CN107872833B

CN107872833B - Data transmission method and device in a kind of wireless network

Info

Publication number: CN107872833B
Application number: CN201610851425.2A
Authority: CN
Inventors: 赵亚利; 许芳丽; 刘佳敏
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-09-26
Filing date: 2016-09-26
Publication date: 2019-09-17
Anticipated expiration: 2036-09-26
Also published as: CN107872833A; WO2018054341A1

Abstract

The present invention provides the data transmission methods and device in a kind of wireless network, belong to wireless communication technology field.Wherein, which comprises send the measuring configuration message for carrying the mark of data transmission resources group to terminal, indicate that the terminal carries out channel quality measurement to the data transmission resources in the data transmission resources group；Receive the measurement reporting message that the terminal returns；It is selected to send data transmission resources group or data transmission resources used in downlink data to the terminal according to the measurement reporting message.According to the technical solution of the present invention, when downlink data reaches, it can be realized network side and select suitable downlink TRP and/or beam to carry out the transmission of downlink data.

Description

Data transmission method and device in a kind of wireless network

Technical field

The present invention relates to wireless communication technology field, the data transmission method and dress in a kind of wireless network are particularly related to It sets.

Background technique

Under 5G (the 5th third-generation mobile communication technology) network, (Transmission Reception Point is sent TRP Receiving node) deployment compare comparatively dense.It is mobile UE (terminal) for connected state, if its long-time does not have data transmission, Network side cannot accurately track the position of UE, when there is downlink data arrival, network side will be unable to determine by which TRP and/ Or the transmission of beam (wave beam) Lai Jinhang downlink data.

Summary of the invention

The technical problem to be solved in the present invention is to provide the data transmission methods and device in a kind of wireless network, in downlink When data reach, it can be realized network side and select suitable downlink TRP and/or beam to carry out the transmission of downlink data.

In order to solve the above technical problems, the embodiment of the present invention offer technical solution is as follows:

On the one hand, the data transmission method in a kind of wireless network is provided, applied to the centralized processing node in 5G network, The described method includes:

The measuring configuration message for carrying the mark of data transmission resources group is sent to terminal, indicates the terminal to described Data transmission resources in data transmission resources group carry out channel quality measurement；

Receive the measurement reporting message that the terminal returns；

It is selected to send data transmission resources group used in downlink data to the terminal according to the measurement reporting message Or data transmission resources.

Further, the step of measuring configuration message that the mark for carrying data transmission resources group is sent to terminal Before, the method also includes:

Multiple data transmission resources are divided into multi-group data transfer resource, data transmission resources is established and data transmission provides Mapping relations between the group of source, every group of data transmission resources include one or more data transmission resources；

The mapping relations are handed down to all terminals under network by broadcast message, or will be described by dedicated signaling Mapping relations are handed down to each terminal under network respectively；Or

Multiple data transmission resources are divided into multiple groups according to the movement speed of the terminal by the movement speed for obtaining terminal Data transmission resources establish the mapping relations between data transmission resources and data transmission resources group, every group of data transmission resources Including one or more data transmission resources；

The mapping relations are handed down to the terminal by dedicated signaling.

Further, multiple data transmission resources are divided into multi-group data transfer resource includes:

The nearest one or more data transmission resources of distance are divided into one group of data transmission resources.

Further, the measurement reporting message for receiving the terminal return includes:

The measurement reporting message that the terminal is returned by RRC signaling is received, includes number in the measurement reporting message According to the channel quality measurements of transfer resource group；

It is described to be selected to send the transmission money of data used in downlink data to the terminal according to the measurement reporting message Source group or data transmission resources include:

The data transmission resources for selecting channel quality best carry out downlink data transmission；Or

Selection includes that the data transmission resources group of the best data transmission resources of channel quality carries out downlink data transmission；Or

Selection includes that the data transmission resources group of the best data transmission resources of channel quality mean value carries out downlink data hair It send.

The measurement reporting message that the terminal is returned by MAC signaling is received, includes in the measurement reporting message State data transmission resources group or the mark of data transmission resources determined by terminal；

The corresponding data transmission of the mark of the data transmission resources group or data transmission resources that select the terminal to be returned Resource group or data transmission resources carry out downlink data transmission.

Further, data transmission resources group or data transmission resources determined by the terminal are that channel quality is best Data transmission resources group or data transmission resources；Or

When the measuring configuration message further includes predetermined selection condition, data transmission resources group determined by the terminal Or data transmission resources are the data transmission resources group or data transmission resources for meeting the predetermined selection condition.

Further, described to be selected to send number used in downlink data to the terminal according to the measurement reporting message After the step of transfer resource group or data transmission resources, the method also includes:

When downlink data reaches, sent out by selected data transmission resources group or data transmission resources to the terminal Send downlink data.

Further, the data transmission resources include transmitting and receiving node and wave beam.

The embodiment of the invention also provides the data transmission methods in a kind of wireless network, applied to the end in 5G network End, which comprises

Receive the measuring configuration message for the mark for carrying data transmission resources group that centralized processing node is sent；

Channel quality measurement is carried out to the data transmission resources in the data transmission resources group, obtains measurement result；

Measurement reporting message, the content of the measurement reporting message are sent to the centralized processing node according to preset rules It is determined by the measurement result.

Further, the measurement for receiving the mark for carrying data transmission resources group that centralized processing node is sent is matched Before the step of setting message further include:

Receive the centralized processing node by the data transmission resources that issue of broadcast message and data transmission resources group it Between mapping relations；Or

Receive data transmission resources that the centralized processing node is issued by dedicated signaling and data transmission resources group it Between mapping relations；

Wherein, every group of data transmission resources include one or more data transmission resources.

Further, described to send measurement reporting message, the measurement to the centralized processing node according to preset rules The content of reporting message is determined by the measurement result

According to preset report cycle to the centralized processing node reporting measurement reporting message；Or

When measurement result meets preset condition, to the centralized processing node reporting measurement reporting message；Or

When the time that measurement result meets preset condition being more than preset time threshold, reported to the centralized processing node Measure reporting message.

Further, the measurement reporting message is sent to the centralized processing node by RRC signaling for the terminal, Include following partial content or whole in the measurement reporting message: measurement mark, measurement identify corresponding data transmission money The measurement result of each data transmission resources or the data determined based on the measurement result of each data transmission resources in the group of source The mark of the measurement result of transfer resource group, the data transmission resources for meeting predetermined selection condition or data transmission resources group；

Or

The measurement reporting message is sent to the centralized processing node, the measurement by MAC signaling for the terminal It include data transmission resources group or the mark of data transmission resources determined by the terminal in reporting message.

Further, the preset condition includes:

It is currently the channel of one or more data transmission resources in the data transmission resources group of the terminal service Below default first thresholding of quality；Or

The channel quality of one or more data transmission resources in adjacent data transmission resources group is all higher than default second Thresholding；Or

The channel quality of the best data transmission resources of channel quality in adjacent data transmission resources group is better than being currently institute State the channel quality for the data transmission resources that channel quality is best in the data transmission resources group of terminal service；Or

It is currently the channel of the best data transmission resources of channel quality in the data transmission resources group of the terminal service Quality is lower than default first thresholding, the channel quality of the best data transmission resources of the channel quality in adjacent data transmission resources group Higher than default second thresholding；Or

The channel quality mean value of all data transmission resources in adjacent data transmission resources group is better than currently being the terminal The channel quality mean value of all data transmission resources in the data transmission resources group of service；Or

The channel quality mean value of all data transmission resources in adjacent data transmission resources group is lower than default first thresholding, when The channel quality mean value of all data transmission resources is higher than default second in the preceding data transmission resources group for the terminal service Thresholding.

Further, described to send measurement reporting message, the measurement to the centralized processing node according to preset rules After the step of content of reporting message is determined by the measurement result further include:

Receive the downlink data that the centralized processing node is issued by data transmission resources group or data transmission resources, institute It states data transmission resources group or data transmission resources is the centralized processing node according to selected by the measurement reporting message received It selects.

The embodiment of the invention also provides the data transmission devices in a kind of wireless network, applied to the concentration in 5G network Node is handled, described device includes:

First sending module, for sending the measuring configuration message for carrying the mark of data transmission resources group to terminal, Indicate that the terminal carries out channel quality measurement to the data transmission resources in the data transmission resources group；

First receiving module, the measurement reporting message returned for receiving the terminal；

Processing module sends number used in downlink data to the terminal for selecting according to the measurement reporting message According to transfer resource group or data transmission resources.

Further, described device further include:

Mapping relations establish module, for multiple data transmission resources to be divided into multi-group data transfer resource, establish number According to the mapping relations between transfer resource and data transmission resources group, every group of data transmission resources include that one or more data pass Defeated resource；

First sending module was also used to through all ends being handed down to the mapping relations under network that broadcast the message End, or each terminal by dedicated signaling being handed down to the mapping relations respectively under network；Or

Mapping relations establish module, will be multiple according to the movement speed of the terminal for obtaining the movement speed of terminal Data transmission resources are divided into multi-group data transfer resource, establish the mapping between data transmission resources and data transmission resources group Relationship, every group of data transmission resources include one or more data transmission resources；

First sending module is also used to that the mapping relations are handed down to the terminal by dedicated signaling.

Further, the mapping relations establish module and are specifically used for providing the nearest one or more data transmission of distance Source is divided into one group of data transmission resources.

Further, first receiving module is specifically used for receiving in the measurement that the terminal is returned by RRC signaling Message is reported, includes the channel quality measurements of data transmission resources group in the measurement reporting message；

The processing module is specifically used for the best data transmission resources of selection channel quality and carries out downlink data transmission；Or

Further, first receiving module is specifically used for receiving in the measurement that the terminal is returned by MAC signaling Message is reported, includes data transmission resources group or data transmission resources determined by the terminal in the measurement reporting message Mark；

The processing module is specifically used for the data transmission resources group for selecting the terminal to be returned or data transmission resources The corresponding data transmission resources group of mark or data transmission resources carry out downlink data transmission.

Further, described device further include:

Downlink data sending module, for passing through selected data transmission resources group or number when downlink data reaches Downlink data is sent to the terminal according to transfer resource.

The embodiment of the invention also provides the data transmission devices in a kind of wireless network, applied to the end in 5G network End, described device include:

Second receiving module, for receiving the survey for the mark for carrying data transmission resources group that centralized processing node is sent Amount configuration message；

Measurement module is obtained for carrying out channel quality measurement to the data transmission resources in the data transmission resources group To measurement result；

Second sending module, it is described for sending measurement reporting message to the centralized processing node according to preset rules The content of measurement reporting message is determined by the measurement result.

Further, second receiving module is also used to

Further, second sending module is specifically used for:

Or

Further, the preset condition includes:

Further, second receiving module is also used to receive the centralized processing node by data transmission resources group Or the downlink data that data transmission resources issue, the data transmission resources group or data transmission resources are centralized processing section Point is selected according to the measurement reporting message received.

The embodiment of the present invention has the advantages that

In above scheme, terminal log carries out channel quality measurement, and base according to the data transmission resources in transfer resource group Measurement reporting message is sent to centralized processing node in measurement result, centralized processing node is reported according to the measurement that terminal reports to disappear Breath can track the position of terminal, to select suitable data transmission resources group or data transmission resources by downlink data It is sent to terminal, the transmission of downlink data, Neng Goubao are carried out by the suitable data transmission resources group or data transmission resources Demonstrate,prove the communication quality of 5G network.

Detailed description of the invention

Fig. 1 is the flow diagram of the data transmission method in one wireless network of the embodiment of the present invention；

Fig. 2 is the structural block diagram of the data transmission device in two wireless network of the embodiment of the present invention；

Fig. 3 is the flow diagram of the data transmission method in three wireless network of the embodiment of the present invention；

Fig. 4 is the structural block diagram of the data transmission device in four wireless network of the embodiment of the present invention；

Fig. 5 is the configuration diagram of 5G hierarchical network；

Fig. 6 is the flow diagram of the data transmission method in five wireless network of the embodiment of the present invention；

Fig. 7 is the flow diagram of the data transmission method in six wireless network of the embodiment of the present invention.

Specific embodiment

To keep the embodiment of the present invention technical problems to be solved, technical solution and advantage clearer, below in conjunction with Drawings and the specific embodiments are described in detail.

The embodiment of the present invention is for UE mobile for connected state in existing 5G network, if its long-time does not have data hair It send, then network side cannot accurately track the position of UE, when there is downlink data arrival, network side will be unable to which determination passes through The problem of transmission of the TRP and/or beam to carry out downlink data, provides data transmission method and dress in a kind of wireless network It sets, when downlink data reaches, can be realized network side and suitable downlink TRP and/or beam is selected to carry out downlink data It sends.

Embodiment one

The present embodiment provides the data transmission methods in a kind of wireless network, applied to the centralized processing section in 5G network Point, as shown in Figure 1, which comprises

Step 101: sending the measuring configuration message for carrying the mark of data transmission resources group to terminal, indicate the end It holds and channel quality measurement is carried out to the data transmission resources in the data transmission resources group；

Step 102: receiving the measurement reporting message that the terminal returns；

Step 103: being selected to send the biography of data used in downlink data to the terminal according to the measurement reporting message Defeated resource group or data transmission resources.

In the present embodiment, terminal log carries out channel quality measurement, and base according to the data transmission resources in transfer resource group Measurement reporting message is sent to centralized processing node in measurement result, centralized processing node is reported according to the measurement that terminal reports to disappear Breath can track the position of terminal, to select suitable data transmission resources group or data transmission resources by downlink data It is sent to terminal, the transmission of downlink data, Neng Goubao are carried out by the suitable data transmission resources group or data transmission resources Demonstrate,prove the communication quality of 5G network.

In one specific embodiment, the measuring configuration for sending the mark for carrying data transmission resources group to terminal disappears Before the step of breath, the method also includes:

The mapping relations are handed down to all terminals under network by broadcast message, or will be described by dedicated signaling Mapping relations are handed down to each terminal under network respectively.

It is described that the measuring configuration for carrying the mark of data transmission resources group is sent to terminal in another specific embodiment Before the step of message, the method also includes:

The mapping relations are handed down to the terminal by dedicated signaling.

Embodiment two

The data transmission device in a kind of wireless network is present embodiments provided, applied to the centralized processing section in 5G network Point, comprising: processor；And the memory being connected by bus interface with the processor, the memory is for storing The processor used program and data when executing operation, are stored when processor is called and executed in the memory Program and data when, as shown in Fig. 2, including realizing following functional module or unit:

First sending module 21, the measuring configuration for sending the mark for carrying data transmission resources group to terminal disappear Breath indicates that the terminal carries out channel quality measurement to the data transmission resources in the data transmission resources group；

First receiving module 22, the measurement reporting message returned for receiving the terminal；

Processing module 23, for selecting to send used in downlink data to the terminal according to the measurement reporting message Data transmission resources group or data transmission resources.

In one specific embodiment, described device further include:

Mapping relations establish module 24, for multiple data transmission resources to be divided into multi-group data transfer resource, establish Mapping relations between data transmission resources and data transmission resources group, every group of data transmission resources include one or more data Transfer resource；

First sending module was also used to through all ends being handed down to the mapping relations under network that broadcast the message End, or each terminal by dedicated signaling being handed down to the mapping relations respectively under network.

In another specific embodiment, described device further include:

Mapping relations establish module 24, will be more according to the movement speed of the terminal for obtaining the movement speed of terminal A data transmission resources are divided into multi-group data transfer resource, establish reflecting between data transmission resources and data transmission resources group Relationship is penetrated, every group of data transmission resources include one or more data transmission resources；

Further, described device further include:

Downlink data sending module 25, for when downlink data reaches, by selected data transmission resources group or Data transmission resources send downlink data to the terminal.

Embodiment three

The data transmission method in a kind of wireless network is present embodiments provided, applied to the terminal in 5G network, such as Fig. 3 It is shown, which comprises

Step 301: the measuring configuration for receiving the mark for carrying data transmission resources group that centralized processing node is sent disappears Breath；

Step 302: channel quality measurement being carried out to the data transmission resources in the data transmission resources group, is measured As a result；

Step 303: sending measurement reporting message to the centralized processing node according to preset rules, the measurement, which reports, to disappear The content of breath is determined by the measurement result.

Further, the measurement reporting message is sent to the centralized processing node by RRC signaling for the terminal, Include following partial content or whole in the measurement reporting message: measurement mark, measurement identify corresponding data transmission money The measurement result of each data transmission resources or the data determined based on the measurement result of each data transmission resources in the group of source The mark of the measurement result of transfer resource group, the data transmission resources for meeting condition or data transmission resources group；

Or

Further, the preset condition includes:

Example IV

The present embodiment additionally provides the data transmission device in a kind of wireless network, applied to the terminal in 5G network, packet It includes: processor；And the memory being connected by bus interface with the processor, the memory is for storing the place Device used program and data when executing operation are managed, when processor calls and executes the program stored in the memory When with data, as shown in figure 4, including realizing following functional module or unit:

Second receiving module 41, the mark for carrying data transmission resources group sent for receiving centralized processing node Measuring configuration message；

Measurement module 42, for carrying out channel quality measurement to the data transmission resources in the data transmission resources group, Obtain measurement result；

Second sending module 43, for sending measurement reporting message, institute to the centralized processing node according to preset rules The content for stating measurement reporting message is determined by the measurement result.

Further, second receiving module is also used to

Further, second sending module is specifically used for:

Or

Further, the preset condition includes:

Super-intensive networking is a trend of future mobile communication system development, in super-intensive networking, for reality Now to the Unified Control Plane management of a large amount of distributed processing nodes, need area protocol function carrying out centralized processing, in this way It is formed the double-deck access planar network architecture of centralized processing node and distributed processing node.Wherein distributed processing node is also referred to as TRP (Transmission Reception Point transmits and receives node), centralized processing node is also referred to as CU (Central Unit focuses on node) or NR eNB (New RAT eNB, new access technology base station).For focusing on node, root According to function difference, the control plane of centralized processing node and the user face of centralized processing node can also be further divided into.

Based on foregoing description, the network architecture schematic diagram of future mobile communication system is as shown in Figure 5.Wherein TRP is supported Single beam (simple beam) or multiple beam (multi-beam) transmission.For single beam, beam measurement result Equal to the measurement result to TRP；For multiple beam, due to having multiple beam, beam measurement knot under a TRP Fruit and TRP measurement result are incoordinate.

Under 5G network, comparatively dense is compared in the deployment of TRP.UE mobile for connected state, if its long-time does not have data hair It send, then network side cannot accurately track the position of UE, when there is downlink data arrival, network side will be unable to which determination passes through TRP and/or beam carries out the transmission of downlink data.Therefore it needs to consider to introduce UE and services TRP and/or beam follow-up mechanism, Suitable downlink TRP and/or beam is selected to carry out downlink data when downlink data reaches, to can be realized network side It sends.

The technical scheme is that being grouped by network side to data transmission resources, it is divided into several data transmission money Source Group (group), and the mapping relations of data transmission resources and data transmission resources Group are allocated to terminal.Terminal is when hair When raw change in location, report measurement results are to network side, so as to the current corresponding data transmission resources of network side more new terminal Group, when there is downlink data arrival, network side selects suitable downlink data transmission resource according to the measurement result that terminal reports Or data transmission resources Group carries out data transmission.Wherein, terminal report measurement results can use RRC signaling, can also be with Using MAC signaling, for example introduce new MAC CE signaling.

Above-mentioned data transmission resources include TRP and beam, below by taking data transmission resources are TRP as an example, in conjunction with specific Technical solution of the present invention is described further in embodiment:

Embodiment five

As shown in fig. 6, the data transmission method of the present embodiment the following steps are included:

Step 501: based on the mapping relations between network configuration TRP and TRP Group；

Specifically, by the mapping relations between CU configuration TRP and TRP Group, equipping rules are proximity principle, i.e., will be away from It is divided into one group of TRP from nearest one or more TRP, for the ease of identifying TRP and TRP Group, TRP ID can be introduced (mark) and TRP Group ID.

Based on network configuration, i.e., for terminals all in network, the mapping relations of TRP and TRP Group are all phases With.The case where for being based on network configuration, the mapping relations of TRP and TRP Group can by CU by broadcast message or Dedicated signaling notifies terminal.Further, for being notified mapping relations to terminal by broadcast message the case where, terminal can lead to On-demand SI is crossed to obtain mapping relations.

Step 502:CU sends measuring configuration message to terminal；

Include measurement object in measuring configuration message and report configuration, measurement object is each of TRP Group TRP, each TRP are identified with TRP Group, specifically, are wrapped in measuring configuration message with TRP ID mark, TRP Group TRP Group mark is included, i.e. instruction terminal identifies the TRP in corresponding TRP Group to TRP Group and carries out channel quality Measurement.Reporting configuration (report configuration) includes the triggering type that terminal sends measurement reporting message, triggers class The event that type is divided into is triggered to report and be reported with period triggering, and configuration is each reported to possess individual ID.

The threshold value for reporting configuration meeting some event of dispensing of event trigger type, can also optionally configure satisfaction touching The duration (Time to Trigger) of clockwork spring part.Periodic triggers type reports configuration dispensing periodic triggers Purpose.

Event trigger type is reported, trigger condition may include but be not limited to:

Trigger condition 1: one or more (multiple comprising all) TRP in the current TRP Group for terminal service Channel quality is below thresholding 1.

Trigger condition 2: the channel quality of one or more TRP (multiple comprising all) is higher than door in adjacent TRP Group Limit 2.

Trigger condition 3: the channel quality of the best TRP of channel quality is better than current for terminal service in adjacent TRP Group TRP Group in the best TRP of channel quality channel quality.

Trigger condition 4: the channel quality of the best TRP of channel quality is lower than in the current TRP Group for terminal service Thresholding 1, the channel quality of the best TRP of channel quality is higher than thresholding 2 in adjacent TRP Group.

Trigger condition 5: the mean value of all TRP channel qualities is better than the current TRP for terminal service in adjacent TRP Group The mean value of the channel quality of all TRP in Group.

Trigger condition 6: the mean value quality of all TRP channel qualities is lower than thresholding 1 in adjacent TRP Group, is currently terminal The channel quality of all TRP is higher than thresholding 2 in the TRP Group of service.

Further, measuring configuration message further includes other parameters, for example, including measurement amount configure, measurement open thresholding with And the other parameters such as speed zooming parameter.In measuring configuration message, each measurement object has the measurement mark of oneself (measurement ID) can be associated with a measurement object simultaneously and report configuration, if having reached measurement opens thresholding, eventually End can be measured according to the presence or absence of measurement mark, be measured to the measurement object for having measurement to identify.

Step 503: terminal carries out channel quality measurement to measurement object, and sends measurement reporting message to CU；

It includes following some or all of that measure reporting message, which include content: measurement mark, the measurement result of each TRP or The measurement result for the TRP Group that person is determined based on TRP measurement result, if further including pre- in the measuring configuration message that CU is issued If when alternative condition, measuring in reporting message further includes meeting TRP ID or TRP Group ID of predetermined selection condition etc.. Whether the measurement result for the TRP TRP Group for meeting predetermined selection condition is reported to depend on CU whether configurating terminal reports These information.

Under each measurement mark, it is divided into measurement assessment with tissue and reports two processes:

Measurement assessment, i.e. terminal search out the TRP Group for meeting in some measurement object and reporting configuration by measurement, It is assessed, when cell all meets predetermined selection condition within a certain period of time (Time To Trigger), is reported being comprised in In list；Once there is new TRP Group to enter report list, it will trigger and report process.

Tissue reports: filling in the process of measurement reporting message, needs to fill in measurement mark, current TRP or TRP Group metrical information, adjacent TRP Group metrical information.The acquisition process of adjacent TRP Group metrical information is to assess measurement In report list in include TRP Group according in configuration give reporting measurement amount be ranked up, such as by from height to The sequence filling measurement reporting message at bottom.

Terminal, which sends measurement reporting message to CU, can be used RRC (wireless heterogeneous networks) signaling.In order to further save Time delay directly can also determine the best TRP Group of channel quality according to measurement result by terminal, directly be believed by MAC CE Order is reported to CU, and MAC CE needs to define new LCID (Logic Channel Identifier), and carries selected TRP Group ID.

Step 504:CU according to measurement reporting message select to terminal send downlink data used in TRP Group or TRP；

If what terminal was used to CU transmission measurement reporting message is RRC signaling, measuring in reporting message includes TRP The channel quality measurements of Group, then selection course specifically includes:

The TRP for selecting channel quality best carries out downlink data transmission；Or

Selection includes that the TRP Group of the best TRP of channel quality carries out downlink data transmission；Or

Selection includes that the TRP Group of the best TRP of channel quality mean value carries out downlink data transmission.

If what terminal was used to CU transmission measurement reporting message is MAC signaling, measuring in reporting message includes end The mark of TRP or TRP Group, then directly determine downlink according to the TRP Group ID carried in MAC signaling determined by holding TRP Group carries out data transmission.

Step 505: when there is downlink data arrival, CU sends lower line number to terminal by selected TRP Group or TRP According to.

Specifically, it includes downlink service data or control information (such as PDCCH (physical down control that downlink data, which is sent, Channel processed) order) transmission.In order to guarantee that the consistency of terminal and CU understanding, terminal are also selected according to principle identical with CU TRP the TRP Group to be monitored.

In the present embodiment, terminal carries out channel quality measurement to the TRP in TRP group, and based on measurement result at concentration It manages node and sends measurement reporting message, the measurement reporting message that centralized processing node is reported according to terminal can track terminal Position, to select suitable TRP group or TRP that downlink data is sent to terminal, by the suitable TRP group or TRP into The transmission of row downlink data can guarantee the communication quality of 5G network.

Above-described embodiment is introduced the data transmission method in wireless network so that data transmission resources are TRP as an example, Certainly, data transmission resources can also be beam, as long as the TRP in above-described embodiment is replaced with beam, herein no longer It repeats.

Embodiment six

As shown in fig. 7, the data transmission method of the present embodiment the following steps are included:

Step 601: based on the mapping relations between terminal configuration TRP and TRP Group；

It is configured based on terminal, i.e., the mapping relations for the different terminals under network, between TRP and TRP Group It may be the same or different.For being based on the case where terminal configures, the mapping relations between TRP and TRP Group can only lead to Cross dedicated signaling notice terminal.

Further, for the mode configured based on terminal, network can be determined based on factors such as the movement speeds of terminal The size of TRP Group.Such as the UE of high-speed mobile, biggish TRP Group is configured, i.e. TRP Group includes more TRP；UE mobile for low speed, configures lesser TRP Group, i.e. TRP Group includes less TRP.

Step 602:CU sends measuring configuration message to terminal；

Step 603: terminal carries out channel quality measurement to measurement object, and sends measurement reporting message to CU；

Step 604:CU according to measurement reporting message select to terminal send downlink data used in TRP Group or TRP；

Step 605: when there is downlink data arrival, CU sends lower line number to terminal by selected TRP Group or TRP According to.

It should be noted that the device that second, four embodiments of the invention provide is can to correspond to realize that the above method is implemented The device for the data transmission method that example provides, therefore all embodiments based on data transmission method that above method embodiment provides Can be to should apply to the second, fourth embodiment, and can reach the same or similar beneficial effect.

In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only For a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase Coupling, direct-coupling or communication connection between mutually can be through some interfaces, the INDIRECT COUPLING or communication of device or unit Connection can be electrical property, mechanical or other forms.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.

The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes receiving/transmission method described in each embodiment of the present invention Part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store The medium of program code.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. the data transmission method in a kind of wireless network, applied to the centralized processing node in 5G network, which is characterized in that institute The method of stating includes:

The measuring configuration message for carrying the mark of data transmission resources group is sent to terminal, indicates the terminal to the data Data transmission resources in transfer resource group carry out channel quality measurement；

Receive the measurement reporting message that the terminal returns；

It is selected to send data transmission resources group or number used in downlink data to the terminal according to the measurement reporting message According to transfer resource；

The data transmission resources include transmitting and receiving node TRP and wave beam beam.

2. the data transmission method in wireless network according to claim 1, which is characterized in that described to be taken to terminal transmission Before the step of measuring configuration message of mark with data transmission resources group, the method also includes:

Multiple data transmission resources are divided into multi-group data transfer resource, establish data transmission resources and data transmission resources group Between mapping relations, every group of data transmission resources include one or more data transmission resources, will be described by broadcast message Mapping relations are handed down to all terminals under network, or the mapping relations are handed down to respectively under network by dedicated signaling Each terminal；Or

Multiple data transmission resources are divided into multi-group data according to the movement speed of the terminal by the movement speed for obtaining terminal Transfer resource, establishes the mapping relations between data transmission resources and data transmission resources group, and every group of data transmission resources include The mapping relations are handed down to the terminal by dedicated signaling by one or more data transmission resources.

3. the data transmission method in wireless network according to claim 2, which is characterized in that transmit multiple data and provide Source is divided into multi-group data transfer resource

4. the data transmission method in wireless network according to claim 1, which is characterized in that described to receive the terminal The measurement reporting message of return includes:

The measurement reporting message that the terminal is returned by RRC signaling is received, includes that data pass in the measurement reporting message The channel quality measurements of defeated resource group；

It is described to be selected to send data transmission resources group used in downlink data to the terminal according to the measurement reporting message Or data transmission resources include:

Selection includes that the data transmission resources group of the best data transmission resources of channel quality mean value carries out downlink data transmission.

5. the data transmission method in wireless network according to claim 1, which is characterized in that described to receive the terminal The measurement reporting message of return includes:

The measurement reporting message that the terminal is returned by MAC signaling is received, includes the end in the measurement reporting message The mark of data transmission resources group determined by holding or data transmission resources；

The corresponding data transmission resources of the mark of the data transmission resources group or data transmission resources that select the terminal to be returned Group or data transmission resources carry out downlink data transmission.

6. the data transmission method in wireless network according to claim 5, which is characterized in that

Data transmission resources group or data transmission resources determined by the terminal are the best data transmission resources of channel quality Group or data transmission resources；Or

When the measuring configuration message further includes predetermined selection condition, data transmission resources group or number determined by the terminal It is the data transmission resources group or data transmission resources for meeting the predetermined selection condition according to transfer resource.

7. the data transmission method in wireless network according to claim 1, which is characterized in that described according to the measurement Reporting message selects the step of sending data transmission resources group used in downlink data or data transmission resources to the terminal Later, the method also includes:

When downlink data reaches, under being sent by selected data transmission resources group or data transmission resources to the terminal Row data.

8. the data transmission method in a kind of wireless network, applied to the terminal in 5G network, which is characterized in that the method packet It includes:

Measurement reporting message is sent to the centralized processing node according to preset rules, the content of the measurement reporting message is by institute State measurement result decision；

9. the data transmission method in wireless network according to claim 8, which is characterized in that the reception centralized processing Before the step of measuring configuration message for the mark for carrying data transmission resources group that node is sent further include:

The centralized processing node is received to pass through between the broadcast message data transmission resources issued and data transmission resources group Mapping relations；Or

The centralized processing node is received to pass through between the dedicated signaling data transmission resources issued and data transmission resources group Mapping relations；

10. the data transmission method in wireless network according to claim 8, which is characterized in that described according to default rule Measurement reporting message then is sent to the centralized processing node, the content of the measurement reporting message is determined by the measurement result Include:

When the time that measurement result meets preset condition being more than preset time threshold, to the centralized processing node reporting measurement Reporting message.

11. the data transmission method in wireless network according to claim 10, which is characterized in that

The measurement reporting message is sent to the centralized processing node by RRC signaling for the terminal, and the measurement reports Include following partial content or whole in message: measurement mark, measurement identify every number in corresponding data transmission resources group The data transmission resources group that measurement result according to transfer resource or the measurement result based on each data transmission resources determine The mark of measurement result, the data transmission resources for meeting predetermined selection condition or data transmission resources group；

Or

The measurement reporting message is sent to the centralized processing node by MAC signaling for the terminal, and the measurement reports It include data transmission resources group or the mark of data transmission resources determined by the terminal in message.

12. the data transmission method in wireless network according to claim 10, which is characterized in that the preset condition packet It includes:

It is currently the channel quality of one or more data transmission resources in the data transmission resources group of the terminal service Below default first thresholding；Or

The channel quality of one or more data transmission resources in adjacent data transmission resources group is all higher than default second thresholding； Or

The channel quality of the best data transmission resources of channel quality in adjacent data transmission resources group is better than being currently the end Hold the channel quality for the data transmission resources that channel quality is best in the data transmission resources group of service；Or

It is currently the channel quality of the best data transmission resources of channel quality in the data transmission resources group of the terminal service Lower than default first thresholding, the channel quality of the best data transmission resources of channel quality in adjacent data transmission resources group is higher than Default second thresholding；Or

The channel quality mean value of all data transmission resources in adjacent data transmission resources group is better than currently being the terminal service Data transmission resources group in all data transmission resources channel quality mean value；Or

The channel quality mean value of all data transmission resources in adjacent data transmission resources group is lower than default first thresholding, is currently The channel quality mean value of all data transmission resources is higher than default second thresholding in the data transmission resources group of the terminal service.

13. the data transmission method in wireless network according to claim 8, which is characterized in that described according to default rule Measurement reporting message then is sent to the centralized processing node, the content of the measurement reporting message is determined by the measurement result The step of after further include:

Receive the downlink data that the centralized processing node is issued by data transmission resources group or data transmission resources, the number It is that the centralized processing node is selected according to the measurement reporting message received according to transfer resource group or data transmission resources.

14. the data transmission device in a kind of wireless network, applied to the centralized processing node in 5G network, which is characterized in that Described device includes:

First sending module, for sending the measuring configuration message for carrying the mark of data transmission resources group, instruction to terminal The terminal carries out channel quality measurement to the data transmission resources in the data transmission resources group；

Processing module sends the biography of data used in downlink data to the terminal for selecting according to the measurement reporting message Defeated resource group or data transmission resources；

15. the data transmission device in wireless network according to claim 14, which is characterized in that described device is also wrapped It includes:

Mapping relations establish module, for multiple data transmission resources to be divided into multi-group data transfer resource, establish data biography Mapping relations between defeated resource and data transmission resources group, every group of data transmission resources include one or more data transmission moneys Source；First sending module is also used to through all terminals being handed down to the mapping relations under network that broadcast the message, or The each terminal being handed down to the mapping relations respectively by dedicated signaling under network；Or

Mapping relations establish module, for obtaining the movement speed of terminal, according to the movement speed of the terminal by multiple data Transfer resource is divided into multi-group data transfer resource, and the mapping established between data transmission resources and data transmission resources group is closed System, every group of data transmission resources include one or more data transmission resources；First sending module is also used to by dedicated The mapping relations are handed down to the terminal by signaling.

16. the data transmission device in wireless network according to claim 15, which is characterized in that

The mapping relations establish module and are specifically used for the nearest one or more data transmission resources of distance being divided into one group Data transmission resources.

17. the data transmission device in wireless network according to claim 14, which is characterized in that

First receiving module is specifically used for receiving the measurement reporting message that the terminal is returned by RRC signaling, the survey It include the channel quality measurements of data transmission resources group in amount reporting message；

18. the data transmission device in wireless network according to claim 14, which is characterized in that

First receiving module is specifically used for receiving the measurement reporting message that the terminal is returned by MAC signaling, the survey Measuring in reporting message includes data transmission resources group or the mark of data transmission resources determined by the terminal；

The processing module is specifically used for the mark of the data transmission resources group or data transmission resources that select the terminal to be returned Know corresponding data transmission resources group or data transmission resources carry out downlink data transmission.

19. the data transmission device in wireless network according to claim 18, which is characterized in that

20. the data transmission device in wireless network according to claim 14, which is characterized in that described device is also wrapped It includes:

Downlink data sending module, for being passed by selected data transmission resources group or data when downlink data reaches Defeated resource sends downlink data to the terminal.

21. the data transmission device in a kind of wireless network, applied to the terminal in 5G network, which is characterized in that described device Include:

Second receiving module, the measurement for receiving the mark for carrying data transmission resources group that centralized processing node is sent are matched Set message；

Measurement module is surveyed for carrying out channel quality measurement to the data transmission resources in the data transmission resources group Measure result；

Second sending module, for sending measurement reporting message, the measurement to the centralized processing node according to preset rules The content of reporting message is determined by the measurement result；

22. the data transmission device in wireless network according to claim 21, which is characterized in that described second receives mould Block is also used to

23. the data transmission device in wireless network according to claim 21, which is characterized in that described second sends mould Block is specifically used for:

24. the data transmission device in wireless network according to claim 23, which is characterized in that

Or

25. the data transmission device in wireless network according to claim 23, which is characterized in that the preset condition packet It includes:

26. the data transmission device in wireless network according to claim 21, which is characterized in that

Second receiving module is also used to receive the centralized processing node and passes through data transmission resources group or data transmission money The downlink data that source issues, the data transmission resources group or data transmission resources are the centralized processing node according to receiving Measurement reporting message it is selected.