CN109921884A - The method, apparatus and communication system of data transmit-receive - Google Patents
The method, apparatus and communication system of data transmit-receive Download PDFInfo
- Publication number
- CN109921884A CN109921884A CN201711332008.8A CN201711332008A CN109921884A CN 109921884 A CN109921884 A CN 109921884A CN 201711332008 A CN201711332008 A CN 201711332008A CN 109921884 A CN109921884 A CN 109921884A
- Authority
- CN
- China
- Prior art keywords
- data block
- terminal
- network equipment
- data
- network device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
The embodiment of the present application discloses a kind of received method of data in communication network.The described method includes: terminal receives the M data block that the network equipment is sent, there is N number of data block reception mistake in the M data block, wherein M, N are integer, and M >=N >=2；The terminal instruction and destination network device corresponding to a data block in N number of data block, retransmit one data block.It indicates to receive the network equipment corresponding to a data block in multiple data blocks of mistake by terminal device to be retransmitted, avoids N number of data block and be all retransmitted, it is possible to reduce the number of retransmissions of data block saves downlink transfer resource.
Description
Technical field
This application involves the communications fields, more particularly to technology relevant to data block retransmissions.
Background technique
In order to improve data rate, cell edge throughput and throughput of system, cooperative multipoint transmission (coordinated
Multi-point, CoMP) technology is widely used.According to user data whether is shared between the network equipment, downlink CoMP divides
It is two kinds: Combined Treatment (joint processing, JP) and cooperative scheduling/beam forming (coordinated
scheduling/beamforming,CS/CB).Wherein joint processing technology is divided into two kinds: joint transmission (joint
Transmission, JT) and dynamic transmission point/cell selection (dynamic point/cell selection, DPS/DCS).
JT refers to that terminal receives the Physical Downlink Shared Channel information from multiple network equipments, and carries out to these information
Relevant or incoherent merging, to improve received signal quality and inhibit the interference of other terminals.The advantages of JT, is to mention
High system spectral efficiency enhances MPS process, and inter-cell interference is converted to desired signal.JT can be divided into relevant JT
(coherent JT) and incoherent JT (non-coherent JT, NC-JT).In relevant JT, multiple network equipments are to issuing
The signal of one terminal carries out joint precoding, and the cooperation between this multiple network equipments is for passback (backhaul)
Information exchange has strict requirements.In NC-JT, the multiple network equipments for sending signal to terminal carry out independent precoding.
In long term evolution (long term evolution, LTE) system, loses or the re-transmission of the data of error is main
By the hybrid automatic repeat-request (hybrid of media access control (media access control, MAC) layer
Automatic repeat request, HARQ) mechanism and wireless spread-spectrum technology (radio link control, RLC) layer
Functions of retransmission processing.Terminal needs to feed back affirmative acknowledgement (ACK) to each correct code word (codeword, CW) of demodulation
(acknowledgement, ACK), to the codeword feedback negative acknowledge (negative of each demodulation failure
Acknowledgment, NACK), the network equipment needs to carry out one or many retransmit until terminal to the code word of feedback NACK
It demodulates successfully.The network equipment all retransmits the code word of feedback NACK, wastes downlink transfer resource.
Summary of the invention
The embodiment of the present application provides and chooses the side that a data block is retransmitted from the data block more than or equal to two
Method, apparatus and system save the purpose of downlink transfer resource so that the number of transmissions can be reduced by reaching.
In a first aspect, the embodiment of the present application provides a kind of method of data receiver, terminal receives the M that the network equipment is sent
A data block has N number of data block reception mistake in the M data block, wherein M, N are integer, and M >=N >=2；The end
End instruction and destination network device corresponding to a data block in N number of data block, retransmit one data block.
The data receiver method can reduce data block retransmissions number, save downlink transfer resource.
Wherein, the network equipment may include the destination network device.
In one possible implementation, the terminal instruction and the data block institute in N number of data block are right
The destination network device answered retransmits one data block, comprising: and the terminal sends information to the destination network device,
The information is used to indicate the destination network device and retransmits one data block.
In one possible implementation, the hybrid automatic repeat-request HARQ feedback message including the information is by institute
It states terminal and the network equipment is arranged, the terminal is sent by the HARQ feedback message to the destination network device
The information.
In one possible implementation, the information is located in bitmap bitmap.At this point, the terminal is to target network
Network equipment carries out the HARQ feedback of code block group (code block group, CBG) grade, the bit map bitmap that can be used
In increase newly a bit, be used to indicate destination network device and data block retransmitted.HARQ relative to block level is anti-
Feedback can be further reduced unnecessary re-transmission, save downlink transfer resource.
In one possible implementation, the terminal is by the HARQ feedback message to the destination network device
Send the information.The terminal is by the new meaning with the predefined HARQ message of the network equipment, to help terminal instruction to need
The data block to be retransmitted.By arranging the meaning of HARQ feedback message, do not need to increase additional field or uplink money
Source, so that it may realize that terminal designation date block retransmits.
In one possible implementation, the resource that the terminal is distributed by the network equipment, instruction target network are set
It is standby to retransmit one data block.Such mode can be with saving signaling expense.
Second aspect, the embodiment of the present application provide a kind of method of data transmission, and destination network device is sent to terminal
Data block, the data block are that the network equipment is received into the M data block that the terminal is sent in N number of data block of mistake
One, wherein M, N are integer, and M >=N >=2；The destination network device is according to the instruction of the terminal, described in re-transmission
Data block.
Wherein, the network equipment may include the destination network device.
In one possible implementation, the destination network device retransmits the number according to the instruction of the terminal
According to block, comprising: the network equipment receives information transmitted by terminal, and the information is used to indicate destination network device re-transmission
Data block.
In one possible implementation, the hybrid automatic repeat-request HARQ feedback message including the information is by institute
It states terminal and the network equipment is arranged, the destination network device receives the terminal and sent out by the HARQ feedback message
The information sent.
In one possible implementation, the information is located in bitmap bitmap.Described in the network equipment receives
The HARQ feedback of the CBG grade of terminal.In CBG grades of HARQ feedback, a bit, institute are increased in bit map bitmap newly
It states destination network device and determines to retransmit data block according to the added bits position in bitmap.
In one possible implementation, the destination network device is distributed according to the terminal in the network equipment
To the instruction in the resource of the terminal, the data block is retransmitted.
The third aspect, communication device provided by the embodiments of the present application, can be terminal, the chip being also possible in terminal.
The communication device has the function of realizing the technical solution of each possible design of above-mentioned first aspect and first aspect.It should
Function can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or
Multiple modules corresponding with above-mentioned function.
In a kind of possible design, which includes processing unit and Transmit-Receive Unit, wherein the processing unit
The function for realizing each possible technical solution designed of above-mentioned first aspect and first aspect for controlling the Transmit-Receive Unit
Energy.
In alternatively possible design, which includes processor and memory, and wherein memory is for storing
Program, processor is for calling the program stored in memory, to realize that first aspect and first aspect any one may
Design in determine time-domain resource method.
It should be noted that processor can be sent or be received number by input/output interface, pin or circuit etc.
