41results about How to "Increase frequency diversity gain" patented technology

A method and apparatus for efficiently allocating subcarriers for data and/or a control signal requiring frequency diversity within the same symbol and for data or a control signal which needs to be transmitted in a frequency band with successive subcarriers, so as to transmit the signals simultaneously, satisfying the different requirements of frequency diversity and successive subcarrier allocation. Therefore, signal interference is reduced for a data signal having a frequency diversity gain and requiring a high data rate or a signal interfered by other signals.

The invention discloses a method of mapping a downlink control signaling direction channel on physical resources. The method includes that the data of downlink control signaling direction channel y(0), ellipsis y(15) are sequentially divided into groups with every four continuous subcarriers as a group after pilot is removed, and then are mapped on physical resources in the way as following: y(0), ellipsis y(3) are mapped on the resource units with the initial position as k1=k0; y(4), ellipsis y(7) are mapped on the resource units with the initial position as k2=k0+N

RB/2; y(8), ellipsis y(11) are mapped on the resource units with the initial position as k3=k0+2N

RB/2=k0+N

RB; y(12), ellipsis y(15) are mapped on the resource units with the initial position as k4=k0+3N

RB/2; wherein, k0=N<CELL>IDmod (N

RB/2); NRB

stands for the number of the resource blocks in system bandwidth; NID<CELL> is a special ID for each cell. By using the present mapping method, the downlink control signaling direction channel can obtain the maximal frequency diversity gain.

The invention discloses a channel resource mapping controlling method, including: dividing available bandwidth of controlling channels within N available orthogonal frequency division multiplexing (OFDM) symbols into M controlling sub-bands; mapping control resource block (CRB) with determined capacity of C resource elements (RE) onto C RE in M controlling sub-bands; allocating a integral number of CRB for control signaling bearing control channel, mapping mentioned control channel onto mapping resource of allocated CRB, wherein M, N, C are integers bigger than 0. Moreover, the invention also discloses a system and device for controlling mapping of channel resources, which could reduce complexity of coding.

The invention provides a frequency spectrum resource allocation method and a frequency spectrum resource allocation device. The frequency spectrum resource allocation method comprises the steps of: determining a resource allocation pattern of nodes according to a preset parameter, wherein the preset parameter comprises at least one of the following: a frequency domain starting position or a frequency domain offset, a frequency domain ending position, lengths of continuously allocated resources or sizes of continuously allocated clusters, a number of clusters or a number of resource sets, a period T, a number of nodes multiplexed in a frequency domain resource, or a number of resources that can be allocated in a system; and acquiring a corresponding resource allocation indicator r by coding, in a preset coding manner, the resource allocation pattern determined according to at least one of the preset parameters, wherein the resource allocation indicator r is used for indicating information about a position of a resource allocated to UE. The frequency spectrum resource allocation method and the frequency spectrum resource allocation device solve the problems of poor flexibility of resource allocation, high overhead and low frequency diversity gain due to the limitation that only two clusters can be allocated to each user at most, and can allocate multiple clusters to each UE, thereby improving flexibility of resource allocation, decreasing overhead, and increasing frequency diversity gain.

The invention discloses a data transmission method and a data transmission device. The method includes determining a frequency domain position of a physical resource block used for sending data by means of frequency hopping, wherein the frequency domain position is determined at least according to the number of sub-bands and the number of transmission times of the data; transmitting the data on time frequency resources corresponding to the determined frequency domain position of the physical resource block. By the data transmission method and the data transmission device, frequency gain of data transmission is increased.

A method of wirelessly transmitting control information includes generating control information comprising a plurality of control bits and encoding the control bits using a block code that outputs an encoded bit sequence comprising encoded bits b(0), b(1), . . . ,b(19). The control bits are encoded using the block code by generating a linear combination of a plurality of basis sequences. The method also includes dividing the encoded bits into a first group and a second group. The first group includes the encoded bits {b(0), b(1), b(5), b(6), b(8), b(11), b(12), b(14), b(17), b(19)} and the second group includes the encoded bits {b(2), b(3), b(4), b(7), b(9), b(10), b(13), b(15), b(16), b(18)}. Additionally, the method includes transmitting the first group of encoded bits on a first set of carriers and transmitting the second group of encoded bits on a second set of carriers. The second set of carriers have different frequencies from the first set of carriers.

