METHOD FOR TRANSMITTING FEEDBACK INFORMATION, TERMINAL EQUIPMENT AND BASE STATION

• US 20180199333A1
• Filed: 10/22/2015
• Published: 07/12/2018
• Est. Priority Date: 10/22/2015
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Inventors: FENG, Bin, TANG, Hai
• Granted Patent: US 10,440,696 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 27/0006 Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio for spectrum sharing between different networks H04W16/14
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The disclosure discloses a method for transmitting feedback information, terminal equipment and a base station. The method includes that the terminal equipment receives signaling indicative of Physical Uplink Control Channel (PUCCH) resource(s) from the base station, receives data on licensed carrier(s) and unlicensed carrier(s) which are aggregated, and after generating the feedback information, transmits the feedback information to the base station through the corresponding PUCCH resource(s). The problem that the base station in a License Assisted Access (LAA) system may not know about the feedback information transmitted by the terminal equipment may be solved, thereby increasing efficiency of feedback information transmission.

Claims

1. A method for transmitting feedback information, comprising:

receiving, by terminal equipment, a first signaling transmitted by a base station, the first signaling being configured to indicate K first Physical Uplink Control Channel (PUCCH) resource(s), wherein K is a positive integer;

in a first downlink subframe set, respectively receiving, by the terminal equipment, data on licensed carrier(s) and unlicensed carrier(s) which are aggregated, determining N-bit feedback information for the licensed carrier(s), and determining M-bit feedback information for the unlicensed carrier(s), wherein M is an integer more than or equal to 0, N is an integer more than or equal to 0, and at least one of M and N is not 0;

judging, by the terminal equipment, whether M is more than 0 or not; and

when M is more than 0, transmitting, by the terminal equipment, the M-bit feedback information and the N-bit feedback information on L first PUCCH resource(s) in the K first PUCCH resource(s) in a first uplink subframe, or, transmitting, by the terminal equipment, the N-bit feedback information on at least one second PUCCH resource and transmitting the M-bit feedback information on L first PUCCH resource(s) in the K first PUCCH resource(s) in a first uplink subframe, wherein L is a positive integer less than or equal to K, and the at least one second PUCCH resource is determined according to Downlink Control Information (DCI) configured for scheduling data transmission on the licensed carrier(s),

wherein the first downlink subframe set comprises all downlink subframes corresponding to the first uplink subframe for transmitting the feedback information.

2. The method according to claim 1, further comprising:

when M is equal to 0, transmitting, by the terminal equipment, the N-bit feedback information on the at least one second PUCCH resource in the first uplink subframe, wherein the at least one second PUCCH resource is determined according to the DCI configured for scheduling data transmission on the licensed carrier(s).

3. The method according to claim 1, wherein determining the M-bit feedback information comprises:

determining M according to the number of Physical Downlink Share Channel(s) (PDSCH(s)) received on the unlicensed carrier(s);

or,

determining M according to a maximum carrier index of all unlicensed carrier(s) receiving the PDSCH(s);

or,

determining M according to the total number of the unlicensed carrier(s) in aggregation.

4. The method according to claim 1, applied to a Time Division Duplex (TDD) system, wherein determining the M-bit feedback information comprises:

determining M according to the number of the downlink subframes in the first downlink subframe set.

5. The method according to claim 1, wherein determining the N-bit feedback information comprises:

determining N according to the DCI.

6. The method according to claim 1, wherein transmitting the M-bit feedback information and the N-bit feedback information on the L first PUCCH resource(s) in the K first PUCCH resource(s) comprises:

concatenating and jointly coding the M-bit feedback information and the N-bit feedback information for transmission on the L first PUCCH resource(s).

7. The method according to claim 1, wherein L is equal to 1 and the L first PUCCH resource is a first PUCCH resource corresponding to the unlicensed carrier with the maximum carrier index in the unlicensed carrier(s).

8. The method according to claim 1, wherein transmitting the M-bit feedback information on the L first PUCCH resource(s) in the K first PUCCH resource(s) comprises:

performing bit padding on the M-bit feedback information to obtain an information sequence with a length of Q bits when M is smaller than Q, and transmitting the information sequence with the length of Q bits on the L first PUCCH resource(s) in the K first PUCCH resource(s), wherein Q is a positive integer, and Q is a threshold value predetermined by a protocol or configured by the base station.

9. A method for transmitting feedback information, comprising:

transmitting, by a base station, a first signaling to terminal equipment, the first signaling being configured to indicate K first Physical Uplink Control Channel (PUCCH) resource(s), wherein K is a positive integer;

in a first downlink subframe set, transmitting, by the base station, data to the terminal equipment on licensed carrier(s) and/or unlicensed carrier(s) which are aggregated; and

when the base station transmits the data to the terminal equipment on the unlicensed carrier(s), receiving, by the base station, M-bit feedback information corresponding to the unlicensed carrier(s) and N-bit feedback information corresponding to the licensed carrier(s) from the terminal equipment on L first PUCCH resource(s) in the K first PUCCH resource(s) in a first uplink subframe, or, when the base station transmits the data to the terminal equipment on the licensed carrier(s) and the unlicensed carrier(s), by the base station, receiving N-bit feedback information corresponding to the licensed carrier(s) from the terminal equipment on at least one second PUCCH resource and receiving M-bit feedback information corresponding to the unlicensed carrier(s) from the terminal equipment on L first PUCCH resource(s) in the K first PUCCH resource(s) in a first uplink subframe, wherein L is a positive integer less than or equal to K, the at least one second PUCCH resource is determined according to Downlink Control Information (DCI) configured for scheduling data transmission on the licensed carrier(s), M is an integer more than or equal to 0, N is an integer more than or equal to 0, at least one of M and N is not 0, and the first downlink subframe set comprises all downlink subframes corresponding to the first uplink subframe for transmitting the feedback information.

10. The method according to claim 9, further comprising:

when the base station transmits the data to the terminal equipment only on the licensed carrier(s), receiving, by the base station, the N-bit feedback information corresponding to the licensed carrier(s) on the at least one second PUCCH resource in the first uplink subframe, wherein the at least one second PUCCH resource is determined according to the DCI configured for scheduling data transmission on the licensed carrier(s).

11. The method according to claim 9, further comprising:

determining, by the base station, M according to the number of Physical Downlink Share Channel(s) (PDSCH(s)) transmitted on the unlicensed carrier(s);

or,

determining, by the base station, M according to a maximum carrier index of all unlicensed carrier(s) transmitting the PDSCH(s);

or,

determining, by the base station, M according to the total number of the unlicensed carrier(s) in aggregation.

12. The method according to claim 9, applied to a Time Division Duplex (TDD) system and further comprising:

determining, by the base station, M according to the number of the downlink subframes in the first downlink subframe set.

13-15. -15. (canceled)

16. Terminal equipment, comprising:

a receiving module, configured to receive a first signaling transmitted by a base station, the first signaling being configured to indicate K first Physical Uplink Control Channel (PUCCH) resource(s), wherein K is a positive integer;

the receiving module being further configured to, in a first downlink subframe set, respectively receive data on licensed carrier(s) and unlicensed carrier(s) which are aggregated, determine N-bit feedback information for the licensed carrier(s), and determine M-bit feedback information for the unlicensed carrier(s), wherein M is an integer more than or equal to 0, N is an integer more than or equal to 0, and at least one of M and N is not 0;

a judgment module, configured to judge whether M is more than 0 or not; and

a transmission module, configured to, when M is more than 0, transmit the M-bit feedback information and the N-bit feedback information on L first PUCCH resource(s) in the K first PUCCH resource(s) in a first uplink subframe, or, transmit the N-bit feedback information on at least one second PUCCH resource and transmit the M-bit feedback information on L first PUCCH resource(s) in the K first PUCCH resource(s) in a first uplink subframe, wherein L is a positive integer less than or equal to K, and the at least one second PUCCH resource is determined according to Downlink Control Information (DCI) configured for scheduling data transmission on the licensed carrier(s),

wherein the first downlink subframe set comprises all downlink subframes corresponding to the first uplink subframe for transmitting the feedback information.

17. The terminal equipment according to claim 16, wherein the transmission module is further configured to:

when M is equal to 0, transmit, by the terminal equipment, the N-bit feedback information on the at least one second PUCCH resource in the first uplink subframe, wherein the at least one second PUCCH resource is determined according to the DCI configured for scheduling data transmission on the licensed carrier(s).

18. The terminal equipment according to claim 16, wherein the operation that the receiving module determines the M-bit feedback information comprises that:

the receiving module determines M according to the number of Physical Downlink Share Channel(s) (PDSCH(s)) received on the unlicensed carrier(s);

or,

the receiving module determines M according to a maximum carrier index of all unlicensed carrier(s) receiving the PDSCH(s);

or,

the receiving module determines M according to the total number of the unlicensed carrier(s) in aggregation.

19. The terminal equipment according to claim 16, applied to a Time Division Duplex (TDD) system, wherein the operation that the receiving module determines the M-bit feedback information comprises that:

the receiving module determines M according to the number of the downlink subframes in the first downlink subframe set.

20. The terminal equipment according to claim 16, wherein determining the N-bit feedback information comprises:

the receiving module determines N according to the DCI.

21. The terminal equipment according to claim 16, wherein the operation that the transmission module transmits the M-bit feedback information and the N-bit feedback information on the L first PUCCH resource(s) in the K first PUCCH resource(s) comprises that:

the transmission module concatenates and jointly codes the M-bit feedback information and the N-bit feedback information for transmission on the L first PUCCH resource(s).

22. The terminal equipment according to claim 16, wherein L is equal to 1 and the L first PUCCH resource is a first PUCCH resource corresponding to the unlicensed carrier with the maximum carrier index in the unlicensed carrier(s).

23. The terminal equipment according to claim 16, wherein the operation that the transmission module transmits the M-bit feedback information on the L first PUCCH resource(s) in the K first PUCCH resource(s) comprises that:

the transmission module performs bit padding on the M-bit feedback information to obtain an information sequence with a length of Q bits when M is smaller than Q, and transmits the information sequence with the length of Q bits on the L first PUCCH resource(s) in the K first PUCCH resource(s), wherein Q is a positive integer, and Q is a threshold value predetermined by a protocol or configured by the base station.

24-30. -30. (canceled)