According to.Memory can be register, the caching etc. in chip.In addition, memory, which can also be in terminal device, is located at chip
External storage unit, such as read-only memory (read-only memory, ROM), other that static information and instruction can be stored
Static storage device, random access memory (random access memory, RAM) of type etc..
Wherein, the processor that any of the above-described place mentions can be a general central processing unit (central
Processing unit, CPU), microprocessor, application-specific integrated circuit (application-specific
Integrated circuit, ASIC), or it is one or more for controlling the above-mentioned first aspect of execution or first aspect times
The integrated circuit of the program of the method for the data receiver for a possible design of anticipating.
Fourth aspect, communication device provided by the embodiments of the present application, can be the network equipment, be also possible in the network equipment
Chip.The communication device has the technical solution for each possible design for realizing above-mentioned second aspect and second aspect
Function.The function can also execute corresponding software realization by hardware realization by hardware.The hardware or software package
Include one or more modules corresponding with above-mentioned function.
In a kind of possible design, which includes processing unit and Transmit-Receive Unit, and the processing unit is used for
Control the function that the Transmit-Receive Unit realizes each possible technical solution designed of above-mentioned second aspect and second aspect.
In alternatively possible design, which includes processor and memory, and wherein memory is for storing
Program, processor is for calling the program stored in memory, to realize that second aspect and second aspect any one may
Design in indicate time-domain resource method.It should be noted that processor can pass through input/output interface, pin or electricity
Road etc. sends or receives data.Memory can be register, the caching etc. in chip.In addition, memory can also be network
Such as ROM, the storage unit positioned at chip exterior in equipment can store static information and the other kinds of static state of instruction is deposited
Store up equipment, RAM etc..
Wherein, the processor that any of the above-described place mentions, can be a general CPU, microprocessor, specific ASIC, or
One or more executes the side for the data transmission that above-mentioned second aspect or second aspect any one may design for controlling
The integrated circuit of the program of method.
5th aspect, the embodiment of the present application also provide a kind of computer readable storage medium, the computer-readable storage medium
Matter is stored with program, when the program is running on computers, so that computer executes method described in above-mentioned various aspects.
6th aspect, the application also provides a kind of computer program product comprising program, when it runs on computers
When, so that computer executes method described in above-mentioned various aspects.
7th aspect, the embodiment of the present application also provides a kind of communication systems, including the third aspect or the third aspect to appoint
The communication device of any one possible design of communication device, fourth aspect or the fourth aspect of a kind of possible design of anticipating.
By method provided by the present application, unnecessary re-transmission in communication system is can be effectively reduced in device and system, section
About downlink transfer resource.
Detailed description of the invention
Fig. 1 describes communication construction schematic diagram provided by the embodiments of the present application；
Fig. 2 is a kind of flow chart of the exchange method of data transmit-receive provided by the embodiments of the present application；
Fig. 3 is the schematic diagram of communication device provided by the embodiments of the present application；
Fig. 4 is the schematic diagram of communication device provided by the embodiments of the present application；
Fig. 5 is the schematic diagram of communication device provided by the embodiments of the present application；
Fig. 6 is the schematic diagram of communication device provided by the embodiments of the present application；
Fig. 7 is the schematic diagram of communication system provided by the embodiments of the present application；
Specific embodiment
In order to keep the purpose, technical solution, beneficial effect of the application clearer, with reference to the accompanying drawing to the reality of the application
The mode of applying is described in further detail.
The technical solution of the embodiment of the present application can be used in communication construction as shown in Figure 1.As shown in Figure 1, communication frame
It include at least two network equipments and a terminal in structure.E.g., including two network equipments, respectively network equipment A and net
Network equipment B and terminal.Terminal can receive multiple network equipments simultaneously and pass through Physical Downlink Shared Channel (Physical
DownlinkShared Channel, PDSCH) send data, and terminal have SIC receive ability.Wherein, terminal has
SIC receives ability and refers to that terminal can gradually subtract the dry of prominent signal in the reception signal that multiple signals form
It disturbs, data decision is carried out to multiple signals in the reception signal.The signal is subtracted if terminal rules out after a signal
It is interfered caused by the reception signal.Terminal carries out the above operation by sequencing of the watt level of multiple signals, that is,
Data decision first is carried out to the biggish signal of power, until eliminating all interference.At least two network equipment passes through
The data that PDSCH is sent can carry out relevant or incoherent merging.
It should be understood that communication construction shown in FIG. 1 can be applied particularly in various communication systems, and such as: global system for mobile telecommunications
System (global system of mobile communication, GSM), CDMA (code division
Multiple access, CDMA), wideband code division multiple access (wideband code division multiple access,
WCDMA), TD SDMA (time division-synchronous code division multiple
Access, TD-SCDMA), Universal Mobile Communication System (universal mobile telecommunication system,
UMTS), LTE system etc., with the continuous development of the communication technology, the technical solution of the application can also be used in future network, and such as the
Five third-generation mobile communication technologies (the fifth generation mobile communication technology, 5G) system
System, is referred to as (new radio, NR) system of newly eating dishes without rice or wine, or can be used for D2D (device to device) system,
M2M (machine to machine) system etc..
The network equipment in the application can be transmission receiving point (transmission reception point, TRP),
It is also possible to base station.It should be pointed out that base station is to refer to the accession in net by one or more sectors and to use on interface in the sky
The equipment of family equipment communication, attribute management of the tunable to air interface.For example, the base station can be as in GSM or CDMA
Base station be also possible to the base station in WCDMA such as base transceiver station (base transceiver station, BTS), such as save
Point B (Node B), can also be the evolved base station in LTE system, such as the node B (eNode B) of evolution, can also be 5G system
Base station in system, such as the base station in gNode B or future network.
Terminal (terminal) may include or the user equipment that is otherwise known as (user equipment, UE), terminal device
(terminal equipment), mobile station (mobile station, MS), mobile terminal (mobile terminal), subscriber
Unit (subscriber unit, SU), subscriber station (subscriber station, SS), movement station (mobile station,
MB), distant station (remote station, RS), access point (access point, AP), remote terminal (remote
Terminal, RT), access terminal (access terminal, AT), user terminal (user terminal, UT), user agent
(user agent, UA) or user apparatus (user device, UD) etc., the application is without limitation.The terminal device can refer to
Wireless terminal, catv terminal.The wireless terminal can be directed to user and provide the equipment of voice and/or data connectivity, have
The handheld device of wireless connecting function or other processing equipments for being connected to radio modem can wirelessly be connect
Networking (radio access network, RAN) is communicated with one or more core nets.For example, the terminal device can be with
It is mobile terminal, such as mobile phone (or be " honeycomb " phone) and the computer with mobile terminal, can also be portable
Formula, pocket, hand-held, built-in computer or vehicle-mounted mobile device, such as personal communication service (personal
Communication service, PCS) phone, wireless phone, Session initiation Protocol (session initiation
Protocol, SIP) phone, wireless local loop (wireless local loop, WLL) stand, personal digital assistant
(personal digital assistant, PDA) etc., they exchange language and/or data with wireless access network.
In the multithread NC-JT scene of non-ideal passback, as shown in Figure 1, network equipment A and network equipment B are one jointly
A terminal service, they are independently of each other scheduled terminal, send downlink data to terminal.Each network equipment can be with
One or more data blocks are sent to terminal.Terminal can be identified (identity, ID) or quasi- co-located by cell identity
(quasi-co-located, QCL) distinguishes network equipment A and network equipment B.
Below in the application some nouns or sentence be illustrated:
Signified data block includes transmission block (transport block, TB) in the application, and in other words, data block again may be used
To be interpreted as TB.And code word (codeword, CW) can be understood as successively carrying out cyclic redundancy check (cyclic to TB
Redundancy check, CRC) it is inserted into, is divided into code block (code block, CB), each CB after segmentation is inserted into
CRC, channel coding, the data code flow obtained after rate-matched.One CW and a TB are to corresponding.It, can also be by TB points in NR
Multiple CB after cutting are grouped, and form at least one CBG, include at least one CB in each code block group.
The network equipment sends data block to terminal, and terminal device due to various reasons, such as receives other equipment and interfered
Greatly, fail to receive the data block, or fail correctly to demodulate the data block, get the content in the data block, this
When, which is properly termed as receiving the data block of mistake, and is properly termed as the data block of reception failure, corresponding, it may be said that
Terminal is to the data block reception mistake.In the prior art, terminal needs the network equipment to feed back NACK, to request the network
Equipment retransmits the data block.
The network equipment corresponding with data block involved in the application, is directed to terminal and sends the network of the data block to set
It is standby.
Re-transmission refers to that transmitting terminal after a certain period of time, sends to receiving end be somebody's turn to do again after sending data to receiving end
Data.The concrete mode of re-transmission can merge (chase combining, CC) and incremental redundancy with reference to additional
Modes such as (incremental redundancy, IR).For example, the bit information of re-transmission is believed with bit when just passing in CC
Manner of breathing is same, and the bit information retransmitted in IR does not need and just passes Shi Xiangtong, but can generate the collection of multiple coded-bits
It closes, the set of each coded-bit carries identical information, when transmitting terminal needs to retransmit, it will usually send and preceding primary
Different coded-bit set when transmission, receiving end can merge the data of re-transmission with the preceding data once sent.
HARQ is that one kind combines forward error correction (forward error correction, FEC) and automatic repeat request
The technology of (automatic repeat request, ARQ) method.FEC enables receiving end to correct by addition redundancy
A part of mistake, to reduce number of retransmissions.For the mistake that FEC can not be corrected, receiving end can be sent out by ARQ mechanism request
Sending end retransmission data.Receiving end uses error-detecging code, such as CRC, to detect whether the data packet received malfunctions.If error-free,
Receiving end can send ACK, after transmitting terminal receives ACK, can then send next data packet.If error, receiving end is sent
NACK is to transmitting terminal, after transmitting terminal receives NACK, can retransmit the data packet.
In LTE system, terminal needs anti-to network equipment corresponding with its to each data block for receiving mistake
NACK is presented, to request the corresponding network equipment to be retransmitted.As the performance of terminal is continuously improved, for there is SIC to receive ability
Terminal because terminal will increase after successfully solving one of data block correctly solves the ability of remaining data block, at this time
Terminal can not require all to retransmit all data blocks for receiving mistake.
The reference signal that terminal can be sent according to the network equipment carries out the measurement of the channel status between the network equipment,
And relevant channel state information (channel state information, CSI) is fed back to the network equipment.The network equipment
According to the CSI that terminal is fed back, downlink resource distribution is carried out to the terminal, and realize data transmission in down channel and the terminal.
The embodiment of the present application gives a kind of data block retransmissions scheme, in the case where terminal receives multiple data blocks simultaneously, if there is
More than or equal to two data block reception mistakes, terminal can be according to the network equipments corresponding with the data block for transmitting and receiving mistake
The one of data block for receiving mistake of channel state measurement result selection retransmitted, other data blocks for receiving mistake
It does not retransmit.For example, terminal can determine in sending the corresponding network equipment of data block for receiving mistake with best
Then the network equipment corresponding to channel state measurement result selects the network equipment to retransmit the data block that it sends.
In the embodiment of the present application, in the case where at least two data block reception mistakes, a data block is selected to be retransmitted, reduced
The number of transmissions of data block, has saved downlink transfer resource.
As shown in Fig. 2, embodiments herein provides a kind of exchange method of data transmit-receive.Below with shown in FIG. 1
It is illustrated for the corresponding scene of communication construction.It should be pointed out that also may include the network greater than two in the framework
Equipment.The embodiment of the present application can also be applied to a network equipment and send the scenes of multiple data blocks, at this point, terminal can be with
The data block that one in the multiple data block for selecting a network equipment to send retransmits as needs.On either
Which kind of scene is stated, those skilled in the art is appreciated that the technical solution for how realizing the embodiment of the present application description, this Shen
It please repeat no more.
202: terminal receives the M data block that the network equipment is sent, and has N number of data block reception wrong in the M data block
Accidentally, wherein M, N are integer, and M >=N >=2.
In Fig. 1, network equipment A and network equipment B carry out independent scheduling to terminal.Namely network described in step 202
Equipment includes network equipment A and network equipment B.At a time or in certain a period of time, terminal receive network equipment A and
The data block 0 and data block 1 that network equipment B is sent respectively.That is, the value of M is 2 at this time.
Terminal carries out the processing such as demodulating to data block 0 and data block 1 respectively, to obtain in data block 0 and data block 1
Hold.There are three types of possible for the result of operation:
The first, data block 0 and data block 1 are all correctly processed, that is, terminal successfully obtains data block 0 and data block 1
In content.At this point, terminal respectively to network equipment A and network equipment B feeding back ACK, and can be carried out according to the prior art
Follow-up process；
Second, for example, data block 0 is correctly processed, terminal successfully obtains the content in data block 0, and data block 1 is not
It is correctly processed, the content in data block 1 has not been obtained in terminal.At this point, terminal still can be according to the prior art, respectively to net
Network equipment A feeding back ACK feeds back NACK to network equipment B, is retransmitted by network equipment B to data block 1, and carry out subsequent stream
Journey；
The third, data block 0 and data block 1 are not all correctly processed, that is, data block 0 and data block 1 has not been obtained in terminal
In content.The scene that the application step 202 includes belongs to the third possibility, namely 2 data block reception mistakes at this time,
That is the N=2 in M=2.
The third may under, terminal can cache reception signal, and receiving signal is the process that heterogeneous networks equipment is sent
The sum of data block and the noise of receiving end are reached after channel.
204: terminal instruction and destination network device corresponding to a data block in N number of data block retransmit institute
State a data block.
By step 202 it is found that N number of data block includes data block 0 and data block 1, network corresponding with data block 0
Equipment is network equipment A, and the network equipment corresponding with data block 1 is network equipment B.
The data block that terminal selects a data block for receiving mistake to need to retransmit as next data transfer cycle,
That is, selecting a data block for needing to retransmit as next data transfer cycle in data block 0 and data block 1.Optionally,
The reference signal that terminal is sent according to network equipment A and network equipment B respectively correspond with network equipment A and network equipment B
Channel channel quality measurement, be based on measurement result, select the two in relatively high CQI channel or have
The channel of relatively high SINR, corresponding data block need the data block retransmitted as next data transfer cycle.For example,
The corresponding data block of channel with higher CQI value is data block 0, then terminal selects data block 0 to transmit as next data
Period needs the data block retransmitted.
