CN104320812A - Joint transmission method, device and system - Google Patents
Joint transmission method, device and system Download PDFInfo
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- CN104320812A CN104320812A CN201410540142.7A CN201410540142A CN104320812A CN 104320812 A CN104320812 A CN 104320812A CN 201410540142 A CN201410540142 A CN 201410540142A CN 104320812 A CN104320812 A CN 104320812A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/02—Data link layer protocols
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Abstract
The embodiment of the invention provides a joint transmission method, a joint transmission device and a joint transmission system, relates to the field of mobile communication, and is used for achieving that modification of hardware in a communication system in the prior art can be reduced as much as possible during the process of transmitting a same mobile device by different communication systems. The joint transmission method comprises: receiving a downlink data package from a core network; sending the first downlink data package to a first network element, thereby sending the first downlink data package to a UE through a first communication system, and sending a second downlink data package to a second network element, thereby sending the second downlink data package to a UE through a second communication system; the first network element is used for processing the first downlink data package according to the PDCP layer protocol in the first communication system, and the second network element is used for processing the second downlink data package according to the PDCP layer protocol in the second communication system.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to a kind of method of joint transmission, Apparatus and system.
Background technology
Along with the development of wireless communication technology, communication system needs increasing transmission rate, to meet the requirement of mobile device transmission rate.
In order to realize the transmission of higher rate, 3GPP (The 3
rdgeneration Partnership Project, third generation partner program) propose carrier aggregation technology, utilize multiple carrier wave simultaneously to same UE (User Equipment, subscriber equipment) mobile device services.But existing carrier aggregation technology can only be polymerized the multiple carrier waves in the communication system of same standard, that is the data of the communication system of a standard to same UE can only be utilized to transmit at synchronization.
In current communications systems, the communication system of multiple types, as LTE (Long Term Evolution, Long Term Evolution) system and WCDMA, (Wideband Code Division Multiple Access (Wideband Code Division Multiple Access (WCDMA)) system exists for a long time jointly.
LTE system and WCDMA system have identical layered protocol stack, up PHY (physical layer successively from the bottom, physical layer), MAC (Medium Access Control, medium access control) layer, RLC (Radio Link Control, wireless spread-spectrum technology) layer, PDCP (Packet Data Convergence Protocol, PDCP) layer, every one deck independently processes data, has data interaction between every one deck and adjacent layer.
Be that same UE carries out transmission data in order to utilize the communication system of different systems at synchronization, prior art proposes in MAC layer or PHY layer the communications system transmission of user data by different systems.Exemplary, for downlink data, core net by the transfer of data of this user to the PDCP layer of LTE system, through function treatment such as excessive compression, encryptions, the transfer of data after process is carried out the respective handling of rlc layer to the rlc layer of LTE system, then data is distributed, part transfer of data processes to the MAC layer of LTE, remainder transfer of data processes to the MAC layer of WCDMA, then after respective PHY layer process, sends data to this UE by eating dishes without rice or wine.
State in realization and utilize different systems communication system to carry out in the process of transfer of data to same mobile device, inventor finds that in prior art, at least there are the following problems: the function realized due to different layers is different, the correlation of bottom and hardware of more leveling off to is larger, functional realiey more complicated, so realized the scheme of different systems communication system joint transmission in prior art by the MAC layer of lower level and PHY layer, larger to the change of the hardware in communication system in prior art, so that in implementation procedure time because expense is excessive, and to be difficult to carry out.
Summary of the invention
Embodiments of the invention provide a kind of method, Apparatus and system of different systems communication system joint transmission, realize different systems communication system to reduce as far as possible in the process of the transfer of data of same mobile device to communication system in prior art can in the change of hardware.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, embodiments provides a kind of method of joint transmission, comprising: polymerization discharge device is from core net downlink data receiving bag; First downstream data bag in described downlink data packet is sent to the first network element by described polymerization discharge device, to make, by the first communication system, described first downstream data bag is sent to UE, and the second downstream data bag in described downlink data packet is sent to the second network element, to make, by second communication system, described second downstream data bag is sent to described UE; Wherein, described first network element is arranged in described first communication system, for processing described first downstream data bag according to the PDCP layer protocol in described first communication system; Described second network element is arranged in described second communication system, for processing described second downstream data bag according to the PDCP layer protocol in described second communication system; Described second downstream data bag is the packet in described downlink data packet except described first downstream data bag.
Second aspect, embodiments provides a kind of method of joint transmission, comprising: network element receives the downlink data packet that polymerization discharge device issues; Described network element processes described downlink data packet according to the PDCP layer protocol in affiliated communication system, and by described communication system by described downstream packet transmission to UE.
The third aspect, embodiments provides a kind of polymerization discharge device, comprising: receiving element, for from core net downlink data receiving bag; Transmitting element, for the first downstream data bag in described downlink data packet is sent to the first network element, to make, by the first communication system, described first downstream data bag is sent to UE, and the second downstream data bag in described downlink data packet is sent to the second network element, to make, by second communication system, described second downstream data bag is sent to described UE; Wherein, described first network element is arranged in described first communication system, for processing described first downstream data bag according to the PDCP layer protocol in described first communication system; Described second network element is arranged in described second communication system, for processing described second downstream data bag according to the PDCP layer protocol in described second communication system; Described second downstream data bag is the packet in described downlink data packet except described first downstream data bag.
Fourth aspect, embodiments provides a kind of network element, comprising: receiving element, for receiving the downlink data packet that polymerization discharge device issues; That of process is far away, for processing described downlink data packet according to the PDCP layer protocol in affiliated communication system; Transmitting element, for by described communication system by described downstream packet transmission to UE.
5th aspect, embodiments provides a kind of system, comprising: polymerization discharge device, the first network element and the second network element; Described polymerization discharge device is the polymerization discharge device described in above-described embodiment; Described first network element is the network element described in above-described embodiment; Described second network element is the network element described in above-described embodiment.
