Samsung Electronics Co., Ltd.

Venkateswara Rao Manepalli

Sudhir Kumar Baghel

Mangesh Abhimanyu Ingale

Nitin Jain

Rajavelsamy Rajadurai

Neha Sharma

Akhil Madan Panchabhai

Gert Jan Van Lieshout

Soeng-Hun Kim

Vinay Kumar Shrivastava

Kundan Kumar Lucky

Satya Venkata Uma Kishore Godavarti

Mohan Rao Naga Santha Goli

Anand Devidas Kashikar

Subhasish Karmakar

The present disclosure provides a method and apparatus of handling in-device co-existence interference in a wireless communication environment. In one embodiment, a method includes detecting in-device co-existence interference between a LTE module and an ISM module in user equipment. The method further includes identifying subframes and corresponding HARQ processes in a set of subframes allocated to the LTE module which are affected by the ISM module operation. Additionally, the method includes reserving the remaining subframes and corresponding HARQ processes in the set of subframes for the LTE module operation. Furthermore, the method includes indicating to a base station that the remaining subframes and the corresponding HARQ processes are reserved for the LTE module operation to resolve the in-device co-existence interference. Moreover, the method includes receiving scheduling pattern indicating subframes and corresponding HARQ processes reserved for the LTE operation or derived DRX parameters from the base station based on the indication.

Method and apparatus for handling in-device co-existence interference in a wireless communication environment

A method and an apparatus for handling in-device coexistence interference in a user equipment are provided. The method includes receiving a list of non-serving Long Term Evolution (LTE) frequencies from a base station, configuring the non-serving LTE frequencies so as to perform a measurement on the configured non-serving LTE frequencies, and detecting a likelihood of in-device coexistence interference between at least one of the non-serving LTE frequencies and an Industrial, Scientific and Medical (ISM) frequency when an ISM activity is ongoing on the ISM frequency.

Method and apparatus for communicating ISM prone frequency information to a base station

A method and system for uplink-downlink transmission of message in a network. The method includes establishing, by a user equipment (UE), a security context for data transmission between the UE and a serving gateway in the network; generating, by the UE, in an idle mode, a data message including an encrypted data packet, the encrypted data packet being generated by encrypting a data packet to transmit to the serving gateway based on the security context; transmitting, by the UE, in the idle mode, to a base station (BS), a random access channel (RACH) message including a UE identifier (ID); receiving, by the UE, in the idle mode, from the BS, a contention resolution message including grant information for an uplink (UL) transmission; and transmitting, by the UE, in the idle mode, to the BS, the data message including the encrypted data packet.

Method and system for connectionless transmission during uplink and downlink of data packets

A method and an apparatus for activating and deactivating secondary cells in a carrier aggregation environment are provided. In one embodiment, a Medium Access Control (MAC) Control Element (CE) command is received from a base station for activating/deactivating a secondary cell associated with a User Equipment (UE). The secondary cell configured for the UE is activated/deactivated based on the MAC CE command. Further, a first uplink grant is received from the base station upon activation/deactivation of the secondary cell. Accordingly, quality information (e.g., channel quality information, sounding reference signal information, and the like) associated with the cell(s) is transmitted to the base station in the received first uplink grant over a physical uplink shared channel. Furthermore, a hybrid automatic repeat request entity associated with the secondary cell is reset.

Methods and apparatus for activating and deactivating secondary cells in a carrier aggregation environment

A method and system for uplink-downlink transmission of message in a network. The method includes transmitting, by a user equipment (UE), to a radio access network (RAN) node, a random access channel (RACH) message including identifier information for identifying a serving gateway in a core network; receiving, by the UE, from the RAN node, a random access (RA) response message including uplink (UL) grant information; and transmitting, by the UE, to the RAN node, a data message including encrypted data in an idle mode. The data message is transmitted from the RAN node to the serving gateway based on the identifier information, and the encrypted data is generated by the UE, and the encrypted data is decrypted by the serving gateway.

The present invention relates to a method of configuring a set of Radio Access Network (RAN) parameters including Discontinuous Reception (DRX) configurations for user equipment in a wireless networking system. The method includes determining traffic characteristics associated with user equipment based on the number and types of applications running in it. The method further includes steps of modifying and updating the DRX configurations and the RAN parameters for different situations of wireless transmission and reception. The updated DRX configurations and the RAN parameters for communication with the user equipment results in an efficient power consumption management.

System and a method of configuring radio access network parameters for a user equipment connected to a wireless network system

The present invention provides a method and apparatus of handling in-device co-existence interference in a wireless communication environment. In one embodiment, a method includes detecting in-device co-existence interference between a LTE module and an ISM module in user equipment. The method further includes identifying subframes and corresponding HARQ processes in a set of subframes allocated to the LTE module which are affected by the ISM module operation. Additionally, the method includes reserving the remaining subframes and corresponding HARQ processes in the set of subframes for the LTE module operation. Furthermore, the method includes indicating to a base station that the remaining subframes and the corresponding HARQ processes are reserved for the LTE module operation to resolve the in-device co-existence interference. Moreover, the method includes receiving scheduling pattern indicating subframes and corresponding HARQ processes reserved for the LTE operation or derived DRX parameters from the base station based on the indication.

A method and system for uplink-downlink transmission of data packets in a wireless cellular network, during idle state of User Equipment (UE) using connectionless transmission is disclosed. The method establishes S1 common bearer between a Radio Access Network (RAN) node and Serving Gateway (SGW) and S5 common bearer between the SGW and Packet Data Network Gateway (PGW). The method defines a modified Uu interface between the UE and the RAN node. The method appends data packets with UE Identifier (ID) and routing information as packet header information to independently route data packets through wireless cellular network in a self-sustainable manner using the established common bearers and the modified Uu interface. The method secures data packets by providing integrity and ciphering protection. The method eliminates cost of dedicated bearer set up and reduces signaling overhead on the Uu interface thereby improving network efficiency and battery life of the UE.

A method and system for providing enhanced packet data services to user equipment (UE) is disclosed. The method disclosed comprises: switching to a first Radio Access Network (RAN) from a second RAN when the UE suffers loss of coverage in the second RAN during a mobility of the UE, and transmitting a request to the first RAN when the UE detects the coverage in the second RAN to redirect the UE to the second RAN.

Method and system for providing enhanced packet data services to a user equipment

A method and a system to improve circuit switched fall back (CSFB) performance specified in the 3generation partnership project (3GPP) standard are provided. The system includes a user equipment (UE) to collect a neighbor frequency list from the network along with the redirection frequency transmitted by the long term evolution (LTE) network in response to extended service request (ESR) initiated by the UE. The UE selects the best frequency on which the UE can camp for CS call by applying additional offset criteria over the existing S-criteria during selection of serving frequency that effectively increases CSFB call success rate. The method enables the UE to override timer Tand parameter Nin the radio resource control (RRC) connection establishment process during a CSFB call procedure and effectively utilize the ESR time to attempt maximum possible RRC connection requests.

Method and system for improving circuit switched fall back (CSFB) performance

A method and apparatus for handling in-device co-existence interference in a user equipment are provided. In an exemplary method, a Long Term Evolution (LTE) activity scheduled to be performed during an inactive time period of an LTE module in a user equipment is determined. It is determined whether the LTE module is to be allowed to perform the LTE activity during the inactive time period. If the LTE activity is to be allowed, then the LTE module is allowed to perform the LTE activity during the inactive time period. Otherwise, the LTE module is not allowed to perform the LTE activity during the inactive time period to provide interference free time for an Industrial, Scientific and Medical (ISM) module in the user equipment. Moreover, the disallowed LTE activity is scheduled to be performed during an active time period following the inactive time period.

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Bengaluru, India

Venkateswara Rao Manepalli