CN106304340A - Subscriber equipment, base station and correlation technique - Google Patents
Subscriber equipment, base station and correlation technique Download PDFInfo
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- CN106304340A CN106304340A CN201510242503.4A CN201510242503A CN106304340A CN 106304340 A CN106304340 A CN 106304340A CN 201510242503 A CN201510242503 A CN 201510242503A CN 106304340 A CN106304340 A CN 106304340A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Abstract
The invention provides a kind of method in user equipment (UE), comprise determining that the first subframe received in unlicensed spectrum is to shorten subframe, in described shortening subframe, at least part of symbol cannot be used for strengthening Physical Downlink Control Channel EPDCCH；Calculate each number strengthening enhancing resource unit group EREG comprised in control Channel Elements ECCE in the first subframe；Number based on the EREG calculated detects EPDCCH.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly, to a kind of subscriber equipment, base
Stand and correlation technique.
Background technology
Modern mobile radio system presents two distinguishing features, and one is broadband high-speed rate, than
Bandwidth such as forth generation mobile radio system is up to 1Gbps up to 100MHz, downstream rate；
Two is mobile interchange, has promoted the emerging services such as mobile Internet access, mobile video program request, online navigation.
The two feature proposes high requirement to wireless mobile telecommunication technology, mainly has: superelevation speed without
In line transmission, interregional AF panel, movement at transmitting signal, distributed/centralized signal
Reason etc..At following enhancing forth generation (4G) and the 5th generation (5G) mobile radio system
In, in order to meet above-mentioned growth requirement, various corresponding key technologies start to be suggested and prove,
It is worth researcher in this field's extensive concern.
In October, 2007, International Telecommunication Union (ITU) approval worldwide interoperability for microwave accesses system
System (WiMax, Worldwide Interoperability for Microwave Access) becomes the 4th
Individual 3G system standard.This generation is in the event in 3G latter stage in epoch, and actually 4G standard is striven
Take the preview of war by force.It is true that it is wireless in order to tackle with WLAN and WiMax as representative
The challenge of IP technical flow, from the beginning of 2005, third generation 3GPP tissue is just set about carrying out brand-new
System upgrade, the i.e. standardization effort of long evolving system (LTE, Long Term Evolution).
This be one based on orthogonal frequency division multiplexi (OFDM, Orthogonal Frequency Division
Multiplexing) standard four generation system, has released the first edition at the beginning of 2009, and in 2010 years
Commercialization is started successively in the whole world.Meanwhile, 3GPP organizes about forth generation wireless mobile communications
The standardization formulation work of system (4G) the most starts the first half of the year in 2008, and this system claims
For advanced long evolving system (LTE-A, Long Term Evolution Advanced).This is
The key standardisation document of the physical layer procedure of system completes at the beginning of 2011.In November, 2011
ITU is organized in Chongqing in China and announces, lte-a system and WiMax system are 4G systems
Two official standards.At present, the commercial process of lte-a system is the most progressively launched.
According to the challenge of following 10 years, for the forth generation mobile radio system strengthened, substantially
There is some growth requirement following:
-higher WiMAX speed, and the hot spot region, community of emphasis optimization local；
-improve Consumer's Experience further, it is accordingly required in particular to optimize the communication service of cell border areas；
-extension of 1000 times can not be had in view of usable spectrum, therefore need to continue research and can carry
The new technique of high spectrum utilization ratio；
The frequency spectrum (5GHz, the highest) of-high band will come into operation, bigger to obtain
Communication bandwidth；
The collaborative work of-existing network (2G/3G/4G, WLAN, WiMax etc.), to share
Data traffic；
-for different business, application and service certain optimisation；
-strengthening system supports the ability of large-scale machines communication；
-flexible, the intelligent and cheap network planning with arrange net；
-design is to save power consumption and the battery consumption of subscriber equipment of network.
In traditional 3GPP LTE system, data transmission can only authorize (licensed on frequency spectrum
Bands/carriers), however as the sharp increase of portfolio, especially at the hot zone in some cities
Territory, authorizes frequency spectrum may be difficult to meet the demand of the portfolio of growth.3GPP RAN#62 time is complete
A new research topic, i.e. unlicensed spectrum (unlicensed bands/carriers) can be discussed
Research (RP-132085), main purpose is the dependent of research and utilization LTE in unlicensed spectrum
Disposing (non-standalone deployment), so-called dependent refers to leading in unlicensed spectrum
Letter is wanted and authorizes the Serving cell on frequency spectrum to be associated.One direct method is to try to continue to use LTE
The mode of the carrier aggregation (carrier aggregation, CA) in system, will authorize frequency spectrum to be deployed as
The main carrier (primary component carrier, PCC) of serving BS, disposes unlicensed spectrum
Auxiliary carrier wave (secondary component carrier, SCC) for serving BS.
But, traditional LTE system is applied in unlicensed spectrum, it is understood that there may be problems with.
Authorize may being taken by WiFi signal of frequency spectrum, and the working method of WiFi is the shape of a kind of burst
Formula busy channel, taking when not being the most long, but frequently the taking of short time.Therefore, LTE
Base station will detect whether to there is non-LTE (such as WiFi) transmission, this mistake in unlicensed spectrum
Journey is referred to as efficient channel assessment (CCA), the part OFDM symbol that CCA will take in some subframes
Number.Such as, in the first subframe and odd amount in addition to the round number frame of a downlink transmission process (i.e. burst), because
The existence of CCA, can take the part OFDM symbol of the starting position of first subframe, and odd amount in addition to the round number
The part OFDM symbol of tail position.Therefore in such as first subframe and the such subframe of odd amount in addition to the round number frame
When carrying out strengthening Physical Downlink Control Channel (EPDCCH) transmission, the distribution of its resource and resource are reflected
Penetrate mode, distribute from traditional EPDCCH resource in normal sub-frames and resource maps different.
Accordingly, it would be desirable to new Resource Allocation Formula, in order to send in unlicensed spectrum and receive
EPDCCH。
Summary of the invention
It is an object of the invention to provide a kind of subscriber equipment, base station and correlation technique, it is simple to award non-
Send on power frequency spectrum and receive EPDCCH.
According to the first aspect of the invention, it is provided that a kind of method in user equipment (UE), including:
Determine that the first subframe received in unlicensed spectrum is to shorten subframe, in described shortening subframe at least
Partial symbols cannot be used for strengthening Physical Downlink Control Channel EPDCCH；Calculate in the first subframe every
The individual number strengthening enhancing resource unit group EREG comprised in control Channel Elements ECCE；Base
In the number of the EREG calculated to detect EPDCCH.
In an embodiment, described at least part of symbol is used for efficient channel assessment CCA.
In an embodiment, described detection includes: obtain in the first subframe configuration for EPDCCH
Physical Resource Block to the number of Physical Resource Block pair of instruction in group and frequency domain position；According to physics
Number and the frequency domain position of Resource Block pair detect EPDCCH.
In an embodiment, described method also includes: receive EPDCCH group configuration information, described
EPDCCH group configuration information includes that Physical Resource Block is to group.
In an embodiment, described shortening subframe is only to comprise descending pilot frequency time slot DwPTS or descending
The special subframe of physical channel.
In an embodiment, each Physical Resource Block is to comprising 16 EREG.
According to the second aspect of the invention, it is provided that a kind of user equipment (UE), list is comprised determining that
Unit, determines that the first subframe received in unlicensed spectrum is to shorten subframe, in described shortening subframe
At least partly symbol cannot be used for strengthening Physical Downlink Control Channel EPDCCH；Computing unit, meter
Calculate each enhancing in the first subframe and control the enhancing resource unit group comprised in Channel Elements ECCE
The number of EREG；Detector unit, number based on the EREG calculated detects EPDCCH.
In an embodiment, described at least part of symbol is used for efficient channel assessment CCA.
In an embodiment, described detector unit is configured to: obtain in the first subframe being used for of configuration
The number of the Physical Resource Block of the EPDCCH Physical Resource Block pair to indicating in group and frequency domain position；
Number and frequency domain position according to Physical Resource Block pair detect EPDCCH.
In an embodiment, described UE also includes: receive unit, receives EPDCCH and assembles confidence
Breath, described EPDCCH group configuration information includes that Physical Resource Block is to group.
In an embodiment, described shortening subframe is only to comprise descending pilot frequency time slot DwPTS or descending
The special subframe of physical channel.
In an embodiment, each Physical Resource Block is to comprising 16 EREG.
According to the third aspect of the invention we, it is provided that a kind of method in base station, comprising determining that will
The first subframe sent in unlicensed spectrum is to shorten subframe, in described shortening subframe at least partly
Symbol cannot be used for strengthening Physical Downlink Control Channel EPDCCH；Calculate each increasing in the first subframe
The number of strong enhancing resource unit group EREG controlling to comprise in Channel Elements ECCE；Based on institute
The number of the EREG calculated sends EPDCCH.
In an embodiment, described at least part of symbol is used for efficient channel assessment CCA.
In an embodiment, described transmission includes: according in the first subframe configuration for EPDCCH
Physical Resource Block the number of Physical Resource Block pair and the frequency domain position of instruction in group are sent
EPDCCH。
In an embodiment, described method also includes: send EPDCCH group configuration information, described
EPDCCH group configuration information includes that Physical Resource Block is to group.
In an embodiment, described shortening subframe is only to comprise descending pilot frequency time slot DwPTS or descending
The special subframe of physical channel.
In an embodiment, each Physical Resource Block is to comprising 16 EREG.
According to the fourth aspect of the invention, it is provided that a kind of base station, comprise determining that unit, determine
The first subframe to send in unlicensed spectrum is to shorten subframe, at least portion in described shortening subframe
Symbol is divided to cannot be used for strengthening Physical Downlink Control Channel EPDCCH；Computing unit, calculates first
Enhancing resource unit group EREG comprised in each enhancing control Channel Elements ECCE in subframe
Number；Transmitting element, number based on the EREG calculated sends EPDCCH.
In an embodiment, described at least part of symbol is used for efficient channel assessment CCA.
In an embodiment, described transmitting element is configured to: according to being used for of configuring in the first subframe
The number of the Physical Resource Block of the EPDCCH Physical Resource Block pair to indicating in group and frequency domain position
Send EPDCCH.
In an embodiment, described transmitting element is also configured to send EPDCCH group configuration information,
Described EPDCCH group configuration information includes that Physical Resource Block is to group.
In an embodiment, described shortening subframe is only to comprise descending pilot frequency time slot DwPTS or descending
The special subframe of physical channel.
In an embodiment, each Physical Resource Block is to comprising 16 EREG.
According to embodiments of the invention, (such as accounted for by CCA at unlicensed spectrum upper part symbol
With) cannot be used in the subframe (i.e. shortening subframe) of EPDCCH, it is possible to correct transmission and connecing
Receive EPDCCH.
Accompanying drawing explanation
By the preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, by make the present invention on address
Other objects, features and advantages are clearer, wherein:
Fig. 1 is the block diagram of UE according to embodiments of the present invention；
Fig. 2 is the flow chart of the method in UE according to embodiments of the present invention；
Fig. 3 is the block diagram of base station according to embodiments of the present invention；
Fig. 4 is the flow chart of the method in base station according to embodiments of the present invention.
Detailed description of the invention
Below with reference to the drawings and specific embodiments, embodiments of the invention are described in detail.
It should be noted that, the present invention should not be limited to specific embodiments described below.It addition, for simplicity
For the sake of, eliminate the detailed description to the known technology not having direct correlation with the present invention, to prevent
The understanding of the present invention causes to be obscured.
Hereafter using LTE mobile communication system and follow-up evolution version thereof as example applied environment,
Specifically describe the multiple embodiments according to the present invention.It should be noted, however, that the present invention is not
It is limited to following example, and can be applied to other wireless communication system more, the most from now on
5G cellular communication system.
Fig. 1 shows the block diagram of UE 100 according to embodiments of the present invention.As it can be seen, UE 100
Comprise determining that unit 110, computing unit 120 and detector unit 130.Those skilled in the art should
Understanding, UE 100 also includes realizing its function other functional units necessary, as various processors,
Memorizer etc..
Determine that unit 110 determines that the first subframe received in unlicensed spectrum is to shorten subframe.Contracting
In short subframe, at least part of symbol cannot be used for strengthening Physical Downlink Control Channel EPDCCH.Example
As, shortening subframe is the first subframe in downlink burst or odd amount in addition to the round number frame.
In one example, described at least part of symbol is used for efficient channel assessment CCA.
In one example, described shortening subframe be only comprise descending pilot frequency time slot DwPTS or under
The special subframe of row physical channel, does not the most comprise uplink pilot time slot UpPTS (by such as CCA
Take).
Computing unit 120 calculates each enhancing in the first subframe and controls to comprise in Channel Elements ECCE
The number of enhancing resource unit group EREG.
Specifically, with reference to following two example, the calculating that computing unit 120 performs is described.
Example A
When the first subframe is normal CP configuration:
If it is first subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Primary sign sequence number K (K is from 1 meter to 14) of the descending transmission after the OFDM symbol that CCA takies
Meet K ＜=4, then, in this subframe, each ECCE comprises 4 EREG.
If it is first subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Primary sign sequence number K of the descending transmission after the OFDM symbol that CCA takies meets 4 ＜ K ＜=7,
Then in this subframe, each ECCE comprises 8 EREG.
If it is first subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Primary sign sequence number K of the descending transmission after the OFDM symbol that CCA takies meets 7 ＜ K ＜=11,
Then in this subframe, each ECCE comprises 12 EREG.
If it is first subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Primary sign sequence number K of the descending transmission after the OFDM symbol that CCA takies meets K ＞ 11, then
In this subframe, each ECCE comprises 16 EREG.
If it is last subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Terminating symbol sequence number K of the descending transmission after the OFDM symbol that CCA takies meets K ＞=11,
Then in this subframe, each ECCE comprises 4 EREG.
If it is last subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Terminating symbol sequence number K of the descending transmission after the OFDM symbol that CCA takies meets 8 ＜=K ＜ 11,
Then in this subframe, each ECCE comprises 8 EREG.
If it is last subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Terminating symbol sequence number K of the descending transmission after the OFDM symbol that CCA takies meets 4 ＜=K ＜ 8,
Then in this subframe, each ECCE comprises 12 EREG.
If it is last subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Terminating symbol sequence number K of the descending transmission after the OFDM symbol that CCA takies meets K ＜ 4, then
In this subframe, each ECCE comprises 16 EREG.
Example B
When the first subframe is extension CP configuration:
If it is first subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Primary sign sequence number K of the descending transmission after the OFDM symbol that CCA takies meets K ＜=4, then
In this subframe, each ECCE comprises 8 EREG.
If it is first subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Primary sign sequence number K of the descending transmission after the OFDM symbol that CCA takies meets 4 ＜ K ＜=8,
Then in this subframe, each ECCE comprises 12 EREG.
If it is first subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Primary sign sequence number K of the descending transmission after the OFDM symbol that CCA takies meets K ＞ 8, then
In this subframe, each ECCE comprises 16 EREG.
If it is last subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Terminating symbol sequence number K of the descending transmission after the OFDM symbol that CCA takies meets K ＞=9, then
In this subframe, each ECCE comprises 8 EREG.
If it is last subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Terminating symbol sequence number K of the descending transmission after the OFDM symbol that CCA takies meets 5 ＜=K ＜ 9,
Then in this subframe, each ECCE comprises 12 EREG.
If it is last subframe in downlink transfer of unlicensed spectrum, and this subframe is removed
Terminating symbol sequence number K of the descending transmission after the OFDM symbol that CCA takies meets K ＜ 5, then
In this subframe, each ECCE comprises 16 EREG.
Detector unit 130 number based on the EREG calculated detects EPDCCH.
In one example, detector unit 130 is configured to: obtain the use of configuration in the first subframe
The Physical Resource Block pair of the Physical Resource Block instruction middle to group (PRB Pair Set) in EPDCCH
The number of (PRB Pair) and frequency domain position；Number according to Physical Resource Block pair and frequency domain position
Detect EPDCCH.
In one example, group is received by above-mentioned Physical Resource Block from base station.Such as, UE 100
Also include: receive unit, receive EPDCCH group (EPDCCH Set) configuration information, described
EPDCCH group configuration information includes that Physical Resource Block is to group.
Such as, EPDCCH group configuration information can be by IE newly-increased in 3GPP TS 36.331
EPDCCH-SetConfig-r13 realizes:
NumberPRB-Pairs-r13 ENUMERATED{n2, n4, n8, n12, n16},
Wherein n12 and n16 is newly-increased, the number of instruction Physical Resource Block pair.
Furthermore, it is possible to the IE of the frequency domain position of the newly-increased Physical Resource Block pair representing EPDCCH group:
resourceBlockAssignment-r13 BIT STRING(SIZE(4..64))
In one example, each Physical Resource Block is to comprising 16 EREG (labelling EREG 0
To EREG 15).
Fig. 2 is the flow chart of the method 200 in UE according to embodiments of the present invention.It should be noted that
The all features described that combine with the embodiment of above-mentioned UE 100 are also applied for following methods and implement
Example.Method 200 can be performed by above-mentioned UE 100, and comprises the following steps.
In step S210, determine that the first subframe received in unlicensed spectrum is to shorten subframe, institute
State at least part of symbol in shortening subframe to cannot be used for strengthening Physical Downlink Control Channel EPDCCH.
In one example, described at least part of symbol is used for efficient channel assessment CCA.
In one example, described shortening subframe be only comprise descending pilot frequency time slot DwPTS or under
The special subframe of row physical channel.
In step S220, calculate each enhancing in the first subframe and control Channel Elements ECCE comprises
The number of enhancing resource unit group EREG.
Calculating in step S220 can according to the example A described above in association with UE 100 and/
Or B performs.
In step S230, number based on the EREG calculated detects EPDCCH.
In one example, described detecting step S230 includes: obtain configuration in the first subframe
For the Physical Resource Block of EPDCCH to the number of Physical Resource Block pair of instruction in group and frequency domain
Position；Number and frequency domain position according to Physical Resource Block pair detect EPDCCH.
In one example, method 200 also includes: receive EPDCCH group configuration information, described
EPDCCH group configuration information includes that Physical Resource Block is to group.
In one example, each Physical Resource Block is to comprising 16 EREG.
Fig. 3 shows the block diagram of base station 300 according to embodiments of the present invention.As it can be seen, base station
300 comprise determining that unit 310, computing unit 320 and transmitting element 330.People in the art
Member should be understood that base station 300 also includes realizing its function other functional units necessary, as various
Processor, memorizer etc..
Determine that unit 310 determines that the first subframe to send in unlicensed spectrum is to shorten subframe,
In described shortening subframe, at least part of symbol cannot be used for strengthening Physical Downlink Control Channel
EPDCCH。
In one example, described at least part of symbol is used for efficient channel assessment CCA.
In one example, described shortening subframe be only comprise descending pilot frequency time slot DwPTS or under
The special subframe of row physical channel.
Computing unit 320 calculates each enhancing in the first subframe and controls to comprise in Channel Elements ECCE
The number of enhancing resource unit group EREG.
Computing unit 320 can come according to the example A described above in association with UE 100 and/or B
Perform calculating.
Transmitting element 330 number based on the EREG calculated sends EPDCCH.
In one example, transmitting element 330 is configured to: according to the use of configuration in the first subframe
The number of the Physical Resource Block pair of instruction and frequency domain position in the Physical Resource Block of EPDCCH is to group
Put and send EPDCCH.
In one example, transmitting element 330 is also configured to send EPDCCH and assembles confidence
Breath, described EPDCCH group configuration information includes that Physical Resource Block is to group.Here, EPDCCH
Group configuration information can be as described in above in association with UE 100.
In one example, each Physical Resource Block is to comprising 16 EREG.
Fig. 4 is the flow chart of the method 400 in base station according to embodiments of the present invention.It should be noted that
The all features described that combine with the embodiment of above-mentioned base station 300 are also applied for following methods and implement
Example.Method 400 can be performed by above-mentioned base station 300, and comprises the following steps.
In step S410, determine that the first subframe to send in unlicensed spectrum is to shorten subframe,
In described shortening subframe, at least part of symbol cannot be used for strengthening Physical Downlink Control Channel
EPDCCH。
In one example, described at least part of symbol is used for efficient channel assessment CCA.
In one example, described shortening subframe be only comprise descending pilot frequency time slot DwPTS or under
The special subframe of row physical channel.
In step S420, calculate each enhancing in the first subframe and control Channel Elements ECCE comprises
The number of enhancing resource unit group EREG.
Calculating in step S420 can according to the example A described above in association with UE 100 and/
Or B performs.
In step S430, number based on the EREG calculated sends EPDCCH.
In one example, forwarding step S430 includes: according to being used for of configuring in the first subframe
The number of the Physical Resource Block of the EPDCCH Physical Resource Block pair to indicating in group and frequency domain position
Send EPDCCH.
In one example, method 400 also includes: send EPDCCH group configuration information, described
EPDCCH group configuration information includes that Physical Resource Block is to group.
In one example, each Physical Resource Block is to comprising 16 EREG.
According to embodiments of the invention, (such as accounted for by CCA at unlicensed spectrum upper part symbol
With) cannot be used in the subframe (i.e. shortening subframe) of EPDCCH, it is possible to correct transmission and connecing
Receive EPDCCH.
It should be understood that the above embodiment of the present invention can pass through software, hardware or software and hard
Being implemented in combination in of both parts.Such as, the base station in above-described embodiment and each within subscriber equipment
Planting assembly to be realized by multiple device, these devices include but not limited to: analog circuit device
Part, digital circuit device, Digital Signal Processing (DSP) circuit, programmable processor, special
Integrated circuit (ASIC), field programmable gate array (FPGA), PLD (CPLD),
Etc..
In this application, " base station " refers to have bigger transmitting power and the movement of wider area coverage
Communication data and control switching point (CSP), the function such as including resource allocation scheduling, data receiver transmission.
" subscriber equipment " refers to customer mobile terminal, such as, include that mobile phone, notebook etc. can be with
Base station or micro-base station carry out the terminal unit of radio communication.
Additionally, embodiments of the invention disclosed herein can realize on computer program.
More specifically, this computer program is following a kind of product: have computer-readable medium,
On computer-readable medium, coding has computer program logic, when performing on the computing device, and should
Computer program logic provides relevant operating with the technique scheme realizing the present invention.When at meter
When performing at least one processor of calculation system, computer program logic makes processor perform basis
Operation (method) described in inventive embodiments.This set of the present invention typically be provided as arrange or
Encode the computer-readable medium at such as light medium (such as CD-ROM), floppy disk or hard disk etc.
On software, code and/or other data structures or the most one or more ROM or RAM
Or in firmware on PROM chip or other media of microcode or one or more module can
The software image of download, shared data bank etc..Software or firmware or this configuration may be installed calculating
On equipment, so that the one or more processors in calculating equipment perform the embodiment of the present invention and are retouched
The technical scheme stated.
The present invention is shown already in connection with the preferred embodiments of the present invention although above, but this area
Skilled person will appreciate that, without departing from the spirit and scope of the present invention, can be right
The present invention carries out various amendment, replaces and change.Therefore, the present invention should not come by above-described embodiment
Limit, and should be limited by claims and equivalent thereof.
Claims (24)
1. the method in user equipment (UE), including:
Determine that the first subframe received in unlicensed spectrum is to shorten subframe, in described shortening subframe
At least partly symbol cannot be used for strengthening Physical Downlink Control Channel EPDCCH；
Calculate each enhancing in the first subframe and control the enhancing resource list comprised in Channel Elements ECCE
The number of tuple EREG；
Number based on the EREG calculated detects EPDCCH.
Method the most according to claim 1, wherein, described at least part of symbol has been used for
Effect channel estimating CCA.
Method the most according to claim 1 and 2, described detection includes:
Obtain the Physical Resource Block for EPDCCH configured in the first subframe to instruction in group
The number of Physical Resource Block pair and frequency domain position；
Number and frequency domain position according to Physical Resource Block pair detect EPDCCH.
Method the most according to claim 3, also includes:
Receiving EPDCCH group configuration information, described EPDCCH group configuration information includes that physics provides
Source block is to group.
Method the most according to claim 1, wherein, described shortening subframe be only comprise descending
Pilot time slot DwPTS or the special subframe of down physical channel.
Method the most according to claim 1, wherein, each Physical Resource Block is to comprising 16
Individual EREG.
7. a user equipment (UE), including:
Determine unit, determine that the first subframe received in unlicensed spectrum is to shorten subframe, described
Shorten at least part of symbol in subframe to cannot be used for strengthening Physical Downlink Control Channel EPDCCH；
Computing unit, calculates each enhancing in the first subframe and controls to comprise in Channel Elements ECCE
Strengthen the number of resource unit group EREG；
Detector unit, number based on the EREG calculated detects EPDCCH.
UE the most according to claim 7, wherein, described at least part of symbol has been used for
Effect channel estimating CCA.
9., according to the UE described in claim 7 or 8, described detector unit is configured to:
Obtain the Physical Resource Block for EPDCCH configured in the first subframe to instruction in group
The number of Physical Resource Block pair and frequency domain position；
Number and frequency domain position according to Physical Resource Block pair detect EPDCCH.
UE the most according to claim 9, also includes:
Receive unit, receive EPDCCH group configuration information, described EPDCCH group configuration information
Including Physical Resource Block to group.
11. UE according to claim 7, wherein, described shortening subframe be only comprise descending
Pilot time slot DwPTS or the special subframe of down physical channel.
12. UE according to claim 7, wherein, each Physical Resource Block is to comprising 16
Individual EREG.
Method in 13. 1 kinds of base stations, including:
Determine that the first subframe to send in unlicensed spectrum is to shorten subframe, described shortening subframe
In at least partly symbol cannot be used for strengthening Physical Downlink Control Channel EPDCCH；
Calculate each enhancing in the first subframe and control the enhancing resource list comprised in Channel Elements ECCE
The number of tuple EREG；
Number based on the EREG calculated sends EPDCCH.
14. methods according to claim 13, wherein, described at least part of symbol is used for
Efficient channel assessment CCA.
15. include according to the method described in claim 13 or 14, described transmission:
According to the Physical Resource Block for EPDCCH of configuration in the first subframe to instruction in group
Number and the frequency domain position of Physical Resource Block pair send EPDCCH.
16. methods according to claim 15, also include:
Sending EPDCCH group configuration information, described EPDCCH group configuration information includes that physics provides
Source block is to group.
17. methods according to claim 13, wherein, described shortening subframe be only comprise under
Row pilot time slot DwPTS or the special subframe of down physical channel.
18. methods according to claim 13, wherein, each Physical Resource Block is to comprising 16
Individual EREG.
19. 1 kinds of base stations, including:
Determine unit, determine that the first subframe to send in unlicensed spectrum is to shorten subframe, institute
State at least part of symbol in shortening subframe to cannot be used for strengthening Physical Downlink Control Channel EPDCCH；
Computing unit, calculates each enhancing in the first subframe and controls to comprise in Channel Elements ECCE
Strengthen the number of resource unit group EREG；
Transmitting element, number based on the EREG calculated sends EPDCCH.
20. base stations according to claim 19, wherein, described at least part of symbol is used for
Efficient channel assessment CCA.
21. are configured to according to the base station described in claim 19 or 20, described transmitting element:
According to the Physical Resource Block for EPDCCH of configuration in the first subframe to instruction in group
Number and the frequency domain position of Physical Resource Block pair send EPDCCH.
22. base stations according to claim 21, described transmitting element is also configured to
Sending EPDCCH group configuration information, described EPDCCH group configuration information includes that physics provides
Source block is to group.
23. base stations according to claim 19, wherein, described shortening subframe be only comprise under
Row pilot time slot DwPTS or the special subframe of down physical channel.
24. base stations according to claim 19, wherein, each Physical Resource Block is to comprising 16
Individual EREG.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510242503.4A CN106304340A (en) | 2015-05-13 | 2015-05-13 | Subscriber equipment, base station and correlation technique |
| PCT/CN2016/081835 WO2016180352A1 (en) | 2015-05-13 | 2016-05-12 | User equipment, base station and related method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510242503.4A CN106304340A (en) | 2015-05-13 | 2015-05-13 | Subscriber equipment, base station and correlation technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106304340A true CN106304340A (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510242503.4A Pending CN106304340A (en) | 2015-05-13 | 2015-05-13 | Subscriber equipment, base station and correlation technique |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106304340A (en) |
| WO (1) | WO2016180352A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9167580B2 (en) * | 2012-05-16 | 2015-10-20 | Samsung Electronics Co., Ltd. | Method and apparatus for transmission of physical channel in DwPTS |
| WO2014015501A1 (en) * | 2012-07-26 | 2014-01-30 | 华为终端有限公司 | Control channel transmission method and device |
| CN103582135B (en) * | 2012-07-27 | 2018-05-25 | 上海诺基亚贝尔股份有限公司 | A kind of method for the eCCE for being configured to ePDCCH |
| CN103684701A (en) * | 2012-09-07 | 2014-03-26 | 北京三星通信技术研究有限公司 | Method and equipment for configuring space diversity of ePDCCH |
| US9692569B2 (en) * | 2013-04-03 | 2017-06-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for control channel resource allocations in constrained and unconstrained subframes in a wireless communication network |
-
2015
- 2015-05-13 CN CN201510242503.4A patent/CN106304340A/en active Pending
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| WO2016180352A1 (en) | 2016-11-17 |
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