Sharing a physical random access channel (PRACH) configuration for avoiding collisions of PRACH communications
AssigneeQUALCOMM Incorporated
InventorsHung Dinh Ly, Punyaslok Purkayastha, Ozcan Ozturk
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first base station may determine collision avoidance information for avoiding collisions of physical random access channel communications from one or more user equipment. The collision avoidance information may include subcarrier spacing information and/or beam correspondence information. The first base station may transmit the collision avoidance information to a second base station. Numerous other aspects are provided.
Claims30
A method of wireless communication performed by a first base station, comprising:
- determining collision avoidance information for avoiding collisions of physical random access channel (PRACH) communications from one or more user equipment (UEs), the collision avoidance information including subcarrier spacing information indicating a first channel state information resource signal (CSI-RS) resource, a first subcarrier spacing, from among a plurality of subcarrier spacings for PRACH, that is used by the first base station for configuring PRACH communications by UEs, and beam correspondence information indicating a first synchronization signal block (SSB) identifier;
- and
- transmitting the collision avoidance information to a second base station.
A method of wireless communication performed by a first base station, comprising:
- receiving, from a second base station, collision avoidance information for avoiding collisions of physical random access channel (PRACH) communications from one or more user equipment (UEs), the collision avoidance information including one or more of subcarrier spacing information indicating a first channel state information resource signal (CSI-RS) resource or beam correspondence information indicating a first synchronization signal block (SSB) identifier;
- determining a PRACH configuration for PRACH communications by the one or more UEs based at least in part on the collision avoidance information, wherein determining the PRACH configuration includes selecting one or more of:
- a different CSI-RS resource than the first CSI-RS resource for the PRACH configuration, or
- a different SSB identifier than the first SSB identifier for the PRACH configuration;
- and
- transmitting the PRACH configuration to the one or more UEs.
A first base station for wireless communication, comprising:
- a memory;
- and
- one or more processors coupled to the memory, the one or more processors configured to:
- determine collision avoidance information for avoiding collisions of physical random access channel (PRACH) communications from one or more user equipment (UEs), the collision avoidance information including subcarrier spacing information, a first subcarrier spacing, from among a plurality of subcarrier spacings for PRACH, that is used by the first base station for configuring PRACH communications by UEs, and beam correspondence information;
- and
- transmit the collision avoidance information to a second base station.
A first base station for wireless communication, comprising:
- a memory;
- and
- one or more processors coupled to the memory, the one or more processors configured to:
- receive, from a second base station, collision avoidance information for avoiding collisions of physical random access channel (PRACH) communications from one or more user equipment (UEs), the collision avoidance information including one or more of subcarrier spacing information indicating a first channel state information resource signal (CSI-RS) resource or beam correspondence information indicating a first synchronization signal block (SSB) identifier;
- determine a PRACH configuration for PRACH communications by the one or more UEs based at least in part on the collision avoidance information, wherein the one or more processors, when determining the PRACH configuration, are configured to select one or more of:
- a different CSI-RS resource than the first CSI-RS resource for the PRACH configuration, or
- a different SSB identifier than the first SSB identifier for the PRACH configuration;
- and
- transmit the PRACH configuration to the one or more UEs.
Dependencies are inferred from the claim text.