CN110022615A - A kind of data transmission method, device, equipment and computer readable storage medium - Google Patents

A kind of data transmission method, device, equipment and computer readable storage medium Download PDF

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Publication number
CN110022615A
CN110022615A CN201810014887.8A CN201810014887A CN110022615A CN 110022615 A CN110022615 A CN 110022615A CN 201810014887 A CN201810014887 A CN 201810014887A CN 110022615 A CN110022615 A CN 110022615A
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China
Prior art keywords
information
trp
sent
transmission
transmission block
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CN201810014887.8A
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CN110022615B (en
Inventor
缪德山
高秋彬
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201810014887.8A priority Critical patent/CN110022615B/en
Priority to PCT/CN2018/122001 priority patent/WO2019134512A1/en
Publication of CN110022615A publication Critical patent/CN110022615A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides a kind of data transmission method, device, equipment and computer readable storage medium, is related to field of communication technology, to improve data reliability and reduce time delay.Data transmission method of the invention include: when determine user equipment (UE) in multiple transmission receiving point TRP transmitting data packets, determine be used for present data transmission redundancy versions RV information；Determine the corresponding scheduling control information of multiple TRP；To UE instruction transmission block instruction information and the RV information, whether the data packet that the transmission block instruction information is used to indicate the multiple TRP corresponds to identical transmission block TB；The data packet of the multiple TRP is sent to the UE using the scheduling control information.The present invention can be improved data reliability and reduce time delay.

Description

A kind of data transmission method, device, equipment and computer readable storage medium
Technical field
The present invention relates to field of communication technology more particularly to a kind of data transmission method, device, equipment and computer-readable Storage medium.
Background technique
In 5G NR (New Radio, newly eat dishes without rice or wine) system, in order to improve the peak of UE (User Equipment, user equipment) It is worth rate and system ovelay range, multiple TRP (Transmission Reference Point, transmission reference point) can be used Carry out data transmission.In order to improve the reliability of downlink transfer, multiple TRP can transmit identical data-signal and carry out diversity hair It send.In URLLC (Ultra-Reliable and Low-Latency Communications, low time delay, high reliable communication) field Under scape, the reliability and time delay of data require to meet as far as possible, therefore the combination of the transmission of URLLC and more TRP is one important Research topic.
LTE (Long Term Evolution, long term evolution) and NR technology all support more TRP to transmit, but existing more The TRP transmission method problem larger there are still data reliability difference and time delay.
Summary of the invention
In view of this, the present invention provides a kind of data transmission method, device, equipment and computer readable storage medium, with It improves data reliability and reduces time delay.
In order to solve the above technical problems, in a first aspect, the embodiment of the present invention provides a kind of data transmission method, applied to net Network side apparatus, comprising:
When determining user equipment (UE) in multiple transmission receiving point TRP transmitting data packets, determine for current data biography Defeated redundancy versions RV information；
Determine the corresponding scheduling control information of multiple TRP；
To UE instruction transmission block instruction information and the RV information, the transmission block instruction information is used to indicate institute Whether the data packet for stating multiple TRP corresponds to identical transmission block TB；
The data packet of the multiple TRP is sent to the UE using the scheduling control information.
Wherein, the determination is used for the redundancy versions RV information of present data transmission, comprising:
According to pre-set RV circle transmission mechanism, the RV information for being used for present data transmission is determined.
Wherein, described according to pre-set RV circle transmission mechanism, determine the RV information for being used for present data transmission, packet It includes:
It is described more when the number of TRP in the multiple TRP is less than or equal to the RV number in the RV version set A TRP successively selects different RV index RV index in RV version set predetermined；As TRP in the multiple TRP Number be greater than the RV version set in RV number when, the N using the method for recycling, from the multiple TRP A TRP starts, and since first RV index in the RV version set, successively selects again in the RV version set It selects；The wherein RV number+1 in N=RV version set；
When retransmitting, the multiple TRP RV used in used RV index and previous transmission in each transmission Index is different；If the RV index in the RV version set has been completely used for transmitting, recycling method is used, from First RV index in the RV version set starts to reselect.
Wherein, the corresponding scheduling control information of the multiple TRP of the determination, comprising:
It is identical to dispatch using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP Data packet transmitted on the multiple TRP；The PDCCH indicates that identical data packet is transmitted on different TRP and accounts for With identical or different resource；
Alternatively, dispatching identical data packet respectively as the scheduling control information of the multiple TRP using multiple PDCCH Carry out data transmission on the multiple TRP.
Wherein, when using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP, with Identical data packet is dispatched when being transmitted on the multiple TRP, Xiang Suoshu UE indicates that transmission block indicates information, comprising:
Indicate that the transmission block indicates information to the UE using Downlink Control Information DCI signaling；Or
PDCCH is scrambled using the first radio network temporary identifier RNTI, to indicate the transmission block to the UE Indicate information；Or
Operating mode is sent to UE using radio resource control RRC signaling and indicates information, and the operating mode indicates information For indicating UE work under default operating mode, to indicate that transmission block indicates information.
Wherein, when using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP, with Identical data packet is dispatched when being transmitted on the multiple TRP, Xiang Suoshu UE indicates the RV information, comprising:
It is the DMRS port according to the mapping relations of TRP and demodulated reference signal port set DMRS port group RV index RV index is arranged in the corresponding TRP data of group, and indicates the RV index to the UE using DCI signaling.
It is wherein, described that for the DMRS port group corresponding TRP data, RV index RV index is set, comprising:
When the number of the DMRS port group is less than or equal to the RV number in the RV version set, pre- Different RV index RV index is successively selected in the RV version set first defined；When the number of the DMRS port group When greater than RV number in the RV version set, using the method for recycling, from the DMRS port group M DMRS port group starts, since first RV index in the RV version set, in the RV version sets It is successively reselected in conjunction；The wherein RV number+1 in M=RV version set；
When retransmitting, the DMRS port group used RV index and previous transmission institute in each transmission The RV index used is different；If the RV index in the RV version set has been completely used for transmitting, made using circulation With method, reselected since first RV index in the RV version set.
Wherein, when using multiple PDCCH respectively as the scheduling control information of the multiple TRP, dispatch identical data Packet is described to indicate information and the RV information to UE instruction transmission block when carrying out data transmission on the multiple TRP, Include:
Operating mode instruction is sent using RRC signaling or the 2nd RNTI or using an information field in DCI signaling Information, the operating mode instruction information is for indicating UE work under default operating mode, to indicate transmission block to the UE Indicate information；
RV information is indicated to the UE using PDCCH.
Second aspect, the embodiment of the present invention provide a kind of data transmission method, are applied to UE, comprising:
Receive the data packet that network side equipment is sent from multiple TRP；
The transmission block instruction information and RV information that the network side equipment is sent are received, the transmission block instruction information is used Whether correspond to identical transmission block TB in the data packet for indicating that the multiple TRP is sent；
When the data packet for indicating that information determines that the multiple TRP is sent according to the transmission block corresponds to identical TB, The multiple TRP data packet sent is merged in conjunction with the RV information.
It is wherein, described to receive the transmission block instruction information and RV information that the network side equipment is sent, comprising:
The DCI signaling that the network side equipment is sent is received, the DCI signaling is used to indicate the transmission block instruction letter Breath；Or the first RNTI that the network side equipment is sent is received, to obtain the transmission block instruction information；Or described in receiving Network side equipment indicates information using the operating mode that RRC signaling is sent, and the operating mode instruction information is for indicating UE work Make under default operating mode, to obtain the transmission block instruction information；
The DCI signaling that the network side equipment is sent is received, to obtain the RV information.
It is wherein, described to receive the transmission block instruction information and RV information that the network side equipment is sent, comprising:
The network side equipment is received using RRC signaling or the 2nd RNTI or utilizes an information in DCI signaling The operating mode that domain is sent indicates that information, the operating mode instruction information are used to indicate that UE to work under default operating mode, To obtain transmission block instruction information；
The RV information is obtained by PDCCH.
Wherein, described to work as root if receiving the operating mode instruction information that the network side equipment is sent using RRC signaling When corresponding to identical TB according to the data packet that transmission block instruction information determines that the multiple TRP is sent, believe in conjunction with the RV Breath merges the multiple TRP data packet sent, comprising:
It monitors multiple and different PDCCH and PDSCH is detected, and when receiving multiple and different PDSCH, in conjunction with institute RV information is stated to merge the data packet of the multiple TRP.
Wherein, described to work as if receiving the operating mode instruction information that the network side equipment is sent using the 2nd RNTI When corresponding to identical TB according to the data packet that the transmission block indicates that information determines that the multiple TRP is sent, in conjunction with the RV Information merges the multiple TRP data packet sent, comprising:
It determines whether the 2nd RNTI is the RNTI of high reliable communication mode-specific, and is determining that the 2nd RNTI is When the RNTI of high reliable communication mode-specific, the data packet sent from multiple TRP is merged in conjunction with the RV information.
The third aspect, the embodiment of the present invention provide a kind of communication equipment, comprising: transceiver, memory, processor and storage On the memory and the computer program that can run on the processor；
The processor executes following process for reading the program in memory:
When determining user equipment (UE) in multiple transmission receiving point TRP transmitting data packets, determine for current data biography Defeated redundancy versions RV information；Determine the corresponding scheduling control information of multiple TRP；To the UE instruction transmission block instruction information with And whether the RV information, the data packet that the transmission block instruction information is used to indicate the multiple TRP correspond to identical biography Defeated piece of TB；
The transceiver, for sending the data packet of the multiple TRP to the UE using the scheduling control information.
Wherein, the processor is also used to read the program in memory, executes following process:
According to pre-set RV circle transmission mechanism, the RV information for being used for present data transmission is determined.
Wherein, the processor is also used to read the program in memory, executes following process:
It is described more when the number of TRP in the multiple TRP is less than or equal to the RV number in the RV version set A TRP successively selects different RV index RV index in RV version set predetermined；As TRP in the multiple TRP Number be greater than the RV version set in RV number when, the N using the method for recycling, from the multiple TRP A TRP starts, and since first RV index in the RV version set, successively selects again in the RV version set It selects；The wherein RV number+1 in N=RV version set；
When retransmitting, the multiple TRP RV used in used RV index and previous transmission in each transmission Index is different；If the RV index in the RV version set has been completely used for transmitting, recycling method is used, from First RV index in the RV version set starts to reselect.
Wherein, the processor is also used to read the program in memory, executes following process:
It is identical to dispatch using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP Data packet transmitted on the multiple TRP；The PDCCH indicates that identical data packet is transmitted on different TRP and accounts for With identical or different resource；
Alternatively, dispatching identical data packet respectively as the scheduling control information of the multiple TRP using multiple PDCCH Carry out data transmission on the multiple TRP.
Wherein, the processor is also used to read the program in memory, executes following process:
Indicate that the transmission block indicates information to the UE using Downlink Control Information DCI signaling；Or
PDCCH is scrambled using the first radio network temporary identifier RNTI, to indicate the transmission block to the UE Indicate information；Or
Operating mode is sent to UE using radio resource control RRC signaling and indicates information, and the operating mode indicates information For indicating UE work under default operating mode, to indicate that transmission block indicates information.
Wherein, the processor is also used to read the program in memory, executes following process:
It is the DMRS port according to the mapping relations of TRP and demodulated reference signal port set DMRS port group RV index RV index is arranged in the corresponding TRP data of group, and indicates the RV index to the UE using DCI signaling.
Wherein, the processor is also used to read the program in memory, executes following process:
When the number of the DMRS port group is less than or equal to the RV number in the RV version set, pre- Different RV index RV index is successively selected in the RV version set first defined；When the number of the DMRS port group When greater than RV number in the RV version set, using the method for recycling, from the DMRS port group M DMRS port group starts, since first RV index in the RV version set, in the RV version sets It is successively reselected in conjunction；The wherein RV number+1 in M=RV version set；
When retransmitting, the DMRS port group used RV index and previous transmission institute in each transmission The RV index used is different；If the RV index in the RV version set has been completely used for transmitting, made using circulation With method, reselected since first RV index in the RV version set.
Wherein, the processor is also used to read the program in memory, executes following process:
Operating mode instruction is sent using RRC signaling or the 2nd RNTI or using an information field in DCI signaling Information, the operating mode instruction information is for indicating UE work under default operating mode, to indicate transmission block to the UE Indicate information；
RV information is indicated to the UE using PDCCH.
Fourth aspect, the embodiment of the present invention provide a kind of communication equipment, comprising: transceiver, memory, processor and storage On the memory and the computer program that can run on the processor；
The transceiver, the data packet sent from multiple TRP for receiving network side equipment；The network side is received to set The transmission block instruction information and RV information that preparation is sent, the transmission block instruction information are used to indicate what the multiple TRP was sent Whether data packet corresponds to identical transmission block TB；
The processor executes following process for reading the program in memory:
When the data packet for indicating that information determines that the multiple TRP is sent according to the transmission block corresponds to identical TB, The multiple TRP data packet sent is merged in conjunction with the RV information.
Wherein, the transceiver, the DCI signaling sent for receiving the network side equipment, the DCI signaling is for referring to Show the transmission block instruction information；Or the first RNTI that the network side equipment is sent is received, referred to obtaining the transmission block Show information；Or receive the network side equipment and indicate information using the operating mode that RRC signaling is sent, the operating mode refers to Show information for indicating UE work under default operating mode, to obtain the transmission block instruction information；Receive the network side The DCI signaling that equipment is sent, to obtain the RV information.
Wherein, the transceiver, the DCI signaling sent for receiving the network side equipment, receives the network side and sets It is standby to indicate information using RRC signaling or the 2nd RNTI or using the operating mode that an information field in DCI signaling is sent, The operating mode instruction information is for indicating UE work under default operating mode, to obtain transmission block instruction information；
The processor executes following process for reading the program in memory:
The RV information is obtained by PDCCH.
Wherein, the processor executes following process for reading the program in memory:
It monitors multiple and different PDCCH and PDSCH is detected, and when receiving multiple and different PDSCH, in conjunction with institute RV information is stated to merge the data packet of the multiple TRP.
Wherein, the processor executes following process for reading the program in memory:
It determines whether the 2nd RNTI is the RNTI of high reliable communication mode-specific, and is determining that the 2nd RNTI is When the RNTI of high reliable communication mode-specific, the data packet sent from multiple TRP is merged in conjunction with the RV information.
5th aspect, the embodiment of the present invention provide a kind of data transmission device, comprising:
Determining module, for when determining user equipment (UE) in multiple transmission receiving point TRP transmitting data packets, determination to be used In the redundancy versions RV information of present data transmission；
Processing module, for determining the corresponding scheduling control information of multiple TRP；
Indicating module, for being indicated to UE instruction transmission block instruction information and the RV information, the transmission block Whether the data packet that information is used to indicate the multiple TRP corresponds to identical transmission block TB；
Sending module, for sending the data packet of the multiple TRP to the UE using the scheduling control information.
Wherein, the processing module is used for:
It is identical to dispatch using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP Data packet transmitted on the multiple TRP；The PDCCH indicates that identical data packet is transmitted on different TRP and accounts for With identical or different resource；
Alternatively, dispatching identical data packet respectively as the scheduling control information of the multiple TRP using multiple PDCCH Carry out data transmission on the multiple TRP.
6th aspect, the embodiment of the present invention provide a kind of data transmission device, comprising:
First receiving module, the data packet sent from multiple TRP for receiving network side equipment；
Second receiving module, for receiving the transmission block instruction information and RV information that the network side equipment is sent, institute It states transmission block instruction information and is used to indicate whether the data packet that the multiple TRP is sent corresponds to identical transmission block TB；
Processing module indicates that the data packet that information determines that the multiple TRP is sent is corresponding according to the transmission block for working as When identical TB, the multiple TRP data packet sent is merged in conjunction with the RV information.
Wherein, second receiving module includes:
First receiving submodule, the DCI signaling sent for receiving the network side equipment, the DCI signaling is for referring to Show the transmission block instruction information；Or the first RNTI that the network side equipment is sent is received, referred to obtaining the transmission block Show information；Or receive the network side equipment and indicate information using the operating mode that RRC signaling is sent, the operating mode refers to Show information for indicating UE work under default operating mode, to obtain the transmission block instruction information；
Second receiving submodule, the DCI signaling sent for receiving the network side equipment, to obtain the RV information.
Wherein, second receiving module includes:
Third receiving submodule, for receiving the network side equipment using RRC signaling or the 2nd RNTI or utilization The operating mode that an information field in DCI signaling is sent indicates information, and the operating mode instruction information is for indicating UE work Make under default operating mode, to obtain transmission block instruction information；
Acquisition submodule, for obtaining the RV information by PDCCH.
7th aspect, the embodiment of the present invention provides a kind of computer readable storage medium, for storing computer program, institute State the step realized in method as described in relation to the first aspect when computer program is executed by processor；Alternatively, the computer journey The step in the method as described in second aspect is realized when sequence is executed by processor.
The advantageous effects of the above technical solutions of the present invention are as follows:
In embodiments of the present invention, when UE is in multiple TRP transmitting data packets, network side equipment determines that RV version is believed Breath, determines the corresponding scheduling control information of multiple TRP.Then, Xiang Suoshu UE indicates transmission block instruction information and RV letter Breath, the data packet of the multiple TRP is sent using the scheduling control information to the UE.To may make UE receiving After the data packet of multiple TRP, information and RV information can be indicated according to the transmission block of network side equipment, referred to when according to the transmission block When the data packet for showing that information determines that the multiple TRP is sent corresponds to identical TB, data packet that the multiple TRP is sent into Row merges.Therefore, data reliability can be improved using the scheme of the embodiment of the present invention and reduces time delay.
Detailed description of the invention
Fig. 1 is the flow chart of the data transmission method of the embodiment of the present invention；
Fig. 2 is the flow chart of the data transmission method of the embodiment of the present invention；
Fig. 3 is the schematic diagram of the communication equipment of the embodiment of the present invention；
Fig. 4 is the schematic diagram of the communication equipment of the embodiment of the present invention；
Fig. 5 is the schematic diagram of the data transmission device of the embodiment of the present invention；
Fig. 6 is the schematic diagram of the data transmission device of the embodiment of the present invention.
Specific embodiment
Below in conjunction with drawings and examples, specific embodiments of the present invention will be described in further detail.Following reality Example is applied for illustrating the present invention, but is not intended to limit the scope of the invention.
As shown in Figure 1, the data transmission method of the embodiment of the present invention, is applied to network side equipment, comprising:
Step 101, when determining UE (User Equipment, user equipment) in multiple TRP (Transmission Reception Point, transmit receiving point) transmitting data packet when, determine be used for present data transmission RV (Redundancy Version, redundancy versions) information.
Wherein, TRP also refers to a network transmission point, can correspond to the either antenna transmission of a base station and connect Receive unit etc..In embodiments of the present invention, the data packet of the multiple TRP transmission can be URLLC data packet.
In embodiments of the present invention, it according to pre-set RV circle transmission mechanism, determines for present data transmission RV information.
Specifically, when the number of TRP in the multiple TRP is less than or equal to the RV number in the RV version set, Different RV indexes, i.e. RV index are successively selected in RV version set predetermined for the multiple TRP.Wherein, institute Stating RV version set can be [0,1,2,3].When the number of TRP in the multiple TRP is greater than the RV in the RV version set When number, using the method for recycling, since the n-th TRP in the multiple TRP, from the RV version set First RV index starts, and successively reselects in the RV version set；The wherein RV number in N=RV version set +1。
When retransmitting, the multiple TRP RV used in used RV index and previous transmission in each transmission Index is different；If the RV index in the RV version set has been completely used for transmitting, recycling method is used, from First RV index in the RV version set starts to reselect.
For example, in order to improve reliability, transmission uses RV version set for the first time when two TRP carry out data transmission RV { 0,1 } in [0,1,2,3] corresponds to TRP0 and TRP1；When transmitting for second using in RV version set [0,1,2,3] RV { 2,3 } corresponds respectively to TR0 and TRP1.
Step 102 determines the corresponding scheduling control information of multiple TRP.
In embodiments of the present invention, can use a PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) scheduling control information as the multiple TRP, to dispatch identical data packet the multiple It is transmitted on TRP；The PDCCH indicates that identical data packet is transmitted on different TRP and occupies identical or different resource.
Alternatively, dispatching identical data packet respectively as the scheduling control information of the multiple TRP using multiple PDCCH Carry out data transmission on the multiple TRP.
After corresponding scheduling control information has been determined, can to the data packet of the multiple TRP carry out data dispatch and Resource impact.
Step 103, Xiang Suoshu UE instruction transmission block instruction information and the RV information, the transmission block instruction information are used Whether correspond to identical transmission block TB in the data packet for indicating the multiple TRP.When the transmitted data packet of instruction is identical , it is meant that multiple data packets need to merge, to provide diversity gain.Data packet said herein is corresponding to be different TRP biography Defeated data flow.
When using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP, to dispatch phase Same data packet on the multiple TRP when being transmitted, and in this step, is believed just like under type to UE instruction transmission block instruction Breath:
Institute is indicated to the UE using DCI (Downlink Control Information, Downlink Control Information) signaling State transmission block instruction information；Or
It is right using the first RNTI (Radio Network Temporary Identity, radio network temporary identifier) PDCCH is scrambled, to indicate that the transmission block indicates information to the UE；Or
Operating mode is sent to UE using RRC (Radio Resource Control, wireless heterogeneous networks) signaling to indicate Information, the operating mode instruction information is for indicating UE work under default operating mode, in this mode, from multiple TRP The data flow of transmission should correspond to identical data block, in favor of data merging, therefore the mode indication information it is recessive to institute State UE instruction transmission block instruction information.Wherein, default operating mode can be a kind of high reliable communication mode, such as can be URLLC mode.
In the case that it is above-mentioned these, to the UE indicate the RV information when, according to TRP and DMRS The mapping relations of (Demodulation Reference Signal, demodulated reference signal) port group (port set), for institute The corresponding TRP data setting RV index RV index of DMRS port group is stated, and indicates institute to the UE using DCI signaling State RV index.
Specifically, when the number of the DMRS port group is less than or equal to the RV number in the RV version set When, in RV version set predetermined, as successively selected different RV index RV index in [0,1,2,3].When described When the number of DMRS port group is greater than the RV number in the RV version set, using the method for recycling, from described M-th DMRS port group in DMRS port group starts, from first RV in the RV version set Index starts, and successively reselects in the RV version set；The wherein RV number+1 in M=RV version set.It is retransmitting When, DMRS port group RV index used in used RV index and previous transmission in each transmission It is different；If the RV index in the RV version set has been completely used for transmitting, recycling method is used, from the RV First RV index in version set starts to reselect.
When using multiple PDCCH respectively as the scheduling control information of the multiple TRP, dispatch identical data packet in institute It states when carrying out data transmission on multiple TRP, using RRC signaling or the 2nd RNTI or utilizes a letter in DCI signaling Breath domain sends operating mode and indicates that information, the operating mode instruction information are used to indicate that UE to work under default operating mode, To indicate information to UE instruction transmission block；RV information is indicated to the UE using PDCCH.Wherein, default operating mode can It to be a kind of high reliable communication mode, such as can be URLLC mode.
Step 104, the data packet for sending the multiple TRP to the UE using the scheduling control information.
In embodiments of the present invention, when UE is in multiple TRP transmitting data packets, network side equipment determines that RV version is believed Breath, determines the corresponding scheduling control information of multiple TRP.Then, Xiang Suoshu UE indicates transmission block instruction information and RV letter Breath, the data packet of the multiple TRP is sent using the scheduling control information to the UE.To may make UE receiving After the data packet of multiple TRP, information and RV information can be indicated according to the transmission block of network side equipment, referred to when according to the transmission block When the data packet for showing that information determines that the multiple TRP is sent corresponds to identical TB, data packet that the multiple TRP is sent into Row merges.Therefore, data reliability can be improved using the scheme of the embodiment of the present invention and reduces time delay.
As shown in Fig. 2, the data transmission method of the embodiment of the present invention, is applied to UE, comprising:
Step 201 receives the data packet that network side equipment is sent from multiple TRP.
Step 202, the transmission block instruction information for receiving the network side equipment transmission and RV information, the transmission block refer to Show that information is used to indicate whether the data packet that the multiple TRP is sent corresponds to identical transmission block TB.
The transmission mode different corresponding to network side equipment, in this step, UE can receive the network side equipment and send DCI signaling, the DCI signaling is used to indicate transmission block instruction information；Or receive what the network side equipment was sent First RNTI, to obtain the transmission block instruction information；Or receive the work that the network side equipment utilizes RRC signaling to send Mode indication information, the operating mode instruction information is for indicating UE work under default operating mode, to obtain the biography Defeated piece of instruction information；The DCI signaling that the network side equipment is sent is received, to obtain the RV information.
Alternatively, UE can receive the network side equipment using RRC signaling or the 2nd RNTI or using in DCI signaling The operating mode that one information field is sent indicates information, and the operating mode instruction information is for indicating UE work in default work Under mode, to obtain transmission block instruction information, the RV information is obtained by PDCCH.
Wherein, default operating mode can be a kind of high reliable communication mode, such as can be URLLC mode.
It is step 203, identical when indicating that data packet that information determines that the multiple TRP is sent corresponds to according to the transmission block TB when, the multiple TRP data packet sent is merged in conjunction with the RV information.
In this step, if receiving the operating mode instruction information that the network side equipment is sent using RRC signaling, UE It monitors multiple and different PDCCH and PDSCH is detected, and when receiving multiple and different PDSCH, in conjunction with the RV information The data packet of the multiple TRP is merged.
If receiving the operating mode instruction information that the network side equipment is sent using the 2nd RNTI, UE determines described the Whether two RNTI are the RNTI of high reliable communication mode-specific, and are determining that the 2nd RNTI is high reliable communication mode-specific RNTI when, in conjunction with the RV information to it is described from multiple TRP send data packet merge.
In embodiments of the present invention, when UE is in multiple TRP transmitting data packets, network side equipment determines that RV version is believed Breath, determines the corresponding scheduling control information of multiple TRP.Then, Xiang Suoshu UE indicates transmission block instruction information and RV letter Breath, the data packet of the multiple TRP is sent using the scheduling control information to the UE.To may make UE receiving After the data packet of multiple TRP, information and RV information can be indicated according to the transmission block of network side equipment, referred to when according to the transmission block When the data packet for showing that information determines that the multiple TRP is sent corresponds to identical TB, data packet that the multiple TRP is sent into Row merges.Therefore, data reliability can be improved using the scheme of the embodiment of the present invention and reduces time delay.
In embodiments of the present invention, when network side equipment determines that a UE, can when multiple TRP transmit URLLC data packet Obtain the data-signal of multiple and different redundancy versions RV.PDSCH resource is carried out to multiple TRP using one or more PDCCH Scheduling.It is, for example, possible to use PDSCH multithread (multilayer) to carry out Deta bearer, can also using multiple independent PDSCH into Row Deta bearer.Then, resource impact is carried out to multiple TRP data packet to be transmitted and sent, and notify the more TRP transmission of UE Whether data flow corresponds to identical TB.After UE receives the data-signal of multiple TRP, data demodulation is carried out, to from the same TB Data packet carry out RV versions merging.
Hereinafter, describing in detail the specific implementation process of invention in conjunction with two embodiments.
In the data transmission method of the embodiment of the present invention, a PDSCH is dispatched from different TRP with a PDCCH Multiple stream transmission for be described.
Multithread is transmitted on one PDSCH, can be scheduled with a PDCCH.But in order to avoid data interfere with each other, Using different resource allocations, multiple resource distribution instructions are needed in this way.The corresponding TRP of each data flow carries out data hair It send.In embodiments of the present invention, expense is indicated in order to reduce resource, can use following signaling optimization method:
First data flow uses continuous resource allocation, and the resource allocation of second data flow and first are only spaced one A offset (offset), third are also spaced an offset with second, additional offset are only indicated in PDCCH.
Since multiple data flows are the different RV of the same data packet, need that different TRP data are explicitly indicated in PDCCH Stream corresponds to the same transmission block TB.Specific method can be one mark flag signal of increase in PDCCH.When the mark It when being designated as 0, indicates that different data flows corresponds to different TB, merges without data；When the mark is designated as 1, one is indicated A different TRP data flow comes from identical TB, needs to carry out data merging.
Optionally, an independent RNTI can be configured for URLLC, when working in such a mode, multiple TRP correspond to the conjunction of RV And the instruction of RNTI recessiveness can be passed through.
Simultaneously as a TRP usually corresponds to an independent DMRS port group, it is therefore desirable to establish a pass Connection relationship.When aforementioned flag is when being designated as 1, the data flow of different TRP transmission corresponds to identical TB, corresponds to a DMRS Port group configures a RV index instructions field.TRP different in this way can configure identical or different RV.In order to improve Channel decoding effect, different transmission opportunities can configure the loop distribution of RV, to improve the convergence for retransmitting or being transmitted several times speed Degree.
In the data transmission method of the embodiment of the present invention, retouched so that multiple PDSCH are independently scheduled merging as an example It states.
Due to needing to be scheduled with multiple PDCCH using multiple RV versions are transmitted on multiple PDSCH.But in order to keep away Exempt from data to interfere with each other, generally use different resource allocations, different PDCCH can independently dispatch resource.In order to improve The reliability of PDCCH, each PDCCH can use orthogonal resource allocation, while use higher CCE polymerization grade.
If the data flow of multiple TRP transmission is the different RV of the same data packet, come from when multiple PDCCH scheduling is multiple When the PDSCH of different TRP, RRC configuration can be used or worked at this time with dedicated RNTI notice UE in URLLC mode, connect The multiple PDSCH received correspond to identical TB and merge to the RV of different PDSCH.
When RRC configuration instruction, UE knows oneself work under URLCC mode while may have multiple and different PDCCH Scheduling, therefore UE monitors multiple and different PDCCH and detects PDSCH, if receiving multiple and different PDSCH, carries out data Merge.It is indicated when using dedicated RNTI, UE needs to detect RNTI to distinguish whether multiple and different PDSCH needs to merge, such as Fruit is the dedicated RNTI of URLLC, then carries out data merging, if it is other RNTI, is then merged without data, independent to each PDSCH carries out Data Detection.
By above description as can be seen that the scheme using the embodiment of the present invention can effectively improve data transmission credibility simultaneously Reduce reception delay.
As shown in figure 3, the communication equipment of the embodiment of the present invention includes: processor 300, for reading in memory 320 Program executes following process:
Processor 300 executes following process: utilizing institute by transceiver 310 for reading the program in memory 320 State the data packet that scheduling control information sends the multiple TRP to the UE；When determining that user equipment (UE) receives in multiple transmission When point TRP transmitting data packet, the redundancy versions RV information for being used for present data transmission is determined；Determine the corresponding tune of multiple TRP Degree control information；To UE instruction transmission block instruction information and the RV information, the transmission block instruction information is for referring to Show whether the data packet of the multiple TRP corresponds to identical transmission block TB；
Transceiver 310, for sending and receiving data under the control of processor 300.Specifically, for utilizing the tune Degree control information sends the data packet of the multiple TRP to the UE.
Wherein, in Fig. 3, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 300 The various circuits for the memory that the one or more processors and memory 320 of representative represent link together.Bus architecture is also Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 310 can To be multiple element, that is, includes transmitter and transceiver, the list for communicating over a transmission medium with various other devices is provided Member.Processor 300, which is responsible for management bus architecture and common processing, memory 320, can store processor 300 and is executing operation When used data.
Processor 300, which is responsible for management bus architecture and common processing, memory 320, can store processor 300 and is holding Used data when row operation.
Processor 300 is also used to read the computer program, executes following steps:
According to pre-set RV circle transmission mechanism, the RV information for being used for present data transmission is determined.
Processor 300 is also used to read the computer program, executes following steps:
It is described more when the number of TRP in the multiple TRP is less than or equal to the RV number in the RV version set A TRP successively selects different RV index RV index in RV version set predetermined；As TRP in the multiple TRP Number be greater than the RV version set in RV number when, the N using the method for recycling, from the multiple TRP A TRP starts, and since first RV index in the RV version set, successively selects again in the RV version set It selects；The wherein RV number+1 in N=RV version set；When retransmitting, the multiple TRP used RV in each transmission Index and RV index used in previous transmission is different；If the RV index in the RV version set has been completely used for Transmission then uses recycling method, reselects since first RV index in the RV version set.
Processor 300 is also used to read the computer program, executes following steps:
It is identical to dispatch using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP Data packet transmitted on the multiple TRP；The PDCCH indicates that identical data packet is transmitted on different TRP and accounts for With identical or different resource；
Alternatively, dispatching identical data packet respectively as the scheduling control information of the multiple TRP using multiple PDCCH Carry out data transmission on the multiple TRP.
Processor 300 is also used to read the computer program, executes following steps:
Indicate that the transmission block indicates information to the UE using Downlink Control Information DCI signaling；Or
PDCCH is scrambled using the first radio network temporary identifier RNTI, to indicate the transmission block to the UE Indicate information；Or
Operating mode is sent to UE using radio resource control RRC signaling and indicates information, and the operating mode indicates information For indicating UE work under default operating mode, to indicate that transmission block indicates information.
