CN103596638B - Communication means and device - Google Patents
Communication means and device Download PDFInfo
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- CN103596638B CN103596638B CN201280017781.4A CN201280017781A CN103596638B CN 103596638 B CN103596638 B CN 103596638B CN 201280017781 A CN201280017781 A CN 201280017781A CN 103596638 B CN103596638 B CN 103596638B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0067—Rate matching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention relates to a kind of communication means and device.Including: when carrying out CSI RS configuration in LTE system, obtain RE number, in very first time threshold value, carry out rate-matched according to described RE number；According to the matching result of described rate-matched, select current RE number.Thus achieve in some configuration transient processes of LTE, it is possible to use PDSCH packet is correctly resolved by correct RE number, will not cause resolving unsuccessfully lost data packets because of the state of eNB and UE is inconsistent.When carrying out MIMO mode configuration, on non-MBSFN sub-frame, carry out the transmission of downlink data.The data that thus can ensure that in transient process in MBSFN sub-frame will not be lost.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of communication means and device.
Background technology
At present, in Long Term Evolution (Long Term Evolution, LTE) system, at base station layer 3
(evolved NodeB Layer3, eNB L3) to subscriber equipment (User Equipment, UE) and
Base station layer 2(evolved NodeB Layer2, eNB L2) carry out channel state information reference signals (Channel
State Information-Reference Signals, CSI-RS) configuration during, may deposit
In the situation that PDSCH packet can not correctly be resolved, thus cause the loss of packet.It addition,
In multiple-input and multiple-output (Multiple Input Multiple Output, MIMO) system, carry out MIMO
Mode handover procedure there is also similar problem.
Summary of the invention
Embodiments provide a kind of communication means and device, lose solving packet in above scene
The problem lost.
In first aspect, embodiments providing a kind of communication means, described method includes:
Obtain RE number, in very first time threshold value, carry out rate-matched according to described RE number；
According to the matching result of described rate-matched, select current RE number.
In second aspect, embodiments providing a kind of communication means, described method includes:
Carrying out MIMO mode configuration when, on non-MBSFN sub-frame, carry out the transmission of downlink data.
In the third aspect, embodiments providing a kind of communicator, described device includes:
Matching unit, is used for obtaining RE number, in very first time threshold value, carries out speed according to described RE number
Rate is mated, and sends the matching result of described rate-matched to selecting unit；
Select unit, for receiving the matching result of the described rate-matched that described matching unit sends, root
According to the matching result of described rate-matched, select current RE number.
In fourth aspect, embodiments providing a kind of communicator, described device includes:
Processing unit, for, carrying out MIMO mode configuration when, carrying out on non-MBSFN sub-frame
The transmission of downlink data.
At the 5th aspect, embodiments providing a kind of communicator, described device includes:
Network interface；
Processor；
Memorizer；
Physical store application program in which memory, described application program includes can be used for making described
Processor and the instruction of described system execution procedure below:
Obtain RE number, in very first time threshold value, carry out rate-matched according to described RE number；
According to the matching result of described rate-matched, select current RE number.
At the 6th aspect, embodiments providing a kind of communicator, described device includes:
Network interface；
Processor；
Memorizer；
Physical store application program in which memory, described application program includes can be used for making described
Processor and the instruction of described system execution procedure below:
Carrying out MIMO mode configuration when, on non-MBSFN sub-frame, carry out the transmission of downlink data.
In the embodiment of the present invention, when LTE system carries out CSI-RS configuration, obtain RE number, the
In one time threshold, carry out rate-matched according to described RE number；According to the matching result of described rate-matched,
Select current RE number.Thus achieve in some configuration transient processes of LTE, it is possible to use correct
PDSCH packet is correctly resolved by RE number, will not solve because of the state of eNB and UE inconsistent causing
Analyse unsuccessfully lost data packets.When carrying out MIMO mode configuration, under carrying out on non-MBSFN sub-frame
The transmission of row data.The data that thus can ensure that in transient process in MBSFN sub-frame will not be lost.
