CN101513114A - System and method for high speed local connectivity between local devices - Google Patents
System and method for high speed local connectivity between local devices Download PDFInfo
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- CN101513114A CN101513114A CNA2007800318722A CN200780031872A CN101513114A CN 101513114 A CN101513114 A CN 101513114A CN A2007800318722 A CNA2007800318722 A CN A2007800318722A CN 200780031872 A CN200780031872 A CN 200780031872A CN 101513114 A CN101513114 A CN 101513114A
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Abstract
A device and method is provided to facilitate direct high speed data transfer between at least two wireless devices in order to support high speed local connectivity while mitigating the need for multimedia servers. A short range high speed link is established between wireless devices using an uplink band of a licensed spectrum in the case of Frequency Division Duplex (FDD) systems and the same band in the case of Time Division duplex (TDD) systems, hence enhancing the spectrum efficiency.
Description
Priority
The application is to temporary patent application No.60/818 that submit to, that be entitled as " System and method for HighSpeed Local Connectivity Between Local Devices " on June 30th, 2006, and 193 require priority.
Technical field
Various formations relate to radio communication, particularly are used for the system and method for two direct high speed data transfer between the wireless device.
Background technology
For the mobile subscriber, wireless connections have made new movable living mode be full of facility.User's mobility and ever-increasing information are propagated the demand that is stimulating bigger mobile storage ability.For example, mobile phone is becoming the personal memory device of telephone number, graph image, audio frequency and/or video file and other type information.The consumer will be very fast can demand be used to back up institute's canned data and/or with the mode of miscellaneous equipment clearing house canned data.For example, the interconnected information that makes can (for example, HDTV), be shared between set-top box (STB), games system, PDA(Personal Digital Assistant) and the cell phone and between miscellaneous equipment in PC, personal digital video recorder, MP3 player, Digital Video, digital camera, HDTV (High-Definition Television).Yet current the existence hardly is used for from the mobile device backup information or is used for sharing the convenient of this information with miscellaneous equipment selecting.
Therefore, need a kind ofly to satisfy locally-attached requirement and do not increase the method for wireless device complexity.
Summary of the invention
A kind of method that is used for setting up at wireless network reciprocity channel on the originator wireless device that operates in is provided.The equity channel is used for directly communicating by letter with targeted wireless device.The equity channel obtains from wireless network manager.Subsequently, by reciprocity channel, data can directly be transferred to targeted wireless device.The equity channel can be used to make the wireless device of time division duplex (TDD) and Frequency Division Duplexing (FDD) (FDD) to communicate with one another.The equity channel can be a communication channel in time division duplex (TDD) network, and in Frequency Division Duplexing (FDD) (FDD) network, can be uplink channel, wherein, communication channel and uplink channel can use essentially identical frequency and distributed time slot, can carry out TDD and can carry out interoperability between the wireless device of FDD with convenient.The equity channel can be a uplink channel at Frequency Division Duplexing (FDD) (FDD) wireless device that is used for receiving and sending.Originator wireless device can be a cell phone, and targeted wireless device can comprise one in the following equipment: computer, cell phone, personal digital assistant, audio frequency apparatus, video equipment, camera, display device, printer or digital storage equipment.Request to direct reciprocity channel can the recognition objective wireless device.
In an example, obtain the tabulation of potential targeted wireless device, and from this tabulation the select target wireless device.
In another example, carry out the scanning of available channel, to discern one or more available channels.Be in the one or more channels of discerning of direct reciprocity channel request at least one.
Originator wireless device can use targeted wireless device to come Backup Data.Originator wireless device can receive come from targeted wireless device to receiving the affirmation of the data of being transmitted.Informing network manager equity channel can be released then.In a formation, one or more channels can be summarised in the reciprocity channel, to increase the bandwidth of reciprocity channel.The equity channel can be the local[remote that is used for carrying out between originator wireless device and the targeted wireless device junction service.
A kind of radio communication device also is provided, comprises: (a) memory device, (b) radio receiving-transmitting unit, and/or (c) be coupled to the processor of memory device and radio receiving-transmitting unit.In an example, processor can be used for: (1) request is used for direct reciprocity channel of communicating by letter with targeted wireless device, and (2) obtain reciprocity channel from wireless network manager, and/or (3) directly are transferred to targeted wireless device by reciprocity channel with data.Processor can also be used to discern one or more potential targeted wireless device, can the select target wireless device from potential targeted wireless device.The equity channel can be used to make time division duplex (TDD) and Frequency Division Duplexing (FDD) (FDD) wireless device to communicate with one another.For example, the equity channel can be a communication channel in time division duplex (TDD) network, in Frequency Division Duplexing (FDD) (FDD) network can be uplink channel, communication channel and uplink channel can use essentially identical frequency and distributed time slot, can carry out TDD and can carry out interoperability between the FDD wireless device with convenient.
Radio receiving-transmitting unit can also comprise the diversity reception chain, and this diversity reception chain is used for receiving on uplink channel frequency when operating in ad-hoc mode, otherwise receives on downlink channel frequency.Radio receiving-transmitting unit can be used at Frequency Division Duplexing (FDD) (FDD) network communication.Therefore, transceiver can comprise: (a) be tuned to the transmitter circuitry on uplink frequency, launched, (b) be tuned to the first diversity reception machine circuit that on down-link frequencies, receives, and/or (c) be adjustable on the uplink frequency or the second diversity reception machine circuit that on down-link frequencies, receives according to operational mode.
Therefore, provide a kind of Wireless Telecom Equipment, it comprises: the module that (a) is used to ask the reciprocity channel that directly communicates with targeted wireless device; (b) be used for obtaining the module of reciprocity channel from wireless network manager; (c) be used for data directly being transferred to the module of targeted wireless device by reciprocity channel; (d) be used for the module of on uplink channel frequency, launching; (e) be used for when operating in ad-hoc mode, on uplink channel frequency, receiving, otherwise the module that on downlink channel frequency, receives; (f) be used for receiving the module that has received the affirmation of the data of being transmitted from targeted wireless device; And/or (g) be used for informing network manager equity channel can d/d module.
A kind of treatment facility also is provided, and it comprises: treatment circuit is used for the reciprocity channel that (a) request and targeted wireless device directly communicate; (b) obtain reciprocity channel from wireless network manager; And/or (c) data directly are transferred to targeted wireless device by reciprocity channel.The equity channel can be the local[remote that is used for carrying out with targeted wireless device junction service, and wherein, this peer link is defined by frequency and time slot.
Machine readable media has one or more instructions that are used for setting up at wireless network reciprocity channel on the originator wireless device that operate in, and impels processor when processor executes instruction: (a) the reciprocity channel of request and targeted wireless device direct communication; (b) obtain reciprocity channel from wireless network manager; And/or data directly are transferred to targeted wireless device by reciprocity channel.In order to finish this task, can obtain the tabulation of potential targeted wireless device, and from this tabulation the select target wireless device.Another feature regulation scan available channels is to discern one or more available channels.Then, be in the one or more channels of discerning of direct reciprocity channel request at least one.
Also provide a kind of operating in to be used for the method that communicates by reciprocity channel at wireless network on the targeted wireless device.Receive the invitation of setting up reciprocity channel with originator wireless device from network manager.Send the answer of accepting this invitation to network manager.Then, can directly receive data by reciprocity channel from originator device.Local reception to data can be stored in this locality, and can send the affirmation receive data to originator wireless device.When targeted wireless device was Frequency Division Duplexing (FDD) equipment, receiver can be used for receiving on uplink frequency.The equity channel can be used to make time division duplex (TDD) and Frequency Division Duplexing (FDD) (FDD) wireless device can utilize that distributed time slot communicates with one another on the characteristic frequency.
A kind of treatment facility also is provided, and it comprises treatment circuit, is used for: (a) receive the invitation of setting up reciprocity channel with originator wireless device from network manager; (b) send the answer of accepting this invitation to network manager; (c) on reciprocity channel, intercept; And/or (d) directly receive data from originator wireless device by reciprocity channel.The equity channel can be the local[remote that is used for carrying out with targeted wireless device junction service, and this peer link can be defined by frequency and time slot.
Therefore, provide a kind of Wireless Telecom Equipment, comprising: (a) be used for setting up the module of the invitation of reciprocity channel with originator wireless device from the network manager reception; (b) be used for sending the module of the answer accept the invitation to network manager; (c) be used for directly receiving the module of data from originator device by reciprocity channel; (d) be used for the data that receive are carried out local module of storing; (e) be used for sending the module of the affirmation received data to originator wireless device; And/or (f) be used for when Wireless Telecom Equipment is Frequency Division Duplexing (FDD) equipment, the frequency that Wireless Telecom Equipment is received is adjusted to the module of uplink channel frequency from downlink channel frequency.
A kind of machine readable media also is provided, it has one or more operating in and is used for the instruction that communicates by reciprocity channel at wireless network on the targeted wireless device, impels processor when processor executes instruction: (a) receive the invitation of setting up reciprocity channel with originator wireless device from network manager; (b) send the answer of accepting this invitation to network manager; (c) on reciprocity channel, intercept; (d) directly receive data by reciprocity channel from originator wireless device; (e) data that receive are carried out this locality storage; (f) send the affirmation that has received data to originator wireless device; And/or (g) when radio communication device is Frequency Division Duplexing (FDD) equipment, the receiver of radio receiving-transmitting unit adjusted on uplink channel frequency receives.
A kind of radio set that receives on uplink frequency that is adjustable to also is provided, and it comprises: (a) be tuned to the transmitter circuitry on uplink frequency, launched; (b) be tuned to the first diversity reception machine circuit that on down-link frequencies, receives; And/or (c) be adjustable to according to operational mode or on the uplink frequency or the second diversity reception machine circuit that on down-link frequencies, receives.In addition, first antenna can be coupled to transmitter circuitry to transmit from transmitter circuitry, and first antenna can also be coupled to the first diversity reception machine circuit, so that be the first diversity reception machine circuit received signal.Second antenna can be coupled to the second diversity reception machine circuit, so that be the second diversity reception machine circuit received signal.
A kind of method of operation that is used for setting up reciprocity channel on the wireless network manager device between wireless device that operates in also is provided.Reception is to the request of the peer link between originator wireless device and the targeted wireless device.Be the peer link allocated channel, and notify the channel that is distributed to originating terminal and targeted wireless device.Can notify the request of originator wireless device to targeted wireless device to peer link.Then, determine whether targeted wireless device is ready to accept the peer link with originator wireless device.Can whether accept peer link to originator wireless device notification target wireless device.Peer link can be defined by frequency and time slot.For example, frequency can be a communication channel in time division duplex (TDD) network, and can be uplink channel in Frequency Division Duplexing (FDD) (FDD) network, can carry out TDD and can carry out interoperability between the FDD wireless device with convenient.Near the tabulation of available and wireless device that can the reach originator device can be obtained, and the tabulation of this wireless device can be sent to originator wireless device, can the select target wireless device from this tabulation.Wireless device in the tabulation can be discerned by using from radio frequency (RF) signature of wireless device, according to the geographical position they are divided into groups.
Another realization provides a kind of network manager device, and it comprises: (a) with network in the radio communication circuit that communicates of wireless device; (b) be coupled to the treatment circuit of radio communication circuit.This treatment circuit can be used for: (1) receives the request to the peer link between originator wireless device and the targeted wireless device; (2) be the peer link allocated channel; (3) notify the channel that is distributed to originating terminal and targeted wireless device; (4) to of the request of targeted wireless device notice originator wireless device to peer link; (5) determine whether targeted wireless device is ready to accept the peer link with originator wireless device; (6) accepted peer link to originator wireless device notification target wireless device; (7) receive and to be used to indicate the peer link can d/d message; And/or (8) discharge channel for peer link.
Description of drawings
Fig. 1 illustrates the block diagram that can realize the direct locally-attached formation example between two wireless devices in the cordless communication network of being managed.
Fig. 2 illustrates the uplink channel of Frequency Division Duplexing (FDD) (FDD) network and the example of downlink channel.
Fig. 3 illustrates the example of interior uplink channel of time division duplex (TDD) network and downlink channel.
Fig. 4 illustrates an example of two peer link between the wireless device.
Fig. 5 illustrates the example of the request-response method that is used to realize two peer-to-peer communication links between the wireless device.
Fig. 6 illustrates the example of the peer list method that is used to realize two peer-to-peer communication links between the wireless device.
Fig. 7 illustrates the block diagram that can be used for the mobile device example that communicates by peer link.
Fig. 8 is the block diagram that the functional part example that is used for the originator wireless device that communicates by reciprocity channel is shown.
Fig. 9 illustrates and operates in the example that is used to set up and send by reciprocity channel the method for data on the originating terminal mobile device.
Figure 10 is the block diagram that the functional part example that is used for the targeted wireless device 1000 that communicates by reciprocity channel is shown.
Figure 11 illustrates and operates in the example that is used for receiving by reciprocity channel the method for data on the target mobile device.
Figure 12 is the block diagram that the telecommunication circuit example that is applicable to the mobile device that can carry out FDD that receives by reciprocity channel is shown.
Figure 13 is the block diagram of example that the functional part of the network manager that is used to make things convenient for the direct peer link between two or more mobile devices is shown.
Figure 14 illustrates the example that operates in the method that is used to set up reciprocity channel on the network manager device, and wherein by reciprocity channel, two or more mobile devices can direct communication.
Embodiment
In the following description, provide detail, so that the thorough to example and formation to be provided.Yet those of ordinary skill in the art should be appreciated that does not have these details can implement these examples and formation yet.For example, for fear of fuzzy these examples of unnecessary details and formation, in the block diagram circuit may be shown not.
And, can notice, can and constitute the process that is described as shown in flow chart, flow diagram, structure chart or block diagram with example.Although flow chart can be described as operation orderly process, many operations can walk abreast or carry out simultaneously.In addition, can rearrange the order of operation.When the operation of process was finished, process finished.Process can be corresponding to method, function, step, subroutine, subprogram or the like.When process during corresponding to function, its end is back to call function or principal function corresponding to this function.
In addition, storage medium can be represented one or more equipment that are used to store data, comprises read-only memory (ROM), random access storage device (RAM), magnetic disk storage medium, optical storage media, flash memory device and/or is used for other machine readable media of stored information.Term " machine readable media " includes, but not limited to portable or fixing memory device, light storage device, wireless channel and can store, comprises or carry various other media of instruction and/or data.
In addition, can realize example and formation by hardware, software, firmware, middleware, microcode or their combination.When realizing, can be stored in machine readable media with being used for carrying out the program code of necessary task and code segment such as storage medium or other memory module with software, firmware, middleware or microcode.Processor can be carried out necessary task.Code segment can be represented step, function, subprogram, program, routine, subroutine, module, software kit, class, the combination of perhaps instruction, data structure or program statement.Code segment can be coupled in another code segment or the hardware circuit by transmitting and/or reception information, data, independent variable, parameter or memory contents.Can comprise Memory Sharing, message transmission, token transmission and Network Transmission or the like via suitable means, transmit, transmit or transmission information, independent variable, parameter, data or the like.
A feature provides the system and method that is used to promote two transfer of data between the wireless device, to support local the connection under the situation that does not need multimedia server.By utilizing the communication band be generally used for via the telecommunication of base station to set up two communications between the wireless device again, between two wireless devices, to set up local (short distance) high-speed link.By avoid to additional hardware need be to realize short-haul links, the dual use of this communication band has also improved spectrum efficiency.By sending the request of setting up two channels between the wireless device, set up the pattern of this equity (P2P) junction service to the base station.In case set up or the reservation channel, two wireless devices just can direct communication.
Another feature is used to use single frequency to make the wireless device of time division duplex (TDD) and Frequency Division Duplexing (FDD) (FDD) communicate with one another by peer link.That is, peer link is by the uplink channel definition of FDD network, and the frequency of the transmission channel of the frequency of the uplink channel of FDD network and TDD network is basic identical.In reciprocity channel, can use time slot, with transmission information between TDD and/or FDD wireless device.
Here employed term " wireless device " and " mobile device " are meant the equipment with wireless communication interface.
Fig. 1 illustrates the block diagram that can realize the direct locally-attached formation example between two wireless devices in the cordless communication network of being managed.User equipment (UE) 1 102 and UE2 104 can be to operate by the pattern (via network manager 106) of being managed or with the pattern of equity.In the quilt pattern of managing, arrive/pass network manager 106 from the communication of UE1 102 or UE2 104, network manager 106 can allocation of communication channels (for example, frequency and/or time slot), verifying user equipment and/or handle arrives/from the communication of subscriber equipment.Term " network manager " is meant basic network equipment (for example, base station, Node B, network controller etc.), and it sets up communication, allocated channel etc. between mobile device.
In the pattern of equity, two wireless devices (that is, point) are shared resource and information each other, and they have equal ability and responsibility, and their also servers particularly not of client particularly neither.Originator device UE1 102 request network managers 106 are set up channel (for example, frequency and/or time slot) with target device UE2 104.Network manager 106 allocated channels (for example, frequency and/or time slot), and, kept the channel/time slot that is distributed for this locality communication between them to target device UE2 104 and/or originating subscriber equipment UE 1 102 notices.The channel that is distributed can be in the communication spectrum of authorizing, the communication that the communication spectrum of this mandate typically is used for the being managed wan communication of network manager 106 (for example, via).Then, originator device UE1 102 can be to target device UE2 104 transmission information (for example, voice communication, data, file etc.), and vice versa.In a single day communication between UE1 102 and the UE2 104 finished, and just sends message, the channel that is distributed to abandon (for example, frequency of being distributed and/or time slot) by UE1 102 and/or UE2 104 to network manager 106.
Should be noted that the high speed local of UE1 102 and 104 of UE2 is connected operation when can provide the communication of being managed (for example, voice and/or data are used) at other parts miscellaneous equipment UE3 108 in wide area network of network manager 106 use frequency spectrums.That is, reuse the normal frequency band that uses of network to set up peer link/channel.
In a single day peer link is set up, is distributed or keep, and equipment UE 1 and UE2 just can share the resource such as data or file transfer or exchange.For example, originator device UE1 102 can manage backup information on target device UE2 104.Target device UE2 104 accepts or the request of refusal backup information.If accepted backup request, originator device UE1 102 just sends the information that will back up to target device UE2 104, and this information is kept on the target device UE2 104.In another example, predetermined protocol may reside between originator device 102 and the target device UE2 104, is used to allow originator device UE1 102 to target device UE2 104 backup informations.In other example, the data of other type can be transmitted via peer link between wireless device UE1 102 and UE2 104.
In an example, peer link is used for this locality or the junction service between wireless device UE1 and UE2.That is, peer link allows at a distance of communicating from several inches wireless devices to the hundreds of foot.By contrast, can operate surpassing on several miles the distance to the communication link of cellular network device (for example, base station, Node B etc.).Because peer link is local, so when communicating by peer link and another equipment, wireless device can reduce its transmitted power level.In addition because peer link is local, so network manager 106 geographically separate areas reuse the same frequency/time slot channel that is used for a plurality of peer link simultaneously.That is, as long as the wireless device by the first reciprocity channel communication is geographically away from the wireless device that communicates by the second reciprocity channel, the first and second reciprocity channels just may operate on essentially identical frequency and/or the time slot so.
Local connection session or high-speed link that wireless device UE1 102 and UE2 are 104 can be realized with various protocols, for example, comprise that high-speed downlink packet inserts (HSDPA) agreement or 1x Evolution-Data Optimized (EVDO) agreement.Suppose that channel conditions is favourable, transmission rate can be near maximum theoretical, and the transmitting power that comes from two wireless device UE1 102 and UE2 104 simultaneously is lower.This helps the influence of the interference and/or the last utilization of resources of network manager 106 (for example, Node B or base station) is minimized.Because two equipment is very close to each other with the distance of network manager 106 respectively with respect to them, so locate visible and be minimum by the interference that peer link causes at network manager 106 (for example, Node B or base station).
This method can use that existing radio hardware realizes among wireless device UE1 102 and the UE2 104, and therefore, there is no need increases extra wireless device to wireless device UE1 102 and/or UE2 104.
Reciprocity operational mode shown in Fig. 1 can realize with various communication constructions and/or scheme.For example, Frequency Division Duplexing (FDD) (FDD) and time division duplex (TDD) are two kinds of duplexing schemes the most general that are used in the wireless network.
In order to make TDD and FDD wireless device communicate with one another, reciprocity channel is defined as the uplink channel that can carry out FDD equipment, and/or can carry out the transmission channel of TDD equipment, wherein, FDD uplink channel and TDD transmission channel all use essentially identical frequency and time slot.
Fig. 2 illustrates the uplink channel of Frequency Division Duplexing (FDD) (FDD) network and the example of downlink channel.FDD has been used for voice application in the past, and by using two kinds of different radio channels to support transmitting and receiving service.In the wireless system that uses FDD, a frequency 202 typically is used as downlink channel, so that information is sent to mobile device from contact manager (for example, home base stations).Second frequency 204 typically is used as uplink channel, so that information is sent to contact manager (for example, Node B or base station) from mobile device.Because this pair frequency is possible so send simultaneously at both direction.Typically, downlink channel 208 and uplink channel 210 are distributed in respectively in downlink band and the uplink band.For the oneself of alleviating between the transmission of uplink channel transmission and downlink channel disturbs, the minimum quantity of frequency separation is remained between two channels that distributed 202 and 204.
Fig. 3 illustrates the example of interior uplink channel of time division duplex (TDD) network and downlink channel.In the wireless system that uses TDD, single-frequency 306 is divided into time slot TS1, TS2, TSn, channel that is used on down link and up link both direction, sending signal of each time slot definition.For example, can give different wireless devices with each TS time slot allocation, be used for that wireless device between communicate by letter.Each time slot can also be divided into uplink channel 302 and downlink channel 304.In addition, can adjust the size (for example, the time distributes) of (that is, increase or reduce) uplink channel 302 and downlink channel 304 according to expectation.
According to a realization, can set up peer link/channel, so that FDD and TDD wireless device communicate with one another.For example, network manager can distribute reciprocity channel, so that TDD frequency 306 (Fig. 3) is basic identical with FDD uplink frequency 204 (Fig. 2).Like this, the wireless device that can carry out TDD communicates on the communication channel of being distributed (that is, the TSn time slot on the frequency 306), and the wireless device that can carry out FDD uses its uplink channel 210 (that is, on frequency 204) to communicate with one another.
This peer link also allows two or more wireless devices that can carry out TDD to communicate with one another by channel frequency 306.Equally, two or more wireless devices that can carry out FDD can communicate with one another by uplink channel frequency 206.That is, FDD equipment uses uplink channel 202, to send and receive information by direct peer link.
Fig. 4 illustrates an example of the peer link 402 between two wireless devices 404 and 406.Set up peer link 402, so that local TDD channel frequency and FDD uplink channel frequency are basic identical.Then, use one or more time slot TS
P2PCommunication between wireless device 404 and 406.In this example, device A 404 can be initiated to the transfer of data of equipment B 406.If equipment B 406 is the equipment that can carry out FDD, can reconfigure so, so that on FDD uplink frequency (rather than down-link frequencies), intercept or receive with time slot.In a single day equipment B 406 receives data, just can reply acknowledge message by peer link 402.
In interchangeable realization, can substitute and set up peer link, so that local TDD channel frequency and FDD downlink channel frequency are basic identical.In this was realized, the equipment that can carry out FDD can be reconfigured for and use time slot to send on FDD down-link frequencies (rather than uplink frequency).
Can make ins all sorts of ways sets up peer link in the communication network of being managed.
Fig. 5 illustrates the example of the request-response method that is used to realize two peer-to-peer communication links between the wireless device.Originator device 502 sends peer link request 508 to network controller 504, and it comprises originator wireless device ID and targeted wireless device ID.Then, network controller 504 is this peer link allocated channel 510.Then, the invitation message that will have originator device ID and the channel that distributed sends to targeted wireless device 512.Target device 506 accepts the invitation 514, and begins to intercept the reciprocity channel 516 that is distributed.Network controller 504 sends the affirmation message 518 that peer link has been set up to originator wireless device 502.This acknowledge message can also provide the reciprocity channel that is distributed to originator device 502.Then, originator device 502 can be by starting the session 520 on the peer link to target device transmission information.Then, whether target device 506 sends and is used for the indication information affirmation message 522 of success transmission.Originator device 502 can send to network controller 504 and be used to the message 524 of indicating transmission to finish.
In some implementations, can also be from target device 506 to originator device 502 transmission data.For example, in case originator device 502 has been initiated peer link, and this peer link sets up, and target device 506 just can send data to originating terminal 502 so.Selectively, originator device 502 can be from target device 506 request msgs, and then, target device 506 just sends the data of being asked by peer link.Therefore, peer link can be used for the bidirectional data transfers of one-way data transmission (for example, from the originator device to the target device or from the target device to the originator device) and/or two or more equipment rooms.
Fig. 6 illustrates the example of the peer list method that is used to realize two peer-to-peer communication links between the wireless device.In this method, originator device 602 is from network controller 604 request peer link 608.Near all available and tabulations 610 wireless device that can reach network controller 604 obtains.Network controller 604 also is a peer link allocated channel 612.Locating information based on being gathered by network controller 604 sends to originator device 602 with this tabulation.For example, network controller 604 can relatively come from the radio frequency signatures of different radio equipment, and according to the geography information of these equipment they is grouped in together.To send to originator device 614 with one group of wireless device that the radio frequency signatures of originator device is mated most.
Then, originator device 602 is the select target wireless device from the tabulation that receives, and sends it to network controller 616.Then, the invitation message that will have originator device ID and the channel that distributed sends to targeted wireless device 618.Target device 606 is accepted this invitation, setting up peer link 620 with originator device 602, and begins to intercept the reciprocity channel 622 that is distributed.Network controller 604 sends the affirmation message 624 that peer link has been set up to originator device 602.Then, originator device 602 starts the session 626 on the peer link by sending information to target device.In case receive information from originator device 602, whether target device 606 just can send and be used for the indication information affirmation message 628 of success reception.Originator device 602 can send to network controller 604 and be used to the message 630 of indicating transmission to finish.
A characteristics specify originator device is the specific frequency of reciprocity channel request.Because other wireless device common share communication frequency spectrum in reciprocity channel and the network, so originator device can scanning channel (for example, time slot or uplink frequency) not have the frequency of interference with identification.Then, can be from the one or more frequencies of discerning of network manager request, to set up peering session.
Selectively, originator device can scan or detect all channels to discern those available channels.Then, available channel is reported to network manager with the request to reciprocity channel.The availability of the available channel resources that the network manager inspection is reported, and instruct originating terminal and target device to use the frequency channels that is distributed.
Also have a plurality of channels that characteristics specify will gather.Originator device can aggregate channels, increasing the bandwidth of peer link, thereby improves the transmission rate of data.
Fig. 1,4 and 5 described system and methods can also make network controller can monitor the length of each reciprocity channel session, thereby the service provider can be charged to the user to this session.For example, network manager knows when distribute and discharge equipment related in reciprocity channel and the peering session.
Fig. 7 illustrates the block diagram that can be used for the mobile device example that communicates by peer link.Mobile device 700 can be used as originator device (for example, asking the equipment of reciprocity channel) and/or target device (for example, receiving the equipment of data from originator device) is operated.Mobile device 700 comprises the treatment circuit 702 that is coupled to data storage device 704 and telecommunication circuit 706.Treatment circuit 702 can be used to start reciprocity channel (that is, when operating as originator device), or accepts the invitation (that is, when operating as target device) set up reciprocity channel.For example, when operating as originator device, the data that are stored in the memory device 704 can send to target device from mobile device 700 via telecommunication circuit 702.
Fig. 8 is the block diagram that the functional part example that is used for the originator wireless device 800 that communicates by reciprocity channel is shown.Originator wireless device 800 comprises: channel request device 802 is used to ask the reciprocity channel with the targeted wireless device direct communication; Channel receiver 806 is used for obtaining reciprocity channel from wireless network manager; With data transmitter 804, be used for by reciprocity channel directly to targeted wireless device transmission data.In addition, be used in originator wireless device 800 under the situation of FDD operation, it comprises frequency adjuster 808, be used to adjust its receive frequency, with when operating in ad-hoc mode, on uplink channel frequency, receive, otherwise on downlink channel frequency, receive.Confirm that receiver 810 can receive the affirmation that has received the data of being transmitted from targeted wireless device, and channel release 812 informing network managers can discharge reciprocity channel.
Therefore, provide a kind of Wireless Telecom Equipment, comprise (a): the module that is used to ask the reciprocity channel that directly communicates with targeted wireless device; (b) be used for obtaining the module of reciprocity channel from wireless network manager; (c) be used for data directly being transferred to the module of targeted wireless device by reciprocity channel.In addition, this Wireless Telecom Equipment also comprises: (d) be used for the module of launching on uplink channel frequency; (e) be used for when operating in ad-hoc mode, on uplink channel frequency, receiving, otherwise the module that on downlink channel frequency, receives.This Wireless Telecom Equipment also comprises: (f) be used for receiving the module that has received the affirmation of the data of being transmitted from targeted wireless device; (g) being used for informing network manager equity channel can d/d module.
Fig. 9 illustrates and operates in the example that is used to set up and send by reciprocity channel the method for data on the originating terminal mobile device.The originating terminal mobile device can scan available channel 900, and discerns one or more available channels 902.In addition, it can obtain the tabulation 904 of one or more potential target devices.Then, from the reciprocity channel 906 of wireless network manager request and target device.Then, obtain reciprocity channel 908 from wireless network manager.In some implementations, one or more channels can be aggregated into reciprocity channel to increase system bandwidth.
By reciprocity channel transfer of data is arrived target device 910.Acquisition or receiving target equipment have received the affirmation 912 of data.Then, transmission is asked with release or is stopped reciprocity channel 914.
Figure 10 is the block diagram that the functional part example that is used for the targeted wireless device 1000 that communicates by reciprocity channel is shown.Targeted wireless device 1000 comprises: invite receiver 1002, be used for receiving the invitation of setting up reciprocity channel with originator wireless device from network manager; Transmitter 1004 is used for sending the answer of accepting the invitation to network manager; With data receiver 1006, be used for directly receiving data from originator device by reciprocity channel.Targeted wireless device 1000 also comprises: memory device 1008 is used for the data that local storage receives; With affirmation transmitter 1010, be used for sending the affirmation that has received data to originator wireless device.In addition, be used at target mobile device 1000 under the situation of FDD operation, it also comprises frequency adjuster 1012, is used for the frequency that the target mobile device receives is adjusted to uplink channel frequency from downlink channel frequency.
Therefore, provide a kind of Wireless Telecom Equipment, comprising: (a) be used for setting up the module of the invitation of reciprocity channel with originator wireless device from the network manager reception; (b) be used for sending the module of the answer accept the invitation to network manager; (c) be used for directly receiving the module of data from originator device by reciprocity channel.In addition, this Wireless Telecom Equipment comprises: the module that (d) is used for the data that receive are carried out local storage; (e) be used for sending the module of the affirmation received data to originator wireless device.In addition, be used at target mobile device 1000 under the situation of FDD operation, it comprises that also the frequency that is used for that the target mobile device is received adjusts to the module of uplink channel frequency from downlink channel frequency.
Figure 11 illustrates and operates in the example that is used for receiving by reciprocity channel the method for data on the target mobile device.Receive the invitation 1102 of setting up reciprocity channel with originator device from network manager.Send the answer 1104 of accepting this invitation to network manager.Then, obtain reciprocity channel information 1106.Selectively, be can carry out under the situation of FDD at the target mobile device, the receiver that it is set is to receive 1108 on its FDD uplink channel frequency.Then, the target mobile device is intercepted reciprocity channel 1110.Receive data 1112 from originator device by reciprocity channel, and be stored in local 1114.Send the affirmation 1116 that has received data to originator device.
Figure 12 is the block diagram that the telecommunication circuit example that is applicable to the mobile device that can carry out FDD that receives by reciprocity channel is shown.This telecommunication circuit comprises transmitter chain 1202 and diversity reception chain 1204 and 1206.
May to adopt the signal in different paths in order receiving better, to use diversity receiver framework with two receiver chains 1204 and 1206 and two respective antenna 1218 and 1220.First receiver chain 1204 is from duplexer 1216 received signals, use downlink filter 1222 to its filtering, use 1224 pairs of filtered signals of linear amplifier to amplify, and utilize the down-link frequencies that comes from down link oscillator 1228 to use quadrature demodulator 1226, with the baseband signal I/Q BB 1213 that obtains to receive to its demodulation.
Do not receive on uplink frequency because can carry out the mobile device of FDD, therefore second receiver chain 1206 is reconfigured on down-link frequencies 1228 and uplink frequency 1210 and receives.This is to be finished by switch 1230,1232 and 1234, wherein, these switches make second receiver chain 1206 or are receiving (when operating in ad-hoc mode) on the uplink frequency, or receive (when operating in fdd mode) on the down-link frequencies.When operating in ad-hoc mode, signal 1220 receives on antenna 2, by uplink filter 1236 (being used to allow uplink frequency to pass through) filtering, amplify by linear amplifier 1238, and utilize the uplink frequency demodulation that comes from up link oscillator 1210 by quadrature demodulator 1240, to obtain baseband signal I/QBB 1233.Selectively, when operating in fdd mode, the signal 1220 that on antenna 2, receives, by downlink filter 1242 (being used to allow uplink frequency 1210 to pass through) filtering, amplify by linear amplifier 1238, and utilize the down-link frequencies demodulation that comes from down link oscillator 1210 by quadrature demodulator 1040, to obtain baseband signal I/Q BB 1233.Therefore, according to operational mode, can with second receiver chain 1206 be tuned to uplink frequency or down-link frequencies.
In some implementations, the waveform by the mobile device emission that operates in ad-hoc mode is similar to the downlink waveform that comes from base station or Node B.So, just there is no need to change the Signal Processing mode of mobile device that is used to receive to receiving by reciprocity channel.Typically, increase transmitted waveform generation part and be considered to simpler than the receiving unit that changes mobile device.In interchangeable realization, can produce and receive this waveform by the configuration mobile device and substitute the waveform that uses other type.
Therefore,, can not need extra wireless device, effectively use uplink spectrum, and reuse existing hardware by reusing existing wireless device and the frequency spectrum that distributed to realize peer link.
Figure 13 is the block diagram of example that the functional part of the network manager 1300 that is used to promote the direct peer link between two or more mobile devices is shown.Network manager 1300 comprises the treatment circuit 1302 that is coupled to radio communication circuit 1304 and channel dispenser 1306.Network manager 1300 can be base station, network controller, other basic network equipment or their combination.Treatment circuit 1302 can be used for receiving the message that is used to ask the peer link between originator wireless device and the targeted wireless device from radio communication circuit 1304.Treatment circuit 1302 obtains channel (for example, one or more available frequencies and/or time slot) from channel dispenser 1306, and it is distributed to peer link.In various realizations, network manager can be as operating described at Fig. 1,5 and/or 6.
Figure 14 illustrates the example that operates in the method that is used to set up reciprocity channel on the network manager device (for example, base station, Node B), and by this channel, two or more mobile devices can direct communication.Reception is to the request 1402 of the peer link between originator wireless device and the targeted wireless device.Notify the request 1404 of originator wireless device by network manager to targeted wireless device to peer link.Network manager determines whether targeted wireless device has accepted the peer link 1406 with originator wireless device.That is, network manager can be accepted message or refuse information from targeted wireless device.If receive refuse information, network manager just is notified to refusal originator wireless device 1407.Otherwise,, just distribute one or more channels 1408 for this peer link if targeted wireless device is accepted and the peer link of originator wireless device.Then, notify the channel that is distributed 1410 that is used for this peer link to originating terminal and targeted wireless device.
In case originating terminal and targeted wireless device use this peer link, network manager just receives and is used to indicate this peer link can d/d message 1412.Then, network manager just discharges and is used for the channel 1414 of peer link, so that can also reuse them.
Single step can be rearranged and/or be combined into to one or more steps and function shown in Fig. 1,2,3,4,5,6,7,8,9,10,11,12,13 and/or 14 or with some step specific implementations, and do not depart from the present invention.Can increase extra parts and/or step, and not depart from the present invention.Device, equipment and/or parts shown in Fig. 1,4,7,8,10,12 and/or 13 can be used for method, feature or the step shown in execution graph 5,6,9,11 and/or 14.
Aforesaid example and formation only are examples, are limitations of the present invention and should not be construed as.The description of example and formation is intended to illustrate and the scope of unrestricted claims.Like this, this instruction can easily be applied to the device of other type, and multiple replacement, modification and distortion are conspicuous to those skilled in the art.
Claims (53)
1, a kind of method that is used for setting up at wireless network reciprocity channel on the originator wireless device that operates in comprises:
The reciprocity channel of request and targeted wireless device direct communication;
Obtain described reciprocity channel from wireless network manager; And
By described reciprocity channel data directly are transferred to described targeted wireless device.
2, the method for claim 1, wherein described reciprocity channel is used to make time division duplex (TDD) and Frequency Division Duplexing (FDD) (FDD) wireless device to communicate with one another.
3, method as claimed in claim 2, wherein, described reciprocity channel is a communication channel in time division duplex (TDD) network, and in Frequency Division Duplexing (FDD) (FDD) network, be uplink channel, described communication channel and uplink channel use essentially identical frequency and distributed time slot, to promote carrying out TDD and can carry out interoperability between the wireless device of FDD.
4, the method for claim 1, wherein described reciprocity channel is a uplink channel in Frequency Division Duplexing (FDD) (FDD) wireless device, and not only is used for receiving but also be used for sending.
5, the method for claim 1, wherein described originator wireless device is a cell phone.
6, the method for claim 1, wherein, described targeted wireless device comprises in the following equipment one: computer, cell phone, personal digital assistant, audio frequency apparatus, video equipment, camera, display device, printer or digital storage equipment.
7, the method for claim 1, wherein to the described targeted wireless device of the request mark of direct reciprocity channel.
8, the method for claim 1 also comprises:
Obtain the tabulation of potential target wireless device; And
From described tabulation, select described targeted wireless device.
9, the method for claim 1 also comprises:
Scan available channel;
Discern one or more available channels; And
Be in the described one or more channels of discerning of described direct reciprocity channel request at least one.
10, the method for claim 1, wherein described originator wireless device uses described targeted wireless device to come Backup Data.
11, the method for claim 1 also comprises:
Receive the affirmation that has received the data of being transmitted from described targeted wireless device; And
Notify described network manager can discharge described reciprocity channel.
12, the method for claim 1 also comprises:
One or more channels are aggregated in the described reciprocity channel, to increase bandwidth.
13, the method for claim 1, wherein described reciprocity channel is the local[remote that is used for the junction service between described originator wireless device and the described targeted wireless device.
14, a kind of radio communication device comprises:
Memory device;
Radio receiving-transmitting unit;
Be coupled to the processor of described memory device and described radio receiving-transmitting unit, described processor is used for:
The reciprocity channel of request and targeted wireless device direct communication;
Obtain described reciprocity channel from wireless network manager; And
By described reciprocity channel data directly are transferred to described targeted wireless device.
15, device as claimed in claim 14, wherein, described reciprocity channel is used to make time division duplex (TDD) and Frequency Division Duplexing (FDD) (FDD) wireless device to communicate with one another.
16, device as claimed in claim 14, wherein, described reciprocity channel is a communication channel in time division duplex (TDD) network, and in Frequency Division Duplexing (FDD) (FDD) network, be uplink channel, described communication channel and uplink channel use essentially identical frequency and distributed time slot, to promote carrying out TDD and can carry out interoperability between the wireless device of FDD.
17, device as claimed in claim 14, wherein, described radio receiving-transmitting unit comprises:
The diversity reception chain is used for receiving on uplink channel frequency when operating in ad-hoc mode, otherwise receives on downlink channel frequency.
18, device as claimed in claim 14, wherein, described radio receiving-transmitting unit is used at Frequency Division Duplexing (FDD) (FDD) network communication, and described transceiver also comprises:
Be tuned to the transmitter circuitry on uplink frequency, launched;
Be tuned to the first diversity reception machine circuit that on down-link frequencies, receives; With
Be adjustable on the described uplink frequency or the second diversity reception machine circuit that on described down-link frequencies, receives according to operational mode.
19, device as claimed in claim 14, wherein, described processor also is used for:
Discern one or more potential targeted wireless device, wherein, from described potential targeted wireless device, select described targeted wireless device.
20, a kind of Wireless Telecom Equipment comprises:
Be used to ask module with the reciprocity channel of targeted wireless device direct communication;
Be used for obtaining the module of described reciprocity channel from wireless network manager; With
Be used for data directly being transferred to the module of described targeted wireless device by described reciprocity channel;
21, Wireless Telecom Equipment as claimed in claim 20 also comprises:
The module that is used on uplink channel frequency, launching; With
Be used for when operating in ad-hoc mode, on described uplink channel frequency, receiving, otherwise the module that on downlink channel frequency, receives.
22, Wireless Telecom Equipment as claimed in claim 20 also comprises:
Be used for receiving the module that has received the affirmation of the data of being transmitted from described targeted wireless device; With
Be used to notify the described reciprocity channel energy of described network manager d/d module.
23, a kind of treatment facility comprises:
Treatment circuit is used for:
The reciprocity channel of request and targeted wireless device direct communication;
Obtain described reciprocity channel from wireless network manager; With
By described reciprocity channel data directly are transferred to described targeted wireless device.
24, treatment facility as claimed in claim 23, wherein, described reciprocity channel is the local[remote that carries out junction service with described targeted wireless device.
25, treatment facility as claimed in claim 24, wherein, described peer link is defined by frequency and time slot.
26, a kind of machine readable media has one or more instructions that are used for setting up at wireless network reciprocity channel on the originator wireless device that operate in, and impels described processor when processor is carried out described instruction:
The reciprocity channel of request and targeted wireless device direct communication;
Obtain described reciprocity channel from wireless network manager; And
By described reciprocity channel data directly are transferred to described targeted wireless device.
27, machine readable media as claimed in claim 26 also has one or more instructions that impel described processor to carry out following steps when being carried out by processor:
Obtain the tabulation of potential target wireless device; And
From described tabulation, select described targeted wireless device.
28, machine readable media as claimed in claim 26 also has one or more instructions that impel described processor to carry out following steps when being carried out by processor:
Scan available channel;
Discern one or more available channels; And
Be in the described one or more channels of discerning of described direct reciprocity channel request at least one.
29, be used on a kind of operational objective wireless device at wireless network comprising by the method that reciprocity channel communicates:
Receive the invitation of setting up reciprocity channel with originator wireless device from network manager;
Send the answer of accepting described invitation to described network manager; And
Directly receive data by described reciprocity channel from described originator device.
30, method as claimed in claim 29 also comprises:
Received data are carried out this locality storage; And
Send the affirmation that has received described data to described originator wireless device.
31, method as claimed in claim 29 also comprises:
When described targeted wireless device was Frequency Division Duplexing (FDD) equipment, configuring receiver was to receive on uplink channel frequency.
32, method as claimed in claim 29, wherein, described reciprocity channel is used to make time division duplex (TDD) and Frequency Division Duplexing (FDD) (FDD) wireless device, and distributed time slot communicates with one another on the characteristic frequency by using.
33, a kind of Wireless Telecom Equipment comprises:
Be used for setting up the module of the invitation of reciprocity channel with originator wireless device from the network manager reception;
Be used for sending the module of the answer of accepting described invitation to described network manager; With
Be used for directly receiving the module of data from described originator device by described reciprocity channel.
34, Wireless Telecom Equipment as claimed in claim 33 also comprises:
Be used for received data are carried out the module of local storage; With
Be used for sending the module of the affirmation that has received described data to described originator wireless device.
35, Wireless Telecom Equipment as claimed in claim 33 also comprises:
Be used for when described Wireless Telecom Equipment is Frequency Division Duplexing (FDD) equipment, the frequency that described Wireless Telecom Equipment is received is adjusted to the module of uplink channel frequency from downlink channel frequency.
36, a kind of treatment facility comprises:
Treatment circuit is used for:
Receive the invitation of setting up reciprocity channel with originator wireless device from network manager;
Send the answer of accepting described invitation to described network manager;
Intercept described reciprocity channel; And
Directly receive data by described reciprocity channel from described originator wireless device.
37, treatment facility as claimed in claim 36, wherein, described reciprocity channel is the local[remote that carries out junction service with described targeted wireless device.
38, treatment facility as claimed in claim 36, wherein, described peer link is defined by frequency and time slot.
39, a kind of machine readable media has one or more operating in and is used for the instruction that communicates by reciprocity channel at wireless network on the targeted wireless device, impels described processor when processor is carried out described instruction:
Receive the invitation of setting up reciprocity channel with originator wireless device from network manager;
Send the answer of accepting described invitation to described network manager;
Intercept described reciprocity channel; And
Directly receive data by described reciprocity channel from described originator device.
40, machine readable media as claimed in claim 39 also has one or more instructions that impel processor to carry out following steps when being carried out by processor:
Received data are carried out this locality storage; And
Send the affirmation that has received described data to described originator wireless device.
41, machine readable media as claimed in claim 39 also has one or more instructions that impel processor to carry out following steps when being carried out by processor:
When described radio communication device was Frequency Division Duplexing (FDD) equipment, the receiver of adjusting described radio receiving-transmitting unit was to receive on uplink channel frequency.
42, a kind of radio set comprises:
Be tuned to the transmitter circuitry on uplink frequency, launched;
Be tuned to the first diversity reception machine circuit that on down-link frequencies, receives; With
Be adjustable on the described uplink frequency or the second diversity reception machine circuit that on described down-link frequencies, receives according to operational mode.
43, radio set as claimed in claim 42 also comprises:
Be coupled to first antenna of described transmitter circuitry to transmit from described transmitter circuitry, described first antenna also is coupled to the described first diversity reception machine circuit, so that receive the signal that is used for the described first diversity reception machine circuit; With
Be coupled to the described second diversity reception machine circuit so that receive second antenna of the signal that is used for the described second diversity reception machine circuit.
44, a kind of method that is used for setting up reciprocity channel on the wireless network manager device between wireless device that operates in comprises:
Reception is to the request of the peer link between originator wireless device and the targeted wireless device;
Be described peer link allocated channel; And
Give described originating terminal and targeted wireless device with the channel notification of being distributed.
45, method as claimed in claim 44 also comprises:
Described originator wireless device is notified to described targeted wireless device to the request of peer link; And
Determine whether described targeted wireless device is ready to accept the described peer link with described originator wireless device.
46, method as claimed in claim 45 also comprises:
Notify described targeted wireless device to accept described peer link to described originator wireless device.
47, method as claimed in claim 44, wherein, described peer link is by frequency and time slot definition.
48, method as claimed in claim 47, wherein, described frequency is a communication channel in time division duplex (TDD) network, and is uplink channel in Frequency Division Duplexing (FDD) (FDD) network, to promote carrying out TDD and can carry out interoperability between the wireless device of FDD.
49, method as claimed in claim 44 also comprises:
Obtain near the tabulation of available and wireless device that can the reach originator device; And
Send the tabulation of described wireless device to described originator wireless device, from this tabulation, can select described targeted wireless device.
50, method as claimed in claim 49 also comprises:
Come from the described wireless device in the described tabulation of radio frequency (RF) signature identification of described wireless device by use, they are divided into groups according to the geographical position.
51, method as claimed in claim 44 also comprises:
Reception is used to indicate the d/d message of described peer link energy; And
Discharge the described channel of described peer link.
52, a kind of network manager device comprises:
Radio communication circuit communicates by the wireless device in this circuit and the network; With
Treatment circuit is coupled to described radio communication circuit, and described treatment circuit is used for:
Reception is to the request of the peer link between originator wireless device and the targeted wireless device;
Be described peer link allocated channel; And
With described originating terminal of the channel notification of being distributed and targeted wireless device.
53, equipment as claimed in claim 52, wherein, described treatment circuit also is used for:
Notify of the request of described originator wireless device to described targeted wireless device to peer link;
Determine whether described targeted wireless device is ready to accept the described peer link with described originator wireless device;
Notify described targeted wireless device to accept described peer link to described originator wireless device;
Reception is used to indicate the d/d message of described peer link energy; And
Discharge the described channel of described peer link.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81819306P | 2006-06-30 | 2006-06-30 | |
| US60/818,193 | 2006-06-30 | ||
| US11/683,865 | 2007-03-08 |
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| CN101513114A true CN101513114A (en) | 2009-08-19 |
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| CNA2007800318722A Pending CN101513114A (en) | 2006-06-30 | 2007-07-02 | System and method for high speed local connectivity between local devices |
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| CN101902826A (en) * | 2010-06-30 | 2010-12-01 | 北京乔讯科技有限公司 | Method and system for establishing data connection |
| CN102695292A (en) * | 2009-08-21 | 2012-09-26 | 捷讯研究有限公司 | System and method for mobile network inter-device communications |
| CN102792759A (en) * | 2010-03-11 | 2012-11-21 | 诺基亚公司 | Method and apparatus for device-to-device communication setup |
| CN102845118A (en) * | 2010-04-15 | 2012-12-26 | 高通股份有限公司 | Multiplexing of peer-to-peer (p2p) communication and wide area network (wan) communication |
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| CN102695292B (en) * | 2009-08-21 | 2015-09-30 | 黑莓有限公司 | For the system and method for mobile network inter-device communications |
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| CN102845118B (en) * | 2010-04-15 | 2016-03-16 | 高通股份有限公司 | A kind of method for radio communication and device |
| CN101902826B (en) * | 2010-06-30 | 2013-09-25 | 北京乔讯科技有限公司 | Method and system for establishing data connection |
| CN101902826A (en) * | 2010-06-30 | 2010-12-01 | 北京乔讯科技有限公司 | Method and system for establishing data connection |
| CN103098532A (en) * | 2010-09-13 | 2013-05-08 | 高通股份有限公司 | Method, apparatus and computer program product to facilitate use of lte channelization structures and waveforms for peer-to- peer communications |
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