Embodiments provide a kind of method of joint transmission, Apparatus and system, polymerization discharge device is from core net downlink data receiving bag; First downstream data bag in downlink data packet is sent to the first network element, to make, by the first communication system, first downstream data bag is sent to UE, and the second downstream data bag in downlink data packet is sent to the second network element, to make, by second communication system, second downstream data bag is sent to described UE.The packet that so just just core net can be issued from PDCP layer is by processing respectively two different communication systems.Due to the process in difference rlc layer, MAC layer, MAC layer, and the process being sent to UE is identical with process of the prior art, so the present embodiment does not need the framework below to PDCP layer in prior art to change, simultaneously because PDCP layer and above most process are processed by the form of software, so the present invention mainly changes the process of software protocol function of the prior art, relative to the method in background technology, the change of hardware is reduced greatly.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of the method for a kind of joint transmission that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is communication system architecture schematic diagram in prior art;
A kind of system architecture schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The another kind of system architecture schematic diagram that Fig. 4 provides for the embodiment of the present invention;
The another kind of system architecture schematic diagram that Fig. 5 provides for the embodiment of the present invention;
The schematic flow sheet of the method for the another kind of joint transmission that Fig. 6 provides for the embodiment of the present invention;
The schematic flow sheet of the method for the another kind of joint transmission that Fig. 7 provides for the embodiment of the present invention;
The schematic flow sheet of the method for the another kind of joint transmission that Fig. 8 provides for the embodiment of the present invention;
A kind of functional schematic being polymerized discharge device that Fig. 9 provides for the embodiment of the present invention;
The functional schematic of the another kind polymerization discharge device that Figure 10 provides for the embodiment of the present invention;
The functional schematic of the another kind polymerization discharge device that Figure 11 provides for the embodiment of the present invention;
The functional schematic of a kind of network element that Figure 12 provides for the embodiment of the present invention;
The structural representation of a kind of system that Figure 13 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of method of joint transmission, as shown in Figure 1, comprising:
101, discharge device is polymerized from core net downlink data receiving bag.
It should be noted that, the downlink data packet of the description in all embodiments of the present invention is the packet being sent to a UE for core net, but all embodiments of the present invention are all applicable to any one UE being connected to the first communication system and second communication system (User Equipment, subscriber equipment) simultaneously.
Concrete, polymerization discharge device receives at least two TCP/IP (Transmission Control Protocol/Internet Protocol, the transmission control protocol/Internet Protocol) packet needing to be sent to a certain UE that core net issues.
102, be polymerized discharge device and the first downstream data bag in downlink data packet is sent to the first network element, and the second downstream data bag in described downlink data packet is sent to the second network element.
Wherein, first network element is arranged in the first communication system, for according to PDCP (the Packet Data Convergence Protocol in the first communication system, PDCP) layer protocol processes first downstream data bag, second network element is arranged in second communication system, for processing second downstream data bag according to the PDCP layer protocol in second communication system; Second downstream data bag is the packet in downlink data packet except first downstream data bag.
For downlink data, core concept of the present invention is under the precondition of communication system (the first communication system and second communication system) that simultaneously can be connected to two different systems at UE, by core network to the packet of this UE is just respectively allocated to the first communication system and second communication system from PDCP layer, be dispensed to packet in the first communication system according to the first communication system PDCP layer protocol, RLC (Radio Link Control, wireless spread-spectrum technology) layer protocol, MAC (Medium Access Control, medium access control) layer protocol and PHY (physical layer, physical layer) agreement processes, and be sent to UE by the base station in the first communication system, simultaneously, the packet be dispensed in second communication system processes according to second communication system PDCP layer protocol, rlc layer agreement, mac-layer protocol and PHY layer agreement, and be sent to UE by the base station in second communication system, finally realize utilizing the communication system of different systems to combine and the data of this UE are transmitted.
For all embodiments in the present invention, specifically arrange about the first communication system, the first network element, second communication system and the second network element, following two kinds of situations can be comprised:
The first situation, first communication system is LTE (Long Term Evolution, Long Term Evolution) system or LTE-A (LTE-Advanced, the follow-up evolution of LTE) system, first network element is eNodeB (the Evolved Node B in LTE system or lte-a system, evolved Node B, the title of base station in LTE); Second communication system is WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) system or HSPA (High Speed Downlink Packet Access, high speed downlink packet access technology) system or HSPA evolution system; Second network element is the RNC (Radio Network Controller, radio network controller) in WCDMA system or HSPA system or HSPA evolution system.
The second situation, the first communication system is WCDMA system or HSPA system or HSPA evolution system; First network element is the RNC in WCDMA system or HSPA or HSPA evolution system system; Second communication system is LTE system or lte-a system; Second network element is the eNodeB in LTE system or lte-a system.
In prior art, in WCDMA (or HSPA or HSPA evolution system) system and LTE (or LTE-A) system, the framework of network element as shown in Figure 2.Wherein, the user data of WCDMA (or HSPA or HSPA evolution system) system is through NodeB (i.e. base station), RNC, SGSN (Serving GPRS Support Node, GPRS serving GPRS support node) be connected to core net, LTE (or LTE-A) system user data are through eNodeB, P-GW (Packet Data Network Gateway, grouped data network gateway), S-GW (Serving Gateway, gateway), MME (Mobility Management Entity, mobile management entity) is connected to core net.
It should be noted that, if regard the PDCP module of the first network element and the PDCP module of the second network element by according to PDCP layer protocol to the part that downlink data packet processes.So in the first communication system and second communication system except PDCP module, also comprise RLC (Radio Link Control, wireless spread-spectrum technology) module, MAC (Medium Access Control, medium access control) module, PHY (physical layer, physical layer) module, for processing packet according to the rlc layer agreement in respective communication system, mac-layer protocol and PHY layer agreement.
