189 results about "Maximum bit rate" patented technology

A Common radio resource management method is performed in a mobile radio communication network employing different radio access technologies that overlap over a geographic area subdivided into cells belonging to the domains of respective controllers which are connected to each other in overlapping or adjacent domains and to a core network by means of relevant interfaces. The controllers calculate new traffic-related Information Elements to be exchanged over the existing interfaces to the aim of planning handovers and/or cell reselections towards adjacent cells either of the same or different RAT. Cell capabilities and mobile terminal capabilitiess being also specified by respective IEs. Diversely from the conventional traffic-related IEs based on Cell Load parameters or Free Capacity, the new IEs include indications of the “availability” of bearer services in the cell in terms of maximum bitrate, either guaranteed or not guaranteed, that can currently be allowed to each bearer service.

An apparatus in a digital network receives at least one input transport stream having a plurality of PID streams and outputs at least one transport streams. The apparatus demultiplexes the at least one input transport streams and determines whether to: decrypt packets included in the at least one input transport stream; statistically multiplex a group of PID streams included in the at least one input transport stream; and encrypt packets included in the at least one input transport stream.

The present invention provides a method and system for providing a bandwidth allocation scheduler for media delivery. The present invention includes determining an available bandwidth for file transmission for a time interval, and allocating at least a portion of the available bandwidth to at least one file transmission task, wherein a different amount of the available bandwidth may be allocated to each of the at least one file transmission tasks. The bandwidth allocation scheduler in accordance with the present invention comprises a set of program segments that provides fast, deterministic real-time scheduling for the allocation of bandwidth for file transmissions. It allows the bandwidth allocated to a delivery to vary according to the amount of bandwidth available. A different amount of bandwidth may be allocated to each individual file transmission task. Higher priority transmissions may be allocated bandwidth before allocation to lower priority file transmissions. The maximum bit rate of the slowest addressed receiver may be considered in allocating the bandwidth. Moreover, the customer can choose between different allocation strategies. Thus, the bandwidth allocation scheduler in accordance with the present invention reduces waste in bandwidth in media delivery, which in turn reduces costs for a customer.

A method of signaling in a wireless communication system (300) comprising a first network element (310) serving a wireless communication unit (325) with at least one packet data network (PDN) connection. The method comprises transmitting, by the first network element (310) to the wireless communication unit (325), a signaling message relating to a wireless communication unit (325) uplink (UL) PDN transmission, where the signaling message comprises a parameter indicative of at least one aggregate maximum bit rate (AMBR) value.

A video signal is encoded in a progressive video coder so as to generate a progressive coded video bit stream for transmission over a heterogeneous network. The progressive coded video bit stream is configured so as to be decodable at any one of a series of increasing bit rates up to a maximum bit rate, depending on which of a number of corresponding portions of the progressive coded video bit stream are received by a decoder. Each of the portions is associated with a different bit rate, and one or more of the portions may each also be associated with different values of other parameters such as frame rate, spatial resolution, and peak signal-to-noise ratio. Each of the series of increasing bit rates produces progressively better reconstructed video quality at an output of the decoder. The progressive coded bit stream is transmitted over a first part of the heterogeneous network at a first one of the bit rates. One or more selected portions of the progressive coded video bit stream are then transmitted from the first part of the heterogeneous network to a second part of the heterogeneous network. The selected portions are associated with a second one of the bit rates lower than the first bit rate, and may be selected based on an error detected in the transmission over the first part of the heterogeneous network, and/or a characteristic of the second part of the heterogeneous network. The invention provides efficient bit rate scalability and adaptability and is particularly well-suited for use in conjunction with transmission over heterogeneous wired-to-wireless networks.

PCT No. PCT/FI96/00409 Sec. 371 Date Jan. 9, 1998 Sec. 102(e) Date Jan. 9, 1998 PCT Filed Jul. 11, 1996 PCT Pub. No. WO97/03403 PCT Pub. Date Jan. 30, 1997The invention relates to methods, transmitters and transceivers for transmitting a user signal, particularly a speech or video signal on a circuit-switched connection in a cellular radio network when the bit rate of the user signal varies during transmission. The transmitter comprises a source (2) of a variable bit rate user signal, such as speech or video encoder, and a channel encoder (3) and a radio transmitter unit (7) having an adjustable transmitting power. The capacity allocated for the circuit-switched connection corresponds to the maximum rate of the user signal. The channel encoder (3) has, for the maximum bit rate of the user signal, a first, relatively the least efficient channel coding or no channel coding at all, and for each lower bit rate of the user signal a relatively more efficient channel coding that utilizes the capacity of the circuit-switched connection, released by the lower transfer rate, for improving the interference tolerance of the connection. The transmitting power of the radio transmitter unit depends on the channel coding used by the channel encoder so that the transmitting power is reduced with the increased efficiency of the channel coding, while the bit-error-rate remains substantially constant. This results in a lower average power level and thus in a reduced interference level in the cellular network.