The invention discloses a data transmission method and a data transmission device. The method includes determining a frequency domain position of a physical resource block in a time slot used for sending data by means of frequency hopping, wherein a random sequence of the frequency hopping mode is initialized through a cell identity and a frame number; transmitting the data on time frequency resources corresponding to the determined frequency domain position of the physical resource block. By the data transmission method and the data transmission device, covering range of data transmission is expanded.

The invention discloses an emitting method of a frequency hopping signalling, comprising: the step S202, a station preallocates the frequency hopping parameter for the users, and the users performs the frequency hopping emission according to the frequency hopping parameter; the step S204, when the user requests to dispatch, the user uses the preallocated frequency hopping parameter, or uses the station to perform the frequency hopping emission for the allocated new frequency hopping parameter. In addition, the invention also discloses a frequency hopping mode and a dispatching signalling collocation method. According to the invention, the user in the district keeps in quadrature, to randomize the disturb suffered by the user, wherein the single granularity and the multi-granularity of the bandwidth always occupy the continuity of the sub-carrier, reduces the demand of the signalling.

The embodiment of the invention provides a method for transmitting a physical uplink control channel PUCCH. The method comprises the following steps: determining a physical resource block occupied bymultiple times of repeated transmission of the PUCCH according to a resource mapping manner during the multiple times of repeated transmission of the PUCCH; and performing multiple times of repeated transmission of the short PUCCH according to the physical resource block. In this way, the frequency diversity gain can be improved during the multiple times of repeated transmission of the short PUCCH, and interference randomization is performed, and further, a redundancy version used by the repeated transmission of the short PUCCH in the multiple times of repeated transmission of the short PUCCHis determined according to a preset redundancy version sequence, thereby obtaining an incremental redundancy gain.

The invention discloses an uplink control information transmission method. The method comprises the steps that the transmission waveform of a physical uplink shared channel (PUSCH) is determined; anduplink control information (UCI) and data are transmitted according to the determined transmission waveform of the PUSCH. Compared with the prior art, the method has the advantages that the UCI and the data which are transmitted on a PUCCH and the PUSCH are laid according to the transmission waveform of the PUSCH, therefore, signal distortion and spectrum spreading interference which are caused bythe peak-to-average power ratios of different waveforms are significantly reduced, and the overall transmission performance of the UCI and a system is greatly improved. The invention further discloses user equipment for uplink control information transmission.

The invention discloses a random access channel selection method. The method comprises the steps of obtaining information of a random access channel set, wherein the random access channel set comprises at least two random access channels with different frequency domain positions; randomly or pseudo randomly selecting a random access channel from the random access channels with the different frequency domain positions; and sending a preamble on the selected random access channel, thereby initiating a random access process. Compared with the prior art, the method has the advantages that the random access channel is selected in a random or pseudo random mode, a random access frequency hopping range is expanded to a whole system bandwidth, the relatively high frequency diversity gain is obtained, and the random access integrated performance is clearly improved. The invention also discloses the user equipment for random access channel selection.

The invention discloses an HARQ retransmission method and device and an HARQ retransmission receiving method and device. The HARQ retransmission method and device and the HARQ retransmission receiving method and device are designed for solving the problem that a retransmission success rate and few negative effects can not be ensured at the same time in the current HARQ retransmission technology. The method includes the following steps that firstly, a number N of a retransmission carrier wave of 2m carrier waves besides a new carrier wave is inquired when the new carrier wave is used as a base point, an m bit is newly added in a control signal to represent the number N and the m is a positive integer and secondly, a control signal is transmitted and the carrier wave with the number N is used for retransmission. The HARQ retransmission receiving method includes the step of B1 of requesting a transmission carrier wave corresponding to the number N in the 2m carrier waves besides the new carrier wave is requested, when the new carrier wave is used as a base point and the step of B2 of receiving retransmission from the carrier wave corresponding to the number N. The HARQ retransmission method and device and the HARQ retransmission receiving method and device have the advantages of being high in retransmission success rate, moderate in the length of the control signal and the like.

