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US 12,114,308 B2Granted
System and method for common control channels in a communications system
AssigneeFuturewei Technologies, Inc.
InventorsPhilippe Sartori, Jianghua Liu, Qiang Wu, Vipul Desai, Weimin Xiao, Brian Classon
Life of this patent
Estimating the term…
Abstract
A method for operating a communications controller includes selecting a search space configuration out of a set of candidate search space configurations for a user equipment served by the communications controller, wherein the search space configuration specifies one or more search spaces to be monitored out of a set of search spaces, and signaling the selected search space configuration to the user equipment.
Claims24
A method, comprising:
- monitoring, by a user equipment (UE), a first search space;
- receiving, by the UE, configuration information, the configuration information indicating a random access channel (RACH) configuration, the RACH configuration including a first set of preambles and a second set of preambles, wherein the first set of preambles corresponds to the first search space, and the second set of preambles corresponds to a second search space;
- transmitting, by the UE, a RACH message in accordance with a preamble from the second set of preambles based on a capability of the UE;
- and
- monitoring, by the UE, the second search space after the transmitting the RACH message based on the capability of the UE.
2 more elements
A method, comprising:
- transmitting, by a base station, a first search space;
- transmitting, by the base station, configuration information, the configuration information indicating a random access channel (RACH) configuration, the RACH configuration including a first set of preambles and a second set of preambles, wherein the first set of preambles corresponds to the first search space, and the second set of preambles corresponds to a second search space;
- receiving, by the base station from a user equipment (UE), a RACH message;
- determining, by the base station, a capability of the UE based on the RACH message;
- and
- communicating, by the base station with the UE, in the second search space based on the determining the capability of the UE.
3 more elements
A user equipment (UE), comprising:
- at least one processor;
- and
- a non-transitory computer readable storage medium storing programming, the programming including instructions that, when executed by the at least one processor, cause the UE to:
- monitor a first search space;
- receive configuration information, the configuration information indicating a random access channel (RACH) configuration, the RACH configuration including a first set of preambles and a second set of preambles, wherein the first set of preambles corresponds to the first search space, and the second set of preambles corresponds to a second search space;
- transmit a RACH message in accordance with a preamble from the second set of preambles based on a capability of the UE;
- and
- monitor the second search space after transmitting the RACH based on the capability of the UE.
5 more elements
A base station, comprising:
- at least one processor;
- and
- a non-transitory computer readable storage medium storing programming, the programming including instructions that, when executed by the at least one processor, cause the base station to:
- transmit in a first search space;
- transmit configuration information, the configuration information indicating a random access channel (RACH) configuration, the RACH configuration including a first set of preambles and a second set of preambles, wherein the first set of preambles corresponds to the first search space, and the second set of preambles corresponds to a second search space;
- receive, from a user equipment (UE), a RACH message;
- determine a capability of the UE based on the RACH message;
- and
- communicate, with the UE, in the second search space based on determination of the capability of the UE.
6 more elements
Dependencies are inferred from the claim text.