Abstract
A new uplink control channel capability is introduced to enable a mobile terminal to simultaneously report multiple packet receipt status bits and channel-condition bits. In an example embodiment implemented in a mobile terminal the mobile terminal first determines that channel-state information and hybrid-ARQ ACK/NACK bits corresponding to a plurality of downlink subframes or a plurality of downlink carriers or both are scheduled for transmission in an uplink subframe. The mobile terminal then determines whether the number of the hybrid-ARQ ACK/NACK bits is less than or equal to a threshold number. If so the mobile terminal transmits both the channel-state information and the hybrid-ARQ ACK/NACK bits in physical control channel resources of the first uplink subframe on a single carrier; otherwise the CSI is dropped and the hybrid-ARQ ACK/NACK bits is sent. In some embodiments the number of the hybrid-ARQ ACK/NACK bits considered in the previously summarized technique represents a number of ACK/NACK bits after ACK/NACK bundling.
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
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| 5G | 18/05/2017 | ISLD-201705-007 | ERICSSON INC |
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Specification Information
Specification Information
Technologies
Family Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Resource configuration Channel Status Information(CSI) Reporting
Product
User Equipment (UE/Terminal)Base Station (eNB/gNB)
Use Cases
Wireless communication
Services
UCI transmission
Claim
1. A method in a mobile terminal for simultaneous reporting of channel-state 5 information and hybrid-ARQ ACK/NACK information in uplink subframes, the method comprising: determining that first channel-state information and first hybrid-ARQ ACK/NACK bits corresponding to a plurality of downlink subframes or a plurality of downlink carriers, or both, are scheduled for transmission in 10 a first uplink subframe; determining whether the number of the first hybrid-ARQ ACK/NACK bits is less than or equal to a threshold number; transmitting both the first channel-state information and the first hybrid-ARQ ACK/NACK bits in physical control channel resources of the first uplink 15 subframe, on a single carrier, in response to determining that the number of hybrid-ARQ ACK/NACK bits to be transmitted in the first uplink subframe is less than or equal to the threshold number; and dropping the first channel state information and transmitting the first hybrid- ARQ ACK/NACK bits in physical control channel resources of the first 20 uplink subframe, on a single carrier, in response to determining that the number of hybrid-ARQ ACK/NACK bits to be transmitted in the first uplink subframe is not less than or equal to the threshold number.
2. The method of claim 1, wherein the number of the first hybrid-ARQ ACK/NACK 25 bits represents a number of ACK/NACK bits after ACK/NACK bundling.
3. The method of claim 1 or 2, wherein the threshold number depends on the number of first channel-state information bits scheduled for transmission in the first uplink subframe. 6329952_3.doc
4. The method of claim 1, further comprising: determining that second channel-state information and a second hybrid-ARQ ACK/NACK bits corresponding to a plurality of downlink carriers are scheduled for transmission in a second uplink subframe; 5 determining whether the number of the second hybrid-ARQ ACK/NACK bits is less than or equal to the threshold number; bundling the second hybrid-ARQ ACK/NACK bits to produce a number of bundled ACK/NACK bits that is less than or equal to the threshold number, in response to determining that the number of hybrid-ARQ 10 ACK/NACK bits to be transmitted in the second uplink subframe is not less than or equal to the threshold number; and transmitting both the second channel-state information and the bundled ACK/NACK bits in physical control channel resources of the second uplink subframe, on a single carrier.
5. The method of any one of claims 1 to 4, wherein the threshold number is 10.
6. The method of any one of claims 1 to 5, wherein the first hybrid-ARQ ACK/NACK bits and the first channel-state information are transmitted using a Physical Uplink 20 Control Channel (PUCCH) format 3 resource in a Long-Term Evolution (LTE) wireless system.