A method of encoding a coding tree unit in a video bitstream. A plurality of candidate configurations are formed for the coding tree unit, each of the candidate configurations having a variation of at least one of a set of partitioning modes and encoding parameters. A candidate configuration is selected from the plurality of candidate configurations based on a predetermined maximum bit rate for the coding tree unit, the selected candidate configuration having a size within the predetermined maximum bit rate. The coding tree unit is encoded using the selected candidate configuration.

A method and device for delivering multimedia data using IETF QoS protocols. MPEG media data can be transmitted in packet units through a network using the IETF QoS protocol by mapping MPEG media traffic factors onto IETF QoS traffic factors. By encoding or transcoding MPEG media traffic according to a double leaky bucket condition indicated by the four factors, a maximum bit rate, a first buffer size, a guaranteed bit rate, and a second buffer size, the MPEG media traffic factors may be transmitted using the IETF QoS protocol without having to go through the process of being mapped onto QoS traffic factors.

The invention is applicable to the field of streaming media technology, provides a bit rate control method and system based on VBR video encoding. The method comprises the steps of recording encoding information for each previously encoded frame; initializing encoding parameters of a current frame according to the encoding information and an average bit rate of video encoding; setting a maximum bit rate for the current frame based on a distortion optimization algorithm; encoding the current frame in a multi-path manner based on the encoding parameters and the maximum bit rate; estimating an encoding bit rate generated by a current path encoding of the current frame, and determining whether the encoding bit rate exceeds the maximum bit rate; and if so, conducting a next path encoding after the encoding parameters is adjusted until the encoding bit rate of the current frame does not exceed the maximum bit rate. In this way, requirements in terms of bit rate control and video quality can be effectively balanced, control of the maximum bit rate can allow an internal timing sequence of a player to be smoother, and smooth playing of a video program is facilitated.

The invention discloses a method, a system and a device for resource allocation, which are used for realizing resource allocation for a non-GBR type bearer under the AMBR mechanism in an EPS system. The method for resource allocation comprises: a packet data network gateway (PDN GW) and an evolved node base station (eNB) acquire aggregate maximum bit rate (AMBR) using regulations which comprise the relative weight coefficient of non-guaranteed bit rate (non-GBR) type service quality classification identification (QCI); and the PDN GW and the eNB are used for resource allocation for the non-GBR type bearer between a user terminal and a packet data network (PDN) according to the AMBR using regulations. The invention also discloses a PCRF device, a PDN GW and an eNB. The method, the system and the device are used for the resource allocation for the non-GBR type bearer between a UE and a PDN.

The present invention discloses a bearer establishing method and system based on handover, wherein the method comprises: an MME transmits the handover required message to the target base station, and carries aggregate maximum bit rate information, namely AMBR information of the UE in the handover required message. In virtue of the above technical scheme, the AMBR information is transmitted to the target base station through the interface S1-MME from the MME when the handover through the MME happens, so that the target base station can obtain the AMBR information and achieve the establishment of the bearers.

The invention discloses a modification undertaking system. After a mobile management entity (MME) receives the modified access point name- aggregate maximum bit rate (APN-AMBR), the sum of the APN-AMBR of all activated APNs and the minimum value of the signed user equipment-aggregate maximum bit rate (UE-AMBR) are adopted as the newly set UE-AMBR; when the newly set UE-AMBR is inconsistent with the originally set UE-AMBR, a downlink network attached storage (NAS) transmission message which is sent by the MME to an evolved Node B (eNodeB) carries the newly set UE-AMBR; and the eNodeB modifies the UE-AMBR according to the newly set UE-AMBR in the downlink NAS transmission message. The invention simultaneously discloses a modification undertaking method. Through the scheme of the invention, when the modification is undertaken, the independent modification to the context of the UE does not need to be carried out, so that the chance of network signaling interaction and failure in modification undertaking is reduced.

