CN100417294C - Distribution method for multicarrier HSDPA control channel and transmitting method of grouped data - Google Patents
Distribution method for multicarrier HSDPA control channel and transmitting method of grouped data Download PDFInfo
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- CN100417294C CN100417294C CNB2005100912037A CN200510091203A CN100417294C CN 100417294 C CN100417294 C CN 100417294C CN B2005100912037 A CNB2005100912037 A CN B2005100912037A CN 200510091203 A CN200510091203 A CN 200510091203A CN 100417294 C CN100417294 C CN 100417294C
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Abstract
The invention relates to a distribution method of multi-carrier HSDPA control signal channel, wherein when the user terminal accesses the network, for processing HSDPA service transmission, the network distributes K to user terminal to detect the ascending and descending control signal channels; in the HSDPA service transmission process, in said distributed control signal channels, selects N to transmit data to control signal channels; and the network distributes one couple of ascending and descending accompany signal channels to each carrier of said control signal channels; M>=N>=1, M is the carrier wave number for sending group number; and each couple of ascending and descending control signal channels transmit the control information of HS-DSCH signal channel relative to the carrier wave; and the network can use one couple of ascending and descending control signal channels of transmission group data to transmit the control signal; said control signal channels transmit the control signal of HS-DSCH of all carrier waves of said user.
Description
Technical field
The present invention relates to the communications field, relate in particular to HSDPA (high speed downlink packet access) technology, particularly relevant for the distribution of control channel and the group data transmission method of multi-carrier HSDPA.
Background technology
Tenability to the high-speed mobile Packet data service is one of 3G system most important character.The data rate that WCDMA R99 version can provide peak rate to reach 2Mbps, this speed is enough substantially for the existing Packet Service of major part.Yet, to flow and data service such as video, Streaming Media and the download etc. of delaying having relatively high expectations, need system that higher transmission rate and shorter time delay are provided for many.
For this reason, the HSDPA technology is that 3GPP is organized in a kind of technology of introducing in the R5 version.HSDPA not only supports the asymmetric data, services of high speed, and operator's input cost is minimized.It is UMTS (Universal Mobile Telecommunications System: Universal MobileTelecommunications System) more high data rate and more high power capacity an evolution approach stably is provided.The HSDPA technology of R5 version abundant design philosophy and experience with reference to CDMA20001X EV-DO, increase a high speed shared channels (HS-DSCH) newly, HS-DSCH makes resources such as through-put power, PN sign indicating number can unify to utilize, and according to user's actual conditions dynamic assignment, thereby improved resource utilization.
In the transmission course of the single carrier HSDPA of Release 5 standards, when a user terminal first behind the access network, network side distributes a pair of up-downgoing DPCH channel for it, and needs the many to HS-SCCH (descending shared control signal channel) and HS-SICH channel (up shared control channel) of supervision.We are called up-downgoing with this a pair of up-downgoing DPCH channel and follow channel.Network side adopts the HS-DSCH channel before user terminal sends grouped data, at first a HS-SCCH channel by wherein sends corresponding control information to user terminal, the channel resource that takies such as the grouped data that issues, modulation system etc., make user terminal can correctly receive the data that the HS-DSCH channel sends, and stress to pass data by the HS-SICH informing network.That is: the HS-SCCH channel is positioned at down link, is mainly used in transmission to the necessary control information of HS-DSCH channel-decoding.The HS-SICH channel is positioned at up link, is used to transmit necessary control information, mainly is the feedback information with downlink quality of replying to transmission grouping.
Up-downgoing follows channel to be used to transmit power control information, synchronizing information, high-level signaling and data answering message, also can be used for the transmission of data.In fact, it mainly is the power control and the Synchronization Control message of the high-rise control of transmission signaling, high-rise response message and initialization HS-SCCH and HS-SICH channel that channel is followed in up-downgoing, the transmitting power that described user side is followed channel can obtain the HS-SCCH channel to adopt by up-downgoing, synchronically controlling information etc., so that user terminal receives the control information of HS-SCCH channel in time by the HS-SICH channel feedback information, and then in time sets up transmission of packet data.
For the performance of further raising system, the applicant has proposed to adopt the multi-carrier HSDPA technology to strengthen the transmittability of Packet data service.But in present R5 standard, only adopt the single carrier transmission mode of HSDPA, the distribution of control channel (channel is followed in HS-SCCH channel, HS-SICH channel and up-downgoing) that is used to control packet data transmission is all fairly simple, can't satisfy the transfer of data of multi-carrier HSDPA.
Summary of the invention
The object of the present invention is to provide a kind of distribution method of multi-carrier HSDPA control channel and the group data transmission method of multi-carrier HSDPA, just consider the transmission control of single carrier wave to solve single carrier HSDPA in the prior art, can't satisfy the technical problem of the demand for control of multi-carrier HSDPA.
In order to address the above problem, the invention provides a kind of distribution method of multi-carrier HSDPA control channel, comprising:
During accessing user terminal to network, network side is that described user terminal distributes the uplink/downlink control channel of K to needing user terminal to monitor;
In carrying out the professional transmission course of HSDPA, network side the K that distributes for user terminal to uplink/downlink control channel in, choose N carries out control information to uplink/downlink control channel transmission, network side distributes a pair of up-downgoing to follow channel on each carrier wave at the described uplink/downlink control channel place of choosing, M 〉=N 〉=1, M is that network side sends the used carrier wave number of grouped data.
Network side is chosen a pair of uplink/downlink control channel for each used carrier wave of transmission data, and each is used to transmit the control information of HS-DSCH channel on the corresponding carrier wave to uplink/downlink control channel.The different ascending control channels of same user terminal are distributed in respectively on the different carrier, and the different down control channels of same user terminal are distributed on the different carrier respectively.All down control channels of same user terminal are distributed on the same carrier wave, all ascending control channels of same user terminal are distributed on the different carrier or all ascending control channels of same user terminal are distributed on the same carrier wave, and all down control channels of same user terminal are distributed on the different carrier.The down control channel of each ascending control channel and pairing is corresponding to a carrier wave, described ascending control channel is used for user terminal and is transmitted in the channel condition on the corresponding carrier wave and receives response message, is used to transmit the Downlink Control Information of relevant HS-DSCH channel resource on the corresponding carrier wave with the down control channel of ascending control channel pairing.
Network side is that all used carrier waves of transmitting grouped data are chosen a pair of uplink/downlink control channel, and this is used to transmit the control information of HS-DSCH channel on all carrier waves to uplink/downlink control channel.Described ascending control channel is used for user terminal and is transmitted in the channel condition on all carrier waves and receives response message, is used to transmit the Downlink Control Information of HS-DSCH channel resource on all carrier waves with the down control channel of described ascending control channel pairing.
Network side is chosen all down control channels of same user terminal and all ascending control channels from same carrier wave, and same user distributes on same carrier wave and has only a pair of up-downgoing to follow channel.
A kind of group data transmission method of multi-carrier HSDPA comprises:
(1) distribution of multi-carrier HSDPA control channel
A: during accessing user terminal to network, network side is that described user terminal distributes the uplink/downlink control channel of K to needing user terminal to monitor;
B: in carrying out the professional transmission course of HSDPA, network side the K that distributes for user terminal to uplink/downlink control channel in, choose N carries out control information to uplink/downlink control channel transmission, network side distributes a pair of up-downgoing to follow channel, M 〉=N 〉=1 on each carrier wave at the described uplink/downlink control channel place of choosing;
(2) in data transmission procedure, the transmission data answering information that network side reports by ascending control channel according to each user terminal and the channel quality indication of user terminal, select the user terminal of service next time and the channel resource and the transformat of employing, and send described control information by down control channel;
(3) network side sends data by the HS-DSCH channel.
Also comprise between step (1) and the step (2): it is that uplink/downlink control channel selected on the same carrier wave is set initial power that described user terminal is followed the control channel of channel by up-downgoing, so that user terminal can be set up communicating by letter of uplink/downlink control channel with network side.
Network side is chosen a pair of uplink/downlink control channel for each used carrier wave of transmission data in the step (1), a pair of up-downgoing is set on each carrier wave at the described uplink/downlink control channel place of choosing follows channel; User terminal obtains described control information by the down control channel of choosing in the monitoring step (1) in the step (2).
Step (1) network side chooses a pair of uplink/downlink control channel for all used carrier waves of transmission data and channel is followed in a pair of up-downgoing; Step (2) user terminal obtains described control information by the down control channel of choosing in the monitoring step (1).
A kind of radio network controller, be used for the distribution of the control channel of multi-carrier HSDPA, it is characterized in that, described radio network controller comprises a control channel distributor, described control channel distributor comprises that uplink/downlink control channel allocation units, uplink/downlink control channel are chosen the unit and channel-assignment unit is followed in up-downgoing, wherein:
Described uplink/downlink control channel allocation units are used to the user terminal of access network to distribute K to uplink/downlink control channel;
Described uplink/downlink control channel is chosen the unit, connect the uplink/downlink control channel allocation units, be used for carrying out the professional transmission course of HSDPA, the K that distributes for user terminal chooses N carries out control information to uplink/downlink control channel transmission in the uplink/downlink control channel;
Channel-assignment unit is followed in up-downgoing: distribute a pair of up-downgoing to follow channel on each carrier wave at the described uplink/downlink control channel place of choosing.
Compared with prior art, the present invention has the following advantages:
The present invention has proposed a kind of control channel distribution method that is applicable to the multi-carrier HSDPA packet data transmission according to the transmission feature of existing HSDPA multicarrier, single carrier HSDPA just considers the transmission control of single carrier wave in the solution prior art, can't satisfy the technical problem of the demand for control of multi-carrier HSDPA.
In addition, the invention allows for the distribution method with the shared control channel of a plurality of carrier waves, make at data transmission procedure, each user terminal only need monitor a control channel, for user terminal, realizes simple.
The invention allows for the distribution method of the corresponding control channel of a kind of each carrier wave, make network side more convenient flexible when allocated channel, be convenient to the configuration of resource.
And, the present invention can be chosen at all HS-SCCH channels and all HS-SICH channels of same user terminal on the same carrier wave, and, having only a pair of up-downgoing to follow channel at same carrier wave for same user distributes, not only simplifying the implementation complexity of terminal but also improved the utilance of resource.
Description of drawings
Fig. 1 is the flow chart of the distribution method of a kind of multi-carrier HSDPA control channel of the present invention;
Fig. 2 is the group data transmission method of a kind of multi-carrier HSDPA of the present invention.
Embodiment
Below in conjunction with accompanying drawing, specify the present invention.
Core of the present invention is: consider that multi-carrier HSDPA compares with single carrier HSDPA, the channel resource that can be used for packet data transmission increases, and the various factors that need consider when therefore utilizing multi-carrier HSDPA to carry out packet data transmission also increases.
Suppose in multi-carrier HSDPA is used, to be used for HS-DSCH channel of the tied composition of HSDPA channel transmitted resource on all carrier waves.During accessing user terminal to network, in order to carry out the professional transmission of HSDPA, network side is the up-downgoing control information that user terminal distributes K that needs are monitored.In carrying out the professional transmission course of HSDPA, network be the K that distributes of described user terminal to supervision control channel centering, choose N carries out HSDPA to uplink/downlink control channel Data Transmission Controlling.Network side is that described user terminal can be chosen a pair of uplink/downlink control channel, and the control information of relevant HS-DSCH channel on all carrier waves is transmitted uplink/downlink control channel by this.In addition, network side is that user terminal also can transmit the control information that is used for the HSDPA transmission on each carrier wave by a pair of uplink/downlink control channel, setting up the corresponding relation of an every pair of uplink/downlink control channel and a carrier wave, is that ascending control channel and the down control channel that is selected on the same carrier wave set initial power by utilizing up-downgoing to follow channel.In the packet data transmission process of multi-carrier HSDPA, user terminal follows channel can set the initial power and the synchronizing information of the uplink/downlink control channel that is selected by up-downgoing, set up with network side and carry out information interaction by the uplink/downlink control channel that is selected, control information by the acquisition of monitoring Downlink Control Information, can receive the grouped data that network side sends, and then realize the packet data transmission of multi-carrier HSDPA.
See also Fig. 1, it is the flow chart of the distribution method of a kind of multi-carrier HSDPA control channel of the present invention.It comprises:
S110: during accessing user terminal to network, network side is that described user terminal distributes the uplink/downlink control channel of K to needing user terminal to monitor.Network side can be according to concrete channel resource allocation K to uplink/downlink control channel.K is determined according to resource situation by system and network side.Network side also can be distributed on the same carrier wave uplink/downlink control channel according to the K that channel resource distributes for same user terminal as much as possible.
S120: in carrying out the professional transmission course of HSDPA, network side the K that distributes for user terminal to uplink/downlink control channel in, choose N carries out control information to uplink/downlink control channel transmission, network side distributes a pair of up-downgoing to follow channel on each carrier wave at the described uplink/downlink control channel place of choosing, M 〉=N 〉=1, M is that network side sends the used carrier wave number of grouped data.
Realize the complexity of packet data transmission in order to simplify user terminal, the present invention can also be chosen at all HS-SCCH channels and all HS-SICH channels of same user terminal on the same carrier wave as much as possible.When all HS-SCCH channels that same user terminal is selected and all HS-SICH channels are on same carrier wave, distribute a pair of up-downgoing to follow channel can for this user terminal, improve the utilance of resource with this.
Below with two embodiment the distribution of multi-carrier HSDPA control channel of the present invention is described.
Embodiment 1
During accessing user terminal to network, network side is that described user terminal distributes K (K＞=1) that uplink/downlink control channel is monitored in order to user terminal.In the professional transmission course of HSDPA, network side be the user terminal of access network from described K to choosing a pair of uplink/downlink control channel (HS-SCCH and HS-SICH) the uplink/downlink control channel, this is used to transmit the control information that is used for packet data transmission on all carrier waves to uplink/downlink control channel.Described control information on the HS-SCCH channel comprises that carrier number and frequency points corresponding, each allocation of carriers give this user's time slot, sign indicating number Taoist monastic name, the modulation system that sends data, the size that sends data block, redundant version number, re-transmission sign and the treatment progress of HAQR and ID number of UE.The control signal that user terminal sends according to the down control channel that receives can correctly receive the packet switched data that network side sends.Described control information on the HS-SICH channel comprises channel condition information and the receiving block data response message of user terminal to each carrier wave that is used for transmitting grouped data of network side transmission.
At the beginning of the accessing user terminal to network side, it is some to HS-SCCH channel and HS-SICH channel that network side distributes for same user terminal usually.In addition, channel is followed in the up-downgoing of distributing for this user terminal, also is positioned on the same carrier wave.Adopt the advantage of the shared control channel method of a plurality of carrier waves to be: the HS-SCCH channel that each user terminal need monitor is less, realizes comparatively simple for terminal.
Embodiment two
In the professional transmission course of HSDPA, set up the corresponding relation of each carrier wave and a pair of uplink/downlink control channel (HS-SCCH and HS-SICH) that is selected.This can be positioned on the corresponding carrier wave uplink/downlink control channel, also can not be positioned on the corresponding carrier wave.And the down control channel of ascending control channel and pairing can be positioned on the same carrier wave, also can be positioned on the different carrier.To be user terminal transmit by this of this carrier wave correspondence the control information that is used for the HSDPA transmission on each carrier wave network side to uplink/downlink control channel, is that ascending control channel, down control channel on the same carrier wave set initial power by utilizing up-downgoing to follow channel.That is, in the multi-carrier transmission process, network side carries out packet data transmission with L carrier wave, then network side just with L to corresponding L the carrier wave of uplink/downlink control channel, each transmits on the carrier wave control information about HS-DSCH to the up-downgoing control information.(the individual HS-SCCH channel of K＞=L), acquisition can access the necessary control information of grouped data to user terminal monitoring K.Described necessary control information comprises: the frequency of carrier wave, this allocation of carriers are given this user's time slot, sign indicating number Taoist monastic name, the modulation system that sends data, the size that sends data block, redundant version number, re-transmission sign and the treatment progress of HAQR and ID number of UE.Corresponding HS-SICH channel sends the ascending control information of this carrier wave, and control information comprises the channel condition of this carrier wave and the reception response message of grouped data.
The HS-SCCH channel that all of user terminal are selected can transmit a control information that the packet data transmission on the carrier wave is required respectively on same carrier wave.All HS-SCCH channels of user terminal also can be chosen on the different carrier, such as, the required control information of packet data transmission on this carrier wave of HS-SCCH Channel Transmission on each carrier wave, perhaps, several HS-SCCH are transmitting the required control information of packet data transmission on the different carrier respectively on a carrier wave.
Network side is distributed on the different carrier for the different ascending control channels of same user terminal respectively, be distributed on the different carrier for the different down control channels of same user terminal respectively, the uplink/downlink control channel of pairing can also can be positioned on the different carrier on same carrier wave.
In addition, network side is distributed on the same carrier wave for all down control channels of same user terminal, all ascending control channels of same user terminal are distributed on the different carrier or, network side is distributed on the same carrier wave for all ascending control channels of same user terminal, is distributed on the different carrier for all down control channels of same user terminal.
Also have, K the HS-SCCH channel that distributes to user terminal can be distributed on the same carrier wave as much as possible.But, for the implementation complexity of simplifying user terminal with improve the utilance of resource, usually with same user's HS-SICH channel allocation on same carrier wave, with same user's HS-SCCH channel allocation on same carrier wave.That is to say, in the scope that channel resource allows, the HS-SICH channel, HS-SCCH channel allocation that can give same user on same carrier wave, and, distribute a pair of up-downgoing to follow channel on same carrier wave, for described user terminal.
But, for the implementation complexity of simplifying user terminal with improve the utilance of resource, the HS-SICH channel with same user is chosen on the same carrier wave usually, and same user's HS-SCCH channel is chosen on the same carrier wave.That is to say,, be chosen on the same carrier wave for same user's HS-SICH channel, HS-SCCH channel if in the scope that channel resource allows, and, distribute a pair of up-downgoing to follow channel on same carrier wave, for described user terminal.
If HS-SCCH channel that user terminal is all and HS-SICH channel are chosen on the same carrier wave, then for this user distribute to follow the DPCH channel to have only a pair of, otherwise, if K distributes on M carrier wave HS-SCCH channel and HS-SICH channel, then need branch M to following the DPCH channel, the corresponding carrier wave of each uplink/downlink control channel is a pair of.
Transmission information on the every couple of HS-SCCH that chooses and carrier wave of HS-SCCH channel control, it is the channel resource that HS-SCCH indication HS-DSCH channel distributes on this carrier wave, information such as the size of transmission data block, HS-SICH reporting channel condition and ACK response message.If being terminal UE, Node B distributed A, B, three carrier waves of C to transmit the HS-DSCH channel data, then Node B adopts three couples of HS-SCCH and HS-SCCH control channel to send corresponding control information, and every pair of control channel is controlled the transformat of the HS-DSCH channel on the carrier wave.
Carry out the distribution of multi-carrier HSDPA control channel by present embodiment two, it distributes more convenient flexible, is convenient to network side and carries out resource distribution.
Based on the distribution of above-mentioned disclosed multi-carrier HSDPA control channel, the present invention also provides a kind of group data transmission method of multi-carrier HSDPA.See also Fig. 2, it is the flow chart of the packet data transmission of multi-carrier HSDPA of the present invention.It comprises:
S210: the distribution of multi-carrier HSDPA control channel
A: during accessing user terminal to network, network side is that described user terminal distributes K that uplink/downlink control channel is monitored in order to user terminal;
B: in carrying out the professional transmission course of HSDPA, network side the K that distributes for user terminal to uplink/downlink control channel in, choose N carries out control information to uplink/downlink control channel transmission, network side distributes a pair of up-downgoing to follow channel on each carrier wave at the described uplink/downlink control channel place of choosing, M 〉=N 〉=1, M is that network side sends the used carrier wave number of grouped data.
In fact, uplink/downlink control channel is a common signal channel, and up-downgoing to follow channel be dedicated channel.Up-downgoing follows channel to be used for the power control and the Synchronization Control message of high level control signaling, high-rise response message and the initialization HS-SCCH and the HS-SICH channel of transmission user terminal.User terminal follows channel to obtain the high-level signaling of network side transmission and the power and the Synchronization Control data of uplink/downlink control channel by up-downgoing, so that user terminal can correctly be set the initial power of the uplink/downlink control channel that is selected and carry out Synchronization Control, and then makes user terminal and network side communicate by the uplink/downlink control channel that is selected.By the HS-SCCH channel, network side can be notified to user terminal and send to the information of the data block of this user terminal at the HS-DSCH channel, comprises size, redundant version number, re-transmission sign of time slot, channel, modulation system, the data block of employing etc.By the HS-SICH channel, user terminal can feed back to the response message of network side transmission data and the channel condition of user terminal.
S220: in data transmission procedure, the transmission data answering information that network side reports by ascending control channel according to each user terminal and the channel quality indication of user terminal, select the user terminal of service next time and the channel resource and the transformat of employing, and send described control information by down control channel.
At the beginning of user terminal and network side are set up packet data transmission, when network side is given user terminal to transmit data for the first time, transmit control channel by down control channel in advance, user terminal receives described control information, carries out the reception of HS-DSCH channel data.When the subsequent packets transfer of data, network side can carry out the transmission of data next time by user terminal through the ascending control channel feedback channel.Usually, user terminal can carry out channel measurement, and feedback informations such as channel measurement result are sent to network side by ascending control channel.Comprise the size of transmission data block of user terminal suggestion and modulation format etc. in the channel quality indication.
Network side is indicated according to described channel quality, selects the user terminal of service next time and the channel resource and the transformat of employing.When transmitting data at every turn, network side is according to transmission data answering message and the user terminal channel quality indication of each user terminal by the ascending control channel feedback, need to select the user terminal of service according to dispatching algorithm, and determine the channel resource that adopts and send form.
Network side sends control information for described user terminal by down control channel, so that user terminal receives the HS-DSCH channel transmission data according to described control information.
S230: network side sends data by the HS-DSCH channel.
User terminal can receive the data that the HS-DSCH channel sends by the control information of down control channel transmission.Network side sends grouped data by the HS-DSCH channel.The data that receive when user terminal are wrong and do not exceed maximum retransmission, then by HS-SICH channel notification network side data retransmission, if the data that receive are wrong and exceed that maximum number of retransmissions just abandons these data and the informing network side sends new data, if do not have mistake then can send new data by network side.Sending the response message of data and the channel quality Indication message of user terminal sends by the HS-SICH channel, so that the transmission data answering information of the feedback of network side reception HS-SICH Channel Transmission and the channel quality indication of user terminal, decide next step action: data retransmission still transmits new data etc.
That is to say, also comprise between step S210 and the step S220: it is that uplink/downlink control channel selected on the same carrier wave is set initial power that described user terminal is followed the control channel of channel by up-downgoing, so that user terminal can be set up communicating by letter of uplink/downlink control channel with network side.
Network side is chosen a pair of uplink/downlink control channel for each used carrier wave of transmission data among the step S210, a pair of up-downgoing is set on each carrier wave at the described uplink/downlink control channel place of choosing follows channel; User terminal obtains described control information by the down control channel of choosing among the monitoring step S210 among the step S220.
Step S210 can also be that network side is that all used carrier waves of transmission data are chosen a pair of uplink/downlink control channel and channel is followed in a pair of up-downgoing; Step S220 user terminal obtains described control information by the down control channel of choosing among the monitoring step S210.
By above-mentioned steps of the present invention, can realize the packet data transmission of multi-carrier HSDPA.Below above-mentioned packet data transmission is described for two examples.
Example 1
Suppose that UE supports to receive on N the carrier wave HSDPA data, then network side is chosen the M (channel resource of individual carrier wave of M≤N) from this N carrier wave of UE support.Described channel resource comprises carrier wave, time slot, code channel.Network side for user A distribute K to the HS-SCCH of HS-SCCH channel and HS-SICH channel and pairing and HS-SICH channel on same carrier wave.
User A monitors this K bar HS-SCCH channel when not having transfer of data.If network side need send data to user A on the HS-DSCH channel, then network side will be chosen a control channel as HS-DSCH from K bar HS-SCCH channel, send the relevant control information of all HS-DSCH channels.And on this carrier wave, distribute a pair of up-downgoing to follow channel.
Suppose that Node B sends data to user A simultaneously with L carrier wave, this HS-SCCH channel sends the control information of the HS-DSCH channel on L the carrier wave to user A, as carrier number and frequency points corresponding, each this user's of allocation of carriers time slot, sign indicating number Taoist monastic name, the modulation system that sends data, the size that sends data block, redundant version number, re-transmission identifies and the treatment progress of HARQ, UE ID number etc.The Downlink Control Information that is a plurality of carrier waves transmits by this control channel.Simultaneously, user A sends the channel condition information of L carrier wave and receives response message to Node B by the HS-SICH channel of HS-DSCH channel correspondence, whether network terminal retransmits through row according to the reception response message decision that UE reports, if send new data, network terminal determines to transmit institute's service object with transformat according to channel condition information next time.
Adopt the shared pair of control channel of a plurality of carrier waves to carry out the method for transfer of data, each user terminal only need monitor a HS-SCCH channel, realizes simple and convenient.
Embodiment 2
Suppose that UE supports to receive on N the carrier wave HSDPA data, then this N carrier wave of supporting from UE of network terminal is chosen the M (channel resource of individual carrier wave of 1≤M≤N), for user A distributes K to HS-SCCH channel and HS-SICH channel, and the HS-SCCH of pairing and HS-SICH channel are on same carrier wave.User A is not when having transfer of data, and HS-SCCH monitors to the K bar.If network side NodeB choose L (the HS-DSCH channel of the individual carrier wave of 1≤L≤M) sends data to user A, then Node B in K bar HS-SCCH channel, choose L to HS-DSCH and HS-SICH channel as control channel, the corresponding pair of control channel of each carrier wave.On the HS-SCCH of each carrier wave correspondence channel, Node B is by the Downlink Control Information of this channel transmission to the HS-DSCH channel resource of this carrier wave, equally, corresponding HS-SICH channel sends the ascending control information of this carrier wave, and control information comprises the channel condition of this carrier wave and sends the reception response message of data.
If HS-SCCH channel that the user is all and HS-SICH are on same carrier wave, then for this user distribute to follow the DPCH channel to have only a pair of, otherwise, if K distributes on M carrier wave control channel, then need branch M to following the DPCH channel, each corresponding carrier wave is a pair of.
Transmission information on the every couple of HS-SCCH and carrier wave of HS-SCCH channel control, i.e. channel resource, information such as the size of transmission data block, HS-SICH reporting channel condition and ACK response message that HS-SCCH indication HS-DSCH channel distributes on this carrier wave.
Adopt the corresponding control channel of each carrier wave to carry out the method for transfer of data, this method is for network side, distributes convenient, flexiblely, is convenient to resource distribution.
A kind of radio network controller, be used for the distribution of the control channel of multi-carrier HSDPA, described radio network controller comprises a control channel distributor, described control channel distributor comprises that uplink/downlink control channel allocation units, uplink/downlink control channel are chosen the unit and channel-assignment unit is followed in up-downgoing, wherein:
Described uplink/downlink control channel allocation units are used to the user terminal of access network to distribute K to uplink/downlink control channel;
Described uplink/downlink control channel is chosen the unit, connect the uplink/downlink control channel allocation units, be used for carrying out the professional transmission course of HSDPA, the K that distributes for user terminal chooses N carries out control information to uplink/downlink control channel transmission in the uplink/downlink control channel;
Channel-assignment unit is followed in up-downgoing: distribute a pair of up-downgoing to follow channel on each carrier wave at described every pair of uplink/downlink control channel place choosing
Control channel distributor in the radio network controller can be realized by the controller in the radio network controller.It is consistent that the distribution of the control channel in each sub-district is generally.Such as, for the user who inserts in the sub-district distributes a pair of uplink/downlink control channel.The control channel distributor can connect Transmit-Receive Unit, and when accessing user terminal to network, the ascending control channel allocation units distribute uplink/downlink control channel for this user terminal.Described uplink/downlink control channel is chosen the unit, connect the uplink/downlink control channel allocation units, be used for carrying out the professional transmission course of HSDPA, the K that distributes for user terminal chooses N carries out control information to uplink/downlink control channel transmission in the uplink/downlink control channel.Channel-assignment unit is followed in up-downgoing, follows channel according to the up-downgoing of the allocation of carriers correspondence at the uplink/downlink control channel place that is selected.Every pair of uplink/downlink control channel distributes a up-downgoing to follow channel on the carrier wave at every pair of uplink/downlink control channel place at same carrier wave.
More than disclosed only be several specific embodiment of the present invention, but the present invention is not limited thereto, any those skilled in the art can think variation all should drop in protection scope of the present invention.
Claims (13)
1. the distribution method of a multi carrier wave high-speed downlink packet access HSDPA control channel is characterized in that, comprising:
During accessing user terminal to network, network side is that described user terminal distributes the uplink/downlink control channel of K to needing user terminal to monitor;
In carrying out the professional transmission course of HSDPA, network side the K that distributes for user terminal to uplink/downlink control channel in, choose N carries out control information to uplink/downlink control channel transmission, network side distributes a pair of up-downgoing to follow channel on each carrier wave at the described uplink/downlink control channel place of choosing, M 〉=N 〉=1, M is that network side sends the used carrier wave number of grouped data.
2. the distribution method of multi-carrier HSDPA control channel as claimed in claim 1, it is characterized in that, network side is chosen a pair of uplink/downlink control channel for each used carrier wave of transmission data, and each is used to transmit the control information of high speed shared channels HS-DSCH channel on the corresponding carrier wave to uplink/downlink control channel.
3. the distribution method of multi-carrier HSDPA control channel as claimed in claim 2, it is characterized in that, the different ascending control channels of same user terminal are distributed in respectively on the different carrier, and the different down control channels of same user terminal are distributed on the different carrier respectively.
4. the distribution method of multi-carrier HSDPA control channel as claimed in claim 2, it is characterized in that, all down control channels of same user terminal are distributed on the same carrier wave, all ascending control channels of same user terminal be distributed on the different carrier or
All ascending control channels of same user terminal are distributed on the same carrier wave, and all down control channels of same user terminal are distributed on the different carrier.
5. the distribution method of multi-carrier HSDPA control information as claimed in claim 2, it is characterized in that, the down control channel of each ascending control channel and pairing is corresponding to a carrier wave, described ascending control channel is used for user terminal and is transmitted in the channel condition on the corresponding carrier wave and receives response message, is used to transmit the Downlink Control Information of relevant HS-DSCH channel resource on the corresponding carrier wave with the down control channel of ascending control channel pairing.
6. the distribution method of multi-carrier HSDPA control channel as claimed in claim 1, it is characterized in that, network side is that all used carrier waves of transmitting grouped data are chosen a pair of uplink/downlink control channel, and this is used to transmit the control information of HS-DSCH channel on all carrier waves to uplink/downlink control channel.
7. the distribution method of multi-carrier HSDPA control channel as claimed in claim 6, it is characterized in that, described ascending control channel is used for user terminal and is transmitted in the channel condition on all carrier waves and receives response message, is used to transmit the Downlink Control Information of HS-DSCH channel resource on all carrier waves with the down control channel of described ascending control channel pairing.
8. as the distribution method of claim 2 or 6 described multi-carrier HSDPA control channels, it is characterized in that, network side is chosen all down control channels of same user terminal and all ascending control channels from same carrier wave, and same user distributes on same carrier wave and has only a pair of up-downgoing to follow channel.
9. the group data transmission method of a multi-carrier HSDPA is characterized in that, comprising:
(1) distribution of multi-carrier HSDPA control channel
A: during accessing user terminal to network, network side is that described user terminal distributes the uplink/downlink control channel of K to needing user terminal to monitor;
B: in carrying out the professional transmission course of HSDPA, network side the K that distributes for user terminal to uplink/downlink control channel in, choose N carries out control information to uplink/downlink control channel transmission, network side distributes a pair of up-downgoing to follow channel, M 〉=N 〉=1 on each carrier wave at the described uplink/downlink control channel place of choosing;
(2) in data transmission procedure, the transmission data answering information that network side reports by ascending control channel according to each user terminal and the channel quality indication of user terminal, select the user terminal of service next time and the channel resource and the transformat of employing, and send described control information by down control channel;
(3) network side sends data by the HS-DSCH channel.
10. the group data transmission method of a kind of multi-carrier HSDPA as claimed in claim 9, it is characterized in that, also comprise between step (1) and the step (2): it is that uplink/downlink control channel selected on the same carrier wave is set initial power that described user terminal is followed the control channel of channel by up-downgoing, so that user terminal can be set up communicating by letter of uplink/downlink control channel with network side.
11. the group data transmission method of a kind of multi-carrier HSDPA as claimed in claim 9 is characterized in that,
Network side is chosen a pair of uplink/downlink control channel for each used carrier wave of transmission data in the step (1), a pair of up-downgoing is set on each carrier wave at the described uplink/downlink control channel place of choosing follows channel;
User terminal obtains described control information by the down control channel of choosing in the monitoring step (1) in the step (2).
12. the group data transmission method of a kind of multi-carrier HSDPA as claimed in claim 9 is characterized in that,
Step (1) network side chooses a pair of uplink/downlink control channel for all used carrier waves of transmission data and channel is followed in a pair of up-downgoing;
Step (2) user terminal obtains described control information by the down control channel of choosing in the monitoring step (1).
13. radio network controller, be used for the distribution of the control channel of multi-carrier HSDPA, it is characterized in that, described radio network controller comprises a control channel distributor, described control channel distributor comprises that uplink/downlink control channel allocation units, uplink/downlink control channel are chosen the unit and channel-assignment unit is followed in up-downgoing, wherein:
Described uplink/downlink control channel allocation units are used to the user terminal of access network to distribute K to uplink/downlink control channel;
Described uplink/downlink control channel is chosen the unit, connect the uplink/downlink control channel allocation units, be used for carrying out the professional transmission course of HSDPA, the K that distributes for user terminal chooses N carries out control information to uplink/downlink control channel transmission in the uplink/downlink control channel;
Channel-assignment unit is followed in up-downgoing: distribute a pair of up-downgoing to follow channel on each carrier wave at the described uplink/downlink control channel place of choosing.
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