Abstract:
The present invention provides methods for improving performance and reducing power consumption in a dual subscriber identification module (SIM) dual standby (DSDS) device. According to one example embodiment, the DSDS device enhances the usage of a single RF resource to be shared between a first SIM and a second SIM of the DSDS device based on one or more entry and exit conditions. The DSDS device allows the first SIM to use the RF resource for a data session while it restricts the second SIM from performing neighbor cell measurements when entry conditions are met. By restricting the neighbour cell measurement operations on the second SIM, the DSDS device enables the first SIM to use the RF resource for an extended time thereby improving data rates in the DSDS device. Further, the DSDS device allows the second SIM to perform neighbor cell measurements when the exit conditions are met.
Abstract:
A method performed by a multi-subscriber identity module (MUSIM) user equipment (UE) for continuing operation of the MUSIM UE in a first mode, the MUSIM UE including a first SIM and a second SIM, and the method including transmitting, by the MUSIM UE, an uplink signalling message in response to determining a trigger condition has been satisfied, the uplink signalling message including one of compatible band information for the first SIM and the SIM, or one or more other stacks serving band information associated with the second SIM, receiving, by the MUSIM UE from a network, a radio resource control (RRC) reconfiguration signalling message for performing at least one activity at the first SIM in response to the transmitting the uplink signalling message, and performing, by the MUSIM UE, the at least one activity based on the RRC reconfiguration signalling message.
Abstract:
Methods and apparatuses are provided for releasing a radio resource control (RRC) connection in a wireless communication network. A user equipment (UE) monitors the RRC connection. The UE performs a local RRC connection release when the UE has failed to receive an RRC connection release message from a network based on a predefined criterion. The RRC transmits an RRC connection release indication to the network. A first subscriber identity module (SIM) is transitioned from an RRC connected mode to an RRC idle mode.
Abstract:
A method for providing IDLE mode multimedia broadcast multicast service (MBMS) continuity in a telecommunication network is provided. The method includes providing an MBMS of interest for a user equipment (UE) from a first cell in the telecommunication network, using an MBMS gateway, performing a cell re-selection measurement of at least a second cell using the UE, the second cell being a neighboring cell to the first cell, wherein the cell re-selection measurement comprises determining a configuration of the second cell to facilitate an MBMS and determining a signal strength matching a predetermined strength value, and selecting one of the first cell and the second cell using the UE, which is configured to facilitate the MBMS and has a signal strength value at least equal to the predetermined strength value and greater than the other cell.
Abstract:
A method of adaptively reporting buffer status by a dual subscriber identity module dual standby (DSDS) terminal is provided. The method includes computing a rate at which uplink (UL) grants are allocated by a network over a period of time for a first subscriber unit associated with the DSDS terminal, determining a first time period to initiate buffer status reporting (BSR) using a radio frequency (RF) unit, wherein the first time period corresponds to a time period in which a BSR interval initializes, determining a second time period in which a second subscriber unit associated with the DSDS terminal requires the RF unit, and adaptively reporting the buffer status based on the rate and a difference between the second time period and the first time period.
Abstract:
Apparatuses (including, but not limited to, user equipment (UE) and base stations, such as evolved Node Bs (eNBs)), systems, and methods for managing resource allocation and utilization for multi-hop device to device (D2D) communication are described. In one method, a UE sends a request to a network for a resource by which the UE can perform initial device discovery in order to perform D2D communication. If available, the network grants the resource and the UE performs initial device discovery using the resource, which includes calculating communication metrics. The UE then sends information based on the initial device discovery to the network which, based at least on that information and if available, sends back a grant for a resource for device discovery. The UE uses the grant to perform device discovery, which includes re-calculating the communication metrics.
Abstract:
A method and system to decode PDCCH in LTE advanced systems is disclosed. The method adds the adjacent carrier information as LTE-Advanced bits in the PDCCH. The method proposes two approaches such as circular linked list and scrambled approach in adding the adjacent carrier information in the PDCCH. These approaches provide information of all the scheduled PDCCH for an UE. A circular linked list informs the starts position of adjacent PDCCH where UE has its data. Scrambling approach has all the scheduled PDCCH information in current carrier with different scrambling code which is known by the UE. Therefore, by decoding only current carrier UE knows PDCCHs that are scheduled for its data. The method reduces the complexity to a great extent with increase in little overhead.