64results about How to "Improve downlink throughput" patented technology

A system and machine-implemented method are described for performing precoding interpolation in a DIDO system which employs orthogonal frequency-division multiplexing (OFDM) and DIDO precoding to communicate with a plurality of distributed-input-distributed-output (DIDO) clients. For example, a system according to one embodiment of the invention comprises: selecting a first subset of ODFM tones to determine a first subset of precoding weights; deriving a second subset of precoding weights for a second subset of ODFM tones by interpolating between the first subset of precoding weights; and using a combination of the first subset of precoding weights and the second subset of precoding weights to precode a data stream prior to transmitting the data stream to a DIDO client.

The invention provides a downlink self-adaptive method; wherein, a resource block group (RBG) corresponding to a sub-band channel quality indicator (CQI) of good quality is used for sending data scheduled to UE. When the RBG corresponding to the sub-band CQI does not meet the requirement of data amount, the RBGs corresponding to the sub-band CQI and a part of broad band CQI are jointly used for sending the data scheduled to the UE; however, when both the RBG corresponding to the sub-bond CQI and the RBG corresponding to the broad band CQI do not meet the requirement of the data amount, the sub-band CQI and all RBGs corresponding to the broad band CQI are used for sending a part of the data scheduled to the UE. Furthermore, when the TBz can be sent by the RBG corresponding to the sub-bond CQI is less than the TBz can be sent by the RBG corresponding to the broad band CQI, the RBG corresponding to the sub-bond CQI is used for sending the data scheduled to the UE. Under the feedback of UE selective sub-band CQI, the method of the invention not only adopts a single code modulation mode for each data stream, but also obtains comparatively high downlink throughput rate.

A method for supporting coexistence in a mobile station is provided. The method for supporting coexistence in the mobile station includes, at the mobile station, turning on Bluetooth at a start point of a WiMAX downlink subframe, stopping the operation of the Bluetooth if WiMAX channel quality of the mobile station becomes less than a threshold value during the operation of the Bluetooth, and, at the mobile station, turning off the operation of the Bluetooth at the start point of a WiMAX uplink subframe. Accordingly, it is possible to solve fragmentation by minimizing the interruption of the WiMAX transmission/reception and to improve WiMAX downlink throughput by restricting Bluetooth data transmission/reception according to the WiMAX channel quality.

The invention relates to a method for generating ACK/NACK information, which comprises the following steps that: the number of downlink resources for sending data to user equipment by a base station is N', N' pieces of ACK/NACK information exist aiming at the N' downlink resources, the number of ACK/NACK bits sent in an uplink subframe is M, and when N' is more than or equal to M, the N' downlinkresources after sending the data are divided into M groups, and each group of the downlink resources outputs one piece of ACK/NACK or DTX information in a binding mode; and the user equipment sends the ACK/NACK or DTX information in the uplink subframe. The method fully uses the capability of sending multi-bit ACK/NACK in the uplink direction, and can improve the downlink throughput.

An embodiment of the invention discloses a data transmission method, an apparatus and a system thereof and relates to the communication field. In order to make a flexible subframe achieve flexible configuration and increase a downlink throughput, a technical scheme provided in the invention has the following steps: configuring a hybrid automatic repeat request (HARQ) synchronization attribute of a data packet, wherein the HARQ synchronization attribute comprises a synchronous HARQ or an asynchronous HARQ; when the HARQ synchronization attribute of the data packet is configured to be the asynchronous HARQ, configuring a HARQ process number of the data packet; sending downlink control information which is used to schedule the data packet to user equipment.

A first problem is to reduce an enormous uplink throughput of a base station that feedback information needs so as to improve an uplink throughput of useful user data. A second problem is to carry out a frequency segment assignment to guarantee a number of communication times and a communication quality to every terminal apparatus so as to increase a downlink throughput. The second problem is solved together. As means to give the number of communication times per each terminal apparatus, means to estimate an expected value of the number of communication times per each terminal apparatus, and means to assign the terminal apparatus per each frequency segment are arranged in the base station apparatus. To increase the communication quality, necessary means in each terminal apparatus are: means to measure statistics values of a communication capacity with regard to all the frequency segments; means to feed back the statistics values to the base station apparatus; means to calculate the occurrence probability of a high communication capacity based on the communication capacity statistics values per each frequency segment of all the terminal apparatuses; and means to assign the terminal apparatus per each frequency segment. To fuse the means to give the number of communication times and the means to give the communication quality, the means to assign the terminal apparatus per each frequency segment that the base station apparatus has assigns a frequency segment that has a little number of competitors sharing a same segment, and has high average and dispersion of the communication capacity to each terminal apparatus.

