BACKGROUND

Field

Aspects of the present disclosure relate generally to wireless communication systems, and more particularly, to aligned listen before talk (LBT) gaps for single operator frame based equipment (FBE) new radio (NR) shared spectrum (NR-SS) networks.

Background

Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and the like. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing the available network resources. Such networks, which are usually multiple access networks, support communications for multiple users by sharing the available network resources. One example of such a network is the Universal Terrestrial Radio Access Network (UTRAN). The UTRAN is the radio access network (RAN) defined as a part of the Universal Mobile Telecommunications System (UMTS), a third generation (3G) mobile phone technology supported by the 3rd Generation Partnership Project (3GPP). Examples of multiple-access network formats include Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, and Single-Carrier FDMA (SC-FDMA) networks.

A wireless communication network may include a number of base stations or node Bs that can support communication for a number of user equipments (UEs). A UE may communicate with a base station via downlink and uplink. The downlink (or forward link) refers to the communication link from the base station to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the base station.

A base station may transmit data and control information on the downlink to a UE and/or may receive data and control information on the uplink from the UE. On the downlink, a transmission from the base station may encounter interference due to transmissions from neighbor base stations or from other wireless radio frequency (RF) transmitters. On the uplink, a transmission from the UE may encounter interference from uplink transmissions of other UEs communicating with the neighbor base stations or from other wireless RF transmitters. This interference may degrade performance on both the downlink and uplink.

As the demand for mobile broadband access continues to increase, the possibilities of interference and congested networks grows with more UEs accessing the long-range wireless communication networks and more short-range wireless systems being deployed in communities. Research and development continue to advance wireless technologies not only to meet the growing demand for mobile broadband access, but to advance and enhance the user experience with mobile communications.

SUMMARY

In one aspect of the disclosure, a method of wireless communication includes determining, by a base station, a plurality of potential transmission bursts within a fixed frame period in a frame-based equipment (FBE) mode network, reserving, by the base station, a plurality of listen before talk (LBT) gaps before a starting position of each burst of the plurality of potential transmission bursts, communicating, by the base station, a location of the plurality of LBT gaps to one or more network entities connected for communication on the FBE mode network, and contending, by the base station, for access to the fixed frame period at a beginning of the fixed frame period.

In an additional aspect of the disclosure, a method of wireless communication includes receiving, by a UE from a serving base station, a location of a plurality of LBT gaps within a fixed frame period on a FBE mode network, refraining, by the UE, from transmissions during the location of the plurality of LBT gaps, and detecting, by the UE, a common control signal from the serving base station at a beginning of the fixed frame period, wherein the common control signal identifies the fixed frame period is available for transmission according to an uplink-downlink configuration.

In an additional aspect of the disclosure, an apparatus configured for wireless communication is disclosed. The apparatus includes means for determining, by a base station, a plurality of potential transmission bursts within a fixed frame period in a FBE mode network, means for reserving, by the base station, a plurality of LBT gaps before a starting position of each burst of the plurality of potential transmission bursts, means for communicating, by the base station, a location of the plurality of LBT gaps to one or more network entities connected for communication on the FBE mode network, and means for contending, by the base station, for access to the fixed frame period at a beginning of the fixed frame period.

In an additional aspect of the disclosure, an apparatus configured for wireless communication is disclosed. The apparatus includes means for receiving, by a UE from a serving base station, a location of a plurality of LBT gaps within a fixed frame period on a FBE mode network, means for refraining, by the UE, from transmissions during the location of the plurality of LBT gaps, and means for detecting, by the UE, a common control signal from the serving base station at a beginning of the fixed frame period, wherein the common control signal identifies the fixed frame period is available for transmission according to an uplink-downlink configuration.

In an additional aspect of the disclosure, a non-transitory computer-readable medium having program code recorded thereon. The program code further includes program code executable by a computer for causing the computer to determine, by a base station, a plurality of potential transmission bursts within a fixed frame period in a FBE mode network, program code executable by the computer for causing the computer to reserve, by the base station, a plurality of LBT gaps before a starting position of each burst of the plurality of potential transmission bursts, program code executable by the computer for causing the computer to communicate, by the base station, a location of the plurality of LBT gaps to one or more network entities connected for communication on the FBE mode network, and program code executable by the computer for causing the computer to contend, by the base station, for access to the fixed frame period at a beginning of the fixed frame period.

In an additional aspect of the disclosure, the non-transitory computer-readable medium of wireless communication is disclosed. The program code includes program code executable by the computer for causing the computer to receive, by a UE from a serving base station, a location of a plurality of LBT gaps within a fixed frame period on a FBE mode network, program code executable by the computer for causing the computer to refrain, by the UE, from transmissions during the location of the plurality of LBT gaps, and program code executable by the computer for causing the computer to detect, by the UE, a common control signal from the serving base station at a beginning of the fixed frame period, wherein the common control signal identifies the fixed frame period is available for transmission according to an uplink-downlink configuration.

In an additional aspect of the disclosure, an apparatus configured for wireless communication is disclosed. The apparatus includes at least one processor; and a memory coupled to the at least one processor. The processor is configured to determine, by a base station, a plurality of potential transmission bursts within a fixed frame period in a FBE mode network, to reserve, by the base station, a plurality of LBT gaps before a starting position of each burst of the plurality of potential transmission bursts, to communicate, by the base station, a location of the plurality of LBT gaps to one or more network entities connected for communication on the FBE mode network, and to contend, by the base station, for access to the fixed frame period at a beginning of the fixed frame period.

In an additional aspect of the disclosure, an apparatus configured for wireless communication is disclosed. The apparatus includes at least one processor, and a memory coupled to the at least one processor. The processor is configured to receive, by a UE from a serving base station, a location of a plurality of LBT gaps within a fixed frame period on a FBE mode network, to refrain, by the UE, from transmissions during the location of the plurality of LBT gaps, and to detect, by the UE, a common control signal from the serving base station at a beginning of the fixed frame period, wherein the common control signal identifies the fixed frame period is available for transmission according to an uplink-downlink configuration.

The foregoing has outlined rather broadly the features and technical advantages of examples according to the disclosure in order that the detailed description that follows may be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. Characteristics of the concepts disclosed herein, both their organization and method of operation, together with associated advantages will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purpose of illustration and description, and not as a definition of the limits of the claims.