7. The method of any one of claims 1 to 6, further comprising, before transmitting both the first channel-state information and the first hybrid-ARQ ACK/NACK bits: 25 encoding the hybrid-ARQ ACK/NACK bits using a first encoder and separately encoding the channel-state information bits using a second encoder; interleaving the encoded hybrid-ARQ ACK/NACK bits and the encoded channel-state information bits. 6329952_3.doc
8. A method in a base station for processing received reports of channel-state information and hybrid-ARQ ACK/NACK information, the method comprising: receiving a plurality of uplink subframes, each uplink subframe comprising one or more physical control channel resources carrying control channel 5 information encoded by mobile terminals; for each of the physical control channel resources, determining whether a number of expected hybrid-ARQ ACK/NACK bits is less than or equal to a threshold number; decoding both channel-state information and hybrid-ARQ ACK/NACK bits from 10 each physical control channel resource for which the number of expected hybrid-ARQ ACK/NACK bits is less than or equal to the threshold number; and decoding only hybrid-ARQ ACK/NACK bits from each physical control channel resource for which the number of expected hybrid-ARQ ACK/NACK bits 15 is not less than or equal to the threshold number.
9. The method of claim 8, wherein the threshold number depends on a number of expected channel-state information bits. 2010. The method of claim 8, further comprising: decoding both channel-state information and bundled hybrid-ARQ ACK/NACK bits from each physical control channel resource for which the number of expected hybrid-ARQ ACK/NACK bits is not less than or equal to the threshold number; and 25 unbundling the bundled hybrid-ARQ ACK/NACK bits
11. The method of any one of claims 8 to 10, wherein the threshold number is 10. 6329952_3.doc12. The method of any one of claims 8 to 11, wherein decoding both channel-state information and hybrid-ARQ ACK/NACK bits comprises: de-interleaving encoded bits from the physical control channel resource, to obtain encoded hybrid-ARQ ACK/NACK bits and separate encoded 5 channel-state information bits; and decoding the hybrid-ARQ ACK/NACK bits using a first decoder and separately decoding the channel-state information bits using a second decoder
13. The method of any one of claims 1 to 12, further comprising first determining that 10 the mobile terminal has been configured, via Radio Resource Control signaling, for simultaneous reporting of channel-state information and hybrid-ARQ ACK/NACK information
14. A mobile terminal configured for simultaneous reporting of channel-state 15 information and hybrid-ARQ ACK/NACK information in uplink subframes, the mobile terminal comprising a receiver circuit, a transmitter circuit, and a processing circuit, wherein the processing circuit is adapted to: determine that first channel-state information and first hybrid-ARQ ACK/NACK bits corresponding to a plurality of downlink subframes or a plurality of 20 downlink carriers, or both, are scheduled for transmission in a first uplink subframe; determine whether the number of the first hybrid-ARQ ACK/NACK bits is less than or equal to a threshold number; send both the first channel-state information and the first hybrid-ARQ 25 ACK/NACK bits to a base station, via the transmitter circuit, in physical control channel resources of the first uplink subframe, on a single carrier, in response to determining that the number of hybrid-ARQ ACK/NACK bits to be transmitted in the first uplink subframe is less than or equal to the threshold number; and 30 drop the first channel state information and send the first hybrid-ARQ ACK/NACK bits to the base station, via the transmitter circuit, in 6329952_3.doc physical control channel resources of the first uplink subframe, on a single carrier, in response to determining that the number of hybrid- ARQ ACK/NACK bits to be transmitted in the first uplink subframe is not less than or equal to the threshold number
15. The mobile terminal of claim 14, wherein the number of the first hybrid-ARQ ACK/NACK bits represents a number of ACK/NACK bits after ACK/NACK bundling
16. The mobile terminal of claim 14, wherein the processing circuit is further adapted 10 to: determine that second channel-state information and a second hybrid-ARQ ACK/NACK bits corresponding to a plurality of downlink subframes or a plurality of downlink carriers are scheduled for transmission in a second uplink subframe; 15 determine whether the number of the second hybrid-ARQ ACK/NACK bits is less than or equal to the threshold number; bundle the second hybrid-ARQ ACK/NACK bits to produce a number of bundled ACK/NACK bits that is less than or equal to the threshold number, in response to determining that the number of hybrid-ARQ 20 ACK/NACK bits to be transmitted in the second uplink subframe is not less than or equal to the threshold number; and send both the second channel-state information and the bundled ACK/NACK bits to the base station, via the transmitter, in physical control channel resources of the second uplink subframe, on a single carrier
17. The mobile terminal of any one of claims 14 to 16, wherein the threshold number is 10
18. The mobile terminal of any one of claims 14 to 17, wherein the first hybrid-ARQ 30 ACK/NACK bits and the first channel-state information are sent using a Physical 6329952_3.doc Uplink Control Channel (PUCCH) format 3 resource in a Long-Term Evolution (LTE) wireless system.19. The mobile terminal of any one of claims 14 to 18, wherein the processing circuit 5 is further adapted to, before sending both the first channel-state information and the first hybrid-ARQ ACK/NACK bits to the base station: encode the hybrid-ARQ ACK/NACK bits using a first encoder and separately encoding the channel-state information bits using a second encoder; 10 interleave the encoded hybrid-ARQ ACK/NACK bits and the encoded channel- state information bits.
