CN105790908B - Data transmission, data processing method and device - Google Patents

Abstract

The invention discloses a kind of transmission of data, data processing method and devices, wherein, which includes: reception scheduling message, wherein, the resource block RB resource information for data transmission is carried in the scheduling message, the corresponding RB resource of the RB resource information is continuous；The RB resource for being used for transmission data is determined according to the RB resource information and the currently available RB resource being previously received；Carried out data transmission according to the determining RB resource.Through the invention, solve the problems, such as that the existing resource utilization of data transmission is low in the related technology, is flexibly utilized by the effect that RB resource carries out data transmission to realize.

Description

Data transmission, data processing method and device

technical field

The present invention relates to the communication field, in particular, to a data transmission and data processing method and device.

Background technique

In the uplink of the Long Term Evolution (referred to as LTE) system, the transmission mode of the Physical Uplink Shared Channel (referred to as PUSCH) adopts Orthogonal Frequency Division Multiple Access, Abbreviated as OFDMA) technology.

Before LTE R10, on PUSCH, each user uses a continuous time-frequency domain resource (Resource Element, RE for short) allocated by the system as its own frequency band for data transmission and pilot transmission. The time-domain index of the RE is a symbol index, and the frequency-domain index is a subcarrier index, and data and pilots occupy symbols with different indexes and subcarriers with the same index. The discontinuous RB allocation mode is introduced in the LTE R10 version. In the R10 protocol, a segment of continuous RBs is called a cluster (cluster), and usually multiple clusters are supported in the discontinuous RB allocation mode. A single component carrier (ComponentCarriers, CC for short) supports 2 clusters. Under carrier aggregation, n CCs support a maximum of 2n clusters. The size and location of the cluster are sent to the corresponding UE through the downlink channel by the corresponding scheduling control information, and the minimum resource block (Resource Block, RB for short) number of a cluster is related to the bandwidth.

In related technologies, the frequency-domain REs occupied by the PUSCH pilot are the same as the frequency-domain REs occupied by the data. On a given time-frequency domain resource, for the coded data, each antenna port performs RE mapping and SC-FDMA respectively. Signal generation to realize the process of transmitting data. The specific transmission process is described in detail in 3GPP TS 36.211V10.1.0. FIG. 1 is a schematic diagram of the transmission processing of the LTE uplink physical channel in the related art, as shown in FIG. 1 .

In related technologies, on a single CC, PUSCH must be sent on one or two consecutive RB segments. The total number of idle RBs can meet the transmission bandwidth requirements, but the maximum number of idle consecutive RB segments at both ends does not meet the number of RBs required by the terminal. In the scenario, the existing technology cannot directly schedule and transmit the data, that is, it cannot maximize the use of idle system resources.

Aiming at the problem of low resource utilization in data transmission in related technologies, no effective solution has been proposed so far.

Contents of the invention

The present invention provides a data transmission and data processing method and device to at least solve the problem of low resource utilization in data transmission in the related art.

According to one aspect of the present invention, a data transmission method is provided, including: receiving a scheduling message, wherein the scheduling message carries resource block RB resource information for data transmission, and the RB resource corresponding to the RB resource information is Continuous: determine the RB resources used for data transmission according to the RB resource information and the currently available RB resources received in advance; perform data transmission according to the determined RB resources.

Further, determining the RB resources used to transmit data according to the RB resource information and the currently available RB resources received in advance includes: performing resource mapping on the currently available RB resources received in advance according to the RB resource information and determining to be used for transmission RB resources for data, wherein the resource mapping is to map connected RB resources to the currently available RB resources.

Further, performing resource mapping on currently available RB resources received in advance according to the RB resource information and determining the RB resources used to transmit data includes: mapping the coded data to the allocated RB resources corresponding to the RB resource information RB resource location: performing secondary mapping of each data in the RB resource corresponding to the RB resource information to the RB resource location allocated in the currently available RB resource to determine the RB resource used for data transmission.

Further, before receiving the scheduling message, the method further includes: receiving currently available RB resources sent by the base station; and feeding back a feedback message of successful reception to the base station.

According to another aspect of the present invention, a data processing method is provided, including: sending a scheduling message to a terminal, wherein the scheduling message carries RB resource information for data transmission, and the RB resource information corresponding to the RB resource It is continuous; receiving the data transmitted by the RB resources used to transmit data determined by the terminal according to the RB resource information and the currently available RB resources received in advance.

According to another aspect of the present invention, a data transmission device is provided, including: a first receiving module, configured to receive a scheduling message, wherein the scheduling message carries resource block RB resource information for data transmission, the The RB resources corresponding to the RB resource information are continuous; the determination module is configured to determine the RB resources used to transmit data according to the RB resource information and the currently available RB resources received in advance; the data transmission module is configured to determine the RB resources according to the determined The above RB resources are used for data transmission.

Further, the determining module includes: a determining submodule, configured to perform resource mapping on currently available RB resources received in advance according to the RB resource information to determine RB resources used for data transmission, wherein the resource mapping is to Continuous RB resources are mapped to the currently available RB resources.

Further, the determining submodule includes: a mapping unit, configured to map the coded data to the RB resource position allocated in the RB resource corresponding to the RB resource information; a determining unit, configured to map the RB resource information to Each data in the RB resource is mapped twice to the RB resource position allocated in the currently available RB resource to determine the RB resource used for data transmission.

Further, the device further includes: a second receiving module, configured to receive currently available RB resources sent by the base station; a feedback module, configured to feed back a feedback message of successful reception to the base station.

According to another aspect of the present invention, a data processing device is provided, including: a sending module, configured to send a scheduling message to a terminal, wherein the scheduling message carries RB resource information for data transmission, and the RB resource The RB resources corresponding to the information are continuous; the third receiving module is configured to receive the data transmitted by the RB resources for data transmission determined by the terminal according to the RB resource information and the currently available RB resources received in advance.

According to the present invention, the receiving scheduling message is adopted, wherein the scheduling message carries resource block RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous; according to the RB resource information and pre-received Determine the RB resources used to transmit data based on the currently available RB resources; perform data transmission according to the determined RB resources, which solves the problem of low resource utilization in data transmission in related technologies, thereby realizing flexible use of RB resources The effect of data transfer.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of an LTE uplink physical channel transmission process according to the related art;

2 is a flowchart of a data transmission method according to an embodiment of the present invention;

Fig. 3 is a flowchart of a data processing method according to an embodiment of the present invention;

4 is a block diagram of a data transmission device according to an embodiment of the present invention;

FIG. 5 is a first block diagram of a data transmission device according to a preferred embodiment of the present invention;

FIG. 6 is a second block diagram of a data transmission device according to a preferred embodiment of the present invention;

FIG. 7 is a third block diagram of a data transmission device according to a preferred embodiment of the present invention;

8 is a block diagram of a data processing device according to an embodiment of the present invention;

Fig. 9 is a schematic diagram of an uplink physical channel transmission process according to an embodiment of the present invention.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

A data transmission method is provided in this embodiment. FIG. 2 is a flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202, receiving a scheduling message, wherein the scheduling message carries resource block RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous;

Step S204, determining the RB resources used for data transmission according to the RB resource information and the currently available RB resources received in advance;

Step S206, performing data transmission according to the determined RB resource.

Through the above steps, a scheduling message is received, wherein the scheduling message carries resource block RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous; according to the RB resource information and the pre-received currently available The RB resources determine the RB resources used to transmit data; data transmission is performed according to the determined RB resources, since when determining the RB resources used for transmission, a continuous RB resource is determined according to the RB resource information, so the available RB In the case of discontinuous resources, the available RB resources can be scheduled without modifying the existing protocol, which solves the problem of low resource utilization in data transmission in related technologies, thereby realizing the flexible use of RB resources for data transmission. transmission effect.

Determining the RB resources used to transmit data according to the RB resource information and the currently available RB resources received in advance may include: performing resource mapping on the currently available RB resources received in advance according to the RB resource information to determine the RB resources used to transmit data , where the resource mapping is mapping continuous RB resources to currently available RB resources.

Performing resource mapping on currently available RB resources received in advance according to the RB resource information and determining the RB resources used to transmit data may include: mapping the coded data to the RB resource positions allocated in the RB resources corresponding to the RB resource information and performing secondary mapping of each data in the RB resources corresponding to the RB resource information to the RB resource positions allocated in the currently available RB resources to determine the RB resources used for data transmission.

Before receiving the scheduling message, it is also possible to receive the currently available RB resources sent by the base station; feed back the feedback message of successful reception to the base station, and the terminal and the base station will realize the interaction through messages so that both parties know the currently available RB resources.

The embodiment of the present invention also provides a data processing method. FIG. 3 is a flow chart of the data processing method according to the embodiment of the present invention. As shown in FIG. 3 , the process includes the following steps:

Step S302, sending a scheduling message to the terminal, wherein the scheduling message carries RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous;

Step S304, receiving the data transmitted by the RB resources used to transmit data determined by the terminal according to the RB resource information and the currently available RB resources received in advance.

Through the above steps, a scheduling message is sent to the terminal, wherein the scheduling message carries RB resource information used for data transmission, and the RB resources corresponding to the RB resource information are continuous, and the receiving terminal according to the RB resource information and the pre-received The currently available RB resources determine the data transmitted by the RB resources used to transmit data, which solves the problem of low resource utilization in data transmission in the related art, thereby realizing the effect of flexibly using RB resources for data transmission.

An embodiment of the present invention provides a data transmission device, which is used to implement the above embodiments and preferred implementation modes, and what has been described will not be repeated here. As used below, the term "module" may be a combination of software and/or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

FIG. 4 is a block diagram of a data transmission device according to an embodiment of the present invention. As shown in FIG. 4 , it includes steps: a first receiving module 42 , a determination module 44 and a data transmission module 46 . Each module will be briefly described below.

The first receiving module 42 is configured to receive a scheduling message, where the scheduling message carries resource block RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous;

A determining module 44, configured to determine the RB resources used to transmit data according to the RB resource information and the currently available RB resources received in advance;

The data transmission module 46 is configured to perform data transmission according to the determined RB resource.

Fig. 5 is a block diagram one of a data transmission device according to a preferred embodiment of the present invention. As shown in Fig. 5, the determining module 44 includes:

The determining submodule 52 is configured to perform resource mapping on currently available RB resources received in advance according to the RB resource information to determine RB resources used for data transmission, where the resource mapping is to map connected RB resources to currently available RB resources .

Fig. 6 is a block diagram two of a data transmission device according to a preferred embodiment of the present invention. As shown in Fig. 6, the determining submodule 52 includes:

A mapping unit 62, configured to map the encoded data to the RB resource position allocated in the RB resource corresponding to the RB resource information;

The determining unit 64 is configured to re-map each data in the RB resource corresponding to the RB resource information to the RB resource position allocated in the currently available RB resource and determine the RB resource used for data transmission.

Fig. 7 is a block diagram three of a data transmission device according to a preferred embodiment of the present invention. As shown in Fig. 7, the device also includes:

The second receiving module 72 is used for currently available RB resources sent by the base station;

The feedback module 74 is configured to feed back a feedback message of successful reception to the base station.

The embodiment of the present invention also provides a data processing device. FIG. 8 is a block diagram of a data processing device according to an embodiment of the present invention. As shown in FIG. 8 , it includes: a sending module 82 and a third receiving module 84, and each A brief description of the module.

The sending module 82 is configured to send a scheduling message to the terminal, where the scheduling message carries RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous;

The third receiving module 84 is configured to receive the data transmitted by the RB resources used for data transmission determined by the terminal according to the RB resource information and the currently available RB resources received in advance.

The embodiments of the present invention will be further described below in conjunction with optional embodiments.

An optional embodiment of the present invention provides a method for transmitting uplink data. FIG. 9 is a schematic diagram of an uplink physical channel transmission process according to an embodiment of the present invention. As shown in FIG. 9 , it includes: the base station informs the terminal that the current system is available through the downlink channel RB resource index set, and the terminal correctly parses the information and feeds it back to the base station. The upper layer allocates scheduling information (including RB resources) for data transmission to the terminal. The terminal performs data encoding on the data to be sent according to the scheduling information allocated by the upper layer. The encoded data is subjected to RE mapping, secondary RE mapping and SC-FDMA signal generation according to the antenna port, wherein the secondary RE mapping is equivalent to the secondary mapping pointed out in the embodiment of the present invention.

In this embodiment, in the scheduling information allocated by the upper layer to the terminal for data transmission, the RB indexes are all corresponding indexes in the available RB resource index set. The RE mapping is to map the coded data to the RB resource position allocated to the terminal in the available RB resource set. The secondary RE mapping is to map the data of each RB in the available RB resource set to the corresponding position of the RB resource of the system.

This optional embodiment provides an uplink data transmission device, including: an available RB resource acquisition module, a scheduling message acquisition module, a data encoding module, a secondary RE mapping module, and an SC-FDMA signal generation module. The functions are realized by part or all of the first receiving module 42 , the determining module 44 , the data transmission module 46 , the sending module 82 and the third receiving module 84 in the embodiment of the present invention.

In the available RB resource acquisition module, the terminal obtains the information of the available RB resource set sent by the base station by analyzing the data sent from the downlink channel.

The scheduling message acquisition module obtains the RB resources and other scheduling parameters allocated to the terminal sent by the base station for data transmission by analyzing the data sent by the downlink channel.

The data encoding module is used for encoding the transmitted data. The RE mapping module is configured to map the coded data to the RB resource position allocated to the terminal in the available RB resource set.

The secondary RE mapping module is used to map the data on the RB resource assigned to the terminal to the corresponding position of the RB resource of the system.

The SC-FDMA signal generation module is used to generate IQ data from the RB data of the system.

Through this optional embodiment, the PUSCH can more flexibly transmit data on the RB, which solves the problem of low RB resource utilization of the PUSCH in the related art.

Embodiment one

This preferred embodiment is described by taking an LTE system applying the method and device for transmitting uplink data proposed by the present invention as an example.

Assume that the configured system bandwidth of the system is 5MHz, and there are 25 RBs (each RB has a corresponding index, the minimum value is 0, and the maximum value is 24) for data transmission. In a downlink data transmission, the base station notifies the terminal of the available RB resource index set through the downlink channel, which is recorded as Valid_RBset={0,1,2,3,4,5,6,7,8,9,15,16,17 ,18,20,21,22,23,24}, indicating that in the system RB, all indexes in Valid_RBset are available, otherwise they are not available. The index of each value in Valid_RBset is recorded as Valid_RBsetIdx={0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18} . Wherein, the value in Valid_RBset indicates that the system RB corresponding to the index can be used for data transmission, otherwise it cannot be used for data transmission. After the Valid_RBset takes effect, all transmission processes of the terminal will perform secondary RE mapping according to the Valid_RBset.

After the Valid_RBset takes effect, in a downlink data transmission, the base station notifies the terminal through the downlink channel of the scheduling message for uplink data transmission on the PUSCH, in which the RB index is the value in Valid_RBsetIdx, where the RB start position is 5, The number of RBs is 10, then the value in Valid_RBsetIdx corresponding to the RB resources allocated to the terminal is S1={5,6,7,8,9,10,11,12,13,14}, the value in the corresponding Valid_RBset It is S2={5, 6, 7, 8, 9, 15, 16, 17, 18, 20}.

When the encoded data is used for RE mapping, the encoded data needs to be mapped to the subset S1 of the Valid_RBsetIdx set. For secondary RE mapping, it is necessary to map the corresponding data in S1 to the corresponding position of Valid_RBset, that is, S2.

The two processes of data encoding and SC-FDMA signal generation are consistent with existing LTE solutions.

Embodiment two

This optional embodiment is described by taking an LTE system applying the method and device for transmitting uplink data proposed by the present invention as an example.

Assume that the configured system bandwidth of the system is 5MHz, and there are 25 RBs (each RB has a corresponding index, the minimum value is 0, and the maximum value is 24) for data transmission. In a downlink data transmission, the base station notifies the terminal of the available RB resource index through the downlink channel, which is recorded as Valid_RBset={2,3,4,5,6,9,15,16,17,18,20,21,22, 23,24}, indicating that in the system RB, the indexes in Valid_RBset are all available, otherwise they are not available. The index of each value in Valid_RBset is written as Valid_RBsetIdx={0,1,2,3,4,5,6,7,8,9,10,11,12,13,14}. Wherein, the value in Valid_RBset indicates that the system RB corresponding to the index can be used for data transmission, otherwise it cannot be used for data transmission. After the Valid_RBset takes effect, all transmission processes of the terminal will perform secondary RE mapping according to the Valid_RBset.

After the Valid_RBset takes effect, in a downlink data transmission, the base station notifies the terminal through the downlink channel of the scheduling message for uplink data transmission on the PUSCH, in which the RB index is the value in Valid_RBsetIdx, where the RB resources are on two clusters , the starting position of the RB corresponding to the first cluster is 2, the number of RBs is 4, the starting position of the RB resources corresponding to the second cluster is 8, and the number of RBs is 6, then the terminal is allocated to the Valid_RBsetIdx corresponding to the RB resources The value of is S1={2,3,4,5,8,9,10,11,12,13}, and the corresponding value in Valid_RBset is S2={4,5,6,9,17,18,20 ,21,22,23}.

When the encoded data is used for RE mapping, the encoded data needs to be mapped to the subset S1 of the Valid_RBsetIdx set. For secondary RE mapping, it is necessary to map the corresponding data in S1 to the corresponding position of Valid_RBset, that is, S2.

The two processes of data encoding and SC-FDMA signal generation are consistent with the solutions in LTE R10 and later versions.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases in an order different from that shown here The steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. A data transmission method, characterized in that, comprising: receiving a scheduling message, wherein the scheduling message carries resource block RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous; determining RB resources used for data transmission according to the RB resource information and currently available RB resources received in advance; performing data transmission according to the determined RB resource; Determining the RB resources used to transmit data according to the RB resource information and the currently available RB resources received in advance includes: Performing resource mapping on currently available RB resources received in advance according to the RB resource information to determine RB resources used for data transmission, wherein the resource mapping is to map continuous RB resources to the currently available RB resources. 2. The method according to claim 1, wherein performing resource mapping on the currently available RB resources received in advance according to the RB resource information to determine the RB resources used to transmit data comprises: Map the encoded data to the RB resource position allocated in the RB resource corresponding to the RB resource information; Perform secondary mapping of each data in the RB resource corresponding to the RB resource information to the RB resource position allocated in the currently available RB resource to determine the RB resource used for data transmission. 3. The method according to claim 1, characterized in that, before receiving the scheduling message, further comprising: receiving the currently available RB resources sent by the base station; Feedback a feedback message of successful reception to the base station. 4. A data processing method, characterized in that, comprising: sending a scheduling message to the terminal, where the scheduling message carries RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous; receiving the data transmitted by the RB resources used to transmit data determined by the terminal according to the RB resource information and the currently available RB resources received in advance; Determining the RB resources used to transmit data according to the RB resource information and the currently available RB resources received in advance includes: Performing resource mapping on currently available RB resources received in advance according to the RB resource information to determine RB resources used for data transmission, wherein the resource mapping is to map continuous RB resources to the currently available RB resources. 5. A data transmission device, characterized in that, comprising: The first receiving module is configured to receive a scheduling message, where the scheduling message carries resource block RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous; A determining module, configured to determine RB resources used for data transmission according to the RB resource information and currently available RB resources received in advance; A data transmission module, configured to perform data transmission according to the determined RB resources; The determining module includes: a determining submodule, configured to perform resource mapping on currently available RB resources received in advance according to the RB resource information to determine RB resources used for data transmission, wherein the resource mapping is to map consecutive RB resources The resources are mapped to the currently available RB resources. 6. The device according to claim 5, wherein the determining submodule comprises: a mapping unit, configured to map the encoded data to the RB resource position allocated in the RB resource corresponding to the RB resource information; The determining unit is configured to re-map each data in the RB resource corresponding to the RB resource information to the RB resource position allocated in the currently available RB resource and determine the RB resource used for data transmission. 7. The device according to claim 5, further comprising: The second receiving module is configured to receive currently available RB resources sent by the base station; A feedback module, configured to feed back a feedback message of successful reception to the base station. 8. A data processing device, characterized in that it comprises: A sending module, configured to send a scheduling message to the terminal, where the scheduling message carries RB resource information for data transmission, and the RB resources corresponding to the RB resource information are continuous; The third receiving module is configured to receive the data transmitted by the RB resources used to transmit data determined by the terminal according to the RB resource information and the currently available RB resources received in advance; Determining the RB resources used to transmit data according to the RB resource information and the currently available RB resources received in advance includes: Performing resource mapping on currently available RB resources received in advance according to the RB resource information to determine RB resources used for data transmission, wherein the resource mapping is to map continuous RB resources to the currently available RB resources.