Abstract
Embodiments of the present invention provide a communication method for a carrier aggregation system. The communication method includes receiving physical downlink share channel PDSCH information sent by a base station through a subframe n of a secondary cell. If a subframe n of a primary cell is a downlink subframe, an ACK/NACK of the sent PDSCH information is fed back on a subframe m or a subframe p of the primary cell.
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4G | 26/10/2022 | ISLD-202210-036 | HUAWEI |
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CN102651680A | 4G | 28/09/2012 | ISLD-201210-006 | HUAWEI | Yes | Basis Patent | ||||
CN102651680A | 4G | 26/10/2022 | ISLD-202210-036 | HUAWEI |
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Product
Use Cases
Services
Claim
1. A communication method for carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
receiving, by a user equipment (UE), downlink information from a base station through a subframe n of a secondary cell; and feeding back, by the UE, an ACK/NACK of the downlink information on a subframe m of a primary cell; wherein n and m are subframe indexes; wherein a subframe n of the primary cell comprises a downlink subframe; and wherein an index value of the subframe m of the primary cell is equal to an index value of an uplink subframe which is determined according to an ACK/NACK timing relationship to which the subframe n of the primary cell corresponds.
2. The communication method according to claim 1, wherein the downlink information is physical downlink shared channel (PDSCH) information.
3. The communication method according to claim 2, further comprising:
receiving, by the UE, physical downlink control channel (PDCCH) information sent by the base station through the subframe n of the primary cell, wherein the PDCCH information is used to schedule the PDSCH information.
4. The communication method according to claim 1, wherein when the primary cell is in UL-DL configuration 2, the ACK/NACK timing relationship comprises an uplink subframe 2 being used to feed back an uplink ACK/NACK of downlink subframes 4, 5, 6 and 8.
5. The communication method according to claim 1, wherein when the primary cell is in UL-DL configuration 2, the ACK/NACK timing relationship comprises an uplink subframe 7 being used to feed back an uplink ACK/NACK of downlink subframes 0, 1, 3 and 9.
6. The communication method according to claim 5, wherein when the primary cell is in UL-DL configuration 2, the ACK/NACK timing relationship comprises an uplink subframe 2 being used to feed back an uplink ACK/NACK of downlink subframes 4, 5, 6 and 8.
7. A user equipment supporting carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
a receiver, configured to receive downlink information sent by a base station through a subframe n of a secondary cell; and a processor, configured to feed back an ACK/NACK of the downlink information on a subframe m of a primary cell; wherein n and m are subframe indexes; wherein a subframe n of the primary cell comprises a downlink subframe; and wherein an index value of the subframe m of the primary cell is equal to an index value of an uplink subframe which is determined according to an ACK/NACK timing relationship to which the subframe n of the primary cell corresponds.
8. The user equipment according to claim 7, wherein the downlink information is physical downlink shared channel (PDSCH) information.
9. The user equipment according to claim 8, wherein the receiver is further configured to receive physical downlink control channel (PDCCH) information sent by the base station through the subframe n of the primary cell, wherein the PDCCH information is used to schedule the PDSCH information.
10. The user equipment according to claim 7, wherein when the primary cell is in UL-DL configuration 2, the ACK/NACK timing relationship comprises an uplink subframe 2 being used to feed back an uplink ACK/NACK of downlink subframes 4, 5, 6 and 8.
11. The user equipment according to claim 7, wherein when the primary cell is in UL-DL configuration 2, the ACK/NACK timing relationship comprises an uplink subframe 7 being used to feed back an uplink ACK/NACK of downlink subframes 0, 1, 3 and 9.
12. The user equipment according to claim 11, wherein when the primary cell is in UL-DL configuration 2, the ACK/NACK timing relationship comprises an uplink subframe 2 being used to feed back an uplink ACK/NACK of downlink subframes 4, 5, 6 and 8.
13. A user equipment supporting carrier aggregation of time division duplexing (TDD) and frequency division duplexing (FDD), comprising:
a receiver, configured to receive downlink information sent by a base station through a subframe n of a secondary cell; and a processor, configured to feed back an ACK/NACK of the downlink information on a preset uplink subframe of a primary cell; wherein a subframe n of the primary cell is an uplink subframe; wherein a subframe p of the primary cell is a downlink subframe; wherein n and p are subframe indexes; and wherein the index value of the subframe p of the primary cell is equal to an index value of an uplink subframe which is determined according to an ACK/NACK timing relationship to which the subframe n of the secondary cell corresponds.
14. The user equipment according to claim 13, wherein the downlink information is physical downlink shared channel (PDSCH) information.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.