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US 9,867,211 B2Granted
Method and communication apparatus for acquiring scheduling information of neighbouring cell base station
AssigneeCellos Software Ltd
InventorsSumudu Prasad Wijetunge, Leon Gor, Md Anisul Karim
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Abstract
The present disclosure relates to methods and a communication apparatus for acquiring scheduling information of neighboring cell eNodeBs in a wireless communication network.
Claims28
A method executed by a communication device for acquiring scheduling information transmitted from a base station located in a cell covering the communication device, the method comprising:
- determining, by the communication device, a set of candidate random access radio network temporary identities (RA-RNTIs);
- receiving, by the communication device, a first downlink control channel message transmitted by the base station, via an air interface;
- attempting to blind decode, by the communication device, downlink control information (DCI) bits in common search space in the received first downlink control channel message by using each RA-RNTI in the determined set of candidate RA-RNTIs, so as to determine a location of random access response (RAR) corresponding to an active user equipment (UE) in a corresponding downlink shared channel message;
- receiving, by the communication device, the corresponding downlink shared channel message transmitted by the base station, via the air interface;
- decoding, by the communication device, the RAR in the received downlink shared channel message by using the determined location of the RAR so as to acquire a temporary cell random access radio network temporary identity (TC-RNTI) from one of the RARs in the received downlink shared channel message;
- receiving, by the communication device, a second downlink control channel message transmitted by the base station, via the air interface;
- blind decoding downlink control information (DCI) in common search space and user-specific search space of the received second downlink control channel message by using the acquired TC-RNTI, so as to acquire scheduling information transmitted by the base station.
4 more elements
A communication device for acquiring scheduling information transmitted from a base station located in a cell covering the communication device, the communication device comprising:
- a decoder configured to determine a set of candidate RA-RNTIs;
- a radio frequency (RF) processing unit connected to the decoder and configured to receive a first downlink control channel message transmitted by the base station, via an air interface;
- the decoder further configured to attempt to blind decode DCI in common search space in the received first downlink control channel message by using each RA-RNTI in the determined set of candidate RA-RNTIs so as to determine a location of RAR corresponding to a UE in a corresponding downlink shared channel message;
- the RF processing unit further configured to receive the corresponding downlink shared channel message transmitted by the base station via the air interface;
- the decoder further configured to decode the RAR in the received downlink shared channel message by using the determined location of the RAR so as to acquire a TC-RNTI from one of the RARs in the received downlink shared channel message;
- the RF processing unit further configured to receive a second downlink control channel message transmitted by the base station via the air interface;
- the decoder further configured to blind decode DCIs in common search space and user-specific search space of the received second downlink control channel message transmitted by the base station by using the acquired TC-RNTI to acquire scheduling information.
4 more elements
Dependencies are inferred from the claim text.