Then, terminal indicates network equipment A corresponding with data block 0, retransmits the data block 0.With N number of data block
In a data block corresponding to destination network device in the present embodiment be network equipment A.
About the concrete mode of terminal instruction, will be unfolded to describe in the following embodiments.
Optionally, terminal feeds back NACK to network equipment A, feeds back NACK to network equipment B.
206: destination network device retransmits one data block according to the instruction of terminal.
If before narrated, destination network device is network equipment A in the embodiment of the present application.
In the embodiment of the present application, unlike the prior art, when network equipment A is in the NACK for receiving terminal transmission
When, it does not represent it and needs when next time to terminal transmission data namely next data transfer cycle re-transmitting data block 0, net
When network equipment A needs to receive the instruction of terminal, it just can confirm that it when next time to terminal transmission data namely next data
Transmission cycle re-transmitting data block 0.
In the embodiment of the present application, network equipment A has received the instruction that terminal log is retransmitted according to block 0, then network equipment A needs
When next time to terminal transmission data namely next data transfer cycle retransmits data block 0.Network equipment A logarithm
It is referred to the prior art according to the mode that block is retransmitted, details are not described herein again.
Even if, due to not receiving the instruction of terminal, network is set in addition, receiving the NACK of terminal transmission for network equipment B
Standby B wouldn't retransmit data block 1 within the period next time to terminal transmission data.Optionally, network equipment B will be counted
It is buffered in buffer area according to block 1, and is having new data block, such as data block 3, it, can be next when needing to be sent to terminal
It is secondary to terminal transmission data when namely next data transfer cycle send data block 3 to terminal.For data block 1, if subsequent
The ACK that terminal is directed to data block 1 is had received, then the data block 1 cached in both the buffers is emptied, if subsequent be received again by terminal
It, then can be with re-transmitting data block 1 for the NACK of data block 1.
As a kind of implementation, after terminal has received data block 0 of network equipment A re-transmission, to the re-transmission
Data block carry out the processing such as demodulating, to obtain the content of the data block 0 of the re-transmission.Optionally, terminal can with receive before
Data block 0, i.e., the data block 0 that receives in step 202 carries out HARQ soft merging, i.e., with the signal that caches before (re-transmission
Data block 0 and the data block 0 cached before can correspond to different redundancy versions) it merges, it is intended to obtain data block 0
Content.It should be noted that the use of HARQ soft merging will will increase the probability of terminal successful data reception block 0.If terminal
The content of data block 0 is got, the SIC ability that can further have using it is come again to number received in step 202
It carries out the processing such as demodulating according to block 1, to attempt to obtain the content in data block 1.If terminal gets the content of data block 1, base
In this, terminal is directed to data block 0 and data block 1 to network equipment A and network equipment B difference all feeding back ACKs.If terminal is still
Fail to obtain the content of data block 1, then terminal for data block 0 to network equipment A feeding back ACK, for data block 1 to network
Equipment B feeds back NACK.At this point, as previously mentioned, network equipment B can choose retransmits to data block 1.
If terminal remains as the content for getting data block 0, at this point, terminal is set for data block 0 and data block 1 to network
Standby A and network equipment B feeds back NACK respectively, without any additional instruction, then network equipment A and network and equipment
B distinguishes re-transmitting data block 0 and data block 1 according to the scheme of the prior art.
In the embodiment of the present application, if the data block that terminal receives mistake is more than or equal to two, terminal selection receives wrong
One of data block of data block accidentally is retransmitted.Terminal utilizes SIC performance after demodulating the data block of re-transmission
Restore the data block not retransmitted still that terminal receives mistake, thus by data block during terminal receives data block
Number of retransmissions reduces, and has saved downlink transfer resource.
In addition, it is necessary to illustrate, in the embodiment of the present application, when the value of N is more than or equal to 3, terminal be can also indicate that greatly
It is retransmitted in one data block, for example, at a time or in certain a period of time, terminal receives net in step 202
The data block 01 and data block 02 that network equipment A is sent, terminal receive the data block 10 that network equipment B is sent, i.e. the value of M is
3, and data block 01, data block 02 and data block 10 receive mistake namely N=3.At this point, similar with step 204, terminal can
To indicate network equipment A corresponding with data block 01 and data block 02, re-transmitting data block 01 and data block 02.At this point, realizing this
Apply for that other steps of the technical solution of embodiment are similar with previous embodiment, those skilled in the art can be without wound
The property made obtains the technical solution under the premise of working, therefore repeats no more.
The concrete mode indicated below terminal in step 204 in Fig. 2 embodiment, does specific introduction.Remaining the step of
The statement being referred in Fig. 2 is implemented, details are not described herein again.
As a kind of implementation, the terminal sends information to the destination network device, and the information is used to indicate
The destination network device retransmits one data block.
Namely in Fig. 2 embodiment, terminal sends information to network equipment A, and the information is used to indicate network equipment A,
Re-transmitting data block 0.
Specifically, terminal can transmit this instruction information to network equipment A by the field of carrying in the message.This disappears
Breath can be existing message, or the message newly defined.
In conjunction with Fig. 2 embodiment, terminal can all send the message to the network equipment A and B, include a word in the message
Section.Assuming that the field is 1 bit, when the bit is " 1 ", counterpart terminal has sent instruction letter to the network equipment
Breath.That is, in the present embodiment, the value of the bit should be " 1 " in the message that network equipment A is received, it is used to indicate net
Network equipment A re-transmitting data block 0, although and network equipment B also has received the message, because of the bit of the message
Value is " 0 ", therefore is not considered as to have received the instruction information.It should be noted that when specific implementation bit can also be being worked as
When for " 0 ", counterpart terminal has sent the instruction information to the network equipment, and the application is with no restrictions.In another example relative to upper one
Secondary terminal sends the message to the network equipment A and B, and when the bit is not overturn, counterpart terminal has sent to the network equipment
The instruction information.Namely in the present embodiment, in the message that network equipment A is received the value of the bit there is no overturning,
Be used to indicate network equipment A re-transmitting data block 0, although and network equipment B also has received the message, because of the message
Bit overturn, therefore be not considered as to have received the instruction information.Wherein, overturning refers to receives relative to the last time
The message, the value of the bit becomes " 0 " from " 1 " or becomes " 1 " from " 0 ".It should be noted that when specific implementation,
Can be when bit be that overturning has occurred, counterpart terminal has sent the instruction information to the network equipment, and the application does not limit
System.
It is further noted that the bit of the field can be not only 1 bit, it can also be 2 bits, can be
4 bits etc., it is numerous to list herein.
