CN102347815A - Physical uplink control channel (PUCCH) sending method and system for relay network - Google Patents
Physical uplink control channel (PUCCH) sending method and system for relay network Download PDFInfo
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Abstract
The invention discloses a physical uplink control channel (PUCCH) sending method and a system for a relay network. The method comprises the following steps that: PUCCH completion position information is fixedly configured onto a relay station, or network side equipment of an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is used for telling the completion position information of the PUCCH to the relay station, and the relay station adopts a corresponding PUCCH structure for executing the carrying and sending of the uplink control information (UCI) according to the PUCCH completion position information. Through the method and the system, different relay stations in a cell can realize the multiplexing when sending PUCCH on the uplink return sub frame, so the resources are saved, and the system performance is improved.
Description
Technical field
The present invention relates to the relaying technique of moving communicating field, relate in particular to a kind of Physical Uplink Control Channel (PUCCH) sending method and system of junction network.
Background technology
Relaying technique has caused concern more and more widely as a kind of emerging technology, is regarded as the key technology of ultra 3 g mobile communication system/the 4th third-generation mobile communication system (B3G/4G, Beyond 3G/4G).Because following radio communication or cellular system require to increase coverage, support the higher rate transmission, this has proposed new challenge to wireless communication technology.Simultaneously, the cost issues of system building and maintenance is more outstanding.Along with the increase of transmission rate and communication distance, it is outstanding that the energy consumption issues of battery also becomes, and following radio communication will adopt higher frequency, and the pathloss attenuation that causes thus is more serious.Through relaying technique, can traditional one hop link be divided into a plurality of multi-hop links, because reduced distances, this will greatly reduce path loss, help to improve transmission quality, enlarge communication range, thereby quicker better service will be provided for the user.
As shown in Figure 1; In junction network; User terminal and the link between relay station that relay station is participated in service are called access link (Access Link); Link between relay station and base station is called back haul link (Backhaul Link), and user terminal and the link between the base station that service is participated in the base station are called the link that direct transfers (Direct Link).
In Long Term Evolution (LTE, Long Term Evolution) and evolution communication systems thereof, the standard time length of 1 sub-frame of uplink is T
Subframe=30720T
s=1ms, wherein, T
sThe expression time slot.If in subframe, adopt general cyclic prefix (CP; Cyclic Prefix); Then 1 sub-frame of uplink comprises 14 single carrier-frequency division multiple accesss (SC-FDMA, Single Carrier-Frequency Division Multiple Access) symbol, promptly from symbol 0 to symbol 13; Interior, the length of SC-FDMA symbol 0 and symbol 7 is 2208T with the CP length computation
s, the length of other symbols is 2192T
sIf in subframe, adopt expansion CP, then 1 sub-frame of uplink comprises 12 SC-FDMA symbols, and promptly from symbol 0 to symbol 11, interior, the length of each SC-FDMA symbol is 2192T with the CP length computation
s, wherein
Millisecond.
For relaying (In-band relaying) in the band, back haul link, access link and the link that direct transfers all are operated on the identical frequency spectrum.Generally speaking, disturb,, can not carry out descending and up transmission simultaneously on regulation back haul link and the access link, and must stagger in time for relaying in the band for fear of producing between the receiving terminal of relay station self and the transmitting terminal.Therefore; For relay station; Relay sub-frame is divided into the backhaul subframe and inserts subframe, and the back haul link of relay station is descending to carry out on descending and up backhaul subframe respectively with uplink, and access link is descending to carry out on descending and up access subframe respectively with uplink.The backhaul subframe is identical with the CP configuration that inserts subframe.
In addition; Because relay station in the radio frequency conversion of carrying out between downlink and the descending reception, when the radio frequency between perhaps up emission and the up reception is changed, needs the protection interval of certain hour length; And this transfer process can't be accomplished in CP; Therefore, the protection that is used for the conversion of relay station radio frequency will take the resource of a part of back haul link or access link etc. at interval, causes the wasting of resources.For the utilance of the high backhaul resources that guarantees to try one's best, present common method is the transmission range of restriction backhaul subframe, and the timing of adjustment access link and protection configuration at interval, thereby realizes the minimizing of the wasting of resources.Concrete, different backhaul subframe transmission range restricted version, access link regularly adjusted degree and protection configuration at interval, is embodied in the different timing scenes.Regularly be meant start time or terminal point that network node is launched or received here.At present, the possible scene of the up timing of relay station has 3: up scene 2b, improved up scene 2a and improved up scene 4.
