Identification of colliding UE for grant-free transmission of data and scheduling request based on resource sub-pool assignments for wireless networks

A method comprising:

• determining, by a base station, a hierarchical resource pool configuration to allow each of one or more user devices to use a contention-based grant-free mode to transmit both data and a scheduling request to the base station via different resources, the hierarchical resource pool configuration including a scheduling request pool that includes one or more scheduling request sub-pools, each scheduling request sub-pool including one or more resources to be used by a user device for an uplink transmission of a scheduling request, and a data pool that includes one or more data sub-pools, each of the data sub-pools including one or more resources to be used by a user device for an uplink transmission of data;
• the hierarchical resource pool configuration also including an assignment of each of a plurality of user devices served by the base station to one scheduling request sub-pool and to one data sub-pool, wherein no two user devices are assigned to a same sub-pool in both the scheduling request pool and the data pool to allow the base station to identify a failed user device in which grant-free mode transmissions of both data and a scheduling request from the failed user device collided with transmissions from other user devices;
• and
• sending, by the base station, control information indicating the assignment of each of one or more user devices to a scheduling request sub-pool and a data sub-pool.

An apparatus comprising at least one processor and at least one memory including computer instructions, when executed by the at least one processor, cause the apparatus to:

• determine, by a base station, a hierarchical resource pool configuration to allow each of one or more user devices to use a contention-based grant-free mode to transmit both data and a scheduling request to the base station via different resources, the hierarchical resource pool configuration including a scheduling request pool that includes one or more scheduling request sub-pools, each scheduling request sub-pool including one or more resources to be used by a user device for an uplink transmission of a scheduling request, and a data pool that includes one or more data sub-pools, each of the data sub-pools including one or more resources to be used by a user device for an uplink transmission of data;
• the hierarchical resource pool configuration also including an assignment of each of a plurality of user devices served by the base station to one scheduling request sub-pool and to one data sub-pool, wherein no two user devices are assigned to a same sub-pool in both the scheduling request pool and the data pool to allow the base station to identify a failed user device in which grant-free mode transmissions of both data and a scheduling request from the failed user device collided with transmissions from other user devices;
• and
• send, by the base station, control information indicating the assignment of each of one or more user devices to a scheduling request sub-pool and a data sub-pool.

A computer program product comprising a non-transitory computer-readable storage medium, the computer-readable storage medium storing executable code that, when executed by at least one data processing apparatus, is configured to cause the at least one data processing apparatus to perform a method of:

• determining, by a base station, a hierarchical resource pool configuration to allow each of one or more user devices to use a contention-based grant-free mode to transmit both data and a scheduling request to the base station via different resources, the hierarchical resource pool configuration including a scheduling request pool that includes one or more scheduling request sub-pools, each scheduling request sub-pool including one or more resources to be used by a user device for an uplink transmission of a scheduling request, and a data pool that includes one or more data sub-pools, each of the data sub-pools including one or more resources to be used by a user device for an uplink transmission of data;
• the hierarchical resource pool configuration also including an assignment of each of a plurality of user devices served by the base station to one scheduling request sub-pool and to one data sub-pool, wherein no two user devices are assigned to a same sub-pool in both the scheduling request pool and the data pool to allow the base station to identify a failed user device in which grant-free mode transmissions of both data and a scheduling request from the failed user device collided with transmissions from other user devices;
• and
• sending, by the base station, control information indicating the assignment of each of one or more user devices to a scheduling request sub-pool and a data sub-pool.

A method comprising:

• receiving, by a first user device from a base station, control information indicating an assignment of the first user device to a first scheduling request sub-pool of one or more scheduling request sub-pools, and an assignment of the first user device to a first data sub-pool of one or more data sub-pools;
• wherein the one or more scheduling request sub-pools and the one or more data sub-pools are configured to allow each of one or more user devices to use a contention-based grant-free mode to transmit both data, via a resource of an assigned data sub-pool, and a scheduling request, via a resource of an assigned scheduling request sub-pool, to the base station, wherein no two user devices are assigned to both a same data sub-pool and a same scheduling request sub-pool to allow the base station to identify a failed user device in which grant-free mode transmissions of both data and a scheduling request from the failed user device collided with uplink transmissions from other user devices;
• and
• transmitting, by the first user device using a contention-based grant-free mode, both a first scheduling request via a resource of the first scheduling request sub-pool that is assigned to the first user device and a first data via a resource of the first data sub-pool that is assigned to the first user device.

An apparatus comprising at least one processor and at least one memory including computer instructions, when executed by the at least one processor, cause the apparatus to:

• receive, by a first user device from a base station, control information indicating an assignment of the first user device to a first scheduling request sub-pool of one or more scheduling request sub-pools, and an assignment of the first user device to a first data sub-pool of one or more data sub-pools;
• wherein the one or more scheduling request sub-pools and the one or more data sub-pools are configured to allow each of one or more user devices to use a contention-based grant-free mode to transmit both data, via a resource of an assigned data sub-pool, and a scheduling request, via a resource of an assigned scheduling request sub-pool, to the base station, wherein no two user devices are assigned to both a same data sub-pool and a same scheduling request sub-pool to allow the base station to identify a failed user device in which grant-free mode transmissions of both data and a scheduling request from the failed user device collided with uplink transmissions from other user devices;
• and
• transmit, by the first user device using a contention-based grant-free mode, both a first scheduling request via a resource of the first scheduling request sub-pool that is assigned to the first user device and a first data via a resource of the first data sub-pool that is assigned to the first user device.

A computer program product comprising a non-transitory computer-readable storage medium, the computer-readable storage medium storing executable code that, when executed by at least one data processing apparatus, is configured to cause the at least one data processing apparatus to perform a method of:

• receiving, by a first user device from a base station, control information indicating an assignment of the first user device to a first scheduling request sub-pool of one or more scheduling request sub-pools, and an assignment of the first user device to a first data sub-pool of one or more data sub-pools;
• wherein the one or more scheduling request sub-pools and the one or more data sub-pools are configured to allow each of one or more user devices to use a contention-based grant-free mode to transmit both data, via a resource of an assigned data sub-pool, and a scheduling request, via a resource of an assigned scheduling request sub-pool, to the base station, wherein no two user devices are assigned to both a same data sub-pool and a same scheduling request sub-pool to allow the base station to identify a failed user device in which grant-free mode transmissions of both data and a scheduling request from the failed user device collided with uplink transmissions from other user devices;
• and
• transmitting, by the first user device using a contention-based grant-free mode, both a first scheduling request via a resource of the first scheduling request sub-pool that is assigned to the first user device and a first data via a resource of the first data sub-pool that is assigned to the first user device.