WO2015127885A1 - 一种数据传输、数据接收检测方法及基站、用户设备 - Google Patents

一种数据传输、数据接收检测方法及基站、用户设备 Download PDF

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Publication number
WO2015127885A1
WO2015127885A1 PCT/CN2015/073201 CN2015073201W WO2015127885A1 WO 2015127885 A1 WO2015127885 A1 WO 2015127885A1 CN 2015073201 W CN2015073201 W CN 2015073201W WO 2015127885 A1 WO2015127885 A1 WO 2015127885A1
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data
mapped
physical resources
layer
same
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PCT/CN2015/073201
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English (en)
French (fr)
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戴晓明
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电信科学技术研究院
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Priority to EP15755110.2A priority Critical patent/EP3113562B1/en
Priority to US15/121,367 priority patent/US10028287B2/en
Priority to KR1020197002909A priority patent/KR102038078B1/ko
Priority to KR1020167026510A priority patent/KR20160127082A/ko
Priority to JP2016554332A priority patent/JP2017512425A/ja
Publication of WO2015127885A1 publication Critical patent/WO2015127885A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0071—Allocation based on fairness other than the proportional kind
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code

Definitions

  • the present invention relates to communication technologies, and in particular, to a data transmission, data reception detection method, and a base station and a user equipment.
  • 4G The 4 th Generation Mobile Communication Technology, fourth generation mobile communication technology
  • the linear receiver is used because the linear receiver guarantees the performance while the engineering implementation is simple.
  • the orthogonal transmission is based on the orthogonal transmission, which makes the receiver implementation relatively simple.
  • Figure 1 is a schematic diagram based on orthogonal design. Different data are transmitted on orthogonal physical resources, and one data is transmitted on each physical resource, and each data is orthogonal and has no interference.
  • orthogonal systems cannot achieve system capacity for multi-user transmission.
  • the drawback of using the orthogonal method for data transmission is that the system capacity is low, that is, the system has a low data transmission capability.
  • NTT DoCoMo proposes a non-orthogonal multiple access method based on the principle of energy allocation. See WO2012161080, which has performance gains in orthogonal systems, but its system capacity is still limited due to the limitation of energy allocation. Not enough, the system's data transmission capacity is low.
  • Embodiments of the present invention provide a data transmission and data reception detection method based on a non-orthogonal manner, a base station, and a user equipment, so as to improve data transmission capability of the communication system.
  • the number of resources and physical resources to which each data is mapped is not exactly the same;
  • the data mapped on each physical resource is not greater than the number of the physical resources.
  • the data mapped to the same physical resource is superimposed and then transmitted.
  • the superposition is a linear superposition.
  • the plurality of data is divided into multiple layers, and the number of physical resources to which each data in the previous layer is mapped is greater than the number of physical resources to which each data in the subsequent layer is mapped.
  • the different data divided into the same layer is mapped to the same number of physical resources.
  • the plurality of data belongs to at least two users.
  • the embodiment of the invention further provides a data receiving and detecting method, comprising:
  • the UE receives data sent by the base station on multiple physical resources
  • the UE performs demodulation detection according to the mapping manner of the data on the multiple physical resources, where the plurality of physical resources are mapped with a plurality of data not less than the physical resource quantity, and the multiple data is Each of the data is mapped to at least one physical resource, and the number of physical resources to which each data is mapped is not exactly the same; wherein the plurality of data is divided into multiple layers, and different layer data are multiplied by different weights The weight of the previous layer is greater than the weight of the latter layer, and the different data in the same layer is multiplied by the same weight; and/or, each layer of data is conjugate processed.
  • the embodiment of the invention further provides a base station, including:
  • mapping unit configured to pass a plurality of data by multiplying a weight, and/or performing a conjugate process, to map to a physical resource that is not more than the number of data, and each of the plurality of data is at least The number of physical resources mapped to one physical resource and each data is not exactly the same;
  • a sending unit configured to send data on the physical resource.
  • the data mapped on each physical resource is not greater than the number of the physical resources.
  • the data mapped to the same physical resource is superimposed and then transmitted.
  • the superposition is a linear superposition.
  • the plurality of data is divided into multiple layers, and the number of physical resources to which each data in the previous layer is mapped is greater than the number of physical resources to which each data in the subsequent layer is mapped.
  • the different data divided into the same layer is mapped to the same number of physical resources.
  • the plurality of data belongs to at least two users.
  • the embodiment of the invention further provides a user equipment, including:
  • a receiving unit configured to receive data sent by the base station on multiple physical resources
  • a demodulation unit configured to perform demodulation detection according to a mapping manner of the data on the multiple physical resources, where a plurality of data of not less than a physical resource quantity are mapped on the plurality of physical resources, and Each of the plurality of data is mapped to at least one physical resource, and the number of physical resources to which each data is mapped is not completely the same; wherein the plurality of data is divided into multiple layers, and different layers of data are multiplied With different weights, the weight of the previous layer is greater than the weight of the latter layer, and the different data in the same layer is multiplied by the same weight; and/or, each layer of data is conjugate processed.
  • the embodiment of the invention further provides a base station, including:
  • Transceiver processor, memory, bus interface, where processor, memory, and transceiver The machines are connected by a bus interface;
  • the processor is configured with one or more executable programs for performing a method of mapping a plurality of data onto a physical resource that is no more than the amount of data, and Each of the plurality of data is multiplied by a weight, and/or subjected to conjugate processing, and is mapped to at least one physical resource, and the number of physical resources to which each data is mapped is not completely the same;
  • the transceiver is configured to send data on the physical resource
  • the memory is configured to store one or more executable programs, which are used to configure the processor
  • the bus interface provides an interface, and the processor is responsible for managing the bus architecture and the usual processing.
  • the memory can store data used by the processor when performing operations.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the embodiment of the present invention further provides a user equipment, including:
  • transceiver a transceiver, a processor, a memory, a bus interface, wherein the processor, the memory and the transceiver are connected by a bus interface;
  • the transceiver is configured to receive data sent by a base station on multiple physical resources
  • the processor is configured with one or more executable programs, and the one or more executable programs are configured to perform a method of: performing demodulation detection according to a manner in which the data is mapped on the plurality of physical resources Wherein the plurality of physical resources are mapped with a plurality of data not less than the number of physical resources, and each of the plurality of data is mapped to at least one physical resource, and the physical to which each data is mapped
  • the number of resources is not completely the same; wherein the plurality of data is divided into multiple layers, and different layer data are multiplied by different weights, and the weight of the previous layer is greater than the weight of the latter layer, and the difference in the same layer The data is multiplied by the same weight; and/or each layer of data is conjugated;
  • the memory is configured to store one or more executable programs for configuring the processor.
  • the bus interface provides an interface, and the processor is responsible for managing the bus architecture and the usual processing.
  • Storage can store the data that the processor uses when performing operations.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • Embodiments of the present invention provide a data transmission and data reception detection method based on a non-orthogonal manner, a base station, and a user equipment.
  • the base station When transmitting data, the base station first passes the plurality of data passes by multiplying the weights, and/or performing conjugate processing, mapping to physical resources not exceeding the number of the data, and each of the plurality of data The data is mapped to at least one physical resource, the number of physical resources to which each data is mapped is not completely the same, and the data on the physical resource is sent, so that more data is transmitted through less physical resources, and communication is improved.
  • the data transmission capability of the system When transmitting data, the base station first passes the plurality of data passes by multiplying the weights, and/or performing conjugate processing, mapping to physical resources not exceeding the number of the data, and each of the plurality of data The data is mapped to at least one physical resource, the number of physical resources to which each data is mapped is not completely the same, and the data on the physical resource is sent,
  • 1 is a schematic diagram of data transmission in an orthogonal manner in the prior art
  • FIG. 2 is a flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 3a is a schematic diagram of 3 data transmission according to an embodiment of the present invention.
  • FIG. 3b is a schematic diagram of a specific implementation manner of data transmission in an LTE system according to an embodiment of the present disclosure
  • FIG. 3c is a schematic diagram of 2 data transmission according to an embodiment of the present invention.
  • 4 is a schematic diagram of 5 data transmission according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a data receiving detection method according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • Embodiments of the present invention provide a data transmission and data reception detection method based on a non-orthogonal manner, a base station, and a user equipment.
  • the base station When transmitting data, the base station first maps to a physical resource that is not more than the number of data by multiplying the weight, and/or performing conjugate processing, and each of the plurality of data is mapped to at least A physical resource, the number of physical resources to which each data is mapped is not completely the same, and then the data on the physical resource is sent, so that more data is transmitted through less physical resources, and the data transmission capability of the communication system is improved.
  • a data transmission method provided by an embodiment of the present invention includes:
  • Step S201 by multiplying a plurality of data by weighting, and/or performing conjugate processing, mapping to physical resources of not more than the number of data, and each of the plurality of data is mapped to at least one physical resource, The number of physical resources to which each data is mapped is not exactly the same;
  • Step S202 Send data on the physical resource.
  • the number of data sent in each physical resource may be greater than the number of physical resources.
  • the mapped data on each physical resource is not greater than the number of physical resources.
  • the data on the same physical resource can be sent in an overlapping manner, that is, the data mapped to the same physical resource is superimposed and then transmitted.
  • the superposition is a linear superposition.
  • multiple data may be divided into multiple layers, and different layer data are multiplied by different weights, wherein the weight of the previous layer is greater than the weight of the latter layer, and the same layer Different data are multiplied by the same weight; and/or each layer of data is conjugate processed, the number of physical resources to which each data in the previous layer is mapped is greater than the physical to which each data in the next layer is mapped The number of resources. And further, the different data in the same layer, the number of physical resources mapped to can be the same.
  • the plurality of data may belong to one user or may belong to at least two users.
  • the base station When multiple data belong to at least 2 users, the base station first divides N data of at least 2 users.
  • the base station Since the base station divides the N data of the user into the K layer and sends the data in the M physical resources, the data of the different layers are multiplied by different weights, wherein the weight of the previous layer is greater than the weight of the next layer, and the same layer
  • the different data is multiplied by the same weight; and/or, each layer of data is conjugate processed, and the transmission diversity of the data in the latter layer is smaller than the transmission diversity of the data in the previous layer, based on serial interference removal.
  • the receiver's data stream diversity is lowest at the first layer and then incremented by layer.
  • the transmission mode provided by the embodiment of the present invention is such that the transmission diversity degree of the data in the subsequent layer is smaller than the transmission diversity degree of the data in the previous layer, and the transmission diversity degree of the first layer data is the largest. Therefore, the diversity of each layer of data after being detected by the serial interference cancellation receiver is similar, so that the user can solve the corresponding data.
  • the sending diversity degree refers to the number of unrelated physical resources occupied by sending the data.
  • the data carried on two unrelated physical resources is irrelevant; if multiple data is carried on the same physical resource, the multiple data is related.
  • multiple data are transmitted by linear superposition on the same physical resource.
  • the power control can make the number of data sent in each physical resource greater than M, that is, K can be greater than M.
  • K can be greater than M.
  • K it is easy to cause unnecessary resource waste.
  • K is less than or equal to M, The UE can solve its own corresponding data, so it is better for the base station to send no more than M data in each physical resource.
  • the base station can send M data in a certain granularity of physical resources, thereby reducing waste of resources, and at the same time, facilitating each user to accurately solve the corresponding data.
  • the signal detection is performed by using the serial interference cancellation receiving method.
  • the receive diversity of the i-th layer data stream based on the serial interference cancellation receiver is:
  • N diversity N R - N T + i.
  • N R is the sum of the transmission diversity degree of the data and the number of receiving antennas
  • N T is the number of transmitting antennas of the data.
  • the data detected by the serial interference cancellation of the first layer is the lowest due to the detection, and the data diversity of the latter layer is the data diversity of the previous layer. 1. It can be seen that the performance of the base serial interference cancellation receiver system depends on the accuracy of the first layer interference cancellation. Based on this, an embodiment of the present invention provides a non-orthogonal joint design transmission mode, and the basic principle of the transmission is that the transmission diversity degree of the data in the previous layer is greater than the transmission diversity degree of the data in the subsequent layer. This ensures that the data of each layer is similar in diversity after being deleted by serial interference.
  • the data stream can consider the irrelevance of physical resources in one dimension of frequency, space or time, etc., and can realize the irrelevance of physical resources in any two-dimensional dimension, and so on.
  • ⁇ 1 represents the power allocation factor of User 1
  • ⁇ 2 represents the power allocation factor of User 2
  • ⁇ 3 represents the power allocation factor of User 3
  • ⁇ n represents the power allocation factor of User n.
  • the basic principle of the power allocation factor is to make the signal-to-noise ratio of each layer after the interference removal receiver is consistent or as uniform as possible.
  • the first s 1 sent by user 1 is not related to the second transmitted s 1 at time, or frequency, or space, so that it can obtain 2 degree diversity at the receiving end.
  • the degree of diversity is:
  • the post-detection diversity of the data s 2 and s 3 of user 2 and user 3 is:
  • the transmission may be performed as shown in FIG. 3b.
  • the frequency domain is represented vertically, and the time is horizontally displayed.
  • the data of users 1 and 2 is transmitted in the first frequency domain.
  • the data of 1, 3 is transmitted in the second frequency domain area.
  • two orthogonal physical resources can also be used to transmit two data.
  • user 2 can separately transmit two pieces of data in two orthogonal physical resources: S 2 and S 2 '.
  • a preferred transmission method is as shown in FIG. 4, and is sent as follows:
  • s 1 represents data of user 1
  • s 2 represents data of user 2
  • s 3 represents data of user 3
  • s 4 represents data of user 4
  • s 5 represents data of user 5, and so on
  • s n represents user n data.
  • the data of the first, second, and fifth users is sent in the first physical resource
  • the data of the first, second, and third users is sent in the second physical resource
  • the first and third are sent in the third physical resource.
  • the transmission method shown in Figure 4 can also be expressed as a matrix:
  • the base station For transmitting N data through a total of M unrelated physical resources, the base station can transmit by:
  • the generation matrix of the delivery mode the number of 1s in each row corresponding to the same layer data in the matrix G is the same, and the number of 1 in each row of the matrix G is denoted as n 1 , n 2 , n 3 , ..., n N And n 1 ⁇ n 2 ⁇ n 3 ⁇ ... ⁇ n N .
  • the layering and sending can be performed as follows:
  • the row weight refers to the number of 1 in the row, and the row weight is equal to the number of physical resources occupied by sending the corresponding data.
  • n 1 >n 2 n 3 ⁇ ... ⁇ n N .
  • ⁇ i ⁇ S i denotes that ⁇ i is multiplied by S i .
  • the sum of the first row of data may be transmitted: ⁇ 1 ⁇ s 1 + ⁇ 2 ⁇ s 2 + ⁇ 4 ⁇ s 4 + ... + ⁇ N ⁇ s N ;
  • the sum of the second row of data can be transmitted: ⁇ 3 ⁇ s 3 + ⁇ 1 ⁇ s 1 + ⁇ 2 ⁇ s 2 + ... + ⁇ N-2 ⁇ s N-2 ;
  • the sum of the data of the Mth row can be transmitted: ⁇ N-1 ⁇ s N-1 + ... + ⁇ 5 ⁇ s 5 + ⁇ 3 ⁇ s 3 + ⁇ 1 ⁇ s 1 ;
  • the sum of the first column of data can be sent: ⁇ 1 ⁇ s 1 + ⁇ 3 ⁇ s 3 + ⁇ 5 ⁇ s 5 + ... + ⁇ N-1 ⁇ s N-1 ;
  • the sum of the second column of data may be transmitted: ⁇ 2 ⁇ s 2 + ⁇ 1 ⁇ s 1 + ⁇ 3 ⁇ s 3 + ... + ⁇ N-3 ⁇ s N-3 ;
  • the sum of the data of the Mth column can be transmitted: ⁇ N ⁇ s N + ... + ⁇ 4 ⁇ s 4 + ⁇ 2 ⁇ s 2 + ⁇ 1 ⁇ s 1 .
  • the embodiment of the present invention further provides a data receiving and detecting method, as shown in FIG. 5, including:
  • Step S501 The UE receives data sent by the base station on multiple physical resources.
  • Step S502 The UE performs demodulation detection according to a mapping manner of data on multiple physical resources, where multiple physical resources are mapped with multiple data of not less than the physical resource quantity, and each of the multiple data is at least The number of physical resources that are mapped to one physical resource and each data is mapped to is not exactly the same.
  • the number of data sent in each physical resource may be greater than the number of physical resources.
  • the mapped data on each physical resource is not greater than the number of physical resources.
  • the data on the same physical resource can be sent in an overlapping manner, that is, the data mapped to the same physical resource is superimposed and then transmitted.
  • the superposition is a linear superposition.
  • multiple data may be conjugate processed and divided into multiple layers, and different layers are multiplied by different weights, and the weight of the previous layer is greater than the weight of the latter layer, the previous one.
  • the number of physical resources to which each data in the layer is mapped is greater than the number of physical resources to which each data in the next layer is mapped.
  • the different data in the same layer, the number of physical resources mapped to can be the same.
  • the plurality of data may belong to one user, or may belong to at least two users, and the UE obtains data belonging to itself after demodulation detection.
  • the UE performs demodulation detection by using a serial interference cancellation mode.
  • the serial interference cancellation technology generally demodulates and detects the data of each layer in turn, and the demodulation detection result of the previous layer is used for interference elimination in the latter layer, and the data of the latter layer is performed by eliminating the result of the interference of the data interference of the previous layer. Detection.
  • the UE preferentially detects data of a layer having a larger number of physical resources to which each data is mapped.
  • a specific data receiving and detecting method in the embodiment of the present invention, as shown in FIG. 6, includes:
  • Step S601 The UE receives, by the base station, a plurality of data that is sent by the physical resource of no more than the data quantity, where each of the multiple data is mapped to at least one physical resource, and the number of physical resources to which each data is mapped. Not exactly the same;
  • Step S602 The UE deletes the receiving mode by the serial interference, and starts to solve the data of each layer in sequence from the first layer until the data corresponding to the data is solved.
  • the step S601 includes: the UE receives N data that the base station sends to the at least two users through the M orthogonal physical resources, where M ⁇ N, and satisfies:
  • the N data is divided into K layers and sent by a total of M unrelated physical resources, and: for the data in the same layer, the number of unrelated physical resources used to transmit the data is the same, and each of the previous layers is sent.
  • the number of unrelated physical resources occupied by the data is greater than the number of unrelated physical resources occupied by each data in the layer after the transmission.
  • user 1 receives the signal as:
  • h 11 is the channel matrix experienced by the first half of the symbol and h 12 is the channel matrix experienced by the second half of the symbol.
  • s 2 and s 3 are treated as interference signals, and the detection scheme includes:
  • Step 1 Normalize the received signal:
  • Step 2 Use MMSE (Minimun Mean Square Error) receiver detection to obtain LLR 1 (s 1 ) and LLR 2 (s 1 ), respectively.
  • MMSE Minimun Mean Square Error
  • the received signal of User 2 (low diversity user) is:
  • the detection scheme includes: s 1 first detection, get followed by From Deleted, and then tested to get s 2 and s 3 .
  • Step 1 Normalize the received signal:
  • Step 2 Will Recorded as x(1) and x(2) respectively, and obtained by MMSE detection:
  • Step 3 Will After the soft demodulated LLR value is decoded, it can be considered that the detection of the user 1 signal is sufficiently accurate, and the decoded result is approximately error-free. Soft modulation is then obtained by soft modulation
  • Step 4 Will Interference deletion, get with
  • the embodiment of the present invention further provides a base station, as shown in FIG. 7, including:
  • the mapping unit 701 is configured to: pass multiple data by multiplication by weight, and/or perform conjugate processing, and map to a physical resource that is not more than the number of data, and each of the multiple data is at least The number of physical resources that are mapped to one physical resource and each data is mapped to is not exactly the same;
  • the sending unit 702 is configured to send data on the physical resource.
  • the data mapped on each physical resource is not greater than the number of the physical resources.
  • the data mapped to the same physical resource is superimposed and then transmitted.
  • the superposition is a linear superposition.
  • the plurality of data are divided into a plurality of layers, and the number of physical resources to which each data in the previous layer is mapped is greater than the number of physical resources to which each data in the subsequent layer is mapped.
  • the different data divided into the same layer is mapped to the same number of physical resources.
