Patent application number | Description | Published |
20100142476 | Method for mapping downlink dedicated pilots to resource elements in extended cyclic prefix frame structure - A method for mapping downlink dedicated pilot frequencies of an extend cyclic prefix frame structure to physical resource blocks, applied in a long term evolution system, includes the following steps: the first downlink dedicated pilot frequency of each channel is mapped to the specific position of a physical resource block; other downlink dedicated pilot frequencies of the channel are mapping-processed according to the time domain interval, frequency domain interval and the preset regulation; the time domain interval is two or three OFDM symbols, the frequency domain interval is two sub-carriers of the same time domain. By defining the positions of pilot frequencies in the physical resource block, the public pilot frequency can obtain the information of all channels when a base station uses a beam pattern of more than four antennas. Making the channel information obtained by dedicated pilot frequencies contain the real channel information and the process-weight-value of a beam pattern, a UE does not need to obtain the transmission-weight-value of a beam pattern, such as to avoid the feedback cost of weight-values of a beam pattern. | 06-10-2010 |
20120063384 | Method and System for Transmitting Relay Link Control Channel - A method and system for transmitting a relay link control channel are disclosed for realizing the mapping and transmission of a control channel on a link from an eNode-B to a relay node. In the present invention, in a frequency division multiplex mode, control information is carried by one or more resource blocks in the frequency direction and the universal set of OFDM symbols available to a relay link in a subframe in the time direction; in a time division and frequency division multiplex mode, control information is carried by one or more resource blocks in the frequency direction and a subset of OFDM symbols available to a relay link in a subframe in the time direction; in a time division multiplex mode, control information is carried by all the resource blocks in the frequency direction and a subset of OFDM symbols available to a relay link in a subframe in the time direction; and the mapping of the control channel includes mapping in the time direction and/or the frequency direction. The present invention has backward compatibility and can obtain frequency diversity again. The time division multiplex mode can save power consumption, and the frequency division multiplex mode and the time division and frequency division multiplex mode have the advantages of flexible service scheduling. | 03-15-2012 |
20120076063 | Single Frequency Multicast Broadcasting Network Subframe, Method and Device for Sending User Data Channel - The present invention discloses a multicast broadcast single frequency network subframe. The multicast broadcast single frequency network subframe is used as a physical resource of a user transmission data channel; in the multicast broadcast single frequency network subframe, except symbols of a physical downlink control channel, other symbols adopt the same cyclic prefix as subframe 0 in a local cell. The present invention also discloses a user data channel transmission method and device, and a user physical resource determining device. By using the subframe, the transmission method and device, and the determining device, the performance of the LTE-A system can be improved. | 03-29-2012 |
20120140694 | METHOD AND DEVICE FOR DETERMINING CQI VALUE IN COORDINATED MULTI-POINT TRANSMISSION/RECEPTION - In the invention, a method for determining a channel quality indicator (CQI) value in coordinated multi-point transmission/reception (COMP) is provided, wherein the method comprises the following steps: a receiving side feeds back an independent CQI value or normalized useful signal power of each point of all or part of the points in a COMP measurement set or reporting set to a network side; the receiving side feeds back the correlation coefficient between the channel of each point and the channel of a master serving point to the network side; and the network side determines, according to the correlation coefficient and the independent CQI value of each point or normalized useful signal power, the CQI value used for coordinated multi-point transmission/reception. In the invention, a device is also provided for determining the CQI value in COMP. The feedback overhead is low in the present invention, and a more accurate final CQI value can be obtained through function operation. | 06-07-2012 |
20120140718 | Method and System for Sending Channel Measurement Pilot Frequency - A method and system for sending a channel measurement reference signal are provided, said method comprising: sending each port of the channel measurement reference signal in one subframe or two adjacent subframes during one sending period, and repeatedly sending each port of the channel measurement reference signal in full bandwidth with equal space in the unit of a predetermined composition unit. | 06-07-2012 |
