CN102571299B - A kind of uplink closed loop sends information feedback method and the device of diversity - Google Patents
A kind of uplink closed loop sends information feedback method and the device of diversity Download PDFInfo
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Abstract
The invention discloses a kind of uplink closed loop and send the information feedback method of diversity, each broken shape DPCH (F DPCH) is distributed at least one user by base station；Use at least one F DPCH as feedback channel, arrange in a time division manner between the information of different user in F DPCH every described；In described F DPCH, the information of at least one user includes that uplink closed loop sends feedback information and the up TPC instruction of diversity；The present invention also discloses a kind of uplink closed loop and send the information feedback device of diversity, pass through the solution of the present invention, it is capable of uplink closed loop and sends the information feedback of diversity, when described information is weights, solve the problem that uplink closed loop sends the weight feedback of diversity, it is simple to the user side of HSUPA system completes to send the operation of diversity.
Description
Technical field
The present invention relates to weight feedback technology, particularly relate to a kind of uplink closed loop and send information feedback method and the dress of diversity
Put.
Background technology
It is the Enhanced Technology that 3GPP Release 6 introduces that High Speed Uplink Packet accesses (HSUPA), it is intended to improve
The transfer rate of up-link, is the enhancing to WCDMA (WCDMA) up-link performance and extension.HSUPA passes through
Introduce fast uplink mixing and retransmit (HARQ), uplink scheduling based on base station (NodeB) and simpler with version before
Multi-code transmission, improves ul transmissions performance, makes the peak-peak transfer rate of up-link can reach 5.76 megabits
(Mbps) per second.
Multi-antenna technology be by transmitting terminal and/or receiving terminal use many antennas realize higher power system capacity,
Wider array of MPS process and better services quality.Transmitting terminal and/or many antennas of receiving terminal, both can be used to realize sending out
Send or receive diversity and may also be used for realizing spatial reuse.Wherein, it is a kind of transmitting terminal transmission at least 2 for sending diversity technique
The anti-fading technology of the wireless communication field of the signal of carrying identical information.Wherein, carrying identical information signal derive to
Few 2 separate signal sources.Send structure and statistical property and its institute that diversity technique launches signal sample according to it
Account for the difference of Radio Resource, space, frequency, time 3 big fundamental type can be divided into, it is also possible to be the mutual of this 3 type
In conjunction with.Described space diversity refers to utilize the difference of different launch site (space) position, and signal arrives after experience channel and connects
Irrelevance in statistical property during receiving end, it is achieved anti fading function.Described frequency diversity refers to that utilization is positioned at different frequency
The signal of section uncorrelated characteristic statistically after fading channel, i.e. difference on different frequency range fading statistical characteristics, come real
The function of existing anti-fading (frequency selectivity).Information to be sent can be modulated at frequency not when realizing by frequency diversity respectively
Launch on relevant carrier wave.Described time diversity refers to utilize a randomly fading signal, when the time interval of sample point
(more than transmission channel coherence time) time sufficiently large, the decline between sampling point is statistically orthogonal, i.e. utilizes on the time
Difference on fading statistical characteristics, realizes anti-time selective fading.
Sending diversity technique is divided into open loop to send according to receiving terminal the need of the parameter needed to transmitting terminal feedback diversity
Diversity mode and closed-loop diversity transmitting mode.Open loop sends under diversity mode, and receiving terminal is not any extra to transmitting terminal feedback
The information relevant to transmitting, transmitting terminal can use corresponding coding techniques (such as simple Space-Time coding) to complete to send out voluntarily
Send diversity.Under closed-loop diversity transmitting mode, receiving terminal needs to use feedback channel feed back to transmitting terminal one and send diversity phase
The parameter (such as sending the precoding vector instruction needed for diversity) closed, transmitting terminal uses this feedback information to complete to send out after the receipt
Send diversity.
In 3GPP Release 10, the up open loop of the user of HSUPA system sends diversity and is complete in standard
Formulation (TR25.863), but the related content of closed-loop diversity transmitting there is presently no and determines.Due to drawing of closed-loop diversity transmitting
Entering, in the case of carrying out launching precoding, base station certainly will need to send the value information needed for diversity to user feedback, because of
This, it is necessary to the problem of the weight feedback that uplink closed loop sends diversity is solved.
Summary of the invention
In view of this, present invention is primarily targeted at provide a kind of uplink closed loop send diversity information feedback method and
Device, it is possible to realize uplink closed loop and send the information feedback of diversity, solve uplink closed loop and send the asking of weight feedback of diversity
Topic, it is simple to the user of HSUPA system completes to send the operation of diversity.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of uplink closed loop that the present invention provides sends the information feedback method of diversity, and the method includes:
Every broken shape DPCH (F-DPCH) is distributed at least one user by base station；
Base station using at least one F-DPCH as feedback channel, in F-DPCH every described between the information of different user
Arrange in a time division manner；In described F-DPCH the information of at least one user include uplink closed loop send diversity feedback information and
Uplink power controls (TPC, Transmission Power Control) instruction.
In such scheme, described uplink closed loop sends the feedback information of diversity and includes: uplink closed loop sends the feedback of diversity
Weights.
In such scheme, the spreading factor of described F-DPCH is 128 or 256；
The bit number of the feedback information that described uplink closed loop sends diversity is 2 bits or 3 bits.
In such scheme, the method farther includes: base station sends the anti-of diversity to the described uplink closed loop of same user
Feedforward information and up TPC instruct adjacent transmission.
In such scheme, feedback information and the up TPC of the described described uplink closed loop transmission diversity to same user refer to
Make adjacent transmission, for, the feedback information that described uplink closed loop sends diversity instructs adjacent transmission prior to described up TPC；
Or, described up TPC instruction is sent prior to described uplink closed loop the adjacent transmission of feedback information of diversity；
Or, described uplink closed loop is sent the feedback information bits of diversity and intersects adjacent transmission with TPC command bit.
In such scheme, the method farther includes: F-DPCH is launched according to timing reference signal in described base station.
A kind of uplink closed loop that the present invention provides sends the information feedback device of diversity, and this device includes: distribution module, anti-
Feedback module；Wherein,
Distribution module, for distributing at least one user by every F-DPCH；
Feedback module, for using at least one F-DPCH as feedback channel, in F-DPCH every described, difference is used
Arrange in a time division manner between the information at family；In described F-DPCH, the information of at least one user includes that uplink closed loop sends diversity
Feedback information and up TPC instruction.
In such scheme, described feedback module, it is further used for the described uplink closed loop to same user and sends diversity
Feedback information and up TPC instruct adjacent transmission.
In such scheme, described feedback module, specifically for by described uplink closed loop send diversity feedback information prior to
Described up TPC instructs adjacent transmission；
Or, described up TPC instruction is sent prior to described uplink closed loop the adjacent transmission of feedback information of diversity；
Or, described uplink closed loop is sent the feedback information bits of diversity and intersects adjacent transmission with TPC command bit.
In such scheme, described feedback module, it is additionally operable to further launch F-DPCH according to timing reference signal.
A kind of uplink closed loop that the present invention provides sends information feedback method and the device of diversity, and base station is by each F-
DPCH distributes at least one user；Use at least one F-DPCH as feedback channel, different in F-DPCH every described
Arrange in a time division manner between the information of user；In described F-DPCH, the information of at least one user includes uplink closed loop transmission point
The feedback information of collection and up TPC instruction；So, it is possible to realize uplink closed loop and send the information feedback of diversity, in described information
During for weights, solve the problem that uplink closed loop sends the weight feedback of diversity, it is simple to the user side of HSUPA system completes to send
The operation of diversity.
Accompanying drawing explanation
Fig. 1 is frame structure and the structure of time slot schematic diagram of F-DPCH in prior art；
Fig. 2 is the prior art time division way that F-DPCH is shared by multiple users when being not introduced into closed-loop diversity transmitting signal
Figure；
Fig. 3 is the schematic flow sheet that the present invention realizes that a kind of uplink closed loop sends the information feedback method of diversity；
Fig. 4 be the spreading factor of F-DPCH of the present invention be 256, weights are prior to the schematic diagram of the adjacent transmission of TPC；
Fig. 5 be the spreading factor of F-DPCH of the present invention be 128, weights are prior to the schematic diagram of the adjacent transmission of TPC；
Fig. 6 be the spreading factor of F-DPCH of the present invention be 256, TPC is prior to the schematic diagram of the adjacent transmission of weights；
Fig. 7 be the spreading factor of F-DPCH of the present invention be 128, TPC is prior to the schematic diagram of the adjacent transmission of weights；
Fig. 8 be the spreading factor of F-DPCH of the present invention be 256, TPC intersects the schematic diagram of adjacent transmission with weights；
Fig. 9 be the spreading factor of F-DPCH of the present invention be 128, TPC intersects the schematic diagram of adjacent transmission with weights；
Figure 10 is that the present invention selects 4 weight feedback code books, the spreading factor of F-DPCH is when being 256, before weights are positioned at TPC
Time division way send time diagram；
Figure 11 is that the present invention selects 4 weight feedback code books, the spreading factor of F-DPCH is when being 128, before weights are positioned at TPC
Time division way send time diagram；
Figure 12 is that the present invention selects 4 weight feedback code books, the spreading factor of F-DPCH is when being 256, and F-DPCH is by multiple use
The time division way schematic diagram that family shares；
Figure 13 is that the present invention selects 4 weight feedback code books, the spreading factor of F-DPCH is when being 128, and F-DPCH is by multiple use
The time division way schematic diagram that family shares；
Figure 14 is that the present invention selects 8 weight feedback code books, the spreading factor of F-DPCH is when being 256, before weights are positioned at TPC
Time division way send time diagram；
Figure 15 is that the present invention selects 8 weight feedback code books, the spreading factor of F-DPCH is when being 128, before weights are positioned at TPC
Time division way send time diagram；
Figure 16 is the structural representation that the present invention realizes that a kind of uplink closed loop sends the information feedback device of diversity.
Detailed description of the invention
The present invention solves the problem that uplink closed loop sends the weight feedback of diversity, it is thus necessary to determine that system is used for carry instead
The appropriate feedback channel of feedback value information, and channel time slot format and the transmission side of this channel is designed according to the bit number of feedback
Formula.In terms of selecting the channel of carrying feedback weight, mainly having two kinds of embodiments, one is that exploitation one is for feedback weight
The new channel of transmission, another kind is that the channel existed in multiplexing current 3GPP Release10 agreement carries out feedback weight
Transmission.Relatively greatly and the significantly change to 3GPP Release 10 agreement is related to, therefore originally owing to designing new channel overhead
Invention is based primarily upon the second embodiment, i.e. uses existing channel as the feedback channel of feedback weight.By in standard
The assessment of all channels, the present invention uses F-DPCH as feedback channel.
F-DPCH is to complete standardized a kind of down physical channel in 3GPP Release 6.The design of F-DPCH depends on
According to being, multiple users same channelization code resource of (TDM) multiplexing in a time division manner.F-DPCH is from the angle of channel code
It is the channel that shares of multiple user, but observes from time domain, use each user of same channel to occupies only specific
X time, overlap occurs mutually on a timeline, therefore it is substantially a kind of dedicated channel, and this is also existing
F-DPCH is classified as the reason of dedicated channel by protocols having.In the prior art, F-DPCH uses single fixing spreading factor
(SF=256), its frame structure and structure of time slot as it is shown in figure 1, only in order to send for power control 2 bit TPC instruction, and
Can carry the TPC instruction of 10 users in one time slot, now, the time division way of F-DPCH as in figure 2 it is shown, F-DPCH time
The relevant parameter of gap structure and the distribution of each region bit number are as shown in table 1.
Table 1
The basic thought of the present invention is: each F-DPCH is distributed at least one user by base station；Use at least one
F-DPCH, as feedback channel, arranges between the information of different user in F-DPCH every described in a time division manner；Described F-
In DPCH, the information of at least one user includes that uplink closed loop sends feedback information and the up TPC instruction of diversity.
Below by drawings and the specific embodiments, the present invention is described in further detail.
The present invention realizes a kind of uplink closed loop and sends the information feedback method of diversity, as it is shown on figure 3, the method includes following
Several steps:
Step 101: each F-DPCH is distributed at least one user by base station；
Step 102: base station use at least one F-DPCH as feedback channel, different user in F-DPCH every described
Information between arrange in a time division manner；In described F-DPCH, the information of at least one user includes that uplink closed loop sends diversity
Feedback information and up TPC instruction；
Here, described uplink closed loop sends the feedback information of diversity, sends the feedback weight etc. of diversity including uplink closed loop；
The spreading factor of described F-DPCH is 128 or 256；Described uplink closed loop sends the bit of the feedback information of diversity
Number, can be 2 bits or 3 bits；
At least one user described is: at least one has the user of ability of receiving feedback information, and base station is according to user
Pilot signal know that user has an ability of receiving feedback information, and configure the feedback of the information to this user.
Further, this step also includes: base station sends the feedback information of diversity to the described uplink closed loop of same user
Adjacent transmission is instructed with up TPC.
Further, the described described uplink closed loop to same user sends feedback information and the up TPC instruction of diversity
Adjacent transmission, specifically, the feedback information that described uplink closed loop sends diversity instructs adjacent transmission prior to described up TPC；
Below described uplink closed loop is sent the feedback information of diversity as a example by the feedback weight of up closed-loop diversity transmitting
Illustrate.As shown in Figure 4, when the spreading factor of described F-DPCH is 256, in described time slot #i, uplink closed loop sends diversity
Feedback weight is represented by weights, has NWeightsBit, TPC instruction is represented there is N by TPCTPCBit, it can be seen that weights are prior to TPC phase
Adjacent transmission；It addition, during as it is shown in figure 5, the spreading factor of described F-DPCH is 128, it can also be seen that weights are adjacent prior to TPC
Send.
Further, the described described uplink closed loop to same user sends feedback information and the up TPC instruction of diversity
Adjacent transmission, specifically, send the adjacent transmission of feedback information of diversity by described up TPC instruction prior to described uplink closed loop；
Below described uplink closed loop is sent the feedback information of diversity as a example by the feedback weight of up closed-loop diversity transmitting
Illustrate.As shown in Figure 6, when the spreading factor of described F-DPCH is 256, in described time slot #i, uplink closed loop sends diversity
Feedback weight is represented by weights, has NWeightsBit, TPC instruction is represented there is N by TPCTPCBit, it can be seen that TPC is prior to weights phase
Adjacent transmission；It addition, during as it is shown in fig. 7, the spreading factor of described F-DPCH is 128, it can also be seen that TPC is adjacent prior to weights
Send.
Further, the described described uplink closed loop to same user sends the feedback information bits of diversity and up TPC
The adjacent transmission of command bit, specifically, the feedback information bits that described uplink closed loop sends diversity is intersected with TPC command bit
Adjacent transmission；
Below described uplink closed loop is sent the feedback information of diversity as a example by the feedback weight of up closed-loop diversity transmitting
Illustrate.As shown in Figure 8, when the spreading factor of described F-DPCH is 256, in described time slot #i, uplink closed loop sends diversity
Feedback weight is represented by weights, has NWeightsBit, TPC instruction is represented there is N by TPCTPCBit, the TPC of each bit hands over weights
Pitch adjacent transmission；It addition, during as it is shown in figure 9, the spreading factor of described F-DPCH is 128, the TPC of same each bit and weights
Intersect adjacent transmission.
Further, this step also includes: F-DPCH is launched according to timing reference signal in described base station, up closes described
Environment-development send the feedback information of diversity and up TPC instruction feedback at least one user.
The bit number of the feedback information that described uplink closed loop sends diversity is 2 bits, when spreading factor is 256, and described F-
The relevant parameter of the structure of time slot of DPCH and the distribution of each region bit number are as shown in table 2；Described uplink closed loop sends diversity
The bit number of feedback information be 2 bits, when spreading factor is 128, the relevant parameter of the structure of time slot of described F-DPCH and each
The distribution of region bit number is as shown in table 3；The bit number of the feedback information that described uplink closed loop sends diversity is 3 bits, expands
Frequently, when the factor is 256, the relevant parameter of the structure of time slot of described F-DPCH and the distribution of each region bit number are as shown in table 4；
It is 3 bits that described uplink closed loop sends the bit number of feedback information of diversity, when spreading factor is 128, described F-DPCH time
The relevant parameter of gap structure and the distribution of each region bit number are as shown in table 5.
Table 2
Table 3
Table 4
Table 5
The feedback weight that uplink closed loop sends diversity is represented by weights, and TPC instruction is represented by TPC, in Figure 10 and Figure 11
Provide weights and be positioned at the sequential signal that the time division way before TPC sends, be referred to reference to Fig. 4 to Fig. 9, by exchange weights
With the position of TPC, TPC can be obtained and be positioned at the sequential signal that time division way before weights sends, it is also possible to obtain weights and
The sequential signal that the time division way of TPC cross arrangement sends.As shown in Figure 10, the feedback weight of diversity is sent when uplink closed loop
When bit number is 2 bit, when i.e. selecting 4 weight feedback code book, the weights bit number of each user is 2 bits, with TPC instruction
2 bits will occupy 4 bits altogether, and under conditions of spreading factor is 256,20 bits in a time slot can be by 5 need
The user wanting feedback weight is shared without producing user-user information on a timeline overlapping.And be 128 at spreading factor
Under conditions of, as shown in figure 11,40 bits of a time slot still can be total to by 10 users at most needing feedback weight
Enjoy without producing user-user information on a timeline overlapping.
Figure 12 gives selection 4 weight feedback code books, and when spreading factor is 256, F-DPCH is shared by multiple users
Time division way is illustrated, the information feeding back to different user is different.In this embodiment, user 1, user 4 and user 5 are fed back to
Information contain uplink closed loop and send the feedback weight of diversity and TPC instruction, structure of time slot #4, the #1 in the most corresponding table 2
And #2；And the information feeding back to user 2, user 3, user 6 and user 7 only contains TPC instruction, respectively in corresponding table 1 time
Gap structure #2, #3, #8 and #9.Descending spread spectrum code resources can be saved further by embodiment and base station transmitting power provides
Source.This embodiment can be used for the situation that spreading factor is 128, as shown in figure 13, when selecting 4 weight feedback code books,
And spreading factor is when being 128, feed back to the information bag of user 1, user 2, user 5, user 8, user 9, user 10 and user 13
Contain uplink closed loop and send feedback weight and the TPC instruction of diversity, structure of time slot #9, #0, #2, #4, the # in the most corresponding table 3
5, #6 and #8；And feed back to user 3, user 4, user 6, user 7, user 11, the information of user 12 only comprise TPC instruction, point
Structure of time slot #1a, #1b, #3a, #3b, #7a and #7b in not corresponding table 3.
When the bit number of the feedback weight of uplink closed loop transmission diversity is 3 bits, i.e. select 8 weight feedback code books, spread spectrum
When the factor is 256, the relevant parameter of the structure of time slot of described F-DPCH and the distribution of each region bit number are as shown in table 4；When
The bit number of the feedback weight that uplink closed loop sends diversity is 3 bits, i.e. selects 8 weight feedback code books, and spreading factor is 128
Time, the relevant parameter of the structure of time slot of described F-DPCH and the distribution of each region bit number are as shown in table 5.
The feedback weight that uplink closed loop sends diversity is represented by weights, and TPC instruction is represented by TPC, in Figure 14 and Figure 15
Provide weights and be positioned at the sequential signal that the time division way before TPC sends, be referred to reference to Fig. 4 to Fig. 9, by exchange weights
With the position of TPC, TPC can be obtained and be positioned at the signal that the time division way before weights sends, it is also possible to obtain weights and TPC hands over
The signal that the time division way of fork arrangement sends.When feedback weight code book is 8 weights, the weights bit number of each user is 3 ratios
Spy, will occupy 5 bits, under conditions of spreading factor is 256, as shown in figure 14, when one altogether with 2 bits of TPC instruction
The user that can be needed feedback weight by 4 is shared without producing user-user information on a timeline by 20 bits in gap
Overlapping.And under conditions of spreading factor is 128, as shown in figure 15,40 bits of a time slot can be by 8 needs feedbacks
The user of weights is shared without producing user-user information on a timeline overlapping.
In order to realize said method, the present invention also provides for a kind of uplink closed loop and sends the information feedback device of diversity, such as figure
Shown in 16, this device includes: distribution module 21, feedback module 22；Wherein,
Distribution module 21, for distributing at least one user by each F-DPCH；
Feedback module 22, for employing at least one F-DPCH as feedback channel, different in F-DPCH every described
Arrange in a time division manner between the information of user；In described F-DPCH, the information of at least one user includes uplink closed loop transmission point
The feedback information of collection and up TPC instruction；
Here, described uplink closed loop sends the feedback information of diversity, generally uplink closed loop and sends the feedback weight of diversity；
Described feedback module 22, be further used for the described uplink closed loop to same user send diversity feedback information and
Up TPC instructs adjacent transmission；
Described feedback module 22 sends feedback information and the up TPC instruction of diversity to the described uplink closed loop of same user
Adjacent transmission, specifically, described uplink closed loop is sent the feedback information of diversity prior to described up TPC by described feedback module 22
Instruct adjacent transmission；
Described feedback module 22 sends feedback information and the up TPC instruction of diversity to the described uplink closed loop of same user
Adjacent transmission, specifically, described up TPC instruction is sent the feedback of diversity by described feedback module 22 prior to described uplink closed loop
The adjacent transmission of information；
Described feedback module 22 sends feedback information and the up TPC instruction of diversity to the described uplink closed loop of same user
Adjacent transmission, specifically, described uplink closed loop is sent feedback information bits and the TPC instruction ratio of diversity by described feedback module 22
The adjacent transmission of special intersection；
Described feedback module 22, is additionally operable to launch F-DPCH, by described uplink closed loop according to timing reference signal further
The feedback information of transmission diversity and up TPC instruction feedback are at least one user.
Pass through the solution of the present invention, it is possible to realize uplink closed loop and send the information feedback of diversity, and effectively reuse existing
Down physical channel carrying feedback information, do not cause extra resource overhead.This method by the feedback information that is newly introduced with
In channel, original information placed adjacent, can make full use of the bit in channel, while simplified system designs, it is possible to
To carry most number of users in one time slot.This method is additionally contemplates that and the compatibility of original agreement, is believed by reduction
Road spreading factor, there is not acute variation in the number of users keeping multipling channel can carry in a time slot as far as possible.
The above, only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention, all
Any amendment, equivalent and the improvement etc. made within the spirit and principles in the present invention, should be included in the protection of the present invention
Within the scope of.
Claims (9)
1. the information feedback method of a uplink closed loop transmission diversity, it is characterised in that the method includes:
Every broken shape DPCH (F-DPCH) is distributed at least one user by base station；
Base station using at least one F-DPCH as feedback channel, in F-DPCH every described between the information of different user with time
Point mode arranges；In described F-DPCH, the information of at least one user includes that uplink closed loop sends the feedback information of diversity and up
Transmitting power control (TPC) instructs；
The spreading factor of described F-DPCH is 128；
The bit number of the feedback information that described uplink closed loop sends diversity is 2 bits or 3 bits.
Information feedback method the most according to claim 1, it is characterised in that described uplink closed loop sends the feedback letter of diversity
Breath includes: uplink closed loop sends the feedback weight of diversity.
Information feedback method the most according to claim 1, it is characterised in that the method farther includes: base station is to same
The described uplink closed loop of user sends feedback information and the up TPC adjacent transmission of instruction of diversity.
Information feedback method the most according to claim 3, it is characterised in that the described described uplink closed loop to same user
The feedback information and the up TPC that send diversity instruct adjacent transmission, for, described uplink closed loop is sent the feedback information of diversity first
Adjacent transmission is instructed in described up TPC；
Or, described up TPC instruction is sent prior to described uplink closed loop the adjacent transmission of feedback information of diversity；
Or, described uplink closed loop is sent the feedback information bits of diversity and intersects adjacent transmission with TPC command bit.
Information feedback method the most according to claim 1, it is characterised in that the method farther includes: described base station root
F-DPCH is launched according to timing reference signal.
6. the information feedback device of a uplink closed loop transmission diversity, it is characterised in that this device includes: distribution module, feedback
Module；Wherein,
Distribution module, for distributing at least one user by every F-DPCH；
Feedback module, for employing at least one F-DPCH as feedback channel, different user in F-DPCH every described
Arrange in a time division manner between information；In described F-DPCH, the information of at least one user includes that uplink closed loop sends the anti-of diversity
Feedforward information and up TPC instruction；
The spreading factor of described F-DPCH is 128；
The bit number of the feedback information that described uplink closed loop sends diversity is 2 bits or 3 bits.
Information feedback device the most according to claim 6, it is characterised in that described feedback module, is further used for same
The described uplink closed loop of one user sends feedback information and the up TPC adjacent transmission of instruction of diversity.
Information feedback device the most according to claim 7, it is characterised in that described feedback module, specifically for by described
Uplink closed loop sends the feedback information of diversity and instructs adjacent transmission prior to described up TPC；
Or, described up TPC instruction is sent prior to described uplink closed loop the adjacent transmission of feedback information of diversity；
Or, described uplink closed loop is sent the feedback information bits of diversity and intersects adjacent transmission with TPC command bit.
Information feedback device the most according to claim 6, it is characterised in that described feedback module, is additionally operable to root further
F-DPCH is launched according to timing reference signal.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110000375.4A CN102571299B (en) | 2011-01-04 | A kind of uplink closed loop sends information feedback method and the device of diversity | |
| EP11855141.5A EP2654347A4 (en) | 2011-01-04 | 2011-11-30 | Method and device for feeding back information about uplink closed loop transmit diversity |
| PCT/CN2011/083235 WO2012092801A1 (en) | 2011-01-04 | 2011-11-30 | Method and device for feeding back information about uplink closed loop transmit diversity |
| US13/909,053 US20130265994A1 (en) | 2011-01-04 | 2013-06-03 | Information feedback method and device for uplink closed loop transmission diversity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110000375.4A CN102571299B (en) | 2011-01-04 | A kind of uplink closed loop sends information feedback method and the device of diversity |
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| CN102571299A CN102571299A (en) | 2012-07-11 |
| CN102571299B true CN102571299B (en) | 2016-11-30 |
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| EP1816756A1 (en) * | 2006-02-02 | 2007-08-08 | Siemens Aktiengesellschaft | Method for transmitting power control information in a radio communications system |
| CN101505537A (en) * | 2008-02-05 | 2009-08-12 | 株式会社Ntt都科摩 | Mobile communication method, mobile communication system and radio network controller |
| WO2010107699A2 (en) * | 2009-03-16 | 2010-09-23 | Interdigital Patent Holdings, Inc. | Method and apparatus for performing uplink transmit diversity |
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