the correspondence between the CSI-RS resource and the time delay and / or frequency offset information, the UE can determine the time delay and / or frequency offset information of the CSI-RS resource according to the corresponding time delay and / or frequency offset information, so as to pre-compensate the time delay and / or frequency offset of the CSI-RS on the CSI-RS resource.

[0166] In some embodiments, when M is not equal to X+1, the first information further includes second indication information, and the second indication information is used to indicate the correspondence information between the first CSI-RS resource and the second CSI.

[0167] FIG. 9a is another schematic diagram of the correspondence between the first CSI-RS resource and the second CSI according to an embodiment of the present application. As shown in FIG. 9a, the UE is configured with 3 first CSI-RS resources: CSI-RS#1, CSI-RS#2 and CSI-RS#3, wherein the CSI-RS#1 is the first CSI-RS resource corresponding to the reference TRP. The second CSI includes time delay and / or frequency offset information corresponding to 3 TRS resource sets: DO / FO#1, DO / FO#2 and DO / FO#3.

[0168] In this case, the number of the first CSI-RS resources M is not equal to the number of the time delay and / or frequency offset information X+1, and the UE can determine the correspondence between the 2 CSI-RS resources and the 3 TRS resource sets according to the second indication information.

[0169] In some embodiments, the second indication information can be in various forms.

[0170] For example, the second indication information includes a bit map, and the bit map has a length of X bits, wherein M-1 bits have a first value.

[0171] As shown in FIG. 9a, the second indication information is 110, indicating that the DO / FO#1 in the 3 time delay and / or frequency offset information corresponds to the 1st CSI-RS resource in the 2 CSI-RS resources, and the DO / FO#2 corresponds to the 2nd CSI-RS resource in the 2 CSI-RS resources.

[0172] For another example, the second indication information includes (M-1)*log(X) bits.

[0173] As shown in FIG. 9a, the second indication information can be (M-1)*log(X) bits. For example, the second indication information can be 0001, wherein the first two bits 00 indicate that the DO / FO#1 in the 3 time delay and / or frequency offset information corresponds to the 1st CSI-RS resource in the 2 CSI-RS resources, and the last two bits 01 indicate that the DO / FO#2 corresponds to the 2nd CSI-RS resource in the 2 CSI-RS resources. ​

[0174] In some embodiments, the correspondence information between the first CSI-RS resources and the second CSI can also not be indicated by additional information when M and X+1 are not equal.

[0175] For example, when M is not equal to X+1, M-1 first CSI-RS resources of the M first CSI-RS resources correspond one-to-one to the first M-1 delay and / or frequency offset information of the X delay and / or frequency offset information.

[0176] For example, when M is not equal to X+1, M-1 first CSI-RS resources of the M first CSI-RS resources correspond one-to-one to the first M-1 delay and / or frequency offset information of the X delay and / or frequency offset information, wherein the M-1 delay and / or frequency offset information are: the first M-1 delay and / or frequency offset information of the X delay and / or frequency offset information sorted in ascending order, or the first M-1 delay and / or frequency offset information of the X delay and / or frequency offset information sorted in descending order.

[0177] Hereinafter, the method of the embodiments of the present application will be exemplarily described by taking the reporting of CSI according to the second information as an example.

[0178] In some embodiments, the second information can include the aforementioned first reporting information and / or third information. The content about the first reporting information can refer to the foregoing content, which is incorporated herein, and will not be described repeatedly.

[0179] As to the third information, the third information is used to indicate the delay and / or frequency offset information of the first CSI-RS resource for channel measurement. Since the network device directly indicates the delay and / or frequency offset information of the M first CSI-RS resources through the third information, the UE can pre-compensate the delay and / or frequency offset of the first CSI-RS according to the delay and / or frequency offset information of the M first CSI-RS resources, thereby improving the reliability and accuracy of the first CSI.

[0180] In some embodiments, the third information can include the absolute value of the delay and / or frequency offset of the first CSI-RS resource.

[0181] In some embodiments, the third information can include M average delay values and / or Doppler shift values; or the third information can include M-1 relative average delay values and / or relative Doppler shift values.

[0182] In some embodiments, when the third information includes M average delay values and / or Doppler shift values, the M average delay values and / or Doppler shift values correspond one-to-one to the M first CSI-RS resources.

[0183] In some embodiments, the M average delay values and / or Doppler shift values can be in one-to-one correspondence with the M first CSI-RS resources in various manners.

[0184] For example, the M average delay values and / or Doppler shift values can be in one-to-one correspondence with the M first CSI-RS resources according to index values. For example, the 1st average delay value and / or Doppler shift value corresponds to the 1st first CSI-RS resource, the 2nd average delay value and / or Doppler shift value corresponds to the 2nd first CSI-RS resource, and so on, and the Mth average delay value and / or Doppler shift value corresponds to the Mth first CSI-RS resource.

[0185] In some embodiments, when the third information includes M-1 average delay values and / or Doppler shift values, the M-1 average delay values and / or Doppler shift values can be in one-to-one correspondence with M-1 first CSI-RS resources of the M first CSI-RS resources.

[0186] The content about the M-1 first CSI-RS resources can refer to the foregoing content, which is incorporated herein by reference, and will not be described again.

[0187] In some embodiments, the M-1 average delay values and / or Doppler shift values can be in one-to-one correspondence with the M-1 first CSI-RS resources in various manners.

[0188] For example, the M-1 average delay values and / or Doppler shift values can be in one-to-one correspondence with the M-1 first CSI-RS resources according to index values. For example, the 1st average delay value and / or Doppler shift value corresponds to the 1st first CSI-RS resource of the M-1 first CSI-RS resources, the 2nd average delay value and / or Doppler shift value corresponds to the 2nd first CSI-RS resource of the M-1 first CSI-RS resources, and so on, and the M-1th average delay value and / or Doppler shift value corresponds to the M-1th first CSI-RS resource of the M-1 first CSI-RS resources.

[0189] The present application is not limited thereto, and the third information can also be other delay and / or frequency offset information for indicating the first CSI-RS resource. For example, the third information can be index information of the average delay values and / or Doppler shift values reported by the UE, for example, the third information includes index values of M-1 average delay values and / or Doppler shift values. In this way, signaling overhead can be saved.

[0190] The M-1 index values and the M-1 first CSI-RS resources can be one-to-one corresponding in various ways. For example, the M-1 index values and the M-1 first CSI-RS resources are one-to-one corresponding according to the index values. For example, the first index value corresponds to the first first CSI-RS resource in the M-1 first CSI-RS resources, the second index value corresponds to the second first CSI-RS resource in the M-1 first CSI-RS resources, and so on, and the M-1 index value corresponds to the M-1 first CSI-RS resource in the M-1 first CSI-RS resources.

[0191] In some embodiments, the third information is indicated by at least one of a radio resource control (RRC) message, a medium access control control element (MAC CE), and downlink control information (DCI).

[0192] In the following, the information processing method of the present application is exemplarily described in connection with specific embodiments.

[0193] The CSI-RS for obtaining the CSI measurement information is received based on the pre-compensated CJT channel.

[0194] When the terminal reports the time delay and / or frequency offset information based on the TRS measurement, the base station does not pre-compensate the time delay and / or frequency offset of the CSI-RS for obtaining the CSI measurement information.

[0195] Optionally, when the terminal receives the CSI-RS, the reception can be assumed by one of the following schemes:

[0196] Method 1: the terminal side assumes based on the following association relationship:

[0197] The first CSI reporting setting configured by the base station side is associated with the second CSI reporting setting. Among them, the first CSI reporting setting is the reporting setting of the current CSI measurement, and the second CSI reporting setting is the reporting setting of the time delay and / or frequency offset information.

[0198] Case one: the number of TRS sets in the associated resource configuration in the second CSI reporting setting is equal to the number of CSI-RSs in the associated resource configuration in the first reporting setting (that is, the number of TRP measurements of the two CSI configurations is consistent), and the terminal device can consider that the TRS set and the CSI-RS are one-to-one corresponding, and the terminal device can directly compensate all CSI-RSs based on the second CSI reporting setting.

[0199] Case two: the number N of TRS sets in the resource configuration associated in the second reporting setting is greater than the number M of CSI-RSs in the resource configuration associated in the first reporting setting (i.e., the number of TRP measurements of the two CSI configurations is inconsistent), and the terminal device can compensate for the CSI-RS based on or not based on additional configuration information.

[0200] For example, the configuration of M CSI-RSs can be performed through an N bitmap, where M is the number of values of 1 in the N bitmap.

[0201] For example, the configuration of M CSI-RSs can be performed through an N bitmap, where M is the number of values of 1 in the N bitmap. For example, the configuration of M CSI-RSs can be performed through an N bitmap, where M is the number of values of 1 in the N bitmap.

[0202] For example, the M CSI-RSs correspond one-to-one to the first M TRS sets in the N TRS sets.

[0203] For example, the M CSI-RSs correspond one-to-one to the first M TRS sets in the N TRS sets.

[0204] Method 2:

[0205] The first CSI reporting setting configured by the base station is associated with the second CSI. Wherein, the first CSI reporting setting is the reporting setting of the current CSI measurement, and the second CSI is the time delay and / or frequency offset information measured by the UE.

[0206] Case one: the number X+1 of time delay and / or frequency offset information in the second CSI is equal to the number M of CSI-RSs in the resource configuration associated in the first reporting setting (i.e., the number of TRP measurements of the two CSI configurations is consistent), and the terminal device can consider that the X time delay and / or frequency offset information correspond one-to-one to the M-1 CSI-RSs, which are the 2nd to Mth CSI-RSs or the CSI-RSs other than the CSI-RS specified by the network device. The terminal device can directly compensate for the CSI-RS based on the second CSI.

[0207] Case two: the number X+1 of time delay and / or frequency offset information in the second CSI is not equal to the number M of CSI-RSs in the resource configuration associated in the first reporting setting (i.e., the number of TRP measurements of the two CSI configurations is inconsistent), and the terminal device can compensate for the CSI-RS based on or not based on additional configuration information.

[0208] For example, the configuration of M-1 CSI-RSs can be performed through an X bitmap, where M-1 is the number of values of 1 in the X bitmap.

[0209] For example, the configuration of M-1 CSI-RSs can be performed through an X bitmap, where M-1 is the number of values of 1 in the X bitmap.​

[0210] For example, M-1 CSI-RSs correspond to the first M-1 of X time delay and / or frequency offset information one by one.

[0211] For example, M-1 CSI-RSs correspond to the time delay and / or frequency offset information with the minimum time delay and / or frequency offset value of the first M-1 of X time delay and / or frequency offset information.

[0212] Method 3: The terminal device compensates for the time delay and frequency offset of the M CSI-RSs based on one of the following configurations.

[0213] The base station can indicate the configuration of the absolute value of the time delay and / or frequency offset based on at least one of RRC, MAC CE, and DCI.

[0214] The following is described through specific embodiments.

[0215] Step 1: The terminal device receives first CSI reporting information, which can be a first CSI reporting setting, wherein the reporting quantity in the first CSI reporting setting includes PMI information. The first CSI reporting setting is also associated with a first CSI-RS resource configuration, which includes at least one CSI-RS resource set, and each resource set includes M CSI-RS resources for channel measurement.

[0216] Step 2: The terminal device receives second CSI reporting information, which can be a second CSI reporting setting, wherein the reporting quantity in the second CSI reporting setting includes time delay and / or frequency offset information. The first CSI reporting setting is also associated with a second CSI-RS resource configuration, which can include N=3 CSI-RS resource sets, and each resource set is used to calculate time delay and / or frequency offset information.

[0217] The second CSI-RS resource configuration can include the following three TRS resource sets, and each TRS resource set is transmitted by each TRP independently.

[0218] FIG. 9b is another schematic diagram of transmission of multiple TRPs according to an embodiment of the present application. As shown in FIG. 9b, the terminal device can be based on three TRS (when the CSI-RS configuration is trs_info) resource sets, wherein TRS set 1 is transmitted by TRP1, TRS set 2 is transmitted by TRP2, and TRS set 3 is transmitted by TRP3.

[0219] Step 3: The terminal device can calculate X time delay and / or frequency offset information differences about the reference TRP through joint operation of the three TRS resource sets.

[0220] For example, TRS set 1 transmitted by TRP1 is the reference TRP, and the terminal needs to report X = M-1 = 2 time delay and / or frequency offset information differences, ΔD1 = T2-T1, ΔD2 = T3-T1, ΔF1 = F2-F1, ΔF2 = F3-F1. Wherein, ΔD1, ΔF1 can be represented as DO / FO#1, ΔD2, ΔF2 can be represented as DO / FO#2.

[0221] Step 4: After receiving the first CSI reporting information on the terminal side, the first CSI-RS resource can be pre-compensated through the association configuration of the second CSI, which can eliminate the time delay and / or frequency offset of the CSI-RS resource used for PMI calculation, so as to achieve the effect that all TRPs can be transmitted synchronously. Wherein, the relationship between M and N, M and X leads to the following different schemes:

[0222] Step 4-1: The association configuration information is the association relationship between the M first CSI-RS resources and the N second CSI resource sets.

[0223] When M=N=3, the first CSI-RS resource corresponds to the second CSI-RS resource set one by one.

[0224] For example, CSI-RS1 corresponds to TRS set 1, CSI-RS2 corresponds to TRS set 2, and CSI-RS3 corresponds to TRS set 3.

[0225] Therefore, when the terminal side receives CSI-RS2, it can be assumed that the time delay and / or frequency domain offset between CSI-RS2 and CSI-RS1 and TRS set1 and TRS set2 are consistent, so the terminal side can perform pre-compensation of time delay and / or frequency offset information according to ΔD1 = T2-T1, ΔF1 = F2-F1 when receiving CSI-RS2. The way to receive CSI-RS3 is similar. Thus, the time delay and / or frequency offset information of CSI-RS1, CSI-RS2, and CSI-RS3 are synchronized.

[0226] When M=2<N=3, the corresponding information between the first CSI-RS resource and the second CSI-RS resource set is indicated by the first indication information.

[0227] Method one: N=3 bits of bitmap can be used, the bitmap length is N bits, including M bits with the first value ('1'),

[0228] For example, 110 indicates that CSI-RS1 corresponds to TRS set 1, and CSI-RS2 corresponds to TRS set 2.

[0229] The second mode: the first indication information includes M*log(N) = 2log(3) bits.

[0230] For example, 0001 indicates that CSI-RS 1 corresponds to TRS set 1, and CSI-RS 2 corresponds to TRS set 2.

[0231] Therefore, when the terminal side receives CSI-RS 2, it can be assumed that the time delay and / or frequency domain deviation of CSI-RS 2 and CSI-RS 1 and TRS set 1 and TRS set 2 are consistent, so that the terminal side can perform pre-compensation of time delay and / or frequency deviation information according to ΔD1 = T2-T1, ΔF1 = F2-F1 when receiving CSI-RS 2. Thus, the time delay and / or frequency deviation information of CSI-RS 1 and CSI-RS 2 are synchronized.

[0232] When M = 2 < N = 3, the M first CSI-RS resources correspond one-to-one to the first M second CSI-RS resource sets in the N second CSI-RS resource sets.

[0233] For example, two CSI-RS resources correspond one-to-one to the first two TRS sets. CSI-RS 1 corresponds to TRS set 1, and CSI-RS 2 corresponds to TRS set 2.

[0234] Therefore, when the terminal side receives CSI-RS 2, it can be assumed that the time delay and / or frequency domain deviation of CSI-RS 2 and CSI-RS 1 and TRS set 1 and TRS set 2 are consistent, so that the terminal side can perform pre-compensation of time delay and / or frequency deviation information according to ΔD1 = T2-T1, ΔF1 = F2-F1 when receiving CSI-RS 2. Thus, the time delay and / or frequency deviation information of CSI-RS 1 and CSI-RS 2 are synchronized.

[0235] When M = 2 < N = 3, the M first CSI-RS resources correspond one-to-one to the first M second CSI-RS resource sets in the N second CSI-RS resource sets.

[0236] Step 4-2: The association configuration information is the association relationship between the M first CSI-RS resources and the X time delay and / or frequency deviation information.

[0237] When M = X + 1 = 3, M-1 of the M first CSI-RS resources correspond one-to-one to the X time delay and / or frequency deviation information.

[0238] The first CSI-RS resource and the second CSI-RS resource correspond to the X time delay and / or frequency offset information.

[0239] FIG. 9c is another schematic diagram of the correspondence between the first CSI-RS resource and the second CSI according to an embodiment of the present application. As shown in FIG. 9c, since DO / FO#1 (ΔD1, ΔF1) is the difference between TRS set2 and TRS set1, the terminal can also assume that this value corresponds to CSI-RS 2, which represents the time delay and / or frequency domain offset between CSI-RS 2 and CSI-RS 1. Therefore, the terminal side can perform pre-compensation of the time delay and / or frequency offset information according to ΔD1=T2-T1 and ΔF1=F2-F1 when receiving CSI-RS 2. Thus, the time delay and / or frequency offset information of CSI-RS 1 and CSI-RS 2 are synchronized.

[0240] The first CSI-RS resource and the second CSI-RS resource correspond to the X time delay and / or frequency offset information.

[0241] FIG. 9d is another schematic diagram of the correspondence between the first CSI-RS resource and the second CSI according to an embodiment of the present application. As shown in FIG. 9d, since the reference resource is CSI-RS 2, at this time, DO / FO#1 (ΔD1, ΔF1) is the difference between TRS set1 and TRS set2, i.e., ΔD1=T1-T2 and ΔF1=F1-F2. Therefore, the terminal can also assume that this value corresponds to CSI-RS 1, which represents the time delay and / or frequency domain offset between CSI-RS 1 and CSI-RS 2. Therefore, the terminal side can perform pre-compensation of the time delay and / or frequency offset information according to ΔD1=T1-T2 and ΔF1=F1-F2 when receiving CSI-RS 1. Thus, the time delay and / or frequency offset information of CSI-RS 1 and CSI-RS 2 are synchronized.

[0242] When M=2X+1, M-1 of the M first CSI-RS resources correspond to the first M-1 of the X time delay and / or frequency offset information.

[0243] The second CSI-RS resource to the Mth CSI-RS resource correspond to the first M-1 of the X time delay and / or frequency offset information.

[0244] FIG. 9e is another schematic diagram of the correspondence between the first CSI-RS resource and the second CSI according to an embodiment of the present application. As shown in FIG. 9e, since ΔD1 and ΔF1 are the difference between TRS set 2 and TRS set 1, the terminal can also assume that the value corresponds to CSI-RS 2, which represents the time delay and / or frequency offset deviation between CSI-RS 2 and CSI-RS 1. Therefore, the terminal side can pre-compensate the time delay and / or frequency offset information when receiving CSI-RS 2 according to ΔD1 = T2-T1 and ΔF1 = F2-F1. Thus, the time delay and / or frequency offset information of CSI-RS 1 and CSI-RS 2 are synchronized.

[0245] When M = 2 < X + 1 = 3, M-1 of the M first CSI-RS resources correspond to M-1 of the X time delay and / or frequency offset information, wherein the M-1 time delay and / or frequency offset information are the first M-1 time delay and / or frequency offset information in the X time delay and / or frequency offset information sorted in ascending (or descending) order.

[0246] In addition to the first CSI-RS 1, the second CSI-RS resource to the Mth CSI-RS resource correspond to the time delay and / or frequency offset value with the largest or smallest time delay and / or frequency offset value among the first M-1 time delay and / or frequency offset values in X, for example, as shown in FIG. 9e, the time delay and / or frequency offset value of DO / FO#1 is the smallest, and CSI-RS 2 corresponds to DO / FO#1 (ΔD1, ΔF1).

[0247] Therefore, the terminal side can pre-compensate the time delay and / or frequency offset information when receiving CSI-RS 2 according to ΔD1 = T2-T1 and ΔF1 = F2-F1. Thus, the time delay and / or frequency offset information of CSI-RS 1 and CSI-RS 2 are synchronized.

[0248] 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 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 description, and the present application is not limited to the above figures.

[0249] The above embodiments only exemplarily illustrate the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0250] According to the above embodiments, the terminal device can obtain the first information including the first reporting information of the first CSI and / or the second reporting information of the second CSI and / or the second information including the first reporting information of the first CSI and / or the third information, since the second reporting information and the third information are both information related to the time delay and / or the frequency offset, the terminal device performs the reporting of the first CSI according to the first information and / or the second information, which can improve the reliability and accuracy of the first CSI, thereby helping to improve the reliability and accuracy of data scheduling, improve the transmission efficiency, enhance the data transmission performance, increase the single user and overall network throughput.

[0251] Embodiments of the second aspect

[0252] Embodiments of the present application provide an information processing device. The device may, for example, 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 repeated.

[0253] FIG. 10 is a schematic diagram of an information processing device according to an embodiment of the present application. As shown in FIG. 10, the information processing device 1000 includes a receiving unit 1001 and a processing unit 1002.

[0254] The receiving unit 1001 receives first information and / or second information from a network device, the first information including first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, and the second information including the first reporting information of the first CSI and / or third information, wherein the first CSI includes CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI includes time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resources, M and N are integers greater than or equal to 1.

[0255] The sending unit 1002 reports the first CSI according to the first information and / or the second information.

[0256] In some embodiments, the first CSI-RS resources and the second CSI-RS resource sets are associated.

[0257] In some embodiments, when M is equal to N, the first CSI-RS resources correspond one-to-one to the second CSI-RS resource sets.

[0258] In some embodiments, when M is not equal to N, the first information further includes first indication information, and the first indication information is used to indicate corresponding information between the first CSI-RS resources and the second CSI-RS resource sets.

[0259] In some embodiments, the first indication information comprises a bitmap, the bitmap has a length of N bits, and includes M bits with a first value; or the first indication information comprises M*log(N) bits.

[0260] In some embodiments, when M is not equal to N, the M first CSI-RS resources correspond to the first M second CSI-RS resource sets in the N second CSI-RS resource sets.

[0261] In some embodiments, when M is not equal to N, the M first CSI-RS resources correspond to the M second CSI-RS resource sets in the N second CSI-RS resource sets, wherein the M second CSI-RS resource sets are the first M second CSI-RS resource sets in the N second CSI-RS resource sets sorted in ascending order of corresponding time delay and / or frequency offset, or the first M second CSI-RS resource sets in the N second CSI-RS resource sets sorted in descending order of corresponding time delay and / or frequency offset.

[0262] In some embodiments, the first CSI-RS resource and the second CSI are associated, and the second CSI comprises time delay and / or frequency offset information associated with X second CSI-RS resource sets in the N second CSI-RS resource sets.

[0263] In some embodiments, when M equals X+1, M-1 first CSI-RS resources in the M first CSI-RS resources correspond to the X time delay and / or frequency offset information.

[0264] In some embodiments, the M-1 first CSI-RS resources are the first CSI-RS resources other than the first CSI-RS resource in the M first CSI-RS resources, or the first CSI-RS resources other than the first CSI-RS resource indicated by the network device in the M first CSI-RS resources.

[0265] In some embodiments, when M is not equal to X+1, the first information further comprises second indication information, and the second indication information is used to indicate the corresponding information between the first CSI-RS resource and the second CSI.

[0266] In some embodiments, the second indication information comprises a bitmap, the bitmap has a length of X bits, and includes M-1 bits with a first value; or the second indication information comprises (M-1)*log(X) bits.

[0267] In some embodiments, when M is not equal to X+1, M-1 of the M first CSI-RS resources correspond to M-1 of the X delay and / or frequency offset information, wherein the M-1 of the delay and / or frequency offset information are: the first M-1 of the X delay and / or frequency offset information sorted in ascending order, or the first M-1 of the X delay and / or frequency offset information sorted in descending order.

[0268] In some embodiments, when M is not equal to X+1, M-1 of the M first CSI-RS resources correspond to M-1 of the X delay and / or frequency offset information, wherein the M-1 of the delay and / or frequency offset information are: the first M-1 of the X delay and / or frequency offset information sorted in ascending order, or the first M-1 of the X delay and / or frequency offset information sorted in descending order.

[0269] In some embodiments, the third information includes M average delay values and / or Doppler shift values, or includes M-1 relative average delay values and / or relative Doppler shift values.

[0270] In some embodiments, when the third information includes M average delay values and / or Doppler shift values, the M average delay values and / or Doppler shift values correspond to the M first CSI-RS resources.

[0271] In some embodiments, when the third information includes M-1 average delay values and / or Doppler shift values, the M-1 average delay values and / or Doppler shift values correspond to M-1 of the M first CSI-RS resources.

[0272] In some embodiments, the third information includes absolute values of delay and / or frequency offset of the first CSI-RS resources.

[0273] In some embodiments, the third information is indicated by at least one of a radio resource control (RRC) message, a medium access control control element (MAC CE), and downlink control information (DCI).

[0274] The above various embodiments are only exemplarily described 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 various embodiments. For example, the above various embodiments can be used alone, or one or more of the above various embodiments can be combined.

[0275] 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 art.

[0276] 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 those skilled in the art should understand that various related technologies such as bus connection can be used. The above components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the present application is not limited thereto.

[0277] According to the above embodiment, the terminal device can obtain the first information including the first reporting information of the first CSI and / or the second reporting information of the second CSI and / or the second information including the first reporting information of the first CSI and / or the third information, since the second reporting information and the third information are both information related to the time delay and / or the frequency offset, the terminal device reports the first CSI according to the first information and / or the second information, which can improve the reliability and accuracy of the first CSI, thereby helping to improve the reliability and accuracy of data scheduling, improve transmission efficiency, enhance data transmission performance, and increase single-user and network overall throughput.

[0278] Embodiments of the third aspect

[0279] 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.

[0280] FIG. 11 is a schematic diagram of an information processing method according to an embodiment of the present application. As shown in FIG. 11, the method includes:

[0281] 1101, the network device sends first information and / or second information to the terminal device; and

[0282] 1102, the network device receives the first CSI reported by the terminal device.

[0283] The first information includes first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, the first CSI includes CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI includes time delay and / or frequency offset information based on N second CSI-RS resource sets, and M and N are integers greater than or equal to 1.

[0284] The second information includes first reporting information of the first CSI and / or third information, the first CSI includes CSI based on M first CSI-RS resources for channel measurement, the third information is used for indicating time delay and / or frequency offset information of the first CSI-RS resources, and M is an integer greater than or equal to 1.

[0285] In some embodiments, the first CSI-RS resource and the second CSI-RS resource set are associated.

[0286] In some embodiments, when M is equal to N, the first CSI-RS resource and the second CSI-RS resource set are one-to-one corresponding.

[0287] In some embodiments, when M is not equal to N, the first information further includes first indication information, and the first indication information is used for indicating corresponding information between the first CSI-RS resource and the second CSI-RS resource set.

[0288] In some embodiments, the first indication information includes a bit bitmap, the bit bitmap has a length of N bits, and includes M bits with a first value; or the first indication information includes M*log(N) bits.

[0289] In some embodiments, when M is not equal to N, M first CSI-RS resources and the first M second CSI-RS resources in the N second CSI-RS resource set are one-to-one corresponding.

[0290] In some embodiments, when M is not equal to N, M first CSI-RS resources and M second CSI-RS resources in the N second CSI-RS resource set are one-to-one corresponding, and the M second CSI-RS resources are as follows: the first M second CSI-RS resources in the N second CSI-RS resource set sorted in ascending order of corresponding time delay and / or frequency offset, or the first M second CSI-RS resources in the N second CSI-RS resource set sorted in descending order of corresponding time delay and / or frequency offset.

[0291] In some embodiments, the first CSI-RS resource and the second CSI are associated, and the second CSI includes time delay and / or frequency offset information associated with X second CSI-RS resource sets in the N second CSI-RS resource set.

[0292] In some embodiments, when M is equal to X+1, M-1 first CSI-RS resources in the M first CSI-RS resources and X time delay and / or frequency offset information are one-to-one corresponding.

[0293] In some embodiments, the M-1 first CSI-RS resources are the first CSI-RS resources other than the 1st first CSI-RS resource in the M first CSI-RS resources, or the first CSI-RS resources other than the 1st first CSI-RS resource in the M first CSI-RS resources indicated by the network device.

[0294] In some embodiments, when M is not equal to X+1, the first information further comprises second indication information, the second indication information being used to indicate corresponding information between the first CSI-RS resources and the second CSI.

[0295] In some embodiments, the second indication information comprises a bit map, the bit map having a length of X bits, wherein M-1 bits have a first value; or the second indication information comprises (M-1)*log(X) bits.

[0296] In some embodiments, when M is not equal to X+1, M-1 first CSI-RS resources in the M first CSI-RS resources correspond to the first M-1 time delays and / or frequency offsets in the X time delays and / or frequency offsets.

[0297] In some embodiments, when M is not equal to X+1, M-1 first CSI-RS resources in the M first CSI-RS resources correspond to the first M-1 time delays and / or frequency offsets in the X time delays and / or frequency offsets, wherein the M-1 time delays and / or frequency offsets are: the first M-1 time delays and / or frequency offsets in the X time delays and / or frequency offsets sorted in ascending order, or the first M-1 time delays and / or frequency offsets in the X time delays and / or frequency offsets sorted in descending order.

[0298] In some embodiments, the third information comprises M average time delay values and / or Doppler shift values, or M-1 relative average time delay values and / or relative Doppler shift values.

[0299] In some embodiments, when the third information comprises M average time delay values and / or Doppler shift values, the M average time delay values and / or Doppler shift values correspond to the M first CSI-RS resources.

[0300] In some embodiments, when the third information comprises M-1 average time delay values and / or Doppler shift values, the M-1 average time delay values and / or Doppler shift values correspond to M-1 first CSI-RS resources in the M first CSI-RS resources.

[0301] In some embodiments, the third information comprises a time delay and / or frequency offset absolute value of the first CSI-RS resource.

[0302] In some embodiments, the third information is indicated by at least one of a radio resource control (RRC) message, a medium access control control element (MAC CE) and downlink control information (DCI).

[0303] 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 various operations can be appropriately adjusted, and in addition, some operations can be added or some operations can be removed. Those skilled in the art can make appropriate modifications based on the above description, and the present application is not limited to the above figures.

[0304] The above various embodiments only exemplarily illustrate the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can be made on the basis of the above various embodiments. For example, the above various embodiments can be used alone, or one or more of the above various embodiments can be combined.

[0305] According to the above embodiments, the terminal device can acquire the first information comprising the first reporting information of the first CSI and / or the second reporting information of the second CSI and / or the second information comprising the first reporting information of the first CSI and / or the third information. Since the second reporting information and the third information are both information related to time delay and / or frequency offset, the terminal device reports the first CSI according to the first information and / or the second information, which can improve the reliability and accuracy of the first CSI, thereby helping to improve the reliability and accuracy of data scheduling, improve transmission efficiency, enhance data transmission performance, and increase single user and overall network throughput.

[0306] Embodiments of the fourth aspect

[0307] The embodiments of the present application provide an information processing apparatus. The apparatus 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.

[0308] FIG. 12 is a schematic diagram of an information processing apparatus according to an embodiment of the present application. As shown in FIG. 12, the information processing apparatus 1200 comprises a sending unit 1201 and a receiving unit 1202.

[0309] The sending unit 1201 sends first information and / or second information to a terminal device, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, and the second information comprising the first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used for indicating time delay and / or frequency offset information of the first CSI-RS resources, M and N being integers greater than or equal to 1.

[0310] The receiving unit 1202 receives the first CSI reported by the terminal device.

[0311] In some embodiments, the first CSI-RS resources and the second CSI-RS resource sets are associated.

[0312] In some embodiments, when M is equal to N, the first CSI-RS resources correspond to the second CSI-RS resource sets one by one.

[0313] In some embodiments, when M is not equal to N, the first information further comprises first indication information used for indicating correspondence information between the first CSI-RS resources and the second CSI-RS resource sets.

[0314] In some embodiments, the first indication information comprises a bit map, the bit map having a length of N bits and comprising M bits with a first value; or the first indication information comprises M*log(N) bits.

[0315] In some embodiments, when M is not equal to N, M first CSI-RS resources correspond to the first M second CSI-RS resource sets in N second CSI-RS resource sets one by one.

[0316] In some embodiments, when M is not equal to N, M first CSI-RS resources correspond to M second CSI-RS resource sets in N second CSI-RS resource sets one by one, wherein the M second CSI-RS resource sets are as follows: the first M second CSI-RS resource sets in the N second CSI-RS resource sets sorted in ascending order of corresponding time delay and / or frequency offset, or the first M second CSI-RS resource sets in the N second CSI-RS resource sets sorted in descending order of corresponding time delay and / or frequency offset.

[0317] In some embodiments, the first CSI-RS resource and the second CSI are associated, and the second CSI includes delay and / or frequency offset information associated with X of the N second CSI-RS resource sets.

[0318] In some embodiments, when M = X+1, M-1 of the M first CSI-RS resources correspond to X of the delay and / or frequency offset information.

[0319] In some embodiments, the M-1 first CSI-RS resources are the first CSI-RS resources other than the first CSI-RS resource in the M first CSI-RS resources, or the first CSI-RS resources other than the first CSI-RS resource indicated by the network device in the M first CSI-RS resources.

[0320] In some embodiments, when M is not equal to X+1, the first information further includes second indication information, and the second indication information is used to indicate the corresponding information between the first CSI-RS resource and the second CSI.

[0321] In some embodiments, the second indication information includes a bit map, and the bit map has a length of X bits, and includes M-1 bits with a first value; or the second indication information includes (M-1)*log(X) bits.

[0322] In some embodiments, when M is not equal to X+1, M-1 of the M first CSI-RS resources correspond to the first M-1 of the X delay and / or frequency offset information.

[0323] In some embodiments, when M is not equal to X+1, M-1 of the M first CSI-RS resources correspond to M-1 of the X delay and / or frequency offset information, wherein the M-1 delay and / or frequency offset information are: the first M-1 delay and / or frequency offset information after the X delay and / or frequency offset information are sorted in ascending order, or the first M-1 delay and / or frequency offset information after the X delay and / or frequency offset information are sorted in descending order.

[0324] In some embodiments, the third information includes M average delay values and / or Doppler shift values, or includes M-1 relative average delay values and / or relative Doppler shift values.

[0325] In some embodiments, when the third information includes M average delay values and / or Doppler shift values, the M average delay values and / or Doppler shift values correspond to the M first CSI-RS resources one by one.

[0326] In some embodiments, when the third information includes M-1 average delay values and / or Doppler shift values, the M-1 average delay values and / or Doppler shift values correspond to M-1 first CSI-RS resources of the M first CSI-RS resources one by one.

[0327] In some embodiments, the third information includes absolute values of delay and / or frequency offset of the first CSI-RS resources.

[0328] In some embodiments, the third information is indicated by at least one of a radio resource control (RRC) message, a medium access control control element (MAC CE), and downlink control information (DCI).

[0329] The above embodiments are only exemplary, and the present application is not limited thereto. One or more of the above embodiments can be combined.

[0330] 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.

[0331] In addition, for the sake of simplicity, only the connection relationship or signal path between the components or modules is shown in the drawings, but those skilled in the art should understand that various related technologies such as bus connection can be used. The above components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the present application is not limited thereto.

[0332] According to the above embodiments, the terminal device can obtain the first information including the first reported information of the first CSI and / or the second reported information of the second CSI and / or the second information including the first reported information of the first CSI and / or the third information. Since the second reported information and the third information are both information related to delay and / or frequency offset, the terminal device reports the first CSI according to the first information and / or the second information, which can improve the reliability and accuracy of the first CSI, thereby helping to improve the reliability and accuracy of data scheduling, improve transmission efficiency, enhance data transmission performance, and increase single-user and network overall throughput.

[0333] Embodiments of the fifth aspect

[0334] Embodiments of the fifth aspect

[0335] In some embodiments, the communication system 100 can at least include a network device and a terminal device.

[0336] The network device sends first information and / or second information to the terminal device, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, and the second information comprising the first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resources, M and N are integers greater than or equal to 1.

[0337] The terminal device reports the first CSI according to the first information or the second information.

[0338] 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.

[0339] FIG. 12 is a schematic diagram of a network device according to an embodiment of the present application. As shown in FIG. 12, the network device 1200 can include a processor 1210 (such as a central processing unit CPU) and a memory 1220, wherein the memory 1220 is coupled to the processor 1210. The memory 1220 can store various data, and further store a program 1230 for information processing, and execute the program 1230 under the control of the processor 1210.

[0340] For example, the processor 1210 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 1210 can be configured to perform the following control: the network device sends first information and / or second information to a terminal device, the first information includes first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, and the second information includes first reporting information of the first CSI and / or third information, wherein the first CSI includes CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI includes time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resource, M and N are integers greater than or equal to 1; and the network device receives the first CSI reported by the terminal device.

[0341] In addition, as shown in FIG. 13, the network device 1300 can further include a transceiver 1340, an antenna 1350, and the like; wherein the functions of the above components are similar to those of the related art, which will not be described here. It is worth noting that the network device 1300 does not necessarily include all the components shown in FIG. 13; in addition, the network device 1300 can also include components not shown in FIG. 13, which can be referred to the related art.

[0342] 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.

[0343] FIG. 14 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 14, the terminal device 1400 can include a processor 1410 and a memory 1420; the memory 1420 stores data and programs and is coupled to the processor 1410. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to implement telecommunication functions or other functions.

[0344] For example, the processor 1410 can be configured to execute programs to implement the method according to the embodiments of the first aspect. For example, the processor 1410 can be configured to perform the following control: the terminal device receives first information and / or second information from a network device, the first information includes first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, the second information includes first reporting information of the first CSI and / or third information, wherein the first CSI includes CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI includes time delay and / or frequency offset information based on N second CSI-RS resource sets, the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resource, M and N are integers greater than or equal to 1; and the terminal device reports the first CSI according to the first information and / or the second information.

[0345] As shown in FIG. 14, the terminal device 1400 can further include a communication module 1430, an input unit 1440, a display 1450, and a power supply 1460. 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 1400 does not necessarily include all the components shown in FIG. 14, and the above components are not essential; in addition, the terminal device 1400 can include components not shown in FIG. 14, and can refer to the related art.

[0346] 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 according to the embodiments of the first aspect.

[0347] The embodiments of the present application further provide a storage medium storing a computer program, which causes a terminal device to perform the method according to the embodiments of the first aspect.

[0348] The embodiments of the present application further provide a computer program product, which contains at least a computer program, and the computer program is executed by a processor to cause a terminal device to perform the method according to the embodiments of the first aspect.

[0349] 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 according to the embodiments of the third aspect.

[0350] The embodiments of the present application further provide a storage medium storing a computer program, which causes a network device to perform the method according to the embodiments of the third aspect.

[0351] The embodiment of the present application further provides a computer program product comprising at least a computer program, which, when executed by a processor, causes a network device to perform the method described in the embodiment of the third aspect.

[0352] The apparatus and method described above can be implemented by hardware, or by hardware in combination with software. The present application relates to a computer readable program, which, when executed by a logic component, enables the logic component to implement the apparatus or constituent components described above, or to implement the various methods or steps described above. 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, and the like.

[0353] The method / apparatus described in combination with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional blocks shown in the figures and / or a combination of one or more of the functional blocks can correspond to a software module of a computer program flow, or to a hardware module. The software modules can correspond to the respective steps shown in the figures. The hardware modules can be implemented by, for example, fixing the software modules with a field programmable gate array (FPGA).

[0354] The software modules can be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile disk, a CD-ROM, or any other form of storage medium known in the art. A 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 a 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.

[0355] One or more of the functional blocks described in 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, discrete gate or transistor logic device, discrete hardware component, or any appropriate combination thereof, for performing the functions described in this disclosure. One or more of the functional blocks described in 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 conjunction with a DSP core, or any other such configuration.

[0356] The present disclosure has been described above with the attachment of specific embodiments, but it should be clear to those skilled in the art that these descriptions are exemplary and are not a limitation on the scope of protection of the present disclosure. Those skilled in the art can make various modifications and changes to the present disclosure according to the spirit and principles of the present disclosure, and these modifications and changes are also within the scope of the present disclosure.

[0357] In connection with the embodiments including the above embodiments, the following notes are also disclosed:

[0358] 1. An information processing method applied to a terminal device, the method comprising:

[0359] The terminal device receives first information and / or second information from a network device, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, and the second information comprising first reporting information of first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resources, M and N are integers greater than or equal to 1; and

[0360] The terminal device reports the first CSI according to the first information and / or the second information.

[0361] 2. An information processing method applied to a network device, the method comprising:

[0362] The network device sends first information and / or second information to the terminal device, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, and the second information comprising the first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resources, M and N are integers greater than or equal to 1; and

[0363] The network device receives the first CSI reported by the terminal device.

[0364] 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 clause 1.

[0365] 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 clause 2.

[0366] 5. A computer program product comprising at least a computer program, the computer program being executed by a processor to enable a terminal device to implement the method of clause 1.

[0367] 6. A computer program product comprising at least a computer program, the computer program being executed by a processor to enable a network device to implement the method of clause 2.

Claims

1.An information processing apparatus configured to operate at a terminal device, the apparatus comprising: a receiving unit configured to receive first information and / or second information from a network device, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, the second information comprising first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resources, M and N are integers greater than or equal to 1; and a sending unit configured to report the first CSI according to the first information and / or the second information. 2.The apparatus of claim 1, wherein the first CSI-RS resources and the second CSI-RS resource sets are associated. 3.The apparatus of claim 2, wherein when M is equal to N, the first CSI-RS resources and the second CSI-RS resource sets correspond to each other one by one. 4.The apparatus of claim 2, wherein when M is not equal to N, the first information further comprises first indication information, the first indication information being used to indicate corresponding information between the first CSI-RS resources and the second CSI-RS resource sets. 5.The apparatus of claim 4, wherein the first indication information comprises a bit map, the bit map having a length of N bits and comprising M bits with a first value; or the first indication information comprises M*log(N) bits. 6.The apparatus of claim 2, wherein when M is not equal to N, M first CSI-RS resources correspond to the first M second CSI-RS resource sets in the N second CSI-RS resource sets one by one. 7.The apparatus of claim 2, wherein when M is not equal to N, M first CSI-RS resources correspond to the M second CSI-RS resource sets in the N second CSI-RS resource sets one by one, wherein the M second CSI-RS resource sets are as follows: the first M second CSI-RS resource sets in the N second CSI-RS resource sets sorted in ascending order of corresponding time delay and / or frequency offset, or the first M second CSI-RS resource sets in the N second CSI-RS resource sets sorted in descending order of corresponding time delay and / or frequency offset. 8.The apparatus of claim 1, wherein the first CSI-RS resources and the second CSI are associated, and the second CSI comprises time delay and / or frequency offset information associated with X second CSI-RS resource sets in the N second CSI-RS resource sets. 9.The apparatus of claim 8, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ When M=X+1, M-1 of the M first CSI-RS resources correspond to X of the time delay and / or frequency offset information one by one. 10.The apparatus of claim 9, wherein, M-1 of the first CSI-RS resources are the first CSI-RS resources other than the first CSI-RS of the first one of the M first CSI-RS resources, or the first CSI-RS resources other than the first CSI-RS indicated by the network device. 11.The apparatus of claim 8, wherein, When M≠X+1, the first information further comprises second indication information, the second indication information being used to indicate the corresponding information between the first CSI-RS resources and the second CSI. 12.The apparatus of claim 11, wherein, The second indication information comprises a bit map, the bit map having a length of X bits, wherein M-1 bits have a first value; or The second indication information comprises (M-1) *log (X) bits. 13.The apparatus of claim 8, wherein, When M≠X+1, M-1 of the M first CSI-RS resources correspond to the first M-1 of the X time delay and / or frequency offset information. 14.The apparatus of claim 8, wherein, When M≠X+1, M-1 of the M first CSI-RS resources correspond to M-1 of the X time delay and / or frequency offset information, wherein the M-1 of the time delay and / or frequency offset information are: the first M-1 of the X time delay and / or frequency offset information sorted in ascending order; or the first M-1 of the X time delay and / or frequency offset information sorted in descending order. 15.The apparatus of claim 1, wherein, The third information comprises M average time delay values and / or Doppler shift values, or M-1 relative average time delay values and / or relative Doppler shift values. 16.The apparatus of claim 15, wherein, When the third information comprises M average time delay values and / or Doppler shift values, the M average time delay values and / or Doppler shift values correspond to the M first CSI-RS resources one by one. 17.The apparatus of claim 15, wherein, When the third information comprises M-1 average time delay values and / or Doppler shift values, the M-1 average time delay values and / or Doppler shift values correspond to M-1 of the M first CSI-RS resources one by one. 18.The apparatus of claim 1, wherein, The third information comprises absolute values of time delay and / or frequency offset of the first CSI-RS resources; or The third information is indicated by at least one of a radio resource control (RRC) message, a medium access control control element (MAC CE), and downlink control information (DCI). 19.An information processing apparatus configured to operate on a network device, the apparatus comprising: a sending unit configured to send, to a terminal device, first information and / or second information, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, and the second information comprising the first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resources, M and N being integers greater than or equal to 1; and a receiving unit configured to receive the first CSI reported by the terminal device. 20.A communication system comprising a network device and a terminal device, wherein the network device sends, to the terminal device, first information and / or second information, the first information comprising first reporting information of first channel state information (CSI) and / or second reporting information of second CSI, and the second information comprising the first reporting information of the first CSI and / or third information, wherein the first CSI comprises CSI based on M first channel state information reference signal (CSI-RS) resources for channel measurement, the second CSI comprises time delay and / or frequency offset information based on N second CSI-RS resource sets, and the third information is used to indicate time delay and / or frequency offset information of the first CSI-RS resources, M and N being integers greater than or equal to 1; the terminal device reports the first CSI according to the first information or the second information.

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