CN102347815B - A kind of PUCCH sending method of junction network and system - Google Patents
A kind of PUCCH sending method of junction network and system Download PDFInfo
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- CN102347815B CN102347815B CN201010240863.8A CN201010240863A CN102347815B CN 102347815 B CN102347815 B CN 102347815B CN 201010240863 A CN201010240863 A CN 201010240863A CN 102347815 B CN102347815 B CN 102347815B
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Abstract
The invention discloses a kind of Physical Uplink Control Channel (PUCCH) sending method and system of junction network, method comprises: the end position information of fixed configurations PUCCH on relay station, or by the network equipment of the universal land radio access web (E-UTRAN) of evolution by the end position information notification relay station of PUCCH of configuration; Relay station is according to the end position information of PUCCH, and the carrying adopting corresponding PUCCH structure to perform ascending control information (UCI) sends.By the present invention, can carry out multiplexing when making different relay station in community send PUCCH in up backhaul subframe, thus can saving resource, improve systematic function.
Description
Technical field
The present invention relates to the relaying technique of moving communicating field, particularly relate to a kind of Physical Uplink Control Channel (PUCCH) sending method and system of junction network.
Background technology
Relaying technique, as a kind of emerging technology, causes and pays close attention to more and more widely, is regarded as the key technology of super 3 g mobile communication system/forth generation mobile communication system (B3G/4G, Beyond3G/4G).Because future wireless system or cellular system require to increase coverage, support higher rate transmission, this proposes new challenge to wireless communication technology.Meanwhile, the cost issues of system building and maintenance is more outstanding.Along with the increase of transmission rate and communication distance, the energy consumption issues of battery also becomes outstanding, and the radio communication in future will adopt higher frequency, and the pathloss attenuation caused thus is more serious.By relaying technique, traditional one hop link can be divided into multiple multi-hop link, due to Distance Shortened, this greatly will reduce path loss, contribute to improving transmission quality, expand communication range, thus provide quicker better service for user.
As shown in Figure 1, in junction network, the link that relay station participates between the user terminal of service and relay station is called access link (AccessLink), link between relay station and base station is called back haul link (BackhaulLink), and the link that base station participates between the user terminal of service and base station is called the link that direct transfers (DirectLink).
In Long Term Evolution (LTE, LongTermEvolution) and evolution communication systems thereof, the standard time length of 1 sub-frame of uplink is T
subframe=30720T
s=1ms, wherein, T
srepresent time slot.If adopt general cyclic prefix (CP in subframe, CyclicPrefix), then 1 sub-frame of uplink comprises 14 Single Carrier-Frequency Division multiple access (SC-FDMA, SingleCarrier-FrequencyDivisionMultipleAccess) symbol, namely from symbol 0 to symbol 13, by CP length computation interior, the length of SC-FDMA symbol 0 and symbol 7 is 2208T
s, the length of other symbols is 2192T
s; If adopt expansion CP in subframe, then 1 sub-frame of uplink comprises 12 SC-FDMA symbols, and namely from symbol 0 to symbol 11, by CP length computation interior, the length of each SC-FDMA symbol is 2192T
s, wherein
millisecond.
For relaying (In-bandrelaying) in band, back haul link, access link and the link that direct transfers all are operated on identical frequency spectrum.Generally, disturbing in order to avoid producing between the receiving terminal and transmitting terminal of relay station self, for relaying in band, regulation back haul link and access link can not carry out descending and up transmission simultaneously, and must stagger in time.Therefore, for relay station, relay sub-frame is divided into backhaul subframe and access subframe, and the descending and uplink of the back haul link of relay station is carried out respectively in descending and up backhaul subframe, the descending and uplink of access link respectively descending with multi-upstream access subframe on carry out.Backhaul subframe is identical with the CP configuration of access subframe.
In addition; because relay station is carrying out the conversion of the radio frequency between downlink and downlink reception; or when the radio frequency between up transmitting and uplink receiving is changed; need the protection interval of certain hour length; and this transfer process cannot complete in CP; therefore, the protection interval for the conversion of relay station radio frequency will take the resource of a part of back haul link or access link etc., causes the wasting of resources.In order to ensure the utilance of as far as possible high backhaul resources, current common method is the transmission range of restriction backhaul subframe, and adjusts the timing of access link and the configuration at protection interval, thus realizes the minimizing of the wasting of resources.Concrete, the configuration at different backhaul subframe transmission range restricted version, access link timing adjustment degree and protection interval, is embodied in different timed scenario.Timing herein refers to, network node carries out the start time launching or receive or terminal.At present, the possible scene of the up timing of relay station has 3: up scene 2b, the up scene 2a of improvement and the up scene 4 of improvement.
For the up timing of relay station, be located in up backhaul subframe, relay station carries out back haul link up transmitting up-to symbol q and terminates from SC-FDMA symbol p.Being described below so to the up timed scenario of relay station:
Up scene 2b: in up backhaul subframe, relay station from SC-FDMA symbol p=0, carry out the up transmitting of back haul link until this subframe last symbol (when adopt common CP time, q=13; When adopting expansion CP, q=11) terminate, transmitting constant time lag a period of time (up fixed delay) of up back haul link is compared in the now reception timing of relay station uplink access link, last symbol that protection interval for radio frequency conversion takies multi-upstream access subframe (when adopting common CP, is symbol 13; When adopting expansion CP, be symbol 11).
Improve up scene 2a: in up backhaul subframe, relay station from SC-FDMA symbol p=0, carry out the up transmitting of back haul link until this subframe last symbol (when adopt common CP time, q=13; When adopting expansion CP; q=11) terminate; transmitting timing advance a period of time (special time delay) of adjacent up back haul link is compared in the now reception timing of relay station uplink access link, takies the part at the protection interval in the special subframe under TDD mode for the protection interval of radio frequency conversion.The up scene 2a improved is only applicable to TDD mode.
The up scene 4 improved: in up backhaul subframe, relay station carries out back haul link up transmitting up-to symbol q ∈ { 12 from SC-FDMA symbol p=0, 13} (when adopting common CP) or q ∈ { 10, 11} (when adopting expansion CP) terminates (depending on the propagation delay of relay station to base station and the radio frequency conversion time delay of relay station), the now reception timing of relay station uplink access link and the uplink receiving Timing Synchronization of base station, protection interval for radio frequency conversion takies last symbol of multi-upstream access subframe and up backhaul subframe (when adopting common CP, be respectively the symbol 13 of multi-upstream access subframe and up backhaul subframe, when adopting expansion CP, be respectively the symbol 11 of multi-upstream access subframe and up backhaul subframe), or last symbol only taking multi-upstream access subframe (when adopting common CP, is symbol 13, when adopting expansion CP, be symbol 11).
As mentioned above, in the up scene 4 improved, backhaul transport scope in up backhaul subframe depends on the radio frequency conversion time delay of propagation delay between relay station and base station and relay station, and according to the propagation delay of varying level, the up scene 4 of improvement can be divided into again two sub-scenes.Such as, as propagation delay about 0 ~ 624T
stime, corresponding sub-scenario A; When propagation delay is about 624T
s~ 1568T
s(employing common CP) or 624T
s~ 1936T
stime (adopting expansion CP), corresponding sub-scenario B.
In above-mentioned different up timed scenario, owing to having different timing properties, the spread scope of the up backhaul subframe of relay station is different, shown in table 1 specific as follows,
Table 1
Clearly, when relay station adopts different timed scenario, the obtainable up backhaul subframe transmission range of relay station institute is different.As the up scene 2b of employing, or the up scene 2a improved, or during the larger subfield scape of the propagation delay of up scene 4 improved, the transmission range of upper back haul link is from symbol 0 to symbol 13 (during configuration common CP), totally 14 symbols, or from symbol 0 to symbol 11 (during configuration expansion CP), totally 12 symbols; And when the subfield scape adopting the propagation delay of the up scene 4 improved less, the transmission range of up back haul link is from symbol 0 to symbol 12 (during configuration common CP), totally 13 symbols, or from symbol 0 to symbol 10 (during configuration expansion CP), totally 11 symbols.
Visible, compared with adopting the relay station of the sub-scenario A in the up scene 4 improved and adopting the relay station of other timed scenario, the SC-FDMA symbol that up backhaul subframe can use is different.As shown in Figure 2, suppose that up backhaul subframe adopts common CP, and adjacent after up backhaul subframe be multi-upstream access subframe, the propagation delay between relay station RN1 and base station is less (is such as less than 624T
s), adopt the sub-scenario A of the up scene 4 improved, now the operable backhaul link resource of RN1 comprises SC-FDMA symbol 0 up-to symbol 12, and symbol 13 cannot be used for up backhaul transport; And comparatively large (the such as 1568T of propagation delay between relay station RN2 and base station
s), adopt the sub-scenario B of the up scene 4 improved, now RN2 can use SC-FDMA symbols all in backhaul subframe, comprises symbol 0 up-to symbol 13.Namely the up backhaul link resource of RN1 is fewer than a RN2 SC-FDMA symbol 13.
Current research conclusion is thought, when relay station sends upstream physical layer control signal on up back haul link, need on back haul link, continue to use existing Physical Uplink Control Channel (PUCCH completely, PhysicalUplinkControlChannel) structure, if particularly PUCCH is used for the ascending control information (UCI of bear format 1/1a/1b, UplinkControlInformation), when having the up backhaul subframe resource of 14 or 12 symbols in a relay backhaul subframe, continue to use normal PUCCH structure, as Fig. 3 (a), in figure, dash area represents PUCCH, when having the up backhaul subframe resource of 13 or 11 symbols in a relay backhaul subframe, continue to use the PUCCH structure of shortening (shorten), as in Fig. 3 (b), figure, dash area represents PUCCH.
When the different relay stations in same community adopt different timing scene, when particularly to have employed the different subfield scape in the up scene 4 of improvement due to the difference of propagation delay when the different relay stations in same community, just there will be following situation: a part of relay station has the up backhaul subframe resource of 14 or 12 symbols in a relay backhaul subframe, and another part relay station only has the up backhaul subframe resource of 13 or 11 symbols in same relay backhaul subframe.Again as shown in Figure 2, when RN1 and RN2 belongs to same community, particularly for the UCI of form 1/1a/1b, the up channel of this community will occur the PUCCH structure of normal PUCCH structure and shortening simultaneously, and the PUCCH of these two kinds of structures cannot be multiplexing on identical running time-frequency resource, thus the wasting of resources can be caused.
Summary of the invention
In view of this, main purpose of the present invention is the PUCCH sending method and the system that provide a kind of junction network, can carry out multiplexing when making different relay station in community send PUCCH in up backhaul subframe, with saving 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, the method comprises:
The end position information of fixed configurations PUCCH on relay station, or by the universal land radio access web (E-UTRAN) of evolution network equipment by configuration PUCCH end position information notification described in relay station;
Described relay station is according to the end position information of described PUCCH, and the carrying adopting corresponding PUCCH structure to perform ascending control information (UCI) sends.
The end position information of described fixed configurations PUCCH on relay station, is specially:
On described relay station, the end position of fixed configurations PUCCH is Single Carrier-Frequency Division multiple access (SC-FDMA) symbol e, and when up backhaul subframe employing general cyclic prefix (CP) of described relay station, e≤12; As the up backhaul subframe employing expansion CP of described relay station, e≤10.
Described relay station is according to the end position information of PUCCH, and the carrying adopting corresponding PUCCH structure to perform UCI sends, and is specially:
Described relay station adopts the PUCCH structure of shortening to carry UCI in up backhaul subframe.
The described network equipment at E-UTRAN, by the end position information notification relay station of the PUCCH of configuration, is specially:
Described network equipment, by sending the configuration information of PUCCH end position directly to relay station, indicates the end position of described relay station PUCCH;
Or, the structure configuration information of described network equipment by adopting to the notice PUCCH that relay station is direct or implicit, the indirectly end position of the described relay station PUCCH of instruction;
Or described network equipment, by sending the configuration information of up backhaul subframe to relay station, indicates the end position of described relay station PUCCH indirectly.
The end position of described relay station PUCCH is SC-FDMA symbol e, and meets sx≤e≤n;
Wherein, sx is the up backhaul subframe of relay station one of them SC-FDMA symbol for up transmitting, and 0≤sx≤n, n is the up backhaul subframe of relay station last SC-FDMA symbol for up transmitting, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
The structure configuration information of described network equipment by adopting to the notice PUCCH that relay station is direct or implicit, the indirectly end position of instruction relay station PUCCH, be specially:
Relay station PUCCH is indicated to adopt complete PUCCH structure in described structure configuration information, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11;
Or, relay station PUCCH is indicated to adopt the PUCCH structure shortened in described structure configuration information, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10.
Described network equipment is uplink measurement reference signal (SRS) subframe by collocating uplink backhaul subframe, and implicit notice relay station PUCCH adopts the PUCCH structure of shortening in described up backhaul subframe.
The configuration information of described up backhaul subframe comprises: relay station up backhaul subframe pattern configuration information.
Described network equipment is by sending the configuration information of up backhaul subframe to relay station, the end position of the described relay station PUCCH of instruction indirectly, is specially:
If adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then, when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12; When the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10;
If adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then, when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13; When the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11.
Described relay station is according to the end position information of PUCCH, and the carrying adopting corresponding PUCCH structure to perform UCI sends, and is specially:
If adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then described relay station adopts the PUCCH structure of shortening to carry UCI in up backhaul subframe;
If adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then described relay station adopts complete PUCCH structure to carry UCI in up backhaul subframe.
Present invention also offers a kind of PUCCH transmitting system of junction network, this system comprises: the network equipment of E-UTRAN and relay station, wherein,
Described network equipment, for will configuration PUCCH end position information notification described in relay station;
Described relay station, for the end position information of the PUCCH according to fixed configurations, or the end position information of PUCCH that described network equipment is informed, the carrying adopting corresponding PUCCH structure to perform UCI sends.
On relay station, the end position of fixed configurations PUCCH is SC-FDMA symbol e, and when the up backhaul subframe employing common CP of described relay station, e≤12; As the up backhaul subframe employing expansion CP of described relay station, e≤10.
Described relay station is further used for, and up backhaul subframe adopts the PUCCH structure of shortening to carry UCI.
Described network equipment is further used for, and by sending the configuration information of PUCCH end position directly to relay station, indicates the end position of described relay station PUCCH;
Or, the structure configuration information adopted by the notice PUCCH direct or implicit to relay station, the indirectly end position of the described relay station PUCCH of instruction;
Or, by sending the configuration information of up backhaul subframe to relay station, the end position of the described relay station PUCCH of instruction indirectly.
The end position of described relay station PUCCH is SC-FDMA symbol e, and meets sx≤e≤n;
Wherein, sx is the up backhaul subframe of relay station one of them SC-FDMA symbol for up transmitting, and 0≤sx≤n, n is the up backhaul subframe of relay station last SC-FDMA symbol for up transmitting, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
Described network equipment is further used for, in described structure configuration information, indicate relay station PUCCH to adopt complete PUCCH structure, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11;
Or, in described structure configuration information, indicate relay station PUCCH to adopt the PUCCH structure shortened, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10.
Described network equipment is further used for, and is SRS by collocating uplink backhaul subframe, and implicit notice relay station PUCCH adopts the PUCCH structure of shortening in described up backhaul subframe.
The configuration information of described up backhaul subframe comprises: relay station up backhaul subframe pattern configuration information.
If adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then, when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12; When the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10;
If adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then, when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13; When the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11.
Described relay station is further used for, and when adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, up backhaul subframe adopts the PUCCH structure of shortening to carry UCI;
When adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, up backhaul subframe adopt complete PUCCH structure to carry UCI.
The PUCCH sending method of a kind of junction network provided by the present invention and system, the end position information of fixed configurations PUCCH on relay station, or by the network equipment of E-UTRAN by the end position information notification relay station of PUCCH of configuration; Relay station is according to the end position information of PUCCH, and the carrying adopting corresponding PUCCH structure to perform UCI sends.By the present invention, can carry out multiplexing when different relay station in community can be made in up backhaul subframe to send PUCCH, thus can saving resource, improve systematic function.
Accompanying drawing explanation
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 prior art;
Fig. 3 (a) is PUCCH structural representation normal in prior art;
The PUCCH structural representation of Fig. 3 (b) for shortening in 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 schematic diagram in the embodiment of the present invention one;
Fig. 6 be the embodiment of the present invention two subframe multiplexing structure schematic diagram;
Fig. 7 be the embodiment of the present invention three subframe multiplexing structure schematic diagram;
Fig. 8 be the embodiment of the present invention four subframe multiplexing structure schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the present invention is further elaborated.
Multiplexing for realizing can carrying out when relay stations different in community sends PUCCH in up backhaul subframe, the PUCCH sending method of a kind of junction network provided by the present invention, as shown in Figure 4, mainly comprises the following steps:
Step 401, the end position information of fixed configurations PUCCH on relay station, or by the network equipment of the universal land radio access web (E-UTRAN, EvolvedUniversalTerrestrialRadioAccessNetwork) of evolution by the end position information notification relay station of PUCCH of configuration.
Step 402, relay station is according to the end position information of PUCCH, and the carrying adopting corresponding PUCCH structure to perform UCI sends.
Wherein, for the situation of the end position information of fixed configurations PUCCH on relay station, on relay station, the end position of fixed configurations PUCCH is SC-FDMA symbol e, and when the up backhaul subframe employing common CP of relay station, e≤12; As the up backhaul subframe employing expansion CP of relay station, e≤10.Preferably, when the up backhaul subframe employing common CP of relay station, the end position of PUCCH is SC-FDMA symbol 12; As the up backhaul subframe employing expansion CP of relay station, the end position of PUCCH is SC-FDMA symbol 10.Corresponding this situation, relay station adopts the PUCCH structure of shortening to carry UCI (1/1a/1b form) in up backhaul subframe.
For the network equipment of E-UTRAN by the situation of end position information notification relay station of the PUCCH of configuration, network equipment can by sending the configuration information of PUCCH end position directly to relay station, the end position of instruction relay station PUCCH; Or, the structure configuration information adopted by the notice PUCCH direct or implicit to relay station, the indirectly end position of instruction relay station PUCCH; Or, by sending the configuration information (can be relay station up backhaul subframe pattern configuration information) of up backhaul subframe to relay station, the end position of instruction relay station PUCCH indirectly.Accordingly, the end position of relay station PUCCH is SC-FDMA symbol e, and meets sx≤e≤n; Wherein, sx is the up backhaul subframe of relay station one of them SC-FDMA symbol for up transmitting, and 0≤sx≤n, n is the up backhaul subframe of relay station last SC-FDMA symbol for up transmitting, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.Preferably, 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 by the structure configuration information adopted to the notice PUCCH that relay station is direct or implicit, instruction relay station PUCCH adopts complete PUCCH structure, namely indirectly indicate when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11; Or, network equipment can by the structure configuration information adopted to the notice PUCCH that relay station is direct or implicit, instruction relay station PUCCH adopts the PUCCH structure shortened, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10.
Network equipment can also be uplink measurement reference signal (SRS, Soundingreferencesignal) subframe by collocating uplink backhaul subframe, adopts the PUCCH structure of shortening with implicit notice relay station PUCCH in up backhaul subframe.
Map network side apparatus is by sending the configuration information of up backhaul subframe to relay station, the situation of the end position of indirect instruction relay station PUCCH, if adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of up backhaul subframe, then when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10; If adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of up backhaul subframe, then when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11.So corresponding, if adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of up backhaul subframe, then relay station adopts the PUCCH structure of shortening to carry UCI (1/1a/1b form) in up backhaul subframe; If adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of up backhaul subframe, then relay station adopts complete PUCCH structure to carry UCI (1/1a/1b form) in up backhaul subframe.
Elaborate further below in conjunction with the PUCCH sending method of specific embodiment to above-mentioned junction network.
In embodiments of the invention one, relay station RN1 and RN2 being arranged in same relayed communications network is in same community, up backhaul subframe adopts common CP, RN1 has the available upstream backhaul resources of 14 SC-FDMA symbols, and RN2 has the available upstream 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 shortened.Now can realize the multiplexing physical uplink control channel of RN1 and RN2 on identical running time-frequency resource, as shown in Figure 5, the dash area in figure in the up return sub-frame structure of RN1
represent RN1 Physical Uplink Control Channel, the dash area in the up return sub-frame structure of RN2
represent RN2 Physical Uplink Control Channel, the dash area in the sub-frame of uplink structure of base station
represent RN1 and RN2 multiplexing physical uplink control channel.
In embodiments of the invention two, relay station RN1 and RN2 being positioned at same relayed communications network is in same community, up backhaul subframe adopts common CP, RN1 has the available upstream backhaul resources of 14 SC-FDMA symbols, RN2 has the available upstream backhaul resources of 13 SC-FDMA symbols, on subframe n, RN1 and RN2 needs the UCI simultaneously sending bear format 1/1a/1b on back haul link, and UCI is carried on Physical Uplink Control Channel.According to said method of the present invention, the Physical Uplink Control Channel of the notice RN1 that the network equipment of E-UTRAN is implied by SRS configuration information and RN2 adopts the PUCCH structure of shortening on subframe n, and the end position namely indicating the Physical Uplink Control Channel of RN1 and RN2 is symbol 12.Now can realize the multiplexing physical uplink control channel of RN1 and RN2 on identical running time-frequency resource, as shown in Figure 6, the dash area in figure in RN1 subframe n structure
represent RN1 Physical Uplink Control Channel, the dash area in RN2 subframe n structure
represent RN2 Physical Uplink Control Channel, the dash area in the subframe n structure of base station
represent RN1 and RN2 multiplexing physical uplink control channel.
In embodiments of the invention three, relay station RN1, RN2, RN3, RN4 of being positioned at same relayed communications network are in same community, up backhaul subframe adopts common CP, on subframe n, RN1 and RN2 has the available upstream backhaul resources of 14 SC-FDMA symbols, RN3 and RN4 has the available upstream backhaul resources of 13 SC-FDMA symbols.RN1, RN2, RN3, RN4 need the UCI simultaneously sending bear format 1/1a/1b on back haul link, and this UCI is carried on Physical Uplink Control Channel.According to said method of the present invention, the network equipment of E-UTRAN is by sending the configuration information of relay station Physical Uplink Control Channel end position directly 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 shortened.Now can realize the multiplexing physical uplink control channel of RN1 and RN2 on identical running time-frequency resource, and the multiplexing physical uplink control channel of RN3 and RN4 is on identical running time-frequency resource, as shown in Figure 7, the dash area in figure in RN1 subframe n structure
represent RN1 Physical Uplink Control Channel, the dash area in RN2 subframe n structure
represent RN2 Physical Uplink Control Channel, the dash area in RN3 subframe n structure
represent RN1 Physical Uplink Control Channel, the dash area in RN4 subframe n structure
represent RN1 Physical Uplink Control Channel, the dash area in the subframe n structure of base station
represent RN1 and RN2 multiplexing physical uplink control channel, the dash area in the subframe n structure of base station
represent RN3 and RN4 multiplexing physical uplink control channel.
In embodiments of the invention four, relay station RN1 and RN2 being positioned at same relayed communications network is in same community, up backhaul subframe adopts common CP, the network equipment of E-UTRAN is by sending the configuration information of the up backhaul subframe of relay station to RN1 and RN2, instruction relay station subframe n and n+1 is configured to up backhaul subframe, subframe n+2 is configured to multi-upstream 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 needs the UCI simultaneously sending bear format 1/1a/1b on back haul link, and this UCI is carried on Physical Uplink Control Channel.According to said method of the present invention, the end position of Physical Uplink Control Channel on subframe n of RN1 and RN2 is symbol 13, and this Physical Uplink Control Channel adopts complete PUCCH structure; The end position of Physical Uplink Control Channel on subframe n+1 of RN1 and RN2 is symbol 12, and this Physical Uplink Control Channel adopts the PUCCH structure shortened.Now can realize the multiplexing physical uplink control channel of RN1 and RN2 on subframe n with n+1 on identical running time-frequency resource, as shown in Figure 8, the dash area in figure in RN1 subframe n and n+1 structure
represent RN1 Physical Uplink Control Channel, the dash area in RN2 subframe n and n+1 structure
represent RN2 Physical Uplink Control Channel, the dash area in base station subframe n and n+1 structure
represent RN1 and RN2 multiplexing physical uplink control channel.
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, for the end position information notification relay station of the PUCCH by configuration; Relay station, for the end position information of the PUCCH according to fixed configurations, or the end position information of PUCCH that network equipment is informed, the carrying adopting corresponding PUCCH structure to perform UCI sends.
Wherein, on relay station, the end position of fixed configurations PUCCH is SC-FDMA symbol e, and when the up backhaul subframe employing common CP of relay station, e≤12; As the up backhaul subframe employing expansion CP of relay station, e≤10.Accordingly, relay station adopts the PUCCH structure of shortening to carry UCI in up backhaul subframe.
Preferably, network equipment is further used for, by sending the configuration information of PUCCH end position directly to relay station, and the end position of instruction relay station PUCCH; Or, the structure configuration information adopted by the notice PUCCH direct or implicit to relay station, the indirectly end position of instruction relay station PUCCH; Or, by sending the configuration information of up backhaul subframe to relay station, the end position of instruction relay station PUCCH indirectly.Wherein, the end position of relay station PUCCH is SC-FDMA symbol e, and meets sx≤e≤n; Sx is the up backhaul subframe of relay station one of them SC-FDMA symbol for up transmitting, and 0≤sx≤n, n is the up backhaul subframe of relay station last SC-FDMA symbol for up transmitting, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
Preferably, network equipment is further used for, in structure configuration information, indicate relay station PUCCH to adopt complete PUCCH structure, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11; Or, in structure configuration information, indicate relay station PUCCH to adopt the PUCCH structure shortened, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10.
Network equipment can also be SRS by collocating uplink backhaul subframe, and implicit notice relay station PUCCH adopts the PUCCH structure of shortening in up backhaul subframe.
If adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of up backhaul subframe, then when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10; Accordingly, relay station when adjacent subframe is relay station multi-upstream access subframe after the configuration information instruction relay station up backhaul subframe of up backhaul subframe, up backhaul subframe adopts the PUCCH structure of shortening to carry UCI;
If adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of up backhaul subframe, then when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11; Accordingly, relay station when adjacent subframe is not relay station multi-upstream access subframe after the configuration information instruction relay station up backhaul subframe of up backhaul subframe, up backhaul subframe adopts complete PUCCH structure to carry UCI.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (20)
1. a Physical Uplink Control Channel PUCCH sending method for junction network, it is characterized in that, the method comprises:
The end position information of fixed configurations PUCCH on relay station, or by the universal land radio access web E-UTRAN of evolution network equipment by configuration PUCCH end position information notification described in relay station;
Described relay station is according to the end position information of described PUCCH, and the carrying adopting corresponding PUCCH structure to perform ascending control information UCI sends.
2. the PUCCH sending method of junction network according to claim 1, it is characterized in that, the end position information of described fixed configurations PUCCH on relay station, is specially:
On described relay station, the end position of fixed configurations PUCCH is Single Carrier-Frequency Division multiple access SC-FDMA symbol e, and as the up backhaul subframe employing general cyclic prefix CP of described relay station, e≤12; As the up backhaul subframe employing expansion CP of described relay station, e≤10.
3. the PUCCH sending method of junction network according to claim 2, is characterized in that, described relay station is according to the end position information of PUCCH, and the carrying adopting corresponding PUCCH structure to perform UCI sends, and is specially:
Described relay station adopts the PUCCH structure of shortening to carry UCI in up backhaul subframe.
4. the PUCCH sending method of junction network according to claim 1, is characterized in that, the described network equipment at E-UTRAN, by the end position information notification relay station of the PUCCH of configuration, is specially:
Described network equipment, by sending the configuration information of PUCCH end position directly to relay station, indicates the end position of described relay station PUCCH;
Or, the structure configuration information of described network equipment by adopting to the notice PUCCH that relay station is direct or implicit, the indirectly end position of the described relay station PUCCH of instruction;
Or described network equipment, by sending the configuration information of up backhaul subframe to relay station, indicates the end position of described relay station PUCCH indirectly.
5. the PUCCH sending method of junction network according to claim 4, it is characterized in that, the end position of described relay station PUCCH is SC-FDMA symbol e, and meets sx≤e≤n;
Wherein, sx is the up backhaul subframe of relay station one of them SC-FDMA symbol for up transmitting, and 0≤sx≤n, n is the up backhaul subframe of relay station last SC-FDMA symbol for up transmitting, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
6. the PUCCH sending method of junction network according to claim 4 or 5, it is characterized in that, the structure configuration information of described network equipment by adopting to the notice PUCCH that relay station is direct or implicit, the indirectly end position of instruction relay station PUCCH, be specially:
Relay station PUCCH is indicated to adopt complete PUCCH structure in described structure configuration information, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11;
Or, relay station PUCCH is indicated to adopt the PUCCH structure shortened in described structure configuration information, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10.
7. the PUCCH sending method of junction network according to claim 6, it is characterized in that, described network equipment is uplink measurement reference signal SRS by collocating uplink backhaul subframe, and implicit notice relay station PUCCH adopts the PUCCH structure of shortening in described up backhaul subframe.
8. the PUCCH sending method of junction network according to claim 4 or 5, it is characterized in that, the configuration information of described up backhaul subframe comprises: relay station up backhaul subframe pattern configuration information.
9. the PUCCH sending method of junction network according to claim 8, is characterized in that, described network equipment is by sending the configuration information of up backhaul subframe to relay station, the end position of the described relay station PUCCH of instruction indirectly, is specially:
If adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then, when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12; When the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10;
If adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then, when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13; When the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11.
10. the PUCCH sending method of junction network according to claim 9, is characterized in that, described relay station is according to the end position information of PUCCH, and the carrying adopting corresponding PUCCH structure to perform UCI sends, and is specially:
If adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then described relay station adopts the PUCCH structure of shortening to carry UCI in up backhaul subframe;
If adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then described relay station adopts complete PUCCH structure to carry UCI in up backhaul subframe.
The Physical Uplink Control Channel PUCCH transmitting system of 11. 1 kinds of junction networks, it is characterized in that, this system comprises: the network equipment of the universal land radio access web E-UTRAN of evolution and relay station, wherein,
Described network equipment, for will configuration PUCCH end position information notification described in relay station;
Described relay station, for the end position information of the PUCCH according to fixed configurations, or the end position information of PUCCH that described network equipment is informed, the carrying adopting corresponding PUCCH structure to perform ascending control information UCI sends.
12. according to the PUCCH transmitting system of junction network described in claim 11, it is characterized in that, on relay station, the end position of fixed configurations PUCCH is Single Carrier-Frequency Division multiple access SC-FDMA symbol e, and as the up backhaul subframe employing general cyclic prefix CP of described relay station, e≤12; As the up backhaul subframe employing expansion CP of described relay station, e≤10.
13. according to the PUCCH transmitting system of junction network described in claim 12, and it is characterized in that, described relay station is further used for, and up backhaul subframe adopts the PUCCH structure of shortening to carry UCI.
14. according to the PUCCH transmitting system of junction network described in claim 11, and it is characterized in that, described network equipment is further used for, and by sending the configuration information of PUCCH end position directly to relay station, indicates the end position of described relay station PUCCH;
Or, the structure configuration information adopted by the notice PUCCH direct or implicit to relay station, the indirectly end position of the described relay station PUCCH of instruction;
Or, by sending the configuration information of up backhaul subframe to relay station, the end position of the described relay station PUCCH of instruction indirectly.
15. according to the PUCCH transmitting system of junction network described in claim 14, and it is characterized in that, the end position of described relay station PUCCH is SC-FDMA symbol e, and meets sx≤e≤n;
Wherein, sx is the up backhaul subframe of relay station one of them SC-FDMA symbol for up transmitting, and 0≤sx≤n, n is the up backhaul subframe of relay station last SC-FDMA symbol for up transmitting, when up backhaul subframe adopts common CP, and n≤13; When up backhaul subframe adopts expansion CP, n≤11.
16. according to claims 14 or 15 the PUCCH transmitting system of junction network, it is characterized in that, described network equipment is further used for, in described structure configuration information, indicate relay station PUCCH to adopt complete PUCCH structure, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13, and when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11;
Or, in described structure configuration information, indicate relay station PUCCH to adopt the PUCCH structure shortened, namely when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12, when the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10.
17. according to the PUCCH transmitting system of junction network described in claim 16, it is characterized in that, described network equipment is further used for, be uplink measurement reference signal SRS by collocating uplink backhaul subframe, implicit notice relay station PUCCH adopts the PUCCH structure of shortening in described up backhaul subframe.
18. according to claims 14 or 15 the PUCCH transmitting system of junction network, it is characterized in that, the configuration information of described up backhaul subframe comprises: relay station up backhaul subframe pattern configuration information.
19. according to the PUCCH transmitting system of junction network described in claim 18, it is characterized in that, if adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 12; When the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 10;
If adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, then, when the up backhaul subframe of relay station adopts common CP, the end position of PUCCH is SC-FDMA symbol 13; When the up backhaul subframe of relay station adopts expansion CP, the end position of PUCCH is SC-FDMA symbol 11.
20. according to the PUCCH transmitting system of junction network described in claim 19, it is characterized in that, described relay station is further used for, when adjacent subframe is relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, up backhaul subframe adopt the PUCCH structure of shortening to carry UCI;
When adjacent subframe is not relay station multi-upstream access subframe after the up backhaul subframe of configuration information instruction relay station of described up backhaul subframe, up backhaul subframe adopt complete PUCCH structure to carry UCI.
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| CN109152003B (en) * | 2017-06-15 | 2021-05-14 | 华为技术有限公司 | Method and device for sending or receiving control information |
| US10945226B2 (en) | 2017-10-09 | 2021-03-09 | Qualcomm Incorporated | Timing and frame structure in an integrated access backhaul (IAB) network |
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