Processor 300 is also used to read the computer program, executes following steps:
It is the DMRS port according to the mapping relations of TRP and demodulated reference signal port set DMRS port group RV index RV index is arranged in the corresponding TRP data of group, and indicates the RV index to the UE using DCI signaling.
Processor 300 is also used to read the computer program, executes following steps:
When the number of the DMRS port group is less than or equal to the RV number in the RV version set, pre- Different RV index RV index is successively selected in the RV version set first defined；When the number of the DMRS port group When greater than RV number in the RV version set, using the method for recycling, from the DMRS port group M DMRS port group starts, since first RV index in the RV version set, in the RV version sets It is successively reselected in conjunction；The wherein RV number+1 in M=RV version set；
When retransmitting, the DMRS port group used RV index and previous transmission institute in each transmission The RV index used is different；If the RV index in the RV version set has been completely used for transmitting, made using circulation With method, reselected since first RV index in the RV version set.
Processor 300 is also used to read the computer program, executes following steps:
Operating mode instruction is sent using RRC signaling or the 2nd RNTI or using an information field in DCI signaling Information, the operating mode instruction information is for indicating UE work under default operating mode, to indicate transmission block to the UE Indicate information；
RV information is indicated to the UE using PDCCH.
Wherein, default operating mode can be a kind of high reliable communication mode, such as can be URLLC mode.
As shown in figure 4, a kind of communication equipment of the embodiment of the present invention, comprising: processor 400, for reading memory 420 In program, execute following process:
Processor 400 executes following process for reading the program in memory 420:
The data packet that network side equipment is sent from multiple TRP is received by transceiver 410；Receive the network side equipment The transmission block instruction information and RV information of transmission, the transmission block instruction information are used to indicate the number that the multiple TRP is sent Whether correspond to identical transmission block TB according to packet；When the number for determining the multiple TRP transmission according to transmission block instruction information When corresponding to identical TB according to packet, the multiple TRP data packet sent is merged in conjunction with the RV information.
Transceiver 410, for sending and receiving data under the control of processor 400.Specifically, for receiving network side The data packet that equipment is sent from multiple TRP；The transmission block instruction information and RV information that the network side equipment is sent are received, The transmission block instruction information is used to indicate whether the data packet that the multiple TRP is sent corresponds to identical transmission block TB.
Wherein, in Fig. 4, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 400 The various circuits for the memory that the one or more processors and memory 420 of representative represent link together.Bus architecture is also Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 410 can To be multiple element, that is, includes transmitter and receiver, the list for communicating over a transmission medium with various other devices is provided Member.For different user equipmenies, user interface 430, which can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loudspeaker, microphone, control stick etc..
Processor 400, which is responsible for management bus architecture and common processing, memory 420, can store processor 400 and is holding Used data when row operation.
The transceiver 410, the DCI signaling sent for receiving the network side equipment, the DCI signaling are used to indicate The transmission block indicates information；Or the first RNTI that the network side equipment is sent is received, to obtain the transmission block instruction Information；Or it receives the network side equipment and indicates information, the operating mode instruction using the operating mode that RRC signaling is sent Information is for indicating UE work under default operating mode, to obtain the transmission block instruction information；The network side is received to set The DCI signaling that preparation is sent, to obtain the RV information.
The transceiver 410, the DCI signaling sent for receiving the network side equipment, receives the network side equipment Information, institute are indicated using RRC signaling or the 2nd RNTI or using the operating mode that an information field in DCI signaling is sent Operating mode instruction information is stated for indicating UE work under default operating mode, to obtain transmission block instruction information；
Processor 400 is also used to read the computer program, executes following steps:
The RV information is obtained by PDCCH.
Processor 400 is also used to read the computer program, executes following steps:
It monitors multiple and different PDCCH and PDSCH is detected, and when receiving multiple and different PDSCH, in conjunction with institute RV information is stated to merge the data packet of the multiple TRP.
Processor 400 is also used to read the computer program, executes following steps:
It determines whether the 2nd RNTI is the RNTI of high reliable communication mode-specific, and is determining that the 2nd RNTI is When the RNTI of high reliable communication mode-specific, the data packet sent from multiple TRP is merged in conjunction with the RV information.
Wherein, default operating mode can be a kind of high reliable communication mode, such as can be URLLC mode.
As shown in figure 5, the data transmission device of the embodiment of the present invention, comprising:
Determining module 501, for when determine user equipment (UE) in multiple transmission receiving point TRP transmitting data packets, really Surely it is used for the redundancy versions RV information of present data transmission；Processing module 502, for determining the corresponding scheduling controlling of multiple TRP Information；Indicating module 503, for being indicated to UE instruction transmission block instruction information and the RV information, the transmission block Whether the data packet that information is used to indicate the multiple TRP corresponds to identical transmission block TB；Sending module 504, for utilizing The scheduling control information sends the data packet of the multiple TRP to the UE.
Wherein it is determined that module 501, is specifically used for determining according to pre-set RV circle transmission mechanism and being used for current number According to the RV information of transmission.Specifically, when the number of TRP in the multiple TRP is less than or equal to the RV in the RV version set When number, different RV index RV index is successively selected in RV version set predetermined for the multiple TRP；Work as institute When stating the number of TRP in multiple TRP and being greater than the RV number in the RV version set, using the method for recycling, from described N-th TRP in multiple TRP starts, since first RV index in the RV version set, in the RV version sets It is successively reselected in conjunction；The wherein RV number+1 in N=RV version set；When retransmitting, the multiple TRP is being transmitted every time When used RV index and RV index used in previous transmission it is different；If the RV in the RV version set Index has been completely used for transmitting, then recycling method is used, since first RV index in the RV version set It reselects.
Wherein, the processing module 502 is used for:
It is identical to dispatch using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP Data packet transmitted on the multiple TRP；The PDCCH indicates that identical data packet is transmitted on different TRP and accounts for With identical or different resource；
Alternatively, dispatching identical data packet respectively as the scheduling control information of the multiple TRP using multiple PDCCH Carry out data transmission on the multiple TRP.
Wherein, when using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP, with Identical data packet is dispatched when being transmitted on the multiple TRP, indicating module 503 is used for, and utilizes Downlink Control Information DCI Signaling indicates that the transmission block indicates information to the UE；Or using the first radio network temporary identifier RNTI to PDCCH into Row scrambling, to indicate that the transmission block indicates information to the UE；Or work is sent to UE using radio resource control RRC signaling Operation mode indicates information, and the operating mode instruction information is for indicating UE work under default operating mode, to indicate to transmit Block indicates information.And indicating module 503 is used for reflecting according to TRP and demodulated reference signal port set DMRS port group Relationship is penetrated, is that RV index RV index is arranged in the corresponding TRP data of the DMRS port group, and utilizes DCI signaling to institute It states UE and indicates the RV index.
When RV index RV index is arranged for the corresponding TRP data of the DMRS port group, as the DMRS When the number of port group is less than or equal to the RV number in the RV version set, in RV version set predetermined, As successively selected different RV index RV index in [0,1,2,3]；Described in being greater than when the number of the DMRS port group When RV number in RV version set, the m-th DMRS using the method for recycling, from the DMRS port group Port group starts, since first RV index in the RV version set, in the RV version set successively It reselects；The wherein RV number+1 in M=RV version set；When retransmitting, the DMRS port group is being transmitted every time When used RV index and RV index used in previous transmission it is different；If the RV in the RV version set Index has been completely used for transmitting, then recycling method is used, since first RV index in the RV version set It reselects.
Wherein, when using multiple PDCCH respectively as the scheduling control information of the multiple TRP, dispatch identical data When carrying out data transmission on the multiple TRP, indicating module 503 is used for packet, utilizes RRC signaling or the 2nd RNTI or benefit Operating mode is sent with an information field in DCI signaling and indicates information, and the operating mode instruction information is for indicating UE work Make under default operating mode, to indicate information to UE instruction transmission block；RV information is indicated to the UE using PDCCH.
Wherein, default operating mode can be a kind of high reliable communication mode, such as can be URLLC mode.
The working principle of the device of the embodiment of the present invention can refer to the description of preceding method embodiment, and described device can position In network side equipment.
In embodiments of the present invention, when UE is in multiple TRP transmitting data packets, network side equipment determines that RV version is believed Breath, determines the corresponding scheduling control information of multiple TRP.Then, Xiang Suoshu UE indicates transmission block instruction information and RV letter Breath, the data packet of the multiple TRP is sent using the scheduling control information to the UE.To may make UE receiving After the data packet of multiple TRP, information and RV information can be indicated according to the transmission block of network side equipment, referred to when according to the transmission block When the data packet for showing that information determines that the multiple TRP is sent corresponds to identical TB, data packet that the multiple TRP is sent into Row merges.Therefore, data reliability can be improved using the scheme of the embodiment of the present invention and reduces time delay.
As shown in fig. 6, the data transmission device of the embodiment of the present invention includes:
First receiving module 601, the data packet sent from multiple TRP for receiving network side equipment；
Second receiving module 602, for receiving the transmission block instruction information and RV information that the network side equipment is sent, The transmission block instruction information is used to indicate whether the data packet that the multiple TRP is sent corresponds to identical transmission block TB；
Processing module 603, for when the data packet pair for determining the multiple TRP transmission according to transmission block instruction information The multiple TRP data packet sent should be merged in conjunction with the RV information when identical TB.
Wherein, second receiving module 602 can include: the first receiving submodule, for receiving the network side equipment The DCI signaling of transmission, the DCI signaling are used to indicate the transmission block instruction information；Or receive the network side equipment hair The first RNTI sent, to obtain the transmission block instruction information；Or receive what the network side equipment was sent using RRC signaling Operating mode indicates information, and the operating mode instruction information is for indicating UE work under default operating mode, to obtain State transmission block instruction information；Second receiving submodule, the DCI signaling sent for receiving the network side equipment, to obtain State RV information.
Alternatively, second receiving module 602 can include: third receiving submodule, for receiving the network side equipment Information, institute are indicated using RRC signaling or the 2nd RNTI or using the operating mode that an information field in DCI signaling is sent Operating mode instruction information is stated for indicating UE work under default operating mode, to obtain transmission block instruction information；Obtain son Module, for obtaining the RV information by PDCCH.
Wherein, if receiving the operating mode instruction information that the network side equipment is sent using RRC signaling, processing module 603 are used for, and monitor multiple and different PDCCH and detect to PDSCH, and when receiving multiple and different PDSCH, in conjunction with institute RV information is stated to merge the data packet of the multiple TRP.
Wherein, if receiving the operating mode instruction information that the network side equipment is sent using the 2nd RNTI, mould is handled Block 603 is used for, and determines whether the 2nd RNTI is the RNTI of high reliable communication mode-specific, and is determining the 2nd RNTI When being the RNTI of high reliable communication mode-specific, the data packet sent from multiple TRP is closed in conjunction with the RV information And.
The working principle of the device of the embodiment of the present invention can refer to the description of preceding method embodiment, and described device can position In UE.
In embodiments of the present invention, when UE is in multiple TRP transmitting data packets, network side equipment determines that RV version is believed Breath, determines the corresponding scheduling control information of multiple TRP.Then, Xiang Suoshu UE indicates transmission block instruction information and RV letter Breath, the data packet of the multiple TRP is sent using the scheduling control information to the UE.To may make UE receiving After the data packet of multiple TRP, information and RV information can be indicated according to the transmission block of network side equipment, referred to when according to the transmission block When the data packet for showing that information determines that the multiple TRP is sent corresponds to identical TB, data packet that the multiple TRP is sent into Row merges.Therefore, data reliability can be improved using the scheme of the embodiment of the present invention and reduces time delay.
In addition, the computer readable storage medium of the embodiment of the present invention, for storing computer program, the computer journey Sequence can be executed by processor and perform the steps of
When determining user equipment (UE) in multiple transmission receiving point TRP transmitting data packets, determine for current data biography Defeated redundancy versions RV information；
Determine the corresponding scheduling control information of multiple TRP；
To UE instruction transmission block instruction information and the RV information, the transmission block instruction information is used to indicate institute Whether the data packet for stating multiple TRP corresponds to identical transmission block TB；
The data packet of the multiple TRP is sent to the UE using the scheduling control information.
Wherein, the determination is used for the redundancy versions RV information of present data transmission, comprising:
According to pre-set RV circle transmission mechanism, the RV information for being used for present data transmission is determined.
Wherein, described according to pre-set RV circle transmission mechanism, determine the RV information for being used for present data transmission, packet It includes:
It is described more when the number of TRP in the multiple TRP is less than or equal to the RV number in the RV version set A TRP successively selects different RV index RV index in RV version set predetermined；As TRP in the multiple TRP Number be greater than the RV version set in RV number when, the N using the method for recycling, from the multiple TRP A TRP starts, and since first RV index in the RV version set, successively selects again in the RV version set It selects；The wherein RV number+1 in N=RV version set；
When retransmitting, the multiple TRP RV used in used RV index and previous transmission in each transmission Index is different；If the RV index in the RV version set has been completely used for transmitting, recycling method is used, from First RV index in the RV version set starts to reselect.
Wherein, the corresponding scheduling control information of the multiple TRP of the determination, comprising:
It is identical to dispatch using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP Data packet transmitted on the multiple TRP；The PDCCH indicates that identical data packet is transmitted on different TRP and accounts for With identical or different resource；
Alternatively, dispatching identical data packet respectively as the scheduling control information of the multiple TRP using multiple PDCCH Carry out data transmission on the multiple TRP.
Wherein, when using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP, with Identical data packet is dispatched when being transmitted on the multiple TRP, Xiang Suoshu UE indicates that transmission block indicates information, comprising:
Indicate that the transmission block indicates information to the UE using Downlink Control Information DCI signaling；Or
PDCCH is scrambled using the first radio network temporary identifier RNTI, to indicate the transmission block to the UE Indicate information；Or
Operating mode is sent to UE using radio resource control RRC signaling and indicates information, and the operating mode indicates information For indicating UE work under default operating mode, to indicate that transmission block indicates information.
Wherein, when using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP, with Identical data packet is dispatched when being transmitted on the multiple TRP, Xiang Suoshu UE indicates the RV information, comprising:
It is the DMRS port according to the mapping relations of TRP and demodulated reference signal port set DMRS port group RV index RV index is arranged in the corresponding TRP data of group, and indicates the RV index to the UE using DCI signaling.
It is wherein, described that for the DMRS port group corresponding TRP data, RV index RV index is set, comprising:
When the number of the DMRS port group is less than or equal to the RV number in the RV version set, pre- Different RV index RV index is successively selected in the RV version set first defined；When the number of the DMRS port group When greater than RV number in the RV version set, using the method for recycling, from the DMRS port group M DMRS port group starts, since first RV index in the RV version set, in the RV version sets It is successively reselected in conjunction；The wherein RV number+1 in M=RV version set；
When retransmitting, the DMRS port group used RV index and previous transmission institute in each transmission The RV index used is different；If the RV index in the RV version set has been completely used for transmitting, made using circulation With method, reselected since first RV index in the RV version set.
Wherein, when using multiple PDCCH respectively as the scheduling control information of the multiple TRP, dispatch identical data Packet is described to indicate information and the RV information to UE instruction transmission block when carrying out data transmission on the multiple TRP, Include:
Operating mode instruction is sent using RRC signaling or the 2nd RNTI or using an information field in DCI signaling Information, the operating mode instruction information is for indicating UE work under default operating mode, to indicate transmission block to the UE Indicate information；
RV information is indicated to the UE using PDCCH.
In addition, the computer readable storage medium of the embodiment of the present invention, for storing computer program, the computer journey Sequence can be executed by processor and perform the steps of
Receive the data packet that network side equipment is sent from multiple TRP；
The transmission block instruction information and RV information that the network side equipment is sent are received, the transmission block instruction information is used Whether correspond to identical transmission block TB in the data packet for indicating that the multiple TRP is sent；
When the data packet for indicating that information determines that the multiple TRP is sent according to the transmission block corresponds to identical TB, The multiple TRP data packet sent is merged in conjunction with the RV information.
It is wherein, described to receive the transmission block instruction information and RV information that the network side equipment is sent, comprising:
The DCI signaling that the network side equipment is sent is received, the DCI signaling is used to indicate the transmission block instruction letter Breath；Or the first RNTI that the network side equipment is sent is received, to obtain the transmission block instruction information；Or described in receiving Network side equipment indicates information using the operating mode that RRC signaling is sent, and the operating mode instruction information is for indicating UE work Make under default operating mode, to obtain the transmission block instruction information；
The DCI signaling that the network side equipment is sent is received, to obtain the RV information.
