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US 2022/0030608 A1Published application
Radio communication system and communication control method
AssigneeNEC Corporation
InventorsLe LIU, Yoshikazu KAKURA, Naoto ISHII, Takamichi INOUE
Life of this patent
Estimating the term…
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.
Claims13
1-37. (canceled)
A method for a base station, the method comprising:
- scrambling, based on a first scrambling sequence, a first plurality of bits for a physical downlink control channel (PDCCH), wherein the first scrambling sequence is based on a first initialization value, wherein the first initialization value is based on a cell identity (ID);
- transmitting an enhanced physical downlink control channel (EPDCCH) configuration to user equipment, wherein the EPDCCH configuration comprises a parameter;
- and
- scrambling, based on a second scrambling sequence, a second plurality of bits for an EPDCCH, wherein the second scrambling sequence is based on a second initialization value, wherein the second initialization value is based on the parameter.
1 more element
A method for user equipment, the method comprising:
- receiving a first plurality of bits in a physical downlink control channel (PDCCH) from a base station, wherein the first plurality of bits are scrambled by a first scrambling sequence, wherein the first scrambling sequence is based on a first initialization value, wherein the first initialization value is based on on a cell identity (ID);
- receiving an enhanced physical downlink control channel (EPDCCH) configuration from the base station, wherein the EPDCCH configuration comprises a parameter;
- and
- receiving a second plurality of bits in an EPDCCH from the base station, wherein the second bits are scrambled by a second scrambling sequence, wherein the second scrambling sequence is based on a second initialization value, wherein the second initialization value is based on the parameter.
1 more element
A base station comprising:
- a controller configured to:
- scramble, based on a first scrambling sequence, a first plurality of bits for a physical downlink control channel (PDCCH), wherein the first scrambling sequence is based on a first initialization value, wherein the first initialization value is based on a cell identity (ID);
- and
- scramble, based on a second scrambling sequence, a second plurality of bits for an enhanced physical downlink control channel (EPDCCH), wherein the second scrambling sequence is based on a second initialization value, wherein the second initialization value is based on a parameter;
- and
- a transmitter configured to transmit an EPDCCH configuration to user equipment, wherein the EPDCCH configuration comprises the parameter.
3 more elements
User equipment comprising:
- a receiver configured to:
- receive a first plurality of bits in a physical downlink control channel (PDCCH) from a base station, wherein the first plurality of bits are scrambled by a first scrambling sequence, wherein the first scrambling sequence is based on a first initialization value, wherein the first initialization value is based on a cell identity (ID);
- receive an enhanced physical downlink control channel (EPDCCH) configuration from the base station, wherein the EPDCCH configuration comprises a parameter;
- and
- receive a second plurality of bits in an EPDCCH from the base station, wherein the second bits are scrambled by a second scrambling sequence, wherein the second scrambling sequence is based on a second initialization value, wherein the second initialization value is based on the parameter.
2 more elements
Dependencies are inferred from the claim text.