It should be noted that, different communication systems carries out the processing procedure of PDCP layer, rlc layer, MAC layer and PHY layer, with in prior art, PDCP layer is carried out to TCP/IP data, rlc layer, MAC layer are identical with the processing procedure of PHY layer, the present invention does not repeat them here.
The RLC module of the first communication system, MAC module, PHY module whether in the first network element depending on the concrete condition of the first communication system, in like manner, the RLC module of second communication system, MAC module, PHY module whether in the second network element depending on the concrete condition of second communication system.
Concrete, if communication system (the first communication system or second communication system) be LTE system or lte-a system time, network element (the first network element or the second network element) is eNodeB, and now, the RLC module of this communication system, MAC module, PHY module are all in the enodeb.If communication system (the first communication system or second communication system) be WCDMA system or HSPA system or HSPA evolution system time, network element (the first network element or the second network element) is RNC, now, the RLC module of this communication system, MAC module, PHY module are in NodeB (base station).
No matter the actual setting for the first communication system, the first network element, second communication system and the second network element is the first situation or the second situation, the framework in the embodiment of the present invention all as shown in Figure 3.
It should be noted that, in Fig. 3, polymerization discharge device is independent of the first network element and the second network element, namely discharge device is polymerized independent of RNC and eNodeB, now, before step 102, also need to set up polymerization discharge device and set up connection between connection between described first network element PDCP layer and the PDCP layer of described second network element respectively, be distributed to the TCP/IP packet of the first network element and the second network element for transmission convergence discharge device.But in entity apparatus, be polymerized discharge device also can be integrated in the first network element or the second network element, be namely polymerized discharge device and be integrated in RNC or eNodeB.When being polymerized discharge device and being integrated in RNC, system architecture as shown in Figure 4; When being polymerized discharge device and being integrated in eNodeB, system architecture as shown in Figure 5, now, before step 102, also needs the connection of setting up between RNC and eNodeB, is distributed to the TCP/IP packet of the first network element or the second network element for transmission convergence discharge device.
Concrete, polymerization discharge device is divided into two groups downlink data packet, i.e. first downstream data bag and second downstream data bag, first downstream data bag is sent to the first network element of the first communication system, first network element carries out the process of PDCP layer to first downstream data bag, then first downstream data is wrapped in the first communication system and successively process according to the processing mode of rlc layer, MAC layer and PHY layer in the first communication system, be sent to UE finally by the base station in the first communication system; Simultaneously, second downstream data bag is sent to the second network element of second communication system, second network element carries out the process of PDCP layer to second downstream data bag, then second downstream data is wrapped in second communication system and successively process according to the processing mode of rlc layer, MAC layer and PHY layer in second communication system, be sent to UE finally by the base station in second communication system.
Embodiments provide a kind of method of joint transmission, polymerization discharge device is from core net downlink data receiving bag; First downstream data bag in downlink data packet is sent to the first network element, to make, by the first communication system, first downstream data bag is sent to UE, and the second downstream data bag in downlink data packet is sent to the second network element, to make, by second communication system, second downstream data bag is sent to described UE.The packet that so just just core net can be issued from PDCP layer is by processing respectively two different communication systems.Due to the process in difference rlc layer, MAC layer, MAC layer, and the process being sent to UE is identical with process of the prior art, so the present embodiment does not need the framework below to PDCP layer in prior art to change, simultaneously because PDCP layer and above most process are processed by the form of software, so the present invention mainly changes the process of software protocol function of the prior art, relative to the method in background technology, the change of hardware is reduced greatly.
Embodiments provide a kind of method of joint transmission, as shown in Figure 6, comprising:
601, network element receives the downlink data packet that polymerization discharge device issues.
It should be noted that, the network element in the present embodiment can be the first network element in above-described embodiment, also can be the second network element in above-described embodiment.Herein, be stand in any one network element angle to describe.
Concrete, network element receives the TCP/IP packet that polymerization discharge device issues from core net.
602, network element processes downlink data packet according to the PDCP layer protocol in affiliated communication system, and passes through this communication system by downstream packet transmission to UE.
It should be noted that concrete, after network element receives TCP/IP packet, according to PDCP layer protocol in this communication system, downlink data packet is processed, then RLC module, MAC module and the PHY module passed in this communication system after process is successively processed according to the processing mode of the rlc layer in this communication system, MAC layer and PHY layer respectively, be sent to UE finally by base station.
It should be noted that, network element is identical according to the processing procedure of PDCP layer protocol to TCP/IP packet with this communication system in prior art to the processing procedure of downlink data according to the PDCP layer protocol in affiliated communication system, does not repeat them here.
Embodiments provide a kind of method of joint transmission, comprising: network element receives the downlink data packet that polymerization discharge device issues, network element processes downlink data packet according to the PDCP layer protocol in affiliated communication system, and by communication system by downstream packet transmission to UE, the packet that core net issues by such network element is by processing respectively in two different communication systems, and at difference rlc layer, MAC layer, the process of MAC layer, and the process being sent to UE is identical with process of the prior art, so the present embodiment does not need the framework below to PDCP layer in prior art to change, simultaneously because PDCP layer and above most process are processed by the form of software, so the present invention mainly changes the process of software protocol function of the prior art, relative to the method in background technology, the change of hardware is reduced greatly.
Embodiments provide a kind of method of joint transmission, as shown in Figure 7, comprising:
701, discharge device is polymerized from core net downlink data receiving bag.
Concrete, can refer step 101, do not repeat them here.
702, be polymerized discharge device each packet in downlink data packet is numbered.
Concrete, the downlink data packet of reception, according to the sequencing of content between downlink data packet, is numbered by polymerization discharge device successively.
It should be noted that, because the first communication system is different from the transmission rate of second communication system, the speed being dispensed to the data packet transmission in two communication systems is different, so the order of packet that UE receives is not the order between original packet, if now UE still carries out packet parsing according to receiving the order of packet, the error in data obtained so may be resolved.