The embodiment of the invention provides a data transmission rate control method, device and system. The method comprises the following steps: receiving user equipment (UE) aggregate maximum bit rate (AMBR) information sent by a relay node (RN); acquiring an uplink data transmission rate control value and a downlink data transmission rate control value of a link from the RN to a Donor E-UTRAN Node B (DeNB); and controlling the downlink data transmission rate of the link between the RN and the DeNB. The embodiment of the invention ensures that UE-AMBR control on radio resources of the link from the RN to the DeNB is realized, redundant data transfer in a Un port is reduced and the radio resources are saved.

In session data and a method for establishing a session in a synchronous wireless communication system in accordance with the present invention, by additionally defining a maximum bit rate parameter of the EVRC such that the maximum rate can be varied according to circumstances and conditions of a wireless network, the capacity of the wireless network is expanded and therefore more efficiently used. Services can be flexibly implemented according to the circumstances and conditions of the wireless network by using the maximum bit rate parameter for increasing or decreasing the bandwidth of the wireless network.

A multiple-user multiple input-multiple output wireless communication system uses a set of multiple subcarriers arranged in plural subsets or resource blocks. Precoding of signals transmitted from a base station to user terminals involves acquiring channel state information on the connection channel between the base station and user terminals in the plurality. Channel quality indicators are detected with user terminals for respective subsets of resource blocks to produce user/resource block pairs having associated channel quality indicators. The user/resource block pairs are subjected to selection as a function of the channel quality indicators associated therewith so that precoding is performed by acquiring channel state information exclusively for the user/resource block pairs surviving the selection as a function of the channel quality indicators and, possibly, other selection steps as a function of other parameters, such as, speed, maximum bit rate, and direction of arrival or angular spread in a multiple-stage selection process.

The present invention relates to a method and a communication system for transmission of multimedia streams. Multimedia streams are transmitted in the communication system from a sending communication device to a receiving communication device at least partly via a wireless communication network. Information about the multimedia stream is transmitted to the receiving communication device comprising at least one parameter of the transmission of the multimedia stream for reservation of network resources. The parameter is the maximum bit rate which is needed for the transmission or the maximum service data unit size to be used in the transmission. It is also possible that both the mentioned parameters will be transmitted as attributes of the session description protocol. In an advantageous embodiment the receiving communication device informs the sending communication device about the QoS profile parameters which the wireless communication network granted for the transmission.

The embodiment of the invention relates to a parameter acquisition method, which comprises the steps of acquiring an aggregate maximum bit rate (AMBR) parameter of user equipment (UE) and acquiring the information of a service controlled by the AMBR. The embodiment of the invention also relates to a rate control method, which comprises the steps of: acquiring the AMBR parameter of the UE and controlling non-GRB service data rate on the basis of the acquired AMBR parameter. The parameter acquisition method and relevant equipment in the embodiment ensure that the authorized AMBR parameter is sent through an IU (International Unit) interface in a UMTS (Universal Mobile Telecommunications System) or a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system, thereby being convenient for acquiring the AMBR parameter. Moreover, the rate control method and the relevant equipment of the embodiment realize the sharing of rate authorization by utilizing the AMBR parameter to control a non-GRB service data rate.

Embodiments of the present invention provide a bandwidth control method, apparatus, and system. The method includes: receiving an access request message sent by a user equipment; obtaining, according to the access request message, a group identity of a group to which the user equipment belongs and group-aggregate maximum bit rate parameter information of the group to which the user equipment belongs, so that a bandwidth control device performs bandwidth control on a user equipment in the group according to the group identity and the group-aggregate maximum bit rate parameter information.

A method for controlling bandwidth allocation of first and second data packet types (e.g. TCP traffic, real time traffic, VOIP traffic) in a single rate network by determining, by a device, a throughput rate of the first data packet type (e.g. TCP traffic, non-real time traffic, . . . ) in the network and reducing, by the device, the throughput rate of the first data packet type when the throughput rate reaches a predetermined level is described. A method for controlling bandwidth allocation of each of a plurality of data packet categories in a multi-rate network by determining, by a device, a throughput rate of one of a plurality of data packet categories/classes (the jth data packet category) and reducing the throughput rate of the jth data packet category when the throughput rate reaches a predetermined level, wherein a maximum bit rate of a data packet category is based on a distance between members of the data packet category and the device and wherein said jth data packet category transmits TCP packets, is described. In a particular embodiment, transmission control of the rate is carried out depending on the distance from the device user to the device (e.g. an Access point of a WLAN).