Embodiments of the present disclosure propose a method and apparatus for optimizing storage of application data. The method comprises obtaining description information for application data from an application; performing storage optimization based on the description information; and performing at least pan of a storage function to be implemented by the back-end storage device, based on the description information before transmitting application data to the back-end storage device. With the method or apparatus according to the embodiments of the present disclosure, an efficient manner of integrating the application and non-volatile storage device is provided to coordinate the application and storage, thereby improving efficiency and expanding capability.

A robust header compression (ROHC) controller provides for service flow processing of a ROHC channel in a WiMAX wireless communication system. The ROHC controller controls the negotiations of the MS ROHC capabilities during its registration and the negotiations of the ROHC channel parameters during ROHC enabled service flow setup; the MS ROHC capabilities including ROHC compression and decompression capabilities and ROHC channel and feedback strategies; the channel parameter negotiation covers the ROHC profile set and feedback channel information in addition to the 16e/12D standard. The ROHC controller receives a service flow request for a ROHC enabled service flow, wherein the request includes a QoS profile.

Methods, apparatuses, and systems are provided for improving utilization of the communications system through various “deltacasting” techniques for handling content sets (e.g., feeds or websites). In some embodiments, within a client-server context, content sets are anticipatorily pre-positioned in client dictionaries using multicasting techniques to share forward link capacity. Pre-positioning determinations are made according to byte-level data, set-level metadata, and/or user preferences. In some embodiments, when locally stored information from the content sets is requested by a user, deltacasting techniques are used to generate fingerprints for use in identifying and exploiting multicasting and/or other opportunities for increased utilization of links of the communications system.

Systems and methods are disclosed for online distribution of content by receiving, from a user's mobile device, a request for a web page hosted by a publisher's CMS; applying a rules engine to analyze a received URL according to a set of rules identifying one or more website types and/or referrers; if the received URL satisfies the rules engine, redirecting the received request to a syndication server system hosted within a global CDN; adding a URL of the web page to a missing content queue and redirecting the request to the publisher's CMS if the CDN syndication server does not contain a suitable mobile-formatted version of the web page; and delivering a package of binary compressed content of the web page to a stub page cached at the user's mobile device by the CDN syndication server, using recirculation and monetization components chosen by the publisher.

Method and system for lossless and stateless compression scheme is used with a fixed-length data such as frames. Frames having a payload of M bits length are mapped into a payload of N bits length, where N<M. The N bits payload of each received frame is extracted, and mapped using a memory, PLD, or a processor, to reconstruct the uncompressed M bits payload, and to form the original frame. The reconstruction may use a set of N coefficients that are each multiplied by the corresponding received payload bit, and summarized modulo-2 to obtain the original pre-compressed M payload bits. The method and system may be used with a vehicle bus, such as Controller Area Network (CAN). The compressed frames may use the same or different protocol than the uncompressed ones, and may further carry an additional code such as metadata, error detection or correction code, or authentication related code.

A broadcast signal transmission method comprises outputting an RoHC channel that includes one or more RoHC streams and a signaling table that includes information related to header compression by performing header compression for Internet Protocol (IP) packets, which include broadcast data, in accordance with an adaptation mode, a header of each IP packet including an IP header and a User Datagram Protocol (UDP) header, generating at least one first link layer packet that includes the RoHC channel and generating at least one second link layer packet that includes the signaling table, and physical layer processing the at least one first link layer packet and the at least one second link layer packet and transmitting through one or more Physical Layer Pipes (PLPs), wherein the signaling table includes adaptation mode information indicating the adaptation mode, and each RoHC stream in the RoHC channel includes RoHC packets.

A cleanup method and device for a terminal resource and a terminal. The method comprises: receiving a cleanup instruction, and acquiring a resource saved on a terminal according to the cleanup instruction (S101); processing the resource, and saving the processed resource, wherein a storage space occupied by the processed resource is less than a storage space occupied by the resource (S102); and querying whether a resource is saved on a server, if the resource is saved on the server, then displaying deletion prompt information, and deleting the resource according to an operation executed by a user (S103). By means of the cleanup method and device and the terminal, the storage space of the terminal occupied by a resource can be greatly reduced, and at the same time, convenience can be provided for a user to redisplay the resource since it is guaranteed that the corresponding resource is saved on a server before the resource is deleted.

For offloading data to secondary storage, a criteria module checks a migration criteria of a data segment stored in a first data repository. The data segment may be associated with one or more entities. A threshold module determines whether the migration criteria of the data segment satisfies a migration threshold. A migration module migrates the data segment to a second data repository in response to the migration criteria of the data segment satisfying the migration threshold.

A method of selective uplink-only robust header compression (ROHC) mechanism is proposed. The ROHC channel comprises two unidirectional channels, i.e., there is one channel for the downlink and one for the uplink. To solve the uplink resource shortage, ROHC is activated and applied on selective packets of selective uplink flow. Once ROHC configuration is provided by a serving base station, a user equipment (UE) can select certain UL packets to apply ROHC based on a list of conditions. By activating ROHC for UL only and performing ROHC selectively, the compression efficiency can be improved with less UE power consumption and computation complexity.

Disclosed herein are related to communication systems and methods for converting between lossy communication protocol packets and lossless communication protocol packets. In one aspect, the communication system includes a server, a set top box, and an intermediate node. In some embodiments, the intermediate node is configured to receive a lossy communication protocol packet from the server, convert the lossy communication protocol packet to a lossless communication protocol packet, and transmit the converted lossless communication protocol packet to the set top box.