The invention discloses a message transmission method. The method comprises the following steps that a sending terminal retransmits a first message after determining that the first message is lost andreduces a congestion window and/or a slow start threshold; a receiving terminal sends an ACK aiming at the retransmitted first message to the sending terminal after firstly receiving the retransmitted first message, the ACK contains an active constructed DSACK option, the DSACK option is sent to the sending terminal so as to prompt the sending terminal that the first message is repeatedly received; and the sending terminal deduces that the first message is disordered and packet loss because of congestion is not generated according to a serial number recorded in the DSACK option, and because retransmission triggered by first message packet loss and congestion window retreat are unnecessary, the congestion window and/or the slow start threshold are compensated.

The invention discloses a method for confirming a shaped beam GOB vector of an auxiliary carrier wave. The method for confirming the shaped beam GOB vector of the auxiliary carrier wave is used in a CA system. The method for confirming the shaped beam GOB vector of the auxiliary carrier wave includes: judging whether a first intersection angle is equal to a second intersection angle, wherein the first intersection angle is an intersection angle between a user terminal and the antenna normal direction of a main carrier wave, and the second intersection angle is an intersection angle between the user terminal and the antenna normal direction of the auxiliary carrier wave; if the first intersection angle is not equal to the second intersection angle, judging whether an angle difference between the first intersection angle and the second intersection angle always is a fixed value; if the angle difference between the first intersection angle and the second intersection angle always is the fixed value, confirming the GOB vector according to the fixed value and an AOA value of the user terminal in the wave incoming direction of the user terminal; if the angle difference between the first intersection angle and the second intersection angle is not the fixed value always, confirming the GOB vector according to a direction of arrival DOA of the user terminal on the auxiliary carrier wave. The method for confirming the shaped beam GOB vector of the auxiliary carrier wave can achieve the purpose of confirming technical effects of the GOB vector of the auxiliary carrier wave when the CA system where the main carrier wave and the auxiliary carrier wave are located is not in a frequency segment.

The invention provides a wireless channel competition method and system. The wireless channel competition method and system are applied to a wireless network which comprises wireless access point devices (APs) and at least two wireless client side devices (CPE). The method includes the steps that the size of a local minimum competition window is calculated and configured according to the ratio of the average speed of a cache region to the preset reference speed and the size of a local standard competition widow, the number of items is set as zero, and meanwhile the content of the cache region is cleared; when the sending speed of data between the CPE and the APs changes, the CPE can adjust the size of the minimum competition window according to the current average sending speed, zooms out the minimum competition window when the average sending speed increases, or else zooms up the minimum competition window. Consequently, the channel competition chance of the CPE is increased or decreased, the whole throught of the APs is increased, and user experience is improved.

The invention discloses a cellular downlink throughput optimization method based on an out of band D2D multi-hop relay. The method comprises the following steps: a base station determines the mode of each UE obtaining a cellular channel to receive data from the base station in three phases: preselecting a first relay, preselecting a second relay and verifying the link throughput of the preselected relays, wherein the mode comprises directly receiving data from the base station, receiving the data by selecting a relay to transfer the data and receiving the data by selecting two relays to transfer the data; in the phase of preselecting the first relay, the first relay is selected by comprehensively considering the improvement of the throughput and the residual energy level of the relay; in the phase of preselecting the second relay, the second relay is selected by setting an energy constraint threshold to ensure that the residual energy level of the second relay is not less than a corresponding value of the first relay; and in the phase of verifying the link throughput of the preselected relays, whether the preselected relay is abandoned or retained is determined according to whether the throughput is improved. By adoption of the cellular downlink throughput optimization method disclosed by the invention, the data receiving quality can be effectively improved, the throughput is effectively improved, the service life of the network is prolonged, and the computation and communication costs are reduced.

