Abstract
The present invention discloses a notification method for a CQI and a modulation and coding scheme. The method includes: learning, by a terminal, a first CQI index according to a first CQI table; sending the first CQI index to a base station; receiving, by the base station, the first CQI index sent by the terminal UE; determining a first MCS index according to the first CQI table, a first MCS table, and the received first CQI index; sending the determined first MCS index to the UE; receiving, by the terminal, the first MCS index sent by the base station; and determining a modulation order and a code block size according to the first MCS table and the received first MCS index; where the first CQI table includes entries in which modulation schemes are higher than 64QAM.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| 4G | 12/06/2018 | ISLD-201803-001 | HUAWEI |
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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 Feedback
Product
User Equipment (UE/Terminal)Base Station (eNB/gNB)
Use Cases
Wireless communication
Services
Transmitting/receiving data in downlink Transmitting/receiving data in uplink
Claim
1. A notification method for a channel quality indicator, CQI, comprising:
acquiring (S101) a first CQI index according to an acquired first CQI table; and sending (S102) the first CQI index to a base station, wherein the first CQI table comprises: multiple entries in which modulation schemes are higher than 64 quadrature amplitude modulation, QAM; and multiple entries in a second CQI table and in which modulation schemes are quadrature phase shift keying, QPSK; and multiple entries that are in the second CQI table and in which modulation schemes are 16QAM; wherein the multiple entries in which the modulation scheme is QPSK are not N entries that are in the second CQI table and in which a modulation scheme is QPSK, corresponding CQI indexes are continuous and highest ones, and corresponding code rates are highest ones, wherein N is a positive integer; wherein modulation schemes in entries in the second CQI table comprise only QPSK, 16QAM, and 64QAM, and a value range of a CQI index in the first CQI table is the same as a value range of a CQI index in the second CQI table; wherein the entry in the first CQI table refers to one modulation scheme, one code rate, and one spectrum efficiency that correspond to each CQI index in the first CQI table, and the entry in the second table refers to one modulation scheme, one code rate, and one spectrum efficiency that correspond to each CQI index in the second CQI table.
2. The method according to claim 1, wherein the at least one entry in the second CQI table and in which the modulation schemes are QPSK comprises:
multiple entries in the second CQI table and in which modulation schemes are QPSK, wherein CQI indices corresponding to the some entries are at equal intervals.
3. The method according to claim 1, wherein the first CQI table further comprises:
multiple entries in the second CQI table and in which a modulation scheme is 64QAM.
4. The method according to claim 3, wherein the multiple entries in the second CQI table and in which the modulation schemes are 64QAM comprises:
multiple entries in the second CQI table and in which modulation schemes are 64QAM, and multiple entries in the second CQI table, except an entry corresponding to a maximum CQI index, of all entries in which modulation schemes are 64QAM.
5. The method according to claim 1, wherein a spectrum efficiency in the second CQI table and in an entry that is corresponding to a minimum CQI index and of the entries in which the modulation schemes are higher than 64QAM in the first CQI table is equal to a spectrum efficiency in an entry that is corresponding to a maximum CQI index and of all entries in which modulation schemes are 64QAM.
6. A notification method for a modulation and coding scheme, MCS, comprising:
receiving (S301) a first channel quality indicator, CQI, index sent by UE, wherein the first CQI index is determined by the UE according to an acquired first CQI table; determining (S302) a first MCS index according to the acquired first CQI table, a first MCS table, and the received first CQI index; and sending (S303) the determined first MCS index to the UE; wherein the first CQI table comprises: multiple entries in which modulation schemes are higher than 64 quadrature amplitude modulation, QAM; and multiple entries in a second CQI table in which modulation schemes are quadrature phase shift keying QPSK, and all entries that are in the second CQI table and in which modulation schemes are 16QAM; wherein the multiple entries in which the modulation schemes are QPSK are not N entries that are in the second CQI table and in which modulation schemes are QPSK, corresponding CQI indexes are continuous and highest ones, and corresponding code rates are highest ones, wherein is a positive integer; wherein modulation schemes in entries in the second CQI table comprise only QPSK, 16QAM, and 64QAM, and a value range of a CQI index in the first CQI table is the same as a value range of a CQI index in the second CQI table; wherein the entry in the first CQI table refers to one modulation scheme, one code rate, and one spectrum efficiency that correspond to each CQI index in the first CQI table, and the entry in the second table refers to one modulation scheme, one code rate, and one spectrum efficiency that correspond to each CQI index in the second CQI table; and the first MCS table comprises: entries in which modulation schemes are higher than 64QAM; and multiple entries in a second MCS table and in which modulation schemes are QPSK; and multiple entries that is in the second MCS table and in which modulation schemes are 16QAM; wherein the multiple entries in which the modulation schemed are QPSK are not K entries that are in the second MCS table and in which modulation schemes are QPSK, corresponding MCS indexes are continuous and highest ones, and corresponding code rates are highest ones, wherein K is a positive integer; wherein modulation schemes in the second MCS table comprise only QPSK, 16QAM, and 64QAM, and a value range of a MCS index in the first MCS table is the same as a value range of a MCS index in the second MCS table; wherein the entry in the first MCS table refers to one modulation scheme and one TBS index that corresponding to each MCS index in the first MCS table, and the entry in the second MCS table refers to one modulation scheme and one TBS index that correspond to each MCS index in the second MCS table.
7. The method according to claim 6, wherein the multiple entries in the second CQI table and in which the modulation schemes are QPSK comprises:
multiple entries in the second CQI table and in which modulation schemes are QPSK, wherein CQI indices corresponding to the multiple entries are at equal intervals.
8. The method according to claim 6, wherein the first CQI table further comprises:
multiple entries in the second CQI table and in which modulation schemes are 64QAM.
9. The method according to claim 8, wherein the multiple entries in the second CQI table and in which the modulation schemes are 64QAM comprises:
multiple entries in the second CQI table and in which modulation schemes are 64QAM, and multiple entries in the second CQI table, except an entry corresponding to a maximum CQI index, of all entries in which modulation schemes are 64QAM.
10. The method according to claim 6, wherein a spectrum efficiency in the second CQI table and in an entry that is corresponding to a minimum CQI index and of the entries in which the modulation schemes are higher than 64QAM in the first CQI table is equal to a spectrum efficiency in an entry that is corresponding to a maximum CQI index and of all entries in which modulation schemes are 64QAM.
11. The method according to claim 6, wherein the determining a first MCS index according to the acquired first CQI table, an acquired first MCS table, and the received first CQI index comprises:
determining a first TBS index and the first MCS index according to an acquired first PRB quantity, the acquired first CQI table, the acquired first MCS table, and the received first CQI index, wherein: the first PRB quantity is a PRB quantity allocated by a base station to the UE, or the first PRB quantity is a maximum integer less than or equal to a product of a PRB quantity allocated to the UE and a specific coefficient; a first TBS table comprises at least one PRB quantity corresponding to each TBS index and a transport block size corresponding to each PRB quantity, wherein the first TBS table is a TBS table corresponding to the first MCS table; and a value range of a TBS index in the first TBS table is 0 to B, wherein B is a positive integer greater than or equal to 26; a transport block size corresponding to a TBS index whose value range is 0 to 26 in the first TBS table is the same as a transport block size corresponding to a TBS index whose value range is 0 to 26 in a second TBS table; a value range of a TBS index in the second TBS table is 0 to 26; and the second TBS table comprises at least one PRB quantity corresponding to each TBS index and a transport block size corresponding to each PRB quantity.
12. The method according to claim 6, wherein the determining a first TBS index according to the first CQI table, a first PRB quantity, a first TBS table, and the received first CQI index comprises:
determining, according to the first CQI table and the received first CQI index, a first modulation scheme and a first spectrum efficiency that correspond to the received first CQI index; learning, according to the first PRB quantity and the first spectrum efficiency, a first transport block size transmitted to the UE; and obtaining, according to the first TBS table, the first TBS index that corresponds to the first transport block size and the first PRB quantity in the first TBS table.
13. The method according to claim 6, wherein the multiple entries in the second MCS table and in which the modulation schemes are QPSK comprises:
multiple entries in the second MCS table and in which modulation schemes are QPSK, wherein MCS indice corresponding to the multiple entries are at equal intervals.
14. The method according to claim 6, wherein the first MCS table further comprises:
multiple entries in the second MCS table and in which modulation schemes are 64QAM.
15. The method according to claim 14, wherein the multiple entries in the second MCS table and in which the modulation schemes are 64QAM comprises:
multiple entries in the second MCS table and in which modulation schemes are 64QAM, and multiple entries in the second MCS table, except an entry with a minimum MCS index, of all entries in which modulation schemes are 64QAM.
16. A notification apparatus (50) for a channel quality indicator, CQI, comprising:
an acquiring module (51), configured to acquire a first CQI table; a first acquiring module (52), configured to acquiring a first CQI index according to the first CQI table acquired by the acquiring module (51); and a sending module (53), configured to send the first CQI index acquired by the first acquiring module (52) to a base station f; wherein the first CQI table acquired by the acquiring module (51) comprises: entries in which modulation schemes are higher than 64 quadrature amplitude modulation, QAM; and at least one entry in a second CQI table in which a modulation scheme is quadrature phase shift keying QPSK; and all entries in the second CQI table and in which modulation schemes are 16QAM; wherein the at least one entry in which the modulation scheme is QPSK are not N entries that are in the second CQI table and in which a modulation scheme is QPSK, corresponding CQI indexes are continuous and highest ones, and corresponding code rates are highest ones, wherein is a positive integer; wherein modulation schemes in entries in the second CQI table comprise only QPSK, 16QAM, and 64QAM, and a value range of a CQI index in the first CQI table is the same as a value range of a CQI index in the second CQI table; wherein the entry in the first CQI table refers to one modulation scheme, one code rate, and one spectrum efficiency that correspond to each CQI index in the first CQI table, and the entry in the second table refers to one modulation scheme, one code rate, and one spectrum efficiency that correspond to each CQI index in the second CQI table.
17. The apparatus according to claim 16, wherein the at least one entry in the second CQI table and in which the modulation scheme is QPSK in the first CQI table acquired by the acquiring module (51) comprises:
some entries in the second CQI table and in which modulation schemes are QPSK, wherein CQI indices corresponding to the some entries are at equal intervals.
18. The apparatus according to claim 16, wherein the first CQI table acquired by the acquiring module (51) further comprises:
at least one entry in the second CQI table and in which a modulation scheme is 64QAM.
19. The apparatus according to claim 18, wherein the at least one entry in which the modulation scheme is 64QAM in the first CQI table acquired by the acquiring module (51) comprises:
some entries in the second CQI table and in which modulation schemes are 64QAM, and at least one entry in the second CQI table, except an entry corresponding to a maximum CQI index, of all entries in which modulation schemes are 64QAM.
20. The apparatus according to claim 16, wherein a spectrum efficiency in the second CQI table and in an entry that is corresponding to a minimum CQI index and of the entries in which the modulation schemes are higher than 64QAM in the first CQI table is equal to a spectrum efficiency in an entry that is corresponding to a maximum CQI index and of all entries in which modulation schemes are 64QAM.
21. A notification apparatus for a modulation and coding scheme, MCS, comprising:
an acquiring module (71), configured to acquire a first CQI table and a first MCS table; a receiving module (72), configured to receive a first channel quality indicator CQI index sent by terminal UE, wherein the first CQI index is determined by the UE according to the first CQI table; a determining module (73), configured to determine a first MCS index according to the first CQI table acquired by the acquiring module (71), the first MCS table acquired by the acquiring module (71), and the first CQI index received by the receiving module (72); and a sending module (74), configured to send the determined first MCS index to the UE; wherein the first CQI table acquired by the acquiring module (71) comprises: entries in which modulation schemes are higher than 64 quadrature amplitude modulation, QAM; and at least one entry in a second CQI table and in which a modulation scheme is QPSK; and/or all entries that are in the second MCS table and in which modulation schemes are 16QAM; wherein the at least one entry in which the modulation scheme is QPSK are not N entries that are in the second CQI table and in which a modulation scheme is QPSK, corresponding CQI indexes are continuous and highest ones, and corresponding code rates are highest ones, wherein is a positive integer; wherein modulation schemes in entries in the second CQI table comprise only QPSK, 16QAM, and 64QAM, and a value range of a CQI index in the first CQI table is the same as a value range of a CQI index in the second CQI table; wherein the entry in the first CQI table refers to one modulation scheme, one code rate, and one spectrum efficiency that correspond to each CQI index in the first CQI table, and the entry in the second table refers to one modulation scheme, one code rate, and one spectrum efficiency that correspond to each CQI index in the second CQI table; and the first MCS table acquired by the acquiring module (71) comprises: entries in which modulation schemes are higher than 64QAM; and at least one entry in a second MCS table and in which a modulation scheme is QPSK; wherein the at least one entry in which the modulation scheme is QPSK are not K entries that are in the second MCS table and in which a modulation scheme is QPSK, corresponding MCS indexes are continuous and highest ones, and corresponding code rates are highest ones, wherein K is a positive integer; and/or at least one entry in the second MCS table in which a modulation scheme is 16QAM; wherein modulation schemes in the second MCS table comprise only QPSK, 16QAM, and 64QAM, and a value range of a MCS index in the first MCS table is the same as a value range of a MCS index in the second MCS table; wherein the entry in the first MCS table refers to one modulation scheme and one TBS index that corresponding to each MCS index in the first MCS table, and the entry in the second MCS table refers to one modulation scheme and one TBS index that correspond to each MCS index in the second MCS table.
22. The apparatus according to claim 21, wherein the at least one entry in which the modulation scheme is QPSK in the second CQI table comprises:
some entries in the second CQI table and in which modulation schemes are QPSK, wherein CQI indices corresponding to the some entries are at equal intervals.
23. The apparatus according to claim 21, wherein the first CQI table further comprises:
at least one entry in the second CQI table and in which a modulation scheme is 64QAM.
24. The apparatus according to claim 23, wherein the at least one entry in the second CQI table and in which the modulation scheme is 64QAM comprises:
some entries in the second CQI table and in which modulation schemes are 64QAM, and at least one entry in the second CQI table, except an entry corresponding to a maximum CQI index, of all entries in which modulation scheme is 64QAM.
25. The apparatus according to claim 21, wherein a spectrum efficiency in the second CQI table and in an entry that is corresponding to a minimum CQI index and of the entries in which the modulation schemes are higher than 64QAM in the first CQI table is equal to a spectrum efficiency in an entry that is corresponding to a maximum CQI index and of all entries in which modulation schemes are 64QAM.
26. The apparatus according to claim 21, wherein the determining module (73) is specifically configured to:
determine a first TBS index and the first MCS index according to an acquired first PRB quantity, the first CQI table acquired by the acquiring module (71), the first MCS table acquired by the acquiring module (71), and the received first CQI index, wherein: the first PRB quantity is a PRB quantity allocated by a base station to the UE, or the first PRB quantity is a maximum integer less than or equal to a product of a PRB quantity allocated to the UE and a specific coefficient; a first TBS table comprises at least one PRB quantity corresponding to each TBS index and a transport block size corresponding to each PRB quantity, wherein the first TBS table is a TBS table corresponding to the first MCS table; and a value range of a TBS index in the first TBS table is 0 to A, wherein A is a positive integer less than or equal to 26, or a value range of a TBS index in the first TBS table is 0 to B, wherein B is a positive integer greater than or equal to 26; a transport block size corresponding to a TBS index whose value range is 0 to 26 in the first TBS table is the same as a transport block size corresponding to a TBS index whose value range is 0 to 26 in a second TBS table; a value range of a TBS index in the second TBS table is 0 to 26; and the second TBS table comprises at least one PRB quantity corresponding to each TBS index and a transport block size corresponding to each PRB quantity.
27. The apparatus according to claim 26, wherein the determining module (83) comprises:
a first determining submodule (831), configured to determine, according to the first CQI table acquired by the acquiring module (81) and the first CQI index received by the receiving module (82), a first modulation scheme and a first spectrum efficiency that correspond to the received first CQI index; and a second determining submodule (832), configured to learn, according to the acquired first PRB quantity and the first spectrum efficiency determined by the first determining submodule (831), a first transport block size transmitted to the UE; and obtain, according to the first TBS table, the first TBS index that corresponds to the first transport block size determined by the second determining submodule (832) and the first PRB quantity in the first TBS table.
28. The apparatus according to claim 21, wherein the at least one entry in the second MCS table in which the modulation scheme is QPSK in the first CQI table acquired by the acquiring module (71) comprises:
some entries in the second MCS table and in which modulation schemes are QPSK, wherein MCS indices corresponding to the some entries are at equal intervals.
29. The apparatus according to claim 21, wherein the first MCS table acquired by the acquiring module (71) further comprises:
at least one entry in the second MCS table and in which a modulation scheme is 64QAM.
30. The apparatus according to claim 29, wherein the at least one entry in the second MCS table and in which the modulation scheme is 64QAM in the first MCS table acquired by the acquiring module (71) comprises:
some entries in the second MCS table and in which modulation schemes are 64QAM, and at least one entry in the second MCS table, except an entry with a minimum MCS index, of all entries in which modulation schemes are 64QAM.
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