CN101873630B - Wireless communication method, system and device thereof - Google Patents

Wireless communication method, system and device thereof Download PDF

Info

Publication number
CN101873630B
CN101873630B CN 200910082699 CN200910082699A CN101873630B CN 101873630 B CN101873630 B CN 101873630B CN 200910082699 CN200910082699 CN 200910082699 CN 200910082699 A CN200910082699 A CN 200910082699A CN 101873630 B CN101873630 B CN 101873630B
Authority
CN
China
Prior art keywords
frame
sub
back haul
uplink
haul link
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 200910082699
Other languages
Chinese (zh)
Other versions
CN101873630A (en
Inventor
张文健
潘学明
沈祖康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
Original Assignee
China Academy of Telecommunications Technology CATT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Priority to CN 200910082699 priority Critical patent/CN101873630B/en
Priority to PCT/CN2010/071924 priority patent/WO2010121539A1/en
Priority to EP10766629.9A priority patent/EP2424288B1/en
Priority to US13/265,899 priority patent/US9118466B2/en
Priority to KR20117028088A priority patent/KR101412051B1/en
Priority to JP2012506322A priority patent/JP5393875B2/en
Publication of CN101873630A publication Critical patent/CN101873630A/en
Application granted granted Critical
Publication of CN101873630B publication Critical patent/CN101873630B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a wireless communication system, comprising a relay node and a base station, wherein the relay node is used for selecting an up sub-frame or a sub-frame from a frame structure of a TDD mode or an FDD mode to configure as an up sub-frame for a backhaul link from the base station to the relay node, selecting a down sub-frame or a sub-frame to configure as a down sub-frame for a backhaul link, and sending data to or receiving data from the base station by the up sub-frame and down sub-frame of the backhaul link; and the base station is used for sending data to or receiving data from the relay node by the up sub-frame and down sub-frame of the backhaul link. The invention can realize up and down data transmission of relay communication in the backhaul link.

Description

Wireless communications method, system and its apparatus
Technical field
The present invention relates to the communications field, relate in particular to wireless communications method and system.
Background technology
At existing Long Term Evolution (Long Time Evolution, LTE) in the standard, time division duplex (TimeDivision Duplex, TDD) frame structure of pattern as shown in Figure 1, each 10ms radio frames comprises two fields (half-frame), each field comprises again the subframe (subframe) of 5 1ms, and each subframe can be divided into again common time slot (slot) or 3 special time slot DwPTS of two 0.5ms, and GP and UpPTS form a special subframe (S).Wherein subframe 0 must be descending sub frame, and its synchronizing signal, non-scheduled broadcast singal (for example Master Information Block MIB, Master Information Block) are all in this subframe; Consider the switching of up-downgoing, subframe 2 must be sub-frame of uplink.
Two 5ms fields in radio frames can be two identical half frame structures as shown in Figure 1, namely are that 5ms is the frame structure in cycle, and its uplink and downlink timeslot configuration can have following several: 1DL:3UL; 2DL:2UL; 3DL:1UL.Consider in addition the utilance of Radio Resource and the compatibility of different frame structure, two 5ms fields also can be different frame structures, only have a field to have the special time slot of 1ms (S), but the special time slot flexible configuration of 5ms is the up-downgoing data slot in addition, i.e. frame structure take 10ms as the cycle, its uplink and downlink timeslot configuration can have following several: 6DL:3UL; 7DL:2UL; 8DL:1UL; 3DL:5UL.Its 7 kinds of uplink/downlink frames structure configurations are as shown in table 1 below.
Table 1
Figure G200910082699XD00011
About (the Frequency Division Duplex of Frequency Division Duplexing (FDD) in the LTE standard, FDD) frame structure of pattern as shown in Figure 2, the FDD frame structure can be used for FDD duplex and half-duplex FDD, each radio frames is 10ms, the time slot that to comprise 20 length be 0.5ms, index is 0 to 19.A subframe definition is two continuous time slots, comprises time slot 2i and 2i+1 such as subframe i.For FDD, uplink and downlink transfer adopt frequency division in each radio frames, have respectively 10 descending sub frames and 10 sub-frame of uplink to use.In half-duplex FDD operation, UE is sending and receiving simultaneously, but full duplex FDD is not limited.
At present, the introducing of via node (Relay Node, RN) is so that have three based on the Radio Link of the mobile communication system of repeater (Relay): the direct projection link (direct link) of base station-Hong subscriber equipment (eNB-macro UE); The back haul link (backhaullink) of base station-via node (eNB-RN); And the access link (access link) of via node-trunk subscriber equipment (RN-relay UE).Therefore consider the signal interference-limited of radio communication, three links need to use the Radio Resource of quadrature.Because the transceiver of via node is the TDD mode of operation, back haul link is to take different time slots in the tdd frame structure with access link, but direct projection link and back haul link are can be coexistent, as long as its running time-frequency resource quadrature.
Yet, only defined the transmission frame-form pattern to the direct projection link of UE and RN to the access link of UE, the i.e. frame structure of above-mentioned tdd mode and fdd mode about eNB in present Long Term Evolution (Long Time Evolution, the LTE) standard.Therefore, need to propose the communication to the RN back haul link about eNB, to solve the uplink and downlink transfer of data of mobile communication system on back haul link based on Relay.
Summary of the invention
Purpose of the present invention is intended to one of solve the aforementioned problems in the prior at least.
For this reason, embodiments of the invention propose a kind of wireless communications method and system.
According to an aspect of the present invention, the embodiment of the invention provides a kind of wireless communications method, said method comprising the steps of: via node RN selects at least one sub-frame of uplink to be configured to described RN to the sub-frame of uplink of the back haul link of base station from the frame structure of TDD pattern, and selects at least one descending sub frame to be configured to the descending sub frame of described back haul link; Described RN sends data by the sub-frame of uplink of described back haul link to described base station, and receives the data that described base station sends by the descending sub frame of described back haul link; Described base station receives the data that described RN sends by the sub-frame of uplink of described back haul link, and sends data by the descending sub frame of described back haul link to described RN.
The further embodiment according to the present invention, the descending sub frame balanced configuration of the sub-frame of uplink of described back haul link and described back haul link.The quantity of the descending sub frame of described back haul link can equal the quantity of the sub-frame of uplink of described back haul link, and the sub-frame of uplink of the descending sub frame of described back haul link and back haul link disposes in pairs according to mixed automatic retransfer request HARQ timing relationship.Preferably, the ratio of the descending sub frame quantity of described back haul link and the sub-frame of uplink quantity of described back haul link and is used for via node and approaches to the descending sub frame quantity of the access link of subscriber equipment and the ratio of sub-frame of uplink quantity in the frame structure of described tdd mode.
The further embodiment according to the present invention, the sub-frame of uplink of described back haul link and the descending sub frame of described back haul link can asymmetricly dispose.Preferably, the quantity of the descending sub frame of described back haul link is greater than the quantity of the sub-frame of uplink of described back haul link, and some descending sub frames of the sub-frame of uplink of wherein said back haul link and back haul link dispose in pairs according to the HARQ timing relationship; The ratio of the descending sub frame quantity of described back haul link and the sub-frame of uplink quantity of described back haul link and is used for via node and approaches to the descending sub frame quantity of the access link of subscriber equipment and the ratio of sub-frame of uplink quantity in the frame structure of described tdd mode.
The further embodiment according to the present invention, the sub-frame of uplink that is used for confirming/denying the ACK/NACK feedback that described RN is corresponding according to the descending sub frame of HARQ timing relationship and back haul link disposes the sub-frame of uplink of described back haul link.
The further embodiment according to the present invention, the sub-frame of uplink of described back haul link and descending sub frame preferentially are configured in respectively on a plurality of continuous sub-frame of uplink and descending sub frame of via node frame structure, and the sub-frame of uplink number that is used for back haul link in a radio frames is less than the sub-frame of uplink number in this radio frames.
The further embodiment according to the present invention, the descending sub frame of described selection preferably do not comprise the subframe for synchronous signal transmission and/or call.
According to a further aspect in the invention, embodiments of the invention propose a kind of wireless communications method, said method comprising the steps of: via node RN from the frame structure of FDD pattern, select at least one sub-frame configuration be described RN to the sub-frame of uplink of the back haul link of described base station, and to select at least one sub-frame configuration be the descending sub frame of described back haul link; Described RN sends data by the sub-frame of uplink of described back haul link to described base station, and receives the data that described base station sends by the descending sub frame of described back haul link; Described base station receives the data that described RN sends by the sub-frame of uplink of described back haul link, and sends data by the descending sub frame of described back haul link to described RN.
The further embodiment according to the present invention, the sub-frame of uplink of described back haul link and the descending sub frame of described back haul link are balanced configuration.The descending sub frame quantity that can dispose described back haul link equals the sub-frame of uplink quantity of described back haul link, and the sub-frame of uplink of the descending sub frame of described back haul link and back haul link disposes in pairs according to the HARQ timing relationship.Preferred described sub-frame of uplink respectively and the time-delay between the descending sub frame of paired configuration be 3 subframe lengths.
The further embodiment according to the present invention, the sub-frame of uplink of described back haul link and the descending sub frame of described back haul link are asymmetric configuration.The descending sub frame quantity of preferred described back haul link is greater than the sub-frame of uplink quantity of described back haul link, and some descending sub frames of the sub-frame of uplink of described back haul link and back haul link dispose in pairs according to the HARQ timing relationship.The descending sub frame of preferred a plurality of described back haul links is feedback acknowledgment/deny ACK/NACK on the sub-frame of uplink of a described back haul link.Time-delay in the descending sub frame of described a plurality of back haul links between last sub-frame of uplink of the sub-frame of uplink of last descending sub frame and described a plurality of back haul links is 3 subframe lengths.
The sub-frame of uplink of described back haul link and descending sub frame preferentially are configured in respectively on a plurality of continuous sub-frame of uplink and descending sub frame of via node frame structure, and the sub-frame of uplink number that is used for back haul link in a radio frames is less than the sub-frame of uplink number in this radio frames.
The further embodiment according to the present invention, the described subframe that described RN selection is configured to described downlink subframes in return link does not preferably comprise the subframe for synchronous signal transmission and/or call.
The further embodiment according to the present invention, the sub-frame of uplink of a plurality of back haul links and descending sub frame preferentially are configured in respectively on a plurality of continuous sub-frame of uplink and descending sub frame, and in a radio frames, the sub-frame of uplink number of back haul link is less than the number of sub-frame of uplink in the radio frames.
In accordance with a further aspect of the present invention, embodiments of the invention propose a kind of wireless communication system, and described system comprises via node RN and base station.Described RN selects at least one sub-frame of uplink to be configured to described RN to the sub-frame of uplink of the back haul link of described base station from the frame structure of TDD pattern, and selects at least one descending sub frame to be configured to the descending sub frame of described back haul link; Sub-frame of uplink by described back haul link sends data to described base station; And the data that receive the transmission of described base station by the descending sub frame of described back haul link.Described base station, the descending sub frame by described back haul link sends data to described RN; And the data that receive described RN transmission by the sub-frame of uplink of described back haul link.
The further embodiment according to the present invention, described RN balanced configuration or the sub-frame of uplink of the described back haul link of asymmetric configuration and the descending sub frame of described back haul link.And, described RN disposes the ratio of the sub-frame of uplink quantity of the descending sub frame quantity of described back haul link and described back haul link, and is used for via node in the frame structure of described tdd mode and approaches to the descending sub frame quantity of the access link of subscriber equipment and the ratio of sub-frame of uplink quantity.In balanced configuration, the quantity that described RN disposes the descending sub frame of described back haul link equals the quantity of the sub-frame of uplink of described back haul link, and the sub-frame of uplink of the descending sub frame of described back haul link and back haul link disposes in pairs according to mixed automatic retransfer request HARQ timing relationship.When asymmetric configuration, the quantity of the descending sub frame of the described back haul link of described RN preferred disposition is greater than the quantity of the sub-frame of uplink of described back haul link, and some descending sub frames of the sub-frame of uplink of described back haul link and back haul link dispose in pairs according to the HARQ timing relationship.
The further embodiment according to the present invention, RN according to the descending sub frame of HARQ timing relationship and back haul link corresponding be used for the sub-frame of uplink that the ACK/NACK feedback is confirmed/denied to access link, dispose the sub-frame of uplink of described back haul link.
The further embodiment according to the present invention, the described descending sub frame that described RN selects does not preferably comprise the subframe for synchronous signal transmission and/or call.
The further embodiment according to the present invention, sub-frame of uplink and the descending sub frame of a plurality of back haul links of described RN configuration preferentially are configured in respectively on a plurality of continuous sub-frame of uplink and descending sub frame, and in a radio frames, the sub-frame of uplink number of the back haul link of RN configuration is less than the number of sub-frame of uplink in the radio frames.
According to another aspect of the invention, embodiments of the invention propose a kind of wireless communication system, and described system comprises via node RN and base station.Described RN, from the frame structure of time division duplex fdd mode, select at least one sub-frame configuration be described RN to the sub-frame of uplink of the back haul link of described base station, and to select at least one sub-frame configuration be the descending sub frame of described back haul link; Sub-frame of uplink by described back haul link sends data to described base station; And the data that receive the transmission of described base station by the descending sub frame of described back haul link.Described base station, the descending sub frame by described back haul link sends data to described RN; And the data that receive described RN transmission by the sub-frame of uplink of described back haul link.
The further embodiment according to the present invention, described RN claims to dispose the sub-frame of uplink of described back haul link and the descending sub frame of described back haul link, the descending sub frame quantity that disposes described back haul link equals the sub-frame of uplink quantity of described back haul link, and the sub-frame of uplink of the descending sub frame of described back haul link and back haul link disposes in pairs according to the HARQ timing relationship.Described sub-frame of uplink respectively and the time-delay between the descending sub frame of paired configuration be preferably 3 subframe lengths.
The further embodiment according to the present invention, the sub-frame of uplink of the described back haul link of the asymmetric configuration of described RN and the descending sub frame of described back haul link.The descending sub frame quantity of the described back haul link of RN preferred disposition is greater than the sub-frame of uplink quantity of described back haul link, and some descending sub frames of the sub-frame of uplink of described back haul link and back haul link dispose in pairs according to the HARQ timing relationship.The descending sub frame that described RN disposes a plurality of described back haul links is feedback acknowledgment/deny ACK/NACK on the sub-frame of uplink of a described back haul link.Predetermined time-delay in the descending sub frame of described a plurality of back haul links between last sub-frame of uplink of the sub-frame of uplink of last descending sub frame and described a plurality of back haul links is 3 subframe lengths.
The further embodiment according to the present invention, the described subframe that described RN selects does not comprise the subframe for synchronous signal transmission and/or call.
The further embodiment according to the present invention, the sub-frame of uplink of a plurality of back haul links of RN and descending sub frame preferentially are configured in respectively on a plurality of continuous sub-frame of uplink and descending sub frame, and in a radio frames, the sub-frame of uplink number of the back haul link of RN configuration is less than the number of sub-frame of uplink in the radio frames.
According to another aspect of the invention, embodiments of the invention propose a kind of via node, comprise sub-frame of uplink dispensing unit, descending sub frame dispensing unit, transmitting element and receiving element.Described sub-frame of uplink dispensing unit, selecting at least one sub-frame of uplink or select at least one sub-frame configuration from the frame structure of TDD pattern from the frame structure of FDD pattern is that described via node is to the sub-frame of uplink of the back haul link of base station; Described descending sub frame dispensing unit, selecting at least one descending sub frame or select at least one sub-frame configuration from the frame structure of described tdd mode from the frame structure of described fdd mode is that described via node is to the descending sub frame of the back haul link of base station; Described transmitting element, the sub-frame of uplink by described back haul link sends data to the base station; Described receiving element, the descending sub frame by described back haul link receives the data that the base station sends.
According to a further aspect in the invention, embodiments of the invention propose a kind of base station, comprise receiving element and transmitting element.Described receiving element, receive via node by the data of via node to the sub-frame of uplink transmission of the back haul link of base station, the sub-frame of uplink of wherein said back haul link is selected at least one sub-frame of uplink by via node or select at least one sub-frame configuration from the frame structure of FDD pattern from the frame structure of TDD pattern; Described transmitting element, descending sub frame by back haul link sends data to via node, and the descending sub frame of wherein said back haul link is selected at least one descending sub frame by via node or select at least one sub-frame configuration from the frame structure of FDD pattern from the frame structure of TDD pattern.
The mobile communication system that the present invention is based on via node has proposed the radio communication system for the back haul link between via node RN and the base station, thereby can realize that the Relay communication system is in the uplink and downlink transfer of data of back haul link.
In addition, under tdd mode, the present invention is by the symmetrical or upper and lower sub-frame configuration of asymmetric back haul link, avoids or reduces as much as possible impact on the mixed automatic retransfer request timing relationship of access link.Uplink and downlink sub-frame number ratio by the configuration back haul link approaches with access link uplink and downlink sub-frame number ratio, can farthest reduce the waste of transfer of data.
Under fdd mode, the quantity of the present invention by the descending sub frame of configuration back haul link can affect the HARQ timing relationship on the access link greater than the quantity of the sub-frame of uplink of back haul link with minimizing.By the descending sub frame feeding back ACK/NACK on the sub-frame of uplink of a back haul link that disposes a plurality of back haul links, can saving resource.
The aspect that the present invention adds and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the frame structure schematic diagram of time division duplex (TDD) pattern in the existing LTE standard;
Fig. 2 is the frame structure schematic diagram of Frequency Division Duplexing (FDD) (FDD) pattern in the existing LTE standard;
Fig. 3 is the block diagram of wireless communication system of the present invention;
Fig. 4 is that the present invention utilizes the MBSFN subframe to carry out the schematic diagram of back haul link downlink transfer;
Fig. 5 (1) is the repeated link frame structure embodiment schematic diagram of the first configuration of the present invention under the tdd frame tactic pattern to Fig. 5 (5);
Fig. 6 (1) is to the repeated link frame structure embodiment schematic diagram of Fig. 6 (18) for the second configuration under the tdd frame tactic pattern of the present invention;
Fig. 7 (1) is to the repeated link frame structure embodiment schematic diagram of Fig. 7 (7) for the third configuration under the tdd frame tactic pattern of the present invention;
Fig. 8 (1) is to the repeated link frame structure embodiment schematic diagram of Fig. 8 (15) for the 4th kind of configuration under the tdd frame tactic pattern of the present invention;
Fig. 9 is the repeated link frame structure embodiment schematic diagram of the 5th kind of configuration under the tdd frame tactic pattern of the present invention;
Figure 10 is the repeated link frame structure embodiment schematic diagram of symmetrical subframe under the FDD frame structure pattern of the present invention;
Figure 11 is the repeated link frame structure embodiment schematic diagram of asymmetric subframe under the FDD frame structure pattern of the present invention;
Figure 12 is the via node of first embodiment of the invention and the wireless communications method flow chart between the base station; And
Figure 13 is the via node of second embodiment of the invention and the wireless communications method flow chart between the base station.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein identical or similar label represents identical or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
With reference now to Fig. 3,, the figure illustrates the block diagram of wireless communication system of the present invention.
Wireless communication system comprises base station (eNB) 10 and via node (RN) 20, wherein eNB 10 comprises receiving element 12 and transmitting element 14, and RN 20 comprises sub-frame of uplink dispensing unit 24, descending sub frame dispensing unit 28, transmitting element 22 and receiving element 28.
Frame structure for time division duplex (TDD) pattern, sub-frame of uplink dispensing unit 24 is used for from the frame structure of as shown in Figure 1 time division duplex (TDD) pattern, select at least one sub-frame of uplink to be configured to the sub-frame of uplink of the back haul link (backhaul link) of eNB 10 to RN 20 (eNB-RN), descending sub frame dispensing unit 28 selects at least one descending sub frame to be configured to descending sub frame for back haul link from the frame structure of described tdd mode.
Certainly, except selecting as the subframe the uplink and downlink subframe of back haul link, remaining other subframes still keep its original uplink and downlink sub-frame configuration relation in the tdd mode frame structure, namely are used for via node to original sub-frame configuration of the access link (access link) of trunk subscriber equipment (RN-relay UE).
Frame structure for Frequency Division Duplexing (FDD) (FDD) pattern, it is the sub-frame of uplink of back haul link that sub-frame of uplink dispensing unit 24 is used for selecting at least one sub-frame configuration from the frame structure of fdd mode, descending sub frame dispensing unit 28 is selected the sub-frame configuration of predetermined quantity from the frame structure of described fdd mode be the descending sub frame of back haul link, wherein has between the described sub-frame of uplink of configuration and the corresponding descending sub frame and be scheduled to delay time.22 sub-frame of uplink by the back haul link of sub-frame of uplink dispensing unit 24 configurations of transmitting element send data to eNB 10, and 26 descending sub frames by the back haul link of descending sub frame dispensing unit 28 configurations of receiving element receive the data that eNB 10 sends.
For eNB 10 ends, its receiving element 12 receives RN 20 by the data of the sub-frame of uplink transmission of back haul link, and transmitting element 14 sends data by the descending sub frame of back haul link to RN 20.
Below, will respectively in conjunction with tdd mode frame structure and fdd mode frame structure, make detailed description to the sub-frame of uplink dispensing unit 24 of repeated link of the present invention and the specific works of descending sub frame dispensing unit 28.
At first, the frame structure of repeated link under the tdd mode frame structure is configured is described.
Shown in the table 1 of background technology, the frame structure of existing TDD pattern has 7 kinds of different uplink and downlink frame structure configurations.
Because tdd mode subframe { #0, #1, #5, the #6} shown in the table 1, respectively corresponding subframe D, S, D, S are used for synchronous signal transmission and/or call (paging), therefore, preferably, the descending sub frame that is used for back haul link of the second dispensing unit 14 selections does not comprise these subframes.
7 kinds of configurations for the tdd frame structure, do not comprising that preferably subframe is { under the prerequisite of #0, #1, #5, #6}, because the uplink and downlink number of subframes of configuration 0 and configuration 5 is limited, as can be seen from Table 1, wherein dispose 0 and only remain 6 sub-frame of uplink (U), configuration 5 only exists, and therefore can not be used for the repeated link frame structure design.
The present invention will be based on preferred TDD configuration 1,2,3,4 and 6, provide respectively the frame structure allocation plan of back haul link, comprising sub-frame of uplink and the descending sub frame of balanced configuration back haul link, and the sub-frame of uplink of asymmetric configuration back haul link and descending sub frame.Hereinafter can provide detailed description after a while.
It is to be noted, the present invention is not limited to the specific embodiment of this preferred version, for example { #0, #1, #5, #6} can be used for disposing the descending sub frame as back haul link to above-mentioned subframe, corresponding, configuration 0 and configuration 5 in the table 1 also can not limited by number, can be used for the frame structure design of repeated link.
In addition, for relaying (in-band relay) in the band, the backhaul link adopts identical frequency spectrum with the access link.Because the Relay transmitter has interference to the receiver of oneself, descending backhaul link and descending access link are unsuitable for existing simultaneously on same frequency resource.Similarly, up access and up backhaul link also are unsuitable for existing simultaneously.Therefore, in order to remove better the interference that exists in the repeated link, the first dispensing unit 12 can be configured to the descending sub frame of back haul link Multicast Broadcast Single Frequency Network (Multicast Broadcast SingleFrenquency, MBSFN) subframe, mode by the MBSFN subframe is created gap (gaps) at descending access link in the transmission time, so that via node is not sending data to terminal UE from the base station during (eNB) receive data.Concrete principle is as shown in Figure 4, and in these transmission gaps, terminal comprises R8UE, can not expect to exist any Relay to send.
Now, will be on the basis of above-mentioned preferred version, respectively the frame structure allocation plan of the back haul link of sub-frame of uplink dispensing unit 24 of the present invention and descending sub frame dispensing unit 28 is provided detailed description by reference to the accompanying drawings.
Need to prove, the present invention who below shows be used for repeated link all frame structures all be via node (RN) frame structure, and wherein D represents the descending sub frame that RN is used for access (access) link, S represents the special subframe in the TDD configuration, and U represents the sub-frame of uplink that RN is used for the access link.
M and " ↓ " represent the subframe (optimally, do not comprise descending sub frame #0, #1, #5 and the #6 shown in the table 1, and be preferably the MBSFN subframe) that RN is used for the backhaul downlink transfer, and " ↓ " represents RN and receive from eNB; U and " ↑ " represent the subframe that RN is used for the backhaul uplink, and " ↑ " expression RN sends to eNB.
At first, with reference to figure 5 (1) to Fig. 5 (5), these figure show respectively the repeated link frame structure embodiment of the first configuration of the present invention (about the configuration 1 of table 1) under the tdd frame tactic pattern.
Show to Fig. 5 (3) that such as Fig. 5 (1) the uplink and downlink subframe of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul links is symmetrical.Namely, the quantity of the descending sub frame of configuration backhaul link equals the quantity of the sub-frame of uplink of backhaul link, and the sub-frame of uplink of the descending sub frame of backhaul link and backhaul link disposes in pairs according to mixed automatic retransfer request (HARQ) timing relationship.Wherein the descending backhaul subframe of Fig. 5 (1) and Fig. 5 (2) is 1: 1 with the ratio of up backhaul subframe, and descending access subframe is 5: 3 with the ratio of up access subframe; The descending backhaul subframe of Fig. 5 (3) is 2: 2 with the ratio of up backhaul subframe, and descending access subframe is 4: 2 with the ratio of up access subframe.
Preferably, the ratio of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul descending sub frame quantity and sub-frame of uplink quantity, approaching with the ratio of access descending sub frame quantity and sub-frame of uplink quantity.For example, Fig. 5 (1) and Fig. 5 (2), backhaul uplink and downlink subframe ratio are that 1, access uplink and downlink subframe ratio is about 1.7; And among Fig. 5 (3), backhaul uplink and downlink subframe ratio is 1, and access uplink and downlink subframe ratio is about 2.Therefore, among Fig. 5 (1) and Fig. 5 (2), backhaul uplink and downlink subframe ratio and access uplink and downlink subframe ratio are more approaching.Thereby compare Fig. 5 (3), the frame structure among Fig. 5 (1) and Fig. 5 (2) more can not cause the waste of data, and therefore corresponding frame design is more excellent.
Above-mentioned three kinds of configurations can not affect mixed automatic retransfer request (HybridAutomatic Repeat request, the HARQ) timing relationship of access link, and the HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard.
In addition, arrive among Fig. 5 (5) the uplink and downlink subframe of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 symmetrical arrangements backhaul links at Fig. 5 (4).Preferably, the quantity of the descending sub frame of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul links is greater than the quantity of the sub-frame of uplink of backhaul link, and some descending sub frames of the sub-frame of uplink of backhaul link and backhaul link dispose in pairs according to the HARQ timing relationship.
Show that such as Fig. 5 (4) and Fig. 5 (5) descending backhaul subframe is 2: 1 with the ratio of up backhaul subframe, descending access subframe is 4: 3 with the ratio of up access subframe.These the two kinds ascending HARQ timing relationships that dispose on the backhaul link can adopt the timing relationship of R8 standard, and descending timing relationship needs redesign, and these two kinds of configurations can not affect the HARQ timing relationship of access link.
Now, with reference to figure 6 (1) to Fig. 6 (18), these figure show respectively the repeated link frame structure embodiment of the second configuration of the present invention (about the configuration 2 of table 1) under the tdd frame tactic pattern.
Show that such as Fig. 6 (1) and Fig. 6 (2) the uplink and downlink subframe of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul links is symmetrical.Wherein, descending backhaul subframe is 1: 1 with the ratio of up backhaul subframe, and descending access subframe is 7: 1 with the ratio of up access subframe.Illustrate the timing relationship that two kinds of up-downgoing HARQ timing relationships on the configuration backhaul link can adopt the R8 standard.
In addition, arrive among Fig. 6 (18) the uplink and downlink subframe of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 symmetrical arrangements backhaul links at Fig. 6 (3).Preferably, the quantity of the descending sub frame of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul links is greater than the quantity of the sub-frame of uplink of backhaul link.
Show that to Fig. 6 (8) descending backhaul subframe is 2: 1 with the ratio of up backhaul subframe such as Fig. 6 (3), descending access subframe is 6: 1 with the ratio of up access subframe.
Up-downgoing HARQ timing relationship on the backhaul link of Fig. 6 (5) and Fig. 6 (7) can adopt the timing relationship of R8 standard; The ascending HARQ of Fig. 6 (3) and Fig. 6 (4) regularly can adopt the timing relationship of R8 standard, and descending HARQ regularly need redesign; The up-downgoing HARQ timing relationship of Fig. 6 (6) and Fig. 6 (8) all needs redesign.
Show that to Fig. 6 (16) descending backhaul subframe is 3: 1 with the ratio of up backhaul subframe such as Fig. 6 (9), descending access subframe is 5: 1 with the ratio of up access subframe.
Fig. 6 (9), Fig. 6 (11), Fig. 6 (12), Fig. 6 (13), 6 (15) and the backhaul link of Fig. 6 (16) on the ascending HARQ timing relationship can adopt the timing relationship of R8 standard, descending HARQ timing relationship needs redesign; The up-downgoing HARQ timing relationship of Fig. 6 (10) and Fig. 6 (14) all needs redesign.
Show that such as Fig. 6 (17) and Fig. 6 (18) descending backhaul subframe is 4: 1 with the ratio of up backhaul subframe, descending access subframe is 4: 1 with the ratio of up access subframe.Illustrate the timing relationship that two kinds of ascending HARQ timing relationships on the configuration backhaul link can adopt the R8 standard, descending HARQ timing relationship needs redesign.
From top about disposing Fig. 6 (1) of 2 to Fig. 6 (18) as can be known, in Fig. 6 (17) and 6 (18), sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul uplink and downlink subframe ratios (4: 1) are the most approaching with access uplink and downlink subframe ratio (4: 1); Fig. 6 (9) takes second place to 6 (16); Then be Fig. 6 (6) and 6 (8); Fig. 6 (1) and 6 (2) at last.Therefore, according to putting in order that ratio approaches, then can determine the frame structure preferred sequence that the present invention disposes.
Now, with reference to figure 7 (1) to Fig. 7 (7), these figure show respectively the repeated link frame structure embodiment of the third configuration (about the configuration 3 of table 1) of the present invention under the tdd frame tactic pattern.
For configuration 3, because the access link acknowledgement of subframe #0/deny that (ACK/NACK) feedback is at subframe #4, the ACK/NACK feedback of subframe #1, #5 and #6 is at subframe #2, in order not affect the HARQ on the access link, sub-frame of uplink dispensing unit 24 according to the descending sub frame sub-frame of uplink corresponding, that be used for the ACK/NACK feedback of backhaul link, collocating uplink backhaul adopts subframe #3, and the subframe of carrying out the ACK/NACK feedback at subframe #3 is #7 and #8.
Show to Fig. 7 (3) that such as Fig. 7 (1) the uplink and downlink subframe of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul links is symmetrical.Descending backhaul subframe is 1: 1 with the ratio of up backhaul subframe, and descending access subframe is 6: 2 with the ratio of up access subframe.For the configuration of Fig. 7 (1) and Fig. 7 (2), the descending HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard, and the ascending HARQ timing relationship needs redesign; For the configuration of Fig. 7 (3), the ascending HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard, and descending HARQ timing relationship needs redesign.These three kinds of configurations can not affect the HARQ timing relationship on the access link.
In addition, arrive among Fig. 7 (7) the uplink and downlink subframe of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 symmetrical arrangements backhaul links at Fig. 7 (4).Preferably, the quantity of the descending sub frame of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul links is greater than the quantity of the sub-frame of uplink of backhaul link.
Show that to Fig. 7 (6) descending backhaul subframe is 2: 1 with the ratio of up backhaul subframe such as Fig. 7 (4), descending access subframe is 5: 2 with the ratio of up access subframe.
For the configuration of Fig. 7 (4), the descending HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard, and the ascending HARQ timing relationship needs redesign; For the configuration of Fig. 7 (5) and Fig. 7 (6), the ascending HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard, and descending HARQ timing relationship needs redesign.These three kinds of configurations can not affect the HARQ timing relationship on the access link.
Show that such as Fig. 7 (7) descending backhaul subframe is 3: 1 with the ratio of up backhaul subframe, descending access subframe is 4: 2 with the ratio of up access subframe.For the configuration of Fig. 7 (7), the ascending HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard, and descending HARQ timing relationship needs redesign.This configuration can not affect the HARQ timing relationship on the access link.
About disposing Fig. 7 (1) of 3 to Fig. 7 (7) as can be known, Fig. 7 (4) is the most approaching with access uplink and downlink subframe ratio (5: 2) to the configuration backhaul uplink and downlink subframe ratios (2: 1) of Fig. 7 (6) from top; Fig. 7 (7) takes second place; That Fig. 7 (1) is to Fig. 7 (3) at last.Therefore, according to putting in order that ratio approaches, then can determine the frame structure preferred sequence that the present invention disposes.
Now, with reference to figure 8 (1) to Fig. 8 (15), these figure show respectively the repeated link frame structure embodiment of the third configuration (about the configuration 4 of table 1) of the present invention under the tdd frame tactic pattern.
For configuration 4, the ACK/NACK feedback position of subframe #0, #1 and #5 is all at subframe #2, the ACK/NACK feedback position of subframe #6 is at subframe #3, in order to affect the HARQ timing of access link with minimizing, the descending sub frame of sub-frame of uplink dispensing unit 24 bases and backhaul link sub-frame of uplink corresponding, that be used for the ACK/NACK feedback and sub-frame number corresponding to feedback subframe, collocating uplink backhaul subframe.Here, because the feedback of corresponding three subframes of subframe #2, and the feedback of the corresponding subframe of subframe #3, therefore in order to reduce the impact on the access performance, sub-frame of uplink dispensing unit 24 preferred disposition subframe #3 are up backhaul subframe with minimizing.
Show to Fig. 8 (4) that such as Fig. 8 (1) the uplink and downlink subframe of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul links is symmetrical.Wherein, descending backhaul subframe is 1: 1 with the ratio of up backhaul subframe, and descending access subframe is 7: 1 with the ratio of up access subframe.
For the configuration of Fig. 8 (1), the up-downgoing HARQ timing relationship on the backhaul link all needs redesign; For the configuration of Fig. 8 (2) and Fig. 8 (3), the descending HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard, and up timing relationship needs redesign; For the configuration of Fig. 8 (4), the up-downgoing HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard.
In addition, arrive among Fig. 8 (15) the uplink and downlink subframe of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 symmetrical arrangements backhaul links at Fig. 8 (5).Preferably, the quantity of the descending sub frame of sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 configuration backhaul links is greater than the quantity of the sub-frame of uplink of backhaul link.
Show that to Fig. 8 (10) descending backhaul subframe is 2: 1 with the ratio of up backhaul subframe such as Fig. 8 (5), descending access subframe is 6: 1 with the ratio of up access subframe.
The up-downgoing HARQ timing relationship of the backhaul link of Fig. 8 (5) and Fig. 8 (6) all needs redesign; The ascending HARQ timing relationship of the backhaul link of Fig. 8 (7) can adopt the timing relationship of R8 standard, and descending HARQ timing relationship needs redesign; The descending HARQ timing relationship of the backhaul link of Fig. 8 (8) can adopt the timing relationship of R8 standard, and the ascending HARQ timing relationship needs redesign; The up-downgoing timing relationship of the backhaul link of Fig. 8 (9) and Fig. 8 (10) can adopt the timing relationship of R8 standard.
Show that to Fig. 8 (14) descending backhaul subframe is 3: 1 with the ratio of up backhaul subframe such as Fig. 8 (11), descending access subframe is 5: 1 with the ratio of up access subframe.
For the configuration of Fig. 8 (11), the up-downgoing HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard; The up-downgoing HARQ of Fig. 8 (12) regularly needs redesign; The ascending HARQ of Fig. 8 (13) and Fig. 8 (14) regularly can adopt R8 standard HARQ regularly, and descending HARQ need redesign.
Show that such as Fig. 8 (15) descending backhaul subframe is 4: 1 with the ratio of up backhaul subframe, descending access subframe is 4: 1 with the ratio of up access subframe.For the configuration of Fig. 8 (15), the ascending HARQ timing relationship on the backhaul link can adopt the timing relationship of R8 standard, and descending HARQ timing relationship needs redesign.
About disposing Fig. 8 (1) of 4 to Fig. 8 (15) as can be known, the frame structure preferred sequence of sub-frame of uplink dispensing unit 24 and 28 configurations of descending sub frame dispensing unit is that Fig. 8 (15)＞Fig. 8 (11) is to Fig. 8 (14)＞Fig. 8 (5) to Fig. 8 (10)＞Fig. 8 (1) to Fig. 8 (4) from top.
Now, make an explanation for the repeated link frame structure configuration of the 5th kind of configuration of the present invention under the tdd frame tactic pattern (about the configuration 6 of table 1).
For the configuration 6 of table 1, { under the prerequisite of #0, #1, #5, #6}, only have descending sub frame #9 to can be used for the backhaul transmission, the subframe that can be used for up backhaul transmission is { #2, #3, #4, #7, #8} preferably not selecting subframe.Preferably, for do not affect on the access link HARQ regularly, can adopt and dynamically reserve up backhaul subframe take 6 radio frames as the cycle.In 6 radio frames (60ms), the selection that can be used for up backhaul transmission is as shown in table 2:
Table 2
10ms 10ms 10ms 10ms 10ms 10ms
Select 1 #2 #3 #4 #7 #8 N
Select
2 #3 #4 #7 #8 N # 2
Select 3 #4 #7 #8 N # 2 #3
Select 4 #7 #8 N # 2 #3 #4
Select 5 #8 N # 2 #3 #4 #7
Select 6 N # 2 #3 #4 #7 #8
Wherein the N representative is not used for the subframe of up backhaul transmission in the 10ms of correspondence.According to table 2, can select the up backhaul sub-frame configuration of any one or multiple mixing (but being no more than 6 kinds), descending backhaul subframe is configured to subframe #9 regularly.
Below, Fig. 9 has only provided to select 1 and the embodiment that selects the up backhaul subframe of 2 correspondences to mix.As shown in the figure, in first 10ms, configuration #2 and #3 are up backhaul subframe; Among second 10ms, configuration #3, #4 are up backhaul subframe; In the 3rd 10ms, configuration #4, #7 are up backhaul subframe; In the 4th 10ms, configuration #7, #8 are up backhaul subframe; Among the 5th 10ms, there is not the subframe for up backhaul in the configuration according to selecting 2 in this 10ms, is up backhaul subframe according to selecting 1 configuration #8 only therefore; In like manner, in the 6th 10ms, only disposing #2 is up backhaul subframe.
Now, the inking device that the frame structure of repeated link under the fdd mode frame structure is configured is described.
For fdd mode, sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 can adopt symmetrical or asymmetrical mode to dispose uplink and downlink subframe on the backhaul link.
During balanced configuration, the descending sub frame quantity of configuration backhaul link equals the sub-frame of uplink quantity of backhaul link, and the sub-frame of uplink of the descending sub frame of backhaul link and backhaul link disposes in pairs according to the HARQ timing relationship.
Figure 10 has provided the repeated link frame structure embodiment schematic diagram of symmetrical subframe under the FDD frame structure pattern.As shown in figure 10, the subframe #n of FDD, #n+k and #n+k+1 are used for the backhaul downlink transfer, and then corresponding subframe #n+k ', #n+k+k ' and #n+k+1+k ' are used for the backhaul uplink.
For fdd mode, in order farthest to reduce the performance impact to the access link, sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 dispose backhaul link sub-frame of uplink respectively and the time-delay between the descending sub frame of paired configuration is preferably 3 subframe lengths, i.e. k '=4.Certainly, the present invention is not limited to this specific embodiment, and in repeated link frame structure design of the present invention, k ' also can be for 5,6 etc. greater than 4 numerical value.
Therefore, for continuous or discrete descending backhaul subframe, there is unique up backhaul subframe corresponding with it.The descending HARQ timing relationship of this configuration can adopt the HARQ timing relationship of R8 standard.In addition, optimally, the subframe that descending sub frame dispensing unit 28 selects to be used for backhaul link downlink transfer does not comprise the subframe for synchronous signal transmission and/or call, for example subframe #0, #4, #5 and the #9 in the FDD frame structure.
The configuration that it is pointed out that Figure 10 only is illustrative purpose, and the backhaul symmetric design of FDD of the present invention is including but not limited to this specific embodiment.
Figure 11 has provided the repeated link frame structure embodiment schematic diagram of asymmetric subframe under the FDD frame structure pattern of the present invention.When adopting symmetrical arrangements, in order to affect the HARQ timing relationship on the access link with minimizing, preferred sub-frame of uplink dispensing unit 24 and descending sub frame dispensing unit 28 are configured to sub-frame of uplink quantity greater than the backhaul link with the descending sub frame quantity of backhaul link, and some descending sub frames of the sub-frame of uplink of backhaul link and backhaul link dispose in pairs according to the HARQ timing relationship.And in the descending sub frame of a plurality of backhaul links in the sub-frame of uplink of last descending sub frame and a plurality of backhaul links the time-delay between last sub-frame of uplink be 3 subframe lengths.In one embodiment, can dispose descending sub frame feeding back ACK/NACK on the sub-frame of uplink of a backhaul link of a plurality of backhaul links.
For example shown in Figure 11, a plurality of subframes of configuration FDD, for example subframe #n, #n+k, #n+k+1 are used for the backhaul downlink transfer, and then only sub-frame of uplink #n+k+1+k ' is used for the backhaul uplink.And last descending sub frame is 3 subframe lengths, i.e. k '=4 with time-delay between the corresponding sub-frame of uplink in preferred a plurality of descending sub frames.Thereby sub-frame of uplink #n+k ', the #n+k+k ' of corresponding descending backhaul subframe #n, #n+k can be left for the access link transmission, saved resource.The descending HARQ timing relationship of this configuration needs redesign.
Optimally, under the asymmetric mode, the subframe that descending sub frame dispensing unit 28 selects to be used for backhaul link downlink transfer does not comprise subframe #0, #4, #5 and the #9 for synchronous signal transmission and/or call.
The configuration that it is pointed out that Figure 11 only is illustrative purpose, and the backhaul asymmetric design of FDD of the present invention is including but not limited to this specific embodiment.
In addition, frame structure for above-mentioned tdd mode and fdd mode, on a plurality of continuous sub-frame of uplink and descending sub frame that sub-frame of uplink dispensing unit 24 of the present invention and descending sub frame dispensing unit 28 preferably is configured in respectively the via node frame structure with sub-frame of uplink and the descending sub frame of backhaul link, thereby can determine simply and easily the HARQ timing relationship, and cause equipment to switch continually.For example, among the embodiment such as Fig. 6 (3), Fig. 6 (6), Fig. 8 (11), Fig. 8 (15), be configured in continuously at backhaul link descending sub frame on the sub-frame of uplink of continuous tdd frame structure.
And, whole sub-frame of uplink in a radio frames all are configured to the backhaul link, and cause the sub-frame of uplink that is not used for ACK/NACK, 24 of sub-frame of uplink dispensing units to be configured in the interior sub-frame of uplink number of backhaul link that is used for of a radio frames less than the sub-frame of uplink number in this radio frames.
With reference now to Figure 12,, this figure is the via node RN of first embodiment of the invention and the wireless communications method flow chart between the base station.
As shown in the figure, this wireless communications method may further comprise the steps: RN selects at least one sub-frame of uplink to be configured to RN to the sub-frame of uplink of the back haul link of base station from the frame structure of TDD pattern, and selects at least one descending sub frame to be configured to the descending sub frame (step 102) of described back haul link; RN sends data (step 104) by the sub-frame of uplink of described back haul link to described base station; And RN receives the data (step 106) of described base station transmission by the descending sub frame of described back haul link.
Here, except selecting as the subframe the uplink and downlink subframe of back haul link, remaining other subframes still keep its original uplink and downlink sub-frame configuration relation in the tdd mode frame structure, namely are used for via node to original sub-frame configuration of the access link (access link) of trunk subscriber equipment (RN-relay UE).
Under the tdd mode frame structure in the wireless communications method, sub-frame of uplink and descending sub frame that can symmetrical or asymmetric configuration backhaul link.In balanced configuration, the quantity of the descending sub frame of configuration backhaul link equals the quantity of the sub-frame of uplink of backhaul link, and the sub-frame of uplink of the descending sub frame of backhaul link and backhaul link disposes in pairs according to the HARQ timing relationship.In one embodiment, in asymmetric configuration, can dispose the quantity of descending sub frame of backhaul link greater than the quantity of the sub-frame of uplink of backhaul link, some descending sub frames of the sub-frame of uplink of backhaul link and backhaul link dispose in pairs according to the HARQ timing relationship.
In addition, in order to reduce the waste that causes data, in symmetrical and asymmetrical backhaul link sub-frame configuration, the descending sub frame quantity of preferred disposition backhaul link and the ratio of sub-frame of uplink quantity are with other is used for the descending sub frame quantity of access (access) link and ratio of sub-frame of uplink quantity approaches in the frame structure of tdd mode.According to putting in order that ratio approaches, then can determine the frame structure preferred sequence that the present invention disposes.
And, in order to remove better the interference that exists in the repeated link, the descending sub frame of backhaul link can be configured to the MBSFN subframe, mode by the MBSFN subframe is created gap (gaps) at descending access link in the transmission time, so that via node is not sending data to terminal UE from the base station during (eNB) receive data.Concrete principle is as shown in Figure 4.
In addition, at the descending sub frame that is used for the backhaul link of selecting, do not comprise that preferably { #0, #1, #5, #6} namely are used for respectively the subframe of synchronous signal transmission and/or call (paging) to the tdd mode subframe shown in the table 1.
For 7 kinds of configurations of tdd frame structure, do not comprising that preferably subframe { under the prerequisite of #0, #1, #5, #6}, because the uplink and downlink number of subframes of configuration 0 and configuration 5 is limited, therefore can not be used for the repeated link frame structure design.
The RN repeated link of wireless communications method of the present invention is configured on the basis based on preferred TDD configuration 1,2,3,4 and 6, provide respectively the various allocation plan embodiment of frame structure of the via node link of RN, specifically can be with reference to structure and the respective description of figure 5-9.
Need, be pointed out that, the frame structure allocation plan of the via node link that the present invention provides is not all affecting or reduce is realized the basis that the HARQ timing relationship on the access link affects.
Therefore, on this basis, the present invention is also in conjunction with concrete configuration structure, for example the configuration 3 of table 1 and configuration 4, according to sub-frame of uplink descending sub frame, that be used for the ACK/NACK feedback of HARQ timing relationship and corresponding backhaul link, the sub-frame of uplink of the backhaul link that concrete configuration is corresponding.
Configuration 6 for table 1, preferably do not selecting subframe { under the prerequisite of #0, #1, #5, #6}, in order not affect the HARQ timing on the access link, collocation method of the present invention can adopt and dynamically reserve up backhaul subframe take 6 radio frames as the cycle, specifically can with reference to above about the explanation of the embodiment of table 2 and Fig. 9, repeat no more here.
With reference now to Figure 13,, this figure is the wireless communications method flow chart of second embodiment of the invention (under the FDD frame structure pattern).
As shown in the figure, the method may further comprise the steps: RN from the frame structure of FDD pattern, select at least one sub-frame configuration be RN to the sub-frame of uplink of the back haul link of base station, and to select at least one sub-frame configuration be the descending sub frame of described back haul link; (step 202), described RN sends data by the sub-frame of uplink of described back haul link to described base station, and receives the data that described base station sends by the descending sub frame of described back haul link; (step 204), described base station receives the data that described RN sends by the sub-frame of uplink of described back haul link, and sends data (step 206) by the descending sub frame of described back haul link to described RN.。
For fdd mode, the upper and lower sub-frame configuration of step 202 can adopt symmetrical or asymmetrical mode to dispose uplink and downlink subframe on the backhaul link.In balanced configuration, the quantity of the descending sub frame of configuration backhaul link equals the quantity of the sub-frame of uplink of backhaul link, and the sub-frame of uplink of the descending sub frame of backhaul link and backhaul link disposes in pairs according to the HARQ timing relationship.In asymmetric configuration, can dispose the quantity of descending sub frame of backhaul link greater than the quantity of the sub-frame of uplink of backhaul link, some descending sub frames of the sub-frame of uplink of backhaul link and backhaul link dispose in pairs according to the HARQ timing relationship.
In order farthest to reduce the performance impact to the access link, can dispose backhaul link sub-frame of uplink respectively and the time-delay between the descending sub frame of paired configuration is preferably 3 subframe lengths.Certainly, the present invention is not limited to this specific embodiment, in repeated link frame structure design of the present invention, also can have the subframe lengths greater than 3 between the corresponding uplink and downlink subframe of backhaul link.
When adopting symmetrical arrangements, in order to affect the HARQ timing relationship on the access link, preferably the descending sub frame quantity of backhaul link is configured to the sub-frame of uplink quantity greater than the backhaul link with minimizing.In the descending sub frame of a plurality of backhaul links in the sub-frame of uplink of last descending sub frame and a plurality of backhaul links the time-delay between last sub-frame of uplink be 3 subframe lengths.In one embodiment, can dispose descending sub frame feeding back ACK/NACK on the sub-frame of uplink of a backhaul link of a plurality of backhaul links.In this case, last descending sub frame is 3 subframe lengths with time-delay between the corresponding sub-frame of uplink in preferred a plurality of descending sub frame.Thereby remaining sub-frame of uplink can be used for access link transmission, saving resource.
Under symmetric pattern or asymmetric mode, optimally, selected subframe for backhaul link downlink transfer does not comprise subframe #0, #4, #5 and the #9 for synchronous signal transmission and/or call.
Repeated link frame structure embodiment about FDD frame structure pattern configurations of the present invention can with reference to Figure 10 and Figure 11, repeat no more here.
Equally, on a plurality of continuous sub-frame of uplink and descending sub frame that the present invention preferably is configured in respectively the via node frame structure with sub-frame of uplink and the descending sub frame of backhaul link, thereby can determine simply and easily the HARQ timing relationship, and cause equipment to switch continually.Whole sub-frame of uplink in a radio frames all are configured to the backhaul link, and cause the sub-frame of uplink that is not used for ACK/NACK, then be configured in the interior sub-frame of uplink number of backhaul link that is used for of a radio frames less than the sub-frame of uplink number in this radio frames.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment that scope of the present invention is by claims and be equal to and limit.

Claims (24)

1. a wireless communications method is characterized in that, described wireless communications method may further comprise the steps:
Via node RN selects at least one sub-frame of uplink to be configured to described RN to the sub-frame of uplink of the back haul link of base station from the frame structure of TDD pattern, and selects at least one descending sub frame to be configured to the descending sub frame of described back haul link;
Described RN sends data by the sub-frame of uplink of described back haul link to described base station, and receives the data that described base station sends by the descending sub frame of described back haul link;
Described base station receives the data that described RN sends by the sub-frame of uplink of described back haul link, and sends data by the descending sub frame of described back haul link to described RN,
Wherein, the descending sub frame balanced configuration of the sub-frame of uplink of described back haul link and described back haul link,
Wherein, the quantity of the descending sub frame of described back haul link equals the quantity of the sub-frame of uplink of described back haul link, and the sub-frame of uplink of the descending sub frame of described back haul link and back haul link disposes in pairs according to mixed automatic retransfer request HARQ timing relationship.
2. wireless communications method as claimed in claim 1 is characterized in that, described RN denies the sub-frame of uplink that NACK feeds back according to the affirmation ACK/ that is used for of the descending sub frame of HARQ timing relationship and corresponding described back haul link, disposes the sub-frame of uplink of described back haul link.
3. a wireless communications method is characterized in that, described wireless communications method may further comprise the steps:
Via node RN selects at least one sub-frame of uplink to be configured to described RN to the sub-frame of uplink of the back haul link of base station from the frame structure of TDD pattern, and selects at least one descending sub frame to be configured to the descending sub frame of described back haul link;
Described RN sends data by the sub-frame of uplink of described back haul link to described base station, and receives the data that described base station sends by the descending sub frame of described back haul link;
Described base station receives the data that described RN sends by the sub-frame of uplink of described back haul link, and sends data by the descending sub frame of described back haul link to described RN,
Wherein, the sub-frame of uplink of described back haul link and the asymmetric configuration of the descending sub frame of described back haul link,
Wherein, the quantity of the descending sub frame of described back haul link is greater than the quantity of the sub-frame of uplink of described back haul link, and some descending sub frames of the sub-frame of uplink of described back haul link and back haul link dispose in pairs according to the HARQ timing relationship.
4. wireless communications method as claimed in claim 3, it is characterized in that, the ratio of the descending sub frame quantity of described back haul link and the sub-frame of uplink quantity of described back haul link and is used for via node and approaches to the descending sub frame quantity of the access link of subscriber equipment and the ratio of sub-frame of uplink quantity in the frame structure of described tdd mode.
5. wireless communications method as claimed in claim 3, the sub-frame of uplink of described back haul link and descending sub frame are configured in respectively on a plurality of continuous sub-frame of uplink and descending sub frame of frame structure of described tdd mode, and the sub-frame of uplink number that is used for back haul link in a radio frames is less than the sub-frame of uplink number in this radio frames.
6. a wireless communications method is characterized in that, described wireless communications method may further comprise the steps:
Via node RN from the frame structure of FDD pattern, select at least one sub-frame configuration be described RN to the sub-frame of uplink of the back haul link of base station, and to select at least one sub-frame configuration be the descending sub frame of described back haul link;
Described RN sends data by the sub-frame of uplink of described back haul link to described base station, and receives the data that described base station sends by the descending sub frame of described back haul link; Described base station receives the data that described RN sends by the sub-frame of uplink of described back haul link, and sends data by the descending sub frame of described back haul link to described RN,
Wherein, the descending sub frame balanced configuration of the sub-frame of uplink of described back haul link and described back haul link,
Wherein, the descending sub frame quantity of described back haul link equals the sub-frame of uplink quantity of described back haul link, and the sub-frame of uplink of the descending sub frame of described back haul link and back haul link disposes in pairs according to the HARQ timing relationship.
7. wireless communications method as claimed in claim 6 is characterized in that, described sub-frame of uplink respectively and the time-delay between the descending sub frame of paired configuration be 3 subframe lengths.
8. wireless communications method as claimed in claim 6 is characterized in that, the descending sub frame of a plurality of described back haul links feedback acknowledgment ACK/ on the sub-frame of uplink of a described back haul link denies NACK.
9. a wireless communications method is characterized in that, described wireless communications method may further comprise the steps:
Via node RN from the frame structure of FDD pattern, select at least one sub-frame configuration be described RN to the sub-frame of uplink of the back haul link of base station, and to select at least one sub-frame configuration be the descending sub frame of described back haul link;
Described RN sends data by the sub-frame of uplink of described back haul link to described base station, and receives the data that described base station sends by the descending sub frame of described back haul link; Described base station receives the data that described RN sends by the sub-frame of uplink of described back haul link, and sends data by the descending sub frame of described back haul link to described RN,
Wherein, the sub-frame of uplink of described back haul link and the asymmetric configuration of the descending sub frame of described back haul link,
Wherein, the descending sub frame quantity of described back haul link is greater than the sub-frame of uplink quantity of described back haul link, and some descending sub frames of the sub-frame of uplink of described back haul link and back haul link dispose in pairs according to the HARQ timing relationship.
10. wireless communications method as claimed in claim 9 is characterized in that, in the descending sub frame of a plurality of back haul links in the sub-frame of uplink of last descending sub frame and described a plurality of back haul links the time-delay between last sub-frame of uplink be 3 subframe lengths.
11. wireless communications method as claimed in claim 9, the sub-frame of uplink of described back haul link and descending sub frame are configured in respectively on a plurality of continuous sub-frame of uplink and descending sub frame of frame structure of described fdd mode, and the sub-frame of uplink number that is used for back haul link in a radio frames is less than the sub-frame of uplink number in this radio frames.
12. a wireless communication system is characterized in that described wireless communication system comprises via node RN and base station,
Described RN selects at least one sub-frame of uplink to be configured to described RN to the sub-frame of uplink of the back haul link of described base station from the frame structure of TDD pattern, and selects at least one descending sub frame to be configured to the descending sub frame of described back haul link; Sub-frame of uplink by described back haul link sends data to described base station; And the data that receive the transmission of described base station by the descending sub frame of described back haul link;
Described base station, the descending sub frame by described back haul link sends data to described RN; And the sub-frame of uplink by described back haul link receives the data that described RN sends,
Wherein, the sub-frame of uplink of the described back haul link of described RN balanced configuration and the descending sub frame of described back haul link,
Wherein, the quantity that described RN disposes the descending sub frame of described back haul link equals the quantity of the sub-frame of uplink of described back haul link, and the sub-frame of uplink of the descending sub frame of described back haul link and back haul link disposes in pairs according to mixed automatic retransfer request HARQ timing relationship.
13. wireless communication system as claimed in claim 12, it is characterized in that, described RN denies the sub-frame of uplink that NACK feeds back according to the affirmation ACK/ that is used for of the descending sub frame of HARQ timing relationship and corresponding described back haul link, disposes the sub-frame of uplink of described back haul link.
14. a wireless communication system is characterized in that described wireless communication system comprises via node RN and base station,
Described RN selects at least one sub-frame of uplink to be configured to described RN to the sub-frame of uplink of the back haul link of described base station from the frame structure of TDD pattern, and selects at least one descending sub frame to be configured to the descending sub frame of described back haul link; Sub-frame of uplink by described back haul link sends data to described base station; And the data that receive the transmission of described base station by the descending sub frame of described back haul link;
Described base station, the descending sub frame by described back haul link sends data to described RN; And the sub-frame of uplink by described back haul link receives the data that described RN sends,
Wherein, the sub-frame of uplink of the described back haul link of the asymmetric configuration of described RN and the descending sub frame of described back haul link,
Wherein, described RN disposes the quantity of descending sub frame of described back haul link greater than the quantity of the sub-frame of uplink of described back haul link, and some descending sub frames of the sub-frame of uplink of described back haul link and back haul link dispose in pairs according to the HARQ timing relationship.
15. wireless communication system as claimed in claim 14, it is characterized in that, described RN disposes the ratio of the sub-frame of uplink quantity of the descending sub frame quantity of described back haul link and described back haul link, and is used for via node in the frame structure of described tdd mode and approaches to the descending sub frame quantity of the access link of subscriber equipment and the ratio of sub-frame of uplink quantity.
16. wireless communication system as claimed in claim 14, on a plurality of continuous sub-frame of uplink and descending sub frame of the frame structure that described RN is configured in respectively described tdd mode with sub-frame of uplink and the descending sub frame of described back haul link, and the sub-frame of uplink number that is used for back haul link in a radio frames is less than the sub-frame of uplink number in this radio frames.
17. a wireless communication system is characterized in that described wireless communication system comprises via node RN and base station,
Described RN, from the frame structure of FDD pattern, select at least one sub-frame configuration be described RN to the sub-frame of uplink of the back haul link of described base station, and to select at least one sub-frame configuration be the descending sub frame of described back haul link; Sub-frame of uplink by described back haul link sends data to described base station; And the data that receive the transmission of described base station by the descending sub frame of described back haul link;
Described base station, the descending sub frame by described back haul link sends data to described RN; And the sub-frame of uplink by described back haul link receives the data that described RN sends,
Wherein, the sub-frame of uplink of the described back haul link of described RN balanced configuration and the descending sub frame of described back haul link,
Wherein, the descending sub frame quantity that described RN disposes described back haul link equals the sub-frame of uplink quantity of described back haul link, and the descending sub frame of described back haul link and the sub-frame of uplink of back haul link dispose in pairs according to the HARQ timing relationship, described sub-frame of uplink respectively and the time-delay between the descending sub frame of paired configuration be 3 subframe lengths.
18. a wireless communication system is characterized in that described wireless communication system comprises via node RN and base station,
Described RN, from the frame structure of FDD pattern, select at least one sub-frame configuration be described RN to the sub-frame of uplink of the back haul link of described base station, and to select at least one sub-frame configuration be the descending sub frame of described back haul link; Sub-frame of uplink by described back haul link sends data to described base station; And the data that receive the transmission of described base station by the descending sub frame of described back haul link;
Described base station, the descending sub frame by described back haul link sends data to described RN; And the sub-frame of uplink by described back haul link receives the data that described RN sends,
Wherein, the sub-frame of uplink of the described back haul link of the asymmetric configuration of described RN and the descending sub frame of described back haul link,
Wherein, described RN disposes the descending sub frame quantity of described back haul link greater than the sub-frame of uplink quantity of described back haul link, and some descending sub frames of the sub-frame of uplink of described back haul link and back haul link dispose in pairs according to the HARQ timing relationship.
19. wireless communication system as claimed in claim 18 is characterized in that, in the descending sub frame of a plurality of back haul links in the sub-frame of uplink of last descending sub frame and described a plurality of back haul links the time-delay between last sub-frame of uplink be 3 subframe lengths.
20. a via node is characterized in that, comprises sub-frame of uplink dispensing unit, descending sub frame dispensing unit, transmitting element and receiving element,
Described sub-frame of uplink dispensing unit, selecting at least one sub-frame of uplink or select at least one sub-frame configuration from the frame structure of TDD pattern from the frame structure of FDD pattern is that described via node is to the sub-frame of uplink of the back haul link of base station;
Described descending sub frame dispensing unit, selecting at least one descending sub frame or select at least one sub-frame configuration from the frame structure of described tdd mode from the frame structure of described fdd mode is that described via node is to the descending sub frame of the back haul link of base station;
Described transmitting element, the sub-frame of uplink by described back haul link sends data to the base station;
Described receiving element, the descending sub frame by described back haul link receives the data that the base station sends,
Wherein, the descending sub frame balanced configuration of the sub-frame of uplink of described back haul link and described back haul link,
Wherein, the quantity of the descending sub frame of described back haul link equals the quantity of the sub-frame of uplink of described back haul link, and the sub-frame of uplink of the descending sub frame of described back haul link and back haul link disposes in pairs according to mixed automatic retransfer request HARQ timing relationship.
21. a via node is characterized in that, comprises sub-frame of uplink dispensing unit, descending sub frame dispensing unit, transmitting element and receiving element,
Described sub-frame of uplink dispensing unit, selecting at least one sub-frame of uplink or select at least one sub-frame configuration from the frame structure of TDD pattern from the frame structure of FDD pattern is that described via node is to the sub-frame of uplink of the back haul link of base station;
Described descending sub frame dispensing unit, selecting at least one descending sub frame or select at least one sub-frame configuration from the frame structure of described tdd mode from the frame structure of described fdd mode is that described via node is to the descending sub frame of the back haul link of base station;
Described transmitting element, the sub-frame of uplink by described back haul link sends data to the base station;
Described receiving element, the descending sub frame by described back haul link receives the data that the base station sends,
Wherein, the sub-frame of uplink of described back haul link and the asymmetric configuration of the descending sub frame of described back haul link,
Wherein, the quantity of the descending sub frame of described back haul link is greater than the quantity of the sub-frame of uplink of described back haul link, and some descending sub frames of the sub-frame of uplink of described back haul link and back haul link dispose in pairs according to the HARQ timing relationship.
22. a base station is characterized in that, comprises receiving element and transmitting element,
Described receiving element, receive via node by the data of via node to the sub-frame of uplink transmission of the back haul link of base station, the sub-frame of uplink of wherein said back haul link is selected at least one sub-frame of uplink by via node or select at least one sub-frame configuration from the frame structure of FDD pattern from the frame structure of TDD pattern;
Described transmitting element, descending sub frame by back haul link sends data to via node, the descending sub frame of wherein said back haul link is selected at least one descending sub frame by via node or select at least one sub-frame configuration from the frame structure of FDD pattern from the frame structure of TDD pattern
Wherein, the descending sub frame balanced configuration of the sub-frame of uplink of described back haul link and described back haul link,
Wherein, the quantity of the descending sub frame of described back haul link equals the quantity of the sub-frame of uplink of described back haul link, and the sub-frame of uplink of the descending sub frame of described back haul link and back haul link disposes in pairs according to mixed automatic retransfer request HARQ timing relationship.
23. a base station is characterized in that, comprises receiving element and transmitting element,
Described receiving element, receive via node by the data of via node to the sub-frame of uplink transmission of the back haul link of base station, the sub-frame of uplink of wherein said back haul link is selected at least one sub-frame of uplink by via node or select at least one sub-frame configuration from the frame structure of FDD pattern from the frame structure of TDD pattern;
Described transmitting element, descending sub frame by back haul link sends data to via node, the descending sub frame of wherein said back haul link is selected at least one descending sub frame by via node or select at least one sub-frame configuration from the frame structure of FDD pattern from the frame structure of TDD pattern
Wherein, the sub-frame of uplink of described back haul link and the asymmetric configuration of the descending sub frame of described back haul link,
Wherein, the quantity of the descending sub frame of described back haul link is greater than the quantity of the sub-frame of uplink of described back haul link, and some descending sub frames of the sub-frame of uplink of described back haul link and back haul link dispose in pairs according to the HARQ timing relationship.
24. such as each described wireless communications method in the claim 1,3,6,9 or such as each described wireless communication system in the claim 12,14,17,18 or such as claim 20 or 21 described via nodes or such as claim 22 or 23 described base stations, it is characterized in that the descending sub frame of described selection does not comprise the subframe for synchronous signal transmission and/or call.
CN 200910082699 2009-04-24 2009-04-24 Wireless communication method, system and device thereof Active CN101873630B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN 200910082699 CN101873630B (en) 2009-04-24 2009-04-24 Wireless communication method, system and device thereof
PCT/CN2010/071924 WO2010121539A1 (en) 2009-04-24 2010-04-20 Method, device and system for backhaul link communication in tdd system
EP10766629.9A EP2424288B1 (en) 2009-04-24 2010-04-20 Method, device and system for backhaul link communication in tdd system
US13/265,899 US9118466B2 (en) 2009-04-24 2010-04-20 Method, device and system for backhaul link communication in a TDD system
KR20117028088A KR101412051B1 (en) 2009-04-24 2010-04-20 Method, device and system for backhaul link communication in tdd system
JP2012506322A JP5393875B2 (en) 2009-04-24 2010-04-20 TDD system backhaul link communication method, device and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200910082699 CN101873630B (en) 2009-04-24 2009-04-24 Wireless communication method, system and device thereof

Publications (2)

Publication Number Publication Date
CN101873630A CN101873630A (en) 2010-10-27
CN101873630B true CN101873630B (en) 2013-04-03

Family

ID=42998239

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200910082699 Active CN101873630B (en) 2009-04-24 2009-04-24 Wireless communication method, system and device thereof

Country Status (1)

Country Link
CN (1) CN101873630B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101997598A (en) * 2009-08-21 2011-03-30 富士通株式会社 Relay node, time division duplex communication system and communication method
CN102468904B (en) * 2010-11-05 2015-06-03 中兴通讯股份有限公司 Backhaul subframe allocation indicating method and system
CN102571189B (en) * 2010-12-07 2015-10-28 中兴通讯股份有限公司 The data processing method that backhaul link subframe configuration switches and device
CN102843701B (en) * 2011-06-21 2018-02-13 爱立信(中国)通信有限公司 Relaying dispositions method and equipment in time division duplex communication network
CN103138897A (en) * 2011-11-25 2013-06-05 中兴通讯股份有限公司 Acknowledgement information feedback method and system
US8958331B2 (en) 2012-07-02 2015-02-17 Intel Corporation HARQ-ACK handling for unintended downlink sub-frames
US10608693B2 (en) 2015-05-05 2020-03-31 Huawei Technologies Co., Ltd. Base station, small cell, and control channel configuration method
CN106686731B (en) * 2015-11-06 2020-03-24 电信科学技术研究院 Data transmission method and device in half-duplex FDD
CN107294685B (en) * 2016-04-01 2020-05-12 上海诺基亚贝尔股份有限公司 Communication method when TTI length of UL transmission and TTI length of DL transmission are asymmetric
US10833832B2 (en) 2016-06-22 2020-11-10 Intel Corporation Communication device and a method for full duplex scheduling
JP7005360B2 (en) * 2018-01-25 2022-01-21 株式会社東芝 Communication relay device, control method, and program

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1929334A (en) * 2005-09-09 2007-03-14 华为技术有限公司 Wireless signal relay processing method and device
CN101064555A (en) * 2006-04-29 2007-10-31 上海贝尔阿尔卡特股份有限公司 Frame structure, frame processing method and equipment and system for multi-hop access network
CN101141171A (en) * 2006-09-08 2008-03-12 华为技术有限公司 Radio communication device, system and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1929334A (en) * 2005-09-09 2007-03-14 华为技术有限公司 Wireless signal relay processing method and device
CN101064555A (en) * 2006-04-29 2007-10-31 上海贝尔阿尔卡特股份有限公司 Frame structure, frame processing method and equipment and system for multi-hop access network
CN101141171A (en) * 2006-09-08 2008-03-12 华为技术有限公司 Radio communication device, system and method

Also Published As

Publication number Publication date
CN101873630A (en) 2010-10-27

Similar Documents

Publication Publication Date Title
CN101873630B (en) Wireless communication method, system and device thereof
CN103368713B (en) The communication means and device of device-to-device
CN101841846B (en) Uplink data transmitting method, system and device in TDD (Time Division Duplex) mode based on relay
US9203501B2 (en) Relay transmission method and apparatus
CN101998432B (en) Method, equipment and system for configuring frame structure of backhaul link
CN101741452B (en) Relay transmission method and network node
CN101925118B (en) Method, device and system for avoiding conflicts of interface transmission
CN103069899A (en) Configuring an uplink and downlink splitting pattern for device-to-device communication under a cellular network
CN101814944B (en) Data transmission method, system and device
CN101888661B (en) Wireless communication method, system and device
WO2011098844A1 (en) Effective ways to use a special subframe for a time division duplex relay backhaul
CN102045779A (en) Relay method, equipment and system
CN102916791A (en) PUSCH (physical uplink shared channel) transmission method and mobile terminal in dynamic TDD (time division duplex) system for supporting carrier aggregation
CN105340346A (en) Base station apparatus, mobile station apparatus, and communication method
CN101784125A (en) Data transmission method and system in TDD mode
CN101415233B (en) Method and apparatus for resource distribution
CN101902820B (en) Method and system for transmitting uplink data and device
CN101426269B (en) Pilot resource distribution method, system and equipment
CN102111214A (en) Base station, relay node as well as notification method and system of configuration information of relay subframe
EP3288334B1 (en) Data transmission method and apparatus
CN103078718B (en) The method and apparatus of relay transmission
CN101814942B (en) Method, system and device for determining transmission time period and data transmission
CN101784124B (en) Method and equipment for adding protection intervals in TDD mode
CN102055579A (en) Wireless communication system and relay station and wireless communication device thereof
CN102857329B (en) Method, system and apparatus for determining transmission time period and data transmission

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY

Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD.

Effective date: 20110414

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING

TA01 Transfer of patent application right

Effective date of registration: 20110414

Address after: 100191 Haidian District, Xueyuan Road, No. 40,

Applicant after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Address before: 100083 Haidian District, Xueyuan Road, No. 29,

Applicant before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd.

C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road

Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road

Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210609

Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing

Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd.

Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road

Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY