Patent application number | Description | Published |
20090221250 | METHODS AND APPARATUS FOR HANDLING A SIGNALING MESSAGE THE RELATES TO TRANSMISSION RATE RESTRICTIONS - A method for handling a signaling message that specifies transmission rate restrictions may include operating in a first state. The method may also include receiving the signaling message from a network. The signaling message may include an activation time, the transmission rate restrictions and the control duration. The method may also include receiving a state transition trigger to operate in a second state. The method may also include determining the user equipment's behavior regarding the transmission rate restrictions upon receiving the state transition trigger. | 09-03-2009 |
20090316603 | METHOD AND APPARATUS FOR MANAGING SYSTEM INFORMATION MODIFICATION IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described that facilitate improved management of a system information modification in a wireless communication environment. Various techniques can be utilized as described herein to provide respective users with information indicative of changes to specific blocks or elements within a set of system information, thereby simplifying and accelerating acquisition of new system information after a modification. In a first example, a bitmap is generated and transmitted upon a system information modification that indicates which blocks(s) and/or element(s) of the system information changed in the modification, thereby allowing an associated user to abstain from reading or processing unchanged system information. In a second example, respective block(s) and/or element(s) of the system information can include an internal value tag that indicates to a receiving entity whether the corresponding block(s) or element(s) have changed, thereby allowing a user to discard unchanged block(s) or element(s) without performing further processing. | 12-24-2009 |
20100172297 | METHOD AND APPARATUS FOR CELL BARRING IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate cell barring based on erroneous messages received within a wireless communication system. As described herein, in the event that a device fails to receive and/or decode respective messages transmitted from a network cell over a common communication channel, the device can implement one or more error handling procedures as described herein to reselect away from the network cell and/or a frequency associated with the network cell (e.g., as if the network cell was explicitly barred). Cell barring can be triggered as described herein based on a count of erroneous messages (e.g., consecutive messages, messages received within a predetermined time window, etc.), elapsed time between erroneous messages, or the like. Further, cell barring can be performed as described herein based on failure to acquire pre-scheduled system information, common system information determined to have invalid abstract syntax, or the like. | 07-08-2010 |
20110117912 | SYSTEM INFORMATION COLLECTION WHILE CAMPING ON A CELL - Systems and methodologies are described that facilitate collecting consistent system information when entering a cell during cell selection and/or cell re-selection in a wireless communication environment. SIB(s) can be received while lacking modification period information (e.g., modification period boundary, modification period duration, . . . ). Further, the SIB(s) can be stored in memory with corresponding SFN(s) at which the SIB(s) are respectively received. Thereafter, the modification period information can be identified (e.g., from a SIB | 05-19-2011 |
20110243051 | Methods and Apparatus For Service Continuity In A Communication Network - Methods and apparatus for service continuity in a communication network. A method includes receiving a service in a first network coverage area, detecting entry into a second coverage area, acquiring control signaling information of the second coverage area in response to entering into the second coverage area, establishing traffic channels in the second coverage area while the service is received from the first coverage area, and switching to receive the service on the traffic channels in the second coverage area so that service disruption is minimized. Another method includes receiving a service in a first network coverage area, acquiring control signaling information associated with other coverage areas while in the first coverage area, detecting entry into a second coverage area, establishing traffic channels in the second coverage area, and switching to receive the service on the traffic channels in the second coverage area so that service disruption is minimized. | 10-06-2011 |
20120087239 | METHODS AND APPARATUS FOR HANDLING A SIGNALING MESSAGE THAT RELATES TO TRANSMISSION RATE RESTRICTIONS - A method for handling a signaling message that specifies transmission rate restrictions may include operating in a first state. The method may also include receiving the signaling message from a network. The signaling message may include an activation time, the transmission rate restrictions and the control duration. The method may also include receiving a state transition trigger to operate in a second state. The method may also include determining the user equipment's behavior regarding the transmission rate restrictions upon receiving the state transition trigger. | 04-12-2012 |
20130142053 | METHOD AND AN APPARATUS TO OPTIMIZE MONITORING FOR A NEW EMBMS SESSION IN LTE NETWORKS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus is configured to monitor for a notification of MCCH information change associated with an MBSFN area without having previously performed an MCCH information acquisition procedure to acquire MCCH information in the MBSFN area. Furthermore, the apparatus is configured to acquire the MCCH information while monitoring for the notification of the MCCH information change that indicates a change of MCCH information. | 06-06-2013 |
20130155881 | PRIORITIZING INTER-FREQUENCY/INTER-RAT MEASUREMENTS AND EMBMS IN LTE - A method, an apparatus, and a computer program product for wireless communication are provided for prioritizing the performance of measurements during measurement gaps and the reception of multicast/broadcast content. The apparatus receives a configuration from a serving cell to perform a measurement during a measurement gap of a unicast service while in a connected mode. In addition, the apparatus determines whether to refrain from leaving the serving cell on a first frequency and performing the measurement on a second frequency of a neighboring cell in order to receive multicast/broadcast content associated with a multicast/broadcast service during the measurement gap. | 06-20-2013 |
20130183973 | CELL RESELECTION BASED ON MULTIMEDIA BROADCAST MULTICAST SERVICE (MBMS) METRICS - A method for cell reselection by a wireless communication device is described. The method includes camping on a serving cell in idle mode. A neighbor cell is detected. A serving cell rank is computed for the serving cell. A neighbor cell rank is computed for the neighbor cell based on multimedia broadcast multicast service metrics. Cell reselection is determined based on the serving cell rank and the neighbor cell rank. | 07-18-2013 |
20130242716 | METHOD AND APPARATUS FOR HANDLING RADIO LINK FAILURE IN LTE EMBMS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE may detect a multicast/broadcast radio link failure based on at least one of decoding errors, lost or error packets/segments, or failure to receive a multicast/broadcast channel for a time period greater than a threshold, and recover from the detected multicast/broadcast radio link failure upon detecting the multicast/broadcast radio link failure. | 09-19-2013 |
20130254611 | RECOVERING DATA IN MULTIMEDIA FILE SEGMENTS - This application relates to systems and methods for recovering data in multimedia file segments. A communication device may receive a multimedia file segment that includes damaged data. The communication device may replace the damaged data with dummy data to reconstruct the multimedia file segment. The communication device may then play the reconstructed multimedia file segment. Thus, by replacing the damaged data with dummy data, the communication device may play a multimedia file segment even when part of the segment may be damaged. | 09-26-2013 |
20130258934 | EMBMS SERVICE ACTIVATION AND MAINTENANCE PROCEDURE IN MULTI-FREQUENCY NETWORKS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a user service description (USD) message. When a frequency indicated in the USD message is not a current frequency, the apparatus determines that a system information message is received, determines that the frequency indicated in the USD message is included in the system information message, determines that the frequency is a neighboring cell frequency, sets a priority of the frequency to a highest priority, and measures a signal strength of the frequency when the frequency is included in the system information message, performs a cell reselection determination procedure based on the signal strength of the frequency, performs cell reselection to the neighboring cell based on a result of the cell reselection determination procedure, and acquires the multicast service in the neighboring cell on the frequency. | 10-03-2013 |
20130260736 | APPARATUS AND METHOD FOR SIGNALING NETWORK CAPABILITIES FOR A WIRELESS DEVICE - Methods and apparatus for wireless communication in a wireless communication network include maintaining a Public Land Mobile Network (PLMN) list and receiving an information request from a network, wherein the information request is associated with configuration parameters associated with the PLMN list. Aspects of the methods and apparatus configuring the UE based on the configuration parameters associated with the PLMN list. Aspects also include replying to the network that the UE is configured with the configuration parameters associated with the PLMN list. | 10-03-2013 |
20130294316 | ACHIEVING FAST EMBMS CHANNEL SWITCHING AND ADDING IN LTE - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a first MTCH. The apparatus stores MBMS control information for at least a second MTCH. The apparatus subsequently determines to receive the second MTCH. The apparatus then accesses the stored MBMS control information for the second MTCH upon determining to receive the second MTCH. The apparatus receives the second MTCH based on the accessed MBMS control information without acquiring the MBMS control information for the second MTCH after the determination to receive the second MTCH. | 11-07-2013 |
20130294318 | EFFICIENT UPDATE OF TMGI LIST IN LTE EMBMS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives at least one MBMS service in at least one MBSFN area. The apparatus receives configuration information on at least one MCCH. The at least one MCCH includes an MCCH unassociated with the at least one MBSFN area. The MCCH unassociated with the at least one MBSFN area is an MCCH associated with an MBSFN area not currently being received by the apparatus. The apparatus constructs a list of TMGIs based on the configuration information. The apparatus updates the list of TMGIs based on at least one of an MCCH change notification message for each of the at least one MCCH or a user service description. | 11-07-2013 |
20130336173 | EMBMS SERVICE CONTINUITY DURING UE MOBILITY - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives an MBMS service from a first cell based on first cell MBSFN service configuration information of the first cell. The apparatus switches from being served by the first cell to a second cell. The apparatus attempts to receive the MBMS service from the second cell by utilizing the first cell MBSFN service configuration information prior to obtaining second cell MBSFN service configuration information of the second cell. | 12-19-2013 |
20140016491 | METHODS AND APPARATUS FOR REPORTING SIGNAL QUALITY IN OVERLAPPING MULTIMEDIA BROADCAST SINGLE FREQUENCY NETWORK (MBSFN) AREAS - Certain aspects of the present disclosure relate to methods and apparatus for reporting signal quality in overlapping Multimedia Broadcast Single Frequency Networks (MBSFN) areas. A UE may determine a signal quality estimate for each of two or more overlapping MBSFN areas based on Signal to Noise Ratio (SNR) information and Modulation and Coding Scheme (MCS) information for the MBSFN area. The UE may then determine a combined signal quality based on the signal quality estimates of the MBSFN areas. | 01-16-2014 |
20140032987 | REPLACING LOST MEDIA DATA FOR NETWORK STREAMING - In one example, a device includes one or more processors configured to determine that data for at least a portion of a segment of media data has been lost after a remaining portion of the segment has been received via a network transmission in accordance with dynamic adaptive streaming over HTTP (DASH), based on the determination, prior to decoding the media data, add default data to the segment to replace the data that has been determined to be lost to form a replacement segment, and output media data of the replacement segment. | 01-30-2014 |
20140177429 | TECHNIQUES FOR REDUCING NETWORK CONGESTION IN A WIRELESS COMMUNICATIONS SYSTEM - Methods, systems, and devices are described for reducing congestion in a wireless communications system. A second connection failure is detected, and a difference between a timestamp of the second connection failure and a timestamp of a first connection failure is calculated. Upon determining that the difference satisfies a first time threshold, information relating to one or more previous connection failures is cleared. A time period is identified. A number of connection failures from a cell that occur during the time period is identified. A determination is made as to whether the number of connection failures satisfies a threshold. Upon determining that the number of connection failures satisfies the threshold, a future connection request may be withheld for a time period. | 06-26-2014 |
20140241180 | EVOLVED MULTIMEDIA BROADCAST MULTICAST SERVICE (eMBMS) INTER-FREQUENCY CELL RESELECTION - A method for inter-frequency cell reselection by a wireless communication device is described. The wireless communication device camps on a serving cell. An evolved multimedia broadcast multicast service (eMBMS) service provided by a neighbor cell is discovered. Inter-frequency parameters of the neighbor cell are measured. It is determined whether to perform an inter-frequency cell reselection based on one or more inter-frequency cell reselection factors. An inter-frequency cell reselection to the neighbor cell is performed. | 08-28-2014 |
20140355507 | ADJUSTING PRIORITY OF MBMS AND FEMTO CELLS - A UE may camp on a femto cell in an idle mode and determine whether the UE has an interest in receiving an MBMS service from an MBMS cell. When the UE has the interest in receiving the MBMS service, the UE adjusts a priority of the MBMS cell on which the MBMS service is provided or a priority of the femto cell such that the priority of the MBMS cell is higher than the priority of the femto cell. Otherwise, the UE refrains from adjusting the priority of the MBMS cell or the priority of the femto cell. | 12-04-2014 |
20140378086 | REESTABLISHMENT PROCEDURE FOR AN EMERGENCY CALL - Traditional rules that apply to cell selection are overridden to allow cell selection on an acceptable cell, in addition to cell selection on a suitable cell. Once a mobile device acquires service on an acceptable cell, mobile device can inform network of the emergency call in progress or initiation of an emergency call, which allows network to perform necessary actions to support the emergency call during establishment/reestablishment. | 12-25-2014 |
20140378087 | REESTABLISHMENT PROCEDURE FOR AN EMERGENCY CALL - Traditional rules that apply to cell selection are overridden to allow cell selection on an acceptable cell, in addition to cell selection on a suitable cell. Once a mobile device acquires service on an acceptable cell, mobile device can inform network of the emergency call in progress or initiation of an emergency call, which allows network to perform necessary actions to support the emergency call during establishment/reestablishment. | 12-25-2014 |
20150049600 | PRIORITIZING FREQUENCIES IN EMBMS MULTI-FREQUENCY DEPLOYMENT DURING RLF/OOS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE receives, from a serving cell, system information including a plurality of SAIs. The UE determines an interest in receiving an MBMS service from at least one cell on one or more candidate frequencies based on the received SAIs. The UE determines that the UE has encountered one of an RLF or an OOS on the serving cell. The UE prioritizes network reestablishment on the one or more frequencies that carry the MBMS service the UE is interested in receiving upon determining the UE encountered the one of the RLF or the OOS. | 02-19-2015 |
20150063193 | METHOD OF ENHANCING USER EXPERIENCE BY USING SYSTEM INFORMATION IN LTE EMBMS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a request to receive a Multimedia Broadcast Multicast Service (MBMS) service associated with a service area identity (SAI) and a second frequency. The apparatus performs inter-frequency cell reselection from a first cell transmitting at a first frequency to a second cell transmitting at the second frequency, the second cell being an inter-frequency neighbor cell to the first cell. The apparatus receives system information from the second cell. The apparatus determines that the second cell transmitting at the second frequency is unassociated with the SAI based on the received system information. The apparatus blacklists the SAI on the second frequency in a blacklist for at least a period of time upon determining that the second cell is unassociated with the SAI. | 03-05-2015 |