For the up timing of relay station, be located on the up backhaul subframe, relay station begins to carry out the up emission up-to symbol of back haul link q from SC-FDMA symbol p and finishes.Being described below the up timing scene of relay station so:
Up scene 2b: on up backhaul subframe, relay station from SC-FDMA symbol p=0 begin to carry out the up emission of back haul link up to last symbol of this subframe (when adopting common CP, q=13; When adopting expansion CP; Q=11) finish; Emission constant time lag a period of time (up fixed delay) of up back haul link is regularly compared in the reception of the up access link of relay station this moment; The protection that is used for the radio frequency conversion takies last symbol of up access subframe at interval and (when the employing common CP, is symbol 13; When adopting expansion CP, be symbol 11).
Improved up scene 2a: on up backhaul subframe, relay station from SC-FDMA symbol p=0 begin to carry out the up emission of back haul link up to last symbol of this subframe (when adopting common CP, q=13; When adopting expansion CP; Q=11) finish; The emission that adjacent up back haul link is regularly compared in the reception of the up access link of relay station this moment regularly shifts to an earlier date a period of time (special time delay), and the protection that is used for the radio frequency conversion takies the protection part at interval of the special subframe under the TDD mode at interval.Improved up scene 2a is only applicable to TDD mode.
Improved up scene 4: on up backhaul subframe; Relay station begins to carry out the up emission up-to symbol of back haul link q ∈ { 12 from SC-FDMA symbol p=0; 13} (when adopting common CP) or q ∈ { 10; 11} (when adopting expansion CP) finishes (depending on the radio frequency conversion time delay of relay station to the propagation delay and the relay station of base station); The reception of the up access link of relay station this moment is regularly regularly synchronous with the up reception of base station, and the protection that is used for the radio frequency conversion takies last symbol of up access subframe and up backhaul subframe at interval and (when adopting common CP, is respectively the symbol 13 of up access subframe and up backhaul subframe; When adopting expansion CP, be respectively the symbol 11 of up access subframe and up backhaul subframe), last symbol that perhaps only takies up access subframe (when adopting common CP, is symbol 13; When adopting expansion CP, be symbol 11).
As stated; In improved up scene 4; Backhaul transport scope in the up backhaul subframe depends on the radio frequency conversion time delay of propagation delay and relay station between relay station and base station, and according to the propagation delay of varying level, improved up scene 4 can be divided into two sub-scenes again.For example, as the about 0～624T of propagation delay
sThe time, corresponding sub-scenario A; When propagation delay is about 624T
s～1568T
s(employing common CP) or 624T
s～1936T
sWhen (adopting expansion CP), corresponding sub-scenario B.
In the above-mentioned different up timing scene, owing to have different timing properties, the spread scope of the up backhaul subframe of relay station is different, shown in the table 1 specific as follows,
Table 1
Clearly, when relay station adopted different timing scenes, the obtainable up backhaul subframe transmission range of relay station institute was different.When adopting up scene 2b; Perhaps improved up scene 2a; During the bigger sub-scene of the propagation delay of perhaps improved up scene 4, the transmission range of last back haul link is 13 (during the configuration common CP), totally 14 symbols from symbol 0 to symbol; Perhaps (during configuration expansion CP), totally 12 symbols from symbol 0 to symbol 11; And when the less sub-scene of the propagation delay that adopts improved up scene 4, the transmission range of up back haul link be 12 (during the configuration common CP) from symbol 0 to symbol, totally 13 symbols, perhaps 10 (when CP are expanded in configuration) from symbol 0 to symbol, totally 11 symbols.
It is thus clear that, adopt the relay station of the sub-scenario A in the improved up scene 4 to compare with the relay station that adopts other timing scenes, the employable SC-FDMA symbol of up backhaul subframe institute is different.As shown in Figure 2, suppose that up backhaul subframe adopts common CP, and adjacent after the up backhaul subframe be up access subframe, the propagation delay between relay station RN1 and base station is less (for example less than 624T
s), adopting the sub-scenario A of improved up scene 4, the operable back haul link resource of RN1 this moment comprises SC-FDMA symbol 0 up-to symbol 12, symbol 13 can't be used for up backhaul transport; And the big (1568T for example of the propagation delay between relay station RN2 and base station
s), adopt the sub-scenario B of improved up scene 4, this moment, RN2 can use SC-FDMA symbols all on the backhaul subframe, comprised symbol 0 up-to symbol 13.The up back haul link resource that is RN1 has been lacked a SC-FDMA symbol 13 than RN2.
Present research conclusion is thought; When relay station sends upstream physical layer control signaling on up back haul link, need on back haul link, continue to use existing Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel) structure fully; If particularly PUCCH is used for the ascending control information (UCI of bear format 1/1a/1b; Uplink Control Information), when having the up backhaul sub-frame resources of 14 or 12 symbols in the relaying backhaul subframe, continue to use normal PUCCH structure; Like Fig. 3 (a), dash area is represented PUCCH among the figure; When having the up backhaul sub-frame resources of 13 or 11 symbols in the relaying backhaul subframe, continue to use the PUCCH structure of shortening (shorten), like Fig. 3 (b), dash area is represented PUCCH among the figure.
When the different relay stations in the same sub-district adopt the different timing scene; Particularly when the different relay stations in the same sub-district have adopted the different sub scene in the improved up scene 4 owing to the difference of propagation delay; Following situation will occur: a part of relay station has the up backhaul sub-frame resources of 14 or 12 symbols in a relaying backhaul subframe, and another part relay station only has the up backhaul sub-frame resources of 13 or 11 symbols in same relaying backhaul subframe.As shown in Figure 2 again; When RN1 and RN2 belong to same sub-district; Particularly for the UCI of form 1/1a/1b; The PUCCH structure that on the up channel of this sub-district, will occur normal PUCCH structure and shortening simultaneously, and the PUCCH of these two kinds of structures can't be multiplexing on identical running time-frequency resource, thus can cause the wasting of resources.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of PUCCH sending method and system of junction network, makes to carry out multiplexingly when different relay stations send PUCCH in the sub-district on up backhaul subframe, to save resource, improves systematic function.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of Physical Uplink Control Channel (PUCCH) sending method of junction network, this method comprises:
The end position information of fixed configurations PUCCH on relay station is perhaps by the network equipment of the universal land radio access web (E-UTRAN) of the evolution said relay station of end position information notification with the PUCCH of configuration;
Said relay station is according to the end position information of said PUCCH, and the carrying of adopting corresponding PUCCH structure to carry out ascending control information (UCI) is sent.
Said on relay station the end position information of fixed configurations PUCCH, be specially:
The end position of fixed configurations PUCCH is single carrier-frequency division multiple access (SC-FDMA) symbol e on said relay station, and when the up backhaul subframe of said relay station adopts general cyclic prefix (CP), e≤12; When the up backhaul subframe of said relay station adopts expansion CP, e≤10.
Said relay station is according to the end position information of PUCCH, and the carrying of adopting corresponding PUCCH structure to carry out UCI is sent, and is specially:
Said relay station adopts the PUCCH structure that shortens to carry UCI on up backhaul subframe.
Said network equipment at E-UTRAN is specially the end position information notification relay station of the PUCCH of configuration:
Said network equipment is through directly sending the configuration information of PUCCH end position, the end position of indicating said relay station PUCCH to relay station;
Perhaps, said network equipment is through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station, the end position of indicating said relay station PUCCH indirectly;
Perhaps, said network equipment is through sending the configuration information of up backhaul subframe, the end position of indicating said relay station PUCCH indirectly to relay station.
The end position of said relay station PUCCH is SC-FDMA symbol e, and satisfies sx≤e≤n;
Wherein, sx is one of them SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, and 0≤sx≤n, n are last SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
Said network equipment is through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station, and the end position of indicating relay station PUCCH indirectly is specially:
Indication relay station PUCCH adopts complete PUCCH structure in the said structural arrangements information; Promptly when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11;
Perhaps; Indication relay station PUCCH adopts the PUCCH structure that shortens in the said structural arrangements information; Promptly when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 12, and when the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10.
Said network equipment is out-hole run reference signal (SRS) subframe through collocating uplink backhaul subframe, and implicit notice relay station PUCCH adopts the PUCCH structure that shortens on said up backhaul subframe.
The configuration information of said up backhaul subframe comprises: the up backhaul subframe of relay station pattern configuration information.
Said network equipment is through sending the configuration information of up backhaul subframe to relay station, the end position of indicating said relay station PUCCH indirectly is specially:
If adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 12; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10;
If adjacent subframe is not the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11.
Said relay station is according to the end position information of PUCCH, and the carrying of adopting corresponding PUCCH structure to carry out UCI is sent, and is specially:
If adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then said relay station adopts the PUCCH structure that shortens to carry UCI on up backhaul subframe;
If adjacent subframe is not the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then said relay station adopts complete PUCCH structure to carry UCI on up backhaul subframe.
The present invention also provides a kind of PUCCH transmitting system of junction network, and this system comprises: the network equipment of E-UTRAN and relay station, wherein,
Said network equipment is used for the said relay station of end position information notification with the PUCCH of configuration;
Said relay station is used for the end position information according to the PUCCH of fixed configurations, or the end position information of the PUCCH that informs of said network equipment, and the carrying of adopting corresponding PUCCH structure to carry out UCI is sent.
The end position of fixed configurations PUCCH is SC-FDMA symbol e on the relay station, and when the up backhaul subframe of said relay station adopts common CP, e≤12; When the up backhaul subframe of said relay station adopts expansion CP, e≤10.
Said relay station is further used for, and on up backhaul subframe, adopts the PUCCH structure that shortens to carry UCI.
Said network equipment is further used for, through directly send the configuration information of PUCCH end position, the end position of indicating said relay station PUCCH to relay station;
Perhaps, through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station, the end position of indicating said relay station PUCCH indirectly;
Perhaps, through send the configuration information of up backhaul subframe, the end position of indicating said relay station PUCCH indirectly to relay station.
The end position of said relay station PUCCH is SC-FDMA symbol e, and satisfies sx≤e≤n;
Wherein, sx is one of them SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, and 0≤sx≤n, n are last SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
Said network equipment is further used for; Indication relay station PUCCH adopts complete PUCCH structure in said structural arrangements information; Promptly when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 13, and when the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11;
Perhaps; Indication relay station PUCCH adopts the PUCCH structure that shortens in said structural arrangements information; Promptly when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 12, and when the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10.
Said network equipment is further used for, and is the SRS subframe through collocating uplink backhaul subframe, and implicit notice relay station PUCCH adopts the PUCCH structure that shortens on said up backhaul subframe.
The configuration information of said up backhaul subframe comprises: the up backhaul subframe of relay station pattern configuration information.
If adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 12; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10;
If adjacent subframe is not the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11.
Said relay station is further used for, and when adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, on up backhaul subframe, adopts the PUCCH structure of shortening to carry UCI;
When adjacent subframe was not the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, the complete PUCCH structure of employing was carried UCI on up backhaul subframe.
The PUCCH sending method and the system of a kind of junction network provided by the present invention, the end position information of fixed configurations PUCCH on relay station is perhaps by the network equipment of the E-UTRAN end position information notification relay station with the PUCCH of configuration; Relay station is according to the end position information of PUCCH, and the carrying of adopting corresponding PUCCH structure to carry out UCI is sent.Through the present invention, can make can carry out when different relay stations send PUCCH in the sub-district on up backhaul subframe multiplexing, thereby can save resource, improve systematic function.
Description of drawings
Fig. 1 is the structural representation of junction network of the prior art;
Fig. 2 is the structural representation of the up backhaul subframe of relay station in the prior art;
Fig. 3 (a) is a normal PUCCH structural representation in the prior art;
The PUCCH structural representation of Fig. 3 (b) for shortening in the prior art;
Fig. 4 is the flow chart of the PUCCH sending method of a kind of junction network of the present invention;
Fig. 5 is the subframe multiplexing structure sketch map in the embodiment of the invention one;
Fig. 6 be the embodiment of the invention two subframe multiplexing structure sketch map;
Fig. 7 be the embodiment of the invention three subframe multiplexing structure sketch map;
Fig. 8 be the embodiment of the invention four subframe multiplexing structure sketch map.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is further set forth in detail.
Can carry out when realizing that different relay stations sends PUCCH in the sub-district on up backhaul subframe multiplexing, the PUCCH sending method of a kind of junction network provided by the present invention, as shown in Figure 4, mainly may further comprise the steps:
Wherein, for the situation of the end position information of fixed configurations PUCCH on relay station, the end position of fixed configurations PUCCH is SC-FDMA symbol e on relay station, and when the up backhaul subframe of relay station adopts common CP, e≤12; When the up backhaul subframe of relay station adopts expansion CP, e≤10.Preferable, when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 12; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10.Corresponding this situation, relay station adopt the PUCCH structure that shortens to carry UCI (1/1a/1b form) on up backhaul subframe.
For the network equipment of the E-UTRAN situation with the end position information notification relay station of the PUCCH of configuration, network equipment can be through directly sending the configuration information of PUCCH end position, the end position of indication relay station PUCCH to relay station; Perhaps, through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station, the end position of indicating relay station PUCCH indirectly; Perhaps, through the configuration information (can be the up backhaul subframe of relay station pattern configuration information) that sends up backhaul subframe to relay station, the end position of indicating relay station PUCCH indirectly.Accordingly, the end position of relay station PUCCH is SC-FDMA symbol e, and satisfies sx≤e≤n; Wherein, sx is one of them SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, and 0≤sx≤n, n are last SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.Preferable, when up backhaul subframe adopts common CP, 12≤e≤13; When up backhaul subframe adopts expansion CP, 10≤e≤11.
In addition; Network equipment can be through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station; Indication relay station PUCCH adopts complete PUCCH structure, and promptly indication is when the up backhaul subframe of relay station adopts common CP indirectly, and the end position of PUCCH is a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11; Perhaps; Network equipment can be through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station; Indication relay station PUCCH adopts the PUCCH structure that shortens, and promptly when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 12; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10.
Network equipment can also be out-hole run reference signal (SRS, a Sounding reference signal) subframe through collocating uplink backhaul subframe, on up backhaul subframe, adopts the PUCCH structure that shortens with implicit notice relay station PUCCH.
The map network side apparatus is through sending the configuration information of up backhaul subframe to relay station; Indicate the situation of the end position of relay station PUCCH indirectly; If adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of up backhaul subframe indication relay station; Then when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 12, and when the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10; If adjacent subframe is not the up access subframe of relay station after the up backhaul subframe of the configuration information of up backhaul subframe indication relay station; Then when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11.So corresponding; If adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of up backhaul subframe indication relay station, then relay station adopts the PUCCH structure that shortens to carry UCI (1/1a/1b form) on up backhaul subframe; If adjacent subframe is not the up access subframe of relay station after the up backhaul subframe of the configuration information of up backhaul subframe indication relay station, then relay station adopts complete PUCCH structure to carry UCI (1/1a/1b form) on up backhaul subframe.
Below in conjunction with specific embodiment the PUCCH sending method of above-mentioned junction network is further set forth in detail.
In embodiments of the invention one; The relay station RN1 and the RN2 that are arranged in same trunking traffic network are in same sub-district; Up backhaul subframe adopts common CP; RN1 has the available up backhaul resources of 14 SC-FDMA symbols, and RN2 has the available up backhaul resources of 13 SC-FDMA symbols.According to said method of the present invention, the end position of relay station PUCCH is fixed as SC-FDMA symbol 12, and this relay station PUCCH adopts the PUCCH structure that shortens.Can realize that RN1 and the Physical Uplink Control Channel of RN2 are multiplexing on identical running time-frequency resource this moment; As shown in Figure 5; Dash area among the figure in the up backhaul subframe structure of RN1
expression RN1 Physical Uplink Control Channel; Dash area in the up backhaul subframe structure of RN2
expression RN2 Physical Uplink Control Channel, the dash area in the sub-frame of uplink structure of base station
expression RN1 and RN2 Physical Uplink Control Channel are multiplexing.
In embodiments of the invention two; The relay station RN1 and the RN2 that are positioned at same trunking traffic network are in same sub-district, and up backhaul subframe adopts common CP, and RN1 has the available up backhaul resources of 14 SC-FDMA symbols; RN2 has the available up backhaul resources of 13 SC-FDMA symbols; On subframe n, RN1 and RN2 need on back haul link, to send simultaneously the UCI of bear format 1/1a/1b, and UCI is carried on the Physical Uplink Control Channel.According to said method of the present invention; The Physical Uplink Control Channel that the network equipment of E-UTRAN passes through implicit notice RN1 of SRS subframe configuration information and RN2 adopts the PUCCH structure that shortens on subframe n, the end position of promptly indicating the Physical Uplink Control Channel of RN1 and RN2 is a symbol 12.Can realize that RN1 and the Physical Uplink Control Channel of RN2 are multiplexing on identical running time-frequency resource this moment; As shown in Figure 6; Dash area among the figure in the RN1 subframe n structure
expression RN1 Physical Uplink Control Channel; Dash area in the RN2 subframe n structure
expression RN2 Physical Uplink Control Channel, the dash area in the subframe n structure of base station
expression RN1 and RN2 Physical Uplink Control Channel are multiplexing.
In embodiments of the invention three; The relay station RN1, RN2, RN3, the RN4 that are positioned at same trunking traffic network are in same sub-district; Up backhaul subframe adopts common CP; On subframe n, RN1 and RN2 have the available up backhaul resources of 14 SC-FDMA symbols, and RN3 and RN4 have the available up backhaul resources of 13 SC-FDMA symbols.RN1, RN2, RN3, RN4 need on back haul link, to send simultaneously the UCI of bear format 1/1a/1b, and this UCI is carried on the Physical Uplink Control Channel.According to said method of the present invention; The network equipment of E-UTRAN is through directly sending the configuration information of relay station Physical Uplink Control Channel end position to relay station; The end position of Physical Uplink Control Channel on subframe n of notice RN1 and RN2 is SC-FDMA symbol 13, and this Physical Uplink Control Channel adopts complete PUCCH structure; The end position of Physical Uplink Control Channel on subframe n of notice RN3 and RN4 is SC-FDMA symbol 12, and this Physical Uplink Control Channel adopts the PUCCH structure that shortens.Can realize that RN1 and the Physical Uplink Control Channel of RN2 are multiplexing on identical running time-frequency resource this moment; And RN3 is multiplexing on identical running time-frequency resource with the Physical Uplink Control Channel of RN4; As shown in Figure 7; Dash area among the figure in the RN1 subframe n structure
expression RN1 Physical Uplink Control Channel; Dash area in the RN2 subframe n structure
expression RN2 Physical Uplink Control Channel; Dash area in the RN3 subframe n structure
expression RN1 Physical Uplink Control Channel; Dash area in the RN4 subframe n structure
expression RN1 Physical Uplink Control Channel; Dash area in the subframe n structure of base station
expression RN1 and RN2 Physical Uplink Control Channel are multiplexing, and the dash area in the subframe n structure of base station
expression RN3 and RN4 Physical Uplink Control Channel are multiplexing.
In embodiments of the invention four; The relay station RN1 and the RN2 that are positioned at same trunking traffic network are in same sub-district; Up backhaul subframe adopts common CP; The network equipment of E-UTRAN is through sending the configuration information of the up backhaul subframe of relay station to RN1 and RN2, indicates relay station subframe n and n+1 is configured to up backhaul subframe, subframe n+2 is configured to up access subframe, and wherein subframe n, n+1, n+2 are three adjacent uplink relay subframe.On subframe n and n+1, RN1 and RN2 need on back haul link, to send simultaneously the UCI of bear format 1/1a/1b, and this UCI is carried on the Physical Uplink Control Channel.According to said method of the present invention, the end position of the Physical Uplink Control Channel of RN1 and RN2 on subframe n is symbol 13, and this Physical Uplink Control Channel adopts complete PUCCH structure; The end position of the Physical Uplink Control Channel of RN1 and RN2 on subframe n+1 is symbol 12, and this Physical Uplink Control Channel adopts the PUCCH structure that shortens.Can realize that RN1 and the Physical Uplink Control Channel of RN2 are multiplexing on identical running time-frequency resource this moment on subframe n and n+1; As shown in Figure 8; Dash area among the figure in RN1 subframe n and the n+1 structure
expression RN1 Physical Uplink Control Channel; Dash area in RN2 subframe n and the n+1 structure
expression RN2 Physical Uplink Control Channel, the dash area in base station subframe n and the n+1 structure
expression RN1 and RN2 Physical Uplink Control Channel are multiplexing.
The PUCCH sending method of corresponding above-mentioned junction network, the present invention also provides a kind of PUCCH transmitting system of junction network, comprises network equipment and the relay station of E-UTRAN.Network equipment is used for the end position information notification relay station with the PUCCH of configuration; Relay station is used for the end position information according to the PUCCH of fixed configurations, or the end position information of the PUCCH that informs of network equipment, and the carrying of adopting corresponding PUCCH structure to carry out UCI is sent.
Wherein, the end position of fixed configurations PUCCH is SC-FDMA symbol e on the relay station, and when the up backhaul subframe of relay station adopts common CP, e≤12; When the up backhaul subframe of relay station adopts expansion CP, e≤10.Accordingly, relay station adopts the PUCCH structure that shortens to carry UCI on up backhaul subframe.
Preferable, network equipment is further used for, through directly sending the configuration information of PUCCH end position to relay station, the end position of indication relay station PUCCH; Perhaps, through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station, the end position of indicating relay station PUCCH indirectly; Perhaps, through send the configuration information of up backhaul subframe, the end position of indicating relay station PUCCH indirectly to relay station.Wherein, the end position of relay station PUCCH is SC-FDMA symbol e, and satisfies sx≤e≤n; Sx is one of them SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, and 0≤sx≤n, n are last SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
Preferable; Network equipment is further used for; Indication relay station PUCCH adopts complete PUCCH structure in structural arrangements information, and promptly when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11; Perhaps; Indication relay station PUCCH adopts the PUCCH structure that shortens in structural arrangements information; Promptly when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 12, and when the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10.
Network equipment can also be the SRS subframe through collocating uplink backhaul subframe, and implicit notice relay station PUCCH adopts the PUCCH structure that shortens on up backhaul subframe.
If adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of up backhaul subframe indication relay station; Then when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 12; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10; Accordingly, when relay station adjacent subframe after the up backhaul subframe of the configuration information of up backhaul subframe indication relay station is the up access subframe of relay station, on up backhaul subframe, adopt the PUCCH structure of shortening to carry UCI;
If adjacent subframe is not the up access subframe of relay station after the up backhaul subframe of the configuration information of up backhaul subframe indication relay station; Then when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11; Accordingly, when relay station adjacent subframe after the up backhaul subframe of the configuration information of up backhaul subframe indication relay station was not the up access subframe of relay station, the complete PUCCH structure of employing was carried UCI on up backhaul subframe.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (20)
1. the Physical Uplink Control Channel of a junction network (PUCCH) sending method is characterized in that this method comprises:
The end position information of fixed configurations PUCCH on relay station is perhaps by the network equipment of the universal land radio access web (E-UTRAN) of the evolution said relay station of end position information notification with the PUCCH of configuration;
Said relay station is according to the end position information of said PUCCH, and the carrying of adopting corresponding PUCCH structure to carry out ascending control information (UCI) is sent.
2. according to the PUCCH sending method of the said junction network of claim 1, it is characterized in that, said on relay station the end position information of fixed configurations PUCCH, be specially:
The end position of fixed configurations PUCCH is single carrier-frequency division multiple access (SC-FDMA) symbol e on said relay station, and when the up backhaul subframe of said relay station adopts general cyclic prefix (CP), e≤12; When the up backhaul subframe of said relay station adopts expansion CP, e≤10.
3. according to the PUCCH sending method of the said junction network of claim 2, it is characterized in that said relay station is according to the end position information of PUCCH, the carrying of adopting corresponding PUCCH structure to carry out UCI is sent, and is specially:
Said relay station adopts the PUCCH structure that shortens to carry UCI on up backhaul subframe.
4. according to the PUCCH sending method of the said junction network of claim 1, it is characterized in that said network equipment at E-UTRAN is specially the end position information notification relay station of the PUCCH of configuration:
Said network equipment is through directly sending the configuration information of PUCCH end position, the end position of indicating said relay station PUCCH to relay station;
Perhaps, said network equipment is through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station, the end position of indicating said relay station PUCCH indirectly;
Perhaps, said network equipment is through sending the configuration information of up backhaul subframe, the end position of indicating said relay station PUCCH indirectly to relay station.
5. according to the PUCCH sending method of the said junction network of claim 4, it is characterized in that the end position of said relay station PUCCH is SC-FDMA symbol e, and satisfy sx≤e≤n;
Wherein, sx is one of them SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, and 0≤sx≤n, n are last SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
6. according to the PUCCH sending method of claim 4 or 5 said junction networks; It is characterized in that; Said network equipment is through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station, and the end position of indicating relay station PUCCH indirectly is specially:
Indication relay station PUCCH adopts complete PUCCH structure in the said structural arrangements information; Promptly when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11;
Perhaps; Indication relay station PUCCH adopts the PUCCH structure that shortens in the said structural arrangements information; Promptly when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 12, and when the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10.
7. according to the PUCCH sending method of the said junction network of claim 6; It is characterized in that; Said network equipment is out-hole run reference signal (SRS) subframe through collocating uplink backhaul subframe, and implicit notice relay station PUCCH adopts the PUCCH structure that shortens on said up backhaul subframe.
8. according to the PUCCH sending method of claim 4 or 5 said junction networks, it is characterized in that the configuration information of said up backhaul subframe comprises: the up backhaul subframe of relay station pattern configuration information.
9. the PUCCH sending method of said junction network according to Claim 8 is characterized in that said network equipment is through sending the configuration information of up backhaul subframe to relay station, and the end position of indicating said relay station PUCCH indirectly is specially:
If adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 12; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10;
If adjacent subframe is not the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11.
10. according to the PUCCH sending method of the said junction network of claim 9, it is characterized in that said relay station is according to the end position information of PUCCH, the carrying of adopting corresponding PUCCH structure to carry out UCI is sent, and is specially:
If adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then said relay station adopts the PUCCH structure that shortens to carry UCI on up backhaul subframe;
If adjacent subframe is not the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then said relay station adopts complete PUCCH structure to carry UCI on up backhaul subframe.
11. the PUCCH transmitting system of a junction network is characterized in that, this system comprises: the network equipment of E-UTRAN and relay station, wherein,
Said network equipment is used for the said relay station of end position information notification with the PUCCH of configuration;
Said relay station is used for the end position information according to the PUCCH of fixed configurations, or the end position information of the PUCCH that informs of said network equipment, and the carrying of adopting corresponding PUCCH structure to carry out UCI is sent.
12. the PUCCH transmitting system according to the said junction network of claim 11 is characterized in that, the end position of fixed configurations PUCCH is SC-FDMA symbol e on the relay station, and when the up backhaul subframe of said relay station adopts common CP, e≤12; When the up backhaul subframe of said relay station adopts expansion CP, e≤10.
13. the PUCCH transmitting system according to the said junction network of claim 12 is characterized in that said relay station is further used for, and on up backhaul subframe, adopts the PUCCH structure that shortens to carry UCI.
14. the PUCCH transmitting system according to the said junction network of claim 111 is characterized in that said network equipment is further used for, through directly send the configuration information of PUCCH end position, the end position of indicating said relay station PUCCH to relay station;
Perhaps, through to the direct or implicit structural arrangements information that notice PUCCH adopted of relay station, the end position of indicating said relay station PUCCH indirectly;
Perhaps, through send the configuration information of up backhaul subframe, the end position of indicating said relay station PUCCH indirectly to relay station.
15. the PUCCH transmitting system according to the said junction network of claim 14 is characterized in that, the end position of said relay station PUCCH is SC-FDMA symbol e, and satisfies sx≤e≤n;
Wherein, sx is one of them SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, and 0≤sx≤n, n are last SC-FDMA symbol that the up backhaul subframe of relay station is used for up emission, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
16. PUCCH transmitting system according to claim 14 or 15 said junction networks; It is characterized in that said network equipment is further used for, indication relay station PUCCH adopts complete PUCCH structure in said structural arrangements information; Promptly when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 13, and when the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11;
Perhaps; Indication relay station PUCCH adopts the PUCCH structure that shortens in said structural arrangements information; Promptly when the up backhaul subframe of relay station adopts common CP; The end position of PUCCH is a SC-FDMA symbol 12, and when the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10.
17. PUCCH transmitting system according to the said junction network of claim 16; It is characterized in that; Said network equipment is further used for, and is the SRS subframe through collocating uplink backhaul subframe, and implicit notice relay station PUCCH adopts the PUCCH structure that shortens on said up backhaul subframe.
18. the PUCCH transmitting system according to claim 14 or 15 said junction networks is characterized in that, the configuration information of said up backhaul subframe comprises: the up backhaul subframe of relay station pattern configuration information.
19. PUCCH transmitting system according to the said junction network of claim 18; It is characterized in that; If adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station; Then when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 12; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 10;
If adjacent subframe is not the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, then when the up backhaul subframe of relay station adopted common CP, the end position of PUCCH was a SC-FDMA symbol 13; When the up backhaul subframe of relay station adopted expansion CP, the end position of PUCCH was a SC-FDMA symbol 11.
20. PUCCH transmitting system according to the said junction network of claim 19; It is characterized in that; Said relay station is further used for; When adjacent subframe is the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, on up backhaul subframe, adopt the PUCCH structure of shortening to carry UCI;
When adjacent subframe was not the up access subframe of relay station after the up backhaul subframe of the configuration information of said up backhaul subframe indication relay station, the complete PUCCH structure of employing was carried UCI on up backhaul subframe.
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| CN201010240863.8A CN102347815B (en) | 2010-07-24 | 2010-07-24 | A kind of PUCCH sending method of junction network and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018050094A1 (en) * | 2016-09-14 | 2018-03-22 | Mediatek Inc. | Short pucch in nr networks |
| WO2018228394A1 (en) * | 2017-06-15 | 2018-12-20 | 华为技术有限公司 | Method and apparatus for sending control information, or method and apparatus for receiving control information |
| CN110365457A (en) * | 2018-04-11 | 2019-10-22 | 成都华为技术有限公司 | A kind of transmission method and device of reference signal |
| CN111556558A (en) * | 2017-10-09 | 2020-08-18 | 高通股份有限公司 | Timing and frame structure in an Integrated Access Backhaul (IAB) network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103179075B (en) * | 2008-11-20 | 2017-06-27 | 华为技术有限公司 | Method, network device and system for determining resource mapping in coordinated multi-point transmission |
-
2010
- 2010-07-24 CN CN201010240863.8A patent/CN102347815B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018050094A1 (en) * | 2016-09-14 | 2018-03-22 | Mediatek Inc. | Short pucch in nr networks |
| WO2018228394A1 (en) * | 2017-06-15 | 2018-12-20 | 华为技术有限公司 | Method and apparatus for sending control information, or method and apparatus for receiving control information |
| CN109152003A (en) * | 2017-06-15 | 2019-01-04 | 华为技术有限公司 | A kind of control information sends or receives method and device |
| CN109152003B (en) * | 2017-06-15 | 2021-05-14 | 华为技术有限公司 | A method and device for sending or receiving control information |
| CN111556558A (en) * | 2017-10-09 | 2020-08-18 | 高通股份有限公司 | Timing and frame structure in an Integrated Access Backhaul (IAB) network |
| US11647472B2 (en) | 2017-10-09 | 2023-05-09 | Qualcomm Incorporated | Timing and frame structure in an integrated access backhaul (IAB) network |
| CN110365457A (en) * | 2018-04-11 | 2019-10-22 | 成都华为技术有限公司 | A kind of transmission method and device of reference signal |
| CN110365457B (en) * | 2018-04-11 | 2021-01-15 | 成都华为技术有限公司 | Transmission method and device of reference signal |
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