In NR system, as previously mentioned, multiple CB after can also dividing TB are grouped, at least one CBG is formed,
It include at least one CB in each code block group.Therefore, CBG grades of re-transmission can be supported in NR system, i.e., when a data block connects
When receiving mistake, the one or more CBG for receiving mistake in the data block are only retransmitted, rather than retransmit entire data block.Namely
Say the data block for needing to retransmit, actually at least one CBG is retransmitted in the data block, which is
Terminal receives the CBG of mistake.And if as do not need retransmit data block, then be equivalent to data all in the data block
Block does not all need to retransmit.
It may is that based on this as the concrete mode of another terminal instruction
The HARQ feedback that terminal carries out CBG grades for the data block of its transmission to the network equipment (indicates respectively each CBG
Receive successfully perhaps wrong) in feeding back ACK or NACK, a bit is increased newly in the bit map bitmap that uses,
Be used to indicate the network equipment next time to terminal transmission data when namely next data transfer cycle whether data block is carried out
It retransmits.For example, if the value of the bit is " 1 ", then it represents that the data block needs to retransmit；If the value of the bit is 0,
Then indicate that the data block does not need to retransmit.Vice versa.That is, in the present embodiment, it is anti-that network equipment A receives terminal
The NACK of feedback, and will include a newly-increased bit in the corresponding bitmap used, value are " 1 ", and counterpart terminal is to net
Network equipment A has sent information, is used to indicate and retransmits to data block 0.And network equipment B receives the NACK of terminal feedback, and
And will include a newly-increased bit in the corresponding bitmap used, value is " 0 ", therefore is not considered as that terminal is set to network
Standby B has sent the information that instruction retransmits, then network equipment B is when next time to terminal transmission data namely next data pass
The defeated period does not need to retransmit data block 1.
For terminal, in this implementation, by the new of the corresponding CBG of data block 0 of the selection bitmap fed back
Increasing bit position is 1, and it is anti-to insert the corresponding CBG of data block 0 to the information whether each CBG of data block 0 needs to retransmit
In the bitmap of feedback；The bitmap added bits position of CBG feedback corresponding for data block 1 is 0, and to each of data block 1
In the bitmap for the information filling corresponding CBG of data block 0 feedback whether CBG needs to retransmit.
For network equipment A or network equipment B, in the more bit feedbacks for receiving CBG, its bitmap used is checked
Added bits position, for network equipment A, the value of the added bits position is " 1 ", then retransmits that the data block 0 is inner to be needed to retransmit
CBG；For network equipment B, the value of the added bits position is " 0 ", then the inner CBG for needing to retransmit of caching data block 1,
New data block 3 can be transmitted.The CBG that needs retransmit inner for data block 1, until after receiving ACK corresponding with these CBG, then
The corresponding caching of these CBG is emptied, if network equipment B receives more bits of the face CBG before the ACK for receiving the CBG
The value for feeding back the bitmap added bits position used is changed to " 1 ", then retransmits the inner CBG for needing to retransmit of the data block 1.
The embodiment of the present application realizes CBG grades in NR system of re-transmission.In the NR network system that CBG grades retransmit,
GNode B according to the newly-added information in bitmap in the data block of selected re-transmission the CBG of re-transmission in need retransmit.
Further, if terminal indicates that the data block is retransmitted, the network equipment is obtained receiving in the data block and be lost according to bitmap
The CBG lost, and these CBG are retransmitted.If terminal indicates that the data block does not retransmit, the network equipment owns in the CW
CBG is not retransmitted.Therefore for the embodiment of the present application in NR network system, terminal indicates that the network equipment receives mistake to terminal
CBG is retransmitted, and the unnecessary data that can receive correct CBG to terminal to avoid the network equipment retransmit, and is saved downlink and is passed
Defeated resource.
It should be noted that should can be superimposed based on CBG grades of indicating mode applied to any one terminal in the application
The mode of instruction.
It, can be with as the concrete mode of another terminal instruction are as follows: terminal with the predefined HARQ of the network equipment by disappearing
The new meaning of breath, come the data block for helping terminal instruction to need to retransmit.The network equipment can be to provide service for terminal
Master network device, be also possible to the destination network device, the destination network device can be the master in some scenes certainly
The network equipment.It should be noted that the master network device in the embodiment of the present application, refers to the net for establishing initial connection with terminal
Network equipment, or time domain terminal carry out RRC connection reconstruction the network equipment, or in handoff procedure specify the network equipment.
Specifically, currently about the corresponding two kinds of message fed back of HARQ: ACK (the i.e. expression successful shape of transmission of data blocks
State) and NACK (i.e. the state of expression transmission of data blocks failure), the value of the corresponding bit of the message of HARQ feedback can be distinguished
Correspond to " 1 " and " 0 ".In the embodiment of the present application, a kind of empty (null) response can be increased newly, corresponding HARQ instance is fed back at this time
It is 0 that power is sent on the bit of message.Terminal can with the network equipment by way of making an appointment, such as it is predefined with
NACK is used to indicate terminal to corresponding data block reception mistake and at the same time instruction network is set in upper three kinds of feedback messages
It is standby that the data block is retransmitted, namely can consider NACK contain be used to indicate the network equipment retransmit it is corresponding with the NACK
The information of data block.Empty response is used to indicate the corresponding data block terminal of the network equipment and receives mistake, next time to terminal
When transmitting data namely next data transfer cycle network equipment is without retransmitting data block corresponding with empty response.ACK is then and existing
There is meaning represented in technology consistent, is used to indicate the corresponding data block terminal of the network equipment and receives successfully.
Such as Fig. 2 embodiment, the NACK that the terminal that network equipment A is received is sent is used to indicate terminal log according to block 0
Mistake is received, and indicates that network equipment A retransmits data block 0.And what network equipment B was then detected is sky response, although namely
This receives mistake to data block 1 with terminal device, but is temporarily not necessarily to re-transmitting data block 1.
The corresponding meaning of three of the above HARQ feedback message can of course be swapped, for example, the response that makes to have leisure is used for
Indicate the network equipment retransmit with the information of the NACK corresponding data block so as to be used to indicate the network equipment corresponding by NACK
Data block terminal receives mistake, next time to terminal transmission data when namely next data transfer cycle network equipment without weight
Pass data block corresponding with empty response.ACK is then consistent with represented meaning in the prior art, be used to indicate the network equipment with
Its corresponding data block terminal receives successfully.As long as terminal is consistent with LA Management Room agreement, the embodiment of the present application is to this
With no restrictions.
Optionally, can also correspond to three of the above HARQ feedback message using two bits, such as 00 indicates sky response, 01
It is expressed as ACK, 10 indicate NACK.The embodiment of the present application is not excluded for other representations.
The embodiment of the present application does not need to increase additional field or uplink biography by the meaning of agreement HARQ feedback message
Defeated resource, so that it may realize that terminal designation date block retransmits.
As the concrete mode of another terminal instruction, the resource that the terminal is distributed by the network equipment indicates target
The network equipment retransmits one data block.The network equipment can be one dedicated resource of terminal distribution, and terminal can pass through
Whether the private resource, the instruction network equipment need to retransmit the certain data block that it sends.Optionally, the network
Equipment can be to provide the master network device of service for terminal, namely unified distribution is carried out by master network device, is also possible to
The destination network device.Below using the network equipment as destination network device, it is illustrated.In Fig. 2 embodiment, network
Equipment A is terminal distribution private resource 1, and terminal can feed back NACK to network equipment A for data block 0, and in about timing
Between in 1, in the form of not sending any signal in resource 1, instruction network equipment A retransmits data block 0.Network is set
Standby B is terminal distribution private resource 2, and terminal can feed back NACK to network equipment B for data block 1, and in the designated time
In 2, signal is sent in resource 2, at this time it is considered that network equipment B next time to terminal transmission data when namely next number
Data block 1 is not retransmitted temporarily according to transmission cycle.
It should be noted that terminal can also be by sending the mode of signal in resource 1, referring in 1 section of the designated time
Show the re-transmission of data block 0.At this point, then counterpart terminal does not send any signal in resource 2 in designated time section.
In the embodiment of the present application, if the data number of blocks that terminal receives mistake is more than or equal to two, terminal indicates net
Network equipment one data block of selection from the data block for receiving mistake is retransmitted.When data block does not need to retransmit, terminal is logical
The resource for crossing network equipment distribution sends signal, and when data block needs to retransmit, terminal does not send signal, and the network equipment passes through
The presence or absence of signal on running time-frequency resource, the data block retransmitted to needs retransmit, can be with saving signaling expense.
In addition to technical solution described in above-mentioned Fig. 2 embodiment, when end-error receives the data block that the network equipment is sent
When quantity is more than or equal to two, being semi-statically configured for rrc layer can also be carried out according to the channel quality information of data block, for example,
There is the master network device of service and terminal to carry out the semi-static configuration.The network equipment is again according to the semi-static configuration information
Decide whether to retransmit data block.
Description in detail below:
As shown in Figure 1, it is assumed that there are network equipment A and network equipment B in the multithread NC-JT scene of non-ideal passback, if
Network equipment A is the network equipment that foundation is connect with terminal initial, or the network equipment of RRC connection reconstruction is carried out with terminal, or
It is the network equipment specified in handoff procedure, then it is assumed that network equipment A master network device, the network equipment supplemented by network equipment B.
Terminal can carry out channel quality measurement for transmission channel corresponding with network equipment A and network equipment B respectively,
CSI1 and CSI2 corresponding with network equipment A and the corresponding transmission channel of network equipment B is obtained, and feeds back to network
Equipment A, CSI1 and CSI2 that network equipment A is fed back according to terminal carry out RRC and be semi-statically configured, and the configuration instruction is when eventually
When the data block 1 that termination has received the data block 0 of network equipment A transmission and network equipment B is sent, next data transmission
How data block retransmissions should be carried out in period.Such as:
1) master network device (network equipment A) retransmits the data block 0 of its transmission.The auxiliary network equipment (network equipment B) does not weigh
The data block 1 for passing its transmission, can be with caching data block 1；Alternatively,
2) the auxiliary network equipment (network equipment B) retransmits the data block 1 of its transmission.Master network device (network equipment A) does not weigh
The data block 0 of its transmission is passed, volume can be with buffered signal data block 0；Alternatively,
3) master network device (network equipment A) retransmits the data block 0 of its transmission, and the auxiliary network equipment (network equipment B) retransmits
Its data block 1 sent.
Wherein, such as when CSI includes CQI, it is believed that between the corresponding network equipment of higher CQI index and terminal
Channel quality it is more preferable, select the network equipment to be retransmitted, corresponding 1) (the channel matter between network equipment A and terminal at this time
Amount is more preferable) or 2) (channel quality at this time between network equipment B and terminal is more preferable)；If the CQI rope of two network equipments
Draw all very low, then (3), i.e., do not use the scheme of the embodiment of the present application, but to terminal receive the data block of decoded in error all into
Row retransmits.
When having selected mode 1) or 2) to be retransmitted, the subsequent operation of terminal and the corresponding network equipment and Fig. 2
Embodiment step 206 is similar, repeats no more.
Based on identical design, as shown in figure 3, being a kind of communication device schematic diagram provided by the present application, the communication device
Can be terminal can also be can be performed and be set in each embodiment of above-mentioned the application by terminal with the chip or system on chip in terminal
The standby method executed.
The communication device 300 includes at least one processor 310, memory 330.
Wherein, memory 330 can be ROM or can store the other types of static information and instruction for storing program
Static storage device such as RAM or the other kinds of dynamic memory of information and instruction can be stored, being also possible to electricity can
Erasable programmable read-only memory (Electrically erasable programmabler-only memory, EEPROM),
CD-ROM (compact disc read-only memory, CD-ROM) or other optical disc storages, optical disc storage (including pressure
Contracting optical disc, laser disc, optical disc, Digital Versatile Disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus,
Or can be used in carry or store have instruction or data structure form desired program and can be by computer access
Any other medium, but not limited to this.Memory 330, which can be, to be individually present, and is connected with processor 310.Memory 330
It can also be integrated with processor 310.
Processor 310 is used to execute the program in memory 330, to realize that the embodiment of the present application determines the side of time-domain resource
Step performed by terminal device in method, correlated characteristic are referred to above, and details are not described herein again.For example, processor 310 can
To be a universal cpu, microprocessor, specific ASIC or one or more for controlling the execution of technical scheme program
Integrated circuit.
In the concrete realization, as one embodiment, processor 310 may include one or more CPU, such as in Fig. 3
CPU0 and CPU1.
In the concrete realization, as one embodiment, communication device 300 may include multiple processors, such as in Fig. 3
Processor 310 and processor 311.Each of these processors can be monokaryon (single-CPU) processor,
Can be multicore (multi-CPU) processor, processor here can refer to one or more equipment, circuit, and/or
For handling the processing core of data (such as computer program instructions).
Optionally, when communication device 300 be terminal device when can also include transceiver 320 as shown in Figure 3, for
Other equipment or communication, transceiver 320 include radio circuit.Wherein processor 310, transmitting-receiving in terminal device
Device 320, memory 330 can be connected by communication bus.Communication bus may include an access, transmit between said units
Information.When device 300 is chip or system on chip in terminal device, processor 310 can be connect by input/output
Mouth, pin or circuit etc. send or receive data.
As shown in figure 4, the schematic diagram of the embodiment of the present application another kind communication device, which can be terminal can also be whole
The method executed in each embodiment of above-mentioned the application by terminal device can be performed in chip or system on chip in end.
The device includes processing unit 401 and Transmit-Receive Unit 402.
Wherein, processing unit 401 is executed in embodiment shown in 402 realization figure of Transmit-Receive Unit by terminal device for controlling
Method.
Based on identical design, as shown in figure 5, being a kind of communication device schematic diagram provided by the present application, the communication device
Such as it can be destination network device, the network equipment, in the chip in destination network device or system on chip or the network equipment
Chip or system on chip, the side executed in each embodiment of the application by destination network device or the network equipment can be performed
Method.
The communication device 500 includes at least one processor 510, memory 530.
Wherein, memory 530 can be ROM or can store the other types of static information and instruction for storing program
Static storage device such as RAM or the other kinds of dynamic memory of information and instruction can be stored, be also possible to
EEPROM, CD-ROM or other optical disc storages, optical disc storage (including compression optical disc, laser disc, optical disc, Digital Versatile Disc,
Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or store have instruction or
The desired program of data structure form and can by any other medium of computer access, but not limited to this.Memory 530
It can be and be individually present, be connected with processor 510.Memory 530 can also be integrated with processor 510.
Processor 510 is used to execute the program in memory 530, and time-domain resource is indicated in the embodiment of the present application to realize
Step performed by the network equipment in method, correlated characteristic are referred to above, and details are not described herein again.For example, processor 510
It can be a universal cpu, microprocessor, specific ASIC or one or more to hold for controlling technical scheme program
Capable integrated circuit.
In the concrete realization, as one embodiment, processor 510 may include one or more CPU, such as in Fig. 5
CPU0 and CPU1.
In the concrete realization, as one embodiment, communication device 500 may include multiple processors, such as in Fig. 5
Processor 510 and processor 511.Each of these processors can be monokaryon (single-CPU) processor,
Can be multicore (multi-CPU) processor, processor here can refer to one or more equipment, circuit, and/or
For handling the processing core of data (such as computer program instructions).
It optionally, can also include as shown in Figure 5 when communication device 500 is destination network device the latter network equipment
Transceiver 520 is used to include radio circuit with other equipment or communication, transceiver 520.Wherein in the network equipment
Middle processor 510, transceiver 520, memory 530 can be connected by communication bus.Communication bus may include an access,
Information is transmitted between said units.When device 500 is chip in the network equipment or when system on the upper side, processor 510 can be with
Data are sent or received by input/output interface, pin or circuit etc..
As shown in fig. 6, the schematic diagram of the embodiment of the present application another kind communication device, the communication device for example can be target
The network equipment, the network equipment, the chip in destination network device or the chip in system on chip or the network equipment or on piece system
The method executed in each embodiment of the application by destination network device or the network equipment can be performed in system.
The communication device includes processing unit 601 and Transmit-Receive Unit 602.
Wherein, processing unit 601 realize in the embodiment of the present application by destination network device for controlling Transmit-Receive Unit 602 or
The method that person's network equipment executes.
It should be understood that it is schematically that only one kind is patrolled that Fig. 4 and communication device shown in fig. 6, which are the mode that module divides,
Function division is collected, there may be another division manner in actual implementation.For example, Transmit-Receive Unit is divided into receiving unit and hair
Send unit etc..
As shown in fig. 7, the communication system includes communication device 300 the embodiment of the present application also provides a kind of communication system
With communication device 500.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer journey
Sequence product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all
Or it partly generates according to process or function described in the embodiment of the present application.The computer can be general purpose computer, dedicated
Computer, computer network or other programmable devices.The computer instruction can store in computer-readable storage
In medium, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, described
Computer instruction can pass through wired (such as coaxial cable, light from a web-site, computer, server or data center
Fine, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer,
Server or data center are transmitted.The computer readable storage medium can be that computer can access it is any can
It either include the data storage devices such as one or more usable mediums integrated server, data center with medium.It is described can
It can be magnetic medium with medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium
(such as solid state hard disk (Solid State Disk, SSD)) etc..
Although the application is described in conjunction with each embodiment herein, however, implementing the application claimed
In the process, those skilled in the art are by checking the attached drawing, disclosure and the appended claims, it will be appreciated that and it is real
Other variations of the existing open embodiment.In the claims, " comprising " (comprising) word is not excluded for other compositions
Part or step, "a" or "an" are not excluded for multiple situations.Claim may be implemented in single processor or other units
In several functions enumerating.Mutually different has been recited in mutually different dependent certain measures, it is not intended that these are arranged
It applies to combine and generates good effect.
It will be understood by those skilled in the art that embodiments herein can provide as method, apparatus (equipment), computer-readable
Storage medium or computer program product.Therefore, complete hardware embodiment, complete software embodiment or knot can be used in the application
They, are all referred to as " module " or " system " by the form of the embodiment in terms of conjunction software and hardware here.
The application is the flow chart and/or box referring to the present processes, device (equipment) and computer program product
Figure describes.It should be understood that each process and/or the side in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in frame and flowchart and/or the block diagram.These computer program instructions be can provide to logical
With the processor of computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate a machine
Device, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for realizing flowing
The device for the function of being specified in journey figure one process or multiple processes and/or block diagrams one box or multiple boxes.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that instruction stored in the computer readable memory generation includes
The manufacture of command device, the command device are realized in one box of one or more flows of the flowchart and/or block diagram
Or the function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer
Or the instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or box
The step of function of being specified in figure one box or multiple boxes.
Although the application is described in conjunction with specific features and embodiment, it is clear that, do not departing from this Shen
In the case where spirit and scope please, it can be carry out various modifications and is combined.Correspondingly, the specification and drawings are only
The exemplary illustration for the application that appended claims are defined, and be considered as covered it is any and all within the scope of the application
Modification, variation, combination or equivalent.Obviously, those skilled in the art can carry out various modification and variations to the application and
Spirit and scope is not departed from.If in this way, these modifications and variations of the application belong to the claim of this application and
Within the scope of its equivalent technologies, then the application is also intended to include these modifications and variations.
Claims (14)
1. a kind of method of data receiver characterized by comprising
Terminal receives the M data block that the network equipment is sent, and has N number of data block reception mistake in the M data block, wherein
M, N is integer, and M >=N >=2；
The terminal instruction and destination network device corresponding to a data block in N number of data block, retransmit described one
A data block.
2. the method according to claim 1, wherein the network equipment includes the destination network device.
3. according to claim 1 or claim 2, which is characterized in that in the terminal instruction and N number of data block
Destination network device corresponding to one data block, retransmits one data block, comprising:
The terminal sends information to the destination network device, and the information is used to indicate the destination network device and retransmits institute
State a data block.
4. according to the method described in claim 3, it is characterised in that it includes the hybrid automatic repeat-request HARQ of the information is anti-
It presents message to be arranged by the terminal and the network equipment, the terminal is by the HARQ feedback message to the target network
Equipment sends the information.
5. the method according to claim 1, wherein terminal instruction and one in N number of data block
Destination network device corresponding to data block retransmits one data block, comprising:
The resource that the terminal is distributed by the network equipment indicates that the destination network device retransmits one data
Block.
6. a kind of method that data are sent characterized by comprising
Destination network device sends data block to terminal, and the data block is the M data that the network equipment is sent to the terminal
One in N number of data block of mistake is received in block, wherein M, N are integer, and M >=N >=2；
The destination network device retransmits the data block according to the instruction of the terminal.
7. according to the method described in claim 6, it is characterized in that, the network equipment includes the destination network device.
8. according to method described in claim 6 or 7, which is characterized in that the destination network device is according to the terminal
Instruction, retransmits the data block, comprising:
The destination network device receives the information that the terminal is sent, and the information is used to indicate the destination network device weight
Pass the data block.
9. according to the method described in claim 8, it is characterised in that it includes the hybrid automatic repeat-request HARQ of the information is anti-
It presents message to be arranged by the terminal and the network equipment, it is anti-by the HARQ that the destination network device receives the terminal
Present the information that message is sent.