  • the plurality of data belong to at least 2 users.
  • An embodiment of the present invention further provides a user equipment, as shown in FIG. 8, including:
  • the receiving unit 801 is configured to receive data sent by the base station on multiple physical resources
  • the demodulation unit 802 is configured to perform demodulation detection according to a mapping manner of data on multiple physical resources, where multiple physical resources are mapped with a plurality of data not less than the physical resource quantity, and each of the multiple data A data is mapped to at least one physical resource, and the number of physical resources to which each data is mapped is not completely the same.
  • the data mapped on each physical resource is not greater than the number of physical resources.
  • the data mapped to the same physical resource is multiplied by the same weight, and is sent after the superposition processing.
  • the superposition is a linear superposition.
  • the plurality of data are divided into multiple layers, and the physical resources to which each of the previous layers is mapped are The number is greater than the number of physical resources to which each data in the next layer is mapped.
  • the different data divided into the same layer is mapped to the same number of physical resources.
  • the plurality of data belong to at least two users, and the UE obtains data of its own after demodulation detection.
  • the UE performs demodulation detection by using a serial interference cancellation method.
  • the UE preferentially detects data of a layer having a larger number of physical resources to which each data is mapped.
  • the embodiment of the invention further provides a base station, including:
  • a processor configured to pass the plurality of data by multiplying a weight, or performing a conjugate process, mapping to a physical resource that is no more than the number of the data, and each of the plurality of data is at least The number of physical resources mapped to one physical resource, each of which is mapped to is not exactly the same; the data on the physical resource is transmitted.
  • the base station can also be configured to implement other functions in the data transmission method provided by the embodiments of the present invention.
  • the base station When the base station performs data transmission, it can be implemented through a transceiver module and a wireless interface.
  • the embodiment of the invention further provides a user equipment, including:
  • the processor is configured to receive data sent by the base station on multiple physical resources; perform demodulation detection according to a mapping manner of the data on multiple physical resources, where multiple physical resources are mapped to not less than physical resources A quantity of multiple data, and each of the plurality of data is mapped to at least one physical resource, and the number of physical resources to which each data is mapped is not completely the same.
  • the user equipment may also be configured to implement other functions in the data transmission method provided by the embodiments of the present invention.
  • the user equipment When the user equipment receives each message, it can be implemented by the transceiver module and the wireless interface.
  • the embodiment of the present invention further provides a base station as shown in FIG.
  • the processor 901 is configured with one or more executable programs, where the one or more executable programs are configured to: map multiple data to physical resources that are not more than the number of data, and Each of the plurality of data is multiplied by a weight, and/or subjected to a conjugate process, and is mapped to at least one physical resource, and the number of physical resources to which each data is mapped is not completely the same;
  • a transceiver 903 configured to send data on the physical resource
  • the memory 902 is configured to store one or more executable programs, and is used to configure the processor 901;
  • a bus interface 904 is provided for providing an interface, and the processor 901 is responsible for managing the bus architecture and usual processing.
  • the memory 902 can store data used by the processor 901 in performing operations.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the embodiment of the present invention further provides a user equipment, as shown in FIG.
  • the transceiver 1003 is configured to receive data sent by the base station on multiple physical resources;
  • the processor 1001 is configured with one or more executable programs, where the one or more executable programs are configured to perform demodulation detection according to a manner in which the data is mapped on the plurality of physical resources, Wherein, the plurality of physical resources are mapped with a plurality of data not less than the number of physical resources, and each of the plurality of data is mapped to at least one physical resource, and the physical resource to which each data is mapped.
  • the number of the data is not completely the same; wherein the plurality of data is divided into multiple layers, and different layer data are multiplied by different weights, the weight of the previous layer is greater than the weight of the latter layer, and different data in the same layer Multiplying by the same weight; and/or, each layer of data is conjugated;
  • the memory 1002 is configured to store one or more executable programs, which are used to configure the processor 1001.
  • a bus interface 1004 for providing an interface the processor 1001 is responsible for managing the bus architecture and the usual deal with.
  • the memory 1002 can store data used by the processor 1001 when performing operations.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • Embodiments of the present invention provide a data transmission and data reception detection method based on a non-orthogonal manner, a base station, and a user equipment.
  • the base station When transmitting data, the base station first maps the plurality of data to physical resources that are not more than the number of data, and each of the plurality of data is multiplied by a weight, and/or subjected to conjugate processing. And at least being mapped to a physical resource, the number of physical resources to which each data is mapped is not completely the same, and then the data on the physical resource is sent, thereby realizing that more data is transmitted through less physical resources, and communication is improved.
  • the data transmission capability of the system When transmitting data, the base station first maps the plurality of data to physical resources that are not more than the number of data, and each of the plurality of data is multiplied by a weight, and/or subjected to conjugate processing. And at least being mapped to a physical resource, the number of physical resources to which each data is mapped is not
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the device is implemented in a flow chart or Multiple processes and/or block diagrams The functions specified in one or more boxes.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种基于非正交方式的数据传输、数据接收检测方法及基站、用户设备，涉及通信技术，基站在发送数据时，首先将多个数据通过与加权值相乘，和/或进行共轭处理，再映射到不多于所述数据数量的物理资源上且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同。再发送物理资源上的数据，从而实现通过较少的物理资源，发送较多的数据，提高了通信系统的数据传输能力。

Description

一种数据传输、数据接收检测方法及基站、用户设备
本申请要求在2014年2月26日提交中国专利局、申请号为201410067167.X、发明名称为“一种数据传输、数据接收检测方法及基站、用户设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术，尤其涉及一种数据传输、数据接收检测方法及基站、用户设备。
背景技术
4G(The 4th Generation Mobile Communication Technology，第四代移动通信技术)系统是基于线性接收机和正交发送的基本思想进行设计的。采用线性接收机是由于线性接收机在保证了性能的同时，工程实现也很简单；基于正交发送是由于正交发送可以使得接收端工程实现相对简单，图1是基于正交设计的一个示意图，不同数据分别在正交的物理资源上进行传输，每一个物理资源上传输一个数据，各数据是正交的，无干扰。
由于无线资源有限，所以正交系统不能达到多用户传输的系统容量。采用正交方式进行数据传输的缺陷是：系统容量较低，即系统的数据传输能力较低。
目前NTT DoCoMo(都科摩)公司提出基于能量分配的原则来实现非正交多址接入方式，参见WO2012161080，相对正交系统有性能增益，但是由于能量分配的自由度限制，其系统容量仍然不够，系统的数据传输能力较低。
发明内容
本发明实施例提供一种基于非正交方式的数据传输、数据接收检测方法及基站、用户设备，以提高通信系统的数据传输能力。
本发明实施例提供的一种数据传输方法，包括：
将多个数据映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据通过乘以权值，和/或进行共轭处理，并至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
发送所述物理资源上的数据。
由于发送数据的物理资源的数量小于数据的数量，所以提高了通信系统的数据传输能力。
为了避免资源浪费，每个物理资源上被映射的数据不大于所述物理资源的数量。
较佳的，映射到同一物理资源上的数据叠加后进行发送。
进一步，所述的叠加为线性叠加。
较佳的，所述的多个数据分为多个层，前一层中每个数据被映射到的物理资源的数量大于后一层中每个数据被映射到的物理资源的数量。
进一步，分到同一层中的不同数据，被映射到的物理资源数量相同。
进一步，不同层数据乘以不同的权值，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同。
进一步，所述的多个数据属于至少2个用户。
本发明实施例还提供一种数据接收检测方法，包括：
UE在多个物理资源上接收基站发送的数据；
UE根据所述数据在所述多个物理资源上的映射方式进行解调检测，其中，所述多个物理资源上映射了不少于物理资源数量的多个数据，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；其中，所述的多个数据分为多个层，不同层数据乘以不同的权值，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同；和/或，每一层数据进行共轭处理。
由于发送数据的物理资源的数量小于数据的数量，所以提高了通信系统的数据传输能力。
本发明实施例还提供一种基站，包括：
映射单元，用于将多个数据通过乘以权值，和/或进行共轭处理，映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
发送单元，用于发送所述物理资源上的数据。
由于发送数据的物理资源的数量小于数据的数量，所以提高了通信系统的数据传输能力。
为了避免资源浪费，每个物理资源上被映射的数据不大于所述物理资源的数量。
较佳的，映射到同一物理资源上的数据叠加后进行发送。
进一步，所述的叠加为线性叠加。
较佳的，所述的多个数据分为多个层，前一层中每个数据被映射到的物理资源的数量大于后一层中每个数据被映射到的物理资源的数量。
进一步，分到同一层中的不同数据，被映射到的物理资源数量相同。
进一步，所述的多个数据属于至少2个用户。
本发明实施例还提供一种用户设备，包括：
接收单元，用于在多个物理资源上接收基站发送的数据；
解调单元，用于根据所述数据在所述多个物理资源上的映射方式进行解调检测，其中，所述多个物理资源上映射了不少于物理资源数量的多个数据，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；其中，所述的多个数据分为多个层，不同层数据乘以不同的权值，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同；和/或，每一层数据进行共轭处理。
由于发送数据的物理资源的数量小于数据的数量，所以提高了通信系统的数据传输能力。
本发明实施例还提供一种基站，包括：
收发信机、处理器、存储器、总线接口，其中，处理器、存储器与收发 信机之间通过总线接口连接；
所述处理器，被配置了一个或多个可执行程序，所述一个或多个可执行程序用于执行以下方法：将多个数据映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据通过乘以权值，和/或进行共轭处理，并至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
所述收发信机，用于发送所述物理资源上的数据；
所述存储器，用于存储一个或多个可执行程序，被用于配置所述处理器；
所述总线接口提供接口，处理器负责管理总线架构和通常的处理。存储器可以存储处理器在执行操作时所使用的数据。
总线构架可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。
基于与方法同样的发明构思，本发明实施例还提供一种用户设备，包括：
收发信机、处理器、存储器、总线接口，其中处理器、存储器与收发信机之间通过总线接口连接；
所述收发信机，用于在多个物理资源上接收基站发送的数据；
所述处理器，被配置了一个或多个可执行程序，所述一个或多个可执行程序用于执行以下方法：根据所述数据在所述多个物理资源上的映射方式进行解调检测，其中，所述多个物理资源上映射了不少于物理资源数量的多个数据，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；其中，所述的多个数据分为多个层，不同层数据乘以不同的权值，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同；和/或，每一层数据进行共轭处理；
所述存储器，用于存储一个或多个可执行程序，被用于配置所述处理器。
所述总线接口提供接口，处理器负责管理总线架构和通常的处理。存储 器可以存储处理器在执行操作时所使用的数据。
总线构架可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。
本发明实施例提供一种基于非正交方式的数据传输、数据接收检测方法及基站、用户设备。基站在发送数据时，首先将多个数据通通过乘以权值，和/或进行共轭处理，映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同，再发送物理资源上的数据，从而实现通过较少的物理资源，发送较多的数据，提高了通信系统的数据传输能力。
附图说明
图1为现有技术中通过正交方式实现数据传输的示意图；
图2为本发明实施例提供的数据传输方法流程图；
图3a为本发明实施例提供的3数据传输示意图；
图3b为本发明实施例提供的LTE系统中3数据传输具体实现方式示意图；
图3c为本发明实施例提供的2数据传输示意图；
图4为本发明实施例提供的5数据传输示意图；
图5为本发明实施例提供的数据接收检测方法流程图；
图6为本发明实施例提供的基站示意图；
图7为本发明实施例提供的用户设备示意图；
图8为本发明实施例提供的用户设备示意图；
图9为本发明实施例提供的一种基站结构示意图；
图10为本发明实施例提供的一种用户设备结构示意图。
具体实施方式
本发明实施例提供一种基于非正交方式的数据传输、数据接收检测方法及基站、用户设备。基站在发送数据时，首先通过乘以权值，和/或进行共轭处理，映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同，再发送物理资源上的数据，从而实现通过较少的物理资源，发送较多的数据，提高了通信系统的数据传输能力。
如图2所示，本发明实施例提供的一种数据传输方法，包括：
步骤S201、将多个数据通过乘以权值，和/或进行共轭处理，映射到不多于数据数量的物理资源上，且多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
步骤S202、发送所述物理资源上的数据。
由于发送数据的物理资源的数量小于数据的数量，所以提高了通信系统的数据传输能力。
通过功率控制，可以使得每个物理资源中发送的数据数目大于物理资源的数目，但是，为了避免资源浪费，每个物理资源上被映射的数据不大于所述物理资源的数量。
较佳的，可以通过叠加的方式发送同一物理资源上的数据，即，映射到同一物理资源上的数据叠加后进行发送。其中，该叠加为线性叠加。
较佳的，在进行映射时，可以将多个数据分为多个层，不同层数据乘以不同的权值，其中，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同；和/或，每一层数据进行共轭处理,前一层中每个数据被映射到的物理资源的数量大于后一层中每个数据被映射到的物理资源的数量。并进一步的，分到同一层中的不同数据，被映射到的物理资源数量可以相同。
进一步，多个数据可以是属于一个用户的，也可以是属于至少2个用户的。
多个数据属于至少2个用户时，基站首先将至少2个用户的N个数据分 为K层；再通过总共M个不相关的物理资源发送所述N个数据，其中，N>M，且：对于同一层中的数据，发送该数据占用的不相关的物理资源的数目相同，且大于发送后一层中每个数据占用的不相关的物理资源的数目。
由于基站将用户的N个的数据分为K层在M个物理资源中发送，不同层数据乘以不同的权值，其中，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同；和/或，每一层数据进行共轭处理，后一层中的数据的发送分集度小于前一层中的数据的发送分集度，基于串行干扰删除接收机的数据流分集度在第一层获得的最低，之后依层递增。而基于本发明实施例提供的发送方式，使得后一层中的数据的发送分集度小于前一层中的数据的发送分集度，第一层数据的发送分集度最大。从而保证了每一层数据在经过串行干扰删除接收机的检测后的分集度相近，以便于用户解出自身对应的数据。
其中，发送分集度是指，发送该数据所占用的不相关的物理资源的数目。两个不相关的物理资源上承载的数据是不相关的；若在同一个物理资源上承载多个数据，则此多个数据是相关的。通常，在同一个物理资源上是通过线性叠加的方式进行多个数据的发送。
通过功率控制，可以使得每个物理资源中发送的数据数目大于M，即K可以大于M，但是，K>M时，容易造成不必要的资源浪费，通常情况下，K小于或等于M时，UE就可以解出自身对应的数据，所以，基站在每个物理资源中发送不大于M个数据较佳。
较佳的，基站可以在一定粒度的物理资源中均发送M个数据，减少资源的浪费，同时，也便于各用户较准确的解出自身对应的数据。
在接收端，利用串行干扰删除接收方式进行信号检测。基于串行干扰删除接收机第i层数据流的接收分集度为：
N分集度＝NR-NT+i.
其中，NR为数据的发送分集度和接收天线数之和，NT为数据的发送天线数。
因为串行干扰删除在做检测时，第一层的通过串行干扰删除检测出来的数据由于检测带来的分集度最低，后一层检测的数据分集度为前一层检测的数据分集度加1。由此可见基串行干扰删除接收机系统性能取决于第一层干扰删除的准确度。基于此，本发明实施例提供一种非正交联合设计发送方式，其发送的基本原则是使得前一层中的数据的发送分集度大于后一层中的数据的发送分集度。从而保证了每一层数据在通过串行干扰删除后的分集度相近。
数据流可以考虑在频率，空间或者时间等等的其中一维维度上实现物理资源的不相关，也可以在任何其中的二维维度实现物理资源的不相关，以此类推。
以三个用户、两个不相关的物理资源为例，如图3a所示，按照如下方式发送：
Figure PCTCN2015073201-appb-000001
其中，α1表示用户1的功率分配因子，α2表示用户2的功率分配因子，α3表示用户3的功率分配因子，以此类推，αn表示用户n的功率分配因子。
功率分配因子取值的基本原则是使得经过干扰删除接收机检测后的每一层信噪比一致或尽量一致。
用户1第一个发送的s1与第二个发送的s1在时间，或者频率，或者空间是不相关的，这样保证其在接收端可以获得2重分集度。对于1*2的SIMO(单输入多输出)系统由于用户1，s1符号分集度是2，可靠度最高，最先解调，这时基于串行干扰删除接收机的检测后信号s1的分集度为：
4＝2×(2个符号)+2×(2根接收天线)-1+1
在解调完第一个符号s1后，用户2、用户3的数据s2和s3的检测后分集度为：
4＝1×(1个符号)+2×(2根接收天线)-1+2
对于一个多数据流系统，每个数据流的接收分集度相同时，对应的发送方式是较可靠的，同理可以推广到大于2个数据流的情况。
以LTE系统为例，若需要实现上述发送，可以按照如图3b的方式进行发送，图3b中，纵向表示频域，横向表示时间，用户1、2的数据在第一频域区域发送，用户1、3的数据在第二频域区域发送。
如图3c所示，两个正交物理资源也可以用于发送两个数据，此时，用户2可以分别在两个正交物理资源中发送两份数据：S2和S2’。
对于五个用户、三个正交物理资源的情况，一种较佳的发送方式如图4所示，按照如下方式发送：
Figure PCTCN2015073201-appb-000002
其中，s1表示用户1的数据、s2表示用户2的数据、s3表示用户3的数据、s4表示用户4的数据、s5表示用户5的数据，以此类推，sn表示用户n的数据。
即，第一个物理资源中发送第一、二、五个用户的数据，第二个物理资源中发送第一、二、三个用户的数据，第三个物理资源中发送第一、三、四个用户的数据，各用户数据的发送分集度关系为：用户1>用户2＝用户3>用户4＝用户5，假设发射天线数和接收天线数均为3根，则各用户的接收分集度为：
Figure PCTCN2015073201-appb-000003
Figure PCTCN2015073201-appb-000004
Figure PCTCN2015073201-appb-000005
图4所示的发送方式也可以通过矩阵表示为：
Figure PCTCN2015073201-appb-000006
对于通过总共M个不相关的物理资源发送N个数据来说，基站可以通过如下方式进行发送：
Figure PCTCN2015073201-appb-000007
其中，s1～sN分别为N个数据，
Figure PCTCN2015073201-appb-000008
为N*M维的非正交发
送方式的生成矩阵，矩阵G中属于同一层数据对应的各个行中1的个数相同，矩阵G的每行中1的个数分别记为n1,n2,n3,…,nN，并且n1≥n2≥n3≥…≥nN。
较佳的，可以按照如下方式进行分层和发送：
Figure PCTCN2015073201-appb-000009
其中，行重是指，该行中1的个数，该行重等于发送相应数据所占用的物理资源个数，此时，n1>n2＝n3≥…≥nN。αi·Si表示αi与Si相乘。
或者，当K＝M时，也可以表示为如下M维方阵，其中，当N为偶数时，
Figure PCTCN2015073201-appb-000010
当N为奇数时，
Figure PCTCN2015073201-appb-000011
Figure PCTCN2015073201-appb-000012
此时，第一个物理资源中，可以发送第一行数据的和：α1·s1+α2·s2+α4·s4+……+αN·sN；
第二个物理资源中，可以发送第二行数据的和：α3·s3+α1·s1+α2·s2+……+αN-2·sN-2；
……
第M个物理资源中，可以发送第M行数据的和：αN-1·sN-1+……+α5·s5+α3·s3+α1·s1；
或者
第一个物理资源中，可以发送第一列数据的和：α1·s1+α3·s3+α5·s5+……+αN-1·sN-1；
第二个物理资源中，可以发送第二列数据的和：α2·s2+α1·s1+α3·s3+……+αN-3·sN-3；
……
第M个物理资源中，可以发送第M列数据的和：αN·sN+……+α4·s4+α2·s2+α1·s1。
本发明实施例还相应提供一种数据接收检测方法，如图5所示，包括：
步骤S501、UE在多个物理资源上接收基站发送的数据；
步骤S502、UE根据数据在多个物理资源上的映射方式进行解调检测，其中，多个物理资源上映射了不少于物理资源数量的多个数据，且多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同。
通过功率控制，可以使得每个物理资源中发送的数据数目大于物理资源的数目，但是，为了避免资源浪费，每个物理资源上被映射的数据不大于所述物理资源的数量。
较佳的，可以通过叠加的方式发送同一物理资源上的数据，即，映射到同一物理资源上的数据叠加后进行发送。其中，该叠加为线性叠加。
较佳的，在进行映射时，可以将多个数据进行共轭处理，分为多个层，不同层乘以不同的权值，前一层的权值大于后一层的权值，前一层中每个数据被映射到的物理资源的数量大于后一层中每个数据被映射到的物理资源的数量。并进一步的，分到同一层中的不同数据，被映射到的物理资源数量可以相同。
进一步，多个数据可以是属于一个用户的，也可以是属于至少2个用户的，UE在解调检测后得到属于自己的数据。
较佳的，UE采用串行干扰消除方式进行解调检测。串行干扰消除技术一般是依次解调检测出各层数据，前一层的解调检测结果用于后一层进行干扰消除，利用消除了前一层数据干扰影响的结果进行后一层的数据检测。
进一步，UE优先检测每个数据被映射到的物理资源数量较多的层的数据。
本发明实施例中的一种较具体的数据接收检测方法，如图6所示，包括：
步骤S601、UE接收基站通过不多于数据数量的物理资源发送的多个数据，所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
步骤S602、UE通过串行干扰删除接收方式，从第一层开始，依次解出各层数据，直至解出自身对应的数据。
较佳的，步骤S601中，具体包括：UE接收基站通过M个正交物理资源，向至少2个用户发送的N个数据，其中，M<N，且满足：
该N个数据分为K层，通过总共M个不相关的物理资源发送，且：对于同一层中的数据，发送该数据占用的不相关的物理资源的数目相同，发送前一层中每个数据占用的不相关的物理资源的数目都大于发送后一层中每个数据占用的不相关的物理资源的数目。
从第一层开始依次解出各层数据时，各用户的平均计算复杂度较小。
仍以如图3a所示的三个用户、两个正交物理资源为例，对于用户1来讲，用户1接收信号为：
Figure PCTCN2015073201-appb-000013
Figure PCTCN2015073201-appb-000014
其中，h11为前一半符号经历的信道矩阵，h12为后一半符号经历的信道矩阵。
s2和s3被当成干扰信号，检测方案包括：
步骤一：对接收信号进行归一化处理：
Figure PCTCN2015073201-appb-000015
Figure PCTCN2015073201-appb-000016
步骤二：使用MMSE(Minimun Mean Square Error，最小均方误差)接收 机检测，分别得到LLR1(s1)和LLR2(s1)。
利用LLR1(s1)+LLR2(s1)进行软解调，得到
Figure PCTCN2015073201-appb-000017
用户2(低分集用户)的接收信号为：
Figure PCTCN2015073201-appb-000018
Figure PCTCN2015073201-appb-000019
检测方案包括：s1先检测，得到
Figure PCTCN2015073201-appb-000020
然后将
Figure PCTCN2015073201-appb-000021
从
Figure PCTCN2015073201-appb-000022
中删除，再进行检测得到s2和s3。
步骤一：将接收信号归一化：
Figure PCTCN2015073201-appb-000023
Figure PCTCN2015073201-appb-000024
步骤二：将
Figure PCTCN2015073201-appb-000025
分别记为x(1)和x(2)，利用MMSE检测后得到：
Figure PCTCN2015073201-appb-000026
Figure PCTCN2015073201-appb-000027
利用LLR1(T(1))+LLR2(T(2))进行软解调，得到
Figure PCTCN2015073201-appb-000028
步骤三：将
Figure PCTCN2015073201-appb-000029
软解调后的LLR值进行过译码，可以认为对用户1信号的检测足够准确，译码后的结果近似为无错的。然后经过软调制得到软调制符号
Figure PCTCN2015073201-appb-000030
步骤四：将
Figure PCTCN2015073201-appb-000031
干扰删除，得到
Figure PCTCN2015073201-appb-000032
和
Figure PCTCN2015073201-appb-000033
Figure PCTCN2015073201-appb-000034
Figure PCTCN2015073201-appb-000035
用户3的检测流程类似。
本发明实施例还相应提供一种基站，如图7所示，包括：
映射单元701，用于将多个数据通过乘以权值，和/或进行共轭处理，映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
发送单元702，用于发送所述物理资源上的数据。
较佳的，每个物理资源上被映射的数据不大于所述物理资源的数量。
较佳的，映射到同一物理资源上的数据叠加后进行发送。
进一步，该叠加为线性叠加。
较佳的，多个数据分为多个层，前一层中每个数据被映射到的物理资源的数量大于后一层中每个数据被映射到的物理资源的数量。
进一步，不同层数据乘以不同的权值，其中，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同；和/或，每一层数据进行共轭处理
进一步，分到同一层中的不同数据，被映射到的物理资源数量相同。
较佳的，多个数据属于至少2个用户。
本发明实施例还提供一种用户设备，如图8所示，包括：
接收单元801，用于在多个物理资源上接收基站发送的数据；
解调单元802，用于根据数据在多个物理资源上的映射方式进行解调检测，其中，多个物理资源上映射了不少于物理资源数量的多个数据，且多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同。
较佳的，每个物理资源上被映射的数据不大于物理资源的数量。
较佳的，映射到同一物理资源上的数据乘以相同的权值，是经过叠加处理后发送的。
进一步，该叠加为线性叠加。
较佳的，多个数据分为多个层，前一层中每个数据被映射到的物理资源 的数量大于后一层中每个数据被映射到的物理资源的数量。
进一步，分到同一层中的不同数据，被映射到的物理资源数量相同。
较佳的，多个数据属于至少2个用户，UE在解调检测后得到属于自己的数据。
进一步，UE采用串行干扰消除方式进行解调检测。
更进一步，UE优先检测每个数据被映射到的物理资源数量较多的层的数据。
本发明实施例还提供一种基站，包括：
处理器，被配置为用于将多个数据通过乘以权值，或者进行共轭处理，映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；发送所述物理资源上的数据。
该基站还可以被配置为实现本发明实施例提供的数据传输方法中的其他功能。
该基站进行数据发送时，可以通过收发信机模块和无线接口实现。
本发明实施例还提供一种用户设备，包括：
处理器，被配置为用于在多个物理资源上接收基站发送的数据；根据数据在多个物理资源上的映射方式进行解调检测，其中，多个物理资源上映射了不少于物理资源数量的多个数据，且多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同。
该用户设备还可以被配置为实现本发明实施例提供的数据传输方法中的其他功能。
该用户设备进行各消息的接收时，可以通过收发信机模块和无线接口实现。
基于与方法同样的发明构思，本发明实施例还提供一种如图9所示的基站，包括：
收发信机903、处理器901、存储器902、总线接口904，其中，处理器 901、存储器902与收发信机903之间通过总线接口904连接；
处理器901，被配置了一个或多个可执行程序，所述一个或多个可执行程序用于执行以下方法：将多个数据映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据通过乘以权值，和/或进行共轭处理，并至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
收发信机903，用于发送所述物理资源上的数据；
存储器902，用于存储一个或多个可执行程序，被用于配置处理器901；
总线接口904，用于提供接口，处理器901负责管理总线架构和通常的处理。存储器902可以存储处理器901在执行操作时所使用的数据。
总线构架可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。
基于与方法同样的发明构思，本发明实施例还提供一种如图10所示的用户设备，包括：
收发信机1003、处理器1001、存储器1002、总线接口1004，其中处理器1001、存储器1002与收发信机1003之间通过总线接口1004连接；
收发信机1003，用于在多个物理资源上接收基站发送的数据；
处理器1001，被配置了一个或多个可执行程序，所述一个或多个可执行程序用于执行以下方法：根据所述数据在所述多个物理资源上的映射方式进行解调检测，其中，所述多个物理资源上映射了不少于物理资源数量的多个数据，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；其中，所述的多个数据分为多个层，不同层数据乘以不同的权值，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同；和/或，每一层数据进行共轭处理；
存储器1002，用于存储一个或多个可执行程序，被用于配置处理器1001。
总线接口1004，用于提供接口，处理器1001负责管理总线架构和通常的 处理。存储器1002可以存储处理器1001在执行操作时所使用的数据。
总线构架可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。
本发明实施例提供一种基于非正交方式的数据传输、数据接收检测方法及基站、用户设备。基站在发送数据时，首先将多个数据映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据通过乘以权值，和/或进行共轭处理，并至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同，再发送物理资源上的数据，从而实现通过较少的物理资源，发送较多的数据，提高了通信系统的数据传输能力。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或 多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (25)

  1. 一种数据传输方法，其特征在于，包括：
    将多个数据映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据通过乘以权值，和/或进行共轭处理，并至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
    发送所述物理资源上的数据。
  2. 如权利要求1所述的方法，其特征在于，每个物理资源上被映射的数据不大于所述物理资源的数量。
  3. 如权利要求2所述的方法，其特征在于，映射到同一物理资源上的数据叠加后进行发送。
  4. 如权利要求3所述的方法，其特征在于，所述的叠加为线性叠加。
  5. 如权利要求1所述的方法，其特征在于，所述的多个数据分为多个层，前一层中每个数据被映射到的物理资源的数量大于后一层中每个数据被映射到的物理资源的数量。
  6. 如权利要求5所述的方法，其特征在于，分到同一层中的不同数据，被映射到的物理资源数量相同。
  7. 如权利要求5所述的方法，其特征在于，不同层数据乘以不同的权值，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同。
  8. 如权利要求1所述的方法，其特征在于，所述的多个数据属于至少2个用户。
  9. 一种数据接收检测方法，其特征在于，包括：
    用户设备UE在多个物理资源上接收基站发送的数据；
    UE根据所述数据在所述多个物理资源上的映射方式进行解调检测，其中，所述多个物理资源上映射了不少于物理资源数量的多个数据，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的 物理资源的数量不完全相同；其中，所述的多个数据分为多个层，不同层数据乘以不同的权值，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同；和/或，每一层数据进行共轭处理。
  10. 一种基站，其特征在于，包括：
    映射单元，用于将多个数据通过乘以权值，和/或进行共轭处理，映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
    发送单元，用于发送所述物理资源上的数据。
  11. 如权利要求10所述的基站，其特征在于，每个物理资源上被映射的数据不大于所述物理资源的数量。
  12. 如权利要求11所述的基站，其特征在于，映射到同一物理资源上的数据叠加后进行发送。
  13. 如权利要求12所述的基站，其特征在于，所述的叠加为线性叠加。
  14. 如权利要求10所述的基站，其特征在于，所述的多个数据分为多个层，前一层中每个数据被映射到的物理资源的数量大于后一层中每个数据被映射到的物理资源的数量。
  15. 如权利要求14所述的基站，其特征在于，分到同一层中的不同数据，被映射到的物理资源数量相同。
  16. 如权利要求10所述的基站，其特征在于，所述的多个数据属于至少2个用户。
  17. 一种用户设备，其特征在于，包括：
    接收单元，用于在多个物理资源上接收基站发送的数据；
    解调单元，用于根据所述数据在所述多个物理资源上的映射方式进行解调检测，其中，所述多个物理资源上映射了不少于物理资源数量的多个数据，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；其中，所述的多个数据分为多个层，不同层数据乘以不同的权值，前一层的权值大于后一层的权值，同一层中的 不同数据乘以的权值相同；和/或，每一层数据进行共轭处理。
  18. 一种基站，其特征在于，包括：
    收发信机、处理器、存储器、总线接口，其中，处理器、存储器与收发信机之间通过总线接口连接；
    所述处理器，被配置了一个或多个可执行程序，所述一个或多个可执行程序用于执行以下方法：将多个数据映射到不多于所述数据数量的物理资源上，且所述多个数据中的每一个数据通过乘以权值，和/或进行共轭处理，并至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；
    所述收发信机，用于发送所述物理资源上的数据；
    所述存储器，用于存储一个或多个可执行程序，被用于配置所述处理器；
    所述总线接口，用于提供接口。
  19. 如权利要求18所述的基站，其特征在于，每个物理资源上被映射的数据不大于所述物理资源的数量。
  20. 如权利要求19所述的基站，其特征在于，映射到同一物理资源上的数据叠加后进行发送。
  21. 如权利要求20所述的基站，其特征在于，所述的叠加为线性叠加。
  22. 如权利要求18所述的基站，其特征在于，所述的多个数据分为多个层，前一层中每个数据被映射到的物理资源的数量大于后一层中每个数据被映射到的物理资源的数量。
  23. 如权利要求23所述的基站，其特征在于，分到同一层中的不同数据，被映射到的物理资源数量相同。
  24. 如权利要求18所述的基站，其特征在于，所述的多个数据属于至少2个用户。
  25. 一种用户设备，其特征在于，包括：
    收发信机、处理器、存储器、总线接口，其中处理器、存储器与收发信机之间通过总线接口连接；
    所述收发信机，用于在多个物理资源上接收基站发送的数据；
    所述处理器，被配置了一个或多个可执行程序，所述一个或多个可执行程序用于执行以下方法：根据所述数据在所述多个物理资源上的映射方式进行解调检测，其中，所述多个物理资源上映射了不少于物理资源数量的多个数据，且所述多个数据中的每一个数据至少被映射到一个物理资源、每一个数据被映射到的物理资源的数量不完全相同；其中，所述的多个数据分为多个层，不同层数据乘以不同的权值，前一层的权值大于后一层的权值，同一层中的不同数据乘以的权值相同；和/或，每一层数据进行共轭处理；
    所述存储器，用于存储一个或多个可执行程序，被用于配置所述处理器。
    所述总线接口，用于提供接口。
PCT/CN2015/073201 2014-02-26 2015-02-16 一种数据传输、数据接收检测方法及基站、用户设备 WO2015127885A1 (zh)

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