The invention provides a wireless communication system and a method for sending symbols to a user terminal by base stations of a plurality of cells according to a cooperation multipoint transmission way. The method comprises the steps of: loading the symbols on an orthogonal frequency division multiplexing subcarrier according to a coding way of a space-frequency block code in the base station of each cell, wherein continuous symbols are loaded on the subcarrier with weak relativity and symbol pairs encoded according to the space-frequency block code are loaded on two subcarriers with strong relativity; carrying out cycle delay operation on the symbols loaded on the orthogonal frequency division multiplexing subcarrier among the corresponding transmitting antennas of the base station of each cell; and sending the symbols subjected to the cycle delay operation to the user terminal according to the cooperation multipoint transmission way. The method is not affected by the amount of the cells, is in step with the technology in the LTE (Long Term Evolution) standard Re 1-8 versions and can provide enhanced frequency diversity gains of the base stations of a plurality of cells.

The invention discloses a method and system for dispatching a physical uplink shared channel (PUSCH). The method includes configuring N activated uplink component carriers for user equipment (UE), and dispatching a PUSCH of the UE in a mode of uplink carrier aggregation and subframe bundling, wherein N is an integer larger than 0. The method and the system can simultaneously employ uplink carrier aggregation and subframe bundling to carry out PUSCH transmission, and keep or even improve system performance.

The embodiment of the invention provides an information transmission method, comprising the following steps: determining whether terminal equipment sends uplink control channel PUCCH information to network equipment in a frequency hopping way by the network equipment; when the network equipment determines a fact that the terminal equipment sends the PUCCH information to the network equipment in the frequency hopping way, receiving the PUCCH information sent by the terminal equipment in the frequency hopping way by the network equipment; and when the network equipment determines a fact that theterminal equipment sends the PUCCH information to the network equipment in a no-frequency-hopping way, receiving the PUCCH information sent by the terminal equipment in the no-frequency-hopping way by the network equipment, thus resource overhead can be reduced, and system performance can be beneficially improved.

Embodiments of the present invention provide a data transmission method, device, and system. The data transmission method of the present invention includes: the first device determines the frequency hopping parameter and the retransmission times of the data to be transmitted, and the frequency hopping parameter includes the frequency hopping initial position, the bandwidth of the data to be transmitted, the frequency hopping offset and The total bandwidth of frequency hopping; the first device determines the first starting position of the data to be transmitted according to the number of retransmissions of the data to be transmitted and the frequency hopping parameters; the first device determines the first starting position of the data to be transmitted according to the first starting position Send the data to be transmitted to the second device with the bandwidth of the data to be transmitted. The embodiment of the present invention ensures that the retransmitted data packet can traverse as many frequency domain intervals as possible, so as to obtain greater frequency diversity gain.

The invention provides a data sending method, a data receiving method, terminal equipment and network equipment. The method comprises the steps that the terminal equipment determines a target resourcebased on a time index and/or configuration information; and the terminal equipment sends data to the network equipment on the target resource. According to the embodiment of the invention, the terminal equipment directly determines the target resource according to the time index; therefore, the terminal equipment can control the resource granularity of the target resource to meet the transmissionrequirement of the terminal equipment, so that the situation that the actual transmission process of the data only occurs on the same frequency domain resource can be avoided, and the frequency diversity gain in non-time-slot transmission can be further improved. Furthermore, when the terminal equipment determines the target resource based on the configuration information, the randomness of interference can be improved as much as possible, the same user is prevented from always or frequently conflicting, and thus, when the DMRS of the terminal equipment conflicts with other terminals, the performance of user identification can be effectively improved.