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CN1622658A - Method and apparatus for improving relay performance of mobile communication system - Google Patents

Method and apparatus for improving relay performance of mobile communication system Download PDF

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Publication number
CN1622658A
CN1622658A CNA2003101157967A CN200310115796A CN1622658A CN 1622658 A CN1622658 A CN 1622658A CN A2003101157967 A CNA2003101157967 A CN A2003101157967A CN 200310115796 A CN200310115796 A CN 200310115796A CN 1622658 A CN1622658 A CN 1622658A
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data flow
direct link
user terminal
data
trunk subscriber
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Inventor
贾群力
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Koninklijke Philips NV
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Koninklijke Philips Electronics NV
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Priority to CNA2003101157967A priority Critical patent/CN1622658A/en
Priority to PCT/IB2004/052521 priority patent/WO2005053338A1/en
Publication of CN1622658A publication Critical patent/CN1622658A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/12Avoiding congestion; Recovering from congestion
    • H04L47/125Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0215Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0231Traffic management, e.g. flow control or congestion control based on communication conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user

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

Abstract

一种在一个用户终端中执行的用于提高移动通信体系的中继性能的方法,包括步骤:检测该用户终端的各个直接链路;根据检测结果,从各个直接链路中选择可以使用的多个直接链路;检测各所选直接链路的中继用户终端(relayer)的数据处理能力;若各中继用户终端的数据处理能力满足转发数据的要求,则经由各所选直接链路,分别传送所述欲发送的数据流;若各中继用户终端的数据处理能力不能满足转发数据的要求,则根据各所选直接链路的状态,将欲发送的数据流拆分成各所选直接链路能够处理的数据流,并经由对应的各所选直接链路,将拆分得到的多个数据流发送出去。

Figure 200310115796

A method for improving the relay performance of a mobile communication system implemented in a user terminal, comprising the steps of: detecting each direct link of the user terminal; selecting available multiple direct links from each direct link according to the detection result direct link; detect the data processing capability of the relay user terminal (relayer) of each selected direct link; if the data processing capability of each relay user terminal meets the requirement of forwarding data, then via each selected direct link, Transmit the data streams to be sent separately; if the data processing capabilities of each relay user terminal cannot meet the requirements for forwarding data, then split the data streams to be sent into each selected according to the state of each selected direct link The data streams that can be processed by the direct link are sent out via the corresponding selected direct links.

Figure 200310115796

Description

Be used to improve the method and apparatus of the relaying performance of mobile communication system
Technical field
The present invention relates to a kind of communication means and device in the mobile communication system, relate in particular to a kind of method and apparatus that is used to improve relaying (relaying) performance of mobile communication system.
Technical background
As everyone knows, traditional cellular mobile communication system (such as, GSM mobile communication system, cdma mobile communication system etc.) with sub-district (cell) as basic communication unit.In each sub-district, the base station receives the signal from a user terminal as the signal relay center, gives the purpose user terminal with this signal forwarding then.This shows that in traditional cellular mobile communication system, user terminal only carries out direct communication with the base station, and does not communicate with the base station after can not transmitting signal via other user terminal again.
In traditional mobile communication system, because the coverage (coverage) of each sub-district is limited, and in the relatively more rare zone of personnel, reason owing to cost etc., can not arrange that a large amount of sub-districts covers these zones fully, so when user terminal is positioned at regional that the sub-district can not cover, user terminal can not communicate with the base station again.
In addition, because complicated building is arranged in the big city, can in the coverage of some sub-districts, form the zone of communication blind spot by name (dead spot).In the communication blind spot, user terminal had not both received from signal of base station, signal can not be sent to the base station.
Above-mentioned said all be the intrinsic defective of traditional mobile communication system.In order to overcome these defectives, that is to say, make user terminal be positioned at outside the coverage of sub-district or also can communicate during the communication blind spot with the base station, the enhancement techniques of a kind of multi-hop by name (multihop) has been proposed in traditional mobile communication system.
The multi-hop technology is a kind ofly to be used for peer-to-peer network originally, to make user terminal carry out signal forwarding (relaying) and relaying (relay) technology that communicates with the user terminal of apart from each other via other user terminal.By introduce the multi-hop technology in traditional mobile communication system, in the time of outside user terminal is positioned at communication blind spot or cell coverage area, it can communicate with the base station then by other user terminal forward signals.
Fig. 1 is a kind of schematic diagram of existing trunking traffic technology of the TD-SCDMA of being used for communication system.As shown in the figure, because user terminal UE0 is far away apart from base station 10, can not carry out direct communication with base station 10, so user terminal UE0 sends to base station 10 after signal n time by user terminal UE1...UEn transmitted, base station 10 sends to purpose user terminal (not shown) with the signal of receiving via radio network controller (RNC) 20 and core network (CN) 30 again.
Referring to Fig. 1, when signal was forwarded (relaying), the user terminal that sends this repeating signal communicated by directly being connected (direct connection) with the user terminal/base station that receives this repeating signal.For the convenience of narrating, will be called link (link) at user terminal that sends this repeating signal and the direct connection that receives between the user terminal/base station of this repeating signal below, as shown in Figure 1 direct connection L0, L1...Ln-1 and Ln are called link.
For a source user terminal, connected each bar link all is called a direct link (direct link) of this source user terminal.The source user terminal can send signal to each the trunk subscriber terminal as relaying via each direct link, again via each trunk subscriber terminal, forwards a signal to the trunk subscriber terminal or the base station of each next stage.With Fig. 1 is example, when the UE0 as the source user terminal sends signal via direct link L0, user terminal UE1 is as first order trunk subscriber terminal, forward a signal to the next stage user terminal, the user terminal of next stage is transmitted signal again, transmit through the n level at last, trunk subscriber terminal UE n passes the signal to base station 10 via link Ln.
As mentioned above, by in traditional mobile communication system, introducing the multi-hop technology, user terminal can communicate with the base station via the signal forwarding of other trunk subscriber terminal, but since the disposal ability of trunk subscriber terminal generally the disposal ability not as the base station is strong, so the trunk subscriber terminal can not be handled the data flow of two-forty as the base station, therefore, the link of source user terminal expectation by constituting by the trunk subscriber terminal, in the mode of this relaying, the data flow that sends two-forty to the base station is impossible.
In addition, even if transmission than the data of low rate because the signal handling capacity of trunk subscriber terminal is not as the base station, if adopt mode transmission signals shown in Figure 1, transmitting the back through the n level, to arrive signal of base station general more weak, is difficult to satisfy the requirement of communication quality.
Summary of the invention
An object of the present invention is to provide a kind of method and device that is used to improve the relaying performance of mobile communication system.Utilize this method and device, from the data flow of the higher rate of source user terminal, the data flow that can be divided into a plurality of low rates is sent to the base station via the trunk subscriber terminal that does not have the high data rate disposal ability.
Another object of the present invention provides a kind of method and device that is used to improve the relaying performance of mobile communication system.Utilize this method and device,, after the multistage forwarding through the multichannel link, can obtain a signal by diversity (diversity) technology through strengthening at the place, base station from the data flow than low rate of source user terminal.
According to a kind of method of in a user terminal, carrying out of relaying performance that is used to improve the mobile communication system of the present invention, comprise step: each direct link that detects this user terminal; According to testing result, from each direct link, select operable a plurality of direct link; Detect the data-handling capacity of the trunk subscriber terminal (relayer) of each selected direct link; If the data-handling capacity of each trunk subscriber terminal satisfies the requirement of transmitting data,, transmit the data flow that described desire sends respectively then via each selected direct link; If the data-handling capacity of each trunk subscriber terminal can not satisfy the requirement of transmitting data, then according to the state of each selected direct link, the data flow that desire is sent splits into the data flow that each selected direct link can be handled, and via each selected direct link of correspondence, a plurality of data flow that fractionation is obtained send.
According to a kind of method of in network system, carrying out of relaying performance that is used to improve the mobile communication system of the present invention, comprise step: receive the data flow that sends via multilink; A plurality of data flow to this reception detect; If testing result shows that these a plurality of data flow are the same data flow from same source user terminal that do not split, then should a plurality of data flow merge, obtaining the data flow of signal reinforcement, and the data flow after will merging sends to the purpose user terminal; If testing result shows each sub data flow that these a plurality of data flow were split, then should merge by a plurality of sub data flows, split preceding data flow to be reduced into, and the data flow after will reducing sends to the purpose user terminal.
The accompanying drawing summary
Fig. 1 is the schematic diagram that has adopted the trunking traffic technology in existing TD-SCDMA communication system;
Fig. 2 is the schematic diagram that adopts the trunking traffic technology according to of the present invention in the TD-SCDMA communication system;
Fig. 3 is the flow chart of the method for the relaying performance that is improved the mobile communication system by user terminal being used to of carrying out of the present invention;
Fig. 4 is the flow chart of the method for the relaying performance that is improved the mobile communication system by base station being used to of carrying out of the present invention;
Fig. 5 is the composition block diagram of relaying performance that is used to improve the mobile communication system according to one embodiment of the invention.
Detailed Description Of The Invention
Basic thought of the present invention is: when a source user terminal can not be carried out direct communication with when the base station sends data flow with the base station, whether the data-handling capacity that this source user terminal detects the trunk subscriber terminal in its each direct link satisfies the requirement of transmitting data, that is: the streaming rate that whether sends greater than this source user terminal desire of the streaming rate that can handle of the trunk subscriber terminal of each direct link.If the streaming rate that the streaming rate that each trunk subscriber terminal can be handled sends less than this source user terminal desire, then this source user terminal is divided into the sub data flow that several these trunk subscriber terminals can be handled with the data flow that desire sends, and then these sub data flows is forwarded to the base station via each trunk subscriber terminal.And if the streaming rate that the streaming rate that the trunk subscriber terminal can be handled sends greater than this user terminal desire, then this user terminal is forwarded to the base station via each trunk subscriber terminal respectively with the data flow with identical content that desire sends.
In order to make thought of the present invention clearer, be described in detail below in conjunction with Fig. 2.
As shown in Figure 2, when source user terminal UE 0 is want data flow is sent to base station 10, but can not carry out direct communication with the base station again the time, source user terminal UE 0 at first detects each coupled direct link, therefrom to select can be used as the link of relaying.If selected m direct link, that is: link L11, L12, L13 ..., L1m, then source user terminal UE 0 detect this m direct link L11, L12, L13 ..., the trunk subscriber terminal UE 1 of L1m, UE2, UE3 ..., whether the data-handling capacity of UEm satisfy the requirement of forwarding data.
If the speed data stream that source user terminal UE 0 sends is higher, user terminal UE1, UE2, UE3, ..., the streaming rate that the streaming rate that UEm can handle sends less than source user terminal UE 0 desire, then the source user terminal UE 0, the state (as: channel conditions of direct link according to each direct link in m the direct link, the energy state of the battery of the data-handling capacity of trunk subscriber terminal and trunk subscriber terminal), the data flow that desire is sent splits into m sub data flow, and via direct link L11, L12, L13, ..., L1m sends to trunk subscriber terminal UE 1, UE2, UE3, ..., UEm.Via trunk subscriber terminal UE 1, UE2, UE3 ..., m sub data flow transmitting of UEm after (being the n level shown in the figure) step by step forwarding by follow-up each trunk subscriber terminal, respectively via repeated link Ln1, Ln2, Ln3 ..., Lnm arrives base station 10.Because source user terminal UE 0 has split into m the data flow that speed is lower with the speed higher data stream that desire sends, therefore, each sub data flow after the fractionation can not be that very strong trunk subscriber terminals at different levels are forwarded to base station 10 via data-handling capacity.
