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US 2017/0251490 A1Published application
Radio communication system and communication control method
AssigneeNEC Corporation
InventorsLe LIU, Yoshikazu Kakura, Naoto Ishii, Takamichi Inoue
Life of this patent
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Abstract
A radio communication system includes: a plurality of cells having different scrambling sequences, respectively, wherein at least two cells communicate with at lease two user terminals connected to different serving cells; and a controller which controls the plurality of cells and provides a single scrambling sequence to said at least two cells and said at least two user terminals for control signal transmission and reception.
Claims39
1-37. (canceled)
An eNB comprising:
- a controller configured to scramble, by using a cell ID, a first schedule assignment and control information carried on a physical downlink control channel (PDCCH), wherein
- the controller is further configured to scramble, by using an ID regarding enhanced physical downlink control channel (EPDCCH), a second schedule assignment carried on an EPDCCH;
- and
- a transmitter is configured to transmit, to a user equipment (UE), an EPDCCH-config including the ID regarding EPDCCH.
1 more element
An eNB comprising:
- a controller configured to scramble, by using a cell ID, a first schedule assignment and a control information carried on a physical downlink control channel (PDCCH), wherein
- the controller is further configured to scramble, by using a parameter which is included in an enhanced physical downlink control channel config (EPDCCH-config), a second schedule assignment carried on an EPDCCH.
A user equipment (UE) comprising:
- a receiver configured to:
- receive, from an eNB, a scrambled first schedule assignment and a control information carried on a physical downlink control channel (PDCCH), which the first schedule assignment and the control information are scrambled by using a cell ID;
- receive, from the eNB, a scrambled second schedule assignment carried on an enhanced physical downlink control channel (EPDCCH), which the second schedule assignment is scrambled by using an ID regarding EPDCCH;
- and
- receive, from the eNB, an EPDCCH-config including the ID;
- and
- a detector configured to:
- descramble the first schedule assignment and the control information in accordance with the cell ID;
- and
- descramble the second schedule assignment in accordance with the ID.
7 more elements
A user equipment (UE) comprising:
- a detector configured to descramble a first schedule assignment and a control information, carried on a physical downlink control channel (PDCCH), in accordance with a cell ID, wherein
- the detector is further configured to descramble a second schedule assignment, carried on an enhanced physical downlink control channel (EPDCCH), in accordance with a parameter included in an EPDCCH-config.
A communication method of an eNB, comprising:
- scrambling, by using a cell ID, a first schedule assignment and control information carried on a physical downlink control channel (PDCCH);
- scrambling, by using an ID regarding enhanced physical downlink control channel (EPDCCH), a second schedule assignment carried on an EPDCCH;
- and
- transmitting, to a user equipment (UE), an EPDCCH-config including the ID regarding EPDCCH.
1 more element
A communication method of an eNB, comprising:
- scrambling, by using a cell ID, a first schedule assignment and a control information carried on a physical downlink control channel (PDCCH);
- and
- scrambling, by using a parameter which is included in an enhanced physical downlink control channel config (EPDCCH-config), a second schedule assignment carried on an EPDCCH.
A communication method of a user equipment (UE), comprising:
- receiving, from an eNB, a scrambled first schedule assignment and a control information carried on a physical downlink control channel (PDCCH), which the first schedule assignment and the control information are scrambled by using a cell ID;
- receiving, from the eNB, a scrambled second schedule assignment carried on an enhanced physical downlink control channel (EPDCCH), which the second schedule assignment is scrambled by using an ID regarding EPDCCH;
- receiving, from the eNB, an EPDCCH-config including the ID;
- descrambling the first schedule assignment and the control information in accordance with the cell ID;
- and
- descrambling the second schedule assignment in accordance with the ID.
3 more elements
A communication method of a user equipment (UE), comprising:
- descrambling a first schedule assignment and a control information, carried on a physical downlink control channel (PDCCH), in accordance with a cell ID;
- and
- descrambling a second schedule assignment, carried on an enhanced physical downlink control channel (EPDCCH), in accordance with a parameter included in an EPDCCH-config.
Dependencies are inferred from the claim text.