Abstract:
Methods and apparatus, including computer program products, are provided for limiting connection setup after a failure. In one aspect there is provided a method. The method may include disconnecting, at a user equipment, a first radio resource control connection due to a failure; and determining, based on a state of at least one of the user equipment or an application included at the user equipment, whether to inhibit, after the failure, a connection setup by the user equipment. Related apparatus, systems, methods, and articles are also described.
Abstract:
An apparatus for minimizing the recovery time of connecting to a network may include a processor and memory storing executable computer code causing the apparatus to at least perform operations including receiving a message including a preparatory handover command indicating one or more candidate target cells for handover and data indicating that the candidate target cells are selectable for handover in response to a future detection of one or more handover conditions. The computer program code may further cause the apparatus to initiate a selection of one of the candidate target cells for handover of an apparatus in response to detection of at least one of the handover conditions. The computer program code may further cause the apparatus to enable handover of the apparatus to the selected candidate target cell. Corresponding methods and computer program products are also provided.
Abstract:
A method includes detecting that at least one trigger condition is satisfied in a mobile station and, in response, transmitting a message requesting that a base station be turned on. The use of the method, as well as corresponding apparatus and computer programs, serves to optimize energy consumption efficiency of wireless communications networks and systems, and contributes to green approaches to network operation.
Abstract:
There is designated a (plural) number m of time intervals of a frame during which a user equipment is to monitor for a page. A parameter is set that specifies a set of the time intervals of the frame. A page is placed for the user equipment within at least one of the time intervals of the set of time intervals of the frame. The user equipment determines a frame in which to monitor for a page, determines from a parameter wirelessly received from a network a specified set of time intervals of the frame during which to monitor for a page (there are a plural number m of time intervals in the set), and monitors the set of time intervals until at least one of: a page is successfully received; or all of the plural number m of time intervals in the set have been monitored for the page.
Abstract:
A network element sets up a connection with an individual user equipment UE, provides an indicator that informs that a particular resource allocation to the individual user equipment is persistent, and sends resource allocations to a plurality of user equipments that includes the particular resource allocation to the individual user equipment. The indication can be implicit in the position of the particular resource allocation within the plurality of resource allocations as arranged during the connection setup, or it maybe explicit with the resource allocation such as from a bit stolen from the CRC field. The persistent allocation can be terminated in multiple ways, including overwriting with a new persistent allocation, sending an end bit or no data, or sending an improper CRC field which is arranged by an absence of both a NACK from the UE and a re-transmission from the network as a terminating condition.
Abstract:
An auxiliary handover message is sent from a target eNB to a UE being handed over from a source eNB. The auxiliary handover message includes a context identifier that is established between the source eNB and the UE, which the source eNB provides to the target eNB during context data exchange when preparing for the handover. The UE uses the context identifier to verify that the auxiliary handover message is valid. Various approaches are detailed for minimizing signaling overhead and minimizing the time the UE must monitor the separate channel for the auxiliary handover message in the event the UE does not properly receive the original handover message from the source eNB. The context identifier may be a random number, a C-RNTI, an eNB-ID, or a token. The auxiliary handover command sent from the target eNB may be the context identifier with or without a copy of the handover command.
Abstract:
Disclosed herein are apparatus, method and computer program product providing 3.9G mobile-assisted cell change. During an active state of user equipment, it is determined whether at least one trigger condition exists. If at least one trigger condition is determined to be present, the user equipment performs an autonomous cell change. Alternatively, if at least one trigger condition is determined not to be present, the user equipment performs a cell change under network control (non-autonomous).
Abstract:
A method includes determining a first time period during which evaluation should be performed of whether a received radio frequency signal meets at least one criterion, the first time period based at least partially on a second time period of discontinuous reception or transmission. The method also includes performing the evaluation of the received radio frequency signal using measurements obtained within the first time period, and determining, based on the evaluation, whether an event should be triggered. The method further includes triggering the event in response to a determination that the event should be triggered.
Abstract:
Interconnected first and second radio access technology (RAT) systems simultaneously communicate with mobile terminals each capable of operating in both the first and second RAT systems. A given mobile terminal is capable of detecting it is within range of an access point of the second RAT while the terminal is in communication with an access point of the first RAT. It exchanges registration signals (412, 414) with the access point of the second RAT and only then does it provide an identification signal (430) indicative of registration therein to the access point of the first RAT. There it is used in determining whether to handover the terminal to the second RAT. Using this approach, there is no need for a complex measurement reporting system and, as another benefit, mobile terminals without dual-RAT capabilities are relieved of unnecessary radio measurements.
Abstract:
This invention describes a new methodology for a cell reselection by a mobile station (MS) for improving network interconnection and interoperability in a limited mobile access environment. The invention is applicable to any kind of networks and their interconnections. The invention describes how the MS can better recover from failed intersystem cell reselection attempts so that there are fewer subsequent failed attempts using two major improvements. First, the MS takes into consideration during cell reselection evaluation and candidate-cell selection, whether the MS had previously been unsuccessful in reselecting the considered cell. This means treating neighbor cells to which the MS had failed reselection before with a lower priority in subsequent cell reselection evaluations. Second, the MS is allowed to stop monitoring and thus, to stop evaluating cells if it was earlier found that the access to those cells is forbidden.