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US 9,853,753 B2Granted
Repair method and device for missing detection of control channel
AssigneeHuawei Technologies Co., Ltd.
InventorJun Lu
Life of this patent
Estimating the term…
Abstract
Embodiments provide a repair method for missing detection of a control channel and relate to the field of communications. The method includes detecting whether a user equipment misses detecting a physical downlink control channel. After it is detected that the user equipment misses detecting the physical downlink control channel, a repair is performed using a repair policy.
Claims16
A method, comprising:
- sending, by a base station, a physical downlink control channel (PDCCH) signal to a user equipment (UE) to indicate usage conditions of uplink and downlink transmission resources;
- receiving, by the base station, a physical uplink shared channel (PUSCH) signal sent by the UE according to the PDCCH signal;
- performing, by the base station, a cyclic redundancy check (CRC) verification on the PUSCH signal;
- comparing, by the base station, a predetermined uplink reference signal received power (RSRP) with a threshold, and comparing, by the base station, a predetermined uplink signal to interference plus noise ratio (SINR) with an another threshold, in response to the CRC verification being incorrect;
- and
- determining, by the base station, that the UE missed detecting the PDCCH signal in response to the predetermined uplink RSRP being lower than the threshold and the predetermined uplink SINR being lower than the another threshold;
- and
- after determining that the UE missed detecting the PDCCH signal, discounting, by the base station, a CRC verification error determined in a first transmission time interval (TTI) in not acknowledge (NACK) statistics, wherein the first TTI is a corresponding TTI when it is determined that the UE missed detecting the PDCCH.
5 more elements
An apparatus, comprising:
- a transmitter, configured to send a physical downlink control channel (PDCCH) signal to a user equipment (UE) to indicate usage conditions of uplink and downlink transmission resources;
- a receiver, configured to receive a physical uplink shared channel (PUSCH) signal sent by the UE according to the PDCCH signal;
- a processor;
- and
- a computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
- performing a cyclic redundancy check (CRC) verification on the PUSCH signal, comparing a predetermined uplink reference signal received power (RSRP) with a threshold, and comparing a predetermined uplink signal to interference plus noise ratio (SINR) with an another threshold, in response to the CRC verification being incorrect, and determining that the UE missed detecting the PDCCH signal in response to the predetermined uplink RSRP being smaller than the threshold and the predetermined uplink SINR being smaller than the another threshold;
- and
- after determining that the UE missed detecting the PDCCH signal, discounting, a CRC verification error determined in a first transmission time interval (TTI) in not acknowledge (NACK) statistics, wherein the first TTI is a corresponding TTI when it is determined that the UE missed detecting the PDCCH.
5 more elements
A non-transitory computer-readable medium comprising instructions, that when executed by a processor, cause the processor to:
- send a physical downlink control channel (PDCCH) signal to a user equipment (UE) to indicate usage conditions of uplink and downlink transmission resources;
- receive a physical uplink shared channel (PUSCH) signal sent by the UE according to the PDCCH signal;
- perform a cyclic redundancy check (CRC) verification on the PUSCH signal;
- compare a predetermined uplink reference signal received power (RSRP) with a threshold, and compare a predetermined uplink signal to interference plus noise ratio (SINR) with an another threshold, in response to the CRC verification being incorrect;
- determine that the UE missed detecting the PDCCH signal in response to the predetermined uplink RSRP being lower than the threshold and the predetermined uplink SINR being lower than the another threshold;
- and
- after determining that the UE missed detecting the PDCCH signal, discount a CRC verification error determined in a first transmission time interval (TTI) in not acknowledge (NACK) statistics, wherein the first TTI is a corresponding TTI when it is determined that the UE missed detecting the PDCCH.
4 more elements
Dependencies are inferred from the claim text.