Wireless signal reporting method and apparatus

Abstract

A method of wireless communication includes a communication device receiving a reference signal and a configuration from a network device, the communication device determining a report based on one or more transmissions and the configuration, and the communication device transmitting the report to the network device. The reference signal can be a channel state information reference signal.

Description

Technical Field

[0001] This application generally relates to wireless communication. Background Technology

[0002] Wireless communication technologies are driving the world toward an increasingly interconnected and networked society. The rapid growth and technological advancements in wireless communication have led to greater demands for capacity and connectivity. Other factors, such as energy consumption, equipment cost, spectrum efficiency, and latency, are also crucial for meeting the needs of various communication scenarios. Compared to existing wireless networks, next-generation systems and wireless communication technologies need to support more users and devices while adapting to an increasingly mobile society. Summary of the Invention

[0003] Various technologies that can be implemented by embodiments of mobile communication technologies, including fifth-generation (5G), new radio (NR) and other wireless networks, are disclosed. In one exemplary aspect, a wireless communication method is disclosed. The method includes: a communication device receiving a reference signal and a configuration from a network device; the communication device determining a report based on the reference signal and the configuration; and the communication device sending the report to the network device.

[0004] In another exemplary aspect, a different wireless communication method is disclosed. The method includes: a network device transmitting a reference signal and a configuration to a communication device; and the network device receiving a report from the communication device, wherein the report is generated based on the reference signal and the configuration.

[0005] In yet another exemplary aspect, the above-described methods are embodied in the form of a computer-readable medium storing processor-executable code for implementing the methods.

[0006] In another exemplary embodiment, an apparatus configured or operable to perform the methods described above is disclosed. The apparatus includes a processor configured to implement the methods described above. The above and other aspects and their embodiments are described in more detail in the accompanying drawings, description and claims. Attached Figure Description

[0007] Figure 1 This is a block diagram example of a wireless communication system.

[0008] Figure 2 This is a flowchart of an exemplary wireless communication method. Figure 3 This is a flowchart of an exemplary wireless communication method. Figure 4 This is a flowchart of an exemplary wireless communication method. Detailed Implementation

[0009] In this application, chapter headings are used solely for readability purposes and do not limit the scope of the embodiments and techniques disclosed in each chapter to that chapter. Some features are described using examples of fifth-generation (5G) wireless protocols. However, the applicability of the disclosed techniques is not limited to 5G wireless systems.

[0010] 1. Introduction Multiple-input multiple-output (MIMO) is one of the key technologies in New Radio (NR) systems and has been successfully deployed in commercial applications. In Rel-15 / 16 / 17, the characteristics of MIMO were studied and specified for both FDD (Frequency Division Duplex) and TDD (Time Division Duplex) systems.

[0011] To achieve higher downlink (DL) throughput, wider coverage, and greater flexibility in multi-user multiple-input multiple-output (MU-MIMO) scheduling, base stations (BSs) need to be configured with more and more antenna ports, such as 64 or 128 ports in a reference signal resource set (e.g., a Channel State Information Reference Signal (CSI-RS) resource set).

[0012] Currently, the 3GPP (3rd Generation Partnership Project) standards expect communication equipment (e.g., User Equipment) to derive CSI parameters based on only one reported CRI (CSI-RS Resource Indicator). If a parameter value is configured within a set... Each CSI-RS resource can contain a maximum of 16 CSI-RS ports. If the collection is configured with... If there are multiple CSI-RS resources, each resource can contain a maximum of 8 CSI-RS ports.

[0013] In the current 3GPP specification, besides those configured with 'cri-RI-PMI-CQI'... reportQuantity And those set to 'typeII-CJT-r18', 'typeII-CJT-PortSelection-r18', 'typeII-Doppler-r18', or 'typeII-Doppler-PortSelection-r18' codebookType of CSI-ReportConfig In addition, if the UE is also configured to send higher-level parameters reportQuantity Set to 'cri-RSRP', 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', 'cri-RI-CQI', 'cri-RI-LI-PMI-CQI', 'cri-SINR', or 'cri-SINR-Index' CSI-ReportConfigAnd configured in the corresponding resource set used for channel measurement One resource ( If so, the UE is expected to derive the CSI parameters based on only one reported CRI (CSI-RS Resource Indicator), where the CRI... k ( k ≥ 0) corresponds to the value used for channel measurement. NZP-CSI-RS-ResourceSet Related nzp-CSI-RS- Resources The configured ( k +1) entries, and corresponding csi-IM-ResourceSet (If configured) associated with csi-IM-Resource The ( k +1) entries, or corresponding to those used for interference measurements. NZP-CSI-RS-ResourceSet (If targeting) CSI-ReportConfig If configured, this CSI-ReportConfig With settings set to 'cri-SINR' or 'cri-SINR-Index' reportQuantity (related to) nzp-CSI-RS-Resources The ( k +1) entries. In some embodiments disclosed in this application, more than one CRI can be reported, and the UE can derive more CSI parameters based on these reported CRIs, which is also referred to as CRI-based CSI reporting extension. In some embodiments, for hybrid beamforming, a channel quality indicator (CQI), a precoding matrix indicator (PMI), or a rank indicator (RI) can be calculated for each CRI (for >= 1 CRI). Furthermore, each resource within the set can contain up to 32 or more CSI-RS ports. Specifically, the method includes the following embodiments: As further discussed in the first set of embodiments of this application, the reference signal configuration (specifically, an example of a CSI-RS configuration is shown) is enhanced. In the second set of embodiments, a reporting method using multiple sets of CSI parameters (CRI, RI, PMI, CQI) is used. In the third set of embodiments, CSI reporting using different physical channels (such as the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH)) is enhanced for multiple sets of CSI parameters. In the fourth set of embodiments, CSI report priority calculation is provided for CRI-based CSI reporting.

[0014] In the future, more than one CRI will be reported, and the UE will derive more CSI parameters based on these reported CRIs. This is also known as the extension of CRI-based CSI reporting (calculating CQI / PMI / RI for >= 1 CRI) for hybrid beamforming. Furthermore, if configured... Each CSI-RS resource should contain a maximum of 32 or more CSI-RS ports. If configured... Each CSI-RS resource should contain a maximum of 32 or more CSI-RS ports. Parameters K s Indicates the quantity of resources. Example 0: The General Process of CSI Reporting According to some embodiments, the UE receives configuration signaling and CSI-RS from the BS. Next, the UE determines the CSI based on the configuration signaling and CSI-RS, wherein the CSI may include one or more channel quality indicators (CQI), one or more precoding matrix indicators (PMI), one or more layer indicators (LI), one or more rank indicators (RI), or one or more CSI-RS resource indicators (CRI); the UE sends the CSI report to the BS.

[0015] In some embodiments, a CSI-RS may consist of K CSI-RS resources. The time slot offset of each CSI-RS resource is configured in Within a time slot, and without DL / UL (downlink / uplink) handover between two resources, among which Indicates the The resources are configured in the same time slot, and Indicates the A resource is configured in two adjacent time slots... If K>=4 and each resource contains more than 16 or 32 CSI-RS ports, then the value of X should be X>=2.

[0016] In some embodiments, K Each CSI-RS resource is configured in a CSI-RS resource set, and each resource will contain a maximum of 32 or more CSI-RS ports.

[0017] Example 1: CSI-RS Configuration According to some implementations of Example 1, the gNB configures K CSI-RS resources for channel measurements. K is a positive integer. K can be greater than 1.

[0018] In some embodiments, K Each CSI-RS resource is configured in a CSI-RS resource set, and each resource should contain 32 or more CSI-RS ports. The time slot offset of each CSI-RS resource is configured in Within each time slot, there is no DL / UL handover between the two resources, among which express Resources are configured within the same time slot, while express A resource is configured within two adjacent time slots… If K>=4, and each resource contains more than 16 or 32 CSI-RS ports, then the value of X should be X>=2. There may be some limitations on the time offset between CSI-RS resources. For example, the maximum / minimum allowed time offset between adjacent CSI-RS resources is configured by the gNB or depends on the UE's capabilities.

[0019] In some embodiments, the equal time offset between adjacent CSI-RS resources is configured by the gNB or depends on the UE capability.

[0020] In some embodiments, K Each CSI-RS resource is configured in a CSI-RS resource setting, a CSI-RS resource set, or a group of G CSI-RS resources. The value of G is configured by gNB or higher-level parameters. Furthermore, embodiments may employ one or more of the following features: - Parameters powerControlOffset Each CSI-RS resource can be the same or different.

[0021] - Parameters powerControlOffsetSS Each CSI-RS resource can be the same or different.

[0022] - If the interference measurement is performed on CSI-IM, only one resource is configured.

[0023] - If the interference measurement is performed on CSI-IM, configure K resources.

[0024] - If the interference measurement is performed on NZP-CSI-RS, only one resource is configured.

[0025] - If the interference measurement is performed on NZP-CSI-RS, then configure K resources.

[0026] Example 2: CSI Report According to some implementations of Example 2, the gNB configures K CSI-RS resources for channel measurements. K is a positive integer. K can be greater than 1. In some embodiments, the UE determines group L of CRI, RI, PMI, and CQI within the CSI report. 1 <= L <= K, and the value of L is configured by the gNB or reported by the UE.

[0027] In some embodiments, the UE determines L groups of CRI, RI, PMI, and CQI within L separate CSI reports. 1 <= L <= K, and the value of L is configured by the gNB or reported by the UE.

[0028] The implementation may further incorporate one or more of the following features: - Configure K specific RI limits for each of the K CSI-RS resources. - Configure a shared RI limit for K CSI-RS resources - Configure K specific codebook subset constraints for each of the K CSI-RS resources - Configure a shared codebook subset constraint for K CSI-RS resources - The selected L CRIs are indicated by a bitmap or combination number.