Exemplary, if core net needs the data transferring to UE to be surrounded by 6, be followed successively by packet a, packet b, packet c, packet d, packet e, packet f.Now, by packet a, packet b, packet c by the first communications system transmission, packet d, packet e, packet f are by second communication system transfers, if the first communication system downlink transmission rate is two times of second communication system descending transmission rate, the order that so all packets arrive UE is packet a, packet b, packet d, packet c, packet e, packet f, now, if UE resolves according to the order receiving packet, the alphabetic data order originally of the data so obtained is not inconsistent, and causes the error in data parsed.
To sum up, so need to be numbered packet according to the order of the packet received from core net, according to numbering, packet is resolved after receiving packet to make UE.
703, be polymerized discharge device and obtain the downlink transmission rate of the first communication system and the downlink transmission rate of second communication system.
It should be noted that, in communication system, the transmission rate of every one deck is different, downlink transmission rate in the present embodiment can be the downlink transmission rate of random layer, but the downlink transmission rate of the first communication system obtained and the downlink transmission rate of second communication system must be the transmission rates of corresponding layer.Such as, the downlink transmission rate of the first communication system is the downlink transmission rate of the first communication system PDCP layer, and the downlink transmission rate of second communication system corresponding so is with it exactly the downlink transmission rate of second communication system PDCP layer.
It should be noted that, the downlink transmission rate of the downlink transmission rate and second communication system that obtain the first communication system is to ensure when transmitting packet, the packet of each communications system transmission can be dispensing by, to ensure all data packet transmission in the shortest time to UE according to the downlink transmission rate of two communication systems.
It should be noted that, polymerization discharge device periodically can obtain the downlink transmission rate of the first communication system and the downlink transmission rate of second communication system, also aperiodicity can obtain the downlink transmission rate of the first communication system and the downlink transmission rate of second communication system.The present invention does not limit this.
Further, the downlink transmission rate of the downlink transmission rate of the first communication system received and second communication system can store by polymerization discharge device, and often again obtain and once just the row that takes in preserved is upgraded, in such cases, fixing sequencing is not had between step 701-702 and step 703, first can perform step 701-702, then perform step 703; Also first can perform step 703, then perform step 701-702; Can also step 701-702 and step 703 perform, the present embodiment first performs step 701-702 simultaneously, then to perform step 703 be example.Or, polymerization discharge device also can when receiving the downlink data packet of core network at every turn, obtain the downlink transmission rate of the first communication system and the downlink transmission rate of second communication system, in such cases, do not need to store the downlink transmission rate of the first communication system and the downlink transmission rate of second communication system, in such cases, first must perform step 701, then step 702 and 703 is performed, but the order between step 702 and step 703 does not limit, first can perform step 702, then perform step 703; Also first can perform step 703, then perform step 702; Can also step 702 and step 703 perform, the present embodiment first performs step 702 simultaneously, then to perform step 703 be example.
704, be polymerized discharge device and from downlink data packet, determine first downstream data bag and second downstream data bag according to the downlink transmission rate of the downlink transmission rate of the first communication system and second communication system.
Wherein, second downstream data bag is the packet in downlink data packet except first downstream data bag.
Step 704 can have following two kinds of specific implementations, and the first implementation, according to formula
The number of packet in the number of the packet of dispensed to the first communication system and second communication system.Wherein, N be first network element receive from the total number of the packet of core network, v
1the downlink transmission rate of the first communication system, v
2the downlink transmission rate of second communication system, n
1the packet number needing to be dispensed to the first communication system, n
2it is the packet number needing to be dispensed to second communication system.
The second implementation, according to the principle that the size of all packets being dispensed to the first communication system is equal as far as possible with the ratio of the downlink transmission rate of second communication system with the size of all packets being dispensed to second communication system with the ratio of the first communication system downlink transmission rate, distribute data bag.
It should be noted that, owing to being only divided into first downstream data bag and second downstream data bag in downlink data packet, so just define second downstream data bag while determining first downstream data bag in step 704.
705, be polymerized discharge device and the first downstream data bag in downlink data packet is sent to the first network element, the first network element receives first downstream data bag; Second downstream data bag in downlink data packet is sent to the second network element by polymerization discharge device, and the second network element receives second downstream data bag.
Wherein, first network element is arranged in the first communication system, for processing described first downstream data bag according to the PDCP layer protocol in described first communication system, second network element is arranged in second communication system, for processing second downstream data bag according to the PDCP layer protocol in second communication system.
Concrete, can refer step 102, do not repeat them here.
706, the first network element processes first downstream data bag according to the PDCP layer protocol in the first communication system, and by the first communication system, first downstream data bag is transferred to UE.
Concrete, can refer step 602, do not repeat them here.
707, the second network element processes second downstream data bag according to the PDCP layer protocol in second communication system, and by second communication system, second downstream data bag is transferred to UE.
Concrete, can refer step 602, do not repeat them here.
It should be noted that, step 706 is unfixed with the execution sequence of step 707, first can perform step 706, then perform step 707; Also first can perform step 707, then perform step 706, can also step 706 and step 707 perform, the present invention does not limit this simultaneously.The present embodiment first performs step 706, then to perform step 707 be example.
708, UE is according to the packet received from the first communication system and the packet from second communication system acceptance, according to numbering to packet sequential processes.
Concrete, UE is receiving packet that the first communication system sends and the packet that second communication system sends, and to resolve and obtain the data of carrying in packet according to the numbering of packet to all packet sequence.
It should be noted that, UE just starts to process, as long as the numbering of the packet received can just can process continuously after all packets such as not needing arrive.Exemplary, core net needs the data transferring to UE to be surrounded by six, packet 1 to packet 6 is respectively after numbering, the suitable order of the packet that UE receives is packet 1, packet 3, now, as long as receive packet 2, UE just can start to start to resolve successively to packet 1, packet 2 and packet 3, and do not need by the time six packets to receive just to resolve.
Embodiments provide a kind of method of joint transmission, polymerization discharge device is from core net downlink data receiving bag, by downlink data packet number, and the first communication system will be respectively allocated in downlink data packet and second communication system processes according to the downlink transmission rate of the first communication system and the downlink transmission rate of second communication system, UE is transferred to respectively eventually through the first communication system and second communication system, UE processes all packet sequence according to numbering, like this, the packet that just just core net can be issued from PDCP layer is by processing respectively two different communication systems, and at difference rlc layer, MAC layer, the process of MAC layer, and the process being sent to UE is identical with process of the prior art, so the present embodiment does not need the framework below to PDCP layer in prior art to change, simultaneously because PDCP layer and above most process are processed by the form of software, so the present invention mainly changes the process of software protocol function of the prior art, relative to the method in background technology, the change of hardware is reduced greatly.Further, by being dispensing by the packet of the first communication system and second communication system transfers according to the downlink transmission rate of the first communication system and the downlink transmission rate of second communication system, two communication systems can be made full use of and carry out transmitting downlink data bag, all downstream packet transmission were shortened as far as possible to the time of UE.
Embodiments provide a kind of method of joint transmission, the present embodiment is for upstream data bag, and as shown in Figure 8, the method comprises:
801, the first upstream data bag that the RLC module that the first network element receives the first communication system sends.
Concrete, UE, by after needing to be processed by the PHY layer of the first communication system, MAC layer, rlc layer by the partial data of core network, transfers to the first network element.
Further, if all needs is numbered by the packet of core network by UE, the first upstream data bag that so the first network element receives carries numbering.
802, the second upstream data bag that the RLC module that the second network element receives second communication system sends.
It should be noted that, the first upstream data bag in the present embodiment and the second upstream data bag are the packets needing to transfer to core net from same UE.
Concrete, UE, by after needing to be processed by the PHY layer of second communication system, MAC layer, rlc layer by the partial data of core network, transfers to the second network element.
Further, if all needs is numbered by the packet of core network by UE, the second upstream data bag that so the second network element receives carries numbering.
803, the first network element processes the first upstream data bag according to the PDCP layer protocol in the first communication system, and the first upstream data bag after process is sent to polymerization discharge device, and polymerization discharge device receives the first upstream data bag.
It should be noted that, the process that the first network element processes the first upstream data bag according to the PDCP layer protocol in the first communication system, identical with the processing mode of prior art first communication system PDCP layer to the packet that rlc layer reports, do not repeat them here.
804, the second network element processes the second upstream data bag according to the PDCP layer protocol in second communication system, and the second upstream data bag after process is sent to polymerization discharge device, and polymerization discharge device receives the second upstream data bag.
It should be noted that, the process that the second network element processes the second upstream data bag according to the PDCP layer protocol in second communication system, identical with the processing mode of prior art second communication system PDCP layer to the packet that rlc layer reports, do not repeat them here.
It should be noted that, the order between step 801,802,803,804 only needs to ensure that step 801 is before step 803, and step 802 is before step 804.For step 801, sequencing between 803 and step 802,804, the present invention does not limit.
805, the first upstream data bag and the second upstream data bag combine and obtain upstream data bag by polymerization discharge device in order, and upstream data bag is transferred to core net.
It should be noted that, because the order sending packet through order and the UE place of the packet of the first communication system after second communication system transfers may not be identical, so need to process successively all packets according to the order of UE transmission packet originally, combine in order by the first upstream data bag and the second upstream data bag and obtain upstream data bag.
Further, under in the first upstream data bag, in each packet and the second upstream data bag, each packet all carries numbered situation, the first upstream data bag and the second upstream data bag are obtained upstream data bag according to number order combination according to the numbering of the first upstream data bag and the numbering of the second upstream data bag by polymerization discharge device.
It should be noted that, due to after the first upstream data bag and the second upstream data bag being combined according to numbering, it doesn't matter for the transmission in the core network of package number and packet, and numbering upstream data bag can carried is removed.
Embodiments provide a kind of method of joint transmission, the first upstream data bag that the RLC module that the first network element receives the first communication system sends, the second upstream data bag that the RLC module that the second network element receives second communication system sends; First network element processes the first upstream data bag according to the PDCP layer protocol in the first communication system, and the first upstream data bag after process is sent to polymerization discharge device, polymerization discharge device receives the first upstream data bag, second network element processes the second upstream data bag according to the PDCP layer protocol in second communication system, and the second upstream data bag after process is sent to polymerization discharge device, polymerization discharge device receives the second upstream data bag; First upstream data bag and the second upstream data bag combine and obtain upstream data bag by polymerization discharge device in order, and upstream data bag is transferred to core net.Like this, UE will need the data being sent to core net respectively by the first communication system PHY layer, MAC layer, rlc layer, the process of PDCP layer and second communication system PHY layer, MAC layer, rlc layer, the process of PDCP layer, then converge at polymerization discharge device, core net is sent to by polymerization discharge device, the present embodiment does not need the framework below to PDCP layer in prior art to change, simultaneously because PDCP layer and above most process are processed by the form of software, so the present invention mainly changes the protocol function of software aspect of the prior art, relative to the method utilizing the communication system joint transmission of different systems in background technology, the change of hardware is reduced greatly.
As shown in Figure 9, its a kind of functional schematic being polymerized discharge device provided for the embodiment of the present invention.Shown in figure 9, this polymerization discharge device comprises: receiving element 901 and transmitting element 902.
