Radio PDCCH to facilitate numerology operations
First Claim
1. An apparatus comprising a processor, a memory, and communication circuitry, the apparatus being connected to a network via its communication circuitry, the apparatus further comprising computer-executable instructions stored in the memory of the apparatus which, when executed by the processor of the apparatus, cause the apparatus to perform operations comprising:
- decoding a physical slot format indicator channel to obtain structure information of a current slot, and decoding a physical control format indicator channel to obtain a size of a downlink control region, the structure information of the current slot comprising at least one of length of the current slot, number of symbols for a downlink transmission region, and number of symbols for an uplink transmission region;
determining, according to the slot structure and the size of the downlink control region, a first tier search space;
blindly decoding multiple physical downlink control channel candidates within the first tier search space;
checking each of the physical downlink control channel candidates within the first tier search space for a first match with an identifier associated with the apparatus; and
determining, from a matching physical downlink control channel candidate of the first tier search space, a second tier search space.
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Accused Products
Abstract
New radio download numerology allocation information may be obtained through master information block data, system information block data, radio resource control signals, or signals or a physical downlink numerology indication channel, and used along with a reference signal detected in a search space to obtain resource element positions in an antenna port reference signal in a resource block that belongs to a particular band slice according to a reference signal allocation scheme for a band slice numerology. A physical download control may then be decoded based upon one or more resource elements of the reference signal, allowing the connection of, e.g., an enhanced mobile broadband, massive machine type communication, or ultra-reliable/low-latency application to a communications network thereby. Alternatively, multiple physical downlink control channels may be blindly demodulated at each of a number calculated reference signal locations, and one channel selected based on passing a cyclic redundancy check.
49 Citations
18 Claims
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1. An apparatus comprising a processor, a memory, and communication circuitry, the apparatus being connected to a network via its communication circuitry, the apparatus further comprising computer-executable instructions stored in the memory of the apparatus which, when executed by the processor of the apparatus, cause the apparatus to perform operations comprising:
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decoding a physical slot format indicator channel to obtain structure information of a current slot, and decoding a physical control format indicator channel to obtain a size of a downlink control region, the structure information of the current slot comprising at least one of length of the current slot, number of symbols for a downlink transmission region, and number of symbols for an uplink transmission region; determining, according to the slot structure and the size of the downlink control region, a first tier search space; blindly decoding multiple physical downlink control channel candidates within the first tier search space; checking each of the physical downlink control channel candidates within the first tier search space for a first match with an identifier associated with the apparatus; and determining, from a matching physical downlink control channel candidate of the first tier search space, a second tier search space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus comprising a processor, a memory, and communication circuitry, the apparatus being connected to a network via its communication circuitry, the apparatus further comprising computer-executable instructions stored in the memory of the apparatus which, when executed by the processor of the apparatus, cause the apparatus to perform operations comprising:
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defining a Physical Slot Format Indicator Channel (PSFICH), the PSFICH providing information associated with a current slot; encoding the PSFICH at a coding rate; and transmitting the PSFICH in transmit diversity mode, wherein the information comprises at least one of a length of the slot, a number of symbols for a downlink transmission region, and a number of symbols for an uplink transmission region. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification