105results about How to "Improve wireless performance" patented technology

A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so on. The portable computing device can include a single piece housing formed from a radio opaque material with a cover formed from a radio transparent material. To implement a wireless interface, an antenna stack-up can be provided that allows an antenna to be mounted to a bottom of the cover. Methods and apparatus are provided for improving wireless performance. For instance, in one embodiment, a metal housing can be thinned to improve antenna performance. As another example, a faraday cage can be formed around speaker drivers to improve antenna performance.

The present application discloses, inter alia, a system for improving the aggregate throughput of a wireless local area network which includes: at least one access point that is equipped with at least one transceiver configured to simultaneously transmit and receive at multiple frequencies using multiple channels; and the access point being configured to acquire channel conditions of users and to pool sets of users on the channels based on the channel conditions.

A system and method is proposed for progressively quantizing channel state information for application in a MIMO (multiple input multiple output) communication system. A method includes computing an estimate of a communications channel between a subscriber unit and a base station, quantizing the estimate with a first codebook, thereby producing a first quantized estimate, quantizing an (n−1)-th quantized estimate with an n-th codebook, thereby producing an n-th quantized estimate, where n is an integer value ranging from 2 to R, R is a total number of quantizations of the estimate, wherein the n-th codebook is a localized codebook. The method also includes incrementing n, repeating the quantizing an (n−1)-th quantized estimate until n=R, and transmitting information based on the R quantized estimates to the base station.

The invention provides a multi-antenna wireless transceiving device which belongs to the technical field of communications and is suitable for a mobile communication terminal. The multi-antenna wireless transceiving device comprises a baseband chip, a radio frequency transceiver, a power amplification module, a matching network, an antenna selection switch and two or more antennae, wherein wireless transceiving performance indexes of the two or more antennae respectively correspond to different application modules of the mobile communication terminal; and the antenna selection switch is used for selecting one antenna from the two or antennae and controlling the selected antenna to be communicated with the matching network. By adopting the technical schemes, the invention enables that wireless performances of the mobile communication terminal are all optimized under various application environments, improves the customer satisfaction degree and is good for optimizing the mobile networkand improving the network capacity.

A subscriber station for use in a wireless network capable of communicating according to a multicarrier protocol. The subscriber station determines a total average signal level across N subbands, where each of subband comprises a plurality of subcarriers. The subscriber station also determines a first average signal level within a first subband. The subscriber station then transmits a channel quality indicator (CQI) feedback message to the wireless network. The CQI feedback message comprises a first data field indicating the total average signal level and a second data field indicating the first average signal level. The first data field may indicate the total average signal level as an absolute value and the second data field may indicate the first average signal level relative to the total average signal level.

The present invention relates to a wireless communication method for simultaneous data transmission and a wireless communication terminal using the same, and more particularly, a wireless communication method in which a plurality of terminals simultaneously transmit data for improving a data throughput in a high density environment, and a wireless communication terminal using the same. To this end, the present invention provides a wireless communication method for a terminal including transmitting a trigger frame indicating simultaneous uplink data transmission of multi-users, receiving uplink data transmitted by a plurality of terminals in response to the trigger frame, and transmitting a block acknowledgement for the plurality of terminals having transmitted the uplink data, and a wireless communication terminal using the same.

A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.

A system and method is proposed for progressively quantizing channel state information for application in a MIMO (multiple input multiple output) communication system. A method includes computing an estimate of a communications channel between a subscriber unit and a base station, quantizing the estimate with a first codebook, thereby producing a first quantized estimate, quantizing an (n−1)-th quantized estimate with an n-th codebook, thereby producing an n-th quantized estimate, where n is an integer value ranging from 2 to R, R is a total number of quantizations of the estimate, wherein the n-th codebook is a localized codebook. The method also includes incrementing n, repeating the quantizing an (n−1)-th quantized estimate until n=R, and transmitting information based on the R quantized estimates to the base station.

Disclosed is a device to device (D2D) communication method. The D2D communication method includes generating a connection identification (CID) for D2D communication using an identification (ID) of a specific terminal, selecting a sequence corresponding to the CID, and transmitting the selected sequence using a paging request resource including a plurality of subcarriers. Accordingly, even in a channel selective wireless environment, a performance of a wireless link may be improved, and usage efficiency of wireless resources may be improved.

The embodiment of the invention discloses terminal equipment and an improving method of wireless performance of the terminal equipment. The terminal equipment comprises N antennas, an antenna monitoring module, a processor and an antenna switch, wherein the N antennas are used for wireless communication; the antenna monitoring module is used for monitoring antenna efficiency state signals, and sending the monitored antenna efficiency state signals to the processor; the processor is connected with the antenna monitoring module and the antenna switch respectively, used for judging antenna states of the antennas and obtaining antenna efficiency indexes, corresponding to the antenna states, of the antennas according to the antenna efficiency state signals, and used for selecting the antenna with the highest antenna efficiency index from the N antennas as a working antenna and sending antenna identification of the working antenna to the antenna switch; and the antenna switch is used for starting the working antenna according to the antenna identification, so that the terminal equipment conducts the wireless communication through the working antenna. According to the terminal equipment and the improving method, the wireless performance of the terminal equipment can be optimized.

The present invention relates to an ARQ control apparatus and method. According to the present invention, a subscriber station performs initialization by communicating with a base station, and receives wireless link channel quality information; stores an SDU in an SDU buffer when the SDU is transmitted from an upper block, and establishes a connection with the base station for a corresponding service flow; receives QoS information on the service flow, ARQ information, and a CINR, and transmits them to the uplink scheduler; detects a TCP header of the SDU and stores TCP sequence number information; and performs a DSC for controlling an MAC ARQ window size with reference to the QoS information, ARQ information, CINR, and TCP congestion window size.

The transmitter of a wireless power transmission audio system includes: a transmission signal generating section for generating a transmission signal comprised of an RF signal; a first resonant circuit which receives and sends out the transmission signal; a detecting section for sensing a variation in the transmission signal; and a transmission signal adjusting section. The loudspeaker of the system includes: a second resonant circuit for receiving the transmission signal by producing a magnetic field resonant coupling phenomenon; and an audio output section for reproducing the audio signal. At least one of the transmitter and the loudspeaker includes an impedance adjusting section which changes an impedance value on the transmission line of the transmission signal. When the impedance adjusting section changes the impedance value, the transmission signal adjusting section changes the signal waveform of the transmission signal.

A sub-access point (AP), system, and method for adjusting a power level of a transmission signal, and more particularly, in which the power level of a transmission signal output from the sub-AP is adjusted based on received signal strength indicator (RSSI) readings and frame error rate (FER) of a main AP, thereby eliminating shadow areas and minimizing interference between the main AP and the sub-AP. The sub-AP includes a reception unit which receives a beacon frame and a data frame from a main AP, a RSSI checking unit which checks an RSSI of the main AP, a FER checking unit which checks an FER, and a control unit which determines a power level at which a transmission signal is to be transmitted based on the identified RSSI and the identified FER and causes a transmission signal to be output at the determined power level.

The invention is suitable for a mobile communication terminal and provides the mobile communication terminal and an adaptive radio frequency parameter configuration method thereof. The method comprises the following steps: a, detecting the current application mode of the mobile communication terminal; and b, calling radio frequency parameters corresponding to the current application mode and loading the radio frequency parameters to a radio frequency functional module of mobile communication. In the technical scheme provided by the invention, the mobile communication terminal can adaptively configure the radio frequency parameters according to different application environments, and the wireless performance of the mobile communication terminal is optimized, thereby providing better user experience.

A sub-access point (AP), system, and method for adjusting a power level of a transmission signal, and more particularly, in which the power level of a transmission signal output from the sub-AP is adjusted based on received signal strength indicator (RSSI) readings and frame error rate (FER) of a main AP, thereby eliminating shadow areas and minimizing interference between the main AP and the sub-AP. The sub-AP includes a reception unit which receives a beacon frame and a data frame from a main AP, a RSSI checking unit which checks an RSSI of the main AP, a FER checking unit which checks an FER, and a control unit which determines a power level at which a transmission signal is to be transmitted based on the identified RSSI and the identified FER and causes a transmission signal to be output at the determined power level.

A mobile communication device is provided with a first wireless module, a second wireless module, and a controller module. The first wireless module is configured to perform wireless transmissions and receptions to and from a telecommunication network using a cellular technology. The second wireless module is configured to perform wireless transmissions and receptions using a WiFi technology. The controller module is configured to perform operations for communication controls, and the operations include searching for APs via the second wireless module, reporting a result of the search to the telecommunication network via the first wireless module, and connecting to one of the searched APs via the second wireless module according to a first instruction received from the telecommunication network via the first wireless module for switching data traffic from the telecommunication network to the one of the searched APs.

An antenna device of a mobile terminal for enabling to receive a wireless signal of a new frequency band by appropriately connecting a plurality of antennas through a switch is provided. The antenna device includes a plurality of communication units for transmitting and receiving a wireless signal of a plurality of frequency bands through a plurality of antennas, a plurality of switches for turning on / off an electrical connection between the plurality of antennas and the plurality of communication units, and a controller for controlling the plurality of switches to turn off an electrical connection between the plurality of antennas and the plurality of communication units.

A method for managing wireless multi-hop network key is applicable to a security application protocol when a WAPI frame method (TePA, an access control method based on the ternary peer-to-peer identification) is applied in a concrete network containing a Wireless Local Area Network, a Wireless Metropolitan Area Network AN and a Wireless Personal Area Network. The key management method of the present invention includes the steps of key generation, key distribution, key storage, key modification and key revocation. The present invention solves the technical problems that the prior pre-share-key based key management method is not suitable for larger networks and the PKI-based key management method is not suitable for wireless multi-hop networks; the public-key system and the ternary structure are adopted, thereby the security and the performance of the wireless multi-hop networks are improved.

Disclosed in the present invention is a method and device for cell reselection for a terminal relating to the technical field of wireless communications, and the method comprises the following steps: when performing cell reselection according to the signal quality of the serving cell or the service performance, a terminal acquiring a first neighboring cell list from the system side; selecting neighboring cells satisfying a cell reselection condition from the first neighboring cell list; if none of the neighboring cells in the first neighboring cell list satisfies the cell reselection condition, the terminal performing active search, obtaining another neighboring cell satisfying the cell reselection condition, and camping on the such neighboring cell. The present invention enables a terminal to actively search an optimum cell existing around and camp on in the case of weak signals, and is beneficial to improve wireless performance and user experience.

A network entry method in a wireless mobile communication system is disclosed. An initial network entry method by a Mobile Station (MS) in a wireless mobile communication system includes sending a ranging request message including a Medium Access Control (MAC) address in a predetermined format to a Base Station (BS) and receiving a ranging response message including information associated with basic capability negotiation and information associated registration from the BS.

The invention provides a method for improving LTE PUCCH DTX detection performance. The method includes the steps that firstly NI flattening treatment among time slots and antennas is conducted on UE equilibrium demodulation data, then DTX detection and PUCCH demodulation treatment is conducted. After the scheme is used, under the scene with the large NI difference, the performance of simulation environment and implementation environment is greatly improved; under the scene with small NI difference, the performance of the simulation environment and the implementation environment is not lost, comprehensively, on the premise that the false-alarm probability reaches the standard, the miss-alarm probability of a PUCCH is greatly lowered, therefore, the wireless performance of the PUCCH is improved, and then the throughput performance of a whole LTE system is improved.

The invention provides an antenna working mode selection method, a mobile terminal and a computer readable storage medium and relates to the technical field of communication. The method comprises the following steps of detecting the first signal intensity of a wireless signal received by the mobile terminal; judging whether the first signal intensity meets a preset requirement; and when the first signal intensity does not meet the preset requirement, selecting a first target antenna module from two or more antenna modules and a first target antenna unit in the first target antenna module to utilize the first target antenna unit to receive the wireless signal. The wireless performance of the mobile terminal can be improved.

A wireless mesh network system includes a plurality of wireless devices adapted to forward a message packet. Each of the wireless devices includes a transmitting unit, a receiving unit, a communications controller, and a RAM. Further, the communications controller controls such that an original source address contained in a message packet forwarded by a wireless device, which is an address of the wireless device that has firstly transmitted the message packet, and a packet number that identifies the message packet are stored in the RAM, and controls such that a message packet received is forwarded if information contained in the message packet received is not consistent with information of the original source address and the packet number stored in the RAM.

The present invention discloses a resource scheduling / authorization method, which includes: RN obtains uplink channel information between UE and RN according to received SRS signal from UE, and reports uplink channel information to eNodeB; eNodeB according to the For uplink channel information, determine the downlink / uplink modulation and coding MCS mode and resource scheduling / granting information, and inform the UE of the resource scheduling / granting information. By adopting the method, the wireless performance of the system can be improved.

The invention discloses an antenna device of a handheld terminal, comprising a metal decorating piece and a metal decorating strip and also comprising a PCB (printed circuit board) and an antenna bracket, wherein the metal decorating piece is arranged at the top part of handheld terminal equipment; the metal decorating strip is arranged at the bottom part of the handheld terminal equipment; the PCB is attached at the bottom surface of the metal decorating piece; the antenna bracket is arranged in the handheld terminal equipment; an energy feed source is connected onto the PCB and is electrically connected with an antenna pattern arranged on the antenna bracket; the antenna pattern is electrically connected with the metal decorating piece which is electrically connected with a grounding surface of the PCB by a metal connecting piece; and the grounding surface of the PCB is electrically connected with a main grounding surface of the handheld terminal equipment by a metal connecting piece. In the antenna device, not only is the metal texture of the handheld terminal equipment such as a mobile phone and a computer and the like ensured, but also the wireless performance of the whole equipment is improved, and the multiband working requirement of the handheld terminal equipment is met.

A method for radio resources management within a set of cells (C1, . . . , CN) covered by base stations (BS1, . . . , BSN), comprising:—retrieving traffic demands information including relative Quality of Service (QoS) and radio performance figures on each cell (Ci) from correspondent base station (BSi);—processing the traffic demands information so as to detect at least one periodic traffic pattern;—adjusting allocated radio resources for each cell (Ci) according to the detected at least one periodic traffic pattern; and—reviewing the adjusted allocated radio resources according to base stations (BS1, . . . BSN) feedbacks.

A wireless mesh network system includes a plurality of wireless devices and is adapted to forward a message packet. Each of the wireless devices includes a transmitter, a receiver, a communications controller, and a RAM. Further, the communications controller detects a reception completion time of a message packet received, and controls such that, if the wireless device had performed forwarding the message packet received right before, a carrier sense time, which is the time from the reception completion time to the forwarding start, is set to be longer than a previously set carrier sense time, and if the corresponding wireless device had not performed forwarding the message packet received right before, the carrier sense time is set to be shorter than the previously set carrier sense time.