CN102469410B - A kind of data transmission method, equipment and system - Google Patents
A kind of data transmission method, equipment and system Download PDFInfo
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- CN102469410B CN102469410B CN201010533478.2A CN201010533478A CN102469410B CN 102469410 B CN102469410 B CN 102469410B CN 201010533478 A CN201010533478 A CN 201010533478A CN 102469410 B CN102469410 B CN 102469410B
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Abstract
The invention discloses a kind of data transmission method, equipment and system, wherein, the method comprises: using the trunk subscriber node of first kind user terminal as Equations of The Second Kind user terminal and network side; Equations of The Second Kind user terminal passes through first kind user terminal by data message forwarding to network side.The present invention can realize reducing costs, improving transmission rate, and the business that in solution prior art, data transmission rates demands is higher is difficult to the technological deficiency being protected or causing cost to raise.
Description
Technical field
The present invention relates to wireless communication technical field, particularly, relate to a kind of data transmission method, equipment and system.
Background technology
Along with the development of mobile communication business, user has more and more higher requirement to data service transmission rate.The user channel quality closer apart from base station is more satisfactory, by multi-antenna multiplexed technology (MIMO, multiple-input and multiple-output) or high order modulation coded system, can improve transmission rate, meet customer service demand.For the user that distance base station is distant, or the user be in the more environment of barrier, channel quality is undesirable, multi-antenna diversity or minizone cooperation technology can be utilized to improve user communication quality, or utilize relay station (Type1relay) to carry out expansion to cover, ensure the reliability of transfer of data.
Realizing in process of the present invention, although the mode that inventor finds to improve in prior art channel quality can meet the reliability of transfer of data, but all there are some problems: such as, for minizone cooperation technology, identical content is transmitted to same user in multiple base station, the wasting of resources is comparatively serious, and cost is higher.For relaying technique, mutual by relay station between user and base station, the cost disposing relay station is higher equally.In addition, the business that data transmission rates demands is higher is difficult to be protected or cause cost to raise.
Summary of the invention
The first object of the present invention proposes a kind of data transmission method, to realize reducing costs, improving transmission rate.
The second object of the present invention proposes a kind of terminal, to realize the transmission rate improving the undesirable user of channel quality.
The third object of the present invention proposes a kind of network side data transmission equipment, to realize the transmission rate improving the undesirable user of channel quality.
The fourth object of the present invention proposes a kind of data transmission system, to realize reducing costs, improving transmission rate.
For realizing above-mentioned first object, according to an aspect of the present invention, providing a kind of data transmission method, comprising: using the trunk subscriber node of first kind user terminal as Equations of The Second Kind user terminal and network side; Equations of The Second Kind user terminal passes through first kind user terminal by data message forwarding to network side.
Wherein, data message forwarding can be comprised to network side by first kind user terminal by Equations of The Second Kind user terminal: first kind user terminal and Equations of The Second Kind user terminal are by auxiliary communication link forwarding data; First kind user terminal is mutual by main communication link and network side, forwarding Equations of The Second Kind user terminal and the mutual data of network side.
Wherein, this main communication can comprise one or more in UMTS, CDMA, LTE; Auxiliary communication can comprise wireless LAN communication, wireless blue tooth communication, infrared communication one or more; Wireless LAN communication comprises 802.11xWLAN.
Said method can also comprise: the relay services information that first kind user terminal is broadcasted by auxiliary communication link; Equations of The Second Kind user terminal receives the information of broadcast, generates trunk subscriber nodal information; Trunk subscriber nodal information is sent network side by Equations of The Second Kind user terminal.
Wherein, the relay services information of above-mentioned broadcast can be beacon frame, comprising: relay services mark, first kind user terminal place cell ID, first kind user terminal Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, auxiliary mailing address; Beacon frame can comprise 802.11x beacon frame, the bluetooth expanded according to auxiliary communication mode eat dishes without rice or wine L2CAP frame, bluetooth eat dishes without rice or wine LMP frame one or more.
Said method can also comprise:
When signal quality RSRP or RSRQ of Equations of The Second Kind user terminal is lower than pre-determined threshold; Or main communication wireless link RLF failure or RLF exceed preset times; Or monitor the signal quality of auxiliary communication link or channel quality higher than main communication link, or during higher than a predetermined threshold value; Or when Equations of The Second Kind user terminal receives and allows to use the message of relay services, perform follow-up using the operation of first kind user terminal as the trunk subscriber node of Equations of The Second Kind user terminal and network side;
And when signal quality RSRP or RSRQ of Equations of The Second Kind user terminal is higher than pre-determined threshold; Or signal quality RSRP or RSRQ of first kind user terminal is lower than pre-determined threshold; Or Equations of The Second Kind user terminal receives the request of interruption/refusal relay services, or when meeting the trigger condition of stopping relaying of systemic presupposition, stop by trunk subscriber node for data forwarding.
For realizing above-mentioned second object, according to another aspect of the present invention, providing a kind of terminal, comprising: network measure module, for receiving the relay services information of broadcast; Reporting module, generates trunk subscriber nodal information, concurrent SCN Space Cable Network side for the information received according to network measure module; Relay forwarding module, for the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of trunk subscriber node issued according to network side, by with the mutual data retransmission of network side to trunk subscriber node; Parsing module is the data format that transmission link transmits for the information that will transmit or data encapsulation/deblocking.
Wherein, parsing module can comprise:
Auxiliary communication format sub module stored, for storing the data format with the auxiliary communication of trunk subscriber node, wherein, relay services information comprises: user terminal place cell ID, the user terminal Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of broadcast relay information on services, the auxiliary mailing address of relay services mark, broadcast relay information on services; Relay services information comprises eat dishes without rice or wine L2CAP frame, bluetooth of 802.11x beacon frame, the bluetooth expanded according to auxiliary communication mode and to eat dishes without rice or wine one or more of LMP frame;
Main communication format sub module stored, for storing the data format of the main communication with network side, comprises UMTS, CDMA, LTE wireless communication format one or more.
For realizing above-mentioned 3rd object, according to another aspect of the present invention, additionally providing another kind of user terminal, comprising: broadcast module, for broadcast relay information on services; Link deployment module, for receiving the trunk information of network side configuration; Relay forwarding module, for the trunk information according to configuration, forwards serviced user terminal and the mutual data of network side; Parsing module is the data format that transmission link transmits for the information that will transmit or data encapsulation/deblocking.
For realizing above-mentioned 4th object, according to another aspect of the present invention, providing a kind of network side data transmission equipment, comprising: select module, one or more as trunk subscriber node for selecting in the trunk subscriber nodal information that reports from end side; Configuration module, for sending the trunk information of configuration to trunk subscriber node; Complete information according to the configuration of trunk subscriber node and report the user terminal of trunk subscriber nodal information mutual, carrying out selection information configuration; Relay forwarding module, for the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI according to the trunk subscriber node selected, by the data retransmission mutual with reporting the user terminal of trunk subscriber nodal information to trunk subscriber node; Parsing module is the data format that transmission link transmits for the information that will transmit or data encapsulation/deblocking.
For realizing above-mentioned 5th object, according to another aspect of the present invention, provide a kind of data transmission system, comprising: above-mentioned second object first kind user terminal, and above-mentioned second object Equations of The Second Kind user terminal, and the network side data transmission equipment of above-mentioned 3rd object.
The data transmission method of various embodiments of the present invention, device and system, transfer of data is carried out as relaying owing to utilizing terminal, using the relaying of first kind user terminal good for channel quality as the Equations of The Second Kind user terminal of bad channel quality, thus forward the data of Equations of The Second Kind terminal and network side, throughput and the transmission rate of transfer of data can be improved, and avoid the wasting of resources of prior art, improve the level of resources utilization, reduce costs.
The present invention is not only applicable to one or more main communication systems of UMTS, CDMA, LTE; Also applicable first kind terminal and Equations of The Second Kind terminal carry out auxiliary communication, as comprised one or more technology such as wireless LAN communication, wireless blue tooth communication, infrared communication, the WLAN (wireless local area network) forwarding data of the maturations such as 802.11xWLAN can also be utilized, improve the transmission rate of the user terminal of bad channel quality, meet the Qos to the higher business of rate requirement.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is according to data transmission method embodiment one flow chart of the present invention;
Fig. 2 is according to data transmission method of the present invention and systematic difference scene embodiment schematic diagram;
Fig. 3 is the beacon frame format schematic diagram according to utilizing WLAN wave point forwarding data in data transmission method of the present invention and system;
Fig. 4 is the beacon frame format schematic diagram according to utilizing bluetooth wireless interface L2CAP forwarding data in data transmission method of the present invention and system;
Fig. 5 is the beacon frame format schematic diagram according to utilizing bluetooth wireless interface LMP forwarding data in data transmission method of the present invention and system
Fig. 6 is the embodiment signaling process figure according to selecting trunk subscriber node in data transmission method of the present invention;
Fig. 7 is the embodiment signaling process figure according to the gravity treatment of trunk subscriber node or cancellation in data transmission method of the present invention;
Fig. 8 is according to the example structure schematic diagram of user terminal of the present invention as trunk subscriber node;
Fig. 9 is according to the example structure schematic diagram of user terminal of the present invention as serviced user node
Figure 10 is the example structure schematic diagram according to base station of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment of the method
Fig. 1 is that as shown in Figure 1, the present embodiment comprises according to data transmission method embodiment one flow chart of the present invention:
Step S102: using the trunk subscriber node of first kind user terminal as Equations of The Second Kind user terminal and network side;
Step S104: Equations of The Second Kind user terminal is by first kind user terminal forwarding data;
Concrete, first kind user terminal and Equations of The Second Kind user terminal can pass through in-plant auxiliary communication link forwarding data;
Step S106: first kind user terminal and network side are mutual, forwards Equations of The Second Kind user terminal and the mutual data of network side;
Particularly, step S106 can be: first kind user terminal, is namely chosen as the trunk subscriber node of Equations of The Second Kind user terminal, can be communicated with network side by main communication link.
A kind of transfer of data solution that the not high problem of the transmission rate of the present embodiment to the undesirable user of channel quality in wireless communication system proposes, the first kind terminal mainly utilizing signal quality good is made relaying and is transmitted, improve throughput and the level of resources utilization (main application scenarios: dtr signal, but need high speed data transfers).
The present embodiment also proposed can by auxiliary communication link between user, as 802.11x protocol of wireless local area network or Bluetooth communication, infrared etc. be example, realize mutual forwarding data, effectively can improve the transmission rate of the undesirable user of channel quality in wireless communication system.The main communication technology in the present embodiment can be UMTS, CDMA and LTE etc., and the auxiliary communication technology can be the communication technologys such as 8021.11x, bluetooth and ultra broadband, certainly, does not get rid of the technical scheme that follow-up auxiliary communication link also can realize with LTE.
Introduce application scenarios of the present invention below in detail, how effectively to select the problems such as trunk subscriber node.
Fig. 2 is according to data transmission method of the present invention and systematic difference scene embodiment schematic diagram, carries out transfer of data mainly through user terminal as relaying.
With reference to figure 1, in a wireless communication system, within base station range, be dispersed with the user that channel quality is different, and between user, there is the wave point of the auxiliary communication technology, such as 802.11x and bluetooth wireless interface, can by the data between the wave point forwarding user of the auxiliary communication technology and base station between user.The user that the undesirable user of channel quality can utilize the channel quality near this user more satisfactory, as relaying, realizes the relay transmission of data to base station.The user of relay services is needed to be defined as serviced node channel quality or signal quality RSRP or RSRQ poor (lower than a certain threshold value or threshold value) here, Equations of The Second Kind user terminal namely alleged by this paper, as user terminal 1, user terminal 4; The user of relay services can be provided to be defined as trunk subscriber node, the first kind user terminal namely alleged by this paper, as user terminal 2.Data between such first kind user terminal and network side base station can be forwarded by trunk subscriber node.Trunk subscriber node still adopts the main communication technology wave point transmission of standard with the data between base station, such as UMTS, CDMA and LTE etc. with the data between base station and ordinary node.
It should be noted that, the multiple trunk subscriber node of each first kind user terminal possible configuration, and namely the data of user through multi-hop relay, also can forward through multiple trunk subscriber node.A user terminal again can simultaneously as the trunk subscriber node of multiple Equations of The Second Kind user terminal.Main communicating wireless communications eats dishes without rice or wine to adopt different frequency ranges with auxiliary communication wireless interface part simultaneously, and the two does not just exist interference problem like this.
Below will for widely used 802.11x and the auxiliary communication technology of blue teeth wireless, in this present invention, auxiliary communication is described.Other the infrared subsidiary communications technology that waits can adopt similar thought and mode to carry out relay data forwarding.
A. the data forwarding method using 802.11x as the auxiliary communication technology of relaying
Fig. 3 is the beacon frame format schematic diagram according to utilizing WLAN wave point forwarding data in data transmission method of the present invention and system, based on the 802.11xWLAN forwarding data of expansion between first kind user terminal and Equations of The Second Kind user terminal, for follow-up serviced Equations of The Second Kind user terminal finds the node that can provide relay services, select the node that relay services is provided, cancel relay services, the problems such as handoff procedure process provide communication support.
1.802.11xWLAN the expansion of beacon frame:
The first kind user terminal of relay services can be provided in the periodic broadcast beacon frame in 802.11xWLAN side (beacon), and the Equations of The Second Kind user terminal selecting that conveniently channel quality is poor, can expand beacon frame.
802.11x beacon frame comprises a lot of information element (informationelements), its Format Reference Fig. 3.Wherein " VendorSpecificinformationelement ", the non-standard information of expansion can be deposited.Can the beacon frame of expansion can comprise: provide relay services mark, current serving Node number, the identification number of community, place, user's Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, the IP address (use when TCP/IPsocket tunnel or standard I P tunnel and just comprise this partial information) of user, user 802.11xMAC address.Above information as above can expand design according to concrete transmission demand selected part or whole field.
Use 802.11xWLAN forwarding data between UMTS, CDMA, LTE system user, effectively can improve the transmission rate of the poor user of channel quality, meet the QoS to the higher business of data rate requirement.As forwarded the data between the undesirable user of channel quality and base station by 802.11x protocol of wireless local area network between the user in LTE system, the undesirable user of channel quality passes data mutually by the mutually desirable user of at least one channel quality and base station, 802.11x protocol forward data are used between user, the trunk subscriber of base station and its direct interaction still uses LTE radio open mutual, thus ensure that the mutual reliability of the user that channel quality is undesirable and base station, and owing to using 802.11x protocol forward data between user, so can the data of the higher business of transmission rate request between the undesirable user of channel quality and base station.In addition, owing to using comparatively ripe 802.11x protocol forward data between user, user as trunk subscriber node, so both can not waste resource, also can not improve and realize cost.The data achieving transmission of high-rate business between the undesirable user of channel quality and base station of low cost.
Fig. 4 is the beacon frame format schematic diagram according to utilizing bluetooth wireless interface L2CAP forwarding data in data transmission method of the present invention and system.Fig. 4 is the beacon frame format schematic diagram according to utilizing bluetooth wireless interface LMP forwarding data in data transmission method of the present invention and system.
B. the data retransmission using bluetooth wireless interface as relaying subsidiary communications
The mode of operation of Bluetooth communication mainly contains BasicRate/EnhacedDataRate (BR/EDR) and LowEnergy (LE) pattern.LE pattern is a kind of power save mode, and message transmission rate is limited.Under BR/EDR pattern, the transmission rate of bluetooth is higher, should as the first-selected mode of operation in the larger situation of data transfer demands.Also will be specifically described as embodiment under BR/EDR pattern using bluetooth as the data retransmission of relaying subsidiary communications technology.
1. the expansion of blue teeth wireless frame:
The bluetooth users of relay services can be provided to obtain the communication node that can carry out Bluetooth wireless communication around it according to transmission inquiry " inqury " bag of the Bluetooth communication process cycle of standard, after constituting Bluetooth communication net, the frame of eating dishes without rice or wine of bluetooth can be utilized to carry out broadcast transmission extend information.Active state and parked state can be in from equipment (slavedevice) in blueteeth network.Main equipment (masterdevice), according to from the state residing for equipment, has two kinds of broadcast message send mode: ASB (activeslavebroadcast) and PSB (parkedslavebroadcast).ASB mode is being in the broadcast packet that under active state, main equipment sends.PSB mode is being in the broadcast packet that under parked state, main equipment sends.When using ASB mode, the bag of transmission is merely able to be L2CAP (LogicalLinkControlandAdaptationProtocol) grouped element; When using PSB mode, the bag of transmission can be L2CAP grouped element and LMP (LinkManagementProtocol) grouped element.According to the availability of the regulation in bluetooth standard and field, the present embodiment by consider respectively when the payload in broadcast frame that eats dishes without rice or wine be logic link layer control and self-adapted protocol L2CAP and link management protocol LMP, carry out the expansion of frame to realize relay function.Can the content frame of expansion comprises: provide relay services mark, current serving Node number, the identification number of community, place, user's Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, the auxiliary mailing addresses such as the IP address (use when TCP/IPsocket tunnel or standard I P tunnel and just comprise this partial information) of user and user's Bluetooth address.Above information as above can expand design according to concrete transmission demand selected part or whole field.
If what frame expansion adopted is L2CAP grouped element, according to bluetooth standard, different ChannelID has different implications and purposes, and wherein 0X0007-0X003E retains, therefore one of them value can be selected to be expansion frame for relaying to identify this frame of eating dishes without rice or wine, as shown in Figure 4.
If what frame expansion adopted is LMP grouped element, according to bluetooth standard, the PDU of different message has different opcode.In order to distinguish with the opcode of existing LMP message elements, but most of opcode uses, therefore the message of Extendedopcode to relaying can be adopted to identify, wherein escapeopcode can be set to 124-126, extendedopcode can be set to other value, such as 127, the combination of escapeopcode and extendedopcode therefore can be selected to be expansion frame for relaying to identify this frame of eating dishes without rice or wine, as shown in Figure 5.
Above-mentionedly just the several of relay services are carried out to the communication protocol adopted in auxiliary communication and form and exemplify; those of ordinary skill in the art should understand; for being suitable for different business demands; also may using infrared grade as auxiliary communication mode of the present invention; etc., it all should within technical solution of the present invention scope required for protection.
Introduce the trunk subscriber sensor selection problem/cancellation process after the expansion frame providing above-mentioned auxiliary communication below in detail:
The selection of trunk subscriber node and canceling method: need the user terminal of relay services to find and provide candidate relay user node to base station, base station in conjunction with the mobility of candidate relay user node and signal quality, and the channel quality of both candidate nodes in main communication system side finally select which or which as trunk subscriber node.Certainly, also can according to other way selection trunk subscriber nodes, as selected in conjunction with the annexation between trunk subscriber and serviced node and signal quality etc., mode is not unique.If but base station needs the topological structure annexation finding trunk subscriber node and serviced node, the signaling consumption of needs can be larger.
User's periodicity or triggering scanning discovery periphery can provide the relay services information (beacon frame as Fig. 3-Fig. 5) of the node broadcasts of relay services, comprise connectivity and signal quality etc., generate via node list (trunk subscriber nodal information), base station is uploaded to by RRC channel, reporting of this list information can be periodically report, or reporting based on event, or report based on the periodicity of event.Base station is according to the mobility of each candidate relay user node in list and signal quality, and the channel condition of main communication system side and speed, is defined as the node of being served by trunk subscriber, and arranges relaying relation by RRC signaling.Trunk subscriber node should try one's best chosen position is comparatively fixing or translational speed is very slow terminal as trunk subscriber node, the mobility of terminal can do rough judgement according to the situation of change of its average power signal, also can use existing terminal positioning function in existing communication system.
Except above selection mode, serviced user terminal and provide the user terminal of relay services also can send RRC signaling or other control signals to base station, requires to stop or cancelling relay services.Fig. 6 is the embodiment signaling process figure according to selecting/cancelling trunk subscriber node in data transmission method of the present invention, and as Fig. 6, the present embodiment comprises:
Step 1: when user 1 needs relay services, whether the node according to the beacon frame quality received and this beacon frame of broadcast is positioned at the factor generation trunk subscriber node candidate lists such as same base station with this node.User retains the extend information of beacon frame simultaneously.
Wherein, user judge to need or cancel the condition of relay services can be user 1 record signal quality RSRP or RSRQ lower than/higher than certain thresholding time, or there is main communication Radio Link Failure (RLF) or RLF exceedes certain number of times time; Or when finding signal quality RSRP or RSRQ of auxiliary communication and repeated link the signal quality of main communication link is lower than certain threshold value higher than certain threshold value, or the signal/channel quality of auxiliary communication link is higher than a predetermined threshold value; Or user 1 initiative uses, receive the message allowing to use relay services; Or trigger unlatching or the closedown of relay services when receiving interruption/stopping relay services.
Step 2: need the node of relay services to send RRC Relay service request to base station, as relay request order in Fig. 6, comprise satisfactory trunk subscriber candidate list (Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of trunk subscriber node), the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of user itself, the IP address (when using TCP/UDPsocket tunnel or standard I P tunnel) of user itself, with the 802.11MAC address etc. of user, specifically can see the expansion related description of Fig. 3-Fig. 5.
Step 3: base station selects one or more trunk subscriber node as the relaying of user 1, as selected user 2 in the present embodiment according to list.Base station sends the order of RRC link deployment to the trunk subscriber node selected, comprise the trunk information of basic configuration, comprise the Data Radio Bearer (dataradiobearer for transmitting serviced UE data, hereinafter referred to as DRB) etc. information, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of serviced node, the IP address (when using TCP/UDPsocket tunnel or standard I P tunnel) of serviced node and 802.11MAC address.
Step 4: trunk subscriber node sends RRC connection reprovision and completes, as the link deployment in Fig. 6 completes order to base station.
Step 5: base station sends RRC to user 1 and connects reprovision order, namely in Fig. 6, relay request confirms order, or allows the order using relay services, comprises selection information, comprise the information such as the DRB for transmitting data, and the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of base station selected trunk subscriber node.
Step 6: user 1 returns RRC connection reprovision and completes order to base station.
Follow-up so serviced node, trunk subscriber node and base station start data relay transmission.
It will be understood by a person skilled in the art that, Fig. 6 above sends out relay request order with user 1 to base station, and after base station side has configured trunk subscriber 2, send and confirm order, follow-uply carry out relay transmission, when specific implementation, due to user 1 and the poor signal quality of base station, control signals all for step 1-step 6 in Fig. 6 all can also be forwarded by trunk subscriber 2.
It is serviced node in this enforcement, namely user 1 is by via node candidate list report network side, one or more via node is selected by network side, but during embody rule, can also be that user 1 carries out selection and report network side according to the via node candidate list oneself generated, it can carry out the selection of via node according to following situation: according to the mobility of each via node, wireless signal or channel quality and/or the connectivity relation with user 1, select one or more trunk subscriber node.
Cancellation for relay services will adopt similar method, and just each orders the information comprised to be mandatum cassatorium or request.
During using bluetooth as auxiliary communication in trunking traffic, due to the master-slave mode that bluetooth is taked, in order to enable trunk subscriber node for multiple Equations of The Second Kind subscriber terminal service, the trunk subscriber node reported should be all generally the main equipment node in blueteeth network.In time there is multiple bluetooth master node and send broadcast, serviced terminal can receive multiple bluetooth master node information and by its correlation behavior reporting base station.Base station in conjunction with the mobility of candidate relay user node and signal quality finally select which or which as trunk subscriber node.User's periodicity or triggering scanning discovery periphery can provide the information of the node of relay services, these information are uploaded to base station by RRC channel, reporting of this information can be periodically report, or reporting based on event, or reports based on the periodicity of event.Trunk subscriber node should try one's best chosen position is comparatively fixing or translational speed is very slow terminal as trunk subscriber node, the mobility of terminal can do rough judgement according to the situation of change of its average power signal, also can use existing terminal positioning function in existing communication system.Concrete trunk subscriber sensor selection problem/canceling method can refer to Fig. 6.
Fig. 7 is the embodiment signaling process figure according to the gravity treatment of trunk subscriber node or cancellation in data transmission method of the present invention.
The gravity treatment of trunk subscriber node
Step 1: when serviced node, as user 1 finds that current hop user node beacon frame quality is lower than certain pre-determined threshold, or
Step 1 ': trunk subscriber node, when needing to interrupt the service to serviced node because of the demand of power consumption, own service speed, electricity deficiency etc. as user 2, trunk subscriber node sends breakout service request to base station;
Step 2 ': send break in service instruction to serviced node after base station receives Terminal Service request;
Step 3: user 1 can disconnect the link with current hop user node 2, rescans new trunk subscriber node.
Above-mentioned gravity treatment or cancel except the step 1 of the present embodiment and step 1 ' except, can also be following item: when signal quality RSRP or RSRQ of user 1 is higher than pre-determined threshold; Or signal quality RSRP or RSRQ of user 2 is lower than pre-determined threshold; Or user 1 receives the request of interruption/refusal relay services, or meet the trigger condition of other stopping relayings presetting of system, as user 1 and the auxiliary communication signal quality of user 2, and user 1 with the main communication signal quality difference of base station side higher than predetermined threshold value time, stop by user 2 forwarding data.
The present invention respectively executes the method for example compared with prior art, by this mechanism, has the following advantages:
1. can improve throughput and the transmission rate of transfer of data, and avoid the wasting of resources of prior art, improve the level of resources utilization, reduce costs.
2. use the mature technology such as 802.11xWLAN, bluetooth forwarding data, effectively can improve the transmission rate of the poor user of channel quality, meet the QoS to the higher business of data rate requirement.
3., by the expansion to auxiliary communication protocol, the switching problem of trunk subscriber sensor selection problem/cancellation/gravity treatment and serviced node can be solved
In order to realize the method in the present invention, need that corresponding improvement is carried out to the Equations of The Second Kind terminal of the first kind user terminal serving as trunk subscriber node, needs service and base station mutual with what realize in the inventive method.
Fig. 8 is that the present embodiment is mainly described from serviced node, as shown in Figure 8, comprising according to the example structure schematic diagram of user terminal of the present invention as serviced node:
Network measure module, for the relay services information broadcasted by auxiliary communications link reception;
Reporting module, generates trunk subscriber nodal information for the relay services information received according to network measure module, and sends network side by main communication link;
Relay forwarding module, for the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of trunk subscriber node issued according to network side, by with the mutual data retransmission of network side to trunk subscriber node;
Parsing module is the data format that main communication or auxiliary communication links send for the information that will transmit or data encapsulation/deblocking.
Preferably, parsing module can comprise:
Auxiliary communication format sub module stored, for storing the data format of auxiliary communication, wherein, relay services information comprises: user terminal place cell ID, the user terminal Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of broadcast relay information on services, the auxiliary mailing address of relay services mark, broadcast relay information on services; Relay services information comprises eat dishes without rice or wine L2CAP frame, bluetooth of 802.11x beacon frame, the bluetooth expanded according to auxiliary communication mode and to eat dishes without rice or wine one or more of LMP frame, specifically can see Fig. 3-Fig. 5 embodiment related description;
Main communication format sub module stored, for storing the data format of main communication, comprises UMTS, CDMA, LTE wireless communication format one or more.
Reporting module can comprise:
Obtain submodule, resolve relay services information by parsing module, obtain the combination in any of following information: the user terminal place cell ID of the connectivity of the user terminal of broadcast relay information on services, mobility, signal quality or channel quality, broadcast relay information on services;
Generate submodule, for generating trunk subscriber node listing according to relay services information.
Can also comprise: select module, for according to mobility, wireless signal or channel quality and/or connectivity relation, select the user terminal of one or more broadcast relay information on services as trunk subscriber node candidate.This module can not have yet, and by reporting module report network side, reinforms after being selected by network side.
The present embodiment can also comprise: trigger module, for working as network measure module monitors to signal quality RSRP or RSRQ lower than pre-determined threshold; Or main communication wireless link RLF failure or RLF exceed preset times; Or monitor the signal quality of auxiliary communication link or channel quality higher than main communication link, or during higher than a predetermined threshold value; Or when receiving the message or order that allow to use relay services, start reporting module; And
Stopping modular, for working as network measure module monitors to signal quality RSRP or RSRQ higher than pre-determined threshold; Or signal quality RSRP or RSRQ of trunk subscriber node is lower than pre-determined threshold; Or when receiving the request of interruption/refusal relay services, or when meeting the trigger condition of stopping relaying of systemic presupposition, close relay forwarding module and/or continue through reporting module and reselect another trunk subscriber node.
The concrete of concrete serviced node alternately can see embodiment of the method related description.
Fig. 9 is according to the example structure schematic diagram of user terminal of the present invention as trunk subscriber node, as shown in Figure 9, comprising:
Broadcast module, for passing through auxiliary communication link broadcast relay information on services;
Link deployment module, for the trunk information by main communications link reception network side configuration;
Relay forwarding module, for the trunk information according to configuration, forwards serviced user terminal and the mutual data of network side;
Parsing module, be the data format that main communication or auxiliary communication links send for the information that will transmit or data encapsulation/deblocking, its parsing module can be identical with Fig. 8 embodiment.
Can also trigger module be comprised in Fig. 9, for when signal quality RSRP or RSRQ is higher than pre-determined threshold or when receiving the information providing relay services, start broadcast module; And stopping modular, for when signal quality RSRP or RSRQ is lower than pre-determined threshold or when receiving the request of interruption/refusal relay services, interrupts/refuse Relay service request alternately with network side, close relay forwarding module.
For the terminal with relay function, it should be able to become trunk subscriber node or relay services node, and the protocol stack structure of terminal can be as shown in table 1.Relay services unit, as the relay forwarding module in Fig. 8 and Fig. 9, parsing module, link deployment module etc. all belongs to relay services unit, between main communication system agreement and auxiliary communication system protocol, relate to the switching of two communication system protocol stack data, the Access Layer of main communication system and auxiliary communication system and the information of Non-Access Stratum can be received, data can be sent in two kinds of communication systems.Its physical form can be between two communication system protocol, also can be positioned at module that is main or auxiliary communication system protocol processing unit inside.In time not adopting relay services function, relay services unit does not process the data from bottom and upper strata, adopts transparent transmission operation.Relay services unit can adopt aforesaid frame extended method to realize relay services function.Main communication system can be one or more systems such as UMTS, CDMA and LTE, and auxiliary communication system can be 802.11x, one or more systems such as bluetooth.The data of relaying can be forwarded by the Access Layer of two Terminal Types or Non-Access Stratum, are then finally issued the data transmitting control of network side by the Access Layer of first kind user terminal, as base station.
Table 1 possesses the first kind of relay function or the protocol stack structure of Equations of The Second Kind user terminal
| Main communication system Non-Access Stratum | Auxiliary communication system Non-Access Stratum |
| Main communication system Access Layer | Auxiliary communication system Access Layer |
Figure 10 is the example structure schematic diagram according to network side data transmission equipment of the present invention, as shown in Figure 10, comprising:
Select module, for selecting one in the trunk subscriber node candidate information that reports from end side as trunk subscriber node, particularly, can, according to the channel situation of the mobility of each trunk subscriber node, wireless signal or channel quality, main communication link and/or trunk subscriber node and the annexation of user terminal reporting trunk subscriber nodal information, select one or more as trunk subscriber node;
Configuration module, for sending the trunk information of configuration to trunk subscriber node by main communication link; Complete information according to the configuration of trunk subscriber node and report the user terminal of trunk subscriber nodal information mutual, carrying out selection information configuration;
Relay forwarding module, for the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI according to the trunk subscriber node selected, by the data retransmission mutual with reporting the user terminal of trunk subscriber nodal information to trunk subscriber node;
Parsing module is the data format that main communication or auxiliary communication links send for the information that will transmit or data encapsulation/deblocking.
For the network side data transmission equipment possessing relay function, need to support the selection of relaying user node and the analytical capabilities such as the encapsulation of repeat packets and deblocking.Trunk subscriber sensor selection problem and parsing see embodiment of the method related description, can repeat no more.
Technology described herein is implemented by various means.For example, these technology may be implemented in hardware, firmware, software or its combination.For hardware embodiments, for parsing module, link deployment, selection module etc. may be implemented in one or more application-specific integrated circuit (ASIC)s (ASIC), digital signal processor (DSP), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, electronic installation, other through design to perform in the electronic unit of function described herein or its combination.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. a data transmission method, is applied in wireless communication system, it is characterized in that, comprising:
Using the trunk subscriber node of first kind user terminal as Equations of The Second Kind user terminal and network side;
Described Equations of The Second Kind user terminal by described first kind user terminal by data message forwarding to described network side;
Described first kind user terminal is by auxiliary communication link broadcast relay information on services;
Described Equations of The Second Kind user terminal receives the relay services information of described broadcast, generates trunk subscriber nodal information;
Described trunk subscriber nodal information is sent network side by described Equations of The Second Kind user terminal, or by described first kind user terminal, described trunk subscriber nodal information is sent network side;
Data message forwarding is comprised to described network side by described first kind user terminal by described Equations of The Second Kind user terminal:
Described first kind user terminal and described Equations of The Second Kind user terminal are by auxiliary communication link forwarding data;
Described first kind user terminal by main communication link and network side alternately, forwards described Equations of The Second Kind user terminal and the mutual data of network side;
Described main communication comprise in UMTS, CDMA, LTE one or more; Described auxiliary communication comprise wireless LAN communication, wireless blue tooth communication, infrared communication one or more; Described wireless LAN communication comprises 802.11xWLAN;
Also comprise:
When serviced node finds that current hop user node beacon frame quality is lower than certain pre-determined threshold, or when trunk subscriber node needs because power consumption, the demand of own service speed, electricity are not enough to interrupt the service to serviced node, trunk subscriber node sends breakout service request to base station;
Break in service instruction is sent to serviced node after base station receives breakout service request;
Described trunk subscriber node and network side interrupt/refuse Relay service request alternately;
Described trunk subscriber node sends to described Equations of The Second Kind user terminal and interrupts/refusal Relay service request;
Described Equations of The Second Kind user terminal stops with the connection of described trunk subscriber node and/or by reselecting another first kind user terminal alternately as new trunk subscriber node with network side.
2. data transmission method according to claim 1, is characterized in that, described Equations of The Second Kind user terminal receives the relay services information of described broadcast, and the operation generating trunk subscriber nodal information comprises:
Described Equations of The Second Kind user terminal receives the relay services information of described first kind user terminal broadcast;
Relay services information according to described first kind user terminal generates trunk subscriber node listing.
3. data transmission method according to claim 1, it is characterized in that, the relay services information of described broadcast is beacon frame, comprising: relay services mark, described first kind user terminal place cell ID, described first kind user terminal Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, auxiliary mailing address;
Described beacon frame comprises 802.11x beacon frame according to described auxiliary communication mode expansion, bluetooth eats dishes without rice or wine L2CAP frame, bluetooth is eated dishes without rice or wine LMP frame one or more.
4. data transmission method according to claim 3, is characterized in that, described relay services information also comprises: current serving Node number.
5. data transmission method according to claim 2, is characterized in that, also comprises after receiving the information of described first kind user terminal broadcast:
The combination of following any information is also obtained: the connectivity of described first kind user terminal, mobility, signal quality or channel quality according to the relay services information of described broadcast.
6. the data transmission method according to any one of claim 1-5, is characterized in that, the operation of first kind user terminal as the trunk subscriber node of Equations of The Second Kind user terminal and network side is comprised:
Described Equations of The Second Kind user terminal or network side, according to the annexation of the mobility of first kind user terminal, wireless signal or channel quality and/or described first kind user terminal and described Equations of The Second Kind user terminal, select one or more first kind user terminal as the trunk subscriber node candidate of described Equations of The Second Kind user terminal.
7. data transmission method according to claim 6, is characterized in that, comprises further: described Equations of The Second Kind user terminal, according to the channel situation with the main communication link of network side, selects described trunk subscriber node candidate;
Or network side, according to the communication link channel situation of described Equations of The Second Kind user terminal and network side, selects described trunk subscriber node candidate.
8. the data transmission method according to any one of claim 1-5, is characterized in that, using first kind user terminal as Equations of The Second Kind user terminal and network side trunk subscriber node after also comprise:
Network side is mutual with the described first kind user terminal as trunk subscriber node, carries out trunk information configuration;
Configuration according to described trunk subscriber node completes information, and described network side and described Equations of The Second Kind user terminal alternately, carry out selection information configuration;
Described trunk information comprises the DRB information of described Equations of The Second Kind user terminal data of transmitting, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of described Equations of The Second Kind user terminal;
Described selection information comprises the DRB information of described first kind user terminal data, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of described first kind user terminal.
9. the data transmission method according to any one of claim 1-5, is characterized in that, also comprises:
When the main communications link signals quality RSRP or RSRQ of described Equations of The Second Kind user terminal is lower than pre-determined threshold; Or the main communication wireless link RLF failure of described Equations of The Second Kind user terminal or RLF exceed preset times; Or described Equations of The Second Kind user terminal monitors the signal quality of described auxiliary communication link or channel quality higher than main communication link, or during higher than a predetermined threshold value; Or when described Equations of The Second Kind user terminal receives and allows to use the message of relay services, perform follow-up using the operation of first kind user terminal as the trunk subscriber node of Equations of The Second Kind user terminal and network side;
And when the main communications link signals quality RSRP or RSRQ of described Equations of The Second Kind user terminal is higher than pre-determined threshold; Or signal quality RSRP or RSRQ of described first kind user terminal is lower than pre-determined threshold; Or described Equations of The Second Kind user terminal receives the request of interruption/refusal relay services, or when meeting the trigger condition of stopping relaying of systemic presupposition, stop by described trunk subscriber node for data forwarding.
10. a user terminal, is characterized in that, comprising:
Network measure module, for receiving the relay services information of broadcast;
Reporting module, generates trunk subscriber nodal information, concurrent SCN Space Cable Network side for the relay services information received according to described network measure module;
Relay forwarding module, for the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of trunk subscriber node issued according to network side, by with the mutual data retransmission of network side to described trunk subscriber node;
Parsing module, for the data format of the information that will transmit or data encapsulation/deblocking transmission link;
Described parsing module comprises:
Auxiliary communication format sub module stored, for storing the data format with the auxiliary communication of trunk subscriber node, wherein, relay services information comprises: relay services mark, the user terminal place cell ID of broadcasting described relay services information, the user terminal Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of broadcasting described relay services information, auxiliary mailing address; Described relay services information comprises 802.11x beacon frame according to described auxiliary communication mode expansion, bluetooth eats dishes without rice or wine L2CAP frame, bluetooth eats dishes without rice or wine LMP frame one or more;
Main communication format sub module stored, for storing the data format of the main communication with network side, comprises UMTS, CDMA, LTE wireless communication format one or more.
11. terminals according to claim 10, is characterized in that, described reporting module comprises:
Obtain submodule, resolve described relay services information by described parsing module, obtain the combination in any of following information: the user terminal place cell ID of broadcasting the connectivity of the user terminal of described relay services information, mobility, radio signal quality or channel quality, the described relay services information of broadcast;
Generate submodule, for generating trunk subscriber node listing according to described relay services information.
12. terminals according to claim 11, is characterized in that, also comprise:
Select module, for according to described mobility, wireless signal or channel quality and/or described connectivity relation, select user terminal that one or more broadcasts described relay services information as trunk subscriber node candidate.
13. terminals according to any one of claim 10-12, is characterized in that, also comprise:
Trigger module, for working as described network measure module monitors to main communications link signals quality RSRP or RSRQ lower than pre-determined threshold; Or main communication wireless link RLF failure or RLF exceed preset times; Or monitor the signal quality of described auxiliary communication link or channel quality higher than main communication link, or during higher than a predetermined threshold value; Or when receiving the message allowing to use relay services, start described reporting module;
Stopping modular, for working as described network measure module monitors to signal quality RSRP or RSRQ higher than pre-determined threshold; Or signal quality RSRP or RSRQ of described trunk subscriber node is lower than pre-determined threshold; Or receive the request of interruption/refusal relay services, or when meeting the trigger condition of stopping relaying of systemic presupposition, close described relay forwarding module and/or continue through described reporting module and reselect another trunk subscriber node.
14. 1 kinds of user terminals, is characterized in that, comprising:
Broadcast module, for broadcast relay information on services;
Link deployment module, for receiving the trunk information of network side configuration;
Relay forwarding module, for the trunk information according to described configuration, forwards serviced user terminal and the mutual data of network side;
Parsing module is the data format that transmission link transmits for the information that will transmit or data encapsulation/deblocking;
Described parsing module comprises:
Auxiliary communication format sub module stored, for storing the data format with the auxiliary communication of described serviced user terminal, wherein, relay services information comprises: relay services mark, the user terminal place cell ID of broadcasting described relay services information, the user terminal Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of broadcasting described relay services information, auxiliary mailing address; Described relay services information comprises 802.11x beacon frame according to described auxiliary communication mode expansion, bluetooth eats dishes without rice or wine L2CAP frame, bluetooth eats dishes without rice or wine LMP frame one or more;
Main communication format sub module stored, for storing the data format of the main communication with network side, comprises UMTS, CDMA, LTE wireless communication format one or more.
15. terminals according to claim 14, is characterized in that, also comprise:
Trigger module, for when signal quality RSRP or RSRQ is higher than pre-determined threshold or when receiving the information providing relay services, starts described broadcast module;
Stopping modular, for when signal quality RSRP or RSRQ is lower than pre-determined threshold or when receiving the request of interruption/refusal relay services, interrupts/refuses Relay service request alternately with network side, close described relay forwarding module.
16. 1 kinds of network side data transmission equipments, is characterized in that, comprising:
Select module, one or more as trunk subscriber node for selecting in the trunk subscriber nodal information that reports from end side;
Configuration module, for sending the trunk information of configuration to trunk subscriber node; Complete information according to the configuration of described trunk subscriber node and report the user terminal of trunk subscriber nodal information mutual, carrying out selection information configuration;
Relay forwarding module, for the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI according to the trunk subscriber node selected, by the data retransmission mutual with reporting the user terminal of trunk subscriber nodal information to described trunk subscriber node;
Parsing module is the data format that transmission link transmits for the information that will transmit or data encapsulation/deblocking;
Described parsing module comprises:
Auxiliary communication format sub module stored, for storing the data format of auxiliary communication, comprising: the user terminal place cell ID of relay services mark, broadcast relay information on services, the user terminal Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of broadcasting described relay services information, auxiliary mailing address; Described relay services information comprises 802.11x beacon frame according to described auxiliary communication mode expansion, bluetooth eats dishes without rice or wine L2CAP frame, bluetooth eats dishes without rice or wine LMP frame one or more;
Main communication format sub module stored, for storing the data format of main communication, comprises UMTS, CDMA, LTE wireless communication format one or more.
17. network side data transmission equipments according to claim 16, it is characterized in that, described selection module, according to the channel situation of the mobility of trunk subscriber node, wireless signal or channel quality, main communication link and/or trunk subscriber node and the annexation of user terminal reporting described trunk subscriber nodal information, is selected one or more as trunk subscriber node.
18. data transmission sets according to any one of claim 16-17, is characterized in that, also comprise:
Cancellation/stopping modular, for receiving and feeding back the request of interruption/refusal relay services, and stops by described trunk subscriber node for data forwarding.
19. 1 kinds of data transmission systems, it is characterized in that, comprise the Equations of The Second Kind user terminal described in any one of claim 10-13, the first kind user terminal described in any one of claim 14-15, and the network side data transmission equipment described in any one of claim 16-18, wherein:
Described network side data transmission equipment or Equations of The Second Kind user terminal selecting first kind user terminal are as the trunk subscriber node of Equations of The Second Kind user terminal and network side;
Described Equations of The Second Kind user terminal by with the mutual data retransmission of network side to described first kind user terminal;
Described first kind user terminal and network side are mutual, forward described Equations of The Second Kind user terminal and the mutual data of network side.
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| CN201010533478.2A CN102469410B (en) | 2010-11-02 | 2010-11-02 | A kind of data transmission method, equipment and system |
| PCT/CN2011/081673 WO2012059049A1 (en) | 2010-11-02 | 2011-11-02 | Method, device and system for data transmission |
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| CN1537400A (en) * | 2001-08-07 | 2004-10-13 | ��ʽ����Ntt����Ħ | Mobile terminal, control station communication method, communication program and control program |
| CN1901400A (en) * | 2005-07-04 | 2007-01-24 | 三星电子株式会社 | Cooperative relay transmission technique for wireless communication system |
| CN1845597A (en) * | 2006-04-30 | 2006-10-11 | 北京华纬讯电信技术有限公司 | Method for realizing audio/video information stream interconnection for video conference with private network terminal |
| CN101102278A (en) * | 2006-07-04 | 2008-01-09 | 株式会社日立制作所 | Building method, program and wireless terminal for self-organization network |
| CN101394612A (en) * | 2007-09-21 | 2009-03-25 | 中兴通讯股份有限公司 | Method for relay selection and subchannel allocation in OFDM system |
| WO2010077391A1 (en) * | 2008-12-30 | 2010-07-08 | Sony Ericsson Mobile Communications Ab | Method and apparatus for relaying calls |
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