IP Library › Granted Patent US 10,404,404

Granted Patent B2

US 10,404,404 · App. 16/299,764 · Granted Sep 3, 2019

Activation and deactivation of semi-persistent CSI reporting

Inventors: Shiwei Gao (Nepean, CA); Sebastian Faxér (Järfälla, SE); Siva Muruganathan (Stittsville, CA)

Assignee: Telefonaktiebolaget LM Ericsson (publ)

H04L1/0027 H04B7/0626 H04L1/0003 H04L1/0026 H04L1/1812 H04L5/0053 H04W72/0406 H04W72/1205

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Quick Facts

Patent No.: US 10,404,404
App. No.: 16/299,764
Granted: Sep 3, 2019
Kind: B2

External Links

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Abstract

Systems and methods for validating a control message for activation or deactivation of Semi-Persistent Channel State Information (SP-CSI) reporting in a wireless communication system are disclosed. In some embodiments, a method performed by a wireless device for validating a control message for activation or deactivation of SP-CSI reporting in a wireless communication system comprises receiving, from a network node, a control message for activation or deactivation of the SP-CSI reporting. The method further comprises making, based on the control message, a determination as to whether to activate the SP-CSI reporting or to deactivate the SP-CSI reporting and activating or deactivating the SP-CSI reporting in accordance with the determination. In this manner, the wireless device is enabled to distinguish between a control message activating SP-SCI reporting and a control message deactivating SP-SCI reporting.

Claims (129)

1. A method for a user equipment for Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the method comprising:

receiving a control message for activation or deactivation of the SP-CSI reporting,

wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the wireless device; and

the control message comprises information that indicates whether the control message is for activation of the SP-CSI reporting or for deactivation of the SP-CSI reporting, wherein the information comprises bit values configured in one or more bit fields of the control message and the one or more bit fields comprise one or more bit fields defined for the purpose of providing a new data indicator and/or a redundancy version;

making, based on the information comprised in the control message, a determination as to whether to activate the SP-CSI reporting or to deactivate the SP-CSI reporting; and

activating or deactivating the SP-CSI reporting in accordance with the determination.

2. The method of claim 1 wherein the control message comprises downlink control information carried on a physical downlink control channel.

3. The method of claim 1 wherein the one or more bit fields of the control message are defined for other purposes but are reused.

4. A method for a user equipment for Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the method comprising:

receiving a control message for activation or deactivation of the SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the wireless device; and

making, based on the information comprised in the control message, a determination as to whether to activate the SP-CSI reporting or to deactivate the SP-CSI reporting; and

activating or deactivating the SP-CSI reporting in accordance with the determination, wherein, when activating the SP-CSI reporting, the one or more bits fields for activating the SP-CSI reporting comprise any one or more of the following bit fields:

a field defined for the purpose of communicating a New Data Indicator;

a field defined for the purpose of communicating a Redundancy Version;

a field defined for the purpose of communicating a transmission power control command for a physical uplink shared channel; and

a field defined for the purpose of communicating a Hybrid Automatic Repeat Request, HARQ process number.

5. The method of claim 4 wherein the control message comprises downlink control information carried on a physical downlink control channel.

6. A method for a user equipment for Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the method comprising:

receiving a control message for activation or deactivation of the SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the wireless device; and

making, based on the information comprised in the control message, a determination as to whether to activate the SP-CSI reporting or to deactivate the SP-CSI reporting; and

activating or deactivating the SP-CSI reporting in accordance with the determination, wherein, when deactivating the SP-CSI reporting, the one or more bit fields for deactivating the SP-CSI reporting comprise any one or more of the following bit fields:

a field defined for the purpose of communicating a New Data Indicator;

a field defined for the purpose of communicating a Redundancy Version;

a field defined for the purpose of communicating a transmission power control command for a physical uplink shared channel;

a field defined for the purpose of communicating a Hybrid Automatic Repeat Request, HARQ process number;

a field defined for the purpose of communicating a Modulation and Coding Scheme, MCS;

a field defined for the purpose of communicating a frequency domain resource assignment; and

a field defined for the purpose of communicating a time domain resource assignment.

7. The method of claim 6 wherein the control message comprises downlink control information carried on a physical downlink control channel.

8. A user equipment for Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the user equipment comprising:

one or more transmitters and one or more receivers; and

processing circuitry associated with the one or more transmitters and the one or more receivers, the processing circuitry configured to cause the user equipment to:

receive a control message for activation or deactivation of the SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the user equipment; and

the control message comprises information that indicates whether the control message is for activation of the user equipment SP-CSI reporting or for deactivation of the user equipment SP-CSI reporting, wherein the information comprises bit values configured in one or more bit fields of the control message and the one or more bit fields comprise one or more bit fields defined for the purpose of providing a new data indicator and/or a redundancy version;

make, based on the information comprised in the control message, a determination as to whether to activate the SP-CSI reporting or to deactivate the SP-CSI reporting; and

activate or deactivate the SP-CSI reporting in accordance with the determination.

9. The user equipment SP-CSI reporting of claim 8 wherein the control message comprises downlink control information carried on a physical downlink control channel.

10. A method for a base station for enabling activation or deactivation of Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the method comprising:

sending, to a wireless device, a control message for activation or deactivation of SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the wireless device; and

11. The method of claim 10 wherein the control message comprises downlink control information carried on a physical downlink control channel.

12. The method of claim 10 wherein the one or more bit fields of the control message are defined for other purposes but are reused.

13. A method for a base station for enabling activation or deactivation of Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the method comprising:

sending, to a wireless device, a control message for activation or deactivation of SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the wireless device; and

wherein, when activating the SP-CSI reporting, the one or more bits fields for activating the SP-CSI comprise any one or more of the following bit fields:

a field defined for the purpose of communicating a New Data Indicator;

a field defined for the purpose of communicating a Redundancy Version;

a field defined for the purpose of communicating a transmission power control command for a physical uplink shared channel; and

a field defined for the purpose of communicating a Hybrid Automatic Repeat Request, HARQ process number.

14. The method of claim 13 wherein the control message comprises downlink control information carried on a physical downlink control channel.

15. A method for a base station for enabling activation or deactivation of Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the method comprising:

sending, to a wireless device, a control message for activation or deactivation of SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the wireless device; and

wherein, when deactivating the SP-CSI reporting, the one or more bit fields for deactivating the SP-CSI reporting comprise any one or more of the following bit fields:

a field defined for the purpose of communicating a New Data Indicator;

a field defined for the purpose of communicating a Redundancy Version;

a field defined for the purpose of communicating a transmission power control command for a physical uplink shared channel;

a field defined for the purpose of communicating a Hybrid Automatic Repeat Request, HARQ process number;

a field defined for the purpose of communicating a Modulation and Coding Scheme, MCS;

a field defined for the purpose of communicating a frequency domain resource assignment; and

a field defined for the purpose of communicating a time domain resource assignment.

16. The method of claim 15 wherein the control message comprises downlink control information carried on a physical downlink control channel.

17. A base station for enabling activation or deactivation of Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the base station comprising:

processing circuitry configured to cause the base station to send, to a wireless device, a control message for activation or deactivation of SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the wireless device; and

18. The base station of claim 17 wherein the control message comprises downlink control information carried on a physical downlink control channel.

19. A user equipment for Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the user equipment comprising:

one or more transmitters and one or more receivers; and

processing circuitry associated with the one or more transmitters and the one or more receivers, the processing circuitry configured to cause the user equipment to:

receive a control message for activation or deactivation of the SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the user equipment; and

make, based on the information comprised in the control message, a determination as to whether to activate the SP-CSI reporting or to deactivate the SP-CSI reporting; and

activate or deactivate the SP-CSI reporting in accordance with the determination, wherein, when activating the SP-CSI reporting, the one or more bits fields for activating the SP-CSI reporting comprise any one or more of the following bit fields:

a field defined for the purpose of communicating a New Data Indicator;

a field defined for the purpose of communicating a Redundancy Version;

a field defined for the purpose of communicating a transmission power control command for a physical uplink shared channel; and

a field defined for the purpose of communicating a Hybrid Automatic Repeat Request, HARQ, process number.

20. The user equipment of claim 19 wherein the control message comprises downlink control information carried on a physical downlink control channel.

21. A user equipment for Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the user equipment comprising:

one or more transmitters and one or more receivers; and

processing circuitry associated with the one or more transmitters and the one or more receivers, the processing circuitry configured to cause the user equipment to:

receive a control message for activation or deactivation of the SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the user equipment; and

make, based on the information comprised in the control message, a determination as to whether to activate the SP-CSI reporting or to deactivate the SP-CSI reporting; and

activate or deactivate the SP-CSI reporting in accordance with the determination, wherein, when deactivating the SP-CSI reporting, the one or more bit fields for deactivating the SP-CSI reporting comprise any one or more of the following bit fields:

a field defined for the purpose of communicating a New Data Indicator;

a field defined for the purpose of communicating a Redundancy Version;

a field defined for the purpose of communicating a transmission power control command for a physical uplink shared channel;

a field defined for the purpose of communicating a Hybrid Automatic Repeat Request, HARQ, process number;

a field defined for the purpose of communicating a Modulation and Coding Scheme, MCS;

a field defined for the purpose of communicating a frequency domain resource assignment; and

a field defined for the purpose of communicating a time domain resource assignment.

22. The user equipment of claim 21 wherein the control message comprises downlink control information carried on a physical downlink control channel.

23. A base station for enabling activation or deactivation of Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the base station comprising:

processing circuitry configured to cause the base station to send, to a wireless device, a control message for activation or deactivation of SP-CSI reporting, wherein:

one or more Cyclic Redundancy Check, CRC, bits of the control message is scrambled with a SP-CSI Cell Radio Network Temporary Identifier, SP-CSI-RNTI, of the wireless device; and

wherein, when activating the SP-CSI reporting, the one or more bits fields for activating the SP-CSI reporting comprise any one or more of the following bit fields:

a field defined for the purpose of communicating a New Data Indicator;

a field defined for the purpose of communicating a Redundancy Version;

a field defined for the purpose of communicating a transmission power control command for a physical uplink shared channel; and

a field defined for the purpose of communicating a Hybrid Automatic Repeat Request, HARQ process number.

24. The base station of claim 23 wherein the control message comprises downlink control information carried on a physical downlink control channel.

25. A base station for enabling activation or deactivation of Semi-Persistent Channel State Information, SP-CSI, reporting in a wireless communication system, the base station comprising: