WO2016188195A1

WO2016188195A1 - Data transmission method and device

Info

Publication number: WO2016188195A1
Application number: PCT/CN2016/076282
Authority: WO
Inventors: 李卫敏; 李儒岳; 袁志锋; 徐俊; 唐红
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-05-22
Filing date: 2016-03-14
Publication date: 2016-12-01
Also published as: CN106304349A; CN106304349B

Abstract

Disclosed in the present invention are a data transmission method and device, the method comprises: acquiring multi-user transmission configuration information corresponding to a designated time-frequency resource; the multi-user transmission configuration information corresponding to the designated time-frequency resource comprises: configuration information of a multi-user transmission, performed on the designated time frequency resource, of plural terminals having different service requests, service features and service types; performing data transmission on the designated time frequency resource according to the multi-user transmission configuration information corresponding to the designated time-frequency resource.

Description

Data transmission method and device

Technical field

This application relates to, but is not limited to, the field of wireless communications.

Background technique

The multi-user information transmission technology can be classified into OMA (Orthogonal Multiple Access) and Non-Orthogonal Multiple Access (NOMA) according to the access mode. In the OMA technology, multiple users respectively use mutually orthogonal communication resources for information transmission, and multiple users in the NOMA technology can perform information transmission on the same communication resource or non-orthogonal communication resources. The communication resource may be a frequency domain communication resource (such as a carrier), a time domain communication resource (such as a time slot), a time-frequency domain communication resource (such as a time-frequency resource block), a code domain communication resource (such as a spreading code), or an airspace communication. Resources (such as beams), etc.

The multi-user information transmission technology based on the NOMA method may also be referred to as a Multi-User Superposition Transmission (MUST) technology, that is, information of multiple users is superimposed on the same communication resource or non-orthogonal communication resource. Then, the superimposition processing may be direct superposition of information of a plurality of users, or the information of the plurality of users may be superimposed after a certain processing, for example, power control, precoding processing, or expansion processing.

Since the information of multiple users interferes with each other during multi-user overlay transmission, the receiver needs to adopt multi-user detection technology to suppress or eliminate inter-user interference, and separate each user's information, such as serial interference cancellation (Successive Interference Cancellation, SIC) technology.

Correlated research proves that when multiple terminals with significant differences in channel quality are superimposed and transmitted based on the NOMA method, larger system capacity can be obtained compared to OMA-based multi-user information transmission, and channel quality can be improved. At the same time as the throughput of the terminal, the terminal with better channel quality still has higher throughput. When multi-user information transmission is performed based on the OMA method, if the high system capacity or the high throughput of the terminal with good channel quality is to be ensured, the throughput of the terminal with poor channel quality cannot be effectively improved, or if the channel is to be improved. The throughput of a poor quality terminal cannot effectively guarantee the high throughput and high system capacity of a terminal with good channel quality. Therefore, the multi-user overlay transmission based on the NOMA method can be used for Improve the throughput and system capacity of the terminal.

Due to the degree of development of the technology and the complexity of the receiver and the cost of the device, the multi-user overlay transmission based on the NOMA method is not applied in the actual communication system. However, with the rapid development of the technology, the hardware processing capability is significantly improved. Costs are also significantly reduced, and multi-user non-orthogonal overlay transmission techniques are being reconsidered for use in actual communication systems. Currently, the Release 13 version of the LTE (Long Term Evolution) communication system is evaluating the feasibility of multi-user overlay transmission technology, including deployment scenarios, performance evaluation, and multi-user overlay transmission schemes.

A plurality of types of communication services, such as an FTP (File Transfer Protocol) service, a VoIP (Voice over Internet Protocol) service, and a packet service, are available in an actual communication system (for example, an LTE system). Different needs and characteristics, for example, FTP services can be dynamically scheduled and link adaptive scheduling, VoIP service packets are small and semi-persistent scheduling and fixed rate transmission, and packet services can also be transmitted at a fixed rate.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The related art solution does not consider how to combine the service requirements or service characteristics of the terminal when applying the multi-user overlay transmission technology in the actual communication system. In addition, MIMO (Multiple-Input Multiple-Output) transmission technology is a key technology to improve system capacity and spectrum efficiency, including SU-MIMO (Single-User MIMO) and MU-MIMO (Multi -User MIMO) and other transmission modes. The related art solution also does not consider how to apply the multi-user overlay transmission technology in combination with the service requirements or service characteristics of the terminal based on the MIMO transmission technology.

The present invention provides a data transmission method and apparatus, which can implement multi-user transmission in combination with service requirements, service characteristics or service types of multiple terminals, thereby achieving the purpose of effectively improving terminal throughput and system capacity.

A data transmission method includes:

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource; the multi-user transmission configuration information corresponding to the specified time-frequency resource includes: a plurality of terminals having different service requirements, service features, or service types at the specified time-frequency Configuration information for multi-user transmission on the resource;

And performing data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Optionally, the multi-user transmission includes:

Multi-user overlay transmission, and/or multi-user multiple input multiple output transmission.

Optionally, the multi-user transmission configuration information includes any one or any of the following:

Multi-user transmission configuration information corresponding to multiple resource blocks respectively;

Multi-user transmission configuration information corresponding to each of the plurality of resource block groups;

Multi-user transmission configuration information corresponding to the entire transmission bandwidth.

Multi-user transmission configuration information corresponding to one subframe;

Multi-user transmission configuration information corresponding to each of the plurality of subframes;

Multi-user transmission configuration information corresponding to each of the plurality of subframe groups;

Multi-user transmission configuration information corresponding to one radio frame;

Multi-user transmission configuration information corresponding to each of the plurality of radio frames.

Optionally, the configuration information includes at least one of the following:

Power control information;

Transport layer indication information;

Modulation coding mode information;

Code sequence information.

Optionally, the power control information includes any one or any of the following:

Power allocation ratio information, power allocation parameter information, power control parameter information, power adjustment parameter information.

Optionally, the transport layer indication information includes:

Transmit layer information, and/or multi-user transport layer information.

Optionally, the code sequence information includes:

Spread code information, and/or pre-coded information.

Optionally, the specified time-frequency resource is a time-frequency resource for performing data transmission according to system scheduling information.

Optionally, before the acquiring the multi-user transmission configuration information corresponding to the specified time-frequency resource, the method further includes:

Receive multi-user transmission configuration information.

Determine multi-user transmission configuration information.

Optionally, after the determining the multi-user transmission configuration information, the method further includes:

Sending the multi-user transmission configuration information.

Optionally, the sending the multi-user transmission configuration information includes at least one of the following:

Transmitting the multi-user transmission configuration information by using broadcast signaling;

Transmitting the multi-user transmission configuration information by using multicast signaling;

Transmitting the multi-user transmission configuration information by using radio resource control RRC signaling;

The multi-user transmission configuration information is transmitted through downlink control information DCI.

Optionally, the radio resource control RRC signaling includes semi-persistent scheduling configuration signaling.

Optionally, the acquiring the multi-user transmission configuration information corresponding to the specified time-frequency resource includes:

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the received multi-user transmission configuration information; and/or,

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the determined multi-user transmission configuration information.

Optionally, the acquiring the multi-user transmission configuration information corresponding to the specified time-frequency resource from the received multi-user transmission configuration information includes any one or any of the following manners:

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received broadcast signaling;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received multicast signaling;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received RRC signaling;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received DCI signaling;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received RRC signaling and the multi-user transmission configuration indication information carried in the received DCI signaling.

Optionally, the acquiring the multi-user transmission configuration information corresponding to the specified time-frequency resource from the determined multi-user transmission configuration information includes at least one of the following:

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the determined multi-user transmission configuration information according to the system scheduling information;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the determined multi-user transmission configuration information according to the system preset rule.

Optionally, the performing, according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, performing data transmission on the specified time-frequency resource, including at least one of the following:

Receiving data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource;

And transmitting data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Optionally, the receiving, according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, receiving data on the specified time-frequency resource, including at least one of the following:

Receiving data sent by the base station on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource;

And receiving, according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, data sent by a plurality of terminals having different service requirements, service features, or service types on the specified time-frequency resource.

Optionally, the sending, according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, the data on the specified time-frequency resource, including at least one of the following:

And superimposing data of multiple terminals having different service requirements, service features, or service types on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, and transmitting the data;

And performing, according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, spatially multiplexing data of multiple terminals having different service requirements, service features, or service types on the specified time-frequency resource, and then transmitting the data;

And performing spatial multiplexing on the specified time-frequency resource on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, and then sending the data to be sent;

And sending the to-be-sent data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

A data transmission device comprising:

The acquiring module is configured to: obtain multi-user transmission configuration information corresponding to the specified time-frequency resource; and the multi-user transmission configuration information corresponding to the specified time-frequency resource includes: multiple terminals having different service requirements, service features, or service types Configuring configuration information for multi-user transmission on the specified time-frequency resource;

The transmission module is configured to: perform data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Optionally, the multi-user transmission includes:

Power control information;

Transport layer indication information;

Modulation coding mode information;

Code sequence information.

Optionally, the transport layer indication information includes:

Transmit layer information, and/or multi-user transport layer information.

Optionally, the code sequence information includes:

Spread code information, and/or pre-coded information.

Optionally, the acquiring module is further configured to: before acquiring the multi-user transmission configuration information corresponding to the specified time-frequency resource, receive the multi-user transmission configuration information.

Optionally, the acquiring module is further configured to: before acquiring the multi-user transmission configuration information corresponding to the specified time-frequency resource, determine the multi-user transmission configuration information.

Optionally, the obtaining module is further configured to: send after determining the multi-user transmission configuration information The multi-user transmits configuration information.

Optionally, the acquiring module is configured to: send the multi-user transmission configuration information to include at least one of the following:

Optionally, the obtaining module is configured to:

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the received multi-user transmission configuration information; and/or acquiring multi-user transmission configuration information corresponding to the specified time-frequency resource from the determined multi-user transmission configuration information .

Optionally, the acquiring module is configured to: obtain the multi-user transmission configuration information corresponding to the specified time-frequency resource from the received multi-user transmission configuration information, including any one of the following manners:

Optionally, the obtaining module is configured to: obtain the determined multi-user transmission configuration information. The multi-user transmission configuration information corresponding to the specified time-frequency resource includes at least one of the following:

Optionally, the transmitting module is configured to perform data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, including at least one of the following:

Optionally, the transmitting module is configured to receive data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, including at least one of the following:

Optionally, the transmitting module is configured to: send data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, including at least one of the following:

A computer readable storage medium storing computer executable instructions for performing the method of any of the above.

In the solution of the embodiment of the present invention, the multi-user transmission configuration information corresponding to the specified time-frequency resource is obtained, and multiple different service requirements, service features, or service types are implemented on the specified time-frequency resource according to the multi-user transmission configuration information. The transmission of the data of the terminal, wherein the multi-user transmission configuration information corresponding to the specified time-frequency resource includes configuration information of multiple terminals having different service requirements, service features or service types for performing multi-user transmission on the specified time-frequency resource. Therefore, the solution of the embodiment of the present invention can be used to implement multi-user transmission in combination with service requirements, service features, or service types of multiple terminals, thereby achieving an effect of effectively improving terminal throughput and system capacity.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present invention;

2 is a flowchart of a data transmission method according to Embodiment 1 of the present invention;

3 is a flowchart of a data transmission method according to Embodiment 2 of the present invention;

4 is a flowchart of a data transmission method according to Embodiment 3 of the present invention;

FIG. 5 is a flowchart of a data transmission method according to Embodiment 4 of the present invention;

6 is a schematic diagram of downlink multi-user overlay transmission and multi-user transmission configuration information in application example 1 of the present invention;

7 is a schematic diagram of downlink multi-user overlay transmission and multi-user transmission configuration information in application example 2 of the present invention;

8 is a schematic diagram of downlink multi-user overlay transmission and multi-user transmission configuration information in application example 3 of the present invention;

9 is a downlink multi-user superimposed transmission and multi-user transmission configuration letter in the application example 4 of the present invention Schematic diagram of interest;

10 is a schematic diagram of multi-user transmission configuration information and downlink multi-user overlay transmission in application example 5 of the present invention;

11 is a schematic diagram of multi-user transmission configuration information and uplink multi-user transmission in Application Example 6 of the present invention;

12 is a schematic diagram of uplink multi-user transmission in application example 7 of the present invention;

FIG. 13 is a schematic diagram of a data transmission apparatus according to an embodiment of the present invention.

Embodiments of the invention

Embodiments of the present invention will be described below with reference to the drawings and embodiments.

It should be noted that the features of the embodiments of the present invention and the embodiments may be combined with each other if they do not conflict. Additionally, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

A data transmission method provided by the embodiment of the present invention can be applied to a terminal and/or a base station. As shown in FIG. 1, the method includes:

Step 101: Acquire multi-user transmission configuration information corresponding to the specified time-frequency resource. The multi-user transmission configuration information corresponding to the specified time-frequency resource includes: multiple terminals having different service requirements, service features, or service types. Specify configuration information for multi-user transmission on time-frequency resources;

Step 102: Perform data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Optionally, the multi-user transmission comprises: multi-user overlay transmission, and/or multi-user MIMO transmission.

Optionally, the multi-user transmission configuration information may include, but is not limited to, any one or any of the following:

Optionally, the configuration information may include, but is not limited to, at least one of the following:

Power control information;

Transport layer indication information;

Modulation coding mode information;

Code sequence information.

The power control information may include, but is not limited to, any one or any of the following: power allocation ratio information, power allocation parameter information, power control parameter information, and power adjustment parameter information.

The transport layer indication information includes: transport layer number information, and/or multi-user transport layer information. The transport layer number information is used to indicate the number of transport layers, and the multi-user transport layer information is used to indicate which transport layer performs multi-user transmission.

The code sequence information includes: extended code information, and/or pre-coded information.

Optionally, the specified time-frequency resource may be, but is not limited to, a time-frequency resource for performing data transmission determined according to system scheduling information.

The system scheduling information may include, but is not limited to, any one or more of the following: downlink scheduling information, uplink scheduling information, semi-persistent scheduling information, scheduling information of a system fixed configuration, and the like.

Optionally, before performing step 101, the method may further include the step 103: receiving multi-user transmission configuration information.

Optionally, before performing step 101, the method may further include the step 104: determining multi-user transmission configuration information.

Optionally, after performing step 104, the method may further include the step 105: sending the multi-user transmission configuration information.

The sending the multi-user transmission configuration information may be, but is not limited to, including at least one of the following:

Transmitting the multi-user transmission configuration information by using Radio Resource Control (RRC) signaling;

The multi-user transmission configuration information is sent by Downlink Control Information (DCI).

The radio resource control RRC signaling may include, but is not limited to, including semi-persistent scheduling configuration signaling.

Optionally, in step 101, acquiring multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to, including:

The obtaining, by the received multi-user transmission configuration information, the multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to, any one of the following or any of the following manners:

Obtaining and specifying time-frequency resources from the multi-user transmission configuration information carried in the received DCI signaling Corresponding multi-user transmission configuration information;

The obtaining, by the determined multi-user transmission configuration information, the multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to, at least one of the following:

Optionally, in step 102, performing data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to, at least one of the following:

The data may be received on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, and may include, but is not limited to, at least one of the following:

The data may be sent on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, and may include, but is not limited to, at least one of the following:

The service requirement or service feature may include, but is not limited to, dynamic scheduling, semi-persistent scheduling, semi-persistent scheduling, link adaptive transmission, high rate transmission, low rate transmission, fixed rate transmission, large data packet, small data packet, and the like; The service type can be, but is not limited to, an FTP service, a VoIP service, an HTTP (HyperText Transfer Protocol) service, a packet service, and the like.

The implementation flow of the data transmission method of the embodiment of the present invention applied in different situations will be described below with four embodiments.

Embodiment 1

A data transmission method provided in this embodiment may be applied to a terminal for downlink data reception. As shown in FIG. 2, the method includes:

Step 201: Acquire multi-user transmission configuration information corresponding to the specified time-frequency resource. The multi-user transmission configuration information corresponding to the specified time-frequency resource includes: multiple terminals having different service requirements, service features, or service types. Specify configuration information for multi-user transmission on time-frequency resources;

Step 202: Perform data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Power control information;

Transport layer indication information;

Modulation coding mode information;

Code sequence information.

The power control information may include, but is not limited to, power allocation ratio information, and/or power allocation parameter information.

The system scheduling information may include, but is not limited to, any one or more of the following: downlink scheduling information, semi-persistent scheduling information, scheduling information of a system fixed configuration, and the like.

Optionally, before performing step 201, the method further includes the step 203: receiving multi-user transmission configuration information. The multiple user transmission configuration information may be received from the base station, or may be received from other devices or channels.

Correspondingly, in step 201, acquiring multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to, including:

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the received multi-user transmission configuration information.

The RRC signaling may include, but is not limited to, including semi-persistent scheduling configuration signaling.

Optionally, in step 202, performing data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to:

And receiving data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

The receiving the data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to:

And receiving data sent by the base station on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Embodiment 2

The data transmission method provided in this embodiment can be applied to the terminal for uplink data transmission. As shown in FIG. 3, the method includes:

Step 301: Acquire multi-user transmission configuration information corresponding to the specified time-frequency resource. The multi-user transmission configuration information corresponding to the specified time-frequency resource includes: multiple terminals having different service requirements, service features, or service types. Specify configuration information for multi-user transmission on time-frequency resources;

Step 302: Perform data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Power control information;

Transport layer indication information;

Modulation coding mode information;

Code sequence information.

The power control information may include, but is not limited to, power control parameter information, and/or power adjustment parameter information.

The system scheduling information may include, but is not limited to, any one or more of the following: uplink scheduling information, semi-persistent scheduling information, scheduling information of a system fixed configuration, and the like.

Optionally, before step 301 is performed, the method further includes: Step 303: Receive multi-user transmission configuration information.

Optionally, before performing step 301, the method further includes step 304: determining multi-user transmission configuration information.

Optionally, in step 301, acquiring multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to, including:

Optionally, in step 302, performing data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to:

Embodiment 3

A data transmission method provided in this embodiment may be applied to a base station for downlink data. Send, as shown in Figure 4, the method includes:

Step 401: Acquire multi-user transmission configuration information corresponding to the specified time-frequency resource. The multi-user transmission configuration information corresponding to the specified time-frequency resource includes: multiple terminals having different service requirements, service features, or service types. Specify configuration information for multi-user transmission on time-frequency resources;

Step 402: Perform data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Power control information;

Transport layer indication information;

Modulation coding mode information;

Code sequence information.

The power control information may include, but is not limited to, power allocation ratio information, and/or Or, power allocation parameter information.

Optionally, before step 401 is performed, the method further includes step 403: determining multi-user transmission configuration information.

Optionally, after performing step 403, the method further includes the step 404: sending the multi-user transmission configuration information.

Transmitting the multi-user transmission configuration information by using RRC signaling;

The multi-user transmission configuration information is transmitted through the DCI.

Optionally, in step 401, acquiring multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to, including:

Obtaining and specifying a time-frequency resource from the determined multi-user transmission configuration information according to system scheduling information Corresponding multi-user transmission configuration information;

Optionally, in step 402, performing data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to:

Embodiment 4

A data transmission method provided in this embodiment may be applied to a base station for uplink data reception. As shown in FIG. 5, the method includes:

Step 501: Acquire multi-user transmission configuration information corresponding to the specified time-frequency resource. The multi-user transmission configuration information corresponding to the specified time-frequency resource includes: multiple terminals having different service requirements, service features, or service types. Specify configuration information for multi-user transmission on time-frequency resources;

Step 502: According to the multi-user transmission configuration information corresponding to the specified time-frequency resource, Specify data transmission on time-frequency resources.

Power control information;

Transport layer indication information;

Modulation coding mode information;

Code sequence information.

Optionally, before step 501 is performed, the method further includes step 503: determining multi-user transmission configuration information.

Optionally, in step 501, acquiring multi-user transmission configuration information corresponding to the specified time-frequency resource may include, but is not limited to, including:

Optionally, in step 502, the data transmission is performed on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, which may include, but is not limited to:

The embodiments of the present invention are described in detail below with reference to application examples.

Application example one

The data transmission method provided by this example is used for downlink multi-user overlay transmission.

As shown in FIG. 6, the base station performs superimposed transmission of data of a plurality of terminals having different service requirements, service features, or service types on a specified time-frequency resource; wherein, the data of the terminals UE1, UE2, and UE3 are smaller. VoIP service, and according to the low-rate Modulation and Coding Scheme (MCS) transmission, the data of the terminal UE4 is a large FTP service of the data packet; the data of the UE1, UE2, and UE3 are transmitted according to the fixed rate of the fixed MCS. Then, the base station may superimpose and transmit the data of the UE4, that is, the multi-user superimposed transmission, on the basis of transmitting the data of the UE1, the UE2, and the UE3 by using Resource Blocks (RBs) RB1 and RB2, RB3, and RB4, RB5, and RB6, respectively. ;

Since the data of the UE4 and the data of the UE1, the UE2, and the UE3 interfere with each other when the multi-user superimposed transmission is performed, it is necessary to allocate relatively more power for the data transmission of the UE1, the UE2, and the UE3 to meet the service transmission requirement, and ensure that the data can be transmitted. It is correctly received by the terminal, and the remaining relatively less power can be allocated to the data transmission of the UE4; since the power allocated by the data transmission of the UE4 is relatively small, it needs to pass the multi-user detection technology (for example, SIC) when receiving data. After eliminating the interference formed by the terminal of the superimposed transmission and detecting the data sent by the base station, the UE 4 needs to know some information of the superimposed transmission terminal, for example, the power allocation information of the UE1, UE2, UE3, UE4, the transmission layer information, etc., so that UE4 can eliminate signals from other interfering terminals and detect its own data;

Therefore, the base station needs to determine the multi-user transmission configuration information corresponding to the specified time-frequency resource, and sends the configuration information to the user terminal UE4. As shown in FIG. 6, the base station determines the multi-user transmission configuration information corresponding to the specified time-frequency resource, and the multi-user transmission The configuration information includes configuration information that the UE1, the UE2, and the UE3 perform superimposed transmission with the UE4 on the RB group (RB1, RB2), (RB3, RB4), and (RB5, RB6), where the configuration information includes the terminal UE1 that is superimposed and transmitted. Downlink power allocation (PA) information of UE2 and UE3 (ie, PA1, PA2, PA3);

The downlink power allocation information of the terminal that is superimposed and transmitted may be power allocation ratio information between terminals that are superimposed and transmitted, for example, a power allocation ratio value, or an indication of a power allocation ratio. For example, the system pre-defines multiple power allocation ratios. , indicating, by an index, a power allocation ratio between terminals that are superimposed and transmitted; or a power allocation ratio of power of a terminal that is superimposed and transmitted with respect to a preset reference reference (such as a maximum transmission power); or a power allocation parameter of a terminal that is superimposed and transmitted , for example, the power value, or, relative to a preset reference datum (such as maximum transmit power) The power value, or an indication of the power allocation value, for example, the system defines a plurality of power values in advance, and indicates, by an index, a power value of the terminal that is superimposed and transmitted.

In this example, since the data of UE1, UE2, and UE3 are transmitted according to a fixed MCS, the MCS information of the terminal that is superimposed and transmitted is not required to be carried in the multi-user transmission configuration information.

In this example, according to the system preset rule, the UE1, UE2, and UE3 that perform VoIP service transmission and the UE4 that performs FTP service transmission are superimposed and transmitted at the first transport layer. Therefore, the multi-user transmission configuration information does not need to carry the overlay transmission. The transport layer indication information of the terminal.

In this example, the base station may send the multi-user transmission configuration information to the UE4 through RRC signaling, or may send the multi-user transmission configuration information to the UE4 through the DCI, or may send the multi-user transmission configuration information to the RRC signaling. UE4, and indicates the multi-user transmission configuration information used by the UE4 through the DCI, for example, the multi-user transmission configuration information used by the bit field in the DCI.

In this example, when the UE4 performs data transmission and reception detection, the UE first receives the multi-user transmission configuration information sent by the base station, and then acquires multiple users corresponding to the RB groups (RB1, RB2), (RB3, RB4), and (RB5, RB6) respectively. Transmitting the configuration information, detecting the data of the superimposed transmission terminal according to the corresponding multi-user transmission configuration information, performing interference cancellation according to a detection technology (for example, SIC technology), and then detecting data sent by the base station to the UE4, and finally acquiring data sent by the base station.

In this example, the multi-user transmission configuration information that is determined by the base station and sent to the UE4 corresponds to multiple resource block groups in the frequency domain, and corresponds to one subframe in the time domain. The multi-user transmission configuration information may also correspond to multiple resource blocks in the frequency domain, such as service requirements or service characteristics or service types, resource granularity or resource allocation, and implementation schemes of multi-user overlay transmission. Or corresponds to the entire transmission bandwidth.

In this example, UE1, UE2, and UE3 may also be terminals for packet service transmission using a low rate fixed MCS.

Application example two

As shown in Figure 7, the base station will have multiple ends with different service requirements, service features or service types. The data of the terminal is superimposed and transmitted on the specified time-frequency resource; wherein the data of the terminal UE4 is a large FTP service of the data packet, and adopts a mode of layer 2 data transmission; the terminals UE1, UE2, UE3, UE5, UE6, UE7 The data is a VoIP service with a small packet, and is transmitted at a low rate of fixed MCS;

In this example, the base station superimposes the data of the UE1 on the first transport layer of the UE4 and the resource blocks RB1 and RB2, and superimposes the data of the UE2 on the first transport layer of the UE4 and the resource blocks RB3 and RB4, in the UE4. The first transport layer and the resource blocks RB5 and RB6 are superimposed and transmitted with the data of the UE3, and the data of the UE5 is superimposed and transmitted on the second transport layer of the UE4 and the resource blocks RB1 and RB2, and the second transport layer and the resource block of the UE4. The data of the UE6 is superimposed and transmitted on the RB3 and the RB4, and the data of the UE7 is superimposed and transmitted on the second transmission layer of the UE4 and the resource blocks RB5 and RB6.

And the base station determines the multi-user transmission configuration information corresponding to the specified time-frequency resource, and sends the configuration information to the terminal UE4. As shown in FIG. 7, the base station determines multi-user transmission configuration information corresponding to the specified time-frequency resource, and the multi-user transmission configuration information The configuration information including the UE1, the UE2, the UE3, the UE5, the UE6, and the UE7 and the UE4 performing the superimposed transmission on the RB group (RB1, RB2), (RB3, RB4), (RB5, RB6), and the configuration information includes the superimposed transmission. Downlink power allocation information (ie, PA1, PA2, PA3, PA5, PA6, PA7) and transport layer indication information (ie, L1, L2, L3, L5, L6, L7) of the terminal UE1, UE2, UE3, UE5, UE6, and UE7 );

The downlink power allocation information of the terminal that is superimposed and transmitted may be a power allocation ratio between terminals that are superimposed and transmitted, or an indication of a power allocation ratio between terminals that are superimposed and transmitted, or a power of the terminal that is superimposed and transmitted is relative to the pre- The power allocation ratio of the reference reference is either a power allocation parameter of the terminal for superimposing transmission or an indication of a power allocation parameter of the terminal for superimposing transmission.

The transport layer indication information includes multi-user transport layer information, which is used to indicate which transport layer performs multi-user overlay transmission.

In this example, the base station may send the multi-user transmission configuration information to the UE4 through RRC signaling, or may send the multi-user transmission configuration information to the UE4 through the DCI, or may send the multi-user transmission configuration information to the RRC signaling. UE4, and indicates the multi-user transmission configuration information used by UE4 through DCI.

In this example, when the UE4 performs data transmission and reception detection, the UE first receives the multi-user transmission configuration information sent by the base station, and then acquires multiple users corresponding to the RB groups (RB1, RB2), (RB3, RB4), and (RB5, RB6) respectively. Transmitting configuration information, detecting data of the superimposed transmission terminal on each transport layer according to the corresponding multi-user transmission configuration information, performing interference cancellation according to a detection technology (for example, SIC technology), and then detecting data sent by the base station to the UE4, and finally acquiring Data sent to the base station.

In this example, the configuration information included in the multi-user transmission configuration information may also be in other forms, for example, UE1, UE2, UE3, and UE4 perform uplink transmission on the first transmission layer, and UE5, UE6, UE7, and UE4 are in the second. The transport layer performs the superimposed transmission. Then, the multi-user transport layer information included in the transport layer indication information may uniformly indicate that the first transport layer performs multi-user overlay transmission through the same indication information, and uniformly indicate by using the same indication information. The second transport layer performs multi-user overlay transmission, or implicitly indicates (eg, power allocation information) which transport layer performs multi-user overlay transmission, and the multi-user transmission configuration information may not include the transport layer indication. Information; in addition, power allocation information for terminals with the same power allocation can also be uniformly indicated by the same power allocation information.

Application example three

As shown in FIG. 8, the base station performs superimposed transmission of data of a plurality of terminals having different service requirements, service features, or service types on a specified time-frequency resource; wherein, the data of the terminals UE1, UE2, and UE3 are smaller. FTP service, and adopts low-rate MCS transmission, and the data of the terminal UE4 is a FTP service with a large data packet;

In this example, the base station superimposes the data of the UE1 and the UE4 on the resource blocks RB1 to RB6, superimposes the data of the UE2 and the UE4 on the resource blocks RB7 to RB12, and superimposes the data of the UE3 and the UE4 on the resource blocks RB13 to RB18.

And the base station determines the multi-user transmission configuration information corresponding to the specified time-frequency resource, and sends the configuration information to the user terminal UE4. As shown in FIG. 8, the base station determines multi-user transmission configuration information corresponding to the specified time-frequency resource, and the multi-user transmission configuration The information includes configuration information that UE1, UE2, and UE3 perform superimposed transmission with UE4 on RB groups RB1 to RB6, RB7 to RB12, and RB13 to RB18, respectively. The information includes the downlink power allocation information (ie, PA1, PA2, PA3) and the modulation and coding mode MCS information (ie, MCS1, MCS2, and MCS3) of the terminals UE1, UE2, and UE3 that are superimposed and transmitted;

The modulation and coding mode MCS information may be an MCS level, and the MCS gradation value indicates which modulation coding mode is adopted by the terminal for superimposed transmission.

In this example, according to the system preset rule, the UE1, UE2, and UE3 that perform small-data packet FTP service transmission and the UE4 that performs large-data packet FTP service transmission are superimposed and transmitted at the first transport layer, and therefore, the multi-user transmits configuration information. There is no need to carry the transport layer indication information of the terminal that is superimposed and transmitted.

In this example, when performing the data transmission and reception detection, the UE4 first receives the multi-user transmission configuration information sent by the base station, and then acquires the multi-user transmission configuration information corresponding to the RB groups RB1 to RB6, RB7-RB12, and RB13-RB18, respectively, according to the corresponding The multi-user transmission configuration information detects the data of the superimposed transmission terminal and performs interference cancellation according to a detection technology (for example, SIC technology), and then detects data transmitted by the base station to the UE4, and finally acquires data transmitted by the base station.

Application example four

As shown in FIG. 9, the base station performs superimposed transmission of data of a plurality of terminals having different service requirements, service features, or service types on the specified time-frequency resources; wherein, data of the terminals UE1, UE2, UE3, UE5, UE6, and UE7 Smaller VoIP traffic for packets, and fixed at a low rate MCS transmission; the data of the terminal UE4 and UE8 is a FTP service with a large data packet;

The VoIP service terminal UE1, UE2, and UE3 are transmitted on the subframe subframe1 according to the semi-persistent scheduling, and the UE1 and the UE4 are in the resource block RB1, because the VoIP service is semi-persistently scheduled for transmission. Superimposed transmission on RB2, UE2 and UE4 are superimposed and transmitted on resource blocks RB3 and RB4, UE3 and UE4 are superimposed and transmitted on resource blocks RB5 and RB6; VoIP service terminals UE5, UE6 and UE7 are in sub-frame according to semi-persistent scheduling. The subframes 2 are transmitted, and the UE5 and the UE8 perform superimposed transmission on the resource blocks RB1 and RB2, and the UE6 and the UE8 perform superimposed transmission on the resource blocks RB3 and RB4, and the UE7 and the UE8 perform superimposed transmission on the resource blocks RB5 and RB6.

And the base station determines the multi-user transmission configuration information, and sends the configuration information to the terminal UE4 and the UE8. As shown in FIG. 9, the base station determines the multi-user transmission configuration information, where the multi-user transmission configuration information includes UE1, UE2, and UE3 respectively and UE4 in subframe1. Configuration information for superimposed transmission on RB groups (RB1, RB2), (RB3, RB4), (RB5, RB6), and RB groups (RB1, RB2) of UE5, UE6, UE7 and UE8 in subframe2, Configuration information for superimposed transmission on (RB3, RB4), (RB5, RB6), wherein the configuration information includes downlink power allocation information (ie, PA11, PA12, PA13, and PA21, PA21, PA23) and transmission of the terminal that is superimposed and transmitted. Layer indication information (ie, L11, L12, L13, and L21, L22, L23);

The transport layer indication information may include multi-user transport layer information for indicating which transport layer performs multi-user overlay transmission.

In this example, the base station may send the multi-user transmission configuration information to the UE4 or the UE8 through the broadcast signaling, or may send the multi-user transmission configuration information to the UE4 or the UE8 through multicast signaling, or may use RRC signaling. The multi-user transmission configuration information is sent to the UE4 or the UE8, or the multi-user transmission configuration information may be sent to the UE4 or the UE8 through the DCI, or the multi-user transmission configuration information may be sent to the UE4 and the UE8 through the RRC signaling, and the DCI is transmitted through the DCI. Instruct UE4, Multi-user transmission configuration information used by UE8.

In this example, when the UE4 and the UE8 perform data transmission and reception detection, first, the multi-user transmission configuration information sent by the base station is received, and then the RB groups (RB1, RB2), (RB3, RB4), and (RB5) in the corresponding subframe are acquired. , RB6) respectively corresponding multi-user transmission configuration information, detecting data of the superimposed transmission terminal on each transmission layer according to the corresponding multi-user transmission configuration information, performing interference cancellation according to a detection technology (for example, SIC technology), and then detecting the base station The data sent to the UE4 and the UE8 finally acquires the data sent by the base station.

In this example, due to the characteristics of the semi-persistent scheduling transmission of the VoIP service, the multi-user transmission configuration information determined by the base station and sent to the user terminals UE4 and UE8 corresponds to multiple resource block groups in the frequency domain, and may be multi-timed in the time domain. Each of the subframes corresponds to or corresponds to a subframe in one or more radio frames.

In this embodiment, the multi-user superimposed transmission may also be implemented in combination with multi-user MIMO transmission (for example, spatial multiplexing). Then, the multi-user transmission configuration information may further carry information of multi-user MIMO transmission, for example, in the transmission layer indication information. It also includes transmission layer number information for indicating the number of transmission layers of the terminal.

In this example, related to factors such as service requirements or service characteristics or service types of multi-user overlay transmission, and implementation schemes of multi-user overlay transmission, the multi-user transmission configuration information may also carry other information of the terminal that is superimposed and transmitted, for example, modulation. Encoding mode MCS information, spreading code, precoding and other code sequence information or indication information.

Application example five

As shown in FIG. 10, data of a plurality of users having different service requirements, service features, or service types are downlink-overlay transmission on a specified time-frequency resource; wherein data of user terminals UE1, UE2, UE3, UE5, UE6, and UE7 The VoIP service with a small packet size and the fixed MCS transmission at a low rate; the data of the user terminals UE4 and UE8 is a large FTP service with a large data packet.

In this example, the base station predetermines the multi-user transmission configuration information, where the multi-user transmission configuration information includes the RB group (RB1, RB2) of the UE1, the UE2, the UE3 and the UE4 in the subframe1, Configuration information for superimposed transmission on (RB3, RB4), (RB5, RB6), and RB groups (RB1, RB2), (RB3, RB4), (RB5, RB6) of UE5, UE6, and UE7 in subframe2, respectively. Configuration information for superimposing transmission, and the like, wherein the configuration information includes downlink power allocation information (ie, PA11, PA12, PA13, and PA21, PA21, PA23) and transport layer indication information (ie, L11, L12, L13 and L21, L22, L23), etc.;

In this example, the base station performs downlink multi-user superposition transmission according to the preset multi-user transmission configuration information. The base station transmits the data of the FTP service terminal UE4 on the resource blocks RB1 to RB6 in the subframe subframe1 according to the scheduling information, according to the half. The persistent scheduling information transmits data of the VoIP service terminals UE1, UE2, and UE3 on the RB groups (RB1, RB2), (RB3, RB4), (RB5, RB6) in the subframe subframe1, respectively, and transmits the configuration information according to the multi-user. The multi-user transmission configuration information corresponding to the corresponding time-frequency resource is implemented to perform superimposed transmission of the UE1 and the UE4, the UE2, the UE4, the UE3, and the UE4, for example, according to the power allocation information in the multi-user transmission configuration information corresponding to the corresponding time-frequency resource. The signal power of the terminal that is superimposed and transmitted is superimposed and transmitted in the corresponding transmission layer according to the indication information of the transmission layer. Similarly, the base station transmits the data of the FTP service terminal UE8 on the resource blocks RB1 to RB6 in the subframe 2 according to the scheduling information, according to the scheduling information. The semi-persistent scheduling information transmits data of the VoIP service terminals UE5, UE6, and UE7 on the RB groups (RB1, RB2), (RB3, RB4), and (RB5, RB6) in the subframe subframe2, respectively. And, according to multi-user transmission configuration information corresponding to the multi-user transmission time-frequency resource configuration information corresponding to the UE8 embodiment UE5, and UE6 and UE8, UE7 and UE8 the superimposed transmission.

In this example, the base station also sends the predetermined multi-user transmission configuration information to the terminal UE4 and the UE8. For example, the multi-user transmission configuration information may be sent to the UE4 or the UE8 through broadcast signaling, or may be through multicast signaling. Multi-user transmission configuration information is sent to UE4, UE8, or The multi-user transmission configuration information may be sent to the UE4 or the UE8 through RRC signaling, or the multi-user transmission configuration information may be sent to the UE4 or the UE8 through the DCI, or the multi-user transmission configuration information may be sent to the UE4 through RRC signaling. The UE8, and indicates the multi-user transmission configuration information used by the UE4 and the UE8 through the DCI.

In this example, the UE4 and the UE8 receive the multi-user transmission configuration information sent by the base station, and when performing the data transmission and reception detection, first acquire the RB groups (RB1, RB2), (RB3, RB4), and (RB5) in the corresponding subframe. RB6) respectively corresponding multi-user transmission configuration information, and then detecting data of the superimposed transmission terminal on each transmission layer according to the corresponding multi-user transmission configuration information and performing interference cancellation according to a detection technology (for example, SIC technology), and then detecting the base station The data sent to the UE4 and the UE8 finally acquires the data sent by the base station.

In this example, due to the characteristics of the semi-persistent scheduling transmission of the VoIP service, the multi-user transmission configuration information that is determined by the base station and sent to the user terminals UE4 and UE8 respectively corresponds to multiple resource block groups in the frequency domain, and may be in the time domain. Corresponding to a plurality of subframes respectively or corresponding to subframes in one or more radio frames.

In this example, related to factors such as service requirements or service characteristics or service types, resource granularity or resource allocation, and implementation scheme of multi-user overlay transmission, the base station predetermines and transmits the multi-user transmission configuration information to the user terminal. The frequency domain may also correspond to multiple resource blocks, or correspond to the entire transmission bandwidth, and may also correspond to one subframe or multiple subframe groups in the time domain.

In this example, related to the service requirement of the multi-user overlay transmission, the service feature or the service type, the implementation scheme of the multi-user overlay transmission, and the like, the multi-user transmission configuration information that is determined by the base station and sent to the user terminal may also carry the overlay transmission. Other information of the terminal, for example, modulation coding mode MCS information, spreading code, precoding, etc., code information or indication information, and the like.

In this example, when the terminal does not receive the multi-user transmission configuration information sent by the base station, the data transmission processing may be performed according to the system preset rule; for example, the terminal receives the multi-purpose received last time. The user transmits configuration information for data transmission reception detection. For example, it is assumed that the multi-user transmission configuration information that the base station predetermines and transmits to the terminal corresponds to one or more resource blocks or resource block groups in the frequency domain, and two in the time domain. The subframe in the radio frame (20ms) corresponds to, when the terminal does not receive the updated multi-user transmission configuration information at the time of the multi-user transmission configuration information update, the terminal acquires and specifies the time-frequency according to the last received multi-user transmission configuration information. The multi-user corresponding to the resource transmits the configuration information, and performs data reception according to the obtained information; or the terminal processes the non-multi-user superimposed transmission, for example, the terminal performs single-user data transmission processing according to the currently received system scheduling information; Alternatively, the terminal performs data transmission and reception detection according to the last received multi-user transmission configuration information within a preset time or period of the system, and processes the non-multi-user superimposed transmission condition outside the system preset time or period range.

Application example six

The data transmission method provided by this example is used for uplink multi-user overlay transmission.

As shown in FIG. 11 , data of a plurality of terminals having different service requirements, service features, or service types are uplink and superimposed on a specified time-frequency resource. The data of the terminals UE1, UE2, UE3, UE5, UE6, and UE7 are The data packet has a small VoIP service, and is transmitted at a low rate of fixed MCS; the data of the user terminals UE4 and UE8 is a large FTP service with a large data packet.

In this example, the base station predetermines the multi-user transmission configuration information, where the multi-user transmission configuration information includes the RB groups (RB1, RB2), (RB3, RB4), and (RB5) of the UE1, UE2, and UE3 in the subframe1, respectively. Configuration information for superimposed transmission on RB6), and configuration information for superimposing transmission of UE5, UE6, and UE7 with RB groups (RB1, RB2), (RB3, RB4), (RB5, RB6) of UE8 in subframe2, respectively, And the like, wherein the configuration information includes power control (PC) information of the terminal (ie, PC11, PC12, PC13, and PC21, PC21, PC23) and transport layer indication information (ie, L11, L12, L13, and L21, L22, L23), etc.;

The power control information of the terminal that is superimposed and transmitted may be a power control parameter of the terminal that is superimposed and transmitted, or an indication of a power control parameter of the terminal that is superimposed and transmitted, or a power adjustment parameter of the terminal that is superimposed and transmitted, such as transmission power control ( Transmit Power Control (TPC) command, system preset power adjustment step size, etc., or power adjustment of the terminal for superimposed transmission The indication of the number.

The transport layer indication information may include multi-user transport layer information, which is used to indicate which transport layer of the terminal performs uplink overlay transmission.

In this example, the base station sends the predetermined multi-user transmission configuration information to the terminal UE1, UE2, UE3, UE5, UE6, and UE7. For example, the multi-user transmission configuration information may be sent to the terminal through broadcast signaling, or may pass The multicast signaling sends the multi-user transmission configuration information to the terminal, or the multi-user transmission configuration information may be sent to the terminal through RRC signaling, or the multi-user transmission configuration information may be sent to the terminal through the DCI, or may pass The RRC signaling transmits the multi-user transmission configuration information to the terminal, and instructs the multi-user transmission configuration information used by the terminal through the DCI.

In this example, the UEs UE1, UE2, UE3, UE5, UE6, and UE7 receive the multi-user transmission configuration information sent by the base station, and perform uplink superposition transmission; wherein the FTP service terminal UE4 is in the resource block RB1 in the subframe subframe1 according to its scheduling information. The uplink transmission is performed on the RB6, and the VoIP service terminals UE1, UE2, and UE3 perform uplink transmission on the RB groups (RB1, RB2), (RB3, RB4), (RB5, RB6) in the subframe subframe1 according to the semi-persistent scheduling information. And the UE1, the UE2, and the UE3 implement uplink uplink transmission with the UE4 according to the multi-user transmission configuration information corresponding to the corresponding time-frequency resource acquired from the received multi-user transmission configuration information, for example, UE1, UE2, and UE3 are configured according to The obtained power control information in the multi-user transmission configuration information is set or adjusted, and the uplink transmission power is adjusted, and the uplink transmission is performed at the corresponding transmission layer according to the transmission layer indication information; likewise, the FTP service terminal UE8 is in the subframe subframe2 according to the scheduling information thereof. The uplink resource transmission is performed on the resource blocks RB1 to RB6, and the VoIP service terminals UE5, UE6, and UE7 respectively correspond to the RB group (RB1, RB2) in the subframe subframe2 according to the semi-persistent scheduling information. Uplink transmission is performed on RB3, RB4), (RB5, RB6), and the UE5, the UE6, and the UE7 are implemented according to the multi-user transmission configuration information corresponding to the corresponding time-frequency resource acquired from the received multi-user transmission configuration information. Uplink overlay transmission of UE8.

In this example, when the base station performs data transmission and reception detection, the data transmitted by the terminal UE4 and the UE8 may be detected, and then, according to the multi-user transmission configuration information corresponding to the specified time-frequency resource in the multi-user transmission configuration information, and the detection technology is adopted ( For example, the SIC technology detects the data transmitted by the terminals UE1, UE2, UE3, UE5, UE6, and UE7 that are superimposed and transmitted; finally, the base station acquires the data sent by each user terminal.

In this example, due to the characteristics of the semi-persistent scheduling transmission of the VoIP service, the multi-user transmission configuration information that is determined by the base station and sent to the user terminal respectively corresponds to multiple resource block groups in the frequency domain, and may be associated with multiple sub-groups in the time domain. The frames respectively correspond to or correspond to subframes in one or more radio frames.

In this example, related to the service requirement of the multi-user overlay transmission, the service feature or the service type, the implementation scheme of the multi-user overlay transmission, and the like, the multi-user transmission configuration information that is determined by the base station and sent to the terminal may also carry the overlay transmission. Other information of the terminal, for example, information of a code sequence such as a spreading code, precoding, or the like.

In this example, when the terminal does not receive the multi-user transmission configuration information sent by the base station, the data transmission processing may be performed according to the system preset rule; for example, the terminal performs data transmission according to the last received multi-user transmission configuration information, for example, Assuming that the multi-user transmission configuration information that is determined by the base station and sent to the terminal corresponds to one or more resource blocks or resource block groups in the frequency domain, and corresponds to subframes in two radio frames (20 ms) in the time domain, When the terminal does not receive the updated multi-user transmission configuration information at the time of the multi-user transmission configuration information update, the terminal acquires the multi-user transmission configuration information corresponding to the specified time-frequency resource according to the last received multi-user transmission configuration information, and according to Obtaining the information for data transmission; or, the terminal processes according to the non-multi-user superimposed transmission situation, for example, the terminal performs data transmission according to the currently received system scheduling information; or, the terminal follows the preset time or period of the system. Multi-user transmission configuration information received at one time for data transmission, in the system pre- Set the time or period outside the range according to the non-multi-user overlay transmission.

Application example seven

As shown in FIG. 12, data of multiple terminals performs uplink superposition transmission on a specified time-frequency resource; The data of the terminals UE1, UE2, UE3, UE4, UE5, and UE6 are small packet services with small data packets, and are transmitted at a low rate of fixed MCS.

In this example, the UEs UE1, UE2, UE3, UE4, UE5, and UE6 first obtain multi-user transmission configuration information for uplink transmission on a specified resource; for example, each terminal acquires its specified time-frequency resource according to a system preset rule. Multi-user transmission configuration information for uplink transmission, for example, each terminal acquires spreading code sequence information from a preset preset of the system according to its index; and then each terminal uses the obtained spreading code in the specified time-frequency resource. Perform uplink transmission on;

The specified resource for performing uplink transmission by the terminal may be determined according to scheduling information sent by the system, or may be determined according to scheduling information that is fixedly configured by the system;

The spreading code used by each terminal for superimposing transmission may be an orthogonal spreading code, or a non-orthogonal spreading code, or a low correlation spreading code.

In this example, UE1 and UE4 perform superimposed transmission on resource blocks RB1 - RB6, UE2 and UE5 perform superimposed transmission on resource blocks RB7 - RB12, and UE3 and UE6 perform superimposed transmission on resource blocks RB13 - RB18.

In this example, when the base station performs data transmission and reception detection, the multi-user transmission configuration information of the terminal that performs uplink transmission on each of the RB groups RB1 to RB6, RB7 to RB12, and RB13 to RB18 may be acquired first, according to corresponding information and The detection technology (for example, the SIC technology) detects the data sent by each terminal to the base station; or the base station may first acquire the multi-user transmission configuration information of the terminal that may perform the uplink superposition transmission on each RB group, and detect according to the corresponding information. Which terminals are uplinked, and further detects the data transmitted by each terminal to the base station based on the information and, for example, the SIC technology; finally, the base station acquires the data transmitted by each terminal.

In this example, because the spreading code sequence is adopted, more terminals can be supported to perform uplink superimposition transmission on the same resource block, which is related to the length of the spreading code sequence. For example, if the length of the spreading code sequence used is 4, Support 4 or more terminals to perform uplink overlay transmission on the same resource block.

It should be noted that the foregoing implementation examples of the present invention are applicable to downlink multi-user transmission and uplink multi-user transmission, and multi-user transmission associated with downlink multi-user transmission when implemented in an actual system. The configuration information and the content contained in the multi-user transmission configuration information associated with the uplink multi-user transmission may be different, and some implementation steps and sequences of the downlink multi-user transmission and the uplink multi-user transmission may also be different.

It should be noted that the multi-user transmission configuration information and the information contained therein in the foregoing embodiment of the present invention are not limited to the format or format described in the foregoing embodiment, and may be other forms or formats.

Finally, it should be noted that the foregoing implementation examples of the present invention are not only applicable to the service requirements, service features or service types enumerated in the embodiments of the present invention, nor are they applicable to multiple different service requirements, service features or service types. The case where a terminal performs multi-user transmission on a specified time-frequency resource may also be applicable to other service requirements, service characteristics or service types, and other multi-user transmission conditions.

The data transmission device provided by the embodiment of the present invention may be configured in a terminal and/or a base station. As shown in FIG. 13, the method includes: an obtaining module 1301, configured to: acquire multi-user transmission configuration information corresponding to a specified time-frequency resource. The multi-user transmission configuration information corresponding to the specified time-frequency resource includes: configuration information of multiple terminals having different service requirements, service features, or service types for multi-user transmission on the specified time-frequency resource;

The transmitting module 1302 is configured to: perform data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Optionally, the multi-user transmission includes:

Power control information;

Transport layer indication information;

Modulation coding mode information;

Code sequence information.

Optionally, the power control information may include, but is not limited to, any one or any of the following:

The transport layer indication information may include, but is not limited to, including:

Transmit layer information, and/or multi-user transport layer information.

The code sequence information may include, but is not limited to, including:

Spread code information, and/or pre-coded information.

Optionally, the obtaining module 1301 is further configured to: receive the multi-user transmission configuration information before acquiring the multi-user transmission configuration information corresponding to the specified time-frequency resource.

Optionally, the obtaining module 1301 is further configured to: before acquiring the multi-user transmission configuration information corresponding to the specified time-frequency resource, determine the multi-user transmission configuration information.

Correspondingly, the obtaining module 1301 is further configured to: send the multi-user transmission configuration information after determining the multi-user transmission configuration information.

Correspondingly, the obtaining module 1301 is configured to: send the multi-user transmission configuration information to But not limited to including at least one of the following:

The radio resource control RRC signaling includes semi-persistent scheduling configuration signaling.

Optionally, the obtaining module 1301 is configured to:

Optionally, the obtaining module 1301 is configured to: obtain, by the received multi-user transmission configuration information, the multi-user transmission configuration information corresponding to the specified time-frequency resource, but is not limited to include any one or any of the following manners. :

Optionally, the obtaining module 1301 is configured to: obtain, according to the determined multi-user transmission configuration information, multi-user transmission configuration information corresponding to the specified time-frequency resource, but is not limited to include at least one of the following:

Optionally, the transmitting module 1302 is configured to: perform data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, and may include, but is not limited to, at least one of the following:

Optionally, the transmitting module 1302 is configured to: receive data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, including at least one of the following:

Optionally, the transmitting module 1302 is configured to: send data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, and may include, but is not limited to, at least one of the following:

One of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium, such as on a corresponding hardware platform (eg, The system, device, device, device, etc. are executed, and when executed, include one or a combination of the steps of the method embodiments.

Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.

The devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.

When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

Industrial applicability

Through the embodiments of the present invention, multi-user transmission can be implemented in combination with service requirements, service features, or service types of multiple terminals, thereby achieving an effect of effectively improving terminal throughput and system capacity.

Claims

A data transmission method includes:

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource; the multi-user transmission configuration information corresponding to the specified time-frequency resource includes: a plurality of terminals having different service requirements, service features, or service types at the specified time-frequency Configuration information for multi-user transmission on the resource;

And performing data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.
The method of claim 1 wherein said multi-user transmission comprises:

Multi-user overlay transmission, and/or multi-user multiple input multiple output transmission.
The method of claim 1, wherein the multi-user transmission configuration information comprises any one or any of the following:

Multi-user transmission configuration information corresponding to multiple resource blocks respectively;

Multi-user transmission configuration information corresponding to each of the plurality of resource block groups;

Multi-user transmission configuration information corresponding to the entire transmission bandwidth.
The method of claim 1, wherein the multi-user transmission configuration information comprises any one or any of the following:

Multi-user transmission configuration information corresponding to one subframe;

Multi-user transmission configuration information corresponding to each of the plurality of subframes;

Multi-user transmission configuration information corresponding to each of the plurality of subframe groups;

Multi-user transmission configuration information corresponding to one radio frame;

Multi-user transmission configuration information corresponding to each of the plurality of radio frames.
The method of claim 1, wherein the configuration information comprises at least one of the following:

Power control information;

Transport layer indication information;

Modulation coding mode information;

Code sequence information.
The method of claim 5, wherein

The power control information includes any one or any of the following: power allocation ratio information, power allocation parameter information, power control parameter information, and power adjustment parameter information;

The transport layer indication information includes: transport layer number information, and/or multi-user transport layer information;

The code sequence information includes: extended code information, and/or pre-coded information.
The method of claim 1 wherein:

The specified time-frequency resource is a time-frequency resource for performing data transmission determined according to system scheduling information.
The method of claim 1, wherein the obtaining the multi-user transmission configuration information corresponding to the specified time-frequency resource further comprises:

Receiving multi-user transmission configuration information, and/or,

Determine multi-user transmission configuration information.
The method of claim 8, wherein the determining the multi-user transmission configuration information further comprises:

Sending the multi-user transmission configuration information.
The method of claim 9, wherein said transmitting said multi-user transmission configuration information comprises at least one of:

Transmitting the multi-user transmission configuration information by using broadcast signaling;

Transmitting the multi-user transmission configuration information by using multicast signaling;

Transmitting the multi-user transmission configuration information by using radio resource control RRC signaling;

The multi-user transmission configuration information is transmitted through downlink control information DCI.
The method of claim 10 wherein said radio resource control RRC signaling comprises semi-persistent scheduling configuration signaling.
The method of claim 1, wherein the obtaining the multi-user transmission configuration information corresponding to the specified time-frequency resource comprises:

Obtaining multi-user transmission corresponding to the specified time-frequency resource from the received multi-user transmission configuration information Transmitting configuration information; and/or,

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the determined multi-user transmission configuration information.
The method of claim 12, wherein

The acquiring the multi-user transmission configuration information corresponding to the specified time-frequency resource from the received multi-user transmission configuration information includes any one of the following methods:

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received broadcast signaling;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received multicast signaling;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received RRC signaling;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received DCI signaling;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the multi-user transmission configuration information carried in the received RRC signaling and the multi-user transmission configuration indication information carried in the received DCI signaling;

The obtaining, by the determined multi-user transmission configuration information, the multi-user transmission configuration information corresponding to the specified time-frequency resource includes at least one of the following:

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the determined multi-user transmission configuration information according to the system scheduling information;

Obtaining multi-user transmission configuration information corresponding to the specified time-frequency resource from the determined multi-user transmission configuration information according to the system preset rule.
The method according to any one of claims 1 to 13, wherein the data transmission is performed on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, including at least the following One:

And according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, at the specified time Receiving data on the source;

And transmitting data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.
The method of claim 14, wherein the receiving data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource comprises at least one of the following:

Receiving data sent by the base station on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource;

And receiving, according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, data sent by a plurality of terminals having different service requirements, service features, or service types on the specified time-frequency resource.
The method of claim 14, wherein the transmitting data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource comprises at least one of the following:

And superimposing data of multiple terminals having different service requirements, service features, or service types on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, and transmitting the data;

And performing, according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, spatially multiplexing data of multiple terminals having different service requirements, service features, or service types on the specified time-frequency resource, and then transmitting the data;

And performing spatial multiplexing on the specified time-frequency resource on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource, and then sending the data to be sent;

And sending the to-be-sent data on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.
A data transmission device comprising:

The acquiring module is configured to: obtain multi-user transmission configuration information corresponding to the specified time-frequency resource; and the multi-user transmission configuration information corresponding to the specified time-frequency resource includes: multiple terminals having different service requirements, service features, or service types Configuring configuration information for multi-user transmission on the specified time-frequency resource;

The transmission module is configured to: perform data transmission on the specified time-frequency resource according to the multi-user transmission configuration information corresponding to the specified time-frequency resource.
A computer readable storage medium storing computer executable instructions for performing the method of any of claims 1-16.