Multibeam precoder based channel state information
Uložené v:
| Názov: | Multibeam precoder based channel state information |
|---|---|
| Patent Number: | 11936,442 |
| Dátum vydania: | March 19, 2024 |
| Appl. No: | 17/599151 |
| Application Filed: | March 13, 2020 |
| Abstrakt: | A method (1400) performed by a wireless device (200) for multibeam precoder based channel state information, CSI, feedback reporting is provided, A CSI report comprises a first part, CSI Part 1, and a second part, CSI Part 2. The method (1400) comprises generating (1401) the CSI report, wherein the CSI Part 1 comprises an indication of a number of non-zero coefficients, and a payload size of the indication of the number of non-zero coefficients is dependent on a rank restriction of the wireless device. The method also comprising transmitting (1402) the CSI report to a network node, wherein one or more of a payload of the CSI Part 2 and a payload size of the CSI Part 2 is based on the number of non-zero coefficients indicated in the CSI Part 1. |
| Inventors: | Telefonaktiebolaget LM Ericsson (PUBL) (Stockholm, SE) |
| Assignees: | TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (Stockholm, SE) |
| Claim: | 1. A method performed by a wireless device for multibeam precoder based channel state information, CSI, feedback reporting, wherein a CSI report comprises a first part, CSI Part 1, and a second part, CSI Part 2, the method comprising: generating the CSI report, wherein the CSI Part 1 comprises an indication of a number of non-zero coefficients, and a payload size of the indication of the number of non-zero coefficients is dependent on a rank restriction of the wireless device; and transmitting the CSI report to a network node, wherein one or more of a payload of the CSI Part 2 and a payload size of the CSI Part 2 is based on the number of non-zero coefficients indicated in the CSI Part 1. |
| Claim: | 2. The method of claim 1 , wherein the indication of the number of non-zero coefficients comprises an indicator of a number of non-zero coefficients for each layer and the number of non-zero coefficients for each layer is indicated with a layer-wise separate indicator in CSI Part 1. |
| Claim: | 3. The method of claim 1 , wherein the payload size of the indication of the number of non-zero coefficients is constant irrespective of a rank selection by the wireless device. |
| Claim: | 4. The method of claim 1 , wherein the CSI Part 1 includes an explicit rank indication indicating the rank. |
| Claim: | 5. The method of claim 1 , wherein the CSI Part 1 indicates the rank implicitly based on the indication of the number of non-zero coefficients. |
| Claim: | 6. A method performed by a network node for receiving multibeam precoder based channel state information, CSI, feedback, wherein a CSI report comprises a first part, CSI Part 1, and a second part, CSI Part 2, the method comprising: receiving from a wireless device the CSI Part 1, wherein the CSI Part 1 comprises an indication of a number of non-zero coefficients, and a payload size of the indication of the number of non-zero coefficients is dependent on a rank restriction of the wireless device; and determining, based on the indication of the number of non-zero coefficients, one or more of a CSI payload of the CSI Part 2 and a CSI payload size for the CSI Part 2. |
| Claim: | 7. The method of claim 6 , wherein the indication of the number of non-zero coefficients comprises an indicator of a number of non-zero coefficients for each layer and the number of non-zero coefficients for each layer is indicated with a layer-wise separate indicator in the CSI Part 1. |
| Claim: | 8. The method of claim 6 , wherein a payload size of the indication of the number of non-zero coefficients is constant irrespective of a rank selection by the wireless device. |
| Claim: | 9. The method of claim 6 , wherein the CSI Part 1 includes an explicit rank indication indicating the rank. |
| Claim: | 10. The method of claim 6 , wherein the CSI Part 1 indicates the rank implicitly based on the indication of the number of non-zero coefficients. |
| Claim: | 11. A wireless device, the wireless device comprising processing circuitry and power supply circuitry configured to supply power to the wireless device, the processing circuitry configured to: generate a CSI report for multibeam precoder based channel state information, CSI, feedback reporting, wherein the CSI report comprises a first part, CSI Part 1, and a second part, CSI Part 2, and wherein the CSI Part 1 comprises an indication of a number of non-zero coefficients, and a payload size of the indication of the number of non-zero coefficients is dependent on a rank restriction; and transmit the CSI report to a network node, wherein one or more of a payload of the CSI Part 2 and a payload size of the CSI Part 2 is based on the number of non-zero coefficients indicated in the CSI Part 1. |
| Claim: | 12. The wireless device of claim 11 , wherein the indication of the number of non-zero coefficients comprises an indicator of a number of non-zero coefficients for each layer and the number of non-zero coefficients for each layer is indicated with a layer-wise separate indicator in CSI Part 1. |
| Claim: | 13. The wireless device of claim 11 , wherein a payload size of the indication of the number of non-zero coefficients is constant irrespective of a rank selection by the wireless device. |
| Claim: | 14. The wireless device of claim 11 , wherein the CSI Part 1 includes an explicit rank indication indicating the rank. |
| Claim: | 15. The wireless device of claim 11 , wherein the CSI Part 1 indicates the rank implicitly based on the indication of the number of non-zero coefficients. |
| Claim: | 16. A network node, the network node comprising processing circuitry and power supply circuitry configured to supply power to the network node, the processing circuitry configured to: receive a multibeam precoder based channel state information, CSI, feedback report from a wireless device, the CSI report comprising a first part, CSI Part 1, and a second part, CSI Part 2, wherein the CSI Part 1 comprises an indication of a number of non-zero coefficients, and a payload size of the indication of the number of non-zero coefficients is dependent on a rank restriction of the wireless device; and determine, based on the indication of the number of non-zero coefficients, one or more of a CSI payload of the CSI Part 2 and a CSI payload size for the CSI Part 2. |
| Claim: | 17. The network node of claim 16 , wherein the indication of the number of non-zero coefficients comprises an indicator of the number of non-zero coefficients for each layer and the number of non-zero coefficients for each layer is indicated with a layer-wise separate indicator in the CSI Part 1. |
| Claim: | 18. The network node of claim 16 , wherein the payload size of the indication of the number of non-zero coefficients is constant irrespective of a rank selection by the wireless device. |
| Claim: | 19. The network node of claim 16 , wherein the CSI Part 1 includes an explicit rank indication indicating the rank. |
| Claim: | 20. The network node of claim 16 , wherein the CSI Part 1 indicates the rank implicitly based on the indication of the number of non-zero coefficients. |
| Patent References Cited: | 20160337056 November 2016 Frenne et al. 20180007668 January 2018 Yum et al. 20190052397 February 2019 Onggosanusi et al. 20190058517 February 2019 Kang 20190081676 March 2019 Wei et al. 20190215897 July 2019 Babaei 20210376887 December 2021 Wu 20220149908 May 2022 Gao 20220149909 May 2022 Liu 20220247459 August 2022 Faxer 3949146 October 2023 |
| Other References: | PCT Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration issued for International application No. PCT/EP2020/056992—dated May 12, 2020. cited by applicant 3GPP TSG RAN WG1 Meeting Ad-Hoc Meeting 1901; Taipei, Taiwan; Source: Ericsson; Title: On CSI enhancements for MU-MIMO (R1-1900757)—Jan. 21-25, 2019. cited by applicant 3GPP TSG RAN WG1 Meeting #96; Athens, Greece; Source: Huawei, HiSilicon; Title: Discussion on CSI enhancement (R1-1901566)—Feb. 25-Mar. 1, 2019. cited by applicant 3GPP TSG RAN WG1 Meeting #96; Athens, Greece; Source: ZTE; Title: CSI Enhancement for MU-MIMO Support (R1-1901633)—Feb. 25-Mar. 1, 2019. cited by applicant 3GPP TSG RAN WG1 Meeting #96; Athens, Greece; Source: Qualcomm Incorporated; Title: CSI Enhancement for MU-MIMO Support (R1-1903042)—Feb. 25-Mar. 1, 2019. cited by applicant 3GPP TSG RAN WG1 Meeting RAN1#96-bis; Xi'an, China; Source: Ericsson; Title: On CSI enhancements for MU-MIMO (R1-1905110)—Apr. 8-12, 2019. cited by applicant Office Action issued for Korean PatentApplication No. 10-2021-7035366—dated Jul. 25, 2023. cited by applicant 3GPP TSG RAN WG1 Meeting #96; Athens, Greece, Feb. 25-Mar. 1, 2019; Source: ZTE; Title: CSI Enhancement for MU-MIMO Support; Agenda Item: 7.2.8.1 (R1-1903343). cited by applicant Search Report issued for Chinese Patent Application Serial No. 2020800399744—dated Nov. 29, 2023. cited by applicant Official Action issued for Chinese Patent Application Serial No. 202080039974.4—dated Nov. 30, 2023. cited by applicant |
| Primary Examiner: | Joseph, Jaison |
| Attorney, Agent or Firm: | BAKER BOTTS L.L.P. |
| Prístupové číslo: | edspgr.11936442 |
| Databáza: | USPTO Patent Grants |
| Abstrakt: | A method (1400) performed by a wireless device (200) for multibeam precoder based channel state information, CSI, feedback reporting is provided, A CSI report comprises a first part, CSI Part 1, and a second part, CSI Part 2. The method (1400) comprises generating (1401) the CSI report, wherein the CSI Part 1 comprises an indication of a number of non-zero coefficients, and a payload size of the indication of the number of non-zero coefficients is dependent on a rank restriction of the wireless device. The method also comprising transmitting (1402) the CSI report to a network node, wherein one or more of a payload of the CSI Part 2 and a payload size of the CSI Part 2 is based on the number of non-zero coefficients indicated in the CSI Part 1. |
|---|