10. according to the method described in claim 6, it is characterized in that, the destination network device according to the instruction of the terminal,
Retransmit the data block, comprising:
Instruction of the destination network device according to the terminal in the resource that the network equipment distributes to the terminal, weight
Pass the data block.
11. a kind of communication device characterized by comprising processor and memory；
Wherein, the memory, for storing program；
The processor, for executing the described program stored in the memory, to realize such as any institute of claim 1 to 5
State method.
12. a kind of communication device characterized by comprising processor and memory；
Wherein, the memory, for storing program；
The processor, for executing the described program stored in the memory, to realize such as any institute of claim 6 to 10
State method.
13. a kind of communication system, which is characterized in that including communication device as claimed in claim 11, and such as claim 12
Shown in communication device.
14. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has program, institute
When stating program and running on computers, so that the computer executes the method as described in claims 1 to 10 is any.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332008.8A CN109921884B (en) | 2017-12-13 | 2017-12-13 | Data receiving and transmitting method, device and communication system |
| PCT/CN2018/120470 WO2019114730A1 (en) | 2017-12-13 | 2018-12-12 | Data receiving and transmission method and device, and communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332008.8A CN109921884B (en) | 2017-12-13 | 2017-12-13 | Data receiving and transmitting method, device and communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109921884A true CN109921884A (en) | 2019-06-21 |
| CN109921884B CN109921884B (en) | 2022-04-12 |
Family
ID=66820166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711332008.8A Active CN109921884B (en) | 2017-12-13 | 2017-12-13 | Data receiving and transmitting method, device and communication system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109921884B (en) |
| WO (1) | WO2019114730A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114731230A (en) * | 2019-11-28 | 2022-07-08 | 华为技术有限公司 | Data transmission method and device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114762366B (en) * | 2019-11-29 | 2023-09-01 | 华为技术有限公司 | Downlink transmission method and communication device |
| CN115913473B (en) * | 2023-02-21 | 2023-05-12 | 深圳云豹智能有限公司 | Data selective retransmission method and system, storage medium and electronic equipment thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043303A (en) * | 2006-03-20 | 2007-09-26 | 华为技术有限公司 | Method and system for mixed retransmission in multi-input multi-output communication system |
| US20080069074A1 (en) * | 2006-09-18 | 2008-03-20 | Interdigital Technology Corporation | Successive interference cancellation for multi-codeword transmissions |
| CN101873631A (en) * | 2009-04-27 | 2010-10-27 | 中兴通讯股份有限公司 | Processing method and system for uplink data retransmission |
| CN103346869A (en) * | 2013-06-19 | 2013-10-09 | 华为技术有限公司 | Data receiving method and device |
| CN104796233A (en) * | 2009-02-18 | 2015-07-22 | Idtp控股公司 | Retransmitting method and communication equipment for retransmission |
| CN107370559A (en) * | 2016-05-13 | 2017-11-21 | 中兴通讯股份有限公司 | The feedback method and device of channel condition information |
| US20180205431A1 (en) * | 2017-01-16 | 2018-07-19 | At&T Intellectual Property I, L.P. | Single codeword, multi-layer serial interference cancellation (sic) for spatial multiplexing |
-
2017
- 2017-12-13 CN CN201711332008.8A patent/CN109921884B/en active Active
-
2018
- 2018-12-12 WO PCT/CN2018/120470 patent/WO2019114730A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043303A (en) * | 2006-03-20 | 2007-09-26 | 华为技术有限公司 | Method and system for mixed retransmission in multi-input multi-output communication system |
| US20080069074A1 (en) * | 2006-09-18 | 2008-03-20 | Interdigital Technology Corporation | Successive interference cancellation for multi-codeword transmissions |
| CN104796233A (en) * | 2009-02-18 | 2015-07-22 | Idtp控股公司 | Retransmitting method and communication equipment for retransmission |
| CN101873631A (en) * | 2009-04-27 | 2010-10-27 | 中兴通讯股份有限公司 | Processing method and system for uplink data retransmission |
| CN103346869A (en) * | 2013-06-19 | 2013-10-09 | 华为技术有限公司 | Data receiving method and device |
| CN107370559A (en) * | 2016-05-13 | 2017-11-21 | 中兴通讯股份有限公司 | The feedback method and device of channel condition information |
| US20180205431A1 (en) * | 2017-01-16 | 2018-07-19 | At&T Intellectual Property I, L.P. | Single codeword, multi-layer serial interference cancellation (sic) for spatial multiplexing |
Non-Patent Citations (3)
| Title |
|---|
| AT&T: "Remaining details on supporting multi-TRP transmission and reception，R1-1716165", 《3GPP TSG RAN WG1 MEETING NR#3》 * |
| GUANGDONG OPPO MOBILE TELECOM: "On NR Multi-TRP and Multi-panel Transmission，R1-1715695", 《3GPP TSG RAN WG1 MEETING NR#3》 * |
| QUALCOMM EUROPE: "MIMO proposal for MIMO-WCDMA evaluation，R1-050912", 《3GPP TSG-RAN WG1 #42》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114731230A (en) * | 2019-11-28 | 2022-07-08 | 华为技术有限公司 | Data transmission method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019114730A1 (en) | 2019-06-20 |
| CN109921884B (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11219049B2 (en) | Method and apparatus for transmitting and receiving signal in mobile communication system | |
| RU2746224C1 (en) | Method and equipment for transmission and reception of signal in mobile communication system | |
| KR102568176B1 (en) | Method and apparatus for transmitting HARQ-ACK/NACK in wireless communication system | |
| CN110235398B (en) | Method for receiving and performing partial retransmission, and related wireless device and network node | |
| JP6651533B2 (en) | Soft buffer management for extended carrier aggregation | |
| JP5710795B2 (en) | Bundling of ACK information in a wireless communication system | |
| CN108365922B (en) | Method, device and system for feedback | |
| US10623150B2 (en) | Control information transmission method, user equipment, and base station | |
| JP7493636B2 (en) | Radio network node, radio device and method performed therein | |
| WO2017045138A1 (en) | Method for sending control information and communication device | |
| CN107682129B (en) | HARQ feedback processing method, HARQ transmission processing method and HARQ feedback processing device | |
| CN107210866A (en) | Efficient ACK/NACK transmission | |
| JP2018515004A (en) | Method, user equipment, and base station for transmitting control information | |
| CN104348604A (en) | Method of Handling Communication Operation and Related Communication Device | |
| WO2019004536A1 (en) | Method and device for efficient harq operation | |
| CN108809499A (en) | Communication means and device | |
| CN108809530A (en) | A kind of transmission method, terminal device and base station | |
| CN108270525A (en) | Redundancy versions transmission method and equipment | |
| CN109921884A (en) | The method, apparatus and communication system of data transmit-receive | |
| CN104579579B (en) | A kind of big data package transmission method and system | |
| CN109478958B (en) | Data transmission method, equipment and system | |
| CN109314590A (en) | The method and apparatus of uplink | |
| US11271686B2 (en) | Hybrid automatic repeat request acknowledgement and upload multiuser operation | |
| JP6635835B2 (en) | Data retransmission method and apparatus | |
| US11166284B2 (en) | Data transmission method, terminal, and base station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |