Samsung Electronics Co., Ltd. (Suwon-si, KR)

The present inventions describe an approach to performing handsover with conditional conditions through an UE within a wireless communication network. This could involve receiving an RRC reconfiguration signal from a source cell in the wireless communication network. The RRC reconfiguration message might comprise a handover setup and determining if a CHO configuration is available in the handover configuration. Further, the method may include performing one of: running an RLM timer as well as an RLM procedure on the source cell, when it is determined that the CHO configuration is present in the handover configuration then stopping the RLM timer and suspending the radio link monitoring procedure on the source cell when it is determined that the CHO configuration isn’t present in the handover configuration. The method could then involve executing the CHO from the source cell to the target cell in the wireless communication network in accordance with the configuration of the CHO.

1. Field

The invention is related to wireless communications and, particularly, to a method (and an apparatus for users) for performing conditional handovers in a wireless communications network.

2. Description of related art

To meet the growing demands for wireless data after the introduction of 4th generation (4G) communication systems was put into creating a 5th generation (5G) communication system. The 5G or pre-5Gcommunication system is also known as a `beyond 4G network` or a `post long term evolution (LTE) system`. The 5G system of communication is considered to be implemented with higher frequencies (mmWave) bands, e.g., 60 GHz bands, in order to accomplish higher datarates. Beamforming, massive multi-input multi output (MIMO), full-dimensional MIMO (FDIMO), array antennas beamforming, analog beamforming, and large-scale antenna techniques are all mentioned in connection with 5G communications systems. In addition, in 5G communication systems, development for system network improvement is under way based on advanced small cells, cloud radio access networks (RANs), ultra-dense networks,device-to-device (D2D) communication, wireless backhaul, moving network, cooperative communication, coordinated multi-points (CoMP), reception-end interference cancellation and the like. In the 5G system hybrid frequency shift keying (FSK) and Feher’squadrature amplitude modulation (FQAM) and sliding window superposition coding (SWSC) as an advanced Coding Modulation (ACM) and filter bank multi-carrier (FBMC) and non-orthogonal multi access (NOMA), and sparse code multi access (SCMA) as anadvanced access technology have been created.

The Internet is a human-centric connection network in which humans create and consume information, is currently evolving to the Internet of things (IoT) where distributed entities, such as objects communicate and process data without human intervention. The Internet of everything (IoE), which is a combination of IoT technology and the big data processing technology via connection to a cloud server has come into existence. As technology elements, such as “sensing technology”,”wired/wireless communication and network infrastructure”, “service interface technology”, and “security technology” have been demanded for IoT implementation, a sensor network, a machine-to-machine (M2M) communication, machine type communication (MTC),and so forth have been recently researched. The IoT environment could provide smart Internet technology services that create a new value to humans by capturing and analyzing data generated among connected objects. IoT can be utilized in a variety of sectors, including smart homes, smart cities, smart buildings smart cars or connected cars and smart grids as well as health care and advanced medical services. It is possible to combine the existing technology of technologies, such as information technology (IT), and other industrial applications.

In this regard, various attempts were made to incorporate 5G communication systems into IoT networks. Technology such as MTC, MTC and M2M communication can be implemented with beamforming, MIMO and array antennas. This is an instance of convergence between 5G technology and IoT technology.

Numerous services are offered through the advancement of wireless communications systems, as mentioned above. Thus, a method to easily provide such services is necessary.

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