A computer-implemented method, operable on a device in a content delivery network (CDN), wherein the CDN delivers content on behalf of at least one content provider, the device implementing a content delivery (CD) service, the method includes, by the service on the device: receiving a request for a particular resource from a client; determining whether the client includes an optimization support mechanism; when the client includes an optimization support mechanism, providing the client with a first version of the particular resource, optimized, at least in part, for the capabilities of the client in combination with the optimization support mechanism; otherwise providing the client with either (i) an un-optimized version of the particular resource, or (ii) a version of the particular resource optimized, at least in part, for the capabilities of the client without the capabilities of the optimization support mechanism.

A radio frequency (RF) unit, a digital unit, and methods of transmitting and receiving data in a wireless communication system are provided. The digital unit may include: a transceiver configured to receive compressed data from an RF unit, a processor configured to divide a frequency domain and a time domain into a plurality of blocks, set a compression parameter to be applied to each of the plurality of blocks, and expand the received data in units of the blocks based on the set compression parameter, and a memory storing the compression parameter.

Systems, devices and methods for adaptive compression of stored information includes a memory management computing device programmed to monitor a size of a plurality of data structures stored in a data repository. The computing device compares the size of each of a plurality of data structures to a predetermined threshold. When a size of an uncompressed data structure meets the threshold, the memory management computing device calculates a value of a first compression parameter based on a value of a first parameter and a value of a second parameter of each data element of the uncompressed data structure, calculates a value of a second compression parameter based the value of the first parameter of each data element of the uncompressed data structure, generates a compressed data structure based on the value of the first compression parameter and the second compression parameter; and replaces, in the data repository, the uncompressed data structure with the compressed data structure.

Systems, devices and methods for adaptive compression of stored information includes a memory management computing device programmed to monitor a size of a plurality of data structures stored in a data repository. The computing device compares the size of each of a plurality of data structures to a predetermined threshold. When a size of an uncompressed data structure meets the threshold, the memory management computing device calculates a value of a first compression parameter based on a value of a first parameter and a value of a second parameter of each data element of the uncompressed data structure, calculates a value of a second compression parameter based the value of the first parameter of each data element of the uncompressed data structure, generates a compressed data structure based on the value of the first compression parameter and the second compression parameter; and replaces, in the data repository, the uncompressed data structure with the compressed data structure.

A second wireless device may transmit, to a first wireless device, a feedback message indicative of a transition from a first compression state to a second compression state. The first wireless device may transition, based on a state change indication corresponding to the feedback message, from the first compression state to the second compression state. The first wireless device may transmit, to the second wireless device based on the transition from the first compression state to the second compression state, one or more first data packets that are previously compressed based on the first compression state or one or more second data packets that are uncompressed or recompressed based on the second compression state. The one or more second data packets being associated with the one or more first data packets.

An information acquisition method and apparatus, a storage medium, and an electronic apparatus are provided. The method includes: a first network element obtains first acquisition information indication; the first network element determines acquisition indication information corresponding to the first network element according to the first acquisition information indication; and the first network element performs information acquisition and processing according to the acquisition indication information corresponding to the first network element. According to the solution, during the transmission of an information stream, the quality of service of the information stream is guaranteed on a transmission layer and a processing layer by virtue of the acquisition information indication, thereby solving the problems in the related art that an information transmission process is complex and it is difficult to guarantee latency and service quality, and achieving the effects that an information range that can be sensed in the communication system is expanded, the capability of information sensing in the communication system is enhanced, the implementation during the information transmission is simple, the quality of service can be highly guaranteed, and the solution is applicable to multiple kinds of network architectures.

A method for transmitting a broadcast signal, includes compressing headers of Internet Protocol (IP) packets in an IP packet stream to output a compressed IP packet stream, the compressed IP packet stream including Initialization Refresh (IR) packets, a first group of IR-dynamic packets, and compressed IP packets; extracting context information from the compressed IP packet stream, wherein when the context information is extracted only from the IR packets in the compressed IP packet stream, the IR packets are converted to a second group of IR-dynamic packets; building signaling information including the context information; and encapsulating the signaling information into one or more signaling link layer packets and the compressed IP packet stream into link layer packets that are distinct from the one or more signaling link layer packets.

A method for transmitting a broadcast signal, includes compressing headers of Internet Protocol (IP) packets in an IP packet stream to output a compressed IP packet stream, the compressed IP packet stream including Initialization Refresh (IR) packets, a first group of IR-dynamic packets, and compressed IP packets; extracting context information from the compressed IP packet stream, wherein when the context information is extracted only from the IR packets in the compressed IP packet stream, the IR packets are converted to a second group of IR-dynamic packets; building signaling information including the context information; and encapsulating the signaling information into one or more signaling link layer packets and the compressed IP packet stream into link layer packets that are distinct from the one or more signaling link layer packets.

A method by a wireless transmitting device is disclosed for indicating a partial traffic identifier (PTID) or an access category index (ACI) in a header compression element. The method includes generating a frame that includes the header compression element, wherein the header compression element includes a first subfield that is for indicating a PTID of a quality of service (QoS) data frame or an ACI of a QoS management frame and a second subfield indicating whether the first subfield indicates the PTID of the QoS data frame or the ACI of the QoS management frame. The method further includes transmitting the frame through a wireless medium.

A method by a wireless transmitting device is disclosed for indicating a partial traffic identifier (PTID) or an access category index (ACI) in a header compression element. The method includes generating a frame that includes the header compression element, wherein the header compression element includes a first subfield that is for indicating a PTID of a quality of service (QoS) data frame or an ACI of a QoS management frame and a second subfield indicating whether the first subfield indicates the PTID of the QoS data frame or the ACI of the QoS management frame. The method further includes transmitting the frame through a wireless medium.