CN110138536A - Sending method, device and the storage medium of Physical Downlink Control Channel - Google Patents
Sending method, device and the storage medium of Physical Downlink Control Channel Download PDFInfo
- Publication number
- CN110138536A CN110138536A CN201910500397.3A CN201910500397A CN110138536A CN 110138536 A CN110138536 A CN 110138536A CN 201910500397 A CN201910500397 A CN 201910500397A CN 110138536 A CN110138536 A CN 110138536A
- Authority
- CN
- China
- Prior art keywords
- pdcch
- transmission
- channel
- transmission power
- network equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000003860 storage Methods 0.000 title claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 154
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 76
- 238000012546 transfer Methods 0.000 claims abstract description 56
- 230000002159 abnormal effect Effects 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 22
- 230000006870 function Effects 0.000 claims description 17
- 230000001976 improved effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 12
- 238000004590 computer program Methods 0.000 description 11
- 239000002245 particle Substances 0.000 description 7
- 125000004122 cyclic group Chemical group 0.000 description 5
- 230000007774 longterm Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- NUOYJPPISCCYDH-BYPYZUCNSA-N (2s)-1-(2,2,2-trifluoroacetyl)pyrrolidine-2-carbonyl chloride Chemical compound FC(F)(F)C(=O)N1CCC[C@H]1C(Cl)=O NUOYJPPISCCYDH-BYPYZUCNSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 1
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000003542 behavioural effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000021186 dishes Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003238 somatosensory effect Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
Abstract
This application discloses a kind of sending method of Physical Downlink Control Channel, device and storage mediums, in this application, in the case where down channel quality is abnormal, still minimum polymerization grade scheduling transmission resources are used, it avoids being transferred to bigger polymerization grade and carrys out scheduling transmission resources, the transfer resource that transmission PDCCH is used is reduced, to increase the resource that transmission PDSCH is used, the throughput of transmission services data can be improved；In addition, sending PDCCH on the transfer resource of scheduling using the transmission power after lifting, the anti-interference ability that down channel quality deteriorates bring transmission PDCCH is improved, the reliability of PDCCH transmission can be increased.
Description
Technical field
The present invention relates to wireless communication field more particularly to a kind of sending method of Physical Downlink Control Channel, device and
Storage medium.
Background technique
In 3GPP (third generation partner program long term evolution) agreement, evolution base station (evolved nodeB,
ENodeB business datum) is sent to user equipment (user equipment, UE) by PDSCH (Physical Downlink Shared Channel),
Multiple UE in cell in attachment state can be in a shared manner in Physical Downlink Shared Channel (physical downlink
Shared channel, PDSCH) on receive business datum.It is carried in PDSCH in order to ensure UE can be properly received and decode
Business datum, in the subframe of current scheduling in addition to Physical Downlink Control Channel (physical downlink can be sent
Control channel, PDCCH), synchronization signal (synchronous signal, SS), reference signal (reference
Signal, RS) etc. other signals.When the channel quality of down channel is poor, eNodeB distributes more transfer resources and gives
Other signals such as PDCCH, SS and RS, however dispatch downlink transfer resource quantity be it is fixed, be correspondingly allocated to PDSCH
The quantity of transfer resource can reduce, the throughput of transmission services data can reduce for the UE in cell, thus how
The throughput for improving transmission services data is current urgent problem to be solved.
Summary of the invention
The embodiment of the present invention provides sending method, device and the storage medium of a kind of Physical Downlink Control Channel, in downlink
In the case that channel quality declines, PDCCH is still sent using minimal number of transfer resource, while improving the hair of PDCCH
It penetrates power, improves the reliability of PDCCH transmission, can be reduced PDCCH in this way to the occupancy of transfer resource, it will be more right in resource block
Transfer resource distribute to PDSCH, improve the throughput of user data on PDSCH.
In a first aspect, this application provides a kind of sending methods of Physical Downlink Control Channel, comprising:
When the channel quality of down channel is abnormal, the network equipment according to minimum polymerization grade scheduling transmission resources,
In, minimum polymerization grade is that the least polymerization grade of transfer resource is indicated in a variety of polymerization grades of PDCCH support；The network equipment
PDCCH is emitted with the first transmission power on the transfer resource of scheduling；Wherein, the second transmission power is the channel matter of down channel
The transmission power that PDCCH is used when amount is normal, the first transmission power are greater than the second transmission power.
Second aspect, this application provides a kind of sending devices of Physical Downlink Control Channel, comprising:
Processing unit, when the channel quality of down channel is abnormal, according to minimum polymerization grade scheduling transmission resources；Its
In, the minimum polymerization grade is the least polymerization grade of transfer resource in a variety of polymerization grades of PDCCH support；
Transmit-Receive Unit, for the network equipment with first transmission power transmission on the transfer resource of scheduling
PDCCH；Wherein, the transmission power of the second transmission power is the channel quality of the down channel when being normal PDCCH, described
One transmission power is greater than second transmission power.
On the other hand, the embodiment of the invention provides a kind of sending device of Physical Downlink Control Channel, which is used for
The function of above method network equipment behavior in practice.The function can also be executed by hardware realization by hardware
Corresponding software realization.The hardware or software include one or more modules corresponding with above-mentioned function.
It include processor and transmitter in the structure of the network equipment in a possible design, the processor is matched
It is set to and the network equipment is supported to execute corresponding function in the above method.The transmitter is for supporting the network equipment and terminal device
Between communication, to terminal device send the above method involved in information or instruction.The network equipment can also wrap
Memory is included, the memory saves the necessary program instruction in base station and data for coupling with processor.
The another aspect of the application provides a kind of computer storage medium, including instruction, when run on a computer,
So that computer executes the method as described in any one of each possible embodiment of first aspect to first aspect.
The another aspect of the application provides a kind of computer program product comprising instruction, when run on a computer,
So that computer executes the method as described in any one of each possible embodiment of first aspect to first aspect.
Implement embodiments herein, when the channel quality of down channel is deteriorated, rule is lifted according to preset power
First transmission power is lifted to obtain the second transmission power, according to minimum polymerization grade scheduling transmission resources, in scheduling
PDCCH is sent using the second transmission power on transfer resource.In this way when the channel quality of down channel deteriorates, still make
It with minimum polymerization grade scheduling transmission resources, avoids carrying out scheduling transmission resources using bigger polymerization grade, reduces transmission PDCCH
The throughput of transmission services data can be improved to increase the resource that transmission PDSCH is used in the transfer resource used；Separately
Outside, PDCCH is sent on the transfer resource of scheduling using the transmission power after lifting, improve down channel quality and deteriorate bring
The anti-interference ability for transmitting PDCCH can increase the reliability of PDCCH transmission.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of communication system provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram of the sending method of Physical Downlink Control Channel provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of device provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another device provided in an embodiment of the present invention.
Specific embodiment
Fig. 1 be the present embodiments relate to a kind of communication system architecture schematic diagram, the communication system includes that network is set
Standby and at least one terminal device.Fig. 1 shows in the cell of the network equipment 100 and is populated with terminal device 100 and terminal device
102 network equipments 100 and terminal device 101 are communicated with terminal device 102.The communication system can be global mobile communication
System (global system for mobile communication, GSM), CDMA (code division
MultipleAccess, CDMA) system, wideband code division multiple access (wideband code division multiple access,
WCDMA) system, worldwide interoperability for microwave accesses (worldwide interoperability formicrowave access,
WiMAX) system, long term evolution (long term evolution, LTE) system, 5G communication system (such as (new that newly eats dishes without rice or wine
Radio, NR) system, the communication system (such as communication system of LTE technology and NR technological incorporation) of a variety of communication technologys fusion,
Or subsequent evolution communication systems.The form and quantity of base station and terminal device shown in Fig. 1 are only used for illustrating, and do not constitute
Restriction to the embodiment of the present invention.
Terminal device in the application is a kind of equipment with wireless communication function, can be deployed in land, including
It is indoor or outdoors, hand-held, wearable or vehicle-mounted；(such as steamer) can also be deployed on the water surface；(example in the sky can also be disposed
On such as aircraft, balloon and satellite).The terminal device can be mobile phone (mobile phone), tablet computer (Pad), band
Computer, virtual reality (virtual reality, VR) terminal device, augmented reality of radio transmission-receiving function
(augmentedreality, AR) terminal device, the wireless terminal in Industry Control (industrial control), nobody drives
Sail the wireless terminal in (selfdriving), the wireless terminal in tele-medicine (remote medical), smart grid
The wireless terminal in wireless terminal, transportation safety (transportation safety) in (smart grid), smart city
The wireless terminal etc. in wireless terminal, wisdom family (smarthome) in (smart city).Terminal device is also possible to
Handheld device, mobile unit, wearable device with wireless communication function calculate equipment or are connected to radio modem
Other processing equipments etc..Terminal device can be called different titles in different networks, such as: terminal device, access
Terminal, subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, nothing
Line communication equipment, user agent or user apparatus, cellular phone, wireless phone, session initiation protocol (session
Initiationprotocol, SIP) phone, wireless local loop (wireless local loop, WLL) stand, individual digital
Terminal device etc. in processing (personal digital assistant, PDA), 5G network or future evolution network.
The network equipment in the application is referred to as base station equipment, is that one kind is deployed in wireless access network to provide nothing
The equipment of line communication function, including but not limited to: base station (such as: BTS (base transceiver station, BTS), section
Point B (NodeB, NB), evolved base station B (evolutional node B, eNB or eNodeB), the transmission node in NR system
Or transmitting-receiving point (transmissionreceptionpoint, TRP or TP) or next-generation node B
(generationnodeB, gNB), base station or the network equipment in future communications network), relay station, access point, mobile unit,
Wearable device, website, wireless backhaul node, small station, micro- station of Wireless Fidelity (wireless-fidelity, Wi-Fi) etc.
Deng.
Wherein, in LTE communication system, the length of radio frames (radio frame) is 10ms, and each subframe includes 10
Subframe (subframe), each subframe include 2 time slots (slot), the orthogonal frequency-time multiple access for including in each time slot again
(Orthogonal Frequency Division Multiple Access, OFDMA) symbol is according to different cyclic prefix classes
Type is distinguished, OFDMA symbol hereinafter referred to as symbol.In the case where cyclic prefix is conventional cyclic prefix, wrapped in each time slot
Containing 7 symbols；It include 6 symbols in each time slot in the case where cyclic prefix is extended cyclic prefix.Include in subframe
Information includes Physical Downlink Shared Channel (physical downlink shared channel, PDSCH), physical down control
Channel (physical downlink control channel, PDCCH), Physical Control Format Indicator Channel (physical
Control format indicator channel, PCFICF), physical mixed autonomous retransmission channel
(physicalhybridARQ indicator Channel, PHICH), reference signal (Reference Signal, RS) and same
It walks signal (synchronization signal, SS).PDSCH is the physical channel load of bearer service data and type of service
Body, the interior multiple users in attachment state of cell can share PDSCH.PDCCH includes the scheduling letter of the transfer resource of PDSCH
Breath, UE could receive the business datum in PDSCH after being correctly decoded PDCCH.According to third generation partner program (3rd
Generation partnership project, 3GPP) regulation in agreement, PDCCH can generally occupy front in the time domain
Several symbols, PDCCH occupy symbol quantity be to be controlled by PCFICH.Such as: in frequency division multiplexing-long term evolution
In (frequency division duplex-long term evolution, FDD-LTE) agreement, the symbol of PDCCH occupancy
Number ginseng is shown in Table 1:
Table 1
Wherein, CCE is the unit for transmitting the transfer resource of PDCCH, 4 continuous unappropriated resource particle (resource
Element, RE) a resource grains subgroup (resource element group, REG) is constituted, 9 REG constitute a channel
Controlling elements (channel control element, CCE), the network equipment is according to the channel quality of different down channels
PDCCH configures different polymerization grades, and polymerization grade (aggregation layer) is expressed as the number of the CCE of PDCCH scheduling
Amount.To in a subframe, LTE protocol supports 4 kinds of CCE polymerization grades: 1,2,4 and 8.According to the regulation of 3GPP agreement, very
1 CCE is dispatched to transmit PDCCH in good wireless channel conditions lower network side；In normal wireless channel conditions lower network side tune
2 CCE are spent to transmit PDCCH；In the case where wireless channel conditions difference, network side calls 4 CCE under healthy and strong configuration to pass
Defeated PDCCH；In the excessively poor situation system of wireless channel conditions, network side calls 8 CCE under most healthy and strong configuration to transmit
PDCCH.Network side improved by dispatching more transfer resources the robustness that PDCCH under conditions of bad channel quality is transmitted and
Reliability, i.e. down channel quality are poorer, and network side is that the quantity of the transfer resource of PDCCH scheduling is more.
Such as: the bandwidth with down channel is 10MHz, when 1 symbol that PDCCH is occupied in the time domain, the downlink of scheduling
Control area includes 600 (12*50RB) a resource particles altogether in transfer resource, wherein 200 reference signal resource particles+16
+ 84 physical mixing retransmission indicating chanels of a physics PCFICH resource particle=300 resource particles；PDCCH under 3 symbols is total
Available resources particle is 1800-300=1500 altogether, and PDCCH total polymerization grade is=1500/36 (CCE)=41
(aggregation layers), wherein 4 continuous unappropriated resource particles constitute a REG, 9 REG are constituted
One CCE.
According to analysis above it is found that at present in the scheme of the transfer resource of scheduling PDCCH, in the channel matter of down channel
Measure it is poorer, the quantity for being scheduled to the transfer resource of PDCCH can be more, correspondingly, in subframe the available transfer resource of PDSCH number
Amount will be fewer, will affect the throughput that the UE in cell in attachment state receives the business datum carried on PDSCH in this way,
When the UE quantity especially adhered in cell is excessive, the very fast of the throughput decline of business datum is received on each UE.
In order to solve technical problem mentioned above, the application the following technical schemes are provided:
It referring to fig. 2, is a kind of process signal of the sending method of Physical Downlink Control Channel provided in an embodiment of the present invention
Figure, in embodiments of the present invention, which comprises
S201, when the channel quality of down channel is abnormal, the network equipment is provided according to minimum polymerization grade scheduled transmission
Source.
Wherein, down channel is the channel that the network equipment sends data to terminal device, the quality parameter value of down channel
For assessing the channel quality superiority and inferiority of down channel.The method of state of the channel of network equipment monitoring down channel includes:
The uplink reference signals that network equipment measuring terminals equipment is sent, such as: uplink detection reference signal (Sounding
Reference Signal, SRS), the network equipment measures the signal quality of uplink reference signals, the signal matter of uplink reference signals
Amount may include: that Reference Signal Received Power (reference signal receiving power, RSRP), reference signal connect
Receive quality (reference signal receiving quality, RSRQ), received signal strength indicator (received
Signal strength indication, RSSI), Signal to Interference plus Noise Ratio (signal to interference plus noise
Ratio, SINR) one of or it is a variety of, the channel quality to judge up channel is compared according to measured value and threshold value
To be abnormal or normal, up channel and down channel have the characteristics that reciprocity, and the channel quality of up channel is considered as downlink
The channel quality of channel.
Such as: in the case that the RSRQ of up channel is less than threshold value, determine the channel quality of up channel for exception, phase
The channel quality for the down channel answered is exception, and the network equipment configures the bit of TPC command to when configuring TPC command
Complete 1, terminal device is resolved to the bit of TPC command when being complete 1, shows the channel quality of up channel to be abnormal, in increase
Row transmission power；In the case where the RSRQ of up channel is greater than or equal to threshold value, determine that the channel quality of up channel is
Normally, the network equipment configures full 0 for the bit of TPC command, terminal device receives TPC command when configuring TPC command
When determine up channel channel quality be it is normal, be not required to increase uplink transmission power, correspondingly, the channel quality of down channel
It is considered as normal.
The network equipment configures transmission mode according to the channel quality of up channel, such as: in Downlink Control Information
Transmission mode (transmission mode, TM) is configured in (downlink control information, DCI), it is different
TM corresponds to different channel qualities.Such as: LTE communication system supports 9 kinds of following TM:
1.TM1: single antenna port transmission is mainly used in the occasion of single antenna transmissions.
2.TM2: Open-Loop Transmit Diversity does not need feeding back precoding matrix instruction (precoding matrix
Indicator, PMI), it is suitable for that cell edge channel situation is more complicated, interferes larger situation, is sometimes also used for high speed
The case where, diversity is capable of providing diversity gain.
3.TM3: the case where Open-Loop Spatial Multiplexing does not need feedback PMI, is appropriate to the high-speed mobile of UE.
4.TM4: Closed-Loop Spatial Multiplexing needs to feed back PMI, is suitable for the preferable occasion of channel condition, high for providing
Data rate transmission.
5.TM5: multi-user's multiple-input and multiple-output (multi-user multiple-input multiple-output,
MU-MIMO) transmission mode (descending multi-user MIMO): it is mainly used to improve the capacity of cell.
6.TM6: Closed-Loop Transmit Diversity, the transmission of closed loop Rank1 precoding: needing to feed back PMI, is primarily suitable for cell side
The case where edge.
Single stream beam forming (beamforming) mode of 7.TM7:Port5: mainly and cell edge, can be effective
To anti-interference.
8.TM8: double-current beam forming mode can be used for cell edge also and can be applied to other scenes.
9.TM9: transmission mode 9 is in advanced long term evolution (long term evolution-advanced, LTE-A)
The one mode newly increased can be supported to be up to 8 layers of transmission, mainly for promoting message transmission rate.
Wherein, when transmission mode is Preset Transfer mode, the network equipment determines that the channel quality of down channel is abnormal.
Such as: when transmission mode is TM2, determine the transmission power for needing to be lifted PDCCH.
Terminal device measurement and reporting channel quality instruction (channel quality indication, CQI), in LTE
In communication system, terminal device according to measurement result (such as: SINR) assess down channel channel quality, determine down channel
The channel quality lower Block Error Rate (block errorrate, BLER) that can be obtained report and according to the limitation of BLER < 10%
Corresponding CQI is to the network equipment.Wherein, modulation system determines that order of modulation, modulation terminates indicate to be transmitted in each symbol
Bit number.The corresponding order of modulation of quadrature phase shift keying (quadrature phase shiftkeying, QPSK) is 2,16
The corresponding order of modulation of quadrature amplitude modulation (16quadrature amplitude modulation, 16QAM) is 4,64QAM
Corresponding order of modulation is 6.Code rate is the ratio in transmission block between information bit and physical channel total bit number, it may be assumed that
Information bit/physical channel total bit number=information bit/(total symbol of physical channel in code rate=transmission block
Number * order of modulation)=efficiency/order of modulation.
It can be seen that the different values of CQI determine the difference between Corticofugal Modulation of Somatosensory mode and transport block size.CQI
Bigger, used modulation coding scheme is higher, and efficiency is higher, and corresponding transmission block is also bigger, and the down peak magnitude provided gulps down
The amount of spitting is higher.CQI is bigger, and the quality for indicating down channel is better, otherwise the smaller quality for indicating down channel of CQI is poorer.
The network equipment by the CQI that terminal device reports and threshold value be compared the quality of determining down channel to be abnormal or
Normally, such as: the CQI=12 that network equipment receiving terminal apparatus reports, the CQI be greater than threshold value 8, determine the letter of down channel
Road quality is normal；Another example is: the CQI=7 that network receiving terminal apparatus reports, the CQI are less than threshold value 8, determine that downlink is believed
The channel quality in road is abnormal.
In the embodiment of the present application, when the network equipment monitors that the channel quality of down channel is abnormal, network equipment root
According to minimum polymerization grade scheduling transmission resources, a variety of polymerization grades that the network equipment is supported, minimum polymerization grade is the network equipment
The polymerization grade of transfer resource minimum number is indicated in the multiple polymerization grades supported.
Such as: the network equipment supports 1 CCE, 2 CCE, 4 CCE and 8 CCE totally 4 kinds of polymerization grades, minimum polymerization etc.
Grade is 1.
Wherein, the network equipment is according to minimum polymerization grade scheduling transmission resources, comprising:
The network equipment determines the downlink transfer resource dispatched on current subframe, and the network equipment is according to minimum polymerization grade in institute
State the transfer resource that scheduling in downlink transfer resource is used for transmission PDCCH.
Wherein, the network equipment can be based on dynamic dispatching method or Semi-static scheduling method scheduling downstream transmission resource, move
The period of state dispatching method is less than the period of Semi-static scheduling method, such as: the period 1ms of dynamic dispatching supports all business
Type；Semi-persistent scheduling: not having the period of definition standard in agreement, some producers are 20ms, and the type of service of support is generally
Real time business, such as VoIP.Downlink transfer resource is to be used for transmission the resource of downlink data, and downlink data includes taking in PDCCH
The business datum carried in the control information or PDSCH of band.The network equipment is according to minimum polymerization grade in downlink transfer resource
Scheduling is used for transmission the transfer resource of PDCCH in available resource, and network equipment scheduling is used for transmission the transfer resource of PDCCH
Method may is that preferential based on frequency domain or time domain is preferential.
S202, the network equipment send PDCCH on the transfer resource of scheduling with the first transmission power.
Specifically, the first transmission power indicates to be less than quality parameter thresholds, the second hair in the quality parameter value of down channel
Power is penetrated greater than the first transmission power.The quality parameter value of down channel and quality parameter thresholds are compared, according to comparing
The superiority and inferiority of result judgement channel quality, in the good situation of channel quality, the network equipment is sent using the first transmission power
PDCCH.In the case where down channel quality is exception, the network equipment sends PDCCH using the second transmission power.Network is set
The standby transfer resource for dispatching PDCCH in the resource block for distributing to downlink transfer according to minimum polymerization grade, the mode sheet of scheduling
Apply with no restriction, such as: minimum polymerization grade 1 determines available RE in the corresponding downlink transfer resource of current subframe,
1 CCE is dispatched in such a way that time domain is preferential, 1 CCE is made of 9 REG, and each REG is made of 4 continuously available RE；
Another example is: minimum polymerization grade is 2, available RE in the corresponding downlink transfer resource of current subframe is determined, in available RE
2 CCE are dispatched in such a way that frequency domain is preferential.Network equipment allocation schedule is to the subcarrier of the transfer resource of PDCCH, and adjustment is respectively
The transmission power of a subcarrier to send PDCCH with the first transmission power.
Wherein it is determined that the method for the first transmission power of PDCCH may include following methods:
A, PDCCH is used when being normal transmission power that the second transmission power is the quality of down channel, the second transmitting function
Rate is the default value that the network equipment is pre-stored or is pre-configured, and the first transmission power is greater than the second transmission power, the matter of down channel
It is poorer to measure, and the second transmission power is bigger.
Optionally, the quality of down channel is indicated with CQI, in the case where CQI is greater than or equal to threshold value, downlink letter
The quality in road is normal；Otherwise, the quality of down channel is abnormal.In the case where down channel quality is exception, downlink
The quality of channel is poorer, and the second transmission power is bigger, and CQI one unit of every reduction, the second transmission power is according to preset step-length value
It carries out incremental.
Such as: it indicates shown in 2, the second transmission power is equal to 1mW, and the threshold value of CQI is 8, and preset step-length value is 0.5mW.
| CQI | First transmission power |
| 7 | 1.5mW |
| 6 | 2.0mW |
| 5 | 2.5mW |
| 4 | 3.0mW |
| 3 | 3.5mW |
| 2 | 4.0mW |
| 1 | 4.5mW |
Table 2
B, the transmission power of PDSCH, current subframe pair in the transmission power and a upper subframe that PDCCH is used in current subframe
One of bandwidth, minimum polymerization grade and TPC command for answering are a variety of related.
Such as: more than the second transmission power of the PDCCH of current subframe in one subframe on the basis of the transmission power of PDSCH,
Increase predetermined power on the benchmark and obtains the size of the second transmission power.
Another example is: carrying out denary logarithm operation to the corresponding bandwidth of current subframe obtains a value, which is multiplied
The second transmission power of the PDCCH of current subframe is obtained with a constant greater than 1.
Another example is: the transmission power of PDSCH in a upper subframe is obtained PDCCH in current subframe multiplied by minimum polymerization grade
The second transmission power used.
Another example is: when TPC command instruction terminal equipment increases uplink transmission power, the transmitting of the PDSCH of a upper subframe
On the basis of power, increases predetermined power on the benchmark and obtain the size of the second transmission power.
Another example is: the second transmission power of PDCCH is indicated by following formula in current subframe:
Power (PDCCH, i)=Max { Power (PDSCH, i-1), 10lg (Bandwith, i)+Power_o_PDCCH
(i)}*Min{CCE(i)}+f(i)；
Wherein, Power (PDCCH, i) indicates the second transmission power of PDCCH in i-th of subframe, and Max expression takes maximum
Value, Power (PDSCH, i) indicate the transmission power of PDSCH in (i-1)-th subframe, and Bandwith indicates bandwidth, (Bandwith,
I) it indicates the corresponding bandwidth of current subframe, is indicated using RB quantity, Power_o_PDCCH (i) is indicated where current subframe
In radio frames in first subframe PDCCH transmission power, min expression be minimized, CCE (i) indicate i-th of subframe support hair
A variety of polymerization grades of PDCCH are sent, f (i) is constant related with TPC command.TPC command instruction terminal equipment increases uplink hair
When sending power, the network equipment just will do it power lifting, i.e., emits PDCCH with the second transmission power；TPC command instruction terminal is set
When the current uplink transmission power of standby holding is constant, the network equipment not will do it power lifting, i.e., still using the first transmitting function
Rate emits PDCCH.
In a kind of possible embodiment, when the channel quality of down channel is abnormal, the network equipment is poly- according to minimum
Before conjunction grade scheduling transmission resources, further includes:
When the throughput of business datum is less than throughput threshold value, the network equipment is sent to terminal device carries minimum polymerization
The system information of grade.
Wherein, throughput indicate the unit time in by communication channel (a communication channel) or some
The Mean Speed of node Successful transmissions data, usually with bits per second (bits per second, bps) for unit.Network is set
Standby the network equipment sends system information to terminal device before sending PDCCH to terminal device, and system information carries minimum poly-
Grade is closed, which indicates the quantity for the CCE that PDCCH to be sent is used.Terminal device can be according to business number
According to decoding cases to the network equipment send feedback information, such as: terminal device is in the business datum being successfully decoded in PDSCH
When, terminal device can return to an ACK to the network equipment；When business datum in failed decoding PDSCH, terminal device can be to
The network equipment returns to a NACK.The network equipment can count the business datum just passed in list according to the feedback information of terminal device
Throughput in the time of position.The network equipment is pre-stored or is pre-configured with throughput threshold value, is less than in the throughput that measurement obtains and gulps down
In the case where spitting rate threshold value, the network equipment sends the system information for carrying minimum polymerization grade to terminal device, with instruction terminal
Equipment all receives PDCCH and decoding using the corresponding CCE of minimum polymerization grade no matter in the case where which kind of channel quality
PDCCH demodulates PDSCH according to the decoding result of PDCCH.
In a kind of possible embodiment, network equipment instruction terminal equipment increases the threshold value of BLER, if BLER
Thresholding slightly increase, then for the BLER before threshold value increase, the network equipment will use smaller polymerization etc.
Grade scheduling is used for transmission the transfer resource of PDCCH, to reduce the signaling overheads of PDCCH, increases the available transmission money of PDSCH
Source
S203, terminal device detect PDCCH.
Wherein, different PDCCH may be mapped in the CCE of different polymerization grades, when identifying PDCCH, be removed
Using outside polymerization grade this parameter, it is also necessary to which the initial position of CCE indexes this parameter, downlink resource or ascending resource
Dynamic dispatching is carried out in the network equipment, and the initial position index of polymerization grade and CCE are all distributed by the network equipment.
In a kind of possible embodiment, the mode of blind examination is can be used to detect PDCCH in terminal device:
In downlink subframe, terminal device can not determine the polymerization grade of PDCCH and the initial position index of CCE in advance,
It is the position that PDCCH is obtained by blind examination every time for terminal device.The polymerization grade of PDCCH is according to LTE protocol
In description, 1,2,4 and 8 may be divided into.
For different search spaces (search space), allow using polymerization grade it is different, position candidate
(Number ofPDCCH candidates) is also limited, and is specifically shown in the regulation of the following table 3.
Table 3
Wherein, for UE private space (UE-specific search space), terminal device can be used 1,2,4,8
This 4 kinds of polymerization grades, and at public space (common search spaces), when comprehensively considering the processing of anti-interference and blind Detecting
Between, only use 4 and 8 this 2 kinds of polymerization grades.Polymerization grade maximum is 8, and the CCE total number that PDCCH is occupied is possible to compare
It is more, such as: the total quantity for the CCE that PDCCH is occupied is 88, and in the control area of 88 CCE, there are a variety of possible by PDCCH
Position, the possible position are known as position candidate collection (set ofPDCCH candidates).In order to reduce the blind of terminal device
The quantity of the time of inspection, location candidate set are also limited, and shown in table 3 as above, in public search space, polymerization grade is
8 PDCCH, the quantity of location candidate set only have 2.
In alternatively possible embodiment, carried most in the system information that terminal device is sent according to the network equipment
Small polymerization grade knows the quantity for the CCE that PDCCH is used, and terminal avoids blind examination PDCCH in the case where knowing the quantity of CCE
The excessive problem of bring number reduces the time of decoding PDCCH.
Implement embodiments herein, in the case where down channel quality is abnormal, is lifted according to preset power
It carries out power to be lifted to obtain the second transmission power, according to minimum polymerization grade scheduling transmission resources, on the transfer resource of scheduling
PDCCH is sent using the second transmission power.In this way in the case where down channel quality is abnormal, still using minimum polymerization
Grade scheduling transmission resources avoid being transferred to bigger polymerization grade and carry out scheduling transmission resources, reduce the biography that transmission PDCCH is used
The throughput of transmission services data can be improved to increase the resource that transmission PDSCH is used in defeated resource；In addition, using lift
Transmission power after rising sends PDCCH on the transfer resource of scheduling, improves down channel quality and deteriorates bring transmission PDCCH
Anti-interference ability, can increase PDCCH transmission reliability.
Above-mentioned to illustrate the method for the embodiment of the present invention, the structure that the device of the embodiment of the present invention is provided below is shown
It is intended to, hereinafter referred to as device 3, device 3 includes processing unit 301 and Transmit-Receive Unit 302, and the device 3 is for executing the above method
The behavioral function of the network equipment in embodiment.
When processing unit 301 for the channel quality in down channel is abnormal, the network equipment is according to minimum polymerization grade
Scheduling transmission resources；Wherein, the minimum polymerization grade is in a variety of polymerization grades of physical downlink control channel PDCCH support
Indicate the least polymerization grade of transfer resource；Such as: processing unit 301 is used to execute the S201 in Fig. 2, specifically can refer to S201
Description, step repeats herein.
Transmit-Receive Unit 302, for sending PDCCH on the transfer resource of scheduling with the first transmission power；Wherein, the second hair
The transmission power that PDCCH is used when channel quality that power is the down channel is normal is penetrated, first transmission power is big
In second transmission power.Such as: Transmit-Receive Unit 302 is used to execute the S202 in Fig. 2, specifically can refer to the description of S202,
Details are not described herein again.
In a kind of possible embodiment, Transmit-Receive Unit 320 is also used to: being less than throughput in the throughput of business datum
In the case where threshold value, the system information for carrying the minimum polymerization grade is sent to terminal device.
In a kind of possible embodiment, the PDCCH carries transmission mode, is Preset Transfer in the transmission mode
When mode, the channel quality of the down channel is abnormal；
The PDCCH carries transmitting power control TPC command, indicates that increasing uplink emits function in the transimission power order
When rate, the channel quality of the down channel is abnormal；Or
In the case that the channel quality indicator (CQI) reported on the terminal device is less than threshold value, the channel of the down channel
Quality is abnormal.
In a kind of possible embodiment, processing unit 301 is also used to:
When the channel quality of the down channel is normal, according to minimum polymerization grade scheduling transmission resources；
Transmit-Receive Unit 302 is also used on the transfer resource of scheduling send the PDCCH with second transmission power.
In a kind of possible embodiment, processing unit 301 is used for according to minimum polymerization grade scheduling transmission resources, packet
It includes:
Determine the downlink transfer resource dispatched on current subframe；
The transfer resource for being used for transmission PDCCH is dispatched in the downlink transfer resource according to minimum polymerization grade.
In a kind of possible embodiment, the second transmission power of PDCCH and physics in a upper subframe in current subframe
The corresponding bandwidth of the transmission power of DSCH Downlink Shared Channel PDSCH, current subframe, minimum polymerization grade are related with TPC command.
In a kind of possible embodiment, the second transmission power of PDCCH is by following formula come table in current subframe
Show:
Power (PDCCH, i)=Max { Power (PDSCH, i-1), 10lg (Bandwith, i)+Power_o_PDCCH
(i)}*Min{CCE(i)}+f(i)；
Wherein, Power (PDCCH, i) indicates the second transmission power of PDCCH in i-th of subframe, and Max expression takes maximum
Value, Power (PDSCH, i) indicate the transmission power of PDSCH in (i-1)-th subframe, and Bandwith indicates bandwidth, uses RB quantity
To indicate；Power_o_PDCCH (i) indicates the transmission power of PDCCH in first subframe in the radio frames where current subframe,
Min expression is minimized, CCE (i) indicate that i-th subframe support for sending a variety of polymerization grades of PDCCH, f (i) be with
The related constant of TPC command.
Above-mentioned apparatus embodiment only lists the logic function between module, and specific implementation procedure please join with beneficial effect
According to its corresponding embodiment of the method.
Described device 3 or the field programmable gate array (field-programmable for realizing correlation function
Gate array, FPGA), special integrated chip, System on Chip/SoC (system on chip, SoC), central processing unit (central
Processorunit, CPU), network processing unit (networkprocessor, NP), digital signal processing circuit, microcontroller
(micro controllerunit, MCU), can also using programmable controller (programmable logic device,
) or other integrated chips PLD.
The embodiment of the present invention and the embodiment of the method for Fig. 2 are based on same design, and bring technical effect is also identical, specifically
Process can refer to the description of the embodiment of the method for Fig. 2, and details are not described herein again.
Fig. 4 is a kind of apparatus structure schematic diagram provided in an embodiment of the present invention, and hereinafter referred to as device 4, device 4 can integrate
In the network equipment above-mentioned, as shown in figure 4, the device includes: memory 402, processor 401 and transceiver 403.
Memory 402 can be independent physical unit, can be connect by bus with processor 401 and transceiver 403.
Memory 402, processor 401, transceiver 403 also can integrate together, pass through hardware realization etc..
Memory 402 is used to store the program for realizing above method embodiment or Installation practice modules, processing
Device 401 calls the program, executes the operation of above method embodiment.
Optionally, when passing through software realization some or all of in the processing method of the reference signal of above-described embodiment,
Device can also only include processor.Memory for storing program is located at except device, processor by circuit/electric wire with
Memory connection, for reading and executing the program stored in memory.
Processor can be central processing unit (central processing unit, CPU), network processing unit
The combination of (networkprocessor, NP) or CPU and NP.
Processor can further include hardware chip.Above-mentioned hardware chip can be specific integrated circuit
(application-specific integrated circuit, ASIC), programmable logic device (programmable
Logic device, PLD) or combinations thereof.Above-mentioned PLD can be Complex Programmable Logic Devices (complex
Programmable logic device, CPLD), field programmable gate array (field-programmable gate
Array, FPGA), Universal Array Logic (generic array logic, GAL) or any combination thereof.
Memory may include volatile memory (volatile memory), such as random access memory
(random-access memory, RAM)；Memory also may include nonvolatile memory (non-volatile
), such as flash memory (flash memory), hard disk (hard disk drive, HDD) or solid state hard disk memory
(solid-state drive, SSD)；Memory can also include the combination of the memory of mentioned kind.
In above-described embodiment, sending module or transmitter execute the step of above-mentioned each embodiment of the method is sent, and receive mould
Block or receiver execute the step of above-mentioned each embodiment of the method receives, and other steps are executed by other modules or processor.Hair
Send module and receiving module that can form transceiver module, receiver and transmitter can form transceiver.
The embodiment of the present application also provides a kind of computer storage mediums, are stored with computer program, the computer program
For executing the sending method of Physical Downlink Control Channel provided by the above embodiment.
The embodiment of the present application also provides a kind of computer program products comprising instruction, when it runs on computers
When, so that computer executes the sending method of Physical Downlink Control Channel provided by the above embodiment.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Claims (10)
1. a kind of sending method of Physical Downlink Control Channel characterized by comprising
When the channel quality of down channel is abnormal, the network equipment is according to minimum polymerization grade scheduling transmission resources；Wherein, institute
Stating indicates that transfer resource is least poly- in a variety of polymerization grades that minimum polymerization grade is physical downlink control channel PDCCH support
Close grade；
The network equipment sends PDCCH on the transfer resource of scheduling with the first transmission power；Wherein, the second transmission power is
The transmission power that PDCCH is used when the channel quality of the down channel is normal, first transmission power are greater than described the
Two transmission powers.
2. the method according to claim 1, wherein when the channel quality in down channel is abnormal, net
Before network equipment is according to minimum polymerization grade scheduling transmission resources, further includes:
In the case where the throughput of business datum is less than throughput threshold value, the network equipment sends to terminal device and carries institute
State the system information of minimum polymerization grade.
3. method according to claim 1 or 2, which is characterized in that
The PDCCH carries transmission mode, when the transmission mode is Preset Transfer mode, the channel matter of the down channel
Amount is abnormal；
The PDCCH carries transmitting power control TPC command, indicates to increase uplink transmission power in the transimission power order
When, the channel quality of the down channel is abnormal；Or
In the case that the channel quality indicator (CQI) reported on the terminal device is less than threshold value, the channel quality of the down channel
For exception.
4. according to the method described in claim 3, it is characterized by further comprising:
When the channel quality of the down channel is normal, the network equipment is provided according to minimum polymerization grade scheduled transmission
Source；
The network equipment sends the PDCCH on the transfer resource of scheduling with second transmission power.
5. according to the method described in claim 4, it is characterized in that, the network equipment is according to minimum polymerization grade scheduled transmission
Resource, comprising:
The downlink transfer resource dispatched on the network equipment current subframe；
The network equipment dispatches the transmission money for being used for transmission PDCCH according to minimum polymerization grade in the downlink transfer resource
Source.
6. according to the method described in claim 4, it is characterized in that, the second transmission power of PDCCH and upper one in current subframe
The corresponding bandwidth of the transmission power of Physical Downlink Shared Channel PDSCH, current subframe, minimum polymerization grade and TPC life in subframe
It enables related.
7. according to the method described in claim 6, it is characterized in that, the second transmission power of PDCCH is by such as in current subframe
Lower formula indicates:
Power (PDCCH, i)=Max { Power (PDSCH, i-1), 10lg (Bandwith, i)+Power_o_PDCCH (i) } *
Min{CCE(i)}+f(i)；
Wherein, Power (PDCCH, i) indicates the second transmission power of PDCCH in i-th of subframe, and Max expression is maximized,
Power (PDSCH, i) indicates the transmission power of PDSCH in (i-1)-th subframe, and Bandwith indicates bandwidth, is come using RB quantity
It indicates；Power_o_PDCCH (i) indicates the transmission power of PDCCH in first subframe in the radio frames where current subframe, min
Expression is minimized, CCE (i) indicate that i-th subframe support for sending a variety of polymerization grades of PDCCH, f (i) is and TPC
Order related constant.
8. a kind of sending device of Physical Downlink Control Channel characterized by comprising
Processing unit, when the channel quality of down channel is abnormal, according to minimum polymerization grade scheduling transmission resources；Wherein,
The minimum polymerization grade is the least polymerization grade of transfer resource in a variety of polymerization grades of PDCCH support；
Transmit-Receive Unit sends PDCCH on the transfer resource of scheduling for the network equipment with first transmission power；Its
In, the transmission power of the second transmission power is the channel quality of the down channel when being normal PDCCH, the first transmitting function
Rate is greater than second transmission power.
9. a kind of sending device of Physical Downlink Control Channel characterized by comprising at least one processor；And
The memory being connect at least one described processor communication；Wherein,
The memory is stored with the instruction that can be executed by least one described processor, and described instruction is by described at least one
It manages device to execute, so that at least one described processor is able to carry out the control of the physical down as described in any in claim 1 to 7
The sending method of channel.
10. a kind of computer storage medium, including instruction, when run on a computer, so that computer executes such as right
It is required that the sending method of Physical Downlink Control Channel described in 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500397.3A CN110138536B (en) | 2019-06-11 | 2019-06-11 | Method and device for sending physical downlink control channel and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500397.3A CN110138536B (en) | 2019-06-11 | 2019-06-11 | Method and device for sending physical downlink control channel and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110138536A true CN110138536A (en) | 2019-08-16 |
| CN110138536B CN110138536B (en) | 2022-02-08 |
Family
ID=67580980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910500397.3A Active CN110138536B (en) | 2019-06-11 | 2019-06-11 | Method and device for sending physical downlink control channel and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110138536B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453264A (en) * | 2020-03-24 | 2021-09-28 | 维沃移动通信有限公司 | Method for detecting terminal emission behavior and network equipment |
| CN114126022A (en) * | 2020-08-31 | 2022-03-01 | 成都鼎桥通信技术有限公司 | Method, device, equipment and storage medium for adjusting transmission power |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312367A (en) * | 2007-05-23 | 2008-11-26 | 鼎桥通信技术有限公司 | Method and apparatus for controlling transmission power during downlink interrupted transmission |
| CN102378255A (en) * | 2010-08-24 | 2012-03-14 | 中兴通讯股份有限公司 | Method and device for improving transmission performance of physical downlink control channel (PDCCH) |
| CN103582031A (en) * | 2012-07-20 | 2014-02-12 | 中国移动通信集团公司 | Allocation method and device for physical downlink control channel resources |
| CN103843419A (en) * | 2012-09-28 | 2014-06-04 | 华为技术有限公司 | Method and system for power adjustment, base station, and user equipment |
| US20140269519A1 (en) * | 2013-03-12 | 2014-09-18 | Samsung Electronics Co. Ltd. | Method and apparatus for transmitting/receiving control channel in wireless communication system |
| CN104113925A (en) * | 2013-04-18 | 2014-10-22 | 中兴通讯股份有限公司 | Authorization signalling sending and acquiring method and device |
| CN104144503A (en) * | 2013-05-10 | 2014-11-12 | 中国电信股份有限公司 | Method and system for dynamically raising upper limit of PDCCH capacity and mobile terminal |
| CN104717748A (en) * | 2013-12-11 | 2015-06-17 | 北京三星通信技术研究有限公司 | Physical downlink control channel (PDCCH) resource allocation method and device |
| US20150215957A1 (en) * | 2014-01-23 | 2015-07-30 | Humax Holdings Co., Ltd. | System and method for channel state information transmission on lte dual connectivity |
-
2019
- 2019-06-11 CN CN201910500397.3A patent/CN110138536B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312367A (en) * | 2007-05-23 | 2008-11-26 | 鼎桥通信技术有限公司 | Method and apparatus for controlling transmission power during downlink interrupted transmission |
| CN102378255A (en) * | 2010-08-24 | 2012-03-14 | 中兴通讯股份有限公司 | Method and device for improving transmission performance of physical downlink control channel (PDCCH) |
| CN103582031A (en) * | 2012-07-20 | 2014-02-12 | 中国移动通信集团公司 | Allocation method and device for physical downlink control channel resources |
| CN103843419A (en) * | 2012-09-28 | 2014-06-04 | 华为技术有限公司 | Method and system for power adjustment, base station, and user equipment |
| US20140269519A1 (en) * | 2013-03-12 | 2014-09-18 | Samsung Electronics Co. Ltd. | Method and apparatus for transmitting/receiving control channel in wireless communication system |
| CN104113925A (en) * | 2013-04-18 | 2014-10-22 | 中兴通讯股份有限公司 | Authorization signalling sending and acquiring method and device |
| CN104144503A (en) * | 2013-05-10 | 2014-11-12 | 中国电信股份有限公司 | Method and system for dynamically raising upper limit of PDCCH capacity and mobile terminal |
| CN104717748A (en) * | 2013-12-11 | 2015-06-17 | 北京三星通信技术研究有限公司 | Physical downlink control channel (PDCCH) resource allocation method and device |
| US20150215957A1 (en) * | 2014-01-23 | 2015-07-30 | Humax Holdings Co., Ltd. | System and method for channel state information transmission on lte dual connectivity |
Non-Patent Citations (3)
| Title |
|---|
| CHRISTER QVARFORDT: "《Evaluation of LTE HetNet deployments with realistic traffic models》", 《2012 IEEE 17TH INTERNATIONAL WORKSHOP ON COMPUTER AIDED MODELING AND DESIGN OF COMMUNICATION LINKS AND NETWORKS (CAMAD)》 * |
| MEDIATEK INC.: "《 R1-1812374 Evaluations and enhancements of NR PDCCH for URLLC》", 《3GPP TSG RAN WG1 MEETING #95》 * |
| 周伯慧: "《TD-LTE覆盖能力分析及提升解决方案》", 《电信工程技术与标准化》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453264A (en) * | 2020-03-24 | 2021-09-28 | 维沃移动通信有限公司 | Method for detecting terminal emission behavior and network equipment |
| CN113453264B (en) * | 2020-03-24 | 2022-11-18 | 维沃移动通信有限公司 | Method for detecting terminal emission behavior and network equipment |
| CN114126022A (en) * | 2020-08-31 | 2022-03-01 | 成都鼎桥通信技术有限公司 | Method, device, equipment and storage medium for adjusting transmission power |
| CN114126022B (en) * | 2020-08-31 | 2023-08-29 | 成都鼎桥通信技术有限公司 | Method, device, equipment and storage medium for adjusting transmitting power |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110138536B (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11115103B2 (en) | Method and apparatus for beam measurement and management in wireless systems | |
| US11424873B2 (en) | Uplink control information transmission method and apparatus for use in cellular mobile communication system | |
| US10476654B2 (en) | Methods and apparatus for operating wireless devices | |
| US10374677B2 (en) | Method for channel-related feedback and apparatus for same | |
| US9838193B2 (en) | Channel state information feedback for full duplex cellular communications | |
| CN107105400B (en) | Periodic channel state information reporting for coordinated multipoint (CoMP) systems | |
| EP3769432A1 (en) | Uplink power control for advanced wireless communication systems | |
| KR20220052988A (en) | Method and apparatus for multi-beam operations | |
| US20170048740A1 (en) | Method and apparatus for reporting channel state information | |
| US20130100906A1 (en) | Radio communication method and radio communication apparatus | |
| US8824396B2 (en) | Overhead reduction for multi-carrier transmission systems | |
| CN112425087A (en) | Transmission of CSI reports for EIRP-constrained transmission to a base station | |
| CN103814616A (en) | Method and apparatus for scheduling user equipment | |
| US9450662B2 (en) | Evolved node-B, user equipment, and methods for channel quality indicator (CQI) feedback | |
| US20230239869A1 (en) | Method for transmitting and receiving uplink control information, terminal and base station | |
| EP3949554A1 (en) | User equipment oriented link adaptation | |
| US9450735B2 (en) | System and method for communicating over multiple communications links | |
| EP4029344A1 (en) | Methods and apparatus for resource selection | |
| CN110138536A (en) | Sending method, device and the storage medium of Physical Downlink Control Channel | |
| Imran et al. | A novel energy saving MIMO mechanism in LTE systems | |
| KR20210060637A (en) | Uplink Power Scaling for Advanced Wireless Communication Systems | |
| US20230224135A1 (en) | Improved tbs indication and cqi reporting for lower bler targets | |
| WO2019127488A1 (en) | Communication method, apparatus and system | |
| WO2022005565A1 (en) | Configurations for a carrier overlapping multiple unlicensed bands |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |