Multi-cell CSI reporting method and device, terminal, storage medium and program product

Abstract

A multi-cell channel state information reporting method, device, terminal, storage medium and program product, the method comprising: reporting a plurality of pieces of channel state information (CSI) through a target cell when a first condition is satisfied; the first condition comprises at least one of the following items: reporting resources of channel state information (CSI) of a plurality of first cells are overlapped in a time domain; the CSI reporting resources of the plurality of first cells satisfy a preset time domain range. According to the multi-cell channel state information reporting method provided by the embodiment of the invention, under the condition that the CSI reporting resources of the plurality of first cells are overlapped in the time domain or the CSI reporting resources of the plurality of first cells meet the preset time domain range, the plurality of pieces of CSI are reported through the target cell, so that the basic power consumption of the CSI reporting of the plurality of cells can be reduced, and the user experience is improved. And the robustness and the reliability of CSI reporting are improved. According to the invention, the problem that the timeliness and robustness of the CSI feedback are poor because the CSI feedback or the measurement feedback is only carried out on respective cells is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mobile communication, and in particular to a CSI reporting method and device for multiple cells, a terminal, a storage medium and a program product. BACKGROUND

[0002] The transmission mode of scheduling multiple carriers (cells) is introduced through down control information (DCI), which reduces the overhead of the physical downlink control channel (PUCCH) and improves the transmission efficiency of the carrier.

[0003] However, the existing channel state information (CSI) feedback or measurement feedback is only performed on the respective carriers. For example, the periodic feedback is performed periodically on the physical uplink control channel (PUCCH) of the corresponding carrier; for semi-persistent or aperiodic feedback, the CSI feedback is performed on the specified resource, such as the physical uplink shared channel (PUSCH), which results in poor timeliness and robustness of the CSI feedback. SUMMARY

[0004] At least one embodiment of the present application provides a CSI reporting method and device for multiple cells, a terminal, a storage medium and a program product, which are used to solve the problem that the existing CSI feedback or measurement feedback is only performed on the respective cells, resulting in poor timeliness and robustness of the CSI feedback.

[0005] To solve the above technical problems, the present application is implemented as follows:

[0006] In a first aspect, the present application provides a CSI reporting method for multiple cells, comprising:

[0007] In the case of meeting the first condition, multiple channel state information (CSI) is reported through a target cell;

[0008] The first condition includes at least one of the following:

[0009] The reporting resources of the channel state information (CSI) of the multiple first cells overlap in the time domain;

[0010] The reporting resources of the CSI of the multiple first cells meet the preset time domain range;

[0011] The channel state information (CSI) includes multiple CSI of the first cell or multiple CSI of the first cell.

[0012] The target cell includes one of the first cell, a second cell different from the first cell, a cell based on configuration, or a cell based on indication.

[0013] Further, the method further includes:

[0014] reporting the multiple CSI through the target cell by scheduling or triggering of one or more downlink control information; or

[0015] reporting the multiple CSI through the target cell based on configuration or indication.

[0016] Further, the method further includes at least one of:

[0017] determining the target cell according to configuration;

[0018] determining the target cell according to an ID of a serving cell in the configuration information;

[0019] determining the target cell according to a serving cell index in the configuration information;

[0020] determining the target cell according to a reporting ID of the CSI;

[0021] determining the target cell according to a reporting frequency of the cell;

[0022] determining the target cell according to a reporting period of the cell.

[0023] Further, a reporting order of the multiple CSI is determined according to at least one of:

[0024] a serving cell index corresponding to the first cell;

[0025] a reporting ID of the CSI;

[0026] a configuration ID of the CSI reporting;

[0027] a bitmap corresponding to the multiple first cells;

[0028] ID information of the first cell;

[0029] index information of the first cell in a serving cell set;

[0030] a cell ID associated with the CSI information;

[0031] a cell ID carried in the CSI information.

[0032] Further, the CSI corresponding to the target cell or the reporting sequence of the CSI information is arranged at the first position.

[0033] Further, the method further comprises:

[0034] determining a first uplink transmission resource according to a first time;

[0035] reporting the CSI through the first uplink transmission resource;

[0036] wherein the first uplink transmission resource and the reception or measurement of the reference signal satisfy the first time, or the first uplink transmission resource and the reference resource satisfy the first time.

[0037] The first time is the transmission time, processing time, processing delay or configured time offset of the configured reference signal or synchronization signal.

[0038] Further, the method further comprises:

[0039] in the case that there is no reporting resource in the first time slot of the target cell, determining a second time slot according to the uplink transmission resource of a third cell;

[0040] reporting the multiple CSI in the second time slot;

[0041] wherein the first time slot is the time slot corresponding to the multiple CSI reporting resources, and the third cell is a cell different from the target cell in the first cell.

[0042] The uplink transmission resource is the union set of transmission parameters of the third cell, or the uplink transmission resource is the configured transmission parameter of the third cell; the transmission parameter includes period and / or offset.

[0043] Further, the reporting multiple CSI through the target cell comprises at least one of the following:

[0044] for a fourth cell in the first cell which reports reference signal received power and / or signal to interference plus noise ratio, differentially reporting the reference signal received power or the signal to interference plus noise ratio in the target cell;

[0045] for a fifth cell in the first cell which reports precoding matrix indication, reporting the channel state information resource indication and the precoding matrix indication of the fifth cell through the target cell, and / or, containing cell indication or indicating according to cell ID sequence;

[0046] In a case that the first condition is met, the reporting module reports, through a target cell, a plurality of channel state information (CSI) of a plurality of first cells.

[0047] Further, in a case that reporting resources of the plurality of first cells overlap in a time domain, the reporting module reports, through the target cell, a plurality of CSI, including:

[0048] In a case that uplink control channels of the plurality of first cells overlap with an uplink shared channel, the reporting module reports, through the target cell, the plurality of CSI via the uplink shared channel.

[0049] Further, in a case that CSI reporting of the plurality of first cells is periodic reporting and subcarrier spacings of the plurality of first cells are the same, the plurality of first cells are configured with the same reporting period and offset.

[0050] Alternatively, in a case that CSI reporting of the plurality of first cells is periodic reporting and subcarrier spacings of the plurality of first cells are different, the plurality of first cells are configured with different reporting periods and offsets.

[0051] In a second aspect, an embodiment of the present application provides a channel state information reporting device of a plurality of cells, including:

[0052] A reporting module configured to report, through a target cell, a plurality of channel state information (CSI) of a plurality of first cells in a case that a first condition is met.

[0053] The first condition includes at least one of the following:

[0054] Reporting resources of the plurality of first cells overlap in a time domain.

[0055] The reporting resources of the plurality of first cells meet a preset time domain range.

[0056] The CSI includes a plurality of CSI of one of the first cells or CSI of the plurality of first cells.

[0057] The target cell includes one of the first cells, a second cell different from the first cells, a cell based on configuration, or a cell based on indication.

[0058] In a third aspect, an embodiment of the present application provides a terminal, including a transceiver, and the terminal is configured to:

[0059] The transceiver is configured to report, in a case where a first condition is met, a plurality of channel state information (CSI) on a target cell.

[0060] The first condition comprises at least one of:

[0061] Reporting resources of channel state information (CSI) of a plurality of first cells overlap in a time domain.

[0062] Reporting resources of CSI of the plurality of first cells meet a preset time domain range.

[0063] The channel state information (CSI) comprises a plurality of CSI of one of the first cells or CSI of the plurality of first cells.

[0064] The target cell comprises one of the first cells, a second cell different from the first cells, a cell based on configuration, or a cell based on indication.

[0065] In a fourth aspect, an embodiment of the present application provides a terminal, comprising a processor, a memory, and a program stored in the memory and executable on the processor, and when the program is executed by the processor, the steps of the method in the first aspect are implemented.

[0066] In a fifth aspect, an embodiment of the present application provides a computer readable storage medium, and the computer readable storage medium stores a program, and when the program is executed by a processor, the steps of the method are implemented.

[0067] In a sixth aspect, an embodiment of the present application provides a computer program product, comprising computer instructions, and when the computer instructions are executed by a processor, the steps of the method in the first aspect are implemented.

[0068] Compared with the prior art, the multi-cell channel state information reporting method, device, terminal, storage medium, and program product provided by the embodiment of the present application report a plurality of channel state information (CSI) on a target cell in a case where reporting resources of channel state information (CSI) of a plurality of first cells overlap in a time domain or reporting resources of CSI of the plurality of first cells meet a preset time domain range. By reporting a plurality of CSI on the target cell, the basic power consumption of CSI reporting of multiple cells can be reduced, and the robustness and reliability of CSI reporting are improved. The problem that the time effectiveness and robustness of CSI feedback are poor because CSI feedback or measurement feedback are performed only on respective cells in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0069] Various other advantages and benefits will become apparent to those of ordinary skill in the art, upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are not intended to be a limitation on the scope of the application. Moreover, in the drawings, like reference numerals refer to similar components, and:

[0070] Figure 1 An application scenario of an embodiment of the present application;

[0071] Figure 2 One of the schematic diagrams of scheduling multiple cells by one DCI in the prior art;

[0072] Figure 3 Another of the schematic diagrams of scheduling multiple cells by one DCI in the prior art;

[0073] Figure 4 A flowchart of a channel state information reporting method of a multi-carrier of an embodiment of the present application;

[0074] Figure 5 A schematic diagram of a TDRA table of an embodiment of the present application;

[0075] Figure 6 A schematic diagram of a target cell determination method of an embodiment of the present application;

[0076] Figure 7 A schematic diagram of a target cell determination method of another embodiment of the present application;

[0077] Figure 8 A schematic diagram of a first time determination method of an embodiment of the present application;

[0078] Figure 9 A schematic diagram of a first time determination method of another embodiment of the present application;

[0079] Figure 10 A schematic diagram of a first time determination method of yet another embodiment of the present application;

[0080] Figure 11 A schematic diagram of a target cell determination method of yet another embodiment of the present application;

[0081] Figure 12 A structural schematic diagram of a channel state information reporting device of a multi-carrier of an embodiment of the present application;

[0082] Figure 13 A structural schematic diagram of a terminal of an embodiment of the present application;

[0083] Figure 14 A structural schematic diagram of a terminal of another embodiment of the present application. DETAILED DESCRIPTION

[0084] Exemplary embodiments of the present application will be described more fully hereinafter with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is to be understood that the present application can be embodied in various forms without being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present application to those skilled in the art.

[0085] The terms "first", "second", and the like, as used in the description and the claims of this application, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of the terms so construed can interchange depending upon the context in which it is used. Also, the use of the terms "including", "comprising", "having" and the like, are meant to encompass the terms "consisting of" and / or "consisting essentially of" to the extent not already expressly described herein. The terms "and / or" between list items in the description and the claims are to be construed as "and / or" unless otherwise indicated. The description and the claims herein using the term "comprising", "having", "containing" and "including" to describe various constituents, elements and / or components are intended to provide support for modified or alternative embodiments of the present application. Any processes, such as methods, procedures, techniques, steps, and the like described herein are intended to be interpreted broadly. The processes can include any type of process, instance, implementation, and / or execution of a process, whether or not such processes are described herein. The description and the claims herein using the term "comprising", "having", "containing" and "including" to describe various constituents, elements and / or components are intended to provide support for modified or alternative embodiments of the present application. Any processes, such as methods, procedures, techniques, steps, and the like described herein are intended to be interpreted broadly. The processes can include any type of process, instance, implementation, and / or execution of a process, whether or not such processes are described herein.

[0086] The technology described herein is not limited to NR systems and Long Time Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used for various wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. UTRA includes Wideband-CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement a radio technology such as Global System for Mobile Communications (GSM). An OFDMA system can implement a radio technology such as Ultra Mobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.21 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS). LTE and LTE-Advanced (e.g., LTE-A) are new releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2).The techniques described herein can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies. The description above, however, describes techniques in one exemplary context of NR systems, and uses NR terminology in much of the description above, although the techniques can be applied in other contexts than NR systems.

[0087] The following description provides examples, and is not limiting of the scope, applicability, or configuration set forth in the claims. Changes can be made in the function and arrangement of elements discussed without departing from the scope and spirit of aspects of the disclosure. Various examples can omit, substitute, or add various procedures or components as appropriate. For instance, the methods described can be performed in an order different from that described, and other steps can be added, omitted, or combined. Also, features described with respect to certain examples can be combined in other examples.

[0088] See Figure 1 , Figure 1 A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 can also be referred to as a user terminal or a user equipment (UE), and the terminal 11 can be a terminal-side device such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a mobile Internet device (MID), a wearable device, or a vehicle-mounted device, for example. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network device 12 can be a base station and / or a core network element. The base station can be a base station of 5G and later versions (e.g., gNB, 5G NR NB, etc.), or a base station in other communication systems (e.g., eNB, WLAN access point, or other access points, etc.). The base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, or some other suitable terminology in the art, provided that the same technical effect is achieved, and the base station is not limited to a specific technical term. It should be noted that a base station in an NR system is taken as an example in the embodiments of the present application, but the specific type of the base station is not limited.

[0089] The base stations can communicate with the terminals 11 under the control of a base station controller, which can be part of the core network or of certain base stations in various examples. Some of the base stations can communicate control information or user data with the core network through backhaul links. In some examples, some of these base stations can communicate, either directly or indirectly, with each other over the backhaul links, which can be wired or wireless communication links. The wireless communication system can support operation on multiple carriers (waveform signals of different frequencies). Multi-carrier transmitters can transmit modulated signals simultaneously on the multiple carriers. For example, each communication link can be a multi-carrier signal modulated according to the various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (e.g., reference signals, control channels, etc.), overhead information, data, etc.

[0090] The base stations can wirelessly communicate with the terminals 11 via one or more access point antennas. Each base station can provide communication coverage for a respective geographic area. The coverage area of an access point can be divided into sectors making up only a portion of the coverage area. The wireless communication system can include base stations of different types (e.g., macro, micro, or pico base stations). The base stations can utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations can be associated with the same or different access networks or operator deployments. The coverage areas of different base stations, including the coverage areas of base stations of the same or different types, utilizing the same or different radio technologies, or belonging to the same or different access networks, can overlap.

[0091] Communication links in a wireless communication system can include uplinks for carrying Uplink (UL) transmissions (e.g., from a terminal 11 to a network device 12) or downlinks for carrying Downlink (DL) transmissions (e.g., from a network device 12 to a terminal 11). UL transmissions can also be called reverse link transmissions, and DL transmissions can also be called forward link transmissions. Downlink transmissions can be made using a licensed spectrum, an unlicensed spectrum, or both. Similarly, uplink transmissions can be made using a licensed spectrum, an unlicensed spectrum, or both.

[0092] In the prior art, a Downlink Control Information (DCI) scheduling is introduced, the main goal of which is to reduce the overhead of Physical Downlink Control Channel (PDCCH) and improve the transmission efficiency of multiple carriers. As shown in FIG. 1, the Physical Downlink Shared Channel (PDSCH) of multiple carriers is scheduled on the following carriers, or as shown in FIG. 2, the Physical Downlink Shared Channel (PDSCH) of multiple carriers is scheduled on the following carriers. Figure 2 Figure 3 ​The transmission of a physical uplink shared channel (PUSCH) is shown. Please refer to Figure 4 The multi-cell channel state information reporting method provided by the embodiment of the application comprises the following steps when applied to the terminal side:

[0093] In step 401, the multiple channel state information (CSI) is reported through a target cell when a first condition is met.

[0094] The first condition comprises at least one of the following:

[0095] The reporting resources of the channel state information (CSI) of the multiple first cells overlap in the time domain.

[0096] The reporting resources of the CSI of the multiple first cells meet a preset time domain range.

[0097] The channel state information (CSI) comprises multiple CSI of one first cell or CSI of multiple first cells.

[0098] The target cell comprises one of the first cells, a second cell different from the first cells, a cell based on configuration or a cell based on indication.

[0099] Optionally, the target cell is a cell for reporting one or more CSI.

[0100] It should be noted that the cell can be one or more carriers corresponding to the cell.

[0101] The CSI of the multiple first cells comprises CSI of one first cell (carrier) or CSI of multiple first cells (carriers).

[0102] In the embodiment of the application, the reporting resource can also be a transmission resource.

[0103] The multiple CSI is reported as report multiple CSI.

[0104] It should be noted that the feedback of channel state information (CSI) can contain these reported quantities such as reference signal received power (RSRP) and signal-to-noise and interference ratio (SINR), and can also contain the feedback of CSI used for assisting scheduling and transmission, such as channel quality indicator (CQI), rank indicator (RI), and precoding matrix indicator (PMI).

[0105] The method for reporting channel state information of multiple cells provided by the embodiment of the application can report multiple CSI through a target cell in the case that the reporting resources of channel state information (CSI) of multiple first cells overlap in the time domain or the reporting resources of CSI of multiple first cells meet a preset time domain range. By reporting multiple CSI through the target cell, the basic power consumption of CSI reporting of multiple cells can be reduced, and the robustness and reliability of CSI reporting are improved. The problem that CSI feedback or measurement feedback is only performed in respective cells in the prior art, resulting in poor timeliness and robustness of CSI feedback, is solved.

[0106] Optionally, the method further comprises:

[0107] reporting multiple CSI through the target cell by scheduling or triggering of one or more downlink control information; or

[0108] reporting multiple CSI through the target cell based on configuration or indication.

[0109] Optionally, the method further comprises at least one of the following:

[0110] determining the target cell according to configuration;

[0111] determining the target cell according to the ID of a serving cell in the configuration information;

[0112] determining the target cell according to the serving cell index in the configuration information;

[0113] determining the target cell according to the reporting ID of CSI;

[0114] determining the target cell according to the reporting frequency of a cell;

[0115] According to a reporting period of the cell, the target cell is determined.

[0116] In the embodiment of the application, the target cell is configured by the network device for the terminal.

[0117] In the embodiment of the application, a set of scheduled cells or carriers (Scheduled cell set indicator) is indicated in the downlink control information DCI.

[0118] On the basis of the set of scheduled cells or carriers, a specific cell or carrier scheduled in the set is further indicated; or the number of data blocks in the full data rate access (Full Data Rate Access, FDRA) indication is used to indicate the specific cell or carrier scheduled.

[0119] The indication of the time domain resource is synthesized into a table according to the time domain resource allocation (Time Domain Resource Allocation, TDRA) of the multiple cells or carriers and bandwidth parts (Bandwidth Part, BWP), as shown in the following table. Figure 5 As shown in the following table, multiple cells or carriers CC are indicated by an index index or DCI, or the scheduling time of the downlink or uplink of multiple cells is indicated by an index index or DCI.

[0120] Specifically, the terminal UE determines the table of the corresponding BWP selected in the TDRA table according to the indication of the BWP; or the index is used to indicate the number of rows, indicating the index of the TDRA table selected in each cell in the corresponding cell.

[0121] Finally, the terminal can know that the DCI indication and the scheduled channel are transmitted on which time slot; and since the joint TDRA table corresponds to the table of the TDRA of each cell, the uplink transmission time slot in each cell can also be different.

[0122] The set of scheduled cells or carriers is configured by the radio resource control (Radio Resource Control, RRC).

[0123] In the embodiment of the application, in the case that multiple cells share the same central control node, the channel state information fed back by the UE in a cell can be obtained by the base station or node of other cells; or in the case that multiple cells share a station, the channel state information fed back in any cell can be obtained by the base station and used for transmission of the corresponding cell; and the target cell is determined according to the ID or index of the serving cell in the network configuration information.

[0124] In the embodiment of the present application, in any scenario, the target cell is determined according to the ID, the service cell index or the reporting ID of the CSI in the network configuration information;

[0125] Specifically, the target cell is determined as the cell (carrier) with the smallest ID in the service cells, as shown in Figure 6 As shown in FIG. 1, one or more CSI or CSI information of cell 1 (carrier CC1), cell 2 (carrier CC2), cell 3 (carrier CC3) and cell 4 (carrier CC4) are reported through cell 1 (carrier CC1); or, as shown in FIG. 2, one or more CSI or CSI information of cell 1 (carrier CC1), cell 2 (carrier CC2), cell 3 (carrier CC3) and cell 4 (carrier CC4) are reported through cell 1 (carrier CC1) according to the indication or configuration. Figure 6 As shown in FIG. 1, one or more CSI or CSI information of cell 1 (carrier CC1), cell 2 (carrier CC2), cell 3 (carrier CC3) and cell 4 (carrier CC4) are reported through cell 1 (carrier CC1); or, as shown in FIG. 2, one or more CSI or CSI information of cell 1 (carrier CC1), cell 2 (carrier CC2), cell 3 (carrier CC3) and cell 4 (carrier CC4) are reported through cell 1 (carrier CC1) according to the indication or configuration.

[0126] Specifically, as shown in FIG. 3, cell 2 (carrier CC2) with the highest sending frequency and the smallest ID in the first cell is determined as the target cell, and the CSI of multiple cells or the reporting of multiple CSI is performed. Figure 7 As shown in FIG. 1, one or more CSI or CSI information of cell 1 (carrier CC1), cell 2 (carrier CC2), cell 3 (carrier CC3) and cell 4 (carrier CC4) are reported through cell 1 (carrier CC1); or, as shown in FIG. 2, one or more CSI or CSI information of cell 1 (carrier CC1), cell 2 (carrier CC2), cell 3 (carrier CC3) and cell 4 (carrier CC4) are reported through cell 1 (carrier CC1) according to the indication or configuration.

[0127] In the embodiment of the present application, in the case that the CSI reporting of multiple cells is all PUSCH, the target cell is determined according to the sending time of the reference signal or the synchronization signal block in the multiple cells.

[0128] The method of the embodiment of the present application can report the multiple CSI through the target cell by determining the target cell, thereby avoiding the reporting of each cell, which leads to the equal division of power or the total power exceeding the maximum sending power, and reducing the sending power of each cell. At the same time, concentrating all the power on the target cell can avoid the problem that part of the transmission is discarded due to the priority problem of multiple cells, and the same data volume is sent on one cell, which has a higher transmission efficiency than sending on multiple cells.

[0129] Optionally, selecting a carrier with better propagation characteristics for sending can obtain better energy consumption effect, such as lower sending power due to lower frequency, thereby reducing the energy consumption of the terminal.

[0130] In the actual application or deployment process, the transmission carrier or cell can be selected or configured, so as to improve the robustness or reliability of the transmission, and the time efficiency of the uplink transmission can be improved by using different time slot matching of different carriers.

[0131] Optionally, the reporting order of the plurality of CSIs is determined according to at least one of the following:

[0132] The service cell index corresponding to the first cell;

[0133] The reporting ID of the CSI;

[0134] The configuration ID of the CSI reporting;

[0135] The bitmap corresponding to the plurality of first cells;

[0136] The ID information of the first cell;

[0137] The index information of the first cell in the service cell set;

[0138] The cell ID related to the CSI information;

[0139] The cell ID carried by the CSI information.

[0140] In the embodiment of the application, the at least one CSI is reported on the target cell as a data packet, but the CSI information of different first cells in the data packet is arranged as a separate data block in a certain order.

[0141] In the embodiment of the application, the data block is the CSI or CSI information of a certain cell, and the data packet is at least one CSI or CSI information.

[0142] In the embodiment of the application, the order of the data block corresponding to the plurality of first cells in the data packet is determined according to the service cell index corresponding to each first cell, the reporting ID of each CSI, the bitmap bitmap corresponding to the plurality of first cells, the ID information of each first cell, the index information of each first cell in the service cell set, or the cell ID carried in the data block.

[0143] In the embodiment of the present application, the order of the data blocks corresponding to the plurality of first cells in the data packet is determined according to a plurality of bitmaps corresponding to the plurality of first cells, for example, if cells 1-5 are configured, then 5 bits of bitmap are used to indicate which cells the CSI contained in this report is from; the bitmap corresponds to the first cell reported one by one; for example, if only the CSI of cells 1, 3 and 5 is reported, then the corresponding bitmap indicates 10101, and after the indication, the CSI of cells 1, 3 and 5 is reported in order.

[0144] The bitmap bitmap matches a set of RRC configured cells or carriers.

[0145] Optionally, the ID information of the serving cell corresponding to each of the first cells is reported first; the first reporting can be that the serving cell ID information is located at the top or front of the reported information.

[0146] The order of the data blocks corresponding to the plurality of first cells in the data packet is determined according to the ID information of each of the first cells.

[0147] In the embodiment of the present application, the order of the data blocks corresponding to the plurality of first cells in the data packet is determined according to the ID information of each of the first cells, and the data blocks in the data packet are arranged in order according to the size of the ID. For example, the ID information of the serving cell is reported first, and the CSI corresponding to cells 1, 2 and 3 is reported in order from small to large; and in the case where the target cell is one of the first cells, the first cell with the largest or smallest cell ID is determined as the target cell.

[0148] In the embodiment of the present application, the order of the data blocks corresponding to the plurality of first cells in the data packet is determined according to the index information of each of the first cells in the serving cell set; for example, the order of the data blocks is determined in the form of {serving cell id / index, CSI information} data; and in the case where the target cell is one of the first cells, the first cell with the most front or most rear index information is determined as the target cell.

[0149] Optionally, the reporting order of the CSI or CSI information corresponding to the target cell is placed first.

[0150] In the embodiment of the present application, in the case where the target cell is one of the first cells and the CSI reporting of the plurality of first cells is all uplink shared channels PUSCH, the CSI or CSI information corresponding to the target cell is reported first.

[0151] In the embodiment of the present application, in the case that the target cell is one of the first cells, firstly, the CSI or CSI information corresponding to the target cell, and the remaining CSI or CSI information corresponding to the first cells are sorted according to the ID or index of the corresponding serving cell.

[0152] Optionally, the method further comprises:

[0153] determining a first uplink transmission resource according to a first time;

[0154] reporting the CSI through the first uplink transmission resource;

[0155] The first uplink transmission resource and the reception or measurement of the reference signal satisfy the first time, or the first uplink transmission resource and the reference signal resource satisfy the first time.

[0156] The first time is the transmission time, processing time, processing delay or configured time offset of the configured reference signal or synchronization signal.

[0157] Optionally, the first uplink transmission resource can be a PUSCH resource and / or a PUCCH resource.

[0158] The first uplink resource can be an uplink time slot, which is used for CSI reporting.

[0159] Optionally, the first time comprises:

[0160] The uplink transmission resource and the received reference signal satisfy the first time; or

[0161] The time difference of the target reference signal measurement is greater than the first time.

[0162] In the embodiment of the present application, in the case that the CSI reporting of the plurality of first cells is all uplink shared channels PUSCH, a first uplink transmission resource is determined according to a first time.

[0163] In the embodiment of the present application, as shown in Figure 8 and Figure 9 For the plurality of first cells, if it can be ensured that the CSI of all the first cells reported by the terminal does not occur update, the time point of the transmission time plus the processing time of the reference signal or synchronization signal block in the radio resource configuration information in the plurality of first cells is earliest as the first time.

[0164] Specifically, as shown in Figure 8As shown, if it can be ensured that the CSI corresponding to the reporting opportunity within the time window (as shown by the dashed line in the figure) is not updated, the CSI in the multiple first cells is transmitted or reported in the earliest uplink resource within the time window, that is, reported on the uplink resource of cell 1 (or CC1, component carrier 1).

[0165] In the embodiment of the application, as shown in the figure, Figure 9 As shown, for the multiple first cells, if it can be ensured that the CSI of all the first cells reported by the terminal is not updated, the CSI information in the multiple first cells is reported or transmitted in the earliest uplink transmission (PUCCH or PUSCH) within the multiple uplink transmissions.

[0166] As shown in the figure, Figure 10 As shown, for the multiple first cells, if the CSI of at least one cell in the multiple first cells reported by the terminal is updated, the time point of the latest transmission time of the reference signal or the synchronization signal block in the radio resource configuration information in the multiple first cells is taken as the first time.

[0167] Specifically, as shown in the figure, Figure 8 As shown, if the earliest uplink resource within the time window (dashed line) cannot guarantee that the CSI corresponding to the reporting time of cell 2, 3, and 4 is not updated, the latest uplink transmission resource within the time window is selected, that is, the uplink resource of cell 3 (carrier 3) is used for reporting.

[0168] As shown in the figure, Figure 10 As shown, for the multiple first cells, if the CSI of at least one cell in the multiple first cells reported by the terminal is updated, the CSI information in the multiple first cells is reported or transmitted in the latest uplink transmission (PUCCH or PUSCH) within the multiple uplink transmissions.

[0169] As shown in the figure, Figure 10 As shown, for the multiple first cells, if the CSI of at least one cell in the multiple first cells reported by the terminal is updated, the CSI information in the multiple first cells is transmitted in the earliest uplink transmission (PUCCH or PUSCH) within the multiple uplink transmissions that satisfies that the CSI of any of the cells is not updated.

[0170] For the multiple first cells, the processing time of each first cell is superimposed to obtain a target processing time; and the first time is a time that satisfies the target processing time.

[0171] Optionally, the method further comprises:

[0172] If there are no reporting resources in the first time slot of the target cell, the second time slot is determined based on the uplink transmission resources of the third cell;

[0173] Report the plurality of CSIs in the second time slot;

[0174] Wherein, the first time slot is the time slot corresponding to the plurality of CSI reported resources, and the third cell is a cell in the first cell that is different from the target cell;

[0175] The uplink transmission resources are the union of the transmission parameters of the third cell, or the uplink transmission resources are the configured transmission parameters of the third cell; the transmission parameters include period and / or offset.

[0176] Optionally, the third cell can be one or more cells.

[0177] The multi-cell channel state information reporting method of this invention, when there is no reporting resource in the first time slot of the target cell, determines a second time slot and reports the multiple CSIs in the second time slot, which can avoid CSI reporting failure;

[0178] like Figure 11 As shown, if there is no reporting resource in the first time slot of the target cell (carrier CC1), the second time slot T is determined according to the uplink transmission resource of the third cell (carrier CC2 or carrier CC4), and uplink transmission PUCCH or PUSCH is performed.

[0179] In this embodiment of the invention, the uplink transmission time slot or opportunity of the third cell is used as the second time slot.

[0180] In this embodiment of the invention, when the terminal reports the plurality of CSIs through the target cell, the terminal reports according to the target period and / or target offset of the plurality of first cells;

[0181] Specifically, the target period is the union of the periods of multiple first cells, and the target offset is the union of the offsets of multiple first cells; or, the target period and the target offset are the period and / or offset configured by the base station.

[0182] Optionally, the method includes:

[0183] The target time-domain resources for reporting the multiple CSIs are determined based on the magnitude of the CSIs reported by the third cell and the target cell; or,

[0184] The target time domain resource is determined based on the reporting time slot of each of the plurality of first cells.

[0185] Optionally, the reporting the CSI of the plurality of cells through the target cell of the plurality of cells comprises at least one of the following:

[0186] For a fourth cell reporting a quantity in the first cell comprising a reference signal received power (RSRP) and / or a signal-to-interference-plus-noise ratio (SINR), the RSRP or the SINR is differentially reported through the target cell.

[0187] For a fifth cell reporting a quantity in the first cell comprising a precoding matrix indicator (PMI), a channel state information resource indicator (CRI) and / or the PMI of the fifth cell is reported through the target cell, and / or, a cell indicator or an indication according to a cell ID sequence is reported.

[0188] For a sixth cell reporting a quantity in the first cell comprising a PMI and having a same CRI and / or PMI as a cell, the CRI and / or PMI of the sixth cell is reported through the target cell, and a corresponding channel quality indicator (CQI) and / or rank indicator (RI) of each of the sixth cells is reported.

[0189] Optionally, the fourth cell is one or more cells.

[0190] Optionally, the fifth cell is one or more cells.

[0191] Optionally, the sixth cell is one or more cells.

[0192] Optionally, the RSRP is a Layer 1 Reference Signal Received Power (L1-RSRP) or a CSI Reference Signal Received Power (CSI-RSRP).

[0193] Optionally, the SINR is a Signal-to-Interference-plus-Noise Ratio (SINR).

[0194] In the embodiment, for a plurality of the first cells having a same RSRP and a same SINR in a report quantity, the RSRP and the SINR are differentially reported.

[0195] In the embodiment of the present application, for a first cell reporting a precoding matrix indicator (PMI), a channel state information resource indicator (CSI-RS) and the precoding matrix indicator of the first cell are reported by the target cell, and / or a cell indicator or a cell ID sequence indicator is reported.

[0196] In the embodiment of the present application, when the multiple first cells have the same resource configuration, the CSI-RS and the precoding matrix indicator are reported in a joint reporting manner.

[0197] Optionally, when the CSI reporting resources of the first cells overlap in the time domain, multiple CSIs are reported by the target cell, including:

[0198] When the uplink channel control channels of the multiple first cells overlap with the uplink shared channels, the multiple CSIs are reported by the target cell of the uplink shared channels.

[0199] In the embodiment of the present application, cell (carrier) 1, cell (carrier) 2 and cell (carrier) 3 are cells (carriers) scheduled by the same DCI, and the CSI reporting resources of cell (carrier) 1, cell (carrier) 2 and cell (carrier) 3 overlap in the time domain or are located in a preset time domain range, then when cell (carrier) 1 and cell (carrier) 2 transmit PUCCH and report CSI, and cell (carrier) 3 reports CSI by PUSCH, the CSIs reported by CC1 and CC2 can be transmitted on the PUSCH of CC3.

[0200] Optionally, the multiple CSIs are reported by the target cell of the uplink shared channels, including:

[0201] The earliest or the latest cell of the uplink shared channels located in the preset time domain range is determined as the target cell for the CSI reporting.

[0202] Optionally, when the CSI reporting of the multiple first cells is periodic reporting, and the subcarrier spacings of the multiple first cells are the same, the multiple first cells are configured with the same reporting period and offset.

[0203] Or, when the CSI reporting of the multiple first cells is periodic reporting, and the subcarrier spacings of the multiple first cells are different, the multiple first cells are configured with different reporting periods and offsets.

[0204] In the embodiment of the present application, in the case that the multiple first cells are periodically reported and the subcell intervals of the multiple first cells are the same, the network device configures the multiple first cells with the same reporting period and offset.

[0205] In the embodiment of the present application, in the case that the multiple first cells are periodically reported and the subcell intervals of the multiple first cells are different, the network device configures the multiple first cells with different reporting periods and offsets.

[0206] The method of the embodiment of the present application can improve the probability of time domain overlap of the CSI reporting resources of the multiple first cells or the probability of uplink multiplexing transmission by different configuration modes of the period and offset of the cell, thereby improving the robustness and reliability of CSI reporting.

[0207] As shown in Figure 12 The embodiment of the present application further provides a multi-cell channel state information reporting device 1200, which comprises:

[0208] A reporting module 1201 is configured to report multiple channel state information (CSI) through a target cell in the case that a first condition is met.

[0209] The first condition comprises at least one of the following:

[0210] The reporting resources of the channel state information (CSI) of the multiple first cells overlap in the time domain.

[0211] The CSI reporting resources of the multiple first cells meet a preset time domain range.

[0212] The channel state information (CSI) comprises multiple CSI of one first cell or CSI of multiple first cells.

[0213] The target cell comprises one of the first cells, a second cell different from the first cells, a cell based on configuration or a cell based on indication.

[0214] As shown in Figure 13 The embodiment of the present application further provides a terminal 1300, which comprises a transceiver 131.

[0215] The transceiver 1301 is configured to report multiple channel state information (CSI) through a target cell in the case that a first condition is met.

[0216] The first condition comprises at least one of the following:

[0217] The reporting resources of the channel state information (CSI) of the multiple first cells overlap in the time domain.

[0218] The CSI reporting resources of the plurality of first cells satisfy a preset time domain range;

[0219] The channel state information (CSI) includes a plurality of CSI of one of the first cells or CSI of the plurality of first cells.

[0220] The target cell includes one of the first cells, a second cell different from the first cells, a cell based on configuration, or a cell based on indication.

[0221] Please refer to Figure 14 The embodiment of the application further provides a terminal 1400, which comprises a processor 1401, a memory 1402, and a computer program stored in the memory 1402 and executable on the processor 1401. When the computer program is executed by the processor 1401, each process of the above-mentioned multi-cell channel state information reporting method performed by the terminal is implemented, and the same technical effects are achieved. To avoid repetition, details are not described herein.

[0222] The embodiment of the application further provides a computer readable storage medium, which stores a computer program. When the computer program is executed by a processor, each process of the above-mentioned multi-carrier channel state information reporting method is implemented, and the same technical effects are achieved. To avoid repetition, details are not described herein. The computer readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0223] The embodiment of the application further provides a computer program product, which comprises computer instructions. When the computer instructions are executed by a processor, each process of the above-mentioned method embodiment is implemented, and the same technical effects are achieved. To avoid repetition, details are not described herein. Figure 4

[0224] It should be noted that, in this document, the term "comprising" or "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus including the element.

[0225] ​Through the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned example methods can be realized by means of software and a necessary general hardware platform, and of course, can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product in essence or in the form of a part that contributes to the prior art. The computer software product is stored in a storage medium (such as a ROM / RAM, a magnetic disk, or an optical disk) and includes a plurality of instructions for causing a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

[0226] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not restrictive. Those skilled in the art can make many forms without departing from the scope of the present application under the inspiration of the present application, and all of them belong to the protection of the present application.

Claims

1. A method for reporting channel state information across multiple cells, characterized in that, include: If the first condition is met, multiple Channel Status Information (CSI) messages are reported through the target cell. The first condition includes at least one of the following: The Channel State Information (CSI) reporting resources of multiple first cells overlap in the time domain; The CSI reported resources of multiple first cells meet the preset time domain range; The Channel State Information (CSI) includes multiple CSIs of one first cell or multiple CSIs of the first cell. The target cell includes: one of the first cells, a second cell different from the first cell, a configuration-based cell, or an indication-based cell.

2. The method according to claim 1, characterized in that, The method further includes: Multiple CSIs are reported through the target cell via the scheduling or triggering of one or more downlink control information messages; or... Based on configuration or instructions, multiple CSIs are reported through the target cell.

3. The method according to claim 1, characterized in that, The method further includes at least one of the following: The target cell is determined based on the configuration; The target cell is determined based on the serving cell ID in the configuration information; The target cell is determined based on the serving cell index in the configuration information; The target cell is determined based on the CSI's reported ID; The target cell is determined based on the cell's reporting frequency; The target cell is determined based on the cell's reporting cycle.

4. The method according to claim 1, characterized in that, The reporting order of multiple CSIs shall be determined according to at least one of the following: The serving cell index corresponding to the first cell; CSI's reporting ID; Configuration ID reported by CSI; Bitmaps corresponding to multiple first cells; The ID information of the first cell; The index information of the first cell in the serving cell set; Cell ID associated with CSI information; The cell ID carried in the CSI information.

5. The method according to claim 4, characterized in that, The reporting order of CSI or CSI information corresponding to the target cell is first.

6. The method according to claim 4, characterized in that, The method further includes: The first uplink transmission resource is determined based on the first instance. The CSI is reported via the first uplink transmission resource; Wherein, the reception or measurement of the first uplink transmission resource and the reference signal satisfies the first time, or the first uplink transmission resource and the reference resource satisfy the first time; The first time is the transmission time, processing time, processing delay, time offset, or configured time offset of the reference signal or synchronization signal.

7. The method according to claim 1, characterized in that, The method further includes: If there are no reporting resources in the first time slot of the target cell, the second time slot is determined based on the uplink transmission resources of the third cell; Report the plurality of CSIs in the second time slot; Wherein, the first time slot is the time slot corresponding to the plurality of CSI reported resources, and the third cell is a cell in the first cell that is different from the target cell; The uplink transmission resources are the union of the transmission parameters of the third cell, or the uplink transmission resources are the configured transmission parameters of the third cell; the transmission parameters include period and / or offset.

8. The method according to claim 1, characterized in that, The reporting of multiple Channel State Information (CSI) messages through the target cell includes at least one of the following: For the fourth cell in the first cell whose reported quantity includes reference signal received power and / or signal-to-interference-plus-noise ratio, differential reporting of the reference signal received power and / or the signal-to-interference-plus-noise ratio is performed on the target cell; For the fifth cell in the first cell whose reported data includes a precoding matrix indication, the channel state information resource indication and / or the precoding matrix indication of the fifth cell are reported through the target cell, and / or, the cell indication is included or indicated in order of cell ID. For the sixth cell in the first cell whose reported quantity includes a precoding matrix indicator and whose channel state information resource indicator and / or precoding matrix indicator are the same, the channel state information resource indicator and precoding matrix indicator of the sixth cell are reported through the target cell, and the channel quality indicator and / or rank indicator corresponding to each sixth cell are also reported.

9. The method according to claim 1 or 3, characterized in that, When the CSI reporting resources of multiple first cells overlap in the time domain, multiple CSIs are reported through the target cell, including: In the case where the uplink control channel and uplink shared channel of multiple first cells overlap, the multiple CSIs are reported by the target cell through the uplink shared channel.

10. The method according to claim 1, characterized in that, When multiple first cells report CSI periodically and the subcarrier spacing of multiple first cells is the same, multiple first cells are configured with the same reporting period and offset. Alternatively, if the CSI reports of multiple first cells are periodic and the subcarrier spacing of the multiple first cells is different, the multiple first cells are configured with different reporting periods and offsets.

11. A multi-cell channel state information reporting device, characterized in that, include: The reporting module is used to report multiple Channel Status Information (CSI) messages to the target cell when the first condition is met. The first condition includes at least one of the following: The Channel State Information (CSI) reporting resources of multiple first cells overlap in the time domain; The CSI reported resources of multiple first cells meet the preset time domain range; The Channel State Information (CSI) includes multiple CSIs of one first cell or multiple CSIs of the first cell. The target cell includes: one of the first cells, a second cell different from the first cell, a configuration-based cell, or an indication-based cell.

12. A terminal, characterized in that, Including transceivers, among which, The transceiver is used to report multiple Channel State Information (CSI) messages to the target cell when a first condition is met. The first condition includes at least one of the following: The Channel State Information (CSI) reporting resources of multiple first cells overlap in the time domain; The CSI reported resources of multiple first cells meet the preset time domain range; The Channel State Information (CSI) includes multiple CSIs of one first cell or multiple CSIs of the first cell. The target cell includes: one of the first cells, a second cell different from the first cell, a configuration-based cell, or an indication-based cell.

13. A terminal, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the multi-cell channel state information reporting method as described in any one of claims 1 to 10.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the multi-cell channel state information reporting method as described in any one of claims 1 to 10.

15. A computer program product, characterized in that, It includes computer instructions that, when executed by a processor, implement the steps of the multi-cell channel state information reporting method as described in any one of claims 1 to 10.

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