20120195390 | Processing method and system of demodulate reference signal, base station, user equipment - The present disclosure discloses a processing method and system, configuring method, and demodulating method of demodulate reference signal, a base station and a UE. The base station configures common reference signals on control symbols and user-dedicated reference signals on service symbols; the UE demodulates control information by using the common reference signals and demodulates service data and broadcast data by using the user-dedicated reference signals, wherein the control symbols are OFDM symbols carrying the control information, and the service symbols are OFDM symbols without carrying the control information. With the application of the present disclosure, the purpose of reducing the overhead of reference signals can be achieved. | 08-02-2012 |
20120263097 | Mapping and resource allocation method for relay link-physical downlink shared channel - The present disclosure provides a mapping and resource allocation method for R-PDSCH, including: when resources allocated for an R-PDCCH overlap with resources allocated for the R-PDSCH, data of the R-PDSCH is not mapped or sent on over-lapped resources, or the data of the R-PDSCH to be sent on the over-lapped resources is punctured; the data of the R-PDSCH is mapped and sent on all or partial resources which are not occupied by the R-PDCCH; a receiving end receives data according to the mapping method for the R-PDSCH; wherein a resource allocation mode corresponding to a shared channel in an LTE system is reused or a grouping-tree resource allocation mode is used to allocate resources for the R-PDSCH. The present disclosure is well applicable to a link between an eNode-B and a relay node, and the resource allocation mode is flexible, the signalling overhead is lowered, therefore, not only the backward compatibility is ensured, but also the problem of mapping and resource allocation of the R-PDSCH is solved. | 10-18-2012 |
20120270591 | Transmission power configuration method and apparatus for demodulation reference signal - The present disclosure discloses a transmission power configuration method for a Demodulation Reference Signal (DMRS), and the method comprises: configuring the ratio between transmission power of a DMRS at each layer in a Resource Element (RE) and transmission power of data at a corresponding layer to be a constant value. Meanwhile, the present disclosure discloses a transmission power configuration apparatus for the DMRS. The present disclosure greatly improves the correct rate of data frame decoding, and improves decoding performance. The present disclosure enables the network side not need to notify a UE of the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer, which simplifies the overhead of the control signalling in the network side. As the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer is configured in the UE, the UE can implement channel estimation without waiting for the notification from the network side, which improves the channel estimation efficiency. | 10-25-2012 |
20130148615 | Method and System for Channel Reservation - The disclosure provides a method and a system for channel reservation. The method comprises: a sending station sending a channel reservation request message to a receiving station on a first number of fundamental channels, wherein the first number is an integer greater than or equal to 1, and each one of the fundamental channels is a minimum-bandwidth channel defined in a system in which the sending station and the receiving station locate; the receiving station sending a channel reservation acknowledgement message to the sending station on a second number of fundamental channels, wherein the second number is an integer greater than or equal to 1; and the sending station receiving the channel reservation acknowledgement message, and completing channel reservation with the receiving station. With the disclosure, interference caused by other sending stations can be avoided. | 06-13-2013 |
20130195018 | METHOD AND SYSTEM FOR CHANNEL SCANNING IN WIRELESS NETWORK - The disclosure discloses a method and a system for channel scanning in a wireless network. The method includes that an Access Point (AP) and/or Non-AP Stations (STAs) associated with the AP performs channel scanning according to one or more of the following ways: Way A: the AP performs Overlapping Basic Service Set (OBSS) channel scanning on channels within one or more different channelizing sets with a same period or with different periods; Way B: part or all of STAs associated with the AP perform OBSS channel scanning on channels within one or more different channelizing sets with a same period or with different periods; and Way C: the AP or part or all of STAs associated with the AP performs single OBSS channel scanning on one or more channelizing sets under event triggering. With the present disclosure, the channel scanning procedure of an equipment supporting multiple channelizing set schemes under circumstance of OBSS is planned. | 08-01-2013 |
20130294534 | Method and Device for Mapping Spatial Stream to Space Time Stream, and Method and Device for Transmitting Data - A method and device for mapping a spatial stream to a space-time stream, and a method and device for transmitting data are provided in the disclosure. The mapping method includes: determining, according to a space-time encoding indication bit in a network, whether to adopt space-time encoding (S | 11-07-2013 |
20140079010 | Method and system for feeding back channel measurement information - The disclosure provides a method and system for feeding back channel measurement information. The method includes: a receiving station receives a control frame for a channel measurement from a sending station, and sends channel measurement information to the sending station; the sending station correctly receives the channel measurement information or a part of the channel measurement information to obtain a valid response frame responding to the control frame for the channel measurement. Through the above solutions, if the sending station only correctly receives a part of the channel measurement information, the sending station does not consider this transmission is failed but consider that the valid response frame responding to the control frame for the channel measurement is obtained, so as to avoid unnecessary withdraw and retransmission, thereby saving bandwidth resources. | 03-20-2014 |
20140126405 | METHOD AND APPARATUS FOR TRANSMITTING WIRELESS FRAME, AND COMMUNICATION NETWORK ELEMENT - It is disclosed a method for transmitting wireless frame, including: the wireless frame is transmitted by using any access category. The wireless frame is a beginning frame for performing channel information measurement. It is further disclosed an apparatus for transmitting wireless frame, including: a selection unit and a transmitting unit, where the selection unit is configured to select any access category for a beginning frame for performing the channel information measurement; and the transmitting unit is configured to transmit the beginning frame. It is further disclosed a communication network element provided with the apparatus for transmitting wireless frame mentioned above. It is ensured that the wireless frames subsequent to the frame exchange sequence for performing the channel information measurement may be smoothly transmitted, and the channel information measurement may be smoothly performed, and thereby transmitting communication data based on the acquired channel information. The support of each communication network elements to the MIMO and beam forming is further ensured, and an effective supplement to the existing protocols is provided. | 05-08-2014 |
20140133451 | Identifier Allocation Method and System - The disclosure discloses an Identifier (ID) allocation method, including that: a non-AP Station (STA) sends a first radio frame to an Access Point (AP); and the AP sends a second radio frame to the STA, wherein the second radio frame carries group ID information or group ID information and second station ID information allocated to the STA. In a case that the STA sends a Reassociation Request frame to the AP, the AP may also send the STA a Reassociation Response frame carrying group ID information and/or station ID information reallocated to the STA. Correspondingly, the disclosure further discloses an ID allocation system. With the disclosure, a terminal is distinguished by the group ID information and the station ID information, such that it is possible to avoid Association ID (AID) shortage and support group management of terminals. | 05-15-2014 |
20140140264 | Data transmission method and system - A data transmission method and system are disclosed. The method comprises: a sending station sends a radio frame and notifies group transmission time interval information; a group station receives the radio frame and acquires group transmission time interval information of a group to which the group station belongs; and the group station competes for a sending opportunity within the group transmission time interval of the group to which the group station belongs. In accordance with the scheme provided in embodiments of the disclosure, a sending station allocates specific group transmission time intervals (subsections) to stations of different groups, and in the case of a large number of users stations, user stations in different groups compete for channels within different time intervals, thereby avoiding the simultaneous or approximately simultaneous competition among a large number of users, reducing the probability of collisions and improving the utilization efficiency of wireless resources. | 05-22-2014 |
20140146751 | Method and system for transmitting channel feedback information - The disclosure provides a method and system for transmitting channel feedback information. The method includes: a transmitting station transmits, after obtaining a Transmission Opportunity (TXOP), a radio frame to a receiving station to request the receiving station to transmit channel feedback information; and the receiving station transmitting, after receiving the radio frame transmitted by the transmitting station, a radio frame including channel feedback information to the transmitting station, wherein a transmission end time of the radio frame including channel feedback information is allowed to exceed an end time set by a transmission time threshold of the TXOP. The technical solution of the disclosure solves the technical problem that the transmitter is unable to timely obtain channel feedback information from the receiver, enabling the transmitter to timely obtain the channel feedback information from the receiver even in the condition that the transmitter cannot estimate a data volume and a rate of the channel feedback information fed back from the receiving station and whether the time for feeding back the channel feedback information by the receiver would exceed the transmission time threshold value or not. | 05-29-2014 |
20140376433 | Wireless channel access method and system - Disclosed are a method and system for accessing a wireless channel. An access point transmits a radio frame including access parameters of at least one group of stations (STAs); and when receiving the radio frame, an STA belonging to the at least one group of STAs transmits data to be transmitted competitively within an uplink transmission period in the access parameters according to the access parameters of the group of STAs. With the disclosure, system overhead can be reduced while low power consumption of a station is ensured. | 12-25-2014 |
20150043431 | METHOD AND DEVICE FOR SENDING TRAFFIC INDICATION INFORMATION - Provided are a method and a device for sending traffic indication information. In the method, an AP sends a radio frame to multiple STAs associated with the AP, wherein the radio frame carries an indication field, and the indication field is used to indicate whether the radio frame carries traffic indication virtual bitmap information. According to the technical solution provided, in the case where the AP has no unicast cache data for any station, multiple STAs associated with the AP can know whether the AP has their respective unicast cache data to be sent. | 02-12-2015 |
20150049701 | METHOD FOR INDICATING CHANNEL MEASUREMENT FEEDBACK AND SENDING STATION - Disclosed are a method for indicating channel measurement feedback and a sending station. The method comprises: a sending station sends a radio frame, wherein a signal field, which is in the physical layer header of the radio frame, carries indication information requesting channel measurement feedback. The disclosure effectively reduces the transmission load overhead for sending the radio frame when requesting channel measurement feedback, thereby reducing, the power consumption of a station. | 02-19-2015 |
20150103710 | RADIO FRAME SENDING METHOD AND APPARATUS - Provided are a radio frame sending method and apparatus. In the method, when entering an awake state from a doze state, a station selects a pre-defined access category or an access category which is pre-negotiated with a centre station to contend for a wireless channel. Afterwards, the station sends a radio frame to the centre station via the wireless channel obtained through the contention, and then notifies the centre station to send buffered data to the station. The method and apparatus can be applied to flexibly and dynamically regulate an access category used for contending for a wireless channel when a station sends a radio frame which is used for notifying a centre station to send buffered data to the station. | 04-16-2015 |
20150117343 | Radio Frame Receiving Method and Device - Disclosed are a method and device for receiving the radio frame. The method comprises: a first functional entity of a station detects that a channel signal intensity reaches a preset threshold, and the first functional entity starts receiving a radio frame and sends an indication that a channel detection result is busy to a second functional entity of the station; the first functional entity determines that the station is not a target station for receiving the radio frame, and sends an indication of ending up receiving the radio frame to the second functional entity; and when transmission of the radio frame ends, the first functional entity sends an indication that the channel detection result is idle to the second functional entity. The disclosure provides a reception operation processing procedure of a station having the function of discarding the radio frame while not updating a network allocation vector (NAV). | 04-30-2015 |
20150312940 | Method and system for wireless station to access channel - Provided are a method and system for a wireless STA to access a channel. The method includes that the wireless STA acquires a transmission ending moment of a wireless frame when selecting to refuse or drop the wireless frame and not updating a locally stored Network Allocation Vector (NAV); and the wireless STA accesses the channel when the transmission of the wireless frame is ended and a preset condition is met. According to the disclosure, a collision problem may happen to the wireless STA, and the wireless STA can access the channel only when the preset condition is determined to be met after the transmission of the wireless frame is ended, so that the problem of transmission collision with a hidden STA during the wireless frame transmission of the wireless STA is solved. | 10-29-2015 |
20150373580 | Methods and Devices for Transmitting Frame in Network - Provided are methods and devices for transmitting a frame in a network. The method includes: setting, by a sending station, a media access control (MAC) frame header of a MAC frame, wherein the MAC frame header includes at least one bit for indicating whether the MAC frame header adopts an optimized MAC header format, the optimized MAC frame header format referring to a MAC frame format in which only necessary frame header information is reserved (S | 12-24-2015 |
Patent application number | Description | Published |
20080291094 | Dual band WLAN antenna - An antenna system includes first, second, and third antennas that are arranged on a substrate and that include an arc-shaped element having a concave side and a convex side, a conducting element that extends substantially radially from a center of the concave side, and a U-shaped element having a base portion with a center that communicates with the conducting element and two side portions that extend from ends of the base portion towards the concave side. | 11-27-2008 |
20090002241 | Dual band WLAN antenna - An antenna system includes first and second antennas that are arranged on a substrate and that include an arc-shaped element having a concave side and a convex side, a conducting element that extends substantially radially from a center of said concave side, and a U-shaped element having a base portion with a center that communicates with said conducting element and two side portions that extend from ends of said base portion towards said concave side. Third and fourth antennas are arranged on said substrate and include an inner ring and an outer ring that is concentric to said inner ring. | 01-01-2009 |
20090009409 | Dual band wlan antenna - An antenna system includes first, second and third antennas that are arranged on a substrate. The first, second and third antennas include an arc-shaped element having a concave side and a convex side and a conducting element that extends substantially radially from a center of said concave side. | 01-08-2009 |
20130035295 | Use of Peptide Epoxyketones for Metastasis Suppression - The invention provides a method of repressing metastasis of a cancer compromising the administration of a peptide epoxyketone proteasome inhibitor. Furthermore, the method can be performed in combination with the administration of one or more additional therapeutics | 02-07-2013 |
20140364377 | USE OF PEPTIDE EPOXYKETONES FOR METASTASIS SUPPRESSION - The invention provides a method of repressing metastasis of a cancer compromising the administration of a peptide epoxyketone proteasome inhibitor. Furthermore, the method can be performed in combination with the administration of one or more additional therapeutics. | 12-11-2014 |
20150209281 | LIPOSOMAL COMPOSITIONS OF EPOXYKETONE-BASED PROTEASOME INHIBITORS - Liposomal compositions comprising peptide epoxyketone compounds are described, as well as methods of making and using such liposomal compositions. These liposomal compositions provide prolonged drug exposure (relative to non-liposomal compositions comprising peptide epoxyketone compounds) without significantly affecting biodistribution of the drug. Tolerability of peptide epoxyketone compounds was also enhanced when formulated in the liposomal compositions. | 07-30-2015 |
20150209282 | LIPOSOMAL COMPOSITIONS OF EPOXYKETONE-BASED PROTEASOME INHIBITORS - Liposomal compositions comprising peptide epoxyketone compounds are described, as well as methods of making and using such liposomal compositions. These liposomal compositions enhance the therapeutic window of peptide epoxyketone compounds by improving in vivo half-life relative to non-liposomal compositions comprising peptide epoxyketone compounds, providing desirable pharmacodynamic profiles, and providing anti-tumor activity in a human tumor xenograft model, greater than or equal to non-liposomal compositions comprising peptide epoxyketone compounds. Further, experiments performed in support of the present invention demonstrated improved tolerability of liposomal compositions comprising peptide epoxyketone compounds. | 07-30-2015 |
Patent application number | Description | Published |
20130007419 | COMPUTER IMPLEMENTED METHOD OF ELECTING K EXTREME ENTRIES FROM A LIST USING SEPARATE SECTION COMPARISONS - A computer implemented method selects K extreme elements of a list of N elements by partitioning each of the N elements into a plurality of sections. For each section from a most significant section to a least significant section the method selects a threshold selection determining at least K extreme entries from the list. This iteratively compares a corresponding section to a section threshold, counts a number of sections which are more extreme than the section threshold, increasing (or decreasing) the section threshold if the count is greater than K and decreasing the section threshold if the count is less than K. After finding the section threshold for the corresponding section the method forms a combined threshold by concatenation of said section thresholds in order from a most significant section to a least significant section, compares each of the N elements to the combined threshold, and selects at least K elements from the set of N elements more extreme than the combined threshold. | 01-03-2013 |
20130182569 | Link Adaptation for LTE Uplink - A detailed design of an LTE Link Adaptation function for LTE uplink is disclosed. A new approach for adapting SINR backoff in OLLA is used when serving non-time-sensitive radio bearers without target BLER constraint. A sub-optimal scheduler is also disclosed wherein the SINR measurements at the ILLA input are updated on each TTI for the UEs scheduled in that sub-frame for future UL transmission with a fresher interference measurement from the sub-frame preceding by 8 ms the actual transmission sub-frame. This allows for exploitation of a correlation peak of the interference resulting from HARQ retransmissions. A schedule incorporating these features improves upon, with a minor complexity increase, the spectral efficiency performance of a low-complexity baseline scheduler only based on SINR updates at SRS rate. | 07-18-2013 |
20140126525 | Mapping Between Logical and Physical Uplink Control Resource Blocks in Wireless Networks - A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations on an uplink channel in a wireless network. A scheme for mapping between logical uplink control channel (PUCCH) resource blocks (RBs) and physical RBs (PRBs) used by PUCCH is described. A logical uplink control resource block index n | 05-08-2014 |
20140341010 | SIGNALING OF RANDOM ACCESS PREAMBLE SEQUENCES IN WIRELESS NETWORKS - Transmission of random access preamble structures within a cellular wireless network is based on the use of cyclic shifted constant amplitude zero autocorrelation (“CAZAC”) sequences to generate the random access preamble signal. A pre-defined set of sequences is arranged in a specific order. Within the predefined set of sequences is an ordered group of sequences that is a proper subset of the pre-defined set of sequences. Within a given cell, up to 64 sequences may need to be signaled. In order to minimize the associated overhead due to signaling multiple sequences, only one logical index is transmitted by a base station serving the cell and a user equipment within the cell derives the subsequent indexes according to the pre-defined ordering. Each sequence has a unique logical index. The ordering of sequences is identified by the logical indexes of the sequences, with each logical index uniquely mapped to a generating index. When a UE needs to transmit, it produces a second sequence using the received indication of the logical index of the first sequence and an auxiliary parameter and then produces a transmission signal by modulating the second sequence. | 11-20-2014 |
20150023329 | WIRELESS NETWORK SIGNAL TO INTERFERENCE PLUS NOISE RATIO ESTIMATION FOR A RANDOM ACCESS CHANNEL - A wireless device includes a preamble detector configured to identify a plurality of preambles transmitted via a random access channel of a wireless network. The preamble detector includes a noise floor estimator. The noise floor estimator is configured to: estimate, for a given preamble root sequence identified by the preamble detector, a noise floor value as mean energy of received signal samples, excluding detected preamble samples on the give preamble root sequence, below a noise floor threshold assigned to the given preamble root sequence. The noise floor estimator is configured to compute the noise floor threshold as a product of: average energy of the received signal samples less total signal energy contained in each cyclic prefix window in which a preamble is detected using the given preamble root sequence; and a predetermined normalized relative noise floor threshold based on a target false preamble detection rate. | 01-22-2015 |
20150215968 | RANDOM ACCESS CHANNEL FALSE ALARM CONTROL - A wireless device includes a preamble detector configured to identify preambles transmitted via a random access channel of a wireless network. The preamble detector includes preamble false alarm logic. The preamble false alarm logic is configured to set a preamble false alarm detection window, and compare, to one another, preambles identified in the false alarm detection window. The preamble false alarm logic is configured to identify, based on the comparison, a largest of the preambles in the false alarm detection window, and reject all but the identified largest of the preambles as false alarm detections. | 07-30-2015 |