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US 2023/0413341 A1Published application
Communication apparatus and communication method
AssigneeSony Group Corporation
InventorsNAOKI KUSASHIMA, KAZUYUKI SHIMEZAWA, HIROKI MATSUDA
Life of this patent
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Abstract
Provided is a communication apparatus that includes a control unit that performs control such that a plurality of reference signals associated with pieces of antenna information different from each other is transmitted to a terminal apparatus, and an acquisition unit that acquires control information corresponding to at least any one of the plurality of reference signals from the terminal apparatus after a random access response in a random access procedure is transmitted to the terminal apparatus. The control unit controls following communication with the terminal apparatus on the basis of the antenna information corresponding to the acquired control information.
Claims14
A base station device, comprising:
- a radio transceiver;
- and
- circuitry configured to control the radio transceiver to:
- transmit one or more synchronization signal blocks, each of the one or more synchronization signal blocks comprising:
- a New Radio (NR) Primary Synchronization Signal (PSS),
- an NR Secondary Synchronization Signal (SSS), and
- an NR Physical Broadcast Channel (PBCH), wherein the NR PBCH carries an NR Master Information Block (MIB) which comprises common control resource set information where an NR Physical Downlink Control Channel (PDCCH) is located;
- transmit the NR PDCCH to which Cyclic Redundancy Check (CRC) scrambled with a System Information Radio Network Temporary Identifier (SI-RNTI) is added;
- transmit an NR Physical Downlink Shared Channel (PDSCH) scheduled by the NR PDCCH;
- receive a PRACH associated with a first synchronization signal block selected from among the one or more synchronization signal blocks based on Reference Signal Received Power (RSRP) measurement by a user equipment;
- transmit a Random Access Response (RAR) corresponding to the received PRACH;
- and
- receive, after the transmission of the RAR to the user equipment, information regarding a second beam which comprises:
- one or more synchronization signal block indices, or
- information corresponding to one or more Channel State Information-Reference Signals (CSI-RSs),
- wherein a Demodulation Reference Signal (DMRS) of the NR PDCCH, a DMRS of the NR PDSCH and the first synchronization signal block, before the transmission of the RAR to the user equipment, are Quasi-Co-Location (QCL).
13 more elements
A user equipment, comprising:
- a radio transceiver;
- and
- circuitry configured to control the radio transceiver to:
- receive one or more synchronization signal blocks, each of the one or more synchronization signal blocks comprising:
- a New Radio (NR) Primary Synchronization Signal (PSS),
- an NR Secondary Synchronization Signal (SSS), and
- an NR Physical Broadcast Channel (PBCH), wherein the NR PBCH carries NR Master Information Block (MIB) which comprises common control resource set information where an NR Physical Downlink Control Channel (PDCCH) is located;
- receive the NR PDCCH to which Cyclic Redundancy Check (CRC) scrambled with a System Information Radio Network Temporary Identifier (SI-RNTI) is added;
- receive an NR Physical Downlink Shared Channel (PDSCH) scheduled by the NR PDCCH;
- transmit a PRACH associated with a first synchronization signal block selected from among the one or more synchronization signal blocks based on Reference Signal Received Power (RSRP) measurement by the user equipment;
- receive a Random Access Response (RAR) corresponding to the transmitted PRACH;
- and
- transmit, after the reception of the RAR from a base station, information regarding a second beam which comprises:
- one or more synchronization signal block indices, or
- information corresponding to one or more Channel State Information-Reference Signals (CSI-RSs),
- wherein a Demodulation Reference Signal (DMRS) of the NR PDCCH, a DMRS of the NR PDSCH and the first synchronization signal block, before the reception of the RAR from the base station, are Quasi-Co-Location (QCL).
13 more elements
A electronic device, comprising:
- circuitry configured to control a radio transceiver to:
- receive one or more synchronization signal blocks, each of the one or more synchronization signal blocks comprising:
- a New Radio (NR) Primary Synchronization Signal (PSS),
- an NR Secondary Synchronization Signal (SSS), and
- an NR Physical Broadcast Channel (PBCH), wherein the NR PBCH carries an NR Master Information Block (MIB) which comprises common control resource set information where an NR Physical Downlink Control Channel (PDCCH) is located;
- receive the NR PDCCH to which Cyclic Redundancy Check (CRC) scrambled with a System Information Radio Network Temporary Identifier (SI-RNTI) is added;
- receive an NR Physical Downlink Shared Channel (PDSCH) scheduled by the NR PDCCH;
- transmit a PRACH associated with a first synchronization signal block selected from among the one or more synchronization signal blocks based on Reference Signal Received Power (RSRP) measurement;
- receive a Random Access Response (RAR) corresponding to the transmitted PRACH;
- and
- transmit, after receiving the RAR from a base station, information regarding a second beam which comprises:
- one or more synchronization signal block indices, or
- information corresponding to one or more Channel State Information-Reference Signals (CSI-RSs),
- wherein a Demodulation Reference Signal (DMRS) of the NR PDCCH, a DMRS of the NR PDSCH and the first synchronization signal block, before the reception of the RAR from the base station, are Quasi-Co-Location (QCL).
11 more elements
A method for a base station, the method comprising:
- transmitting one or more synchronization signal blocks, each of the one or more synchronization signal blocks comprising:
- a New Radio (NR) Primary Synchronization Signal (PSS),
- an NR Secondary Synchronization Signal (SSS), and
- an NR Physical Broadcast Channel (PBCH), wherein the NR PBCH carries an NR Master Information Block (MIB) which comprises common control resource set information where an NR Physical Downlink Control Channel (PDCCH) is located;
- transmitting the NR PDCCH to which Cyclic Redundancy Check (CRC) scrambled with a System Information Radio Network Temporary Identifier (SI-RNTI) is added;
- transmitting an NR Physical Downlink Shared Channel (PDSCH) scheduled by the NR PDCCH;
- receiving a PRACH associated with a first synchronization signal block selected from among the one or more synchronization signal blocks based on Reference Signal Received Power (RSRP) measurement by a user equipment;
- transmitting a Random Access Response (RAR) corresponding to the received PRACH;
- and
- receiving, after transmitting the RAR to the user equipment, information regarding a second beam which comprises:
- one or more synchronization signal block indices, or
- information corresponding to one or more Channel State Information-Reference Signals (CSI-RSs),
- wherein a Demodulation Reference Signal (DMRS) of the NR PDCCH, a DMRS of the NR PDSCH and the first synchronization signal block, before transmitting the RAR to the user equipment, are Quasi-Co-Location (QCL).
10 more elements
A method for a user equipment, the method comprising:
- receiving one or more synchronization signal blocks, each of the one or more synchronization signal blocks comprising:
- a New Radio (NR) Primary Synchronization Signal (PSS),
- an NR Secondary Synchronization Signal (SSS), and
- an NR Physical Broadcast Channel (PBCH), wherein the NR PBCH carries NR Master Information Block (MIB) which comprises common control resource set information where an NR Physical Downlink Control Channel (PDCCH) is located;
- receiving the NR PDCCH to which Cyclic Redundancy Check (CRC) scrambled with a System Information Radio Network Temporary Identifier (SI-RNTI) is added;
- receiving an NR Physical Downlink Shared Channel (PDSCH) scheduled by the NR PDCCH;
- transmitting a PRACH associated with a first synchronization signal block selected from among the one or more synchronization signal blocks based on Reference Signal Received Power (RSRP) measurement by the user equipment;
- receiving a Random Access Response (RAR) corresponding to the transmitted PRACH;
- and
- transmitting, after receiving the RAR from a base station, information regarding a second beam which comprises:
- one or more synchronization signal block indices, or
- information corresponding to one or more Channel State Information-Reference Signals (CSI-RSs),
- wherein a Demodulation Reference Signal (DMRS) of the NR PDCCH, a DMRS of the NR PDSCH and the first synchronization signal block, before receiving the RAR from the base station, are Quasi-Co-Location (QCL).
10 more elements
Dependencies are inferred from the claim text.