Accompanying drawing explanation
Fig. 1 is to carry out the transient state schematic diagram during CSI-RS configuration in LTE system;
Fig. 2 is TM9 transient state schematic diagram in TM3 handoff procedure in mimo system;
The communication means flow chart that Fig. 3 provides for the embodiment of the present invention one；
The communicator schematic diagram that Fig. 4 provides for the embodiment of the present invention two；
The communicator schematic diagram that Fig. 5 provides for the embodiment of the present invention three;
The communication means flow chart that Fig. 6 provides for the embodiment of the present invention four；
The communicator schematic diagram that Fig. 7 provides for the embodiment of the present invention five；
The communicator schematic diagram that Fig. 8 provides for the embodiment of the present invention six.
Detailed description of the invention
Below by drawings and Examples, technical scheme is described in further detail.
Fig. 1 is to carry out the transient state schematic diagram during CSI-RS configuration in LTE system.As it is shown in figure 1,
Accurately it is sent to UE, eNB L3 needs to first pass through Radio Resource control to ensure to configure CSI-RS message
System (Radio Resource Control, RRC) connects heavily pairing UE and carries out CSI-RS configuration, and
After eNB L3 receives the CSI-RS configuration completion message of UE feedback, then by inside of base station message to eNB
L2 carries out CSI-RS configuration, and therefore, CSI-RS configuration is come into force and exists in sequential by UE and eNB L2
Priority, we claim UE to eNB L3 feedback CSI-RS configuration completion message to eNB L2 to eNB L3
The time period of feedback CSI-RS configuration completion message is transient state time section.In transient state time section, due to UE
Entered into force CSI-RS configuration, and eNB L2 the most do not come into force CSI-RS configuration, then UE is entering
Row downlink physical is shared channel (Physical Downlink Share Channel, PDSCH) and is unpacked and speed
The when of rate coupling, resource element (Resource Element, the RE) number of use is deduction CSI-RS
The RE number taken.And now eNB L2 is also not detected by CSI-RS configuration take-effective, therefore, it sends
The RE number that PDSCH bag uses is the RE number not deducting CSI-RS.Therefore, eNB L2 and UE is at PDSCH
The when of rate-matched, the RE number of use is inconsistent, can cause the PDSCH packet of transient state time section not
Can correctly be resolved.
In multiple-input and multiple-output (Multiple Input Multiple Output, MIMO) system,
Carry out MIMO mode handoff procedure there is also similar problem.Fig. 2 be in mimo system TM9 to TM3
Transient state schematic diagram in handoff procedure.As in figure 2 it is shown, transmission mode 9(Transmission Mode,
TM9) to transmission mode 3(Transmission Mode, TM3) switching time, eNB L3 is by RRC even
Connecing the MIMO mode that weight dispensing UE configuration is new, eNB L3 notifies eNB L2 with Downlink Control Information simultaneously
1A (Downlink Control Information-1A, DCI-1A) form sends downlink physical control channel
(Physical Downlink Control Channel, PDCCH) data, UE feeds back MIMO to eNB L3
Pattern configurations completes, and eNB L3 notifies the MIMO mode that eNB L2 is new, and eNB L2 is with new MIMO
DCI format corresponding to pattern carries out PDCCH data transmission. wherein, from eNB L3 notify eNB L2 with
DCI-1A form sends PDCCH data to start, and notifies eNB L2 with new MIMO mode pair to eNB L3
The DCI format answered carries out PDCCH data transmission, and section is referred to as transient state time section during this period of time.When transient state
Between in section, UE, would not be at Multicast Broadcast Single Frequency Network (Multicast after the TM3 that comes into force
Broadcast Single Frequency Network, MBSFN) receive PDCCH packet above subframe,
If in this section of transient state time section, base station still sends data on MBSFN sub-frame, then PDCCH
Packet will necessarily be lost.
There are currently no relevant scheme to specify in these transient processes, how eNB/UE carries out data process,
Ensure that packet will not be lost.
In the embodiment of the present invention, when LTE system carries out CSI-RS configuration, obtain RE number,
In very first time threshold value, carry out rate-matched according to described RE number；Coupling knot according to described rate-matched
Really, current RE number is selected.Thus achieve in some configuration transient processes of LTE, it is possible to use
PDSCH packet is correctly resolved by correct RE number, will not because of the state of eNB and UE not
Unanimously cause resolving unsuccessfully lost data packets.
In the embodiment of the present invention, when carrying out MIMO mode configuration, enter on non-MBSFN sub-frame
The transmission of row downlink data.The data that thus can ensure that in transient process in MBSFN sub-frame will not be lost
Lose.
The communication means flow chart that Fig. 3 provides for the embodiment of the present invention one.As it is shown on figure 3, described method
Including:
Step 301, obtains RE number, in very first time threshold value, carries out rate-matched according to described RE number.
Owing to the time required for carrying out rate-matched is all the integral multiple of TTI, and carry out rate-matched
The required shortest time is 8 TTI, and therefore, described very first time threshold value is Transmission Time Interval
The integral multiple of (Transmission Time Interval, TTI), and not less than 8 TTI.
Step 302, according to the matching result of described rate-matched, selects current RE number.
Specifically, the method that the embodiment of the present invention provides, under a kind of implementation, UE obtains deduction letter
Oneth RE number of channel state information reference signal CSI-RS RE number, in very first time threshold value, according to institute
State a RE number and carry out first rate coupling;UE judges that described first rate coupling is the most correct;If it is described
The matching result of first rate coupling is correct, then select a described RE number as current RE number, otherwise,
Select not deduct a RE number of CSI-RS RE number as current RE number.
The method that the embodiment of the present invention provides, under another kind of implementation, UE obtains and does not deduct CSI-RS
2nd RE number of RE number, carries out the second rate-matched according to described 2nd RE number；UE judges described second
Rate-matched is the most correct;If the matching result of described second rate-matched is correct, then select described the
Two RE numbers are as current RE number, otherwise, select a RE number of deduction CSI-RS RE number as currently
RE number.
During the present invention implements, UE obtains RE number, in very first time threshold value, carries out according to described RE number
Rate-matched；According to the matching result of described rate-matched, select current RE number.Thus achieve at LTE
Some configuration transient processes in, it is possible to use PDSCH packet is correctly resolved by correct RE number,
Will not cause resolving unsuccessfully lost data packets because of the state of eNB and UE is inconsistent.
The work process for communication means that above-described embodiment describes, what following embodiment described fills for communication
The work process put.The communicator schematic diagram that Fig. 4 provides for the embodiment of the present invention two.As shown in Figure 4,
The device that the embodiment of the present invention provides includes: matching unit 401 and selection unit 402.
Matching unit 401, is used for obtaining RE number, in very first time threshold value, carries out according to described RE number
Rate-matched, sends the matching result of described rate-matched to selecting unit.
Select unit 402, for receiving the matching result of the described rate-matched that described matching unit sends,
According to the matching result of described rate-matched, select current RE number.
Wherein, owing to the time required for carrying out rate-matched is all the integral multiple of TTI, and speed is carried out
Shortest time required for rate coupling is 8 TTI, therefore, and the described very first time threshold value in described device
For the integral multiple of Transmission Time Interval (Transmission Time Interval, TTI), and it is not less than
8 TTI.
Specifically, the device that the embodiment of the present invention provides, under a kind of implementation:
Described matching unit 401 specifically for, obtain deduction CSI-RS RE number a RE number, according to
A described RE number carries out first rate coupling.
Described selection unit 402 specifically for, if the matching result of described first rate coupling is correct,
Then select a described RE number as current RE number, otherwise, select not deduct CSI-RS RE number
2nd RE number is as current RE number.
The device that the embodiment of the present invention provides, under another kind of implementation:
Described matching unit 401 specifically for, obtain and do not deduct the 2nd RE number of CSI-RS RE number,
The second rate-matched is carried out according to described 2nd RE number.
Described selection unit 402 specifically for, if the matching result of described second rate-matched is correct,
Then select described 2nd RE number as current RE number, otherwise, then select the of deduction CSI-RS RE number
One RE number is as current RE number.
During the present invention implements, matching unit obtains RE number, in very first time threshold value, according to described RE
Number carries out rate-matched；Select unit according to the matching result of described rate-matched, select current RE number.
Thus achieve in some configuration transient processes of LTE, it is possible to use correct RE number is to PDSCH number
Correctly resolve according to bag, will not because of the state of eNB and UE inconsistent cause resolving unsuccessfully lose number
According to bag.
The work process for communicator that above-described embodiment describes, following embodiment describe for another kind
The work process of communicator.The communicator schematic diagram that Fig. 5 provides for the embodiment of the present invention three.Such as Fig. 5
Shown in, the device that the embodiment of the present invention provides includes: network interface 501, processor 502 and memorizer
503.System bus 504 is used for connecting network interface 501, processor 502 and memorizer 503.
Network interface 501 is for communicating with other equipment.
Memorizer 503 can be permanent memory, such as hard disk drive and flash memory, has in memorizer 503
There are software module and device driver.Software module is able to carry out the various functions of said method of the present invention
Module；Device driver can be network and interface drive program.
On startup, these component softwares are loaded in memorizer 503, are then accessed by processor 502
And perform such as to give an order:
Obtain RE number, in very first time threshold value, carry out rate-matched according to described RE number；
According to the matching result of described rate-matched, select current RE number.
Wherein, owing to the time required for carrying out rate-matched is all the integral multiple of TTI, and speed is carried out
Shortest time required for rate coupling is 8 TTI, therefore, and the described very first time threshold value in described device
For the integral multiple of Transmission Time Interval (Transmission Time Interval, TTI), and it is not less than
8 TTI.
Specifically, the device that the embodiment of the present invention provides, under a kind of implementation:
Described application program can be used for making described processor and described system perform to obtain RE number, when first
Between in threshold value, the instruction carrying out rate matching procedure according to described RE number is: obtain deduction CSI-RS RE
Oneth RE number of number, in very first time threshold value, carries out first rate coupling according to a described RE number.
Described application program can be used for making the described matching result according to described rate-matched, selects current RE
The instruction of number process is: if the matching result of described first rate coupling is correct, then select described first
RE number is as current RE number, otherwise, selects the 2nd RE number not deducting CSI-RS RE number as working as
Front RE number.
The device that the embodiment of the present invention provides, under another kind of implementation:
Described application program can be used for making described processor and described system perform to obtain RE number, when first
Between in threshold value, the instruction carrying out rate matching procedure according to described RE number is: obtains and does not deduct CSI-RS
2nd RE number of RE number, carries out the second rate-matched according to described 2nd RE number.
Described application program can be used for making the described matching result according to described rate-matched, selects current RE
The instruction of number process is: if the matching result of described second rate-matched is correct, then select described second
RE number is as current RE number, otherwise, selects a RE number of deduction CSI-RS RE number as current RE
Number.
During the present invention implements, application program obtains RE number, in very first time threshold value, according to described RE
Number carries out rate-matched；According to the matching result of described rate-matched, select current RE number.It is achieved in
In some configuration transient processes of LTE, it is possible to use PDSCH packet carries out by correct RE number
Correct parsing, will not cause resolving unsuccessfully lost data packets because of the state of eNB and UE is inconsistent.
Above-mentioned several embodiments describe in LTE system, during transient state during CSI-RS configures
In section, by selecting correct RE number to carry out the correct parsing of PDSCH packet, thus solve because of
The state inconsistent PDSCH of causing packet for eNB and UE resolves unsuccessfully and the problem of lost data packets.
Following several embodiments describe in the transient state period in TM3 handoff procedure of the TM9 in mimo system,
Due to the inconsistent way to solve the problem causing data parsing mistake of the state of eNB and UE and device.
The process flow figure of the transient state that Fig. 6 provides for the embodiment of the present invention four.As shown in Figure 6, originally
The method that inventive embodiments provides includes:
Step 601, carrying out MIMO mode configuration when, carries out descending on non-MBSFN sub-frame
The transmission of data.
Specifically, eNB carry out MIMO mode heavily join when, under carrying out on non-MBSFN sub-frame
The transmission of row data, does not carries out the transmission of downlink data, it is ensured that MBSFN on MBSFN sub-frame
Data in subframe will not be lost.
In the embodiment of the present invention, eNB, when carrying out MIMO mode configuration, enters on non-MBSFN sub-frame
The transmission of row downlink data.The data that thus can ensure that in transient process in MBSFN sub-frame will not be lost.
The processing means schematic diagram of the transient state that Fig. 7 provides for the embodiment of the present invention five.As it is shown in fig. 7, this
The device that inventive embodiments provides includes: processing unit 701.
Processing unit 701, for when carrying out MIMO mode configuration, carrying out on non-MBSFN sub-frame
The transmission of downlink data.
In the embodiment of the present invention, eNB, when carrying out MIMO mode configuration, enters on non-MBSFN sub-frame
The transmission of row downlink data.The data that thus can ensure that in transient process in MBSFN sub-frame will not be lost.
The processing means schematic diagram of the transient state that Fig. 8 provides for the embodiment of the present invention six.As shown in Figure 8, originally
The device that inventive embodiments provides includes: network interface 801, processor 802 and memorizer 803.System
Bus 804 is used for connecting network interface 801, processor 802 and memorizer 803.
Network interface 801 is for communicating with other equipment.
Memorizer 803 can be permanent memory, such as hard disk drive and flash memory, has in memorizer 803
There are software module and device driver.Software module is able to carry out the various functions of said method of the present invention
Module；Device driver can be network and interface drive program.
On startup, these component softwares are loaded in memorizer 803, are then accessed by processor 802
And perform such as to give an order:
When carrying out MIMO mode configuration, on non-MBSFN sub-frame, carry out the transmission of downlink data.
In the embodiment of the present invention, eNB, when carrying out MIMO mode configuration, enters on non-MBSFN sub-frame
The transmission of row downlink data.The data that thus can ensure that in transient process in MBSFN sub-frame will not be lost.
Professional should further appreciate that, describes in conjunction with the embodiments described herein
The unit of each example and algorithm steps, it is possible to come with electronic hardware, computer software or the combination of the two
Realize, in order to clearly demonstrate the interchangeability of hardware and software, the most according to function
Generally describe composition and the step of each example.These functions are come with hardware or software mode actually
Perform, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can be to often
Individual specifically should be used for use different device to realize described function, but this realization it is not considered that
Beyond the scope of this invention.
The device described in conjunction with the embodiments described herein or the step of algorithm can use hardware, process
The software module that device performs, or the combination of the two implements.Software module can be placed in random access memory
(RAM), internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable ROM,
Other form any well known in depositor, hard disk, moveable magnetic disc, CD-ROM or technical field
Storage medium in.
Above-described detailed description of the invention, is carried out the purpose of the present invention, technical scheme and beneficial effect
Further describe, be it should be understood that the foregoing is only the present invention detailed description of the invention and
, the protection domain being not intended to limit the present invention, all within the spirit and principles in the present invention, done
Any modification, equivalent substitution and improvement etc., should be included within the scope of the present invention.
Claims (6)
1. a communication means, it is characterised in that described method includes:
Obtain RE number, in very first time threshold value, carry out rate-matched according to described RE number；
According to the matching result of described rate-matched, select current RE number；
Described acquisition RE number, in very first time threshold value, carries out rate-matched according to described RE number and includes:
Obtain a RE number of deduction channel state information reference signals CSI-RS RE number, in very first time threshold value
In, carry out first rate coupling according to a described RE number；
The described matching result according to described rate-matched, selects current RE number to specifically include: if described
The matching result of first rate coupling is correct, then select a described RE number as current RE number, otherwise,
Select not deduct the 2nd RE number of CSI-RS RE number as current RE number；
Or,
Described acquisition RE number, in very first time threshold value, carries out rate-matched according to described RE number and includes:
Obtain the 2nd RE number not deducting CSI-RS RE number, carry out the second speed according to described 2nd RE number
Coupling；
The described matching result according to described rate-matched, selects current RE number to specifically include: if described
The matching result of the second rate-matched is correct, then select described 2nd RE number as current RE number, otherwise,
Select a RE number of deduction CSI-RS RE number as current RE number.
2. communication means as claimed in claim 1, it is characterised in that described very first time threshold value is for passing
The integral multiple of defeated time interval TTI, and described very first time threshold value is not less than 8 TTI.
3. a communicator, it is characterised in that described device includes:
Matching unit, is used for obtaining RE number, in very first time threshold value, carries out speed according to described RE number
Rate is mated, and sends the matching result of described rate-matched to selecting unit；
Select unit, for receiving the matching result of the described rate-matched that described matching unit sends, root
According to the matching result of described rate-matched, select current RE number；
Described matching unit specifically for, obtain deduction CSI-RS RE number a RE number, when first
Between in threshold value, carry out first rate coupling according to a described RE number；
Described selection unit specifically for, if the matching result of described first rate coupling is correct, then select
Select a described RE number as current RE number, otherwise, select not deduct the second of CSI-RS RE number
RE number is as current RE number；
Or,
Described matching unit specifically for, obtain and do not deduct the 2nd RE number of CSI-RS RE number, according to
Described 2nd RE number carries out the second rate-matched；
Described selection unit specifically for, if the matching result of described second rate-matched is correct, then select
Select described 2nd RE number as current RE number, otherwise, then select a RE of deduction CSI-RS RE number
Number is as current RE number.
4. communicator as claimed in claim 3, it is characterised in that first in described matching unit
Time threshold is the integral multiple of TTI, and described very first time threshold value is not less than 8 TTI.
5. a communicator, it is characterised in that described device includes:
Network interface；
Processor；
Memorizer；
Physical store application program in which memory, described application program includes can be used for making described
Processor and the instruction of system execution procedure below:
Obtain RE number, in very first time threshold value, carry out rate-matched according to described RE number；
According to the matching result of described rate-matched, select current RE number；
Described application program can be used for making described processor and described system perform to obtain RE number, when first
Between in threshold value, the instruction carrying out rate matching procedure according to described RE number is: obtain deduction CSI-RS RE
Oneth RE number of number, in very first time threshold value, carries out first rate coupling according to a described RE number；
Described application program can be used for making the described matching result according to described rate-matched, selects current RE
The instruction of number process is: if the matching result of described first rate coupling is correct, then select described first
RE number is as current RE number, otherwise, selects the 2nd RE number not deducting CSI-RS RE number as working as
Front RE number；
Or,
Described application program can be used for making described processor and described system perform to obtain RE number, when first
Between in threshold value, the instruction carrying out rate matching procedure according to described RE number is: obtains and does not deduct CSI-RS
2nd RE number of RE number, carries out the second rate-matched according to described 2nd RE number；
Described application program can be used for making the described matching result according to described rate-matched, selects current RE
The instruction of number process is: if the matching result of described second rate-matched is correct, then select described second
RE number is as current RE number, otherwise, selects a RE number of deduction CSI-RS RE number as current RE
Number.
6. communicator as claimed in claim 5, it is characterised in that described in described application program
Very first time threshold value is the integral multiple of TTI, and described very first time threshold value is not less than 8 TTI.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/086995 WO2014094267A1 (en) | 2012-12-20 | 2012-12-20 | Communication method and device |
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| CN103596638A CN103596638A (en) | 2014-02-19 |
| CN103596638B true CN103596638B (en) | 2016-10-26 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325739A (en) * | 2007-06-14 | 2008-12-17 | 北京三星通信技术研究有限公司 | Method for transmitting upstream data and upstream control signaling |
| CN102239649A (en) * | 2008-12-02 | 2011-11-09 | Lg电子株式会社 | Method for transmitting reference signals in a downlink multiple input multiple output system |
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| KR101850721B1 (en) * | 2010-03-24 | 2018-04-20 | 엘지전자 주식회사 | Method and apparatus for reducing inter-cell interference in radio communication system |
| US9130725B2 (en) * | 2010-11-02 | 2015-09-08 | Qualcomm Incorporated | Interaction of PDSCH resource mapping, CSI-RS, and muting |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325739A (en) * | 2007-06-14 | 2008-12-17 | 北京三星通信技术研究有限公司 | Method for transmitting upstream data and upstream control signaling |
| CN102239649A (en) * | 2008-12-02 | 2011-11-09 | Lg电子株式会社 | Method for transmitting reference signals in a downlink multiple input multiple output system |
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| CN103596638A (en) | 2014-02-19 |
| WO2014094267A1 (en) | 2014-06-26 |
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