US 11,601,820 B2 · Broadcast control channel for shared spectrum

Abstract

Aspects of the disclosure relate to wireless communication over a shared spectrum carrier utilizing a broadcast, common control channel. The broadcast control channel may be multiplexed with a unicast control channel. Further, a scheduling entity may allocate a semi-static set of resources for the broadcast control channel, providing a shared search space on the shared spectrum carrier. The resource allocation for the shared search space may be based on one or more parameters, which may be cell-specific parameters. This shared search space may include resources distributed across the shared spectrum carrier, or a contiguous set of resources that spans only a portion of the carrier. The broadcast control channel may be configured for high reliability, and may carry time-critical control information relating to access control for the shared spectrum carrier. Other aspects, embodiments, and features are also claimed and described.

Claims32

Dependent claims

A method of wireless communication over a shared spectrum carrier, the method operable at a scheduling entity, the method comprising:

transmitting downlink control information on the shared spectrum carrier, the downlink control information comprising:
a unicast physical downlink control channel (PDCCH) comprising at least one control channel element directed to a specific receiving device;
and
a broadcast PDCCH comprising common control information relating to access control for the shared spectrum carrier, wherein the common control information comprises sensing information relating to the shared spectrum carrier, reservation information for the shared spectrum carrier, a wake-up signal configured to change an operating mode of a receiving device from an idle mode to a connected mode, a sharing status of the shared spectrum carrier, or some combination thereof;
wherein the unicast PDCCH and the broadcast PDCCH are multiplexed together in a single downlink control region of a slot on the shared spectrum carrier, wherein a power of the broadcast PDCCH is boosted relative to the unicast PDCCH prior to multiplexing.

2 more elements

An apparatus configured for wireless communication over a shared spectrum carrier, the apparatus comprising:

a transceiver configured for transmitting a unicast physical downlink control channel (PDCCH) multiplexed with a broadcast PDCCH in a single downlink control region of a slot on the shared spectrum carrier, wherein a power of the broadcast PDCCH is to be boosted relative to the unicast PDCCH prior to multiplexing;
and
a processor communicatively coupled to the transceiver, wherein the processor is configured to utilize the transceiver to send at least one control channel element directed to a specific receiving device over the unicast PDCCH, and to broadcast common control information relating to access control for the shared spectrum carrier over the broadcast PDCCH, wherein the common control information comprises sensing information relating to the shared spectrum carrier, reservation information for the shared spectrum carrier, a wake-up signal configured to change an operating mode of a receiving device from an idle mode to a connected mode, a sharing status of the shared spectrum carrier, or some combination thereof.

A method of wireless communication with a cell over a shared spectrum carrier, the method operable at a scheduled entity, the method comprising:

receiving downlink control information on the shared spectrum carrier, the downlink control information comprising:
a unicast physical downlink control channel (PDCCH) comprising at least one control channel element directed to a specific receiving device;
and
a broadcast PDCCH comprising common control information relating to access control for the shared spectrum carrier, wherein the common control information comprises sensing information relating to the shared spectrum carrier, reservation information for the shared spectrum carrier, a wake-up signal configured to cause a change from an idle mode to a connected mode, a sharing status of the shared spectrum carrier, or some combination thereof,
wherein the unicast PDCCH and the broadcast PDCCH are multiplexed together in a single downlink control region of a slot on the shared spectrum carrier, wherein a power of the broadcast PDCCH is boosted relative to the unicast PDCCH prior to multiplexing.

2 more elements

An apparatus configured for wireless communication over a shared spectrum carrier, the apparatus comprising:

a transceiver configured for receiving a unicast physical downlink control channel (PDCCH) multiplexed with a broadcast PDCCH in a single downlink control region of a slot on the shared spectrum carrier, wherein a power of the broadcast PDCCH is to be boosted relative to the unicast PDCCH prior to multiplexing;
and
a processor communicatively coupled to the transceiver, wherein the processor is configured to utilize the transceiver to receive at least one control channel element directed to a specific receiving device over the unicast PDCCH, and to receive common control information relating to access control for the shared spectrum carrier over the broadcast PDCCH, wherein the common control information comprises sensing information relating to the shared spectrum carrier, reservation information for the shared spectrum carrier, a wake-up signal configured to initiate a change from an idle mode to a connected mode, a sharing status of the shared spectrum carrier, or some combination thereof.

Dependencies are inferred from the claim text.

Broadcast control channel for shared spectrum

Life of this patent

Broadcast control channel for shared spectrum

Life of this patent

Abstract

Claims32