CN100433924C - Implement method of uplink/downlink control channel - Google Patents
Implement method of uplink/downlink control channel Download PDFInfo
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- CN100433924C CN100433924C CNB2005101166791A CN200510116679A CN100433924C CN 100433924 C CN100433924 C CN 100433924C CN B2005101166791 A CNB2005101166791 A CN B2005101166791A CN 200510116679 A CN200510116679 A CN 200510116679A CN 100433924 C CN100433924 C CN 100433924C
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Abstract
This invention discloses a method for realizing uplink and downlink control channel, which distributes a first shared resource tank, a second and a third shared resource tank for the up control channel,and the up control channel of a user uses said first shared resource tank to transmit downlink data, the resource distribution of the up control channel of a user is corresponding to the distribution state of its downlink shared control channel and when a user sends uplink data, its uplink control channel uses said second shared resource tank and transmits them so as to multiplex the uplink control channel of a user with its uplink data channel, when a user does not transmit uplink data and downlink data, its uplink control channel uses said third shared resource tank and carries with user ID information. The realization method for the downlink control channel is similar to the uplink control channel.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to the implementation method of ascending control channel and down control channel.
Background technology
Insert (High Speed Downlink Packet Access in high-speed downlink packet, HSDPA) in the system, in order to realize the functional characteristic of HSDPA, three new channels in physical layer specification, have been introduced: high-speed downlink shared channel (High Speed Downlink Shared Channel, HS-DSCH), High-Speed Shared Control Channel (Shared Control Channel for HS-DSCH, HS-SCCH) and up link high-speed dedicated control channel (Dedicated Physical Control Channel (uplink) forHS-DSCH, HS-DPCCH).HS-DSCH carries downlink user data; The physical layer control signaling that is used for decoding on the HS-SCCH carrying HS-DSCH; HS-DPCCH carries uplink control signaling, be the automatic repeat requests of the required mixing of physical layer retransmission (Hybrid Automatic Repeat Request, HARQ) acknowledge message, comprise affirmation/do not confirm (ACK/NACK) message, the uplink control signaling of HS-DPCCH carrying also comprises downlink quality indication information (Channel QualityIndication, CQI), this quality indication (CQI) information in the scheduler of base station (Node B) with deciding to which terminal transmission and transmission rate what are.ACK/NACK message and CQI transmission of Information all are to adopt the mode of dedicated channel among the HSDPA, transmit these upstream control signalings for each user specifies special-purpose code channel that is:.
Since the nineties in 20th century, multi-transceiver technology becomes the hot spot technology of broadband wireless communications, its basic thought is that a bandwidth carrier is divided into a plurality of subcarriers, and on a plurality of subcarriers, transmit data simultaneously, in the middle of the system applies of majority, the width of subcarrier is less than the relevant width of channel, like this on frequency-selective channel, decline on each subcarrier is a flat fading, so just reduced intersymbol interference, and do not need complicated channel equalization, be fit to the transmission of high-speed data.Multi-transceiver technology has various ways, OFDM (Orthogonal Frquency Division Multiplexing, OFDM) technology is more representational a kind of technology in the multi-transceiver technology, this technology is in frequency domain given channel to be divided into many orthogonal sub-channels, and allow subcarrier spectrum to overlap, as long as satisfy between subcarrier mutually orthogonally, just can isolate data-signal from the subcarrier of aliasing.
In ofdm system, distinguish different user with running time-frequency resource.As shown in Figure 1, system divides goes out some discrete time and is used for the CQI message transmission.The mode of the CQI Channel Transmission CQI information of the special-purpose sharing mode of this employing, the required running time-frequency resource expense of transmission CQI information will be very big.
Prior art also provides a kind of CQI transmission of Information mode, and as shown in Figure 2, that is: the CQI signaling with all users all sends together with time division multiplexing mode and upstream data, and CQI information takies identical frequency band with upstream data information.In this CQI information transmission mode, must be same user owing to take the CQI feedback information and the upstream data of same frequency band, therefore for the user that upstream data is arranged, this user's CQI information is easy to be in the same place with its upstream data time division multiplexing.Although for this part user, need not send out pilot tone and user totem information separately; But the user for there not being upstream data to transmit not only needs to send out pilot tone and user totem information for its CQI channel separately, and this part idle running time-frequency resource can not use by other users, causes the serious wasting of resources.
In the HSDPA system, distinguish different user with orthogonal code; If still adopt dedicated mode CQI channel (that is: transmitting its CQI information for each user in the system reserves special-purpose running time-frequency resource), add the shared resource of pilot tone of each CQI channel, then transmitting the required running time-frequency resource expense of CQI information will be very big, if adopt the CQI channel of sharing mode, then need inevitably again to transmit the CQI channel that the UE id information is used to discern different user simultaneously, this can increase signaling consumption undoubtedly.Therefore wishing to have a kind of rational CQI channel design method, saves running time-frequency resource as much as possible to satisfy system requirements.
Summary of the invention
The invention provides a kind of up/implementation method of down control channel, in order to solve the problem that up/down control channel in the prior art need take more transfer resource.
Ascending control channel implementation method provided by the invention comprises: for ascending control channel distributes the first shared resource pond, the second shared resource pond and the 3rd shared resource pond;
A, user to there being downlink data to send, its ascending control channel uses the described first shared resource pond to send, and the resource allocation of each user's ascending control channel is corresponding with the resource allocation situation of this user's descending shared control signal channel;
B, user to there being upstream data to send, its ascending control channel uses the described second shared resource pond to send, and its ascending control channel and user's uplink data channels is multiplexing;
C, for the user who does not have upstream data and downlink data to send, its ascending control channel uses described the 3rd shared resource pond to send, and carries user totem information.
According to said method of the present invention, the user that the downlink data transmission is arranged again for existing upstream data, its ascending control channel uses the described first shared resource pond to send, and the resource allocation of each user's ascending control channel is corresponding with the resource allocation situation of this user's descending shared control signal channel.
According to said method of the present invention, for the user that existing upstream data has downlink data to send again, its ascending control channel uses the described second shared resource pond to send, and each user's ascending control channel and user's uplink data channels are multiplexing.
Described ascending control channel and user's uplink data channels adopts time division multiplexing, frequency division multiplexing or code division multiplexing, the pilot tone of shared described uplink data channels.
Resource in the described first shared resource pond, the second shared resource pond and the 3rd shared resource pond is mutually orthogonal.
Described ascending control channel is link-quality indication CQI channel and/or ack channel.
Described CQI channel and ack channel adopt time division multiplexing, frequency division multiplexing or code division multiplexing, common pilot.
Described A or/and the implementation method among the B in the transmission cycle TTI that CQI information and/or ACK feedback information are arranged, carry out.
The present invention also provides a kind of down control channel implementation method, comprising: for down control channel distributes the first shared resource pond or/and the second shared resource pond;
To the user who has upstream data to send, its down control channel uses the described first shared resource pond to send, and the resource allocation of each user's down control channel is corresponding with the resource allocation situation of this user's up shared control channel; Or/and
To the user who has downlink data to send, its down control channel uses the described second shared resource pond to send, and down control channel and downstream data channel is multiplexing.
According to said method of the present invention, be down control channel the 3rd shared resource pond of reallocating;
For the user who does not have upstream data and downlink data to send, its down control channel uses described the 3rd shared resource pond to send, and carries user totem information.
According to said method of the present invention, the user that the downlink data transmission is arranged again for existing upstream data, use the described first shared resource pond to send down control channel, the resource allocation of each user's down control channel is corresponding with the resource allocation situation of this user's up shared control channel.
According to said method of the present invention, the user for existing upstream data has downlink data to send again uses the described second shared resource pond to send down control channel, and each user's down control channel and user's downstream data channel are multiplexing.
Described down control channel and downstream data channel adopt time division multiplexing, frequency division multiplexing or code division multiplexing, the pilot tone of shared described downstream data channel.
According to said method of the present invention, the resource in the described first shared resource pond, the second shared resource pond and the 3rd shared resource pond is mutually orthogonal.
Beneficial effect of the present invention is as follows:
(1) for ascending control channel: the user of the present invention to there being downlink data to send, its ascending control channel is sent in a shared resource pond, the resource allocation of ascending control channel is corresponding with the resource allocation situation of this user's descending shared control signal channel, and can with uplink ACK channel multiplexing and common pilot; User for there being upstream data to send is multiplexed into its ascending control channel on the uplink data channels, with uplink data channels common pilot resource, thereby has saved uplink channel resources, command transmitting amount and pilot resources expense.
(2) for down control channel: the user of the present invention to there being upstream data to send, its down control channel is sent in a shared resource pond, the resource allocation of down control channel is corresponding with the resource allocation situation of this user's up shared control channel, and can share pilot resources with descending ack channel; User for there being downlink data to send is multiplexed into its down control channel on the downstream data channel, and with downstream data channel common pilot resource, thereby saved down channel resources, command transmitting amount and pilot resources expense.
Description of drawings
Fig. 1 is by CQI shared channel transmission CQI information schematic diagram in the prior art;
Fig. 2 is the schematic diagram that passes through time division multiplexing CQI information in upstream data in the prior art;
Fig. 3 is a CQI message transmission schematic diagram of the present invention.
Embodiment
Be example with ascending control channel CQI channel below, the inventive method is described in detail.
In the down link self adaption process, for unique user, when only in previous TTI, having downlink data to send, in current TTI, just can send uplink ACK/nack message, i.e. all corresponding uplink ACK channel (ACK CH) of each downstream data channel.
Because the signaling length of all users' ACK/NACK all fix and is equated in the system, and ack channel do not participate in dispatching, so the shared time equal and opposite in direction of each user's ack channel and can be regularly arranged; But because descending shared data channel determines according to channel condition taking by base station dispatcher of running time-frequency resource, the diversity of channel condition and real-time change and each amount of user data different cause the pole of figure of the time that base station assigns gives each user's downstream data channel irregular, and each TTI can change, and is difficult to find uplink ACK channel and the downstream data channel fixed relationship on time-frequency resource allocating.
And descending shared data channel is by descending shared control signal channel (SCCH) appointment, generally, each user's descending shared control signaling length also all is fixing and equates in the system, descending SCCH channel does not participate in scheduling yet, therefore the size of the time of each user's descending SCCH channel occupancy also equates and can be regularly arranged, therefore descending SCCH channel and the shared time of uplink ACK channel can be mapped, each user's descending SCCH channel can be inferred the resource allocation conditions of its uplink ACK channel according to the resource allocation conditions of the descending SCCH channel of this user to uplink ACK channel that should the user.During base station demodulation ack channel, only need occupation condition, distinguish the ack channel of different user according to each user on the descending SCCH channel.Utilize this corresponding relation, for the ack channel that adopts sharing mode (ack channel of different user is shared one section running time-frequency resource), then can save the user totem information on the ack channel.
The present invention utilizes the corresponding relation (be actually contact by ack channel and descending SCCH interchannel realize) of above-mentioned ack channel and downstream data channel, to and the implementation method of the strict corresponding CQI channel of not sum descending shared control signal channel be described in detail.
Suppose that every several (or one) Transmission Time Intervals (TTI) all users will report CQI information one time to the base station, and the feedback cycle of CQI is controlled for the base station.In the TTI that the CQI feedback information is arranged, supreme/downlink data transmission is arranged according to the user, and (as not adding specified otherwise, the user has the downlink data transmission all to refer to have in previous TTI downlink data to send later on; The user has the upstream data transmission all to refer to have in current TTI upstream data to send), the user can be divided into following four classes: the user of downlink data is only arranged, only have the user of upstream data, existing downlink data that the user of upstream data is arranged again and both do not had the user that downlink data does not have upstream data yet.Therefore, the design of CQI channel can be divided into following four kinds of situations realization according to user types:
Situation one: have downlink data to send the user who does not still have upstream data to send to those its CQI channel is sent in a shared resource pond, the resource allocation of CQI channel is corresponding with the resource allocation conditions of this user's descending shared control signal channel, can save the transmission of user ID like this, but still need emission pilot tone separately.In order further to save pilot-frequency expense, can take following measure: the user for there being downlink data to send each self-corresponding uplink ACK channel is generally arranged, so this part user also can be called as the user that the uplink ACK channel is arranged in the current TTI; Can send these users' CQI channel so that time division multiplexing, frequency division multiplexing or code division multiplexing mode are multiplexing with its uplink ACK channel this moment together.Like this, the base station can be judged each user's CQI channel according to each user's ack channel; And each user's ack channel as mentioned above, can be distinguished according to the occupation condition of each user on the descending SCCH channel.Therefore, can on the CQI channel, can save the transmission of user ID, and the CQI channel can with ack channel common pilot resource, thereby further save pilot-frequency expense.This in fact still belongs to the mode of CQI channel and descending shared control signal channel correspondence, and the corresponding relation of CQI channel and downstream data channel is realized indirectly by ack channel only at this moment.Therefore can think that the mode of CQI channel and ack channel multiplexing transmission is a special case of the corresponding transmission with downstream data channel of CQI channel.
Situation two: those are not had the user that downlink data sends still has upstream data to send, because CQI information can not such as previously described and corresponding transmission of downstream data channel.In this case, the multiplexing transmission together of mode that its CQI channel can be divided with time-division, frequency division or sign indicating number with its uplink data channels, CQI channel and uplink data channels common pilot resource, the base station is according to user's the uplink data channels and the multiplex mode of employing, can intercept out CQI information easily, not be used on this CQI channel and send user totem information.
Situation three: those existing downlink datas are sent the user who has upstream data to send again, and its CQI channel information has following two kinds of send modes:
(a) CQI information can send with downstream data channel is corresponding;
(b) CQI information also can send with upstream data is multiplexing together.
To this class user, can (b) choose one the dual mode from (a) according to the system requirements of reality.
Situation four: those are not only had downlink data but also do not have the user that upstream data sends, and its CQI information both can't send with downstream data channel is corresponding, also can't follow upstream data and send, and can only reserve one section running time-frequency resource for it separately and use for the CQI channel this moment.
For convenience of explanation, we define, and the used resource corresponding with downstream data channel of transmission CQI information is the first shared resource pond in situation one and the situation three (a); In situation two and the situation three (b) transmission CQI information used with the multiplexing resource together of uplink data channels be the second shared resource pond; The used independent resource of transmission CQI information is the 3rd shared resource pond in the situation four.
All corresponding relations of three kinds of shared resource ponds and four kinds of users are shown in following table one.What " √ " was represented in the table just in time is the correspondence combination described in the situation one to four.The correspondence combination that " zero " expression also might exist except that situation one to four in the table, but these correspondences make up or are not optimum, or in existing system, used, therefore do not consider.The correspondence combination that " * " expression can not exist in the table.
Table one:
| The user that downlink data is only arranged | The user that upstream data is only arranged | The existing descending user that upstream data is arranged again | Both there be not the descending user who does not yet have upstream data | |
| The first shared resource pond | √ | × | √ | × |
| The second shared resource pond | × | √ | √ | × |
| The 3rd shared resource pond | ○ | ○ | ○ | √ |
Here only be concerned about and situation one to four corresponding those combinations.Above-mentioned four kinds of situations can be summarized as follows:
Situation one: the user of downlink data is only arranged, and its CQI information is transmitted in the first shared resource pond;
Situation two: the user of upstream data is only arranged, and its CQI information is transmitted in the second shared resource pond;
Situation three: existing downlink data has the user of upstream data again, and its CQI information both can also can be transmitted in the second shared resource pond in the transmission of the first shared resource pond;
Situation four: both do not had the user that downlink data does not have upstream data yet, its CQI information can only be transmitted in the 3rd shared resource pond.
In concrete the application, above-mentioned four kinds of situations can be distinguished use separately, also can be used in combination in any way.For example:
Can only adopt the method for describing in the situation one, to the user who has only downlink data to send, its ascending control information (as CQI information) is in the transmission of the first shared resource pond, and the CQI channel sends with downstream data channel is corresponding, and all the other users' ascending control channel adopts the processing mode of prior art.
Also can only adopt the method for describing in the situation two, for those users who has only upstream data to send, its CQI information can be transmitted in the second shared resource pond, the multiplexing transmission together of mode that the CQI channel divides with time-division, frequency division or sign indicating number with its uplink data channels, all the other users' ascending control channel adopts the processing mode of prior art.
Also can only adopt the method described in the situation three (a), to existing downlink data, the user of upstream data be arranged again, its CQI information is transmitted in the first shared resource pond, all the other users' ascending control channel adopts the processing mode of prior art.
Also can only adopt the method described in the situation three (b), to existing downlink data, the user of upstream data be arranged again, its CQI information is transmitted in the second shared resource pond, all the other users' ascending control channel adopts the processing mode of prior art.
Perhaps adopt the method described in situation one and the situation three (a) simultaneously, to the user who has downlink data to send, no matter whether it has upstream data to send, all its ascending control information (as CQI information) is transmitted in the first shared resource pond, all the other users' ascending control channel adopts the processing mode of prior art.
Perhaps adopt the method described in situation two and the situation three (b) simultaneously, for those users who has upstream data to send, no matter whether it has downlink data to send, all its ascending control information (as CQI information) is transmitted in the second shared resource pond, all the other users' ascending control channel adopts the processing mode of prior art.
Perhaps adopt the method described in situation three (a) and the situation three (b) simultaneously, send the user who has upstream data to send again for those existing downlink datas, can adopt situation three (a) to a part of user wherein, another part user adopts situation three (b), at each user, situation (a) and situation three (b) can also be used alternatingly; All the other users' ascending control channel adopts the processing mode of prior art.
Perhaps adopt the method described in situation one, situation two and the situation three (a) simultaneously, to the user who has downlink data to send, no matter whether it has upstream data, all its CQI information is sent in the first shared resource pond; But those are not had user that downlink data sends that have upstream data to send, its CQI information is sent in the second shared resource pond; All the other users' ascending control channel adopts the processing mode of prior art.
Perhaps adopt the method described in situation one, situation two and the situation three (b) simultaneously, to the user who has upstream data to send, no matter whether it has downlink data, all its CQI information is sent in the second shared resource pond; But those are not had user that upstream data sends that have downlink data to send, its CQI information is sent in the first shared resource pond; All the other users' ascending control channel adopts the processing mode of prior art.
Perhaps adopt the method described in situation one, situation two, situation three (a) and the situation four simultaneously, to the user who has downlink data to send, no matter whether it has upstream data, all its CQI information is sent in the first shared resource pond; But those are not had user that downlink data sends that have upstream data to send, its CQI information is sent in the second shared resource pond; Both do not had downlink data not have the user of upstream data to those yet, its CQI information had been sent in the 3rd shared resource pond; All the other users' ascending control channel adopts the processing mode of prior art.
Perhaps adopt the method described in situation one, situation two, situation three (b) and the situation four simultaneously, to the user who has upstream data to send, no matter whether it has downlink data, all its CQI information is sent in the second shared resource pond; But those are not had user that upstream data sends that have downlink data to send, its CQI information is sent in the first shared resource pond; Both do not had downlink data not have the user of upstream data to those yet, its CQI information had been sent in the 3rd shared resource pond; All the other users' ascending control channel adopts the processing mode of prior art.
Can also adopt situation one and situation two simultaneously; Situation one and situation three (b); Situation two and situation three (a); Situation one, situation two and situation four; Situation one, situation three (a) and situation four; Situation two, situation three (b) and situation four; Situation one, situation three (b) and situation four; Situation two, situation three (a) and the situation fourth class etc. are enumerated here no longer one by one.
As previously mentioned, the feedback cycle of CQI is one or several TTI, and the feedback cycle of CQI can slowly change under the control of base station.For those TTI of CQI feedback information is arranged, it is that the user distributes the CQI channel resource that such scheme just can be adopted in the base station; Those are not had the TTI of CQI feedback information, and the base station need not to carry out the CQI channel resource allocation for the user.Need to prove, participate in the user of scheduling, on no matter whether it has/downlink data information, all need regularly, so that can obtain the chance that arrived by base station scheduling to its CQI information of base station feedback in the system each.
The implementation of above-mentioned CQI channel as shown in Figure 3, two the up TTI that drawn among Fig. 3, and suppose that all users' ack channel all adopts and the corresponding transmission means of descending shared control signal channel.Among the figure:
CQI-1 is illustrated in the CQI information of transmitting in the first shared resource pond, when the user only has downlink data to send, with the CQI channel with the corresponding transmission of downstream data channel;
CQI-2 is illustrated in the CQI information of transmitting in the second shared resource pond, when the user only has upstream data to send, with CQI channel and uplink data channels multiplexing transmission CQI information;
When the existing downlink data transmission of user, when having upstream data to send again, CQI information both can be transmitted in the first shared resource pond, also can transmit in the second shared resource pond; That is: CQI information can be transmitted in the mode of CQI-1, also can transmit in the mode of CQI-2, can get wherein a kind of mode according to requirement in practical systems, but also dual mode is used alternatingly.
CQI-3 is illustrated in the CQI information of transmitting in the 3rd shared resource pond, when the user had not both had upstream data not have downlink data to send yet, distributes the running time-frequency resource transmission CQI information of sharing separately for its CQI channel.
The TTI on Fig. 3 left side, expression does not have the TTI of CQI feedback information, does not need to distribute uplink control channel resource in this TTI.In this TTI, transmit user 1, user 2 and user's 3 upstream data information simultaneously by the mode of frequency division multiplexing.
The TTI on Fig. 3 the right represents to have the TTI of CQI feedback information, adopts said method of the present invention to carry out the transmission of ascending control channel signaling in this TTI.In this TTI, transmit user 1 and user's 4 upstream data information simultaneously by the mode of frequency division multiplexing, user 2 and user 3 do not have upstream data information in this TTI; Suppose that simultaneously user 2 has downlink data to send in descending TTI; And user 3 had not both had the upstream data transmission not have downlink data to send yet.Owing to also need to transmit CQI information in this TTI, according to said method provided by the invention, user 1 and user 4 have upstream data to send, therefore, can send (promptly adopting the CQI-2 mode to transmit CQI information) with the mode that its CQI channel and its uplink data channels divide with time-division, frequency division or sign indicating number is multiplexing together.For user 2 and user 3,, therefore can not adopt the CQI-2 mode to transmit CQI information because they do not have upstream data to send.For user 2, because downlink data information is arranged, therefore can be with the corresponding transmission of its CQI channel (promptly transmitting CQI information) in the CQI-1 mode with downstream data channel, expression is one of them special case here, that is: CQI channel and uplink ACK channel multiplexing transmission CQI information.For user 3, can only distribute the running time-frequency resource transmission CQI information of sharing (promptly transmitting CQI information) separately for its CQI channel in the CQI-3 mode.
Be that example illustrates with the CQI channel all above, in fact, ascending control channel not only comprises the CQI channel, also comprises all multichannels such as uplink ACK channel.First, second that defines for the CQI channel in the preamble and the 3rd shared resource pond and four kinds of transmission situations and various combination thereof, be equally applicable to other various ascending control channels, just need use selectively according to the concrete characteristics of every kind of ascending control channel.
For example: the uplink ACK channel occupancy of the corresponding transmission of previously described and descending shared control signal channel be exactly the first shared resource pond.What notice the uplink ACK channel is the response message of downstream data channel, as long as therefore there is the user of uplink ACK channel must have downlink data to send at previous TTI, thereby the multiplexing scheme of ack channel is just only existed situation one and situation three.
Situation one: have downlink data to send the user who does not still have upstream data to send to those its uplink ACK channel is transmitted in the first shared resource pond, the resource allocation of uplink ACK channel is corresponding with the resource allocation conditions of this user's descending shared control signal channel, can save the transmission of user ID like this, but still need emission pilot tone separately.The uplink ACK multiplexing of channel scheme that this paper beginning that Here it is is mentioned.
Situation three: those existing downlink datas are sent the user who has upstream data to send again, and its uplink ACK channel both can transmit in the first shared resource pond, also can transmit in the second shared resource pond; That is: the uplink ACK channel both can also can transmit with its uplink data channels is multiplexing with the corresponding transmission of downstream data channel together.
Need to prove, for different types of ascending control channel, for example CQI channel and uplink ACK channel, they can transmit in identical resource pool, also can transmit in different resource pools.If in identical resource pool, send, CQI channel and uplink ACK channel multiplexing can be sent also common pilot together, also the two can be sent and sends separately separately pilot tone respectively.At situation one and situation three, be described below respectively:
For the user who has only downlink data, its CQI channel and uplink ACK channel all can only send in the first shared resource pond, and the two can multiplexingly send and common pilot together, also can send and send separately separately pilot tone respectively.
For existing downlink data the user of upstream data is arranged again, its CQI channel and uplink ACK channel all can be sent in the first shared resource pond, the two is multiplexing to send together or sends respectively; Also its CQI channel and uplink ACK channel all can be sent the two multiplexing together transmission or transmission respectively in the second shared resource pond; Also its CQI channel can be sent in the first shared resource pond, and the uplink ACK channel sends in the second shared resource pond; Its CQI channel can also be sent in the second shared resource pond, and the uplink ACK channel sends in the first shared resource pond.
In like manner, also can adopt said method to realize for down control channel, for example:
User to there being upstream data to send sends down control channel in a shared resource pond, the resource allocation of down control channel is corresponding with the resource allocation conditions of this user's up shared control channel;
To the user who has downlink data to send, that down control channel and downstream data channel is multiplexing;
For the user who does not have upstream data and downlink data to send, for its down control channel distributes independent shared resource in addition.
The base station will issue Downlink Control Information to all users, and the transmission cycle of this control information is controlled for the base station.In the TTI that has described Downlink Control Information to send, the design of this down control channel is as follows:
For those users who has downlink data to send, the multiplexing transmission together of mode that its down control channel can be divided with time-division, frequency division or sign indicating number with its downstream data channel, down control channel and downstream data channel common pilot resource, the user can be known descending control signaling according to the multiplex mode of downstream data channel and employing.
To those users who has upstream data to send, down control channel is sent in a shared resource pond, the resource allocation of down control channel is corresponding with the resource allocation conditions of this user's up shared control channel; Owing to send the user of data each self-corresponding descending ack channel is arranged, can send these users' down control channel so that time division multiplexing, frequency division multiplexing or code division multiplexing mode are multiplexing with its descending ack channel this moment together, and the pilot tone of shared descending ack channel.
Those not only there is not downlink data but also do not have the user that upstream data sends, its down control channel information both can't have been followed downlink data and sent, also can't the uplink data channels correspondence send, can only be separately that those users' down control channel is reserved one section running time-frequency resource this moment.
In the above-mentioned situation, when the existing downlink data of user has upstream data to send again, can adopt down control channel and the corresponding send mode of uplink data channels; Also can adopt down control channel and downstream data channel are multiplexed into together send mode.
In sum, for ascending control channel: to the user who has downlink data to send, with the corresponding transmission with downstream data channel of ascending control channel, the transmission of having saved user totem information reaches the purpose of saving signaling amount; And common pilot reaches the purpose of saving pilot resources.For the user who has upstream data to send, adopt the mode that ascending control channel is sent together along with uplink data channels, and common pilot, save the signaling consumption and the pilot-frequency expense of user totem information.
For down control channel: the user to there being downlink data to send is multiplexed into its down control channel on the downstream data channel, and shares pilot resources with downstream data channel; For the user who has upstream data to send, with the corresponding transmission with uplink data channels of its down control channel, the transmission of having saved user totem information reaches the purpose of saving signaling amount.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (14)
1, a kind of ascending control channel implementation method is characterized in that comprising: for ascending control channel distributes the first shared resource pond, the second shared resource pond and the 3rd shared resource pond;
A, user to there being downlink data to send, its ascending control channel uses the described first shared resource pond to send, and the resource allocation of each user's ascending control channel is corresponding with the resource allocation situation of this user's descending shared control signal channel;
B, user to there being upstream data to send, its ascending control channel uses the described second shared resource pond to send, and its ascending control channel and user's uplink data channels is multiplexing;
C, for the user who does not have upstream data and downlink data to send, its ascending control channel uses described the 3rd shared resource pond to send, and carries user totem information.
2, the method for claim 1, it is characterized in that, the user that the downlink data transmission is arranged again for existing upstream data, its ascending control channel uses the described first shared resource pond to send, and the resource allocation of each user's ascending control channel is corresponding with the resource allocation situation of this user's descending shared control signal channel.
3, the method for claim 1, it is characterized in that, for the user that existing upstream data has downlink data to send again, its ascending control channel uses the described second shared resource pond to send, and each user's ascending control channel and user's uplink data channels are multiplexing.
4, the method for claim 1 is characterized in that, described ascending control channel and user's uplink data channels adopts time division multiplexing, frequency division multiplexing or code division multiplexing, the pilot tone of shared described uplink data channels.
5, the method for claim 1 is characterized in that, the resource in the described first shared resource pond, the second shared resource pond and the 3rd shared resource pond is mutually orthogonal.
6, the method for claim 1 is characterized in that, described ascending control channel is link-quality indication CQI channel and/or ack channel.
7, method as claimed in claim 6 is characterized in that, described CQI channel and ack channel adopt time division multiplexing, frequency division multiplexing or code division multiplexing, common pilot.
8, method as claimed in claim 6 is characterized in that, described A or/and the implementation method among the B in the transmission cycle TTI that CQI information and/or ACK feedback information are arranged, carry out.
9, a kind of down control channel implementation method is characterized in that comprising: for down control channel distributes the first shared resource pond or/and the second shared resource pond;
To the user who has upstream data to send, its down control channel uses the described first shared resource pond to send, and the resource allocation of each user's down control channel is corresponding with the resource allocation situation of this user's up shared control channel; Or/and
To the user who has downlink data to send, its down control channel uses the described second shared resource pond to send, and down control channel and downstream data channel is multiplexing.
10, method as claimed in claim 9 is characterized in that, is down control channel the 3rd shared resource pond of reallocating;
For the user who does not have upstream data and downlink data to send, its down control channel uses described the 3rd shared resource pond to send, and carries user totem information.
11, method as claimed in claim 9, it is characterized in that, the user that the downlink data transmission is arranged again for existing upstream data, use the described first shared resource pond to send down control channel, the resource allocation of each user's down control channel is corresponding with the resource allocation situation of this user's up shared control channel.
12, method as claimed in claim 9, it is characterized in that, user for existing upstream data has downlink data to send again uses the described second shared resource pond to send down control channel, and each user's down control channel and user's downstream data channel are multiplexing.
13, method as claimed in claim 9 is characterized in that, described down control channel and downstream data channel adopt time division multiplexing, frequency division multiplexing or code division multiplexing, the pilot tone of shared described downstream data channel.
14, method as claimed in claim 10 is characterized in that, the resource in the described first shared resource pond, the second shared resource pond and the 3rd shared resource pond is mutually orthogonal.
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| CN104038998B (en) * | 2006-10-02 | 2017-11-21 | Lg电子株式会社 | Method for carrying out transmission of control signals using efficient multiplexing |
| EP2080302A4 (en) | 2006-10-02 | 2014-04-02 | Lg Electronics Inc | Method for transmitting control signal using efficient multiplexing |
| CN101500312B (en) * | 2008-02-01 | 2011-06-22 | 中兴通讯股份有限公司 | Available resource allocation method |
| KR101537607B1 (en) * | 2008-02-05 | 2015-07-29 | 엘지전자 주식회사 | Method of efficient transmitting a radio channel using a coordination field |
| BRPI0918219B1 (en) * | 2008-09-04 | 2020-11-17 | Sharp Kabushiki Kaisha | base station handset, mobile station handset, communication method of a base station handset and communication method of a mobile station handset |
| CN101404526B (en) * | 2008-11-03 | 2013-05-01 | 中兴通讯股份有限公司 | Descending control information processing method |
| CN102340874B (en) * | 2010-07-26 | 2014-10-22 | 中兴通讯股份有限公司 | Wireless resource distribution method of PUCCH and wireless resource manager |
| CN102316068A (en) * | 2011-09-21 | 2012-01-11 | 中兴通讯股份有限公司 | Transmission method for control signalings and system |
| CN102316070B (en) * | 2011-09-21 | 2017-11-28 | 中兴通讯股份有限公司 | Data transmission method and device, data processing method and device |
| CN110430612B (en) * | 2016-09-19 | 2021-10-29 | 上海朗帛通信技术有限公司 | Method and device for supporting transmission power adjustment in UE and base station |
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