CN103051428B - The only PCI feedback cell determination methods and system of the terminal of configuration dedicated channel - Google Patents
The only PCI feedback cell determination methods and system of the terminal of configuration dedicated channel Download PDFInfo
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- CN103051428B CN103051428B CN201110309610.6A CN201110309610A CN103051428B CN 103051428 B CN103051428 B CN 103051428B CN 201110309610 A CN201110309610 A CN 201110309610A CN 103051428 B CN103051428 B CN 103051428B
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Abstract
The invention discloses a kind of precoding control instruction (PCI) the feedback cell determination methods of terminal of only configuration dedicated channel and systems approach to include：Network side receives the measurement report that the terminal of only configuration dedicated channel reports, and when determining that the terminal supports uplink closed loop to send diversity, chip energy is selected to indicate the feedback cell of (PCI) as the precoding control of the terminal with noise ratio (Ec/No) value maximum and/or the maximum cell of received signal code power (RSCP) value.Through the invention, the uplink closed loop for realizing the only terminal of configuration dedicated channel sends the PCI feedbacks of diversity so that the terminal for only configuring dedicated channel gets the feedback cell of optimal PCI, so as to improve system performance.
Description
Technical field
The present invention relates to the transmission diversity technique field of multiple antennas more particularly to a kind of terminals of only configuration dedicated channel
PCI feeds back cell determination method and system.
Background technology
Multi-antenna technology using more antennas in transmitting terminal and/or receiving terminal by realizing higher power system capacity, more
Wide MPS process and better services quality.Transmitting terminal and/more antennas of receiving terminal can both be used for realizing transmission or
Diversity is received, can also be used to realize spatial reuse.Wherein, it is that one kind contains in transmitting terminal transmission at least two to send diversity technique
There is the anti-fading technology of the wireless communication field of the signal of identical information.The signal of these carrying identical informations derives from least two
A mutually independent signal source.It sends diversity technique and emits the structure of signal sample and statistical property and its shared nothing according to it
The difference of line resource can be divided into space, frequency, this three big fundamental type of time, can also be the mutual of these three types
In conjunction with.So-called space diversity refers to, using the difference of different launch sites (space) position, signal reaches after undergoing channel to be connect
Irrelevance when receiving end in statistical property realizes anti-fading function.So-called frequency diversity refers to, using positioned at different frequencies
Uncorrelated characteristic of the signal of section after fading channel statistically, i.e. difference on different frequency range fading statistical characteristics are come real
The function of existing anti-fading (frequency selectivity).Information to be sent can be respectively modulated to frequency incoherent carrier wave when realization
On emitted.So-called time diversity refers to, using a randomly fading signal, when the time interval of sample point is sufficiently large
(be more than transmission channel coherence time), the decline between sampling point is statistically orthogonal, that is, utilizes time fading rise statistics
Difference in characteristic realizes anti-time selective fading.
Send whether diversity technique needs the parameter needed to transmitting terminal feedback diversity to be divided into open loop transmission according to receiving terminal
Diversity mode and closed-loop diversity transmitting module.Open loop is sent under diversity mode, and receiving terminal does not feed back to transmitting terminal any additional
Emit relevant information, transmitting terminal can voluntarily use corresponding coding techniques (such as simple Space-Time coding) to complete to send
Diversity.Under closed-loop diversity transmitting mode, receiving terminal needs to feed back to transmitting terminal one using feedback channel related to diversity is sent
Parameter (such as send diversity needed for precoding vector, pass through precoding indicate information instruction), transmitting terminal makes after the receipt
It is completed to send diversity with the feedback information.