Receiving element 901, for from core net downlink data receiving bag;
Transmitting element 902, for the first downstream data bag in described downlink data packet is sent to the first network element, to make, by the first communication system, described first downstream data bag is sent to UE, and the second downstream data bag in described downlink data packet is sent to the second network element, to make, by second communication system, described second downstream data bag is sent to described UE; Wherein, described first network element is arranged in described first communication system, for processing described first downstream data bag according to the PDCP layer protocol in described first communication system; Described second network element is arranged in described second communication system, for processing described second downstream data bag according to the PDCP layer protocol in described second communication system; Described second downstream data bag is the packet in described downlink data packet except described first downstream data bag.
Further, as shown in Figure 10, this polymerization discharge device, also comprises; Processing unit 903;
Described polymerization discharge device independent of described first network element, and independent of described second network element; Or described polymerization discharge device is integrated in described first network element; Or described polymerization discharge device is integrated in described second network element;
Described processing unit 903, at described polymerization discharge device independent of described first network element, and when independent of described second network element, set up the connection between connection between described first network element PDCP layer and the PDCP layer of described second network element respectively; Or, when described polymerization discharge device is integrated in described first network element, set up the connection between the PDCP layer of described second network element; Or, when described polymerization discharge device is integrated in described second network element, set up the connection between the PDCP layer of described first network element.
Further, as shown in figure 11, this polymerization discharge device also comprises: acquiring unit 904 and determining unit 905;
Described acquiring unit 904, for the downlink transmission rate of the downlink transmission rate and described second communication system that obtain described first communication system;
Described determining unit 905, for determining described first downstream data bag and described second downstream data bag according to the downlink transmission rate of described first communication system and the downlink transmission rate of described second communication system from described downlink data packet.
Further, described processing unit 903, also for being numbered by each packet in described downlink data packet, recombinates to described first downstream data bag and described second downstream data bag according to described numbering to make described UE.
Further, described receiving element 901, also for the second upstream data bag of the first upstream data bag and described second reported by network elements that receive described first reported by network elements; Described first upstream data bag and described second upstream data bag are the packets that described UE transfers to described core net;
Described processing unit 903, also obtains upstream data bag for described first upstream data bag and described second upstream data bag being combined in order;
Described transmitting element 902, also for described upstream data bag is transferred to described core net.
Concrete, in described first upstream data bag, in each packet and described second upstream data bag, each packet all carries numbering;
Accordingly, described processing unit 903, specifically for obtaining described upstream data bag by described first upstream data bag and described second upstream data bag according to number order combination according to the numbering of described first upstream data bag and the numbering of described second upstream data bag.
Further, described first communication system comprises: Long Term Evolution LTE system, or the follow-up evolution lte-a system of LTE; Described first network element comprises: the base station eNodeB in described LTE system, or the eNodeB in described lte-a system; Described second communication system comprises; Wideband Code Division Multiple Access (WCDMA) WCDMA system, or high speed downlink packet access technology HSPA system, or HSPA evolution system; Described second network element comprises: the radio network controller (RNC) in described WCDMA system.Or the RNC in described HSPA system, or the RNC in described HSPA evolution system;
Or described first communication system comprises: described WCDMA system, or described HSPA system, or described HSPA evolution system; RNC in WCDMA system described in described first network element.Or the RNC in described HSPA system, or the RNC in described HSPA evolution system; Described second communication system comprises: described LTE system, or described lte-a system; Described second network element comprises: the eNodeB in described LTE system, or the eNodeB in described lte-a system.
Embodiments provide a kind of polymerization discharge device, polymerization discharge device is from core net downlink data receiving bag; First downstream data bag in downlink data packet is sent to the first network element, to make, by the first communication system, first downstream data bag is sent to UE, and the second downstream data bag in downlink data packet is sent to the second network element, to make, by second communication system, second downstream data bag is sent to described UE.The packet that so just just core net can be issued from PDCP layer is by processing respectively two different communication systems.Due to the process in difference rlc layer, MAC layer, MAC layer, and the process being sent to UE is identical with process of the prior art, so the present embodiment does not need the framework below to PDCP layer in prior art to change, simultaneously because PDCP layer and above most process are processed by the form of software, so the present invention mainly changes the process of software protocol function of the prior art, relative to the method in background technology, the change of hardware is reduced greatly.
As shown in figure 12, the functional schematic of its a kind of network element provided for the embodiment of the present invention.With reference to shown in Figure 12, this network element comprises: receiving element 1201, processing unit 1202 and transmitting element 1203.
Receiving element 1201, for receiving the downlink data packet that polymerization discharge device issues;
Processing unit 1202, for processing described downlink data packet according to the PDCP layer protocol in affiliated communication system;
Transmitting element 1203, for by described communication system by described downstream packet transmission to UE.
Further, described receiving element 1201, also for receiving the upstream data bag of the RLC module transmission of affiliated communication system;
Described processing unit 1202, also for processing described upstream data bag according to the PDCP layer protocol in affiliated communication system;
Described transmitting element 1203, also for the described upstream data bag after process is sent to described polymerization discharge device.
Embodiments provide a kind of network element, network element receives the downlink data packet that polymerization discharge device issues, network element processes downlink data packet according to the PDCP layer protocol in affiliated communication system, and by communication system by downstream packet transmission to UE, the packet that core net issues by such network element is by processing respectively in two different communication systems, and at difference rlc layer, MAC layer, the process of MAC layer, and the process being sent to UE is identical with process of the prior art, so the present embodiment does not need the framework below to PDCP layer in prior art to change, simultaneously because PDCP layer and above most process are processed by the form of software, so the present invention mainly changes the process of software protocol function of the prior art, relative to the method in background technology, the change of hardware is reduced greatly.
As shown in figure 13, the structural representation of its a kind of system provided for the embodiment of the present invention.With reference to shown in Figure 13, this system comprises: polymerization discharge device 1301, first network element 1302 and the second network element 1303;
Described polymerization discharge device 1301 is the polymerization discharge device described in above-described embodiment;
Described first network element 1302 is the network element described in above-described embodiment;
Described second network element 1303 is the network element described in above-described embodiment.