20. A base station configured to process received reports of channel-state information and hybrid-ARQ ACK/NACK information, the base station comprising a 15 transmitter circuit, a receiver circuit, and a processing circuit, wherein the processing circuit is configured to: receive, via the receiver circuit a plurality of uplink subframes, each uplink subframe comprising one or more physical control channel resources carrying control channel information encoded by mobile terminals; 20 determine, for each of the physical control channel resources, whether a number of expected hybrid-ARQ ACK/NACK bits is less than or equal to a threshold number; decode both channel-state information and hybrid-ARQ ACK/NACK bits from each physical control channel resource for which the number of 25 expected hybrid-ARQ ACK/NACK bits is less than or equal to the threshold number; and decode only hybrid-ARQ ACK/NACK bits from each physical control channel resource for which the number of expected hybrid-ARQ ACK/NACK bits is not less than or equal to the threshold number. 6329952_3.doc
21. The base station of claim 20, wherein the processing circuit is further adapted to: decode both channel-state information and bundled hybrid-ARQ ACK/NACK bits from each physical control channel resource for which the number of expected hybrid-ARQ ACK/NACK bits is not less than or equal to the 5 threshold number; and unbundle the bundled hybrid-ARQ ACK/NACK bits.
22. The base station of any one of claims 20 to 21, wherein the threshold number is
23. The base station of any one of claims 20 to 22, wherein the processing circuit is adapted to decode both channel-state information and hybrid-ARQ ACK/NACK bits de-interleaving encoded bits from the physical control channel resource, to 15 obtain encoded hybrid-ARQ ACK/NACK bits and separate encoded channel-state information bits; and decoding the hybrid-ARQ ACK/NACK bits using a first decoder and separately decoding the channel-state information bits using a second decoder. 20
24. The mobile terminal of claim 14, wherein the processing circuit comprises: an hybrid-ARQ processing unit adapted to determine that the first channel- state information and the first hybrid-ARQ ACK/NACK bits corresponding to the plurality of downlink carriers are scheduled for transmission in the first uplink subframe, and to determine whether the 25 number of the first hybrid-ARQ ACK/NACK bits is less than or equal to the threshold number; and an uplink control channel encoding unit adapted to send both the first channel- state information and the first hybrid-ARQ ACK/NACK bits in physical control channel resources of the first uplink subframe, on a single 30 carrier, in response to determining that the number of hybrid-ARQ ACK/NACK bits to be transmitted in the first uplink subframe is less 6329952_3.doc than or equal to the threshold number; and further adapted to drop the first channel state information and send the first hybrid-ARQ ACK/NACK bits to the base station, via the transmitter circuit, in physical control channel resources of the first uplink subframe, on a 5 single carrier, in response to determining that the number of hybrid- ARQ ACK/NACK bits to be transmitted in the first uplink subframe is not less than or equal to the threshold number.
25. A method in a mobile terminal for simultaneous reporting of channel-state 10 information and hybrid-ARQ ACK/NACK information in uplink subframes, the method being substantially as hereinbefore described with reference to the accompanying drawings.
26. A method in a base station for processing received reports of channel-state 15 information and hybrid-ARQ ACK/NACK information, the method being substantially as hereinbefore described with reference to the accompanying drawings.
27. A mobile terminal configured for simultaneous reporting of channel-state information and hybrid-ARQ ACK/NACK information in uplink subframes, the mobile 20 terminal comprising a receiver circuit, a transmitter circuit, and a processing circuit, the mobile terminal being substantially as hereinbefore described with reference to the accompanying drawings.
28. A base station configured to process received reports of channel-state 25 information and hybrid-ARQ ACK/NACK information, the base station comprising a transmitter circuit, a receiver circuit, and a processing circuit, the base station being substantially as hereinbefore described with reference to the accompanying drawings. 6329952_3.doc']
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