[0029] - Report L group RI, PMI, CQI based on the ascending / descending order of the associated CSI-RS resource ID.

[0030] Here, codebook subset limitation refers to a parameter that controls the limitations of reporting parameters, such as those described in the 3G Partnership Technical Specification 38.214. This codebook subset limitation parameter can be configured by the base station or, alternatively, selected based on UE capabilities. Regarding L CQIs, the following features may be adopted in the implementation. - For each CQI in group L, each CQI consists of a wideband reference CQI and F subband differential CQIs. Each wideband reference CQI occupies 4 bits, and each subband differential CQI occupies 2 bits.

[0031] - The L CQIs consist of one wideband reference CQI and F*L subband differential CQIs. The wideband reference CQI occupies 4 bits, and each subband differential CQI occupies 2 bits. Each subband differential CQI is associated with the wideband reference CQI.

[0032] - The L CQIs consist of one wideband reference CQI, L-1 wideband differential CQIs, and F*L subband differential CQIs. The wideband reference CQI occupies 4 bits, each wideband differential CQI occupies 2 bits, and each subband differential CQI occupies 2 bits.

[0033] - The L CQIs consist of L wideband reference CQIs, F first subband differential CQIs, and F*(L-1) second subband differential CQIs. Each wideband reference CQI occupies 4 bits, each first subband differential CQI occupies 2 bits, and each second subband differential CQI occupies 1 bit. Each second subband differential CQI is distinct from each first subband differential CQI.

[0034] In some embodiments, if cqi-FormatIndicatorIf set to 'subbandCQI', then the UE reports for each subband in the CSI reporting band. One CQI; or, if cqi-FormatIndicator If set to 'widebandCQI', the UE report will be valid for the entire CSI reporting band. Each CQI. For example, for The second CQI includes a 4-bit wideband CQI index, and if subband CQI reporting is configured, it also includes a 2-bit subband CQI index, which is calculated independently of the first CQI, and both CQIs are reported in the same CSI report.

[0035] In some embodiments, certain CSI information may be omitted or discarded from the CSI report. Regarding CSI discarding, various embodiments may employ the following features: - CSI report format when parts of K CSI-RS are discarded □ All L-group CRI, RI, PMI, and CQI data were discarded. ○The UE will only report a CSI report after receiving at least one CSI-RS transmission for each CSI-RS resource in the CSI-RS resource set, no later than the time of the CSI reference resource; otherwise, the report will be discarded.

[0036] □ Only the corresponding groups CRI, RI, PMI, and CQI are discarded. The UE will only report a CSI report after receiving at least one CSI-RS transmission for at least one CSI-RS resource in the CSI-RS resource set no later than the time of the CSI reference resource; otherwise, the report will be discarded.

[0037] Example 3: UCI (Uplink Control Information) Mapping in CSI Reports Various example implementations are described with reference to Tables 1 through 8.

[0038] In some embodiments according to Example 3, the gNB is configured with K CSI-RS resources for channel measurements. K is a positive integer and may be greater than 1. In some embodiments, the UE determines group L of CRI, RI, PMI, and CQI within a CSI report. 1 ≤ L ≤ K, and the value of L is configured by the gNB or reported by the UE.

[0039] The CSI report consists of at least two parts: CSI Part 1 and CSI Part 2. The format of each part may depend on the physical channel used to transmit the CSI report. Example 3-1: Using PUCCH for CSI reporting: In some embodiments, CSI reporting using PUCCH can be performed as follows. The CSI report consists of two parts: CSI Part 1 and CSI Part 2.

[0040] For Type I CSI feedback - The first part contains L RIs and selections. The second part contains a bitmap of CSI-RS resources (if reported), L CQIs for the first codeword, and zero-padded to a fixed payload size (if required). The third part contains L CQIs (if reported), L LIs (if reported), and L PMIs for the second codeword when the RI is greater than 4.

[0041] - The first part contains L RIs, L CRIs, and L CQIs for the first codeword, and is zero-padded to a fixed payload size (if needed). The second part contains L CQIs (if reported), L LIs (if reported), and L PMIs for the second codeword when the RI is greater than 4. Table 1 shows example fields used for the first part of the CSI. Table 1

[0042] In some embodiments, the second part of the CSI comprises two parts: a broadband portion and a subband portion.

[0043] In some embodiments, the PMI comprises two parts. PMI Fields and PMI field Table 2 lists example fields from the CSI Part 2 structure of this report. Table 2

[0044] Table 3 shows an example of the fields in the CSI Part 2 subband report. Table 3

[0045] Example 3-2: CSI Report Using PUSCH: In some embodiments, PUSCH can be used to perform CSI reporting.

[0046] In some embodiments, the CSI report comprises two parts, referred to as CSI Part 1 and CSI Part 2.

[0047] In some embodiments, the following features may be used for Type I CSI feedback: - The first part contains L RIs, used for selection. The bitmap of CSI-RS resources (if reported), L CQIs for the first codeword, and zero-padded to a fixed payload size (if required). The second part contains L CQIs, L LIs (if reported), and L PMIs for the second codeword when RI is greater than 4, or - The first part contains L RIs, L CRIs, and L CQIs for the first codeword, and is zero-padded to a fixed payload size (if required). The second part contains L CQIs, L LIs (if reported), and L PMIs for the second codeword (if reported) when the RI is greater than 4. Table 4 lists examples of the fields in the first part of the CSI. Table 4

[0048] In some embodiments, the second part of the CSI comprises two parts: a broadband portion and a subband portion.

[0049] In some embodiments, the PMI comprises two parts. PMI Fields and PMI field .

[0050] Tables 5 and 6 show examples of the wideband field and subband field of CSI Part II, respectively. Table 5

[0051] Table 6

[0052] In some embodiments, the CSI report comprises two parts: CSI Part 1 and CSI Part 2. The following features can be implemented: For the enhanced Type II CSI feedback: The first part contains L RIs (if reported), L CQIs, the total number of non-zero amplitude coefficients for cross-layer reporting for each selected CSI-RS resource, and the selected... A bitmap of CSI-RS resources (if reported). The first part's fields include: L RIs (if reported), L CQIs, total number of non-zero amplitude coefficients across tiers, and selection... Each CSI-RS resource bitmap (if reported) is encoded separately. The second part contains the selected... L PMIs for each CSI-RS resource. Part 1 and Part 2 are encoded separately. Table 7 shows an example of the CSI Part 1 fields based on these characteristics.

[0053] Table 7

[0054] In some embodiments, for enhanced Type II CSI feedback, the second part of the CSI comprises three parts: CSI second part group 0, CSI second part group 1, and CSI second part group 2.

[0055] In some embodiments, the PMI comprises two parts. PMI Fields and PMI field .

[0056] Table 8 shows example fields for different groupings in Part II of CSI. Table 8

[0057] Example 4: Priority Rules of CSI Part 2 Clause 5.2.5 of the current technical specification TS 38.214 contains the following:

[0058] According to some embodiments of this application, a CSI report composed of L groups of CRI, RI, PMI, and CQI can be implemented using the following priority: In some embodiments, the CSI report has the same priority as a CSI report that does not carry L1-RSRP or L1-SINR. In some embodiments, k=0 It can be used to calculate the priority of CSI reports.

[0059] Alternatively, in some embodiments, this CSI report has a different priority than CSI reports that do not carry L1-RSRP or L1-SINR. Here, -k=1 It can be used to calculate the priority of CSI reports, and / or -k=2 It can be used to calculate the priority of CSI reports.

[0060] Some preferred embodiments may employ the following technical solutions.

[0061] 1. A wireless communication method (e.g., Figure 3 The method 300 shown includes: a communication device receiving a reference signal and a configuration from a network device; the communication device determining a report based on the reference signal and the configuration; and the communication device sending the report to the network device.

[0062] 2. A wireless communication method (e.g., Figure 4 The method 400 shown includes: a network device sending a reference signal and configuration to a communication device; and the network device receiving a report from the communication device, wherein the report is generated based on the reference signal and the configuration.

[0063] 3. The method of Scheme 1, wherein the reference signal includes a Channel State Information Reference Signal (CSI-RS), and wherein the report includes Channel State Information (CSI).

[0064] 4. The method of any one of Schemes 1 to 3, wherein the CSI includes one or more of the following: a plurality of channel quality indicators (CQI), a plurality of precoding matrix indicators (PMI), a plurality of layer indicators (LI), a plurality of rank indicators (RI), or a plurality of reference signal resource indicators (CRI).

[0065] 5. The method of Scheme 1, wherein the reference signal comprises K resources, where K is a positive integer, and wherein the K resources are configured in X∈{1,2,...N}, where X and N are positive numbers.

[0066] 6. The method of any one of embodiments 1 to 5, wherein the K resources are configured in a resource set, wherein each resource in the resource set contains up to 32 or more reference signal ports, and wherein the time offset between the resources in the resource set is configured according to a rule. Several examples of such a rule are provided in this application with reference to embodiments 1 to 3.

[0067] 7. The method of Scheme 6, wherein the rule specifies the maximum or minimum time offset between adjacent reference signal resources, the time offset being specified by the network device or determined according to the capabilities of the communication device.

[0068] 8. The method of any one of schemes 1 to 7, wherein the K resources are configured in a single resource set or G resource groups, wherein G is a positive integer greater than 1 and is configured by the network device or determined according to the capabilities of the communication device.

[0069] 9. The method as described in Scheme 5, wherein the K resources are configured for channel measurement.

[0070] 10. The method of Scheme 9, comprising: the wireless device determining L groups of channel quality indicators, precoding matrix indicators, layer indicators, rank indicators, or reference signal resource indicators, wherein L is an integer satisfying 1 ≤ L ≤ K, and L is specified by the wireless device or the network device; or, the wireless device reporting the report only after receiving at least one CSI-RS transmission for each CSI-RS resource in the CSI-RS resource set no later than the time of the CSI reference resource, otherwise discarding the report. From the perspective of the base station, this scheme may include the base station receiving the L groups determined by the wireless device.

[0071] 11. The method as described in Scheme 9, wherein: K specific rank indicator constraints were configured for each of the K resources; A shared rank indicator constraint is configured for K resources; K specific codebook subset constraints were configured for each of the K resources; A shared codebook subset constraint is configured for K resources; The number L of selected resource indicators is indicated by a bitmap or combination number; or Report the L-group rank indicator, precoding matrix indicator, or channel quality indicator based on the ascending or descending order of the associated resource ID.

[0072] 12. The method as described in Scheme 4, wherein each of the plurality of CQIs consists of a broadband reference CQI and F subband differential CQIs, the value of F being associated with the corresponding subband number; or, the plurality of CQIs consists of a broadband reference CQI and F subband differential CQIs, the value of F being associated with the corresponding subband number.

[0073] 13. The method as described in Scheme 12, wherein one broadband reference CQI occupies 4 bits and each subband differential CQI occupies 2 bits.

[0074] 14. The method of any one of schemes 1 to 13, wherein when the report is transmitted, a portion of the report is omitted, the omitted portion including: an L-group rank indicator, a precoding matrix indicator, or a channel quality indicator. From the perspective of the base station, the received report is based on the following: certain information in the report has been omitted.

[0075] 15. The method of claim 10, wherein the report comprises a first part and a second part.

[0076] 16. The method of claim 15, wherein the first part comprises one or more of the following: a plurality of RIs, a plurality of CRIs, a bitmap indicating a reference signal resource, or a plurality of CQIs selected for the first codeword.

[0077] 17. The method of claim 15, wherein the mapping order of one or more fields of the report includes: For mapping to the first part: The first CRI among multiple CRIs, the first RI among multiple RIs, the first wideband WB CQI among multiple CQIs used for the first transport block TB, and the first subband differential CQI among multiple CQIs used for the first TB in ascending order of subband number. The second CRI among multiple CRIs, the second RI among multiple RIs, the second WBCQI among multiple CQIs used for the first TB, or the second subband differential CQI among multiple CQIs used for the first TB in ascending order of subband number, in this order.

[0078] 18. The method of any one of claims 15-17, wherein the second part comprises one or more of the following: a plurality of CQIs, a plurality of LIs, or a plurality of PMIs for the second codeword when RI is greater than 4.

[0079] 19. The method of embodiment 15, wherein the second part comprises a second part broadband portion of CSI and a second part subband portion of CSI.

[0080] 20. The method of embodiment 18, wherein each of the plurality of PMIs includes a PMI field. and PMI field .

[0081] 21. As described in Scheme 19, the mapping order of one or more CSI fields in the CSI report includes: For mapping to the broadband portion of CSI Part 2: The first broadband WB CQI used for the second TB among multiple CQIs, the first LI among multiple LIs, and the first PMI broadband information field among multiple PMIs. The first PMI broadband information field among multiple PMIs .

[0082] The second WB CQI used for the second TB among multiple CQIs, the second LI among multiple LIs, and the second PMI broadband information field among multiple PMIs. The second PMI broadband information field in one or more PMIs , in this order.

[0083] 22. As described in Scheme 19, the mapping order of one or more CSI fields in the CSI report includes: For the portion mapped to the second subband of CSI: For all even-numbered subbands arranged in ascending order of subband number, the differential CQI for the i-th subband of the second transport block TB is followed by the i-th PMI information field, where i ranges from 1 to L; followed by For all odd-numbered subbands arranged in ascending order of subband number, the i-th subband differential CQI is used in the second transport block TB, followed by the i-th PMI information field, where the value of i ranges from 1 to L.

[0084] 23. The method of Scheme 15, wherein the second part comprises CSI second part group 0, CSI second part group 1 and CSI second part group 2.

[0085] 24. As described in Scheme 23, the mapping order of one or more CSI fields in the CSI report includes: For mapping to CSI Part 2 Group 0: The i-th broadband CQI, the i-th LI, and the i-th PMI broadband information fields The i-th PMI broadband information field , where i ranges from 1 to L.

[0086] 25. As described in Scheme 23, the mapping order of one or more CSI fields in the CSI report includes: For mapping to CSI Part 2 Group 1: For even-numbered subbands arranged in ascending order, the differential CQI and PMI broadband information fields of the i-th subband in the second transmission block are used. Where i takes values ​​from 1 to L, followed by For odd-numbered subbands arranged in ascending order, the differential CQI and PMI broadband information fields of the i-th subband in the second transport block are used. , where i ranges from 1 to L.

[0087] 26. As described in Scheme 23, the mapping order of one or more CSI fields in the CSI report includes: For mapping to CSI Part 2 Group 2: The PMI field of the i-th sub-band The remaining part, where i ranges from 1 to L.

[0088] 27. The method of any one of schemes 1-26, wherein the report is made using the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH).

[0089] 28. The method of claim 10, wherein the report comprises at least two parts, wherein the format of the at least two parts is defined according to the physical channel used to transmit the report.

[0090] 29. The method of claim 13, wherein the at least two parts comprise a first part and a second part, and wherein the physical channel for transmitting the report comprises an uplink control channel or an uplink shared channel.

[0091] 30. The method of Scheme 1, wherein the report is transmitted according to a priority value, the priority value being determined as follows:

[0092] Where y is a variable depending on the physical channel through which the report is transmitted, k is a variable determined by the report type, c is a variable determined by the serving cell index, and s is a variable determined by the configured identifier used in the report. and The values ​​are configured by the network device, wherein the report includes L groups of channel quality indicators, precoding matrix indicators, layer indicators, rank indicators, or reference signal resource indicators.

[0093] 31. The method of embodiment 30, wherein the report has the same priority as the report of non-layer 1 reference signal received power or the report of layer 1 signal with interference plus noise ratio.

[0094] 32. The method of embodiment 30, wherein the report has a different priority than the report on the non-layer 1 reference signal received power or the layer 1 signal-to-interference-plus-noise ratio report.

[0095] 33. The method of any one of schemes 1-32, wherein k = 0, 1 or 2. 34. An apparatus for wireless communication, comprising at least one processor configured to perform the method described in any one of schemes 1-33.

[0096] 35. A computer storage medium having code stored thereon, said code, when executed by at least one processor, causing said at least one processor to implement the above schemes 1-33.

[0097] In the above scheme, each variable i, k, L, K, F, etc. takes integer values.

[0098] Figure 1An example of a wireless communication system (e.g., a Long Term Evolution (LTE), 5G, or NR cellular network) is illustrated, comprising a base station 120 and one or more user equipments (UEs) 111, 112, and 113. In some embodiments, uplink transmissions (131, 132, 133) may include uplink control information (UCI), higher-layer signaling (e.g., radio link layer messages), or uplink information. In some embodiments, downlink transmissions (141, 142, 143) may include DCI, reference signal configuration, reference signal transmission, higher-layer signaling, or other downlink information. The UE may be, for example, a smartphone, tablet, mobile computer, machine-to-machine (M2M) device, terminal, mobile device, Internet of Things (IoT) device, etc. The disclosed techniques may be implemented by UEs 111, 112, and / or 113.

[0099] Figure 2 This is a block diagram representation of a portion of an apparatus according to some embodiments of the present disclosure. Apparatus 205 (e.g., a network device, base station, or wireless device (or UE)) may include processor electronics 210, such as at least one processor or microprocessor, implementing one or more technologies presented in this application. Apparatus 205 may include transceiver electronics 215 for transmitting and / or receiving wireless signals via one or more communication interfaces (e.g., antenna 220). Apparatus 205 may include other communication interfaces for transmitting and receiving data. Apparatus 205 may include one or more memories (not explicitly shown) configured to store information such as data and / or instructions. In some embodiments, processor electronics 210 may include at least a portion of transceiver electronics 215. In some embodiments, at least some of the disclosed technologies, modules, or functions are implemented using apparatus 205.

[0100] In this application, the UE or communication device may include a mobile phone, smartphone, laptop computer, or any other electronic device capable of wireless communication. In this application, the base station BS may be a gNB (Next Generation Node B), a wireless network device, or a TRP (Transmit and Receive Point). In this application, "antenna port" may be equivalent to "BS antenna port" or "CSI-RS (Channel State Information Reference Signal) antenna port," and "higher layer parameters" may be equivalent to "RRC (Radio Resource Control) parameters." It should also be understood that although the above techniques are described with reference to various embodiments, the format and order described in one embodiment may be appropriately adopted from the format and field order of other embodiments.

[0101] It should be understood that this application provides techniques for codebook enhancement to support PMI reporting with more than 32 antenna ports. By reducing PMI reporting overhead, DL precoding performance is guaranteed.

[0102] Certain embodiments described in this application are set forth in the general context of methods or processes that can be implemented in one embodiment as a computer program product embodied in a computer-readable medium containing computer-executable instructions, such as program code, executable by a computer in a networked environment. The computer-readable medium may include removable and non-removable storage devices, including but not limited to read-only memory (ROM), random access memory (RAM), optical disc (CD), digital versatile optical disc (DVD), etc. Therefore, the computer-readable medium may include non-transitory storage media. Typically, program modules may include routines, programs, objects, components, data structures, etc., that perform a specific task or implement a specific abstract data type. Computer or processor-executable instructions, associated data structures, and program modules represent examples of program code for performing the method steps disclosed in this application. Specific sequences of such executable instructions or associated data structures represent examples of corresponding operations for implementing the functionality described in that step or process.

[0103] Some of the disclosed embodiments can be implemented as devices or modules using hardware circuitry, software, or a combination thereof. For example, a hardware circuitry implementation may include discrete analog and / or digital components, which may be integrated, for example, as part of a printed circuit board. Alternatively, the disclosed components or modules may be implemented as application-specific integrated circuits (ASICs) and / or field-programmable gate arrays (FPGAs). Some implementations may additionally or alternatively include a digital signal processor (DSP), a special-purpose microprocessor whose architecture is optimized for the operational requirements of digital signal processing related to the functions disclosed herein. Similarly, various components or sub-components within each module may be implemented using software, hardware, or firmware. Connections between modules and between components within a module may be implemented using any connection method and medium known in the art, including but not limited to communication via the Internet, wired or wireless networks, and employing appropriate protocols.

[0104] Although this application contains numerous specific details, these details should not be construed as limiting the scope of the claimed invention or the claimable content, but rather as descriptions of features specific to particular embodiments. Features described in the context of different embodiments in this application may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments. Furthermore, although features may be described as functioning in a particular combination or even originally claimed in this form, in some cases one or more features may be omitted from the claimed combination, and the claimed combination may refer to a sub-combination or a variation thereof. Similarly, although operations are depicted in a specific order in the drawings, this should not be construed as requiring these operations to be performed in the specific or sequential order shown, nor should it be construed as requiring the performance of all illustrated operations to obtain the desired result.

[0105] This application describes only a few implementation methods and examples, but other implementation methods, improvements and modifications can be made based on the description and illustrations in this application.

Claims

1. A wireless communication method, comprising: Communication equipment receives reference signals and configurations from network equipment; The communication device determines a report based on the reference signal and the configuration; and The communication device sends the report to the network device.

2. A wireless communication method, comprising: Network devices send reference signals and configurations to communication devices; and The network device receives a report from the communication device, wherein the report is generated based on the reference signal and the configuration.

3. The method of claim 1 or 2, wherein the reference signal includes a channel state information reference signal (CSI-RS), and wherein the report includes channel state information (CSI).

4. The method of any one of claims 1 to 3, wherein the CSI comprises one or more of the following: a plurality of channel quality indicators (CQI), a plurality of precoding matrix indicators (PMI), a plurality of layer indicators (LI), a plurality of rank indicators (RI), or a plurality of reference signal resource indicators (CRI).

5. The method of claim 1, wherein the reference signal comprises K resources, where K is a positive integer, and wherein the K resources are configured in X∈{1,2,...N}, where X and N are positive numbers.

6. The method of claim 5, wherein the K resources are configured in a resource set, wherein each resource in the resource set contains up to 32 or more reference signal ports, and wherein the time offset between the resources in the resource set is configured according to a rule.

7. The method of claim 6, wherein the rule specifies a maximum or minimum time offset between adjacent reference signal resources, the time offset being specified by the network device or determined according to the capabilities of the communication device.

8. The method of any one of claims 5 to 7, wherein the K resources are configured in a single resource set or G resource groups, wherein G is a positive integer greater than 1 and is configured by the network device or determined according to the capabilities of the communication device.

9. The method of claim 5, wherein the K resources are configured for channel measurement.

10. The method of claim 9, comprising: The wireless device determines L sets of channel quality indicators, precoding matrix indicators, layer indicators, rank indicators, or reference signal resource indicators, where L is an integer satisfying 1 ≤ L ≤ K, and L is specified by the wireless device or the network device, or The wireless device only reports the report after receiving at least one CSI-RS transmission for each CSI-RS resource in the CSI-RS resource set, no later than the time of the CSI reference resource; otherwise, it discards the report.

11. The method of claim 9, wherein: K specific rank indicator constraints were configured for each of the K resources; A shared rank indicator constraint is configured for K resources; K specific codebook subset constraints were configured for each of the K resources; A shared codebook subset constraint is configured for K resources; The number L of selected resource indicators is indicated by a bitmap or combination number; or Report the L-group rank indicator, precoding matrix indicator, or channel quality indicator based on the ascending or descending order of the associated resource ID.

12. The method of claim 4, wherein, Each of the plurality of CQIs consists of a broadband reference CQI and F subband differential CQIs, where the value of F is associated with the corresponding subband number, or The plurality of CQIs consists of a broadband reference CQI and F subband differential CQIs, the value of F being associated with the corresponding subband number.

13. The method of claim 12, wherein each broadband reference CQI occupies 4 bits and each subband differential CQI occupies 2 bits.

14. The method of any one of claims 1 to 13, wherein when the report is transmitted, a portion of the report is omitted, the omitted portion including: L-group rank indicator, precoding matrix indicator, or channel quality indicator.

15. The method of claim 10, wherein the report comprises a first part and a second part.

16. The method of claim 15, wherein the first portion comprises one or more of the following: a plurality of RIs, a plurality of CRIs, a bitmap indicating a reference signal resource, or a plurality of CQIs selected for the first codeword.

17. The method of claim 15, wherein the mapping order of one or more fields of the report comprises: For mapping to the first part: The first CRI among multiple CRIs, the first RI among multiple RIs, the first wideband WB CQI among multiple CQIs used for the first transport block TB, and the first subband differential CQI among multiple CQIs used for the first TB in ascending order of subband number. The second CRI among multiple CRIs, the second RI among multiple RIs, the second WBCQI among multiple CQIs used for the first TB, or the second subband differential CQI among multiple CQIs used for the first TB in ascending order of subband number, in this order.

18. The method of any one of claims 15-17, wherein the second part comprises one or more of the following: a plurality of CQIs, a plurality of LIs, or a plurality of PMIs for the second codeword when RI is greater than 4.

19. The method of claim 15, wherein the second portion comprises a second CSI broadband portion and a second CSI subband portion.

20. The method of claim 18, wherein each of the plurality of PMIs includes a PMI field. and PMI field .

21. The method of claim 19, wherein the mapping order of one or more CSI fields in the CSI report comprises: For mapping to the broadband portion of CSI Part 2: The first broadband WB CQI used for the second TB among multiple CQIs, the first LI among multiple LIs, and the first PMI broadband information field among multiple PMIs. The first PMI broadband information field among multiple PMIs . The second WB CQI used for the second TB among multiple CQIs, the second LI among multiple LIs, and the second PMI broadband information field among multiple PMIs. The second PMI broadband information field in one or more PMIs , in this order.

22. The method of claim 19, wherein the mapping order of one or more CSI fields in the CSI report comprises: For the portion mapped to the second subband of CSI: For all even-numbered subbands arranged in ascending order of subband number, the differential CQI for the i-th subband of the second transport block TB is followed by the i-th PMI information field, where i ranges from 1 to L; followed by For all odd-numbered subbands arranged in ascending order of subband number, the i-th subband differential CQI is used in the second transport block TB, followed by the i-th PMI information field, where the value of i ranges from 1 to L.

23. The method of claim 15, wherein the second part comprises CSI second part group 0, CSI second part group 1, and CSI second part group 2.

24. The method of claim 23, wherein the mapping order of one or more CSI fields in the CSI report comprises: For mapping to CSI Part 2 Group 0: The i-th broadband CQI, the i-th LI, and the i-th PMI broadband information fields The i-th PMI broadband information field , where i ranges from 1 to L.

25. The method of claim 23, wherein the mapping order of one or more CSI fields in the CSI report comprises: For mapping to CSI Part 2 Group 1: For even-numbered subbands arranged in ascending order, the differential CQI and PMI broadband information fields of the i-th subband in the second transmission block are used. Where i takes values ​​from 1 to L, followed by For odd-numbered subbands arranged in ascending order, the differential CQI and PMI broadband information fields of the i-th subband in the second transport block are used. , where i ranges from 1 to L.

26. The method of claim 23, wherein the mapping order of one or more CSI fields in the CSI report comprises: For mapping to CSI Part 2 Group 2: The PMI field of the i-th sub-band The remaining part, where i ranges from 1 to L.

27. The method of any one of claims 1 to 26, wherein the report is made using the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH).

28. The method of claim 10, wherein the report comprises at least two parts, wherein the format of the at least two parts is defined according to the physical channel used to transmit the report.

29. The method of claim 13, wherein the at least two parts comprise a first part and a second part, and wherein the physical channel for transmitting the report comprises an uplink control channel or an uplink shared channel.

30. The method of claim 1, wherein the report is transmitted according to a priority value, the priority value being determined as follows: in, y is a variable depending on the physical channel through which the report is transmitted, k is a variable depending on the report type, c is a variable depending on the serving cell index, and s is a variable depending on the configured identifier used in the report. and The values ​​are configured by the network device, wherein the report includes L groups of channel quality indicators, precoding matrix indicators, layer indicators, rank indicators, or reference signal resource indicators.

31. The method of claim 30, wherein the report has the same priority as the report on the non-layer 1 reference signal received power or the layer 1 signal-to-interference-plus-noise ratio report.

32. The method of claim 30, wherein the report has a different priority than the report on the non-layer 1 reference signal received power or the layer 1 signal-to-interference-plus-noise ratio report.

33. The method of any one of claims 1 to 32, wherein k = 0, 1 or 2.

34. An apparatus for wireless communication, comprising at least one processor configured to perform the method of any one of claims 1 to 33.

35. A computer storage medium having code stored thereon, said code, when executed by at least one processor, causing said at least one processor to perform the functions of claims 1 to 33 above.

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