It is wherein, described to receive the transmission block instruction information and RV information that the network side equipment is sent, comprising:
The network side equipment is received using RRC signaling or the 2nd RNTI or utilizes an information in DCI signaling The operating mode that domain is sent indicates that information, the operating mode instruction information are used to indicate that UE to work under default operating mode, To obtain transmission block instruction information；
The RV information is obtained by PDCCH.
Wherein, described to work as root if receiving the operating mode instruction information that the network side equipment is sent using RRC signaling When corresponding to identical TB according to the data packet that transmission block instruction information determines that the multiple TRP is sent, believe in conjunction with the RV Breath merges the multiple TRP data packet sent, comprising:
It monitors multiple and different PDCCH and PDSCH is detected, and when receiving multiple and different PDSCH, in conjunction with institute RV information is stated to merge the data packet of the multiple TRP.
Wherein, described to work as if receiving the operating mode instruction information that the network side equipment is sent using the 2nd RNTI When corresponding to identical TB according to the data packet that the transmission block indicates that information determines that the multiple TRP is sent, in conjunction with the RV Information merges the multiple TRP data packet sent, comprising:
It determines whether the 2nd RNTI is the RNTI of high reliable communication mode-specific, and is determining that the 2nd RNTI is When the RNTI of high reliable communication mode-specific, the data packet sent from multiple TRP is merged in conjunction with the RV information.
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 (32)

1. a kind of data transmission method, which is characterized in that be applied to network side equipment, comprising:
When determining user equipment (UE) in multiple transmission receiving point TRP transmitting data packets, determination is for present data transmission Redundancy versions RV information；
Determine the corresponding scheduling control information of multiple TRP；
To UE instruction transmission block instruction information and the RV information, the transmission block instruction information is used to indicate described more Whether the data packet of a TRP corresponds to identical transmission block TB；
The data packet of the multiple TRP is sent to the UE using the scheduling control information.
2. the method according to claim 1, wherein the determination is used for the redundancy versions RV of present data transmission Information, comprising:
According to pre-set RV circle transmission mechanism, the RV information for being used for present data transmission is determined.
3. according to the method described in claim 2, it is characterized in that, described according to pre-set RV circle transmission mechanism, really Surely it is used for the RV information of present data transmission, comprising:
It is the multiple when the number of TRP in the multiple TRP is less than or equal to the RV number in the RV version set TRP successively selects different RV index RV index in RV version set predetermined；As TRP in the multiple TRP When number is greater than the RV number in the RV version set, the n-th using the method for recycling, from the multiple TRP TRP starts, and since first RV index in the RV version set, successively selects again in the RV version set It selects；The wherein RV number+1 in N=RV version set；
When retransmitting, the multiple TRP RV used in used RV index and previous transmission in each transmission Index is different；If the RV index in the RV version set has been completely used for transmitting, recycling method is used, from First RV index in the RV version set starts to reselect.
4. the method according to claim 1, wherein the corresponding scheduling control information of the multiple TRP of the determination, packet It includes:
Using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP, to dispatch identical number It is transmitted on the multiple TRP according to packet；The PDCCH indicates that identical data packet is transmitted on different TRP and occupies phase Same or different resource；
Alternatively, being existed using multiple PDCCH respectively as the scheduling control information of the multiple TRP with dispatching identical data packet Carry out data transmission on the multiple TRP.
5. the method according to claim 1, wherein when using a physical downlink control channel PDCCH as The scheduling control information of the multiple TRP, to dispatch identical data packet when being transmitted on the multiple TRP, Xiang Suoshu UE indicates that transmission block indicates information, comprising:
Indicate that the transmission block indicates information to the UE using Downlink Control Information DCI signaling；Or
PDCCH is scrambled using the first radio network temporary identifier RNTI, to indicate the transmission block instruction to the UE Information；Or
Operating mode, which is sent, to UE using radio resource control RRC signaling indicates that information, the operating mode instruction information are used for UE work is indicated under default operating mode, to indicate that transmission block indicates information.
6. the method according to claim 1, wherein when using a physical downlink control channel PDCCH as The scheduling control information of the multiple TRP, to dispatch identical data packet when being transmitted on the multiple TRP, Xiang Suoshu UE indicates the RV information, comprising:
It is the DMRS port according to the mapping relations of TRP and demodulated reference signal port set DMRS port group RV index RV index is arranged in the corresponding TRP data of group, and indicates the RV index to the UE using DCI signaling.
7. according to the method described in claim 6, it is characterized in that, described is the corresponding TRP number of the DMRS port group According to setting RV index RV index, comprising:
It is fixed in advance when the number of the DMRS port group is less than or equal to the RV number in the RV version set Different RV index RV index is successively selected in the RV version set of justice；When the number of the DMRS port group is greater than When RV number in the RV version set, the m-th using the method for recycling, from the DMRS port group DMRS port group starts, since first RV index in the RV version set, in the RV version set Successively reselect；The wherein RV number+1 in M=RV version set；
When retransmitting, the DMRS port group used RV index and previous transmission in each transmission are used RV index it is different；If the RV index in the RV version set has been completely used for transmitting, recycling side is used Method is reselected since first RV index in the RV version set.
8. the method according to claim 1, wherein working as using multiple PDCCH respectively as the multiple TRP's Scheduling control information dispatches identical data packet when carrying out data transmission on the multiple TRP, described to indicate to pass to the UE Defeated piece of instruction information and the RV information, comprising:
Operating mode instruction information is sent using RRC signaling or the 2nd RNTI or using an information field in DCI signaling, The operating mode instruction information is for indicating UE work under default operating mode, to indicate transmission block instruction letter to the UE Breath；
RV information is indicated to the UE using PDCCH.
9. a kind of data transmission method, which is characterized in that be applied to UE, comprising:
Receive the data packet that network side equipment is sent from multiple TRP；
The transmission block instruction information and RV information that the network side equipment is sent are received, the transmission block instruction information is for referring to Whether the data packet for showing that the multiple TRP is sent corresponds to identical transmission block TB；
When the data packet for indicating that information determines that the multiple TRP is sent according to the transmission block corresponds to identical TB, in conjunction with The RV information merges the multiple TRP data packet sent.
10. according to the method described in claim 9, it is characterized in that, the transmission block for receiving the network side equipment and sending Indicate information and RV information, comprising:
The DCI signaling that the network side equipment is sent is received, the DCI signaling is used to indicate the transmission block instruction information；Or Person receives the first RNTI that the network side equipment is sent, to obtain the transmission block instruction information；Or receive the network Side apparatus indicates information using the operating mode that RRC signaling is sent, and the operating mode instruction information is for indicating that UE work exists Under default operating mode, to obtain the transmission block instruction information；
The DCI signaling that the network side equipment is sent is received, to obtain the RV information.
11. according to the method described in claim 9, it is characterized in that, the transmission block for receiving the network side equipment and sending Indicate information and RV information, comprising:
The network side equipment is received to send out using RRC signaling or the 2nd RNTI or using an information field in DCI signaling The operating mode instruction information sent, the operating mode instruction information is for indicating UE work under default operating mode, to obtain Transmission block is taken to indicate information；
The RV information is obtained by PDCCH.
12. according to the method for claim 11, which is characterized in that if receiving the network side equipment utilizes RRC signaling The operating mode of transmission indicates information, described when the data for determining the multiple TRP transmission according to transmission block instruction information When packet corresponds to identical TB, the multiple TRP data packet sent is merged in conjunction with the RV information, comprising:
It monitors multiple and different PDCCH and PDSCH is detected, and when receiving multiple and different PDSCH, in conjunction with the RV Information merges the data packet of the multiple TRP.
13. according to the method for claim 11, which is characterized in that if receiving the network side equipment utilizes the 2nd RNTI The operating mode of transmission indicates information, described when the data for determining the multiple TRP transmission according to transmission block instruction information When packet corresponds to identical TB, the multiple TRP data packet sent is merged in conjunction with the RV information, comprising:
It determines whether the 2nd RNTI is the RNTI of high reliable communication mode-specific, and is determining that the 2nd RNTI is that height can When RNTI dedicated by communication pattern, the data packet sent from multiple TRP is merged in conjunction with the RV information.
14. a kind of communication equipment, comprising: transceiver, memory, processor and be stored on the memory and can be at the place The computer program run on reason device；It is characterized in that,
The processor executes following process for reading the program in memory:
When determining user equipment (UE) in multiple transmission receiving point TRP transmitting data packets, determination is for present data transmission Redundancy versions RV information；Determine the corresponding scheduling control information of multiple TRP；To UE instruction transmission block instruction information and institute RV information is stated, whether the data packet that the transmission block instruction information is used to indicate the multiple TRP corresponds to identical transmission block TB；
The transceiver, for sending the data packet of the multiple TRP to the UE using the scheduling control information.
15. equipment according to claim 14, which is characterized in that the processor is also used to read the journey in memory Sequence executes following process:
According to pre-set RV circle transmission mechanism, the RV information for being used for present data transmission is determined.
16. equipment according to claim 15, which is characterized in that the processor is also used to read the journey in memory Sequence executes following process:
It is the multiple when the number of TRP in the multiple TRP is less than or equal to the RV number in the RV version set TRP successively selects different RV index RV index in RV version set predetermined；As TRP in the multiple TRP When number is greater than the RV number in the RV version set, the n-th using the method for recycling, from the multiple TRP TRP starts, and since first RV index in the RV version set, successively selects again in the RV version set It selects；The wherein RV number+1 in N=RV version set；
When retransmitting, the multiple TRP RV used in used RV index and previous transmission in each transmission Index is different；If the RV index in the RV version set has been completely used for transmitting, recycling method is used, from First RV index in the RV version set starts to reselect.
17. equipment according to claim 14, which is characterized in that the processor is also used to read the journey in memory Sequence executes following process:
Using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP, to dispatch identical number It is transmitted on the multiple TRP according to packet；The PDCCH indicates that identical data packet is transmitted on different TRP and occupies phase Same or different resource；
Alternatively, dispatching identical data packet in institute respectively as the scheduling control information of the multiple TRP using multiple PDCCH It states and carries out data transmission on multiple TRP.
18. equipment according to claim 14, which is characterized in that the processor is also used to read the journey in memory Sequence executes following process:
Indicate that the transmission block indicates information to the UE using Downlink Control Information DCI signaling；Or
PDCCH is scrambled using the first radio network temporary identifier RNTI, to indicate the transmission block instruction to the UE Information；Or
Operating mode, which is sent, to UE using radio resource control RRC signaling indicates that information, the operating mode instruction information are used for UE work is indicated under default operating mode, to indicate that transmission block indicates information.
19. equipment according to claim 14, which is characterized in that the processor is also used to read the journey in memory Sequence executes following process:
It is the DMRS port according to the mapping relations of TRP and demodulated reference signal port set DMRS port group RV index RV index is arranged in the corresponding TRP data of group, and indicates the RV index to the UE using DCI signaling.
20. equipment according to claim 19, which is characterized in that the processor is also used to read the journey in memory Sequence executes following process:
It is fixed in advance when the number of the DMRS port group is less than or equal to the RV number in the RV version set Different RV index RV index is successively selected in the RV version set of justice；When the number of the DMRS port group is greater than When RV number in the RV version set, the m-th using the method for recycling, from the DMRS port group DMRS port group starts, since first RV index in the RV version set, in the RV version set Successively reselect；The wherein RV number+1 in M=RV version set；
When retransmitting, the DMRS port group used RV index and previous transmission in each transmission are used RV index it is different；If the RV index in the RV version set has been completely used for transmitting, recycling side is used Method is reselected since first RV index in the RV version set.
21. equipment according to claim 14, which is characterized in that the processor is also used to read the journey in memory Sequence executes following process:
Operating mode instruction information is sent using RRC signaling or the 2nd RNTI or using an information field in DCI signaling, The operating mode instruction information is for indicating UE work under default operating mode, to indicate transmission block instruction letter to the UE Breath；
RV information is indicated to the UE using PDCCH.
22. a kind of communication equipment, comprising: transceiver, memory, processor and be stored on the memory and can be at the place The computer program run on reason device；It is characterized in that,
The transceiver, the data packet sent from multiple TRP for receiving network side equipment；Receive the network side equipment hair The transmission block instruction information and RV information sent, the transmission block instruction information are used to indicate the data that the multiple TRP is sent Whether packet corresponds to identical transmission block TB；
The processor executes following process for reading the program in memory:
When the data packet for indicating that information determines that the multiple TRP is sent according to the transmission block corresponds to identical TB, in conjunction with The RV information merges the multiple TRP data packet sent.
23. equipment according to claim 22, which is characterized in that the transceiver, for receiving the network side equipment The DCI signaling of transmission, the DCI signaling are used to indicate the transmission block instruction information；Or receive the network side equipment hair The first RNTI sent, to obtain the transmission block instruction information；Or receive what the network side equipment was sent using RRC signaling Operating mode indicates information, and the operating mode instruction information is for indicating UE work under default operating mode, to obtain State transmission block instruction information；The DCI signaling that the network side equipment is sent is received, to obtain the RV information.
24. equipment according to claim 22, which is characterized in that
The transceiver, the DCI signaling sent for receiving the network side equipment receive the network side equipment and utilize RRC Signaling or the 2nd RNTI indicate information, the work using the operating mode that an information field in DCI signaling is sent Mode indication information is for indicating UE work under default operating mode, to obtain transmission block instruction information；
The processor executes following process for reading the program in memory:
The RV information is obtained by PDCCH.
25. equipment according to claim 24, which is characterized in that the processor, for reading the program in memory, Execute following process:
It monitors multiple and different PDCCH and PDSCH is detected, and when receiving multiple and different PDSCH, in conjunction with the RV Information merges the data packet of the multiple TRP.
26. equipment according to claim 22, which is characterized in that the processor, for reading the program in memory, Execute following process:
It determines whether the 2nd RNTI is the RNTI of high reliable communication mode-specific, and is determining that the 2nd RNTI is that height can When RNTI dedicated by communication pattern, the data packet sent from multiple TRP is merged in conjunction with the RV information.
27. a kind of data transmission device characterized by comprising
Determining module, for when determining user equipment (UE) in multiple transmission receiving point TRP transmitting data packets, determination to be for working as The redundancy versions RV information of preceding data transmission；
Processing module, for determining the corresponding scheduling control information of multiple TRP；
Indicating module, for indicating information to UE instruction transmission block instruction information and the RV information, the transmission block Whether the data packet for being used to indicate the multiple TRP corresponds to identical transmission block TB；
Sending module, for sending the data packet of the multiple TRP to the UE using the scheduling control information.
28. device according to claim 27, which is characterized in that the processing module is used for:
Using a physical downlink control channel PDCCH as the scheduling control information of the multiple TRP, to dispatch identical number It is transmitted on the multiple TRP according to packet；The PDCCH indicates that identical data packet is transmitted on different TRP and occupies phase Same or different resource；
Alternatively, dispatching identical data packet in institute respectively as the scheduling control information of the multiple TRP using multiple PDCCH It states and carries out data transmission on multiple TRP.
29. a kind of data transmission device characterized by comprising
First receiving module, the data packet sent from multiple TRP for receiving network side equipment；
Second receiving module, for receiving the transmission block instruction information and RV information that the network side equipment is sent, the biography Defeated piece of instruction information is used to indicate whether the data packet that the multiple TRP is sent corresponds to identical transmission block TB；
Processing module indicates that the data packet that information determines that the multiple TRP is sent corresponds to phase according to the transmission block for working as With TB when, the multiple TRP data packet sent is merged in conjunction with the RV information.
30. device according to claim 29, which is characterized in that second receiving module includes:
First receiving submodule, the DCI signaling sent for receiving the network side equipment, the DCI signaling are used to indicate institute State transmission block instruction information；Or the first RNTI that the network side equipment is sent is received, to obtain the transmission block instruction letter Breath；Or it receives the network side equipment and indicates information, the operating mode instruction letter using the operating mode that RRC signaling is sent Breath is for indicating UE work under default operating mode, to obtain the transmission block instruction information；
Second receiving submodule, the DCI signaling sent for receiving the network side equipment, to obtain the RV information.
31. device according to claim 29, which is characterized in that second receiving module includes:
Third receiving submodule, for receiving the network side equipment using RRC signaling or the 2nd RNTI or utilizing DCI letter The operating mode that an information field in order is sent indicates information, and the operating mode instruction information is for indicating UE work pre- If under operating mode, to obtain transmission block instruction information；
Acquisition submodule, for obtaining the RV information by PDCCH.
32. a kind of computer readable storage medium, for storing computer program, which is characterized in that the computer program quilt It realizes when processor executes such as the step in method described in any item of the claim 1 to 8；Alternatively, the computer program The step in the method as described in any one of claim 9 to 13 is realized when being executed by processor.
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