In 3GPP Release 10, High Speed Uplink Packet access (HSUPA, High Speed Uplink
Packet Access) the uplink open loop of system subscriber terminal sends diversity and has been completed the formulation (TR25.863) of standard, at present
The related content of closed-loop diversity transmitting is being discussed, precoding control is being introduced and indicates (PCI, Precoding Control
Indication).Industry is reached common understanding in the channel architecture of uplink closed loop transmission diversity at present, as shown in Figure 1, increasing on one
Row channel, i.e., auxiliary Dedicated Physical Control Channel (S-DPCCH, Secondary-Dedicated Physical Control
Channel), auxiliary pilot value is uploaded to network side, and network side can utilize the auxiliary pilot value received and Dedicated Physical Control Channel
Pilot value in (DPCCH, Dedicated Physical Control Channel) understands the weak situation of channel path；Newly
Increase a down channel, is similar to fractional dedicated physical channel (F-DPCH), i.e. score precoding instruction channel (F-
PCICH), for transmitting the precoding values of uplink transmitting diversity to terminal, to reach the more preferable situation for preventing path weak.Mesh
Before, it is that 3 time slots are sent once for F-DPCH, when for there is compact model transmission, terminal preserves last before interval
A PCI received, receives new precoding behind compressed mode transmission interval.
For soft handover, preceding control information is determined by a cell.If enhancement type special channel serving cell quilt
It configures, then this cell is configured for determining PCI；If enhancement type special channel serving cell is not configured, under high speed
The shared channel serving cell of row is configured, then this high-speed downward sharing channel service residence is configured for determining PCI.
But when being in soft handover for only having the terminal of dedicated channel, which specific cell is existing for determining PCI
There is technology to provide corresponding solution not yet.
Invention content
In view of this, the main purpose of the present invention is to provide a kind of PCI feedbacks of the terminal of only configuration dedicated channel are small
Area determines method and system, to realize that the uplink closed loop of the only terminal of configuration dedicated channel sends the PCI feedbacks of diversity.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
The present invention provides a kind of PCI of the terminal of only configuration dedicated channel to feed back cell determination method, and this method includes：
Network side receives the measurement report that the terminal of only configuration dedicated channel reports, and determines that the terminal supports uplink to close
When ring sends diversity, select chip energy and noise ratio (Ec/No) value maximum and/or received signal code power (RSCP) value maximum
Cell as the terminal precoding control indicate (PCI) feedback cell.
After selecting the feedback cell of PCI of the terminal, this method further comprises：
The feedback cell of the PCI of the terminal is allocated to the terminal by the network side by downlink space interface signaling.
After selecting the feedback cell of PCI of the terminal, this method further comprises：
The network side is by wireless link or wireless link reallocation message by the feedback cell of the PCI of the terminal
It is allocated to the node B (NodeB) of the feedback cell.
This method further comprises：
When the network side know the feedback cell of the PCI of the terminal be no longer that Ec/No values are maximum and/or RSCP values most
When big cell, select that Ec/No values are maximum and/or the maximum cell of RSCP values is small as the feedback of PCI for the terminal again
Area, and the feedback cell of the PCI reselected is allocated to by the terminal by downlink space interface signaling.
This method further comprises：
The network side is by wireless link or wireless link reallocation message by the feedback of the PCI reselected
Cell is allocated to the NodeB of the feedback cell reselected.
The present invention also provides a kind of PCI feedback cells of the terminal of only configuration dedicated channel to determine system, the system packet
It includes：Network side and the terminal for only configuring dedicated channel, wherein
The terminal for only configuring dedicated channel, is used for the network side reporting measurement reports；
The network side, the measurement report that the terminal for receiving the only configuration dedicated channel reports, and described in determination
When terminal supports uplink closed loop to send diversity, chip energy and noise ratio (Ec/No) value maximum and/or received signal code work(are selected
The maximum cell of rate (RSCP) value indicates the feedback cell of (PCI) as the precoding control of the terminal.
The network side is further used for, and after selecting the feedback cell of PCI of the terminal, passes through downlink space interface signaling
The feedback cell of the PCI of the terminal is allocated to the terminal.
The network side is further used for, and after selecting the feedback cell of PCI of the terminal, passes through wireless link
Or the feedback cell of the PCI of the terminal is allocated to the node B (NodeB) of the feedback cell by wireless link reallocation message.
The network side is further used for, and is no longer that Ec/No values are maximum in the feedback cell for knowing the PCI of the terminal
It is that terminal selection Ec/No values are maximum and/or the maximum cell work of RSCP values again and/or when the maximum cell of RSCP values
For the feedback cell of PCI, and the feedback cell of the PCI reselected is allocated to by the terminal by downlink space interface signaling.
The network side is further used for, and is reselected described by wireless link or wireless link reallocation message
The feedback cell of PCI be allocated to the NodeB of the feedback cell reselected.
The PCI feedback cell determination methods and system of a kind of terminal of only configuration dedicated channel provided by the present invention,
Network side receives the measurement report that the terminal of only configuration dedicated channel reports, and determines that the terminal supports uplink closed loop is sent to divide
When collection, the feedback cell that Ec/No values are maximum and/or the maximum cell of RSCP values is as the PCI of the terminal is selected.By this hair
Bright, the uplink closed loop for realizing the only terminal of configuration dedicated channel sends the PCI feedbacks of diversity so that only configures dedicated channel
Terminal gets the feedback cell of optimal PCI, so as to improve system performance.
Description of the drawings
Fig. 1 is the channel architecture schematic diagram that uplink closed loop sends diversity in the prior art；
The flow chart for the feedback cell determination method that Fig. 2 is the PCI of the embodiment of the present invention one；
The flow chart for the feedback cell determination method that Fig. 3 is the PCI of the embodiment of the present invention two；
Fig. 4 is that the feedback cell re-configuration of the PCI of the embodiment of the present invention three sets the flow chart of method；
Fig. 5 is that the feedback cell re-configuration of the PCI of the embodiment of the present invention four sets the flow chart of method.
Specific implementation mode
The technical solution of the present invention is further elaborated in the following with reference to the drawings and specific embodiments.
A kind of PCI of the terminal of only configuration dedicated channel provided by the present invention feeds back cell determination method, including：Network
Side receives the measurement report that the terminal of only configuration dedicated channel reports, and determines that the terminal supports uplink closed loop to send diversity
When, select chip energy and noise ratio (Ec/No) value maximum and/or received signal code power (RSCP, Received Signal
Code Power) feedback cell of the maximum cell of value as the PCI of the terminal.
Further, after selecting the feedback cell of PCI of the terminal, network side will be described by downlink space interface signaling
The feedback cell of the PCI of terminal is allocated to the terminal.
Further, after selecting the feedback cell of PCI of the terminal, network side is by wireless link or wirelessly
The feedback cell of the PCI of the terminal is allocated to the node B (NodeB) of the feedback cell by link reallocation message.
Further, when network side know the feedback cell of the PCI of the terminal be no longer Ec/No values it is maximum and/or
When the maximum cell of RSCP values, select that Ec/No values are maximum and/or the maximum cell of RSCP values is as PCI for the terminal again
Feedback cell, and the feedback cell of the PCI reselected is allocated to by the terminal by downlink space interface signaling.The network
The feedback cell of the PCI reselected is allocated to described heavy by side by wireless link or wireless link reallocation message
The NodeB of the feedback cell newly selected.
Cell determination method is fed back to the PCI of the terminal of the only configuration dedicated channel of the present invention with reference to specific embodiment
It is further elaborated on.
The feedback cell determination method of the PCI of the embodiment of the present invention one is as shown in Fig. 2, mainly include the following steps that：
Step 201, network side sending measuring control message is to the terminal for only configuring dedicated channel.
With the land Universal Mobile Communication System (UMTS, Universal Mobile Telecommunications System)
For ground wireless access network (UTRAN, UMTS Terrestrial Radio Access Network), network side it is wireless
Network controller (RNC, Radio Network Controller) sending measuring control message is to the end for only configuring dedicated channel
End.
Step 202, terminal reporting measurement reports are to network side.
Step 203, the measurement report that network side is reported according to terminal knows that the terminal has uplink closed loop transmitting capacity,
I.e. the terminal supports uplink closed loop to send diversity, to select chip energy and noise value (i.e. Ec/No values) maximum cell
The feedback cell of PCI as the terminal.
It should be noted that network side when receiving the measurement report that terminal reports, judges whether the terminal has uplink
Closed loop transmitting capacity；The uplink closed loop transmitting capacity of terminal is network side precognition, is not carried by measurement report.
Step 204, the feedback cell of PCI is allocated to this by downlink space interface signaling and only configures dedicated channel by network side
Terminal.
Wherein, downlink space interface signaling can be physical channel reallocation message, radio bearer foundation/re-matching/release message etc.
Deng by taking physical channel reallocation message as an example, network side is sent to the PCI for carrying the terminal in the physical channel reallocation message of terminal
Feedback cell information.
Step 205, network side is by wireless link message or wireless link reallocation message, by the PCI's of the terminal
Feedback cell is allocated to the node B (NodeB) of the feedback cell, i.e. network side is sent to the wireless link of NodeB and disappears
The information of the feedback cell of the PCI of the terminal is carried in breath or wireless link reallocation message.
The feedback cell determination method of the PCI of the embodiment of the present invention two is as shown in figure 3, mainly include the following steps that：
Step 301, network side sending measuring control message is to the terminal for only configuring dedicated channel.
Step 302, terminal reporting measurement reports are to network side.
Step 303, the measurement report that network side is reported according to terminal knows that the terminal has uplink closed loop transmitting capacity,
I.e. the terminal supports uplink closed loop to send diversity, to select received signal code piece to work best (i.e. the maximum cell of RSCP values)
The feedback cell of PCI as the terminal.
It should be noted that network side when receiving the measurement report that terminal reports, judges whether the terminal has uplink
Closed loop transmitting capacity；The uplink closed loop transmitting capacity of terminal is network side precognition, is not carried by measurement report.
Step 304, the feedback cell of PCI is allocated to this by downlink space interface signaling and only configures dedicated channel by network side
Terminal.
Wherein, downlink space interface signaling can be physical channel reallocation message, radio bearer foundation/re-matching/release message etc.
Deng by taking physical channel reallocation message as an example, network side is sent to the PCI for carrying the terminal in the physical channel reallocation message of terminal
Feedback cell information.
Step 305, network side is by wireless link message or wireless link reallocation message, by the PCI's of the terminal
Feedback cell is allocated to the NodeB of the feedback cell, i.e. network side is sent to the wireless link message or wireless of NodeB
The information of the feedback cell of the PCI of the terminal is carried in link reallocation message.
The feedback cell re-configuration of the PCI of the embodiment of the present invention three sets method as shown in figure 4, mainly including the following steps that：
Step 401, network side sending measuring control message is to the terminal for only configuring dedicated channel.
Step 402, terminal reporting measurement reports are to network side.
Step 403, the measurement report that network side is reported according to terminal knows that the feedback cell of the PCI of the terminal is not Ec/
The maximum cell of No values, therefore reselect feedback cell of the maximum cell of Ec/No values as the PCI of the terminal.
Step 404, by the feedback cell of PCI, (the Ec/No values reselected are maximum by downlink space interface signaling for network side
Cell) be allocated to the terminal for only configuring dedicated channel.
Wherein, downlink space interface signaling can be physical channel reallocation message, radio bearer foundation/re-matching/release message etc.
Deng by taking physical channel reallocation message as an example, network side is sent to the PCI for carrying the terminal in the physical channel reallocation message of terminal
Feedback cell (the maximum cell of Ec/No values reselected) information.
Step 405, network side is by wireless link message or wireless link reallocation message, by the PCI's of the terminal
Feedback cell (the maximum cell of Ec/No values reselected) is allocated to the NodeB of the feedback cell, i.e. network side is sent
To the PCI that the terminal is carried in the wireless link message or wireless link reallocation message of NodeB feedback cell (i.e. again
The maximum cell of Ec/No values of selection) information.
The feedback cell re-configuration of the PCI of the embodiment of the present invention four sets method as shown in figure 5, mainly including the following steps that：
Step 501, network side sending measuring control message is to the terminal for only configuring dedicated channel.
Step 502, terminal reporting measurement reports are to network side.
Step 503, the measurement report that network side is reported according to terminal knows that the feedback cell of the PCI of the terminal is not
The maximum cell of RSCP values, therefore reselect feedback cell of the maximum cell of RSCP values as the PCI of the terminal.
Step 504, by the feedback cell of PCI, (the RSCP values reselected are maximum by downlink space interface signaling for network side
Cell) be allocated to the terminal for only configuring dedicated channel.
Wherein, downlink space interface signaling can be physical channel reallocation message, radio bearer foundation/re-matching/release message etc.
Deng by taking physical channel reallocation message as an example, network side is sent to the PCI for carrying the terminal in the physical channel reallocation message of terminal
Feedback cell (the maximum cell of RSCP values reselected) information.
Step 505, network side is by wireless link message or wireless link reallocation message, by the PCI's of the terminal
Feedback cell (the maximum cell of RSCP values reselected) is allocated to the NodeB of the feedback cell, i.e. network side is sent
To the PCI that the terminal is carried in the wireless link message or wireless link reallocation message of NodeB feedback cell (i.e. again
The maximum cell of RSCP values of selection) information.
The PCI of the corresponding present invention only terminal of configuration dedicated channel feeds back cell determination method, and the present invention also provides one
The PCI feedback cells of the kind only terminal of configuration dedicated channel determine system, including：Network side and the end for only configuring dedicated channel
End.Wherein,
The terminal for only configuring dedicated channel, is used for network side reporting measurement reports；
Network side, the measurement report that the terminal for receiving the only configuration dedicated channel reports, and determine the terminal
When uplink closed loop being supported to send diversity, the PCI that Ec/No values are maximum and/or the maximum cell of RSCP values is as the terminal is selected
Feedback cell.
Further, network side, will be described by downlink space interface signaling after selecting the feedback cell of PCI of the terminal
The feedback cell of the PCI of terminal is allocated to the terminal.
Further, network side is after selecting the feedback cell of PCI of the terminal, by wireless link or wirelessly
The feedback cell of the PCI of the terminal is allocated to the NodeB of the feedback cell by link reallocation message.
Further, network side the feedback cell for knowing the PCI of the terminal be no longer Ec/No values it is maximum and/or
When the maximum cell of RSCP values, select that Ec/No values are maximum and/or the maximum cell of RSCP values is as PCI for the terminal again
Feedback cell, and the feedback cell of the PCI reselected is allocated to by the terminal by downlink space interface signaling.Network side is logical
It crosses wireless link or wireless link reallocation message and is allocated to the feedback cell of the PCI reselected and described select again
The NodeB for the feedback cell selected.
In conclusion the present invention realizes the PCI feedbacks of the uplink closed loop transmission diversity of the only terminal of configuration dedicated channel,
So that the terminal of only configuration dedicated channel gets the feedback cell of optimal PCI, so as to improve system performance.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of PCI of the terminal of only configuration dedicated channel feeds back cell determination method, which is characterized in that this method includes：
Network side receives the measurement report that the terminal of only configuration dedicated channel reports, and determines that the terminal supports uplink closed loop hair
When sending diversity, select chip energy and noise ratio (Ec/No) value maximum and/or received signal code power (RSCP) value maximum small
Area indicates the feedback cell of (PCI) as the precoding control of the terminal；
It is small that the network side by wireless link message, by the feedback cell of the PCI of the terminal is allocated to the feedback
The node B (NodeB) in area.
2. the PCI of the only terminal of configuration dedicated channel feeds back cell determination method according to claim 1, which is characterized in that
After selecting the feedback cell of PCI of the terminal, this method further comprises：
The feedback cell of the PCI of the terminal is allocated to the terminal by the network side by downlink space interface signaling.
3. the PCI of the only terminal of configuration dedicated channel feeds back cell determination method according to claim 1, which is characterized in that
After selecting the feedback cell of PCI of the terminal, this method further comprises：
The feedback cell of the PCI of the terminal is allocated to the feedback cell by the network side by wireless link reallocation message
Node B (NodeB).
4. feeding back cell determination method, feature according to the PCI for the terminal for only configuring dedicated channel described in claim 1,2 or 3
It is, this method further comprises：
When the network side knows that the feedback cell of the PCI of the terminal is no longer that Ec/No values are maximum and/or RSCP values are maximum
When cell, the feedback cell that Ec/No values are maximum and/or the maximum cell of RSCP values is as PCI is selected for the terminal again, and
The feedback cell of the PCI reselected is allocated to the terminal by downlink space interface signaling.
5. the PCI of the only terminal of configuration dedicated channel feeds back cell determination method according to claim 4, which is characterized in that
This method further comprises：
The network side is by wireless link or wireless link reallocation message by the feedback cell of the PCI reselected
It is allocated to the NodeB of the feedback cell reselected.
6. a kind of PCI feedback cells of the terminal of only configuration dedicated channel determine system, which is characterized in that the system includes：Net
Network side and the terminal for only configuring dedicated channel, wherein
The terminal for only configuring dedicated channel, is used for the network side reporting measurement reports；
The network side, the measurement report that the terminal for receiving the only configuration dedicated channel reports, and determine the terminal
When uplink closed loop being supported to send diversity, chip energy and noise ratio (Ec/No) value maximum and/or received signal code power are selected
(RSCP) the maximum cell of value indicates the feedback cell of (PCI) as the precoding control of the terminal；
The network side is additionally operable to after selecting the feedback cell of PCI of the terminal, will by wireless link message
The feedback cell of the PCI of the terminal is allocated to the node B (NodeB) of the feedback cell.
7. the PCI feedback cells of the only terminal of configuration dedicated channel determine system according to claim 6, which is characterized in that
The network side is further used for, after selecting the feedback cell of PCI of the terminal, by downlink space interface signaling by the end
The feedback cell of the PCI at end is allocated to the terminal.
8. the PCI feedback cells of the only terminal of configuration dedicated channel determine system according to claim 6, which is characterized in that
The network side is further used for, after selecting the feedback cell of PCI of the terminal, by wireless link reallocation message by institute
The feedback cell for stating the PCI of terminal is allocated to the node B (NodeB) of the feedback cell.
9. feeding back cell according to the PCI for the terminal for only configuring dedicated channel described in claim 6,7 or 8 determines system, feature
Be, the network side is further used for, the feedback cell for knowing the PCI of the terminal be no longer Ec/No values it is maximum and/or
When the maximum cell of RSCP values, select that Ec/No values are maximum and/or the maximum cell of RSCP values is as PCI for the terminal again
Feedback cell, and the feedback cell of the PCI reselected is allocated to by the terminal by downlink space interface signaling.
10. the PCI feedback cells of the only terminal of configuration dedicated channel determine system according to claim 9, which is characterized in that
The network side is further used for, by wireless link or wireless link reallocation message by the PCI's reselected
Feedback cell is allocated to the NodeB of the feedback cell reselected.
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| CN201110309610.6A CN103051428B (en) | 2011-10-13 | 2011-10-13 | The only PCI feedback cell determination methods and system of the terminal of configuration dedicated channel |
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| CN101207554A (en) * | 2006-12-20 | 2008-06-25 | 中兴通讯股份有限公司 | System and method for grouping scheduling of wireless resource in mobile communication network |
| CN101931508A (en) * | 2009-06-23 | 2010-12-29 | 华为技术有限公司 | PCI (Pre-Coding Indicator) coding method and device of DC-HSDPA (Double Carrier-High Speed Downlink Packet Access) and TxAA (Transit Adaptive Antennas Array) coexisted scene |
| CN101998556A (en) * | 2009-08-11 | 2011-03-30 | 中兴通讯股份有限公司 | Method and system for switching user equipment to carrier aggregation subdistrict |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9167495B2 (en) * | 2007-06-15 | 2015-10-20 | Qualcomm Incorporated | Cell selection |
| CN102035584B (en) * | 2009-09-29 | 2014-04-02 | 华为技术有限公司 | Method for determining uplink transmission diversity mode and communication device |
| EP2522192B1 (en) * | 2010-01-08 | 2018-07-04 | InterDigital Patent Holdings, Inc. | Method and apparatus for performing discontinuous reception and/or discontinuous transmission for a multi-carrier/multi-cell operation |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207554A (en) * | 2006-12-20 | 2008-06-25 | 中兴通讯股份有限公司 | System and method for grouping scheduling of wireless resource in mobile communication network |
| CN101931508A (en) * | 2009-06-23 | 2010-12-29 | 华为技术有限公司 | PCI (Pre-Coding Indicator) coding method and device of DC-HSDPA (Double Carrier-High Speed Downlink Packet Access) and TxAA (Transit Adaptive Antennas Array) coexisted scene |
| CN101998556A (en) * | 2009-08-11 | 2011-03-30 | 中兴通讯股份有限公司 | Method and system for switching user equipment to carrier aggregation subdistrict |
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