Configuration and mapping of uplink control channel resource
First Claim
1. A method of configuring an uplink control channel resource in a transmission/reception apparatus transmitting control information for user equipment through a data region of resource-block pairs in a subframe, the method comprising:
- assigning a plurality of enhanced physical downlink control channel (EPDCCH) sets to a single user equipment, wherein each of the plurality of EPDCCH sets includes an X number of resource-block pairs in the subframe, and the X is a natural number which is greater than or equal to “
1” and
is less than or equal to the number of physical resource-block pairs (PRB pairs) associated with a downlink bandwidth;
determining an uplink control channel resource starting offset associated with a starting position of a corresponding uplink control channel resource region for ACK/NACK feedback of the single user equipment, wherein the uplink control channel resource starting offset is UE-specifically determined in a corresponding cell, and is separately determined for each of the plurality of EPDCCH sets assigned to the single user equipment; and
transmitting information indicating the uplink control channel resource starting offset for each of the plurality of EPDCCH sets, and the control information including downlink scheduling control information, to the single user equipment, wherein the downlink scheduling control information includes dynamic offset indication information,wherein in a case that the plurality of EPDCCH sets assigned to the single user equipment include both a plurality of localized type EPDCCH sets and a plurality of distributed type EPDCCH sets,the determining of the uplink control channel resource starting offset per EPDCCH set includes;
performing a first determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of localized type EPDCCH sets; and
performing a second determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of distributed type EPDCCH sets;
wherein the first determination procedure and the second determination procedure are independent from each other; and
wherein in the case of an uplink control channel resource mapping for the ACK/NACK feedback associated with a physical downlink shared channel (PDSCH) assigned according to the downlink scheduling control information,(i) the information indicating the uplink control channel resource starting offset determined per EPDCCH set according to an EPDCCH set type, (ii) a lowest index of at least one enhanced control channel element (ECCE) for a transmission of the control information, and (iii) the dynamic offset indication information are used as resource determination components.
2 Assignments
0 Petitions
Accused Products
Abstract
The disclosure is related to configuration and mapping of uplink control channel resources. Particularly, the present disclosure relates to configuring and mapping uplink control channel resources for user equipment receiving downlink control information through a downlink control channel newly defined in a data region. Furthermore, the present disclosure relates to configuring and mapping uplink control channel resources for uplink HARQ-ACK/NACK feedback of user equipment. Herein, the uplink HARQ-ACK/NACK feedback may be performed by the user equipment in response to a downlink data channel assigned according to downlink scheduling information transmitted through such new downlink control channel.
27 Citations
18 Claims
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1. A method of configuring an uplink control channel resource in a transmission/reception apparatus transmitting control information for user equipment through a data region of resource-block pairs in a subframe, the method comprising:
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assigning a plurality of enhanced physical downlink control channel (EPDCCH) sets to a single user equipment, wherein each of the plurality of EPDCCH sets includes an X number of resource-block pairs in the subframe, and the X is a natural number which is greater than or equal to “
1” and
is less than or equal to the number of physical resource-block pairs (PRB pairs) associated with a downlink bandwidth;determining an uplink control channel resource starting offset associated with a starting position of a corresponding uplink control channel resource region for ACK/NACK feedback of the single user equipment, wherein the uplink control channel resource starting offset is UE-specifically determined in a corresponding cell, and is separately determined for each of the plurality of EPDCCH sets assigned to the single user equipment; and transmitting information indicating the uplink control channel resource starting offset for each of the plurality of EPDCCH sets, and the control information including downlink scheduling control information, to the single user equipment, wherein the downlink scheduling control information includes dynamic offset indication information, wherein in a case that the plurality of EPDCCH sets assigned to the single user equipment include both a plurality of localized type EPDCCH sets and a plurality of distributed type EPDCCH sets, the determining of the uplink control channel resource starting offset per EPDCCH set includes; performing a first determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of localized type EPDCCH sets; and performing a second determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of distributed type EPDCCH sets; wherein the first determination procedure and the second determination procedure are independent from each other; and wherein in the case of an uplink control channel resource mapping for the ACK/NACK feedback associated with a physical downlink shared channel (PDSCH) assigned according to the downlink scheduling control information, (i) the information indicating the uplink control channel resource starting offset determined per EPDCCH set according to an EPDCCH set type, (ii) a lowest index of at least one enhanced control channel element (ECCE) for a transmission of the control information, and (iii) the dynamic offset indication information are used as resource determination components. - View Dependent Claims (2, 3, 4, 5)
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6. A method of mapping an uplink control channel resource in user equipment, the method comprising:
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receiving information indicating an uplink control channel resource starting offset for each of a plurality of enhanced physical downlink control channel (EPDCCH) sets assigned to a single user equipment, from a transmission/reception apparatus, wherein each of the plurality of EPDCCH sets includes an X number of resource-block pairs in the subframe, and the X is a natural number which is greater than or equal to “
1” and
is less than or equal to the number of physical resource-block pairs (PRB pairs) associated with a downlink bandwidth, wherein the uplink control channel resource starting offset associated with a starting position of a corresponding uplink control channel resource region for ACK/NACK feedback of the single user equipment is UE-specifically determined in a corresponding cell and is separately determined for each of the plurality of EPDCCH sets assigned to the single user equipment, and wherein in a case that the plurality of EPDCCH sets assigned to the single user equipment include both a plurality of localized type EPDCCH sets and a plurality of distributed type EPDCCH sets, the determining of the uplink control channel resource starting offset per EPDCCH set includes (i) performing a first determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of localized type EPDCCH sets and (ii) performing a second determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of distributed type EPDCCH sets, wherein the first determination procedure and the second determination procedure are independent from each other;receiving downlink scheduling control information through at least one enhanced control channel element (ECCE) included in one EPDCCH set of the plurality of EPDCCH sets, from the transmission/reception apparatus, wherein the downlink scheduling control information includes dynamic offset indication information; and performing an uplink control channel resource mapping for the ACK/NACK feedback associated with a physical downlink shared channel (PDSCH) assigned according to the downlink scheduling control information, using (i) the information indicating the uplink control channel resource starting offset determined per EPDCCH set according to an EPDCCH set type, (ii) a lowest index of the at least one ECCE, and (iii) the dynamic offset indication information, as resource determination components. - View Dependent Claims (7, 8, 9)
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10. A transmission/reception apparatus transmitting control information for user equipment through a data region of resource-block pairs in a subframe, the transmission/reception apparatus comprising:
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a control processor configured to assign a plurality of enhanced physical downlink control channel (EPDCCH) sets to a single user equipment, wherein each of the plurality of EPDCCH sets includes an X number of resource-block pairs in the subframe, and the X is a natural number which is greater than or equal to “
1” and
is less than or equal to the number of physical resource-block pairs (PRB pairs) associated with a downlink bandwidth; anda transmitter configured to transmit information indicating an uplink control channel resource starting offset for each of the plurality of EPDCCH sets, to the single user equipment and to transmit the control information including downlink scheduling control information to the single user equipment, wherein the uplink control channel resource starting offset associated with a starting position of a corresponding uplink control channel resource region for ACK/NACK feedback is UE-specifically determined in a corresponding cell and is separately determined for each of the plurality of EPDCCH sets assigned to the single user equipment, and the downlink scheduling control information includes dynamic offset indication information, wherein in a case that the plurality of EPDCCH sets assigned to the single user equipment include both a plurality of localized type EPDCCH sets and a plurality of distributed type EPDCCH sets, the determining of the uplink control channel resource starting offset per EPDCCH set includes; performing a first determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of localized type EPDCCH sets; and performing a second determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of distributed type EPDCCH sets; wherein the first determination procedure and the second determination procedure are independent from each other; and wherein in the case of an uplink control channel resource mapping for the ACK/NACK feedback associated with a physical downlink shared channel (PDSCH) assigned according to the downlink scheduling control information, (i) the information indicating the uplink control channel resource starting offset determined per EPDCCH set according to an EPDCCH set type, (ii) a lowest index of at least one enhanced control channel element (ECCE) for a transmission of the control information, and (iii) the dynamic offset indication information are used as resource determination components. - View Dependent Claims (11, 12, 13, 14)
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15. User equipment comprising:
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a receiver configured to; (a) receive information indicating an uplink control channel resource starting offset for each of a plurality of enhanced physical downlink control channel (EPDCCH) sets assigned to the user equipment corresponding to a single entity, from a transmission/reception apparatus, wherein each of the plurality of EPDCCH sets includes an X number of resource-block pairs in the subframe, and the X is a natural number which is greater than or equal to “
1” and
is less than or equal to the number of physical resource-block pairs (PRB pairs) associated with a downlink bandwidth, wherein the uplink control channel resource starting offset associated with a starting position of a corresponding uplink control channel resource region for ACK/NACK feedback is UE-specifically determined in a corresponding cell and is separately determined for each of the plurality of EPDCCH sets assigned to the user equipment, and wherein in a case that the plurality of EPDCCH sets assigned to the user equipment include both a plurality of localized type EPDCCH sets and a plurality of distributed type EPDCCH sets, the determining of the uplink control channel resource starting offset per EPDCCH set includes (i) performing a first determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of localized type EPDCCH sets and (ii) performing a second determination procedure of separately determining an uplink control channel resource starting offset for each of the plurality of distributed type EPDCCH sets, wherein the first determination procedure and the second determination procedure are independent from each other, and(b) receive downlink scheduling control information through at least one enhanced control channel element (ECCE) included in one EPDCCH set of the plurality of EPDCCH sets, from the transmission/reception apparatus, wherein the downlink scheduling control information includes dynamic offset indication information; and a control processor configured to perform an uplink control channel resource mapping for the ACK/NACK feedback associated with a physical downlink shared channel (PDSCH) assigned according to the downlink scheduling control information, using (i) the information indicating the uplink control channel resource starting offset determined per EPDCCH set according to an EPDCCH set type, (ii) a lowest index of the at least one ECCE, and (iii) the dynamic offset indication information, as resource determination components. - View Dependent Claims (16, 17, 18)
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Specification