Embodiments provide a kind of communication system, the first upstream data bag that the RLC module that the first network element receives the first communication system sends, the second upstream data bag that the RLC module that the second network element receives second communication system sends; First network element processes the first upstream data bag according to the PDCP layer protocol in the first communication system, and the first upstream data bag after process is sent to polymerization discharge device, polymerization discharge device receives the first upstream data bag, second network element processes the second upstream data bag according to the PDCP layer protocol in second communication system, and the second upstream data bag after process is sent to polymerization discharge device, polymerization discharge device receives the second upstream data bag; First upstream data bag and the second upstream data bag combine and obtain upstream data bag by polymerization discharge device in order, and upstream data bag is transferred to core net.Like this, UE will need the data being sent to core net respectively by the first communication system PHY layer, MAC layer, rlc layer, the process of PDCP layer and second communication system PHY layer, MAC layer, rlc layer, the process of PDCP layer, then converge at polymerization discharge device, core net is sent to by polymerization discharge device, the present embodiment does not need the framework below to PDCP layer in prior art to change, simultaneously because PDCP layer and above most process are processed by the form of software, so the present invention mainly changes the protocol function of software aspect of the prior art, relative to the method utilizing the communication system joint transmission of different systems in background technology, the change of hardware is reduced greatly.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit comprises, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that hardware also can be adopted to add SFU software functional unit realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, be called for short ROM), random access memory (Random Access Memory, be called for short RAM), magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (19)
1. a method for joint transmission, is characterized in that, comprising:
Polymerization discharge device is from core net downlink data receiving bag;
First downstream data bag in described downlink data packet is sent to the first network element by described polymerization discharge device, to make, by the first communication system, described first downstream data bag is sent to user equipment (UE), and the second downstream data bag in described downlink data packet is sent to the second network element, to make, by second communication system, described second downstream data bag is sent to described UE; Wherein, described first network element is arranged in described first communication system, for processing described first downstream data bag according to the PDCP PDCP layer protocol in described first communication system; Described second network element is arranged in described second communication system, for processing described second downstream data bag according to the PDCP layer protocol in described second communication system; Described second downstream data bag is the packet in described downlink data packet except described first downstream data bag.
2. method according to claim 1, is characterized in that,
Described polymerization discharge device independent of described first network element, and independent of described second network element; Or described polymerization discharge device is integrated in described first network element; Or described polymerization discharge device is integrated in described second network element;
At described polymerization discharge device, the first downstream data bag in described downlink data packet is sent to the first network element, and before the second downstream data bag in described downlink data packet is sent to the second network element, also comprises:
At described polymerization discharge device independent of described first network element, and when independent of described second network element, described polymerization discharge device sets up the connection between connection between described first network element PDCP layer and the PDCP layer of described second network element respectively;
Or when described polymerization discharge device is integrated in described first network element, described polymerization discharge device sets up the connection between the PDCP layer of described second network element;
Or when described polymerization discharge device is integrated in described second network element, described polymerization discharge device sets up the connection between the PDCP layer of described first network element.
3. method according to claim 1 and 2, it is characterized in that, at described polymerization discharge device, the first downstream data bag in described downlink data packet is sent to the first network element, and before the second downstream data bag in described downlink data packet is sent to the second network element, also comprises:
Described polymerization discharge device obtains the downlink transmission rate of described first communication system and the downlink transmission rate of described second communication system;
Described polymerization discharge device determines described first downstream data bag and described second downstream data bag according to the downlink transmission rate of the downlink transmission rate of described first communication system and described second communication system from described downlink data packet.
4. method according to claim 3, it is characterized in that, at described polymerization discharge device from after core net downlink data receiving bag, first downstream data bag in described downlink data packet is sent to the first network element by described polymerization discharge device, and before the second downstream data bag in described downlink data packet is sent to the second network element, also comprise:
Each packet in described downlink data packet is numbered by described polymerization discharge device, recombinates according to described numbering to make described UE to described first downstream data bag and described second downstream data bag.
5. method according to claim 1, is characterized in that, also comprises:
Described polymerization discharge device receives the first upstream data bag of described first reported by network elements and the second upstream data bag of described second reported by network elements; Described first upstream data bag and described second upstream data bag are the packets that described UE transfers to described core net;
Described first upstream data bag and described second upstream data bag combine and obtain upstream data bag by described polymerization discharge device in order, and described upstream data bag is transferred to described core net.
6. method according to claim 5, is characterized in that, in described first upstream data bag, in each packet and described second upstream data bag, each packet all carries numbering;
Described first upstream data bag and described second upstream data bag combine and obtain upstream data handbag and draw together by described polymerization discharge device in order:
Described first upstream data bag and described second upstream data bag are obtained described upstream data bag according to number order combination according to the numbering of described first upstream data bag and the numbering of described second upstream data bag by described polymerization discharge device.
7. method according to claim 1, is characterized in that,
Described first communication system comprises: Long Term Evolution LTE system, or the follow-up evolution lte-a system of LTE;
Described first network element comprises: the base station eNodeB in described LTE system, or the eNodeB in described lte-a system;
Described second communication system comprises: Wideband Code Division Multiple Access (WCDMA) WCDMA system, or high speed downlink packet access technology HSPA system, or HSPA evolution system;
Described second network element comprises: the radio network controller (RNC) in described WCDMA system; Or the RNC in described HSPA system, or the RNC in described HSPA evolution system;
Or,
Described first communication system comprises: described WCDMA system, or described HSPA system, or described HSPA evolution system;
RNC in WCDMA system described in described first network element; Or the RNC in described HSPA system, or the RNC in described HSPA evolution system;
Described second communication system comprises: described LTE system, or described lte-a system;
Described second network element comprises: the eNodeB in described LTE system, or the eNodeB in described lte-a system.
8. a method for joint transmission, is characterized in that, comprising:
Network element receives the downlink data packet that polymerization discharge device issues;
Described network element processes described downlink data packet according to the PDCP PDCP layer protocol in affiliated communication system, and by described communication system by described downstream packet transmission to user equipment (UE).