The present invention discloses a terminal capability reporting method and device. The method comprises the following steps of: receiving a first signaling message which is transmitted by a terminal and contains a specified field used for identifying terminal types; determining the terminal type to which the terminal belongs according to a protocol version supported by a communication network and the specified field in the first signaling message; and determining the terminal capability of the terminal in set corresponding relationships of terminal types and terminal capabilities according to the determined terminal type. With the terminal capability reporting method and device adopted, the terminal can support a capability for receiving 256QAM signals, and terminals having capabilities for receiving 256QAM signals can work normally when entering communication networks of lower versions.

A Base Station (BS) antenna in a mobile communication system is provided, in which a reflective plate has a frontal surface onto which radiation elements are attached, and at least one protector is attached onto the reflective plate, surrounding at least part of the reflective plate.

The invention provides a dynamic scheduling method of code resources, comprising the steps: (1) an RNC (radio network controller) distributes public channel code resources to cells of a NodeB in advance; (2) the NodeB acquires the occupying condition of the downlink code channels of the current cells and carries out sorting on usable spreading factor (SF)16 code channels; and (3) the NodeB carries out code channel updating according to the usable SF 16 code channels and marks the code channels for user scheduling of high-speed downlink packet access (HSDPA). The invention also provides a dynamic scheduling system and base station of the code resources. In the method, the base station and the system, the problems and the defects that in the prior art, the adjustment period of the RNC to the number of HS-PDSCH (high-speed physical downlink shared channel) code channels of the cells of the NodeB is longer and the downlink code channel resources are wasted can be overcome, downlink code channel resources are fully and reasonably utilized, the utilization ratio of the downlink code channel resources and the downlink throughput of HSDPA cells are improved, and the overall performance of a network is improved.

The invention discloses a reuse method of associated dedicated physical channels. The reuse method comprises the following steps: a reuse mode the associated dedicated physical channels is selected; states of various associated dedicated physical channels are determined according to the number of reuse users of various associated dedicated physical channels; and the associated dedicated physical channel at the reuse mode or idle mode is selected and distributed to at least one user for use. The reuse method can effectively improve the utilization rate of code resources and improve the capacity and the downlink throughput of a system.

The invention discloses a method for determining a downlink frequency selection scheduling resource and a device, which aim at selecting a physical resource block corresponding to a subband with maximal subband channel quality indicator (CQI) value or with highest multi-channel server (MCS) grade value of the subband CQI information when the downlink frequency selection scheduling resource is determined, so a good channel condition can be guaranteed, and the downlink throughput can be improved. The method comprises the steps that: the present subband channel quality indicator (CQI) information reported by a user terminal is received by a basic station, a burst packet (BP) corresponding to the subband is determined according to the present subband CQI information, and the CQI value of the BP corresponding to the subband is updated; other subbands being attributive to the same broadband frequency band with the subband are determined, and the subband CQI value corresponding to other subbands is reduced; and a subband with the highest CQI value is determined from the subbands of the BP, and a resource block group (RBG) corresponding to the determined subband is determined as the downlink frequency selection scheduling resource corresponding to the BP.

The present disclosure provides a method for reporting channel state information (CSI). a first set of channel state information-reference signals (CSI-RSs) sent from a base station is measured to obtain a first set of CSI, and the first set of CSI obtained is reported to the base station. A second set of CSI-RSs sent from the base station is measured based on the first set of CSI to obtain a second set of CSI, and the second set of CSI obtained is reported to the base station, in which the second set of CSI-RSs is precoded CSI-RSs determined based on the first set of CSI.

The invention provides a resource optimization method and device which comprises the steps of: obtaining a modulation coding system (MCS) and a multi-input and multi-output (MIMO) type of a region where a user is in, comparing thresholds corresponding to the MCS and the MIMO type of the region where the user is in, and determining a target region of the user according to a comparing result, wherein the region is an inner ring or outer ring. The invention also provides a resource optimizing device. According to the invention, resource utilization rate can be increased, and downlink throughput capacity of a base station is increased.