CN103763314A - Method and device for processing user layer data in practically deployed tumble detecting system - Google Patents
Method and device for processing user layer data in practically deployed tumble detecting system Download PDFInfo
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Abstract
The invention provides a method for processing user layer data in a practically deployed tumble detecting system. The method comprises the steps: detecting IP data flow; judging whether the network is stable or the obvious disorder packet missing phenomenon exists at the server side during packet receiving, if yes, using the UDP to transmit IP data flow, and if not, using the TCP to transmit the IP data flow; when using the TCP to transmit the IP data flow, judging whether the IP data flow is an ACK data packet of the TCP, if yes, marking the IP data flow as high priority and sending the IP data flow to a high priority channel for transmission after PDCP processing and RLC processing are conducted on the IP data flow, and if not, marking the IP data flow as low priority and sending the IP data flow to a low priority channel for transmission after PDCP processing and RLC processing are conducted on the IP data flow. The method and device for processing user layer data in the practically deployed tumble detecting system can monitor the movement state of each person in real time.
Description
Technical field
The present invention relates to a kind of processing method of client layer data, particularly processing method and the device of client layer data in a kind of fall detection system of actual deployment.
Background technology
Along with the acceleration of aging population, and the variation of young man's philosophy of life, it is more and more that family not living home becomes.According to statistics, old men more than 65 one full year of life of annual 1/3 can have the experience of accidental falls.On the one hand, along with the raising of integrated chip scale, cost decreases; On the other hand, wireless communication technology is more and more ripe.The development of these technology make intelligent medical popularize all the more common people other, such as long-range blood pressure, blood glucose measurement etc.Wireless fall detection technology based on intelligent sensor belongs to one of many intelligent medical application.
Due in actual deployment, a large amount of sensor devices is producing data incessantly, and be sent to terminal equipment, how to process these mass data, and determine whether the event of falling occurs, and is determining the application prospect of intelligent medical equipment (as Wearable Medical Devices) fast, immediately, accurately.
Along with the high speed development of the communication technology, particularly 3G technology and LTE(LongTermEvolution) development of technology, data, services will become the most important thing of mobile radio communication business.The user that these wireless communication technologys are Wearable Medical Devices provides the wireless connections from itself to Internet.Existing Internet network service is mainly used TCP/IP procotol, thereby carries out networking and transmit data, but actual test shows that ICP/IP protocol can not respond in time when mass data is concentrated outburst.Its reason is, because it confirms that packet is likely in the transmission of eating dishes without rice or wine to block other data, and causes transmit leg to think that server does not receive message, carries out message retransmission.Finally cause mass data bag to stop up and eat dishes without rice or wine, can not process in time the message that wireless senser is beamed back, thereby cause the actual data of falling not to be acquired in time to server, incur loss through delay best treatment opportunity.
Therefore, communication system for traditional Wearable Medical Devices, be necessary to provide the processing method of client layer data in a kind of fall detection system of actual deployment, the huge technical problem that cannot monitor in real time each personnel's motion state of data volume with the communication system that solves existing Wearable Medical Devices because producing.
Summary of the invention
Object of the present invention aims to provide the processing method of client layer data in a kind of fall detection system of actual deployment, realize the optimization process of the fall detection system of user oriented aspect, the method is used Transmission Control Protocol, carry out the mutual of packet, and use on this basis udp protocol, thereby send data to faster server, guarantee that real time data can arrive service equipment fast, to solve the communication system of existing Wearable Medical Devices because of the huge technical problem that cannot monitor in real time each personnel's motion state of data volume of generation.
On the one hand, the invention provides the processing method of client layer data in a kind of fall detection system of actual deployment, comprising: detect IP traffic; Judge whether network is stablized or server end packet receiving has or not obvious out of order packet loss phenomenon, if so, use udp protocol transmission of IP data stream, if not, use Transmission Control Protocol transmission of IP data stream; When using Transmission Control Protocol transmission of IP data stream, judge whether IP traffic is the ack msg bag of Transmission Control Protocol, if, IP traffic is labeled as to high priority and sends to high-priority channel after PDCP processing and RLC processing and transmit, if not, IP traffic is labeled as low priority and through PDCP process and RLC processing after send to low-priority channel and transmit; Wherein, described RLC processes and can comprise: the different high-rise PDU grouping of length is carried out to segmentation and be reassembled as RLC load cell (LU); When the content of a RLC SDU can not be filled up a complete RLC PDU, the first paragraph of next RLC SDU is also placed in this LU, be linked togather with the final stage level of previous RLC SDU; When the content of RLC SDU can not be filled up a complete RLC PDU and cannot be carried out cascade, remaining space is filled up with filling bit; When RLC PDU is reassembled as RLC SDU, by checking that the serial number of RLC PDU checks RLC SDU state; Detect the wrong of rlc protocol and recover.
On the other hand, the invention provides the processing unit of client layer data in a kind of fall detection system of actual deployment, comprising: detection module, for detection of IP traffic, judge module, for judging whether network is stablized or server end packet receiving has or not obvious out of order packet loss phenomenon, and when using Transmission Control Protocol transmission of IP data stream, judges whether IP traffic is the ack msg bag of Transmission Control Protocol, processing module, for when network stabilization and server end packet receiving are during without obvious out of order packet loss phenomenon, use udp protocol transmission of IP data stream, when unstable networks or server end packet receiving have obvious out of order packet loss phenomenon, use Transmission Control Protocol transmission of IP data stream, and when IP traffic is the ack msg bag for Transmission Control Protocol, IP traffic is labeled as to high priority and sends to high-priority channel after packet data convergence (PDCP) processing and wireless chain control layer (RLC) processing and transmit, when IP traffic is not the ack msg bag for Transmission Control Protocol, IP traffic is labeled as to low priority and sends to low-priority channel after PDCP processing and RLC processing and transmit, wherein, described processing module further comprises: RLC processing unit, for being carried out to segmentation, the different high-rise PDU grouping of length is reassembled as RLC load cell LU, when the content of a RLC SDU can not be filled up a complete RLC PDU, the first paragraph of next RLC SDU is also placed in this LU, be linked togather with the final stage level of previous RLC SDU, when the content of RLC SDU can not be filled up a complete RLC PDU and cannot be carried out cascade, remaining space is filled up with filling bit, when RLC PDU is reassembled as RLC SDU, by checking that the serial number of RLC PDU checks RLC SDU state, detect the wrong of rlc protocol and recover.
The processing method of client layer data and device in the fall detection system of a kind of actual deployment provided by the invention, can realize the optimization process of the fall detection system of user oriented aspect, the method is used Transmission Control Protocol, carry out the mutual of packet, and use on this basis udp protocol, thereby send data to faster server, guarantee that real time data can arrive service equipment fast, to solve the communication system of existing Wearable Medical Devices because of the huge technical problem that cannot monitor in real time each personnel's motion state of data volume of generation.Further, the present invention is divided and is determined priority by the packet to Transmission Control Protocol, reaches and stablizes bandwidth of air-interface effect, and then guarantee that data can be stablized, the instant server that is sent to.
The aspect that the present invention is additional and advantage in the following description part provide, and these will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Fig. 1 shows the structural representation that the protocol architecture of user side and server in air protocol according to an embodiment of the present invention distributes;
Fig. 2 shows the schematic flow sheet of the processing method of client layer data in the fall detection system of actual deployment according to an embodiment of the present invention;
Fig. 3 shows the structural representation of the processing unit of client layer data in the fall detection system of actual deployment according to an embodiment of the present invention.
Embodiment
Describe embodiments of the present invention below in detail, the example of described execution mode is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the execution mode being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
Those skilled in the art of the present technique are understandable that, unless specially statement, singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording of using in specification of the present invention " comprises " and refers to and have described feature, integer, step, operation, element and/or assembly, but do not get rid of, do not exist or adds one or more other features, integer, step, operation, element, assembly and/or their group.Should be appreciated that, when we claim element to be " connected " or " coupling " when another element, it can be directly connected or coupled to other elements, or also can have intermediary element.In addition, " connection " used herein or " coupling " can comprise wireless connections or couple.Wording "and/or" used herein comprises arbitrary unit of listing item and all combinations that one or more is associated.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have with the present invention under the identical meaning of the general understanding of those of ordinary skill in field.Should also be understood that such as those terms that define in general dictionary and should be understood to have the consistent meaning of meaning in the context with prior art, unless and definition as here, can not explain by idealized or too formal implication.
The processing method of client layer data in the fall detection system of an actual deployment of Patent design of the present invention, it has mainly used udp protocol and ICP/IP protocol, and processes emphatically the data of PDCP protocol layer and rlc protocol layer.
This area common technology term the present invention relates to, as shown in the table.
| Technical term | English | Chinese |
| TCP/IP | Transmission Control Protocol/Internet Protocol | Transmission control protocol/Internet Interconnection agreement |
| IP traffic | Internet Protocol Dataflow | The data of interconnection agreement Network Based |
| UDP | User Datagram Protocol | User Datagram Protocol |
| TCP | Transmission Control Protocol | Transmission control protocol |
| PDCP | Packet Data Convergence Protocol | PDCP |
| RLC | Radio Link Control | Wireless chain control layer agreement |
| PDU | Power Distribution Unit | Power distribution unit |
| LU | Load Unit | Load cell |
| SDU | Service Data Unit | Service data unit |
| RRC | Radio Resource Control | Radio resource control |
UDP is a kind of towards connectionless transport layer protocol in OSI Reference Model, and it is mainly used in not requiring that, in the transmission of order of packets arrival, the inspection of transmitted in packets order is completed by application layer with sequence.It is different from towards connecting-type agreement, thereby has the advantages such as resource consumption is little, processing speed is fast, so audio frequency, video and general data are used UDP more when transmitting conventionally.Even because they lose packet once in a while one or two, can not have much impact to reception result yet.Because UDP may exist the phenomenon of packet loss, it is as the ground floor of this processing method.
TCP/IP is mainly divided into two parts: tcp data information and IP packet.Tcp data information can be expressed as: TCP head+real data (TCP head comprises: source and target host side slogan, serial number, confirmation number, check word etc.).IP packet can be expressed as: IP head+tcp data information (IP head comprises: source and target host IP address, type, life cycle etc.).Transmission Control Protocol for control whether data segment need to retransmit according to being to set up retransmission timer.When sending a data segment, start a retransmission timer, if receive that before timer expiry confirmation just closes this timer, if do not receive confirmation before timer expiry, retransmit this data segment.Exactly because also this characteristic is used separately Transmission Control Protocol likely to stop up and eat dishes without rice or wine in wireless network, cause the data can not normal propagation.
PDCP is a wireless transmission protocol stack in UMTS, and main being responsible for also safeguards by the compression of IP head and decompress(ion), transmitting user data the sequence number that radio bearer is set for harmless any wireless network services subsystem (SRNS).PDCP protocol layer belongs to the second layer of Radio interface protocols stack, Internet Protocol (IP) bag on (RRC) message of the RRM in processing controls plane and user plane.On user plane, PDCP sublayer obtains after the IP packet from upper strata, can IP packet be carried out head compression and be encrypted, and is then delivered to RLC sublayer.Hai Xiang upper strata, PDCP sublayer provides submits to and repeated packets measuring ability according to the order of sequence.
Fig. 1 shows the structural representation that the protocol architecture of user side and server in air protocol according to an embodiment of the present invention distributes.As shown in Figure 1, evolution land radio access web Node B (E-URTANNodeB, eNB) and subscriber equipment (UserEquipment, UE) in protocol stack, from high level to lower layers packet, contain: PDCP protocol layer, wireless link are controlled (RadioLinkControl, RLC) layer, MAC (MediumAccessControl) layer, physical layer (Physicallayer, PHY).When transmitting terminal needs transmit traffic data to arrive receiving terminal, transmitting terminal is processed the business datum receiving through PDCP protocol layer, rlc layer, the MAC layer of eNB, finally arrive the PHY layer of transmitting terminal, transmitting terminal sends to business on the PHY layer of receiving terminal by the physical path of PHY layer, the processing of the MAC layer of process receiving terminal, rlc layer, PDCP protocol layer, delivers to the high level of receiving terminal.
Fig. 2 shows the schematic flow sheet of the processing method of client layer data in the fall detection system of actual deployment according to an embodiment of the present invention.As shown in Figure 2, the invention provides the processing method of client layer data in a kind of fall detection system of actual deployment, comprising: detect IP traffic; Judge whether network is stablized or server end packet receiving has or not obvious out of order packet loss phenomenon, if network stabilization and server end packet receiving are without obvious out of order packet loss phenomenon, use udp protocol transmission of IP data stream, if unstable networks or server end packet receiving have obvious out of order packet loss phenomenon, use Transmission Control Protocol transmission of IP data stream; When using Transmission Control Protocol transmission of IP data stream, judge whether IP traffic is the ack msg bag of Transmission Control Protocol, if, IP traffic is labeled as to high priority and sends to high-priority channel after packet data convergence (PDCP) processing and wireless chain control layer (RLC) processing and transmit, if not, IP traffic is labeled as low priority and through PDCP process and RLC processing after send to low-priority channel and transmit.
Further, described RLC processes and can comprise: the different high-rise PDU grouping of length is carried out to segmentation and be reassembled as RLC load cell (LU); When the content of a RLC SDU can not be filled up a complete RLC PDU, the first paragraph of next RLC SDU is also placed in this LU, be linked togather with the final stage level of previous RLC SDU; When the content of RLC SDU can not be filled up a complete RLC PDU and cannot be carried out cascade, remaining space is filled up with filling bit; When RLC PDU is reassembled as RLC SDU, by checking that the serial number of RLC PDU checks RLC SDU state; Detect the wrong of rlc protocol and recover.
Further, described PDCP processes and further comprises: obtain the IP packet from upper strata; IP packet is carried out head compression and encrypted; IP packet by compression and after encrypting is sent to RLC sublayer; Provide and submit to according to the order of sequence and repeated packets detection service.
Further, described in, provide according to the order of sequence and to submit to and repeated packets detects to serve and further comprises: for upper strata RRC provides signalling service, and realize encryption and the consistency protection of RRC signaling, and realize in the reverse direction deciphering and the consistency check of RRC signaling.
For example, contribute to realize the system that the transfer of data relevant to switching managed in wireless communication system, (for example can comprise Node B, Node B (eNB) of base station, access point (AP), evolution etc.), the latter with can communicate with one or more user equipment units (UE is also called access terminal (AT), mobile terminal etc. in this application) 130.Give one example, Node B can be at one or more down link (DL, also referred to as forward link (FL)) upper communicate with UE, UE can go up and Node B communicates in one or more up links (UL, also referred to as reverse link (RL)).Give one example, Node B can for example, for example, be associated with cordless communication network (, the UMTS of evolution (universal mobile telecommunications system) land radio access web (E-UTRAN) or its part (, community, sector etc.)) again.In addition, Node B can with one or more other network entities (for example, system controller (not shown) etc.) collaborative work so that the communication between coordinator node B and UE.
Can the transmission of the respective packets in executive system in the scene of one or more communication layers of system protocol stack.For example, packet data convergence protocol (PDCP) layer, wireless link are controlled (RLC) layer, medium access control (MAC) layer and layer 1 (L1) and can be realized for the complexity with separately the various aspects of radio communication.Like this, for example, PDCP protocol layer can be for executing data compression and sequence and/or other high layer function, rlc layer can be for managing transmission and/or the re-transmission of various data, MAC layer can manage for corresponding relevant device is linked into the communication resource relevant to network, and L1 can be for the management physics air interface relevant to the given network equipment on lower level.But, should be understood that, be above that the mode with particular example provides, random layer can be carried out suitable function arbitrarily.In addition, should be understood that, system can be used the group communication layer being applicable to arbitrarily with any suitable order.
Layer and various PDU forms can be carried out associated, to contribute to the communication of combining information to manage and/or process the information on one or more layer.Therefore, corresponding PDCPPDU can be relevant to PDCP protocol layer, and PDCPPDU can be included in the RLCPDU relevant to rlc layer.Should be understood that, can PDCPPDU be mapped in RLCPDU in any suitable mode.Therefore, mapping one to one, many-one shine upon, one-to-many shines upon and/or other suitably shines upon and may be used to PDCPPDU to be encapsulated in corresponding RLCPDU arbitrarily.Should be understood that, select in addition or as another kind of, MAC layer, L1 and/or any other layer relevant to wireless communication system can be used PDU form, so as in given equivalent layer process information.
Can by corresponding data radio bearer (DRB), carry out the combination of coupling layer, for example, PDCP protocol layer and rlc layer.Can provide with PDCP protocol layer and rlc layer between the corresponding corresponding DRB of corresponding pipeline.For example, corresponding DRB can be for the data corresponding with one or more PDCPPDU are arranged, to transmit in wireless communication system after a while.In addition, DRB can be for preserving PDCP status message, and can generate and/or use as below described in further detail PDCP status message.For example, can distribute priority value to DRB, so that at least in part according to DRB priority separately, launch the information through arranging in DRB.Therefore, DRB can have limit priority, and DRB can have inferior limit priority, and DRB can have lowest priority.But, should be understood that, can between DRB, set up priority, and given respective priority can be applied to the DRB of any right quantity in any suitable manner.
System can be adaptive, to optimize the communication performance of given UE.Therefore, for example, if there is following situation: the wireless conditions that produces decline between Node B and UE, UE shifts out the overlay area of Node B, the service that UE needs is that Node B does not have ability or capacity to provide, or other reason, can carry out the service for UE to transfer to from source node B the switching of target node b so.
According to handoff procedure above, the UE in system can be for first dividing into groups the corresponding PDCP status message on corresponding DRB to launch handoff completion message after as following.Give one example, can be at the upper transmitting of Signaling Radio Bearer (SRB) PDCP status message, it can be used to indicate the DLPDCPPDU of loss and/or the sequence number (SN) of indicating last DLPDCPPDU in the DLPDCPPDU receiving successively.Like this, lift a concrete example, if the sequence number that has that UE receives given DRB from Node B is 1,2,4,6 and 10 PDCPPDU, the PDCP status message of this DRB can indicate that to have lost sequence number be that PDCPPDU that 3,5,7,8 and 9 PDCPPDU and indication sequence number are 2 is last of the PDU that receives successively so.Therefore, Node B can discharge for storing PDU1,2,4,6 and 10 memory, and only for the PDU3,5,7,8 and 9 losing, retransmits.In similarly concrete example, if corresponding PDCPPDU is encapsulated in corresponding RLCPDU, UE can confirm (ACK) to the Node B transmitting RLC corresponding with the RLCPDU correctly having been received by UE so.Therefore, for example, if RLCPDU is configured to comprise, have five PDCPPDU that SN is 1-5, UE can be for submit the ACK for RLCPDU to Node B after successfully receiving RLCPDU so, thereby Node B can discharge suitable memory and stop the re-transmission of PDCPPDU1-5.
In conventional radio communication realizes, the scheduler algorithms that respective nodes B and/or UE are used is not known after switching and/or the status message (for example, PDCP status message, RLCACK) generating at other appropriate time.Should be understood that, the corresponding entity in wireless communication system is for transmitting data in respective logical channels, to meet division order of priority bit rate (PBR) and/or one or more similarly other condition of respective logical channels.
Therefore, should be understood that, when using a plurality of channels to transmit, in some cases, the transmitting of the status message that the prevention before meeting the following conditions of conventional dispatching algorithm is corresponding with second channel or subsequent channel, that is: PBR, all data of satisfied the first channel all shift out the first channel and/or substantially after meeting other condition.This has caused postponing the transmission of status message, thereby has stoped substantive benefit the from these status messages of the entity in system.For example, for example, if the transmitting entity in system does not receive to asking the data to losing and (retransmits relevant one or more reports, by PDCP status message, RLCACK etc.), so in some cases, transmitting entity can not selected to retransmit for quite a few data, and this can cause at obliterated data the loss of these data in the situation that also expectation retransmitting.Or if lack status report, the each several part that transmitting entity can tentation data does not all have received, and these parts are retransmitted.But, should be understood that, if successfully received at least a portion in the data that retransmit in original transmitted, will cause so the transfer of data of unwanted repetition on up link and/or down link.In addition, should be understood that, repeat by this way transmission can also cause transmitting entity for the low service efficiency of memory, this be because transmitting entity can not discharge with to repeat to transmit the memory that relevant data are relevant.
Any other suitable entity in Node B, UE and/or system can, for scheduling intelligently through the information of arrangement, to status message is divided to order of priority, and be launched these status messages before transmitting data.For example, the data-analyzing machine of Node B and/or the data-analyzing machine of UE can be for monitoring with the information relevant to Node B and/or the corresponding corresponding DRB of UE or logic channel.According to the information from data-analyzing machine and/or acquisition, divide order of priority module and (for example can understand status message, PDCP status message, RLCACK etc.) and to transmitter and/or transmission divide order of priority, so that at transmitting data or before meeting the PBR relevant at least a portion of logic channel, from these logic channel emission state message.Therefore,, as conventionally described, for receiving the entity of these status messages, can avoid the aerial download bandwidth that repeats transmission and avoid waste on up link and/or down link of data above.For example, dividing order of priority module can guarantee, after switching, PDCP status report is provided to sufficiently high priority, so that the request of PDCP status report for any logic channel on do not carry out transfer of data or re-transmission, until substantially launched whole PDCP status reports.Give one example, by following means, dividing order of priority module can operate for the DRB with limited PBR: before the PBR that meets arbitrarily relevant DRB, impel the PDCP status message on the corresponding DRB of transmission again.Or, before transmitting by the arbitrary data on corresponding DRB, impel the PDCP status message on the corresponding DRB of transmission, dividing order of priority module can for example, for come the DRB (, relevant to unlimited PBR) of work to operate according to strict priority.Separately give one example, divide order of priority module and contribute to the status message of for example realizing, on any other suitable logic channel (, Signaling Radio Bearer (SRB) etc.) to divide order of priority.
In addition, dividing order of priority module can be for for example, dividing order of priority to RLC status message (the RLCSTATUS message that, comprises one or more ACK and/or negative ACK (NACK)) except PDCP status message and/or that replace PDCP status message.Therefore, during the communication session between Node B and UE and/or any other appropriate time, can make data-analyzing machine or division order of priority module recognize and (for example have corresponding RLC status message and/or their types separately, no matter whether these message comprise nack message), to compare new data transmission and/or data re-transmission on other logic channel, be allocated to the priority that RLC status message is higher.Therefore, should be understood that, the entity that can be used in reception RLC status message is understood as far as possible Negative Acknowledgement during communication session, thereby guarantees that on given channel, the smooth and easy of data flows.In addition, should be understood that, by in this way RLC status message being divided to order of priority, can substantially avoid not needing re-transmission, the inadequate UL/DL of data (for example, original transmission but data that receiving entity is not confirmed due to Status Disable timer) to authorize and/or other factors.
The data-analyzing machine of Node B and divide order of priority module and/or the data-analyzing machine of UE and divide the status message division order of priority that order of priority module can be relevant for the limited subgroup to application.For example, can to real-time application (for example, network voice protocol (VoIP) application etc.) and/or At All Other Times responsive or other application do not divide order of priority.For example, after the communication session of setting up for given application, Node B and/or UE can judge whether this application is time-sensitive, and after obtaining affirmative determination result, can make to divide and lost efficacy for some or all orders of priority as described above of this application.
Fig. 3 shows the structural representation of the processing unit of client layer data in the fall detection system of actual deployment according to an embodiment of the present invention.As shown in Figure 3, the invention provides the processing unit of client layer data in a kind of fall detection system of actual deployment, comprising: detection module, for detection of IP traffic, judge module, for judging whether network is stablized or server end packet receiving has or not obvious out of order packet loss phenomenon, and when using Transmission Control Protocol transmission of IP data stream, judges whether IP traffic is the ack msg bag of Transmission Control Protocol, processing module, for when network stabilization and server end packet receiving are during without obvious out of order packet loss phenomenon, use udp protocol transmission of IP data stream, when unstable networks or server end packet receiving have obvious out of order packet loss phenomenon, use Transmission Control Protocol transmission of IP data stream, and when IP traffic is the ack msg bag for Transmission Control Protocol, IP traffic is labeled as to high priority and sends to high-priority channel after packet data convergence (PDCP) processing and wireless chain control layer (RLC) processing and transmit, when IP traffic is not the ack msg bag for Transmission Control Protocol, IP traffic is labeled as to low priority and sends to low-priority channel after PDCP processing and RLC processing and transmit.
Further, described processing module can comprise: PDCP processing unit, for obtaining the IP packet from upper strata, carries out head compression and encrypts IP packet, IP packet by compression and after encrypting is sent to RLC sublayer, provides and submits to according to the order of sequence and repeated packets detection service.
Further, described PDCP processing unit piece can also be for: for upper strata RRC provides signalling service, and realize encryption and the consistency protection of RRC signaling, and realize in the reverse direction deciphering and the consistency check of RRC signaling.
Further, described processing module can comprise: RLC processing unit, for being carried out to segmentation, the different high-rise PDU grouping of length is reassembled as RLC load cell (LU), when the content of a RLC SDU can not be filled up a complete RLC PDU, the first paragraph of next RLC SDU is also placed in this LU, be linked togather with the final stage level of previous RLC SDU, when the content of RLC SDU can not be filled up a complete RLC PDU and cannot be carried out cascade, remaining space is filled up with filling bit, when RLC PDU is reassembled as RLC SDU, by checking that the serial number of RLC PDU checks RLC SDU state, detect the wrong of rlc protocol and recover.
The processing method of client layer data and device in the fall detection system of a kind of actual deployment provided by the invention, can realize the optimization process of the fall detection system of user oriented aspect, the method is used Transmission Control Protocol, carry out the mutual of packet, and use on this basis udp protocol, thereby send data to faster server, guarantee that real time data can arrive service equipment fast, to solve the communication system of existing Wearable Medical Devices because of the huge technical problem that cannot monitor in real time each personnel's motion state of data volume of generation.Further, the present invention is divided and is determined priority by the packet to Transmission Control Protocol, reaches and stablizes bandwidth of air-interface effect, and then guarantee that data can be stablized, the instant server that is sent to.
Those skilled in the art of the present technique are understandable that, the present invention can relate to for carrying out the equipment of the one or more operation of operation described in the application.Described equipment can be required object specialized designs and manufacture, or also can comprise the known device in all-purpose computer, and described all-purpose computer has storage procedure Selection within it and activates or reconstruct.Such computer program (for example can be stored in equipment, computer), in computer-readable recording medium or be stored in the medium of any type that is suitable for store electrons instruction and is coupled to respectively bus, described computer-readable medium includes but not limited to dish (comprising floppy disk, hard disk, CD, CD-ROM and magneto optical disk), random asccess memory (RAM), read-only memory (ROM), electrically programmable ROM, the electric erasable ROM(EPROM of any type), electrically erasable ROM(EEPROM), flash memory, magnetic card or light card.Computer-readable recording medium comprises for any mechanism with for example, by the storage of the readable form of equipment (, computer) or transmission information.For example, computer-readable recording medium comprises random asccess memory (RAM), read-only memory (ROM), magnetic disk storage medium, optical storage medium, flash memory device, the signal (such as carrier wave, infrared signal, digital signal) propagated with electricity, light, sound or other form etc.
Those skilled in the art of the present technique are understandable that, can realize each frame in these structure charts and/or block diagram and/or flow graph and the combination of the frame in these structure charts and/or block diagram and/or flow graph with computer program instructions.The processor that these computer program instructions can be offered to all-purpose computer, special purpose computer or other programmable data processing methods generates machine, thereby the instruction of carrying out by the processor of computer or other programmable data processing methods has created for the frame of implementation structure figure and/or block diagram and/or flow graph or the method for a plurality of frame appointments.
Those skilled in the art of the present technique are understandable that, the step in the various operations of having discussed in the present invention, method, flow process, measure, scheme can by alternately, change, combination or delete.Further, have other steps in the various operations discussed in the present invention, method, flow process, measure, scheme also can by alternately, change, reset, decompose, combination or delete.Further, of the prior art have with the present invention in step in disclosed various operations, method, flow process, measure, scheme also can by alternately, change, reset, decompose, combination or delete.
The above is only part execution mode of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a processing method for client layer data in the fall detection system of actual deployment, is characterized in that, comprising:
Detect IP traffic;
Judge whether network is stablized or server end packet receiving has or not obvious out of order packet loss phenomenon,
If udp protocol transmission of IP data stream without obvious out of order packet loss phenomenon, is used in network stabilization and server end packet receiving,
If unstable networks or server end packet receiving have obvious out of order packet loss phenomenon, use Transmission Control Protocol transmission of IP data stream;
When using Transmission Control Protocol transmission of IP data stream, judge whether IP traffic is the ack msg bag of Transmission Control Protocol,
If so, IP traffic is labeled as to high priority and sends to high-priority channel after packet data convergence PDCP processing and wireless chain control layer RLC processing and transmit,
If not, IP traffic is labeled as low priority and through PDCP process and RLC processing after send to low-priority channel and transmit;
Wherein, described RLC processes and further comprises:
The different high-rise power distribution unit PDU grouping of length is carried out to segmentation and be reassembled as RLC load cell LU;
When the content of a RLC service data unit SDU can not be filled up a complete RLC PDU, the first paragraph of next RLC SDU is also placed in this LU, be linked togather with the final stage level of previous RLC SDU;
When the content of RLC SDU can not be filled up a complete RLC PDU and cannot be carried out cascade, remaining space is filled up with filling bit;
When RLC PDU is reassembled as RLC SDU, by checking that the serial number of RLC PDU checks RLC SDU state;
Detect the wrong of rlc protocol and recover.
2. the processing method of client layer data in the fall detection system of actual deployment as claimed in claim 1, is characterized in that, described PDCP processes and further comprises:
Obtain the IP packet from upper strata;
IP packet is carried out head compression and encrypted;
IP packet by compression and after encrypting is sent to RLC sublayer;
Provide and submit to according to the order of sequence and repeated packets detection service.
3. the processing method of client layer data in the fall detection system of actual deployment as claimed in claim 2, is characterized in that, described in provide according to the order of sequence and to submit to and repeated packets detects to serve and further comprises:
For upper strata, radio resource control RRC provides signalling service, and realizes encryption and the consistency protection of RRC signaling, and realizes in the reverse direction deciphering and the consistency check of RRC signaling.
4. a processing unit for client layer data in the fall detection system of actual deployment, is characterized in that, comprising:
Detection module, for detection of IP traffic;
Judge module, for judging whether network is stablized or server end packet receiving has or not obvious out of order packet loss phenomenon, and when using Transmission Control Protocol transmission of IP data stream, judges whether IP traffic is the ack msg bag of Transmission Control Protocol;
Processing module, for when network stabilization and server end packet receiving are during without obvious out of order packet loss phenomenon, use udp protocol transmission of IP data stream, when unstable networks or server end packet receiving have obvious out of order packet loss phenomenon, use Transmission Control Protocol transmission of IP data stream, and, when IP traffic is the ack msg bag for Transmission Control Protocol, IP traffic is labeled as to high priority and sends to high-priority channel after packet data convergence PDCP processing and wireless chain control layer RLC processing and transmit, when IP traffic is not the ack msg bag for Transmission Control Protocol, IP traffic is labeled as to low priority and sends to low-priority channel after PDCP processing and RLC processing and transmit,
Wherein, described processing module further comprises: RLC processing unit, for being carried out to segmentation, the different high-rise PDU grouping of length is reassembled as RLC load cell LU, when the content of a RLC SDU can not be filled up a complete RLC PDU, the first paragraph of next RLC SDU is also placed in this LU, be linked togather with the final stage level of previous RLC SDU, when the content of RLC SDU can not be filled up a complete RLC PDU and cannot be carried out cascade, remaining space is filled up with filling bit, when RLC PDU is reassembled as RLC SDU, by checking that the serial number of RLC PDU checks RLC SDU state, detect the wrong of rlc protocol and recover.
5. the processing unit of client layer data in the fall detection system of actual deployment as claimed in claim 4, is characterized in that, described processing module further comprises:
PDCP processing unit, for obtaining the IP packet from upper strata, carries out head compression and encrypts IP packet, and the IP packet by compression and after encrypting is sent to RLC sublayer, provides submission according to the order of sequence and repeated packets to detect service.
6. the processing unit of client layer data in the fall detection system of actual deployment as claimed in claim 5, is characterized in that, described PDCP processing unit piece is further used for:
For upper strata RRC provides signalling service, and realize encryption and the consistency protection of RRC signaling, and realize in the reverse direction deciphering and the consistency check of RRC signaling.
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