If the speed data stream that the source user terminal sends is lower, user terminal UE1, UE2, UE3 ..., the streaming rate that sends greater than source user terminal UE 0 desire of the streaming rate that can handle of UEm, then the source user terminal UE 0, the data flow that content is identical respectively via direct link L11, L12, L13 ..., L1m send to trunk subscriber terminal UE 1, UE2, UE3 ..., UEm.Via trunk subscriber terminal UE 1, UE2, UE3 ..., the identical data flow of m content transmitting of UEm after (being the n level shown in the figure) step by step forwarding by follow-up each trunk subscriber terminal, respectively via repeated link Ln1, Ln2, Ln3 ..., Lnm arrives base station 10.Because source user terminal UE 0 has been passed through m bar repeated link with the data flow of the identical content of desire transmission and has been forwarded to base station 10, therefore, be equivalent to each road signal is sent to base station 10, thereby the method that base station 10 can utilize diversity to merge obtains than the measured signal of single channel relaying matter by space diversity.
Base station 10 receive from repeated link Ln1, Ln2, Ln3 ..., after m the data flow of Lnm, this m data stream is detected, if testing result shows m the sub data flow that obtains after this m data flow is split by source user terminal UE 0, then base station 10 merges this m sub data flow being reduced into the data flow before splitting, and the data flow after will reducing sends to the purpose user terminal via radio network controller (RNC) 20 and core network (CN) 30; If testing result show this m data flow be not through fractionation and be data flow with identical content from same source user terminal UE 0, then this m data flow is handled in the mode of diversity merging, to obtain the data flow of signal reinforcement; And the data flow after will merging sends to the purpose user terminal via radio network controller (RNC) 20 and core network (CN) 30.
Below in conjunction with flow chart shown in Figure 3, what the invention described above was described improves the method for the relaying performance of mobile communication system by user terminal UE0 being used to of carrying out.
When source user terminal UE 0 can not be directly and base station 10 communicate when sending data flow, this source user terminal UE 0 at first detects each coupled direct link, therefrom to select can be used as the link (step S10) of relaying, whether this user terminal UE0 data-handling capacity of detecting the trunk subscriber terminal of selected each direct link satisfies the requirement of transmitting data then, that is: the streaming rate (step S20) that whether sends greater than this source user terminal desire of the streaming rate that can handle of the trunk subscriber terminal of each direct link.
If the streaming rate that the streaming rate that the trunk subscriber terminal of 1 each direct link can be handled sends less than this user terminal desire
Source user terminal UE 0, according to the state of each direct link, the data flow that desire is sent splits into a plurality of sub data flows, and sends to each trunk subscriber terminal (step S30) via each selected direct link.Wherein, the state of each direct link, can comprise: the energy state of the data-handling capacity of the channel conditions of this direct link, trunk subscriber terminal and the battery of trunk subscriber terminal, source user terminal UE 0 can adopt to each direct link and send broadcast and obtain the state of each direct link from the report message that each direct link is replied.The state of corresponding each direct link, the source user terminal also is different for the load of the data flow of its distribution, if the streaming rate that the trunk subscriber terminal of the channel conditions of this direct link good (such as signal to noise ratio (snr) higher or bit error rate (BER) is lower), this direct link can be handled is higher and the energy content of battery abundance of trunk subscriber terminal, thereby this direct link can carry the higher data load in the unit interval, distributes transmission rate higher data stream then can for this moment this direct link; Otherwise, then distribute the lower data flow of transmission rate for this direct link.Corresponding different message transmission rates, the spreading factor that uses when the trunk subscriber terminal is transmitted sub data flow are also different, and data rate is high more, and spreading factor is low more.Because the reduction of spreading factor can cause the processing gain of trunk subscriber terminal to reduce, therefore, when data flow is split into each sub data flow, need to decide according to the state of each direct link, different direct link can carry the data of different load amount.
After the forwarding step by step by follow-up each trunk subscriber terminal, a plurality of sub data flows of transmitting via each repeated link are sent to base station 10 (step S40) respectively.
If the streaming rate that the trunk subscriber terminal of 2 each direct link can be handled is not less than the speed of the data flow of this user terminal desire transmission
Source user terminal UE 0, the data flow that content is identical send to each trunk subscriber terminal (step S70) via each direct link respectively.After the forwarding step by step by follow-up each trunk subscriber terminal, the identical a plurality of data flow of transmitting via each repeated link of content are sent to base station 10 (step S80) respectively.
Below in conjunction with flow chart shown in Figure 4, what the invention described above was described improves the method for the relaying performance of mobile communication system by base station 10 being used to of carrying out.
At first, a plurality of data flow (step S100) that base station 10 receives from each repeated link, then, 10 pairs of these a plurality of data flow in base station detect (step S110).
(1) if testing result shows a plurality of sub data flows that obtain after these a plurality of data flow are split by source user terminal UE 0, then base station 10 merges these a plurality of sub data flows being reduced into the data flow before splitting, and the data flow after will reducing sends to purpose user terminal (step S130); Wherein, if source user terminal UE 0 adopts a plurality of sub data flows after different frequency expansion sequences sends fractionation, then base station 10 can merge these a plurality of sub data flows the data flow that is reduced into before splitting according to the corresponding frequency expansion sequence of a plurality of sub data flows of receiving.
(2) if testing result show these a plurality of data flow be not through fractionation and be data flow with identical content from same source user terminal UE 0, then these a plurality of data flow are handled in the mode that diversity merges, thereby obtain the data flow that signal is strengthened, and the data flow after will merging sends to purpose user terminal (step S140); Wherein the mode of high specific merging or the mode of equal gain combining can be adopted in the base station, these a plurality of data flow are merged obtain the data flow that signal is strengthened.
The method that is used for improving the relaying performance of mobile communication system of the present invention both can be realized by the software module that operates in user terminal and base station, also can realize, can also adopt way of hardware and software combination to realize by hardware module with corresponding software function.
According to one embodiment of the invention be used to improve the mobile communication system the relaying performance composition as shown in Figure 5, wherein, the parts identical with legacy user terminals with the legacy network system are not shown in Figure 5.
As shown in Figure 5, user terminal 200 comprises: a detecting unit 204 is used to detect each direct link of this user terminal; A selected cell 205 is used for according to testing result, selects operable a plurality of direct link from each direct link; The data-handling capacity of the trunk subscriber terminal (relayer) of 204 pairs of each selected direct link of detecting unit detects; If the data-handling capacity of each trunk subscriber terminal satisfies the requirement of transmitting data, then by transmitting element 202, each selected direct link via this transmits the data flow that desire sends respectively; If the data-handling capacity of each trunk subscriber terminal can not satisfy the requirement of transmitting data, then by split cells 201, state of each selected direct link according to this, the data flow that desire is sent splits into the data flow that each selected direct link can be handled, and a plurality of data flow that fractionation obtained via transmitting element 202 send via each selected direct link of correspondence.Wherein, the state of direct link comprises the channel conditions of this direct link, the data-handling capacity of trunk subscriber terminal and the energy state of trunk subscriber end cell.
Receiving element 101 in the network system 100 by detecting unit 102, detects a plurality of data flow of this reception after a plurality of data flow of receiving from each repeated link; If testing result shows that these a plurality of data flow are the same data flow from same source user terminal that do not split, then merge cells 103 will these a plurality of data flow merge obtain data flow that signal strengthens after, via transmitting element 105, the data flow after merging is sent to the purpose user terminal; If testing result shows each sub data flow that these a plurality of data flow were split, then utilize reduction unit 104, after will these a plurality of sub data flows merging the data flow that is reduced into before splitting, the data flow after will reducing via transmitting element 105 again sends to the purpose user terminal.
Beneficial effect
In sum, the method for the relaying performance for improving the mobile communication system of the present invention reaches Device is when the streaming rate that the relaying user terminal can be processed is sent out less than this source user terminal wish During the streaming rate that send, because the source user terminal is torn the higher data flow of speed that wish sends open Being divided into the lower data flow of a plurality of speed, therefore, can not be very via data-handling capacity Strong trunk subscriber terminals at different levels are forwarded to the base station; And the number that can process when the relaying user terminal During the streaming rate that sends greater than this user terminal wish according to flow rate, because the source user terminal will The data flow of the identical content that wish sends has been passed through many repeated links and has been forwarded to the base station, therefore, Be equivalent to by space diversity each road signal is sent to the base station, thereby the base station can utilize the branch base The method that merges obtains than the measured signal of single channel relaying matter.
It will be appreciated by those skilled in the art that and disclosed in this inventionly carry for the mobile communication system The method of high relaying performance and device can be made each on the basis that does not break away from content of the present invention Plant and improve. Therefore, protection scope of the present invention should be true by the content of appending claims Fixed.

Claims (12)

1, a kind of method of carrying out in a user terminal of relaying performance that is used to improve the mobile communication system comprises step:
(a) detect each direct link of this user terminal;
(b), from each direct link, select operable a plurality of direct link according to testing result; With
(c) data flow that desire is sent sends via this selected direct link.
2, the method for claim 1 also comprises step:
Detect the data-handling capacity of the trunk subscriber terminal (relayer) of described each selected direct link;
If the data-handling capacity of each trunk subscriber terminal satisfies the requirement of transmitting data, then in step (c),, transmit the data flow that described desire sends respectively via described each selected direct link.
3, method as claimed in claim 2 also comprises step:
If the data-handling capacity of each trunk subscriber terminal can not satisfy the requirement of transmitting data, then according to the state of described each selected direct link, the data flow that desire is sent splits into the data flow that each selected direct link can be handled;
Wherein, in step (c), a plurality of data flow that fractionation is obtained send via each selected direct link of correspondence.
4, method as claimed in claim 3, wherein, the state of described direct link comprises in the energy state of the data-handling capacity of channel conditions, trunk subscriber terminal of this direct link and trunk subscriber end cell at least.
5, a kind of method of carrying out in network system of relaying performance that is used to improve the mobile communication system comprises step:
(1) receives the data flow that sends via multilink;
(2) a plurality of data flow to this reception detect;
(3) if testing result shows that these a plurality of data flow are the same data flow from same source user terminal that do not split, then should a plurality of data flow merge, to obtain the data flow that signal is strengthened; With
(4) data flow after will merging sends to the purpose user terminal.
6, method as claimed in claim 5 also comprises step:
If testing result shows each sub data flow that these a plurality of data flow were split, then should merge by a plurality of sub data flows, to be reduced into the data flow before splitting; And
Data flow after the reduction is sent to the purpose user terminal.
7, a kind of user terminal comprises:
A detecting unit is used to detect each direct link of this user terminal;
A selected cell is used for according to testing result, selects operable a plurality of direct link from each direct link; With
A transmitting element is used for the data flow that desire sends is sent via this selected direct link.
8, user terminal as claimed in claim 7, wherein:
Described detecting unit also is used to detect the data-handling capacity of the trunk subscriber terminal (relayer) of described each selected direct link; With
Satisfy the requirement of transmitting data if described detecting unit detects the data-handling capacity of each trunk subscriber terminal, then described transmitting element transmits the data flow that described desire sends respectively via described each selected direct link.
9, user terminal as claimed in claim 8 also comprises:
A split cells, be used for to satisfy when transmitting the requiring of data when data-handling capacity that described detecting unit detects each trunk subscriber terminal, according to the state of described each selected direct link, the data flow that desire is sent splits into the data flow that each selected direct link can be handled;
Wherein, a plurality of data flow that described transmitting element obtains fractionation send via each selected direct link of correspondence.
10, user terminal as claimed in claim 9, wherein, the state of described direct link comprises in the energy state of the data-handling capacity of channel conditions, trunk subscriber terminal of this direct link and trunk subscriber end cell at least.
11, the network system in a kind of mobile communication system comprises:
A receiving element is used to receive the data flow that sends via multilink;
A detecting unit is used for a plurality of data flow of this reception are detected;
A merge cells, be used for when testing result show these a plurality of data flow be do not split from the same data flow of same source user terminal the time, should a plurality of data flow merge, to obtain the data flow that signal is strengthened; With
A transmitting element is used for the data flow after merging is sent to the purpose user terminal.
12, network system as claimed in claim 11 also comprises:
A reduction unit is used for should merging by a plurality of sub data flows when testing result shows each sub data flow that these a plurality of data flow were split, to be reduced into the data flow before splitting;
Wherein, the data flow after described transmitting element will reduce sends to the purpose user terminal.
CNA2003101157967A 2003-11-28 2003-11-28 Method and apparatus for improving relay performance of mobile communication system Pending CN1622658A (en)

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PCT/IB2004/052521 WO2005053338A1 (en) 2003-11-28 2004-11-24 Method and apparatus for enhancing relaying performance of mobile communication systems

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CN101064914B (en) * 2006-04-29 2010-11-10 上海贝尔阿尔卡特股份有限公司 Method and device for joint relay in wireless communication network
CN102130750A (en) * 2010-01-14 2011-07-20 华为技术有限公司 Signal transmission method and device
CN101047423B (en) * 2006-04-10 2012-01-11 华为技术有限公司 Multi-user radio relay method and system
CN102017714B (en) * 2008-01-22 2013-12-04 黑莓有限公司 Path selection for a wireless system with relays
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