9. method according to claim 8, is characterized in that, also comprises:
The upstream data bag that belonging to described network element receives, the wireless spread-spectrum technology RLC module of communication system sends;
Described network element processes described upstream data bag according to the PDCP layer protocol in affiliated communication system, and the described upstream data bag after process is sent to described polymerization discharge device.
10. be polymerized a discharge device, it is characterized in that, comprising:
Receiving element, for from core net downlink data receiving bag;
Transmitting element, for the first downstream data bag in described downlink data packet is sent to the first network element, to make, by the first communication system, described first downstream data bag is sent to UE, and the second downstream data bag in described downlink data packet is sent to the second network element, to make, by second communication system, described second downstream data bag is sent to described UE; Wherein, described first network element is arranged in described first communication system, for processing described first downstream data bag according to the PDCP layer protocol in described first communication system; Described second network element is arranged in described second communication system, for processing described second downstream data bag according to the PDCP layer protocol in described second communication system; Described second downstream data bag is the packet in described downlink data packet except described first downstream data bag.
11. equipment according to claim 10, is characterized in that, also comprise: processing unit;
Described polymerization discharge device independent of described first network element, and independent of described second network element; Or described polymerization discharge device is integrated in described first network element; Or described polymerization discharge device is integrated in described second network element;
Described processing unit, at described polymerization discharge device independent of described first network element, and when independent of described second network element, set up the connection between connection between described first network element PDCP layer and the PDCP layer of described second network element respectively;
Or, when described polymerization discharge device is integrated in described first network element, set up the connection between the PDCP layer of described second network element;
Or, when described polymerization discharge device is integrated in described second network element, set up the connection between the PDCP layer of described first network element.
12. equipment according to claim 10 or 11, is characterized in that, also comprise: acquiring unit and determining unit;
Described acquiring unit, for the downlink transmission rate of the downlink transmission rate and described second communication system that obtain described first communication system;
Described determining unit, for determining described first downstream data bag and described second downstream data bag according to the downlink transmission rate of described first communication system and the downlink transmission rate of described second communication system from described downlink data packet.
13. equipment according to claim 12, is characterized in that,
Described processing unit, also for being numbered by each packet in described downlink data packet, recombinates to described first downstream data bag and described second downstream data bag according to described numbering to make described UE.
14. equipment according to claim 10, is characterized in that,
Described receiving element, also for the second upstream data bag of the first upstream data bag and described second reported by network elements that receive described first reported by network elements; Described first upstream data bag and described second upstream data bag are the packets that described UE transfers to described core net;
Described processing unit, also obtains upstream data bag for described first upstream data bag and described second upstream data bag being combined in order;
Described transmitting element, also for described upstream data bag is transferred to described core net.
15. equipment according to claim 14, is characterized in that, in described first upstream data bag, in each packet and described second upstream data bag, each packet all carries numbering;
Described processing unit, specifically for obtaining described upstream data bag by described first upstream data bag and described second upstream data bag according to number order combination according to the numbering of described first upstream data bag and the numbering of described second upstream data bag.
16. equipment according to claim 10, is characterized in that,
Described first communication system comprises: Long Term Evolution LTE system, or the follow-up evolution lte-a system of LTE;
Described first network element comprises: the base station eNodeB in described LTE system, or the eNodeB in described lte-a system;
Described second communication system comprises: Wideband Code Division Multiple Access (WCDMA) WCDMA system, or high speed downlink packet access technology HSPA system, or HSPA evolution system;
Described second network element comprises: the radio network controller (RNC) in described WCDMA system; Or the RNC in described HSPA system, or the RNC in described HSPA evolution system;
Or,
Described first communication system comprises: described WCDMA system, or described HSPA system, or described HSPA evolution system;
RNC in WCDMA system described in described first network element; Or the RNC in described HSPA system, or the RNC in described HSPA evolution system;
Described second communication system comprises: described LTE system, or described lte-a system;
Described second network element comprises: the eNodeB in described LTE system, or the eNodeB in described lte-a system.
17. 1 kinds of network elements, is characterized in that, comprising:
Receiving element, for receiving the downlink data packet that polymerization discharge device issues;
Processing unit, for processing described downlink data packet according to the PDCP layer protocol in affiliated communication system;
Transmitting element, for by described communication system by described downstream packet transmission to UE.
18. network elements according to claim 17, is characterized in that,
Described receiving element, also for receiving the upstream data bag of the wireless spread-spectrum technology RLC module transmission of affiliated communication system;
Described processing unit, also for processing described upstream data bag according to the PDCP layer protocol in affiliated communication system;
Described transmitting element, also for the described upstream data bag after process is sent to described polymerization discharge device.
19. 1 kinds of systems, is characterized in that, comprising: polymerization discharge device, the first network element and the second network element;
Described polymerization discharge device is the polymerization discharge device described in any one of claim 10-16;
Described first network element is the network element described in claim 17 or 18;
Described second network element is the network element described in claim 17 or 18.
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| US10601656B2 (en) | 2015-09-02 | 2020-03-24 | Huawei Technologies Co., Ltd. | Network element upgrade method and device |
| CN105610656A (en) * | 2016-03-11 | 2016-05-25 | 中国联合网络通信集团有限公司 | Method and system for sharing upload bandwidth resource |
| CN105610656B (en) * | 2016-03-11 | 2019-03-12 | 中国联合网络通信集团有限公司 | Uplink bandwidth resource sharing method and system |
| CN108848529A (en) * | 2018-06-22 | 2018-11-20 | 中国联合网络通信集团有限公司 | A kind of data transmission method and device |
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| CN114554544B (en) * | 2020-11-20 | 2023-08-15 | ***通信有限公司研究院 | Transmission method, notification method, transmission unit and network side equipment |
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