CN103931239B - Terminal is set to obtain method, terminal, large area cell and the small area cell of system information - Google Patents
Terminal is set to obtain method, terminal, large area cell and the small area cell of system information Download PDFInfo
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/32—Hierarchical cell structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
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Abstract
The present invention relates to a kind of wireless access telecommunication network systems, it includes at least small area cell and large area cell, terminal in activation pattern, which is configured as establishing with the small area cell, data connection, and the terminal is configured to reside in the large area cell when in idle mode.It is a kind of to make that terminal at least obtains large area cell system information and the method for small area cell system information includes, when the large area cell wireless interface that terminal is in idle mode and terminal enables, terminal is by the large area cell wireless interface from the reception first part of the large area cell at least large area cell system information and at least first part of small area cell system information.
Description
Technical field
In general, the present invention relates to field of wireless telecommunications, in particular it relates to from cell to terminal distribution system
The field for information of uniting.
Background technique
Cellular radio access telecommunication network (system) typically comprises multiple base stations, such as: the base station in well known GSM
Sending and receiving stations, the NodeB or eNB of the evolution in NodeB and LTE in WCDMA (UMTS).Base station include at least send and
Receiving device is to support to carry out wireless communication with terminal (may be mobile), and for if standard, which is exactly logical
The UE (user equipment) of Chang Suozhi.The coverage area of emitter/receiver is limited in base station.Transmitter/reception in base station
The region that device can service is referred to as " overlay area " or " cell ".Term " cell " refers to base station itself and has therewith
The area of coverage of pass.Usual cell is related to the particular sector (such as 120 degree) from base station location to external radiation, more sectors (cell)
Can be with the whole region around coverage base station position, or specific interest region can be covered (such as to cover highway portion
The narrow sector divided).
Cell (base station) in cellular network connects typically via one or more return links (backhaul link)
It is connected to the remainder of the network, such as passes through optical fiber, copper wire or wireless.Cell further includes processing capacity, such as wireless
Send, receive and base station and terminal between, between base station and network specific protocol processing, including other base stations (cell).
In cellular network, different community has different sizes, such as is expressed as according to the sequence that cell size is successively decreased macro
Cell (macrocell), Microcell (microcell), picocell (picocell) or Femto cell
(femtocell).Cell can be shown as partly overlapping with neighboring community or can compared with small area cell (such as picocell)
To be completely covered by larger area cell (such as macrocell), multiple cell can form cellular network, thus very big
The covering of nearly singular integral is provided in region.
In cellular radio networks, usually wanting distinguishing terminal is to be in " activation pattern " in " idle mode ".?
Activation pattern, terminal can be exchanged data by the cell where it and (such as send/receive Email or to establish phone logical
Words).This needs Internet resources (such as frequency and/or coding and/or time slot), it is also desirable to which terminal and network provide certain purpose
Power consumption.In idle mode, terminal cannot exchange data, therefore not need above-mentioned resource, consume less power consumption.Idle mode
Terminal only need to periodically listen to the signal of Cell Broadcast CB, and select " best cell ", such as can receive with terminal most strong
Signal cell.Terminal in idle mode also monitors paging channel, the cell transmission which is used to be selected
Paging message is to terminal.The terminal of this (idle mode) the referred to as cell of " resident " in selection.Such as due to terminal
Mobility, when different community is identified as best cell, terminal can reselect different cells as " best small
Area ", and reside in the cell of the new selection.It should be noted that the usually not notifying cell of the terminal in idle mode
And/or network its which cell resided in, do not inform when it reselects a different community as best cell yet.When
Terminal reselects cell, which is to be located at different location region (LA, i.e. local zone or RA, i.e. Routing Area), the position
Setting area is that terminal is determined according to cell system information, and then terminal passes through the cell execution LA or RA more new procedures newly selected
(comprising between terminal and cell signaling or network control message exchange) initiate and network connection, then proceed by it
Monitoring behavior, it is as described above.In this way, network can know the LA/RA where non-occupied terminal.LA/RA generally includes multiple by net
The cell of network operator configuration.Therefore, network is not aware which cell is the terminal in idle mode reside in, it is only
Can know non-occupied terminal is in (expectation exists) which LA/RA.
In aerogram cellular network, each cell, that is, base transceiver station, NodeB and eNB are in work
When state, it is very usual for usually broadcasting so-called " system information " to the terminal in cell coverage area.This can be by Fig. 1
Shown in schematic diagram indicate, cell 1 is in its overlay area (sector shown in FIG. 1 with shallow shade) interior broadcast system information
9, this system information can be received by the terminal 2 in the cell, and Fig. 1 also illustrates cell 1 and is connected to network 3.
The system information that cell is sent is related to widely being provided below with cell and/or network operation relevant information
System information and terminal use the example of the information.Those skilled in the art will recognize that system information may include
One or more such examples, and information terminal is capable of the other systems information of itself configuration based on the received.
In an example, system information may include network instruction, such as public land mobile network belonging to cell
(PLMN), terminal can be made to receive this information to determine whether terminal can be used the cell actually.In another example
In, system information may include the instruction of cell status, such as whether cell is in running order and/or have and such as connect
Enter grade, any restrictions of application.This information makes terminal determine whether terminal can be used at that time.Moreover, system is believed
Breath further includes the instruction of cell ID (Cell ID), and terminal can be made to determine cell ID in a network.In other instances,
System information may include the instruction of cell configuration, as the frequency of cell operation, frequency band, coding or time slot and cell provide
Channel configuration information, it is (random to receive the various channels of cell and/or RACH to enable the terminals to configure correctly setting
Access channel) such as frequency, channel and coding parameter instruction, enable to terminal that can initiate the connection with cell.More into
One step, system information may include information of adjacent cells, such as the mark including adjacent cell and/or tranmitting frequency and/or coding
And/or the adjacent cell list of time slot.If network support multi-radio access technology (RATs), such as GSM (GERAN-GPRS/
EDGE Radio Access Network), UMTS (UTRAN- Universal Terrestrial Radio Access Network network, using WCDMA- wideband code division multiple access), or
Person LTE (E-UTRAN- evolution UTRAN, using OFDM, i.e. orthogonal frequency division multiplexing), information of adjacent cells can be respectively by each
RAT is provided, this is convenient for (quick) the discovery adjacent cell of terminal, such as in order to reselect or be switched to the mesh of potential cell
And be able to enter adjacent cell.However in another example, system information may include such as reselecting cell and/or holding
The row report measurement adjacent cell thresholding and/or instruction in other frequencies and/or the standard of RATs, allow network advertisement terminal its
The standard that should be applied in network and/or cell.
Cell broadcasting system information is very usual, such as in broadcast channel, and all terminals of cell coverage area are all
The system information of cell can be received.Typically, sequence cyclically sends system information to cell in sequence, essence
On be continuous mode, such as send system information to rotational structure circulating repetition as shown in Fig. 2.As shown in Fig. 2, following
Ring 4 include have it is different classes of, be expressed as the system information that block M, S1, S2, S3 and S4 are organized together.Block M is for describing
The Master Information Block (MIB) of example, comprising for the necessary system information of most of in network or whole terminals, and block S1-S4 is used
In description additional system information block (SIB), the additional information that only certain terminals need is carried.Circulation 4 can be 5 institute of sequence
That shows continuously repeats the system information of transmission, and sometimes, some system information blocks can also be replaced other blocks, such as 6 institute of sequence
Last block S3 and S4 is replaced new system information block S5 and S6 in the sequence 6 shown.Despite this, middle sequence shown in Fig. 2
In 5 and 6, system information is all continuously transmitted.
In the major part using local resource (such as high code rate and/or broadband) and the fraction using local resource
For that should be weighed between broadcast system information.Short circulation time can be achieved using the major part of resource, enable to terminal
It can receive whole system informations of only small delay, but need considerable local resource.In contrast, the small of resource is utilized
Part can cause longer circulation time, and terminal has to receive higher delay when receiving whole or particular system information.
Under state-of-the art, flexibly and effectively distribution system information is sufficiently paid attention to.However in practice,
It broadcasts these information and had not only needed cell portion resource, but also need to occupy the transmission power consumption and energy consumption of cell portion.Although this is
Seldom a part of (such as less than 10%) of cell peak power, it should be noted that the consumption is substantially constant
, especially in the only small flow load period, the distribution of system information may also occupy very big ratio spending.Therefore exist
Under traditional network architecture, seem that there are also improve the space promoted in terms of the distribution system information in a manner of resource efficiency.
Recently, a kind of new network architecture with more high energy efficiency is developed, and is on the one hand utilized in new framework
Relatively small cell, high code rate data connection, which is compared, uses a small amount of large area cell (such as macrocell), and uses a large amount of
(least partially overlapped) small area cell (such as Microcell, picocell, millimicro cell) is more efficient.On the other hand new
In framework the power consumption of cell according to actually provide service (such as the number for the terminal being active, being supplied to terminal
Code rate is connected to the distance that terminal is passed through etc.) it is also that can predict as much as possible.To realize this hope, a kind of method
Including making the terminal for indeed not being in state of activation enter energy-saving mode, such as these almost totally closed cells.Another kind supplement
Method includes the main general broadcasting signal for reducing or limiting in transmission traditional network, and the transmission of these broadcast singals can draw
A large amount of power consumption spending is played, especially for the cell for being less than full load work.
As shown in figure 3, new framework hypothesis is divided into two kinds of cell.The cell of first seed type claims herein
Be " small area cell ", such as the cell 7 in Fig. 3, be mainly used for optimization to carry out wireless data friendship between active terminal 2
It changes, high energy efficiency improvement described above is concentrated mainly on small area cell.The cell of second of type, referred to herein as
" large area cell " is mainly used for optimizing the other function of cellular network, be included in traditional network such as the cell 8 in Fig. 3
Also have.It is also foreseeable for reducing in this way and distributing to the system overhead of large area cell.
Large area cell typically covers biggish region, such as compared to traditional macrocell.Large area cell is similar to
Traditional network is it is desirable that the region covered is capable of providing the covering of nearly singular integral.Large area cell can be as traditional cell one
Sample broadcast system information, idle terminal can be resident in large area cell, can also initiate to connect with the signaling of large area cell
It connects, such as executes LA/RA and update or disconnected between network.
Small area cell typically covers lesser region, such as small compared to traditional Microcell, picocell, millimicro
Area.Small area cell is it is desirable that the region of the nearly singular integral covered is capable of providing specific code rate.Small area cell is only in necessity
When just send signal, usually it is in " closings " in other words in energy saving or standby mode.Idle terminal is not yet
It resides in small area cell.Although this network is by as " a super honeycomb green generation " (beyond cellular Green
Generation) (BCG2) network, what which may change in the future.Therefore, in the present invention, with this framework
Network will be by as " high energy efficiency cellular radio ".
Since terminal must handle two kinds of cell, one or more big faces in high energy efficiency cellular radio
Product cell and one or more related small area cells, for one or more related large area cells and one or more
A correlation small area cell terminal is also required to relevant system information, so as to cause two problems.
The fact based on following can cause a problem, when non-occupied terminal activation, as non-occupied terminal establishes data meeting
Words, referred to as " establishing session (session set-up) " operate, and suitable small area cell needs are selected as supporting the session.
In the processing for establishing session, for one or more candidate small area cells, terminal is also required to obtain relevant system letter
Breath, such as cell ID, frame timing, bandwidth of cell etc..Moreover, when the suitable small area cell for being used for session is selected
Afterwards, terminal needs the additional system information of small area cell.If selected small area cell be currently at closing or
Described energy-saving mode in BCG2, small area cell needs are activated.One suitable small area of selection and activation
Cell needs some times.As a result, being needed a period of time before sufficiently activating in small area cell to provide necessary system letter
It ceases to terminal.In addition, due to the concept of high energy efficiency cellular radio provide be high-efficiency dynamic configuration small area cell,
So using specific small area cell previously obtained small area cell system information (such as previously establish session when obtain
The small area cell system information that must be stored) the no longer valid height of the small area cell system information previously obtained will be born
Risk, therefore, it is necessary to provide the terminal with related newest small area cell system information so that its quickly with suitable facet
Product cell establishes data session.
The fact based on following can cause another problem, when activated terminals assume after completing total data session into
Enter idle mode, terminal needs to reside in again in large area cell.For this purpose, needing to obtain in terminal one or more
During the pertinent system information of candidate large area cell, such as cell ID, frame timing, bandwidth of cell, paging channel, terminal
It executes cell searching and/or cell reselects program.In high energy efficiency cellular radio, although large area cell configures
Less dynamically, but the large area cell system information previously obtained may be used (such as to build compared to the configuration of small area cell
The large area cell new system information obtained before vertical data session) still there is the large area cell system for previously having obtained storage
The no longer valid risk of information.This may be following situation, modified at this time due to large area cell system information or
Large area cell system information is no longer related, such as since terminal is moved to different large area cell coverage areas, the big face
Product cell had not obtained any relevant information of storage previously.To obtain related newest large area cell system information, terminal
Cell search procedure when running can be performed similarly to again.In this way, finding suitable large area cell to carry out in terminal
Before paging channel that is resident and can once again listening for the large area cell, terminal needs to spend a period of time.As a result, working as
When terminal enters idle mode from activation pattern, it is desirable to provide to the related newest large area cell system information of terminal so that
Terminal can quickly reside in suitable large area cell again, and (it, which can be, is resident it with terminal before data session foundation
In the identical or different large area cell of cell).
According to the description of front, in a manner of more high energy efficiency in allocated legacy network system information method and system
It is necessary.In addition, this field needs in a manner of being able to solve the above problem in high energy efficiency cellular radio, such as
In BCG2 network, the method and system of large area cell system information and small area cell system information are distributed, and be preferred
High energy efficiency radio resource, high energy efficiency energy and can satisfy hardware and terminal computing resource effective requirement.
Summary of the invention
According to the first aspect of the invention, in wireless access telecommunication network system, including at least small area cell and greatly
Area cell, the terminal in activation pattern, which is configured as establishing with the small area cell, data connection, in idle mould
The terminal is configured to reside in the large area cell when formula, and a kind of terminal at least obtains large area cell system letter
The method of breath and small area cell system information.The described method includes: when terminal is in the large area of idle mode and terminal
When cell wireless interface enables, terminal is at least used by the large area cell wireless interface from large area cell reception
In the first part of the large area cell system information of terminal and at least for the small area cell system information of terminal the
A part.
The embodiment of program thought based on following realizes that large area cell can be used for sending large area cell
System information and at least in large area cell coverage area with terminal may the related small area of relevant small area cell it is small
Sound zone system information.In another embodiment, large area cell, which can be configured as, is sent out using broadcast/common signal channel to terminal
All system informations are sent, and in alternate embodiments, large area cell can be configured to utilize one or more dedicated signalings
Channel is to individual terminal at least transmitting portion system information.
In one embodiment, the method further includes terminal, the terminal configuration is one or more at least partly
Setting based on received small area cell system information and/or received large area cell system information, furthermore optionally,
Terminal can store at least partly received small area cell system information and/or large area cell system information for making in the future
With.In another embodiment, as long as being in idle mode, non-occupied terminal may be only using received and possible storage
Large area cell system information to configure its setting, however received small area cell system information may be only stored with
For later possible use.Only when terminal will enter activation pattern, terminal may also be applied received and may be stored
Small area cell system information, the specific small area cell that will be connected and/or be already connected to further configurating terminal
Setting.
Sentence " information that cell is sent to terminal " used herein, " information for terminal " and its deformation description are used
The system information of terminal is issued, such as the interests of terminal.Such as some system informations are mainly used to be sent in the free time
The terminal of mode, some other system information is for issuing the terminal for not considering its locating mode.In this respect, cell is sent
System information it is whether practical to be received and/or used by terminal be inessential, such as when cell passes through broadcast letter
When road sends system information, it enables all terminals in the cell coverage area to receive system information.However, in fact,
And not all but only some terminals are interesting to the system information of transmission, and other terminals do not have then.Moreover, not
The terminal that all but more only pair transmission system information may be interested in is an actually-received, and other terminals may
It is not received by (such as due to sending mistake, since terminal is carrying out other task dispatchings), such as since the system of transmission is believed
Breath be previously obtained, other terminals may only, may also deliberately ignore those transmissions.
In embodiment of the present invention, word " large area cell " and " small area cell " are for distinguishing two kinds of different types
Cell.
The cell of first seed type, large area cell (Large Area cell, LA-cell) are referred to compared to second
The cell of type can cover large area and have the cell compared with low bit- rate.Large area cell is mainly used for carrying to connect transmitting/receiving
Toward the signaling information of terminal, as large area cell can at least page (page) terminal.Terminal in idle mode should be able to
In enough " resident " large area cells as at least one.Large area cell be not mainly used for carry receive/be sent to terminal
Wireless user data, the user data that it is not excluded for other signalings in addition to paging or is carried by large area cell.
In the region that Radio Access Network to be covered, at least one large area cell is in full working condition, in other words, greatly
Area cell is " normally open ".
The cell of second of type, small area cell (Small Area cell, SA-cell) are referred to compared to cell
Smaller area and the cell with high code rate can be covered.Small area cell is mainly used for carrying user data, these users
Data are to receive/be sent to the end that data connection (connection that such as small area cell initial management and activated terminals are established) has been established
End, still, it is not exclusively by the other information and/or signaling of small area cell carrying.It is intended to cover in Radio Access Network
The region of lid, it can be assumed that covering is at least capable of providing by a small area cell.Only when in a way when necessary,
Small area cell is only in full working condition, and in other words, small area cell is " normally closed ".
Embodiment according to the present invention, small area cell can reside in any hybrid band and/or wireless access technology
(RATs), it does not exclude the presence of different size of small area cell (such as macrocell, Microcell, picocell and millimicro cell,
With or without hierarchical organization), biggish small area cell can more effectively service mobile terminal here.
In the application, statement " data connection between terminal and small area cell " is referred to for terminal and small area
The communication path of the switched wireless of user data between cell.The use including the part between terminal and small area cell
The communication path of user data is usually established according to one group of parameter, such as need to be to be switched based on which type of user data
(be such as used to send/Email is received, for voice or visual telephone etc.).This group of parameter, this field are commonly referred to as
" qos parameter " or " QoS grade " may include such as maximal rate, guarantee (minimum) code rate, the bit error rate and extension/delay.
In comparison, the signaling message exchanged between terminal and large area cell do not include user data, terminal with
Various exchanged between entities in telecommunication system, signaling message is without establishing connection but by with appropriate code rate and can
Lossless " signaling connection " for realizing high quality signaling information swaps.When using signaling connection, largely with its energy
" data connection " parameter being connected to is unrelated.
Further, it is to be understood that word " user data " and " user terminal " need not be implied, there are mankind's use
Family, embodiment of the present invention are suitable for checking mail when nobody intervenes such as smart phone and are suitable for machine to machine
Device (M2M) communication and/or machine-type communication (MTC).Word " user data " be used only for distinguish for by data connection with
The real data of signaling exchange.
According to described herein, terminal with or in " activation pattern " or can be in " idle mode ".According to making here
With, statement " terminal in idle mode " refer to terminal neither exchanging user data can not exchanging user data, but
It resides in large area cell and monitors the possible paging message from large area cell to terminal.In other words, it states
" terminal in idle mode " is used to describe terminal and does not support the wireless of between terminal and small area cell user data
Exchange.On the contrary, statement " terminal in activation pattern " refers to terminal or exchanging user data or at least through a facet
Product cell being capable of exchanging user data.In other words, activated terminals are supported or can be supported between terminal and small area cell
The switched wireless of user data.The concept of idle mode and activation pattern can be equivalent to the concept in standard traditional network,
But it need not be defined with standard just consistent.
In embodiments, the method also includes: when the small area cell that terminal is in activation pattern and terminal is wireless
When interface enables, terminal at least receives the second part of the small area cell system information.Additionally or alternatively, work as terminal
When being enabled in the small area cell wireless interface of activation pattern and terminal, the method also includes: terminal passes through the facet
Product cell wireless interface at least receives the second part of large area cell system information from the small area cell.
In alternate embodiments, the method also includes: when terminal is in activation pattern and small area cell wirelessly connects
When mouth enables, terminal enables the large area cell wireless interface within one or more time cycles, and passes through the big face
Product cell wireless interface receives the second part of at least large area cell system information from large area cell.In embodiments,
In activation pattern and terminal that large area cell wireless interface enables can also be by large area cell wireless interface from big face
Product cell receives the second part of small area cell system information.In another embodiment, when the terminal for being in activation pattern
When receiving triggering to enable the large area cell wireless interface, at least one of one or more of time cycles
Occur.The triggering can be by large area cell or pass through the small area by network controlling entity in Radio Access Network
Cell is supplied to one or more triggerings of terminal, and terminal executes a small area cell from Radio Access Network to another
The switching of one small area cell, the timer expiry in terminal.
In embodiments, the method also includes: when the large area cell that terminal is in idle mode and terminal is wireless
When interface enables, terminal receives at least partly small area from the large area cell by the large area cell wireless interface
Cell system information, part facets product cell system information and other small areas one or more in Radio Access Network are small
At least one of area correlation.
In embodiments, the method also includes: when terminal is in idle mode, terminal by large area cell without
Line interface from large area cell receive at least one for receive the small area cell system information small area cell swash
State living.
In embodiments, the method also includes: when the large area cell wireless interface enable when deactivate it is described small
Area cell wireless interface deactivates the large area cell wireless interface when the small area cell wireless interface enables.
According to another aspect of the present invention, large area cell of the large area cell for method described here is disclosed.Institute
It states large area cell to be at least configured to: real from the small area cell and/or from the network management of wireless access telecommunication network
Body obtains the first part of at least small area cell system information；And it sends at least small area cell system and believes
The first part of breath and the first part of at least large area cell system information.In embodiments, the big face
Product cell is also configured as obtaining and sending the system information of other small area cells and/or other large area cells, these information
Also it can directly and/or from the network management entity of wireless access telecommunication network be obtained from other cells.
In embodiments, the first part of at least large area cell system information uses preassigned pattern, preferably
Periodically send.In activation pattern, terminal may switch back to large area intercell interference to obtain large area cell system information.With pre-
Mould-fixed, which sends large area cell system information, allows terminal to be aware of when to switch back into large area intercell interference.
According to other aspects of the invention, the small area cell for method described here is disclosed.The small area is small
Area is at least configured that the first part for providing at least small area cell system information to large area cell to be sent to end
End.
According to other aspects of the invention, a kind of terminal is disclosed, with the computer for executing various functions described here
Program part (may distribution), for the data medium and telecommunication system of this software section.The telecommunication system includes two
It is a or multiple such as above-mentioned terminal, large area cell and small area cell.
In the following, embodiment of the present invention detailed will describe, it is understood, however, that these embodiments are not
It is construed to limiting the scope of the present invention.
Detailed description of the invention
In figure:
Fig. 1 is the schematic diagram of system information distribution in traditional network；
Fig. 2 is the schematic diagram according to the system information of the prior art continuously transmitted；
Fig. 3 is the schematic diagram that high energy efficiency cellular radio accesses telecommunication network small areas cell and large area cell；
Fig. 4 is the schematic diagram that system information is sent according to the resting period of embodiments of the present invention；
Fig. 5 is the schematic diagram of the transmission system information of the triggering of different embodiments according to the present invention；
Fig. 6 is the schematic diagram according to the high energy efficiency telecommunication system of embodiments of the present invention；
Fig. 7 is according to large area cell in the telecommunication network of an embodiment of the invention and multiple small area cells
Overlay area schematic diagram；
Fig. 8 is wireless in small area cell according to the terminal in time division multiplexing of an embodiment of the invention
Interface and the alternate schematic diagram of large area cell wireless interface；
Fig. 9 provides small area cell system information to end for the small area cell according to an embodiment of the invention
End and large area cell provide large area cell system information to the schematic diagram of terminal；
Figure 10 is according to the acquisition one or more small area cell system information of an embodiment of the invention and one
The flow chart of a or multiple large area cell system information method and steps；
Figure 11 provides large area cell system information and small for the large area cell according to an embodiment of the invention
Schematic diagram of the area cell system information to terminal；
Figure 12 provides large area cell system information and small for the large area cell according to an embodiment of the invention
Schematic diagram of the area cell system information to terminal；
Figure 13 provides small area cell system information and big for the small area cell according to an embodiment of the invention
Schematic diagram of the area cell system information to terminal；And
Figure 14 is provides small area cell system information and big face according to the small area cell of another embodiment of the present invention
Schematic diagram of the product cell system information to terminal.
Specific embodiment
Scheme #1-4 provides the method and system of a variety of distribution system information below.Scheme #1 is described with reference to such as Fig. 1
Shown in traditional network, and scheme #2-4 describes to apply the distribution system information in high energy efficiency network.However, ability
Field technique personnel can appreciate that the introduction in relation to the system information distribution executed by cell in traditional network, as scheme #1 can
Distribution system information is applied to by large area cell in high energy efficiency network and small area cell.
Scheme #1: the system information distribution that multiple embodiments provide according to the present invention
Scheme #1 is concentrated mainly on a possibility that improving cell distribution system information efficiency (including efficiency).As described above,
Scheme #1 is reference with traditional network as shown in Figure 1, but the embodiment of scheme #1 can be applied to any cell system information
In distribution, and it may not only be applied to conventional cell such as base transceiver station, NodeB or eNB, but also in high energy efficiency network
Small area cell and/or large area cell.
Scheme #1 provides five kinds of different modes to improve the efficiency of distribution system information in cell.First way is base
Carry out broadcast system information in the only a bit of time, remaining time does not send any system information, rather than as in the prior art
As usual substantially continuous transmission.The second way is based on ability broadcast system information when by specific events trigger.The
Three kinds of modes are based on carrying out transmission system information using the power to fall sharply substantially, rather than in view of path loss, cell
Common total power is used to broadcast to guarantee reliably to reach distalmost end in terms of the edge of the area of coverage.4th kind of mode is to be based on
The system information for having subtracted part is only sent, without cycling through system information portion using usual.Fifth procedure is based on logical
It crosses dedicated channel and only sends system information, and non-used general broadcast channel and the institute into cell footprint to particular terminal
The terminal that there may be sends system information, to be described in detail below this five kinds of different modes.
1. discontinuous sends system information (only with a bit of time)
The first realizes that the mode of system information higher energy efficiency distribution is cell, and cell 1 as shown in Figure 1 is only interrupted
Ground sends system information, such as only with a bit of time.For example, cell can be configured to be believed with 100 milliseconds (ms) transmission system informations
Number, the 900ms being followed by does not send any system information, is equivalent to for 1/10 time.For this purpose, cell may include at least emitting
To be ready for sending signal, cell may also include memory to store computer program instructions and processing unit for device and controller
To handle data and execute computer program, controller and/or transmitter can execute behaviour according to the computer program instructions
Make.
It can correspond to the complete alternation or particular system information of cell system information during sending system information signal
Part, these are schematically illustrated in Fig. 4 with signal 10, in the figure, the cell system letter including block M, S1, S2, S3, S4
The complete alternation of breath 10a is sent in time period t 1, and does not send any system information in time adjacent segments t2.Cell can weigh
The number of delivering letters 10 is recurred, to repeat to send the system information block M and S1-S4 for corresponding to 10a in time period t 1, adjacent
The system information corresponding to 10b is not sent in time period t 2, such as the signal 11 in figure.Optionally, certain parts of system information
It can be replaced by other parts, in signal 12, in some cases, system information block S5 and S6 can replace block S3 and S4.
Sending system information signal time experienced can also shorten, such as corresponding to system information (or system information
Part) circulation only only a fraction of.Therefore, the part of the complete alternation of system information or system information sends and can distribute
The system information signal period is not sent in multiple transmissions and, such as the signal 13 in Fig. 4, is compared to substantially continuous transmitting in this way
The case where information of uniting, increases the time that terminal obtains whole system informations.
Sending the system information signal time experienced can also compared to the complete alternation of system information or the part of system information
With longer.For example, this corresponds to the multi-cycle of system information or the partial picture of system information during may be one.Another
In one example, this may be to add again corresponding to the single cycle of cell system information or the part of system information the time experienced
On allow the case where extending the deadline, such as repeat to send cell and think more important or haggle over the part of system information or system information in advance
In the more urgent information of other information, to wish the information of more reliable transmission.Once terminal cannot receive system information portion
Divide or terminal detects or suspect that it mistakenly has received system information portion, this transmission system information mode will make end
Holding has the chance obtained again within the same system information transmission period or doubles the system information portion of verification repeating transmission.
Compared with system information transmission is essentially the conventional method of 100% time, change duty ratio in this mode
(duty rate) (" opening " time and " opening "+" closing " as being used to send system information or system information portion signal
The ratio between time) allowing reduction, there are the transmission powers of signal to roughly the same fraction.In one embodiment, cell
The maximum duty cycle that discontinuous sends system information or system information portion signal is, for example, 1/2 or 1/8, compared to continuously transmitting
Same signal, this can reach 2 times respectively or 8 times of power are saved.Different duty can be applied to the hair of different system information portions
It send, is such as determined according to the urgency level of terminal requirements information (it is expected that or wishing).
Following example can describe such case, and in current system, when terminal running, terminal starts cell searching
Program is to find cell appropriate with resident.As a part of program, terminal needs identify one or more candidate small
Area, for specific candidate cell, it may be necessary to determine network (public land mobile network) related with cell, cell mark
Know the operating status (such as currently whether it forbids the access of terminal and/or may overload) of instruction and/or cell.Existing
System it is commonly used in, substantially continuous or very frequent broadcast system information may be matched very with terminal requirements
It is good.However, such broadcast such as in special time period, is operated in specific cell without terminal very without high energy efficiency
And/or cell search procedure is executed without terminal.According to an embodiment of the present invention, pass through system needed for sending terminal
Information is only in fraction of time, such as once per second, to execute cell search procedure to improve efficiency, to receive particular system
The terminal of message part would have to wait for a period of time before really receiving information.In this example, under worst case, etc.
It will be one second to the time, on average, the waiting time will be half second.Due to consideration that the waiting time, is continuously transmitting
Time interval between system message part is preferably formed with the upper bound, so that the transmission upper bound is no more than waiting time or the expected appearance of terminal
The upper bound for the delay born.Such as prolong when terminal can tolerate that particular system message part is longer than another system message part
Chi Shi, sending the upper bound for different system information portions different can select.For example, being comprising cell handoff parameter
The transmission upper bound of system information can choose as the transmission than the system information comprising cell RACH (random access channel) parameter
The upper bound is much higher, for example, terminal needs RACH parameter before being connected to the cell of selection by RACH starting, and is switched to new
The terminal of cell can not be immediately required to handoff parameter relevant to cell.
It in one embodiment, can in the upper bound for continuously transmitting time interval or the interval between system information portion
To modify at any time, such as in time to peak, such as works as the morning that people tend to open mobile phone, can choose lower value, such as
0.25 second transmission upper bound as system information portion executes operation procedure for terminal.Then, when most of terminal is estimated
It is complete running, can choose high value, such as 1 second.At this point, even so high level so that have exceeded terminal usually can
The range of tolerance in order to realize energy conservation, and thinks acceptable.
Especially when discontinuity, which sends system information portion, to be performed periodically, such as every 1s, its hair of neighbouring cell synchronous
The particular system message part sent does not repeat so as to send, for example, cell A can if sending system information portion is less than 100ms
With at time point 1.0,2.0,3.0 seconds ... the system information for sending it is waited, neighbouring cell B is at time point 1.1,2.1,3.1
Second ... the system information for sending it is waited, the cell C of attachment was at time point 1.4,2.4,3.4 seconds ... waits the system letter for sending it
Breath.This is done so that terminals almost to execute cell search procedure on multiple candidate cells (such as cell A, B and C) simultaneously, and nothing
The average or maximum delay of candidate cell need to be undergone respectively.For example, the system information more than 10 cells can in upper figure
It is received in general 1 second, and the alternating (staggered) without system information portion is sent, and occupies 10 in the worst cases
Second (10 times that postpone 1 second time under such as worst case) is 5 seconds (10 times in the case of such as average retardation 0.5 second) average.Especially
Its cell in same PLMN or one group of cooperation PLMNs can be benefited from this method.
2. the combination triggering by a certain event, multiple events and/or event sends system information
In a kind of situation, terminal operates the system information for needing specific cell, and network and specific cell are not aware that terminal
Demand.In other cases, network and/or cell be known that and/or predict or predict terminal demand and/or can be with
Demand of the precognition terminal to particular system message part is made, therefore, in different embodiments, sends system information portion
Triggering may include indirect (implicit) or directly (explicit) triggering.
Triggering sends system information portion indirectly
For example, when terminal establishes data session by cell (usually terminal resident cell), network and especially
The cell prediction terminal for being related to the data session needs additional system information part.For example, terminal needs are specified in other cells
On measurement standard and reporting standards (for example, in so-called switching " event ", the e.g. signal level drop of serving cell
Exceed the event of serving cell signal level preset range to the signal level of scheduled threshold value and/or adjacent cell, this is predetermined
Range can just be born) parameter.In this case, cell can send system information immediately after establishing session by cell
Part substantially always repeats to send the system information portion compared to usual situation, and doing so can bring large energy to save.
In another embodiment, cell is using the first touching for having received (such as completing session establishment by cell)
Hair with send the time delay between pertinent system information part (such as terminal may need system information portion), such as 10
Second.Establish other terminals of session by same cell (for each it is believed that a triggering) within delay time
It can receive same system information portion, can reduce the burden that cell repeatedly sends same information in this way.
Preferably, length of delay should not exceed predetermined value corresponding with the acceptable maximum delay of terminal is generally considered that, such as
15 seconds.In this way, system information portion transmission can once notify when multiple terminals establish session within delay time
These terminals.
Those skilled in the art are able to recognize that only when (such as one or more additional sessions are built with system information portion
It is vertical) relevant other triggerings anticipated that then it is beneficial that application delay, which is sent, within delay time.And work as toggle rate (such as
Session establishment) it is lower, as lower than a session is established in each delay time, then delay may have smaller even zero
Value.
The delay of triggering system information portion is sent can have been combined with the power selection transmission that subtracts being described below in detail
Come.Subtract power setting should with based on farthest in one group of terminal for completing session establishment after path loss within the specific delays time
The terminal at end is corresponding.
Another example is that cell is configured to multiple RACH channels, general RACH channel (such as a predetermined RACH channel is matched
Multiple cells of all cells or at least region that are set in network) and one or more each cell configuration RACH channel.
There are no receive the terminal for being allocated to specific cell RACH channel can directly issue by the general RACH channel of cell
First request.The request can be by cell processing or discarding, this depends on the load of system configuration and cell.By general
RACH channel receives the cell of RACH request it is thought that triggering sends system information portion related with RACH channel configuration
Event, the subsequent request of the terminal can directly issue any of the RACH channel of each cell configuration.This is not only
It applies in the particular terminal for sending request；There is no other terminals for issuing request to can receive due to specific in cell yet
The RACH of terminal is requested and the RACH of the cell of transmission configures system information portion.
It should be noted that in this case, much benefits are obtained there is no in from using above-mentioned delay, also not from
Much benefits are obtained in power selection using subtracting.RACH is configured to the non-delay transmission of substantially total power, is sent out by single
It send, can also be multiple terminals for monitoring cell system information channel.Using subtract power selection dependent on cell estimation or
The quantity of terminal in its area of coverage of prediction such as subtracts power consumption selection in the application of non-peak time, and does not answer in time to peak
With subtracting power selection.
Directly triggering sends system information portion
According to an embodiment of the present invention, when finding itself to need particular system message part, terminal can be to cell
Issue system information portion request.This request is no but specified exclusively for specific purpose in traditional network
Request, this request are for example requested similar to RACH and are executed.In another embodiment, system information portion request allows
Which of system information portion or multi-system information part what terminal specified its request is.Responding received direct request
When, requested system information portion can be transmitted in cell, which can be by requesting terminal and other small faunas of monitoring
The terminal of system information channel receives.
In embodiments, direct request may also be considered indirect request by cell, to be sent in direct request
The additional system information part that do not specify.This may be following situations, if cell is based on experience and predicts spare system and believe
Breath part is important and/or can request below.If the request of immediate system message part does not allow multi-system information part
When requested, then this embodiment is particularly useful.
It should be noted that in this case, from the above-mentioned delay of application there is no much benefits are therefrom obtained, not having yet
Subtract from application and obtains much benefits in power selection.The non-delay hair of Request System message part or substantially total power part
It send, is sent by single, it can also be for for multiple terminals for monitoring cell system information channel.It is relied on using power selection is subtracted
In cell estimation or prediction the quantity of terminal in its area of coverage, such as in the non-peak time, application subtracts power selection, and
It is not applied in time to peak and subtracts power selection.
Fig. 5 provides the example that response directly or indirectly triggered and sent system information.Cell is configured to repeat to send letter
Number, such as signal 20 in Fig. 5, system information block M, S1 and S2 including being similar to those blocks described in Fig. 4, being followed by does not have
The time interval t2 that system information is sent.The signal 20 for repeating to send is shown in the signal 21 in Fig. 5.In addition, cell can connect
Triggering is received, such as above-mentioned directly or indirectly triggering sends requested piece to send system information block S3 to respond the triggering
S3 is received to (at least) requesting terminal.This is shown in the signal 22 of Fig. 5, schematically describes out two kinds of generation different triggerings and asks
System information block S3 is sought, the first triggering is expressed as " tr (S3) -1 ", and the second triggering is expressed as " tr (S3) -2 ".In addition, cell
Scheduled delay Td can also be waited before sending requested information after receiving triggering.This describes the signal in Fig. 5
23, after delay time Td appears in the first triggering, " tr (S3) -1 " as shown.As shown in figure 5, later, in delay time Td
Interior, three of Request System block of information S3 other triggerings are received by cell, but since cell was mapped out in delay time
System information block S3 is sent when Td expires, there is no need to comprehend these triggerings.It is at delay time Td that Fig. 5, which describes block S3,
It is sent when full.Hereafter, cell receives the triggering of another Request System block of information S3, the 5th triggering " tr as shown in the figure
(S3)-5".Cell just waits before sending requested piece of S3 (send in requested piece of S3 Fig. 5 and be not shown for the second time) pre-
Determine delay time Td.
3. sending system information using power is subtracted
The transmission power for sending broadcast singal from cell is mainly selected, thus the terminal of distalmost end, it is contemplated that path damage
Consumption, cell edge is most easy reliable reception broadcast message.According to an embodiment of the present invention, for energy conservation, cell can subtract function
Rate selection sends system information or system information portion, for example, when being based on path loss, cell estimates reception system information
Terminal than the cell edge of distalmost end apart from it is close when.For sending the power of system information portion from cell to particular terminal
The power setting used when can be communicated between cell and terminal by dedicated channel is estimated, in the dedicated letter
On road, cell mainly controls its terminal for sending power only enough dedicated channels and can receive.For passing through common signal channel
System information is sent to terminal, the higher power setting of the transmission power used than in dedicated channel may be selected in cell, this
Sample can improve system information and once send the probability for being just received acquisition in common signal channel, for example, in most cases
Under, system information or part system information are sent again without request.
If not establishing dedicated channel between cell and terminal, cell is estimated that by received from terminal
The common signal channel of RACH request sends the suitable transmission power of system information.This RACH request may include being sent out by terminal
The power indication in RACH request sent.Assessment receives the power of RACH request, and cell is according to the transmission power and cell of terminal
Reception power between difference just can determine RACH request experience road strength loss.Cell utilizes this information and uplink
The link fact substantially the same with downlink direction path loss gives terminal transmission system to estimate to be used for pass through common signal channel
The transmission power appropriate for information of uniting.
However another kind is to be based on for estimating that cell sends system information to the mode of the suitable transmission power of terminal
Power of the terminal from cell received signal.Terminal that this measurement can for example be reselected by cell and/or switching is held
Row.This information is mainly used for being supplied to network, and network may provide the relevant portion of the information to expection by different community
System information is sent to the cell of terminal, not so, terminal can directly provide metrical information to cell.
When cell sends system information or part system information to multiple terminals simultaneously, it is based on path loss, use
Subtracting power can be determined by the terminal of distalmost end in this multiple terminal.
4. sending system information or system information portion (such as only part delta) using power is subtracted
For example, terminal needs to be notified the neighbour of new cell when terminal execution is switched to a new cell from a cell
Occupy list (neighour list).Typically, each cell sends its neighbor list, however, old cell and new cell can be with
Some neighbours are shared, so that issuing whole adjacent cell lists that terminal is used as switching, it comprises duplicate messages.According to this hair
Bright embodiment, cell (old cell or new cell) only send difference or the part delta of two lists, to replace sending all
Adjacent cell list.The information that the part delta that such new cell is sent includes indicates the old cell ID11 that delete,
ID12... equal and should increased new community-ids 21, ID22... etc..The delta list of multiple terminals, which can synthesize, individually to be sent out
In sending.If being switched to the terminal of new cell from different old cells, it may occur that such case, such as since terminal is neglected
It has omited and has not instructed and had ignored in terminal adjacent cell list in the deletion of the cell id in terminal adjacent cell list
The increase of cell id instructs.
New cell had both monitored the switching rate of this cell, also monitored the switching rate of old cell, and made cell and consider or assess
For the system information sending strategy for realizing maximum resource efficiency.
This method can also be used for the other parameters much distributed by system information, if handoff parameter is arranged, usually
There is same numerical value in many cells of network.For example, if being switched to new cell from old cell, in two cells at least
Some special parameter numerical value having the same (such as switching setting), new cell may be limited in system information that send these specific
Parameter.In other words, the difference (delta) of these special parameters (parameter value) is 0 between new cell and old cell, at it
In the case of him, if being switched to the new cell from another old cell, some special parameters (such as switching setting) are different in the new cell
In its parameter in old cell, then new cell will at least send these parameters in its system information, enable the terminal to obtain
It obtains using these parameters (such as by replacing old parameter value with new parameter value or increasing new parameter) related with new cell.
5. sending system information by dedicated channel
In addition to not using common broadcast channel and sending system information to all ends that may be present in cell footprint
Except end, the mode of the 5th kind of improvement distribution system information efficiency further includes only sending to be to particular terminal by dedicated channel
Information of uniting or part system information.
The program cannot be used for all system information portions or whole system information components, such as it is not used in needs and asks
Seek or establish the particular system message part of dedicated channel.Equally, it is without in the system information for being mainly used for cell searching
Part or system information component.Then, added expense (terminal and the net of dedicated channel are established to receive system information portion
Network) it is greater than the benefit for replacing broadcast or common signal channel to obtain using dedicated channel.
However, if multiple terminals receives system information or system information portion and when the system information is sent in system information
Before it is unavailable when, it is more effective that system information distribution is carried out by broadcast or common signal channel.For example, in individual system information
Notify ten terminals can be more effective than only notice single terminal in transmission simultaneously.However for such transmission, sent using height
Power guarantees to be sent to the distalmost end target terminal after considering path loss.If only several terminals receive the letter for obtaining and sending
Breath, then the efficiency of the transmission also deposits suspection.If only single terminal receives the information for obtaining and sending, the mode of information is provided
It is that no efficiency can be sayed.If receiving the information for obtaining and sending in this way without terminal, sending energy can only be just to waste.
Moreover, the trend smaller and smaller with cell, from macrocell to Microcell, millimicro cell or picocell, mostly eventually
End becomes increasingly can not by the same system message part that broadcast or common signal channel are sent.
Therefore, according to one embodiment of the present invention, cell, which is configured with, passes through the dedicated channel from cell to particular terminal
Send at least some system information portions.Due to dedicated channel have power control, by dedicated channel send quantitative data to
Single terminal may more have high energy efficiency.Moreover, dedicated channel is mainly in the down direction from cell to terminal and from terminal
To the two-way operation of the up direction of cell, enable system information portion or system information component garbled-reception quickly and
Effectively corrected by the request that terminal is sent.In addition, being very suitable for terminal triggering cell using dedicated channel, such as
It directly triggers, send system information or part system information and only sends the system information portion of terminal actual needs and request
Or system information component, including using such as above-mentioned " difference-only " or " delta " option.
In different implementation, five kinds of province's power modes described above and not all combination is all equally applicable and/or make
With perhaps other combinations are easier.It can be with to terminal (above-mentioned selection #5) for example, sending system information using dedicated channel
It only sends delta (above-mentioned selection #4) and/or can preferably be combined using indirect and/or directly triggering (above-mentioned selection #2)
It uses.Furthermore sending (above-mentioned selection #1) with discontinuity using indirect and/or direct triggering (above-mentioned selection #2) can also be more preferable
Ground is used in combination, especially when the selected section of system information has low repeatability (such as t2 ratio t1 is much bigger).On the contrary, sharp
(above-mentioned selection #1) is sent with discontinuity to be unsuitable for tying to terminal (above-mentioned selection #5) with using dedicated channel transmission system information
It closes and uses, subtract power (above-mentioned selection #3) and be also impliedly used in dedicated channel.
System information modification and/or refreshing (effective)
The special circumstances of distribution system information include cell update (as modified) particular system message part.Modification system
Message part should distribute to previous receipt " out-of-date " system information and the still terminal those of in cell footprint.This passes through
It broadcasts the system information portion modified at least once and can efficiently perform.
System information modification can be especially right as being efficiently performed in conventional information by broadcast channel or common signal channel
In the power setting of distalmost end terminal.System information notice can also be provided by paging channel such as in umts, or be passed through
MIB is provided, which can substantially continuously monitor.
System information modification mechanism is equally useful for substituting system information valid timing device in current each terminal
The usual mechanism that (system information validity timer) is used.Embodiment according to the present invention, instead of
Final drive valid timing device, cell can be configured to the timer that maintenance refreshes.It expires when the refresh timing time of cell, it is small
Area just declares to refresh, for example, being similar to the modification of system information, and whole system informations at least once is broadcasted, so that currently
Whole terminals in the area of coverage can refresh and/or check existing system information portion and extention, and store current
The system information portion lost.
Scheme #2-4: the description of general-purpose system
Scheme #2-4 is used to describe the telecommunication system 30 in Fig. 6.As shown in fig. 6, according to one embodiment of the present invention,
Telecommunication system 30, especially cellular radio access telecommunication system, include at least 33 He of large area cell 32 and small area cell
34.User terminal 35 is also shown in Fig. 6, for clarity, only maximally related telecommunication system component is shown in FIG. 6,
Other component may it is not shown in FIG. 6, but there is also and within the scope of the invention.Here " other component " packet
Include for example additional small area cell, additional large area cell, additional terminal, even such as management entity network section
The other component of point and telecommunication system, and by each cell and telecommunication system and/or mutual return link.
Each large area cell 32, small area cell 33,34 and terminal 35 is described below.These components are more detailed
Function description discussed in the different schemes after the general description respectively.
Large area cell 32 is to reside in large area cell 32 and can be with the prior art for can at least enable terminal 35
The large area cell of middle traditional approach call terminal 35.Some embodiments according to the present invention, large area cell 32 be also used for from
Terminal 35 receives business request information, indicates in terminal 35 and supports wireless flow (such as user data switched wireless) wherein
One small area cell needs to establish data connection, and Fig. 6 is not shown.Although large area cell 32 is not primarily to carry and connect
The wireless user data for giving terminal 35 is transmitted/received, but it is also not excluded for other signalings or some numbers of users in addition to paging
It is carried according to flow by large area cell 32, such as the low bit- rate flow whole or partial for data session (phone)
(such as voice call).
Compared with small area cell 33 and 34, large area cell 32 is mainly used for covering larger geography using smaller code rate
Region.Non-occupied terminal selection large area cell is referred to as the covering of the large area cell with the geographic area resided within
Area.In appropriately sized cell, the terminal in region generally also can be properly received system information and letter from large area cell
Enable message (such as paging message).This is also applied for opposite direction, e.g., when the terminal resided in large area cell sends letter
When enabling message (such as business request information) to its resident large area cell, large area cell can be generally also properly received
The message.In the Radio Access Network area of coverage, it is assumed that at least one large area cell (the large area cell 32 in Fig. 6)
When complete work or " normally opened " state, it can carry out exchanging for signaling message with terminal.In simplest embodiment
In, it means that always fully operational state (on) of large area cell 32.In other embodiments, it is used for large area cell
Energy conservation selection can be applied in large area cell 32, it is meant that large area cell need not be always at " on " state.
Terminal 35 is the terminal operated by actual human user, as user is able to carry out voice communication or browse network
Mobile phone, but be also likely to be no human intervention (transmission/reception Email) operation smart phone or data in
Heart terminal (laptop or tablet computer), it is also possible to MTC (machine-type communication) equipment, such as smart electronics instrument, automobile
Navigation equipment or video surveillance equipment.
Terminal 35 may be at activation pattern or idle mode, in use, when in terminal 35 and small area cell 33 or 34
Between do not have user data data exchange or flow it is available when, terminal 35 is referred to as in idle mode.When terminal can with it is small
When at least one of area cell 33,34 swaps data, terminal 35 is referred to as being active.It should be noted
It is that the idle mode and activation pattern concept are suitable with the meaning of word in standard traditional network, as used herein, it
Without with standard define in it is completely the same.
Moreover, terminal 35 can support that (such as energy-saving mode or operating mode are being saved compared to operating mode terminal for energy conservation selection
Energy mode consumes less power).Since the difference of energy-saving mode and operating mode is the quantity of power of terminal consumption, and it is idle
Difference between mode and activation pattern is there is the switched wireless that user data is carried out with small area cell, and terminal can be with
It in operating mode but still is idle terminal (or the terminal in operating mode can be in activation pattern).Together
Whether sample the terminal in energy-saving mode either activation or free time, is supported and at least one small area cell dependent on terminal
Carry out the switched wireless of user data.However, most common situation is that the non-occupied terminal in energy-saving mode mode " is called out
Wake up ", promote to establish data connection at least one small area cell to execute certain function, hereafter terminal reforms into " activation "
(work) mode.Since embodiments of the present invention processing system information distribution relevant to terminal, main in following description
Will free time to terminal and activation pattern be distinguished.
The terminal 35 of idle mode is identified as at least " resident " that in large area cell 32, this can be in a conventional manner
It realizes.Such as large area cell can be with broadcast pilot (pilot signal) or beacon signal (beacon signal), eventually
End 35 can receive the pilot signal or the beacon signal, later using the information selection for including in reception signal or again
The resident large area cell of selection.In Fig. 6, is sent by large area cell 32 and used by 35 received signal of terminal from big
The solid arrow of area cell 32 to terminal 35 indicates.In embodiments, terminal 35 can notify its position area/road of network
By the change in area, in order to the paging function of large area cell 32, it is not shown in Fig. 6.
Small area cell 33 and 34 be mainly used for the data connection by establishing for that mesh and receive/send terminal
User data traffic, for example, passing through dedicated channel.However, this be not precluded other information and/or signaling by one or
Multiple small area cells are transmitted.
Each of small area cell 33 and 34 is mainly used for the lesser region that covering has high code rate, this and big face
Product cell 32 is exactly the opposite.It may be important overlapping by the region of neighbouring small area MPS process under typical deployment scenario
Area.In the area of coverage of Radio Access Network, it is believed that small area cell 33, at least one of 34 is capable of providing covering.It is small
Area cell only when need and to a certain degree when be just in fully operational state, be " normally closed " in other words.
It is assumed that small area cell at least supports a kind of energy saving form, such as energy-saving mode or standby mode.So far, implementation shown in fig. 6
It is the small area cell (being indicated in Fig. 6 with white triangle) in energy-saving mode that mode, which describes small area cell 33, and small area
Cell 34 is the small area cell (being indicated in Fig. 6 with black triangle) in activation pattern.In Fig. 6, by activation small area cell
34 is sending and indicated by 35 received signal of terminal with solid arrow, and by being sent out in the small area cell 33 of energy-saving mode
It send and is indicated by the received possible signal of terminal 35 with dotted arrow.
Each of terminal 35, large area cell 32 and small area cell 33,34 can include at least one or more use
In the communication interface sent and received information, the storage unit that (may be received for storing data in communication interface), Yi Jiyong
In handling data and may run the processor of computer program, the communication interface, processor and storage unit are suitably configured
For executing function described herein.
Since in text high energy efficiency network be different from conventional cellular systems, terminal need large area cell and small area cell into
Row communication, each embodiment according to the present invention, it is contemplated that at least three kinds of terminal 35 different configuration structures, with from these cells
A cell of these cell types is sent a signal under the cell received signal and suitable conditions of type.
The first configuration structure of terminal 35 is expressed below as " configuration structure (I) ", it is contemplated that activated terminals can prop up simultaneously
Two kinds of wireless interfaces-are held for communicating with large area cell 32 (being also likely to be other large area cells for not having display in Fig. 6)
Large area cell wireless interface and for small area cell 33,34 (be also likely to be do not have in Fig. 6 display other are small
Area cell) communication small area cell wireless interface.Those skilled in the art will appreciate that this configuration structure is compared
The terminal of only single wireless interface is related to more complicated structure.At least in some schemes, this terminal only needs big face
Product cell wireless receiver enables terminal to receive information, but the end from large area cell by large area cell wireless interface
The ability for holding need not have to send information to large area cell.In other embodiments (such as letter is exchanged with large area cell
Enable information) in, this terminal is also required to large area cell wireless transmitter, enables the terminal to send to large area cell and believe
Breath.Low bit- rate is only needed since the signaling information carried out with large area cell exchanges, safeguards large area cell wireless interface
Additional complexity, cost and energy consumption can keep very low.The terminal 35 of configuration structure (I) in activation pattern can also be with
Signal is received from large area cell 32 at any time and/or swaps data with large area cell 32.
Second of configuration structure of terminal 35 is expressed below as " configuration structure (II) ", it is contemplated that the end in activation pattern
Support two kinds of wireless interfaces: the large area cell wireless interface for large area cell and the facet for small area cell in end
Product cell wireless interface works in quick alternation mode in time division mode.In other words, this terminal is one
The section time enables large area cell wireless interface, enables small area cell wireless interface in another a period of time.Work as configuration structure
The terminal 35 of (II) is in activation pattern and carries out data exchange with small area cell 34 really, it is contemplated that small area cell is wireless
Interface is activated one section of longer time, it is further envisioned that this is in short-term with the data exchange of small area cell 34 by short interruptions
Interruption can't make a very bad impression to terminal user, such as less than the fraction of time of 1s, such as 100ms.Configuration structure (II)
Terminal also may be at activation pattern, can also carry out from small area cell wireless interface to large area cell wireless interface
Reconfigure wireless interface, then restoring before its wireless interface is configured to small area cell wireless interface, at any time but only
Can exchange data from large area cell received signal and/or with large area cell in the relatively short time (such as 100ms).
In this fashion, plesiochronous operating mode may be implemented.In embodiments, terminal reconfigures its wireless interface to big face
Product cell and small area cell be sent to terminal user data can operation be synchronized to another terminal, it is to a certain extent, small
Area cell configures its wireless interface for not sending user data out of large area cell receives data time in terminal
Give particular terminal (and/or transmission system information to the particular terminal and may give other terminals).This embodiment may make
Small area cell is avoided ineffectually to send user data to terminal, to waste small area local resource.And there is terminal and match
The case where setting its large area cell wireless interface (cannot use its small area cell wireless interface) and infrequently, terminal starts it
The total time of large area cell wireless interface only accounts for the relatively small portion time.
The third possible configuration structure of terminal 35 is expressed below as " configuration structure (III) ", it is contemplated that the terminal of activation
It alternately supports two kinds of wireless interfaces (one kind is used for large area cell, and one kind being used for small area cell), but is not that configuration such as is tied
Quickly replace (continuous) operating mode described in structure (II).For example, due to thinking It is not necessary to and/or due to executing
In do not support rapid configuration, for example, if " quick " that reconfigures wireless interface compared to limitation needs more time, such as more than 1
Second, therefore the plesiochronous operating mode as described in configuration structure (II) is not used.The terminal of configuration structure (III) is identified as
Wireless interface of its wireless interface whithin a period of time with small area cell exchanging user data can be configured.In this way, with may
Maximum rate execute the exchange of user data, without such as short interruptions in configuration structure (II).Next situation is root
According to configuration structure (III), it is small that the terminal of activation will cannot check identical large area when whether it establishes still in data session
In the area of coverage in area.Moreover, not being notified that large area is small when the terminal of activation is still in same large area cell footprint
The system information modification in area.Therefore, terminal carries out data exchange by small area cell and is reconfigured to its wireless interface
After large area cell, cell search procedure is just had to carry out, and large area cell system information must obtain.In order to complete
Such as Inbound Calls or paging message, this field skill can not lost cell search procedure and before obtaining enough system informations
Various methods known to art personnel can make up or at least alleviate this problem.
According to configuration structure (I), (II) and (III), large area cell wireless interface and small area cell wireless interface can
Think two physical radio interfaces separated or shared same physical wireless interface (such as large area with the isolated front end RF
Cell and small area cell with same frequency band work but have the case where different carrier waves).In latter situation, " small area is small
Area's wireless interface " and " large area cell wireless interface " difference are only in that in " soft " configuration of physical radio interface.It is right
In configuration structure (II) and (III), that is, single physical wireless interface or is enabled as large area cell wireless interface with regard to enough
(and small area cell wireless interface deactivate) or enable as small area cell wireless interface that (and large area cell wirelessly connects
Mouth deactivates).
Here the cell type for enabling or deactivated small area cell or large area cell wireless interface in text is (small
Area cell, large area cell) word " enabling " usually description interface can from cell received signal and support with the cell
Data (including any kind of data such as user data, signaling data, Internet control message) are carried out to exchange, and word
" deactivated " usually description interface cannot can not be supported to carry out data exchange with the cell from cell received signal.This field
Technical staff will recognize the mode there are multiple interfaces by " deactivated ".For example, stopping in an extreme embodiment
Wireless interface can be the wireless interface being fully closed, and no power is supplied to the dependent part of the electronic component of interface
Point.However, being fully opened and running even interface itself is physical in another extreme embodiment, when it does not have
Have by use, wireless interface is considered as " deactivated ".Latter implementation mode has very big benefit, due to making deactivated connect
Mouth postpones when preparation without or with very little when needing to enable again, when needing to enable again, needs to enable again
The time of interface will be very little.The various other realities for deactivating wireless interface between the two poles end embodiment
It is available for applying mode to those skilled in the art, and is also in covering scope of the present invention.
Fig. 7 is the schematic diagram of large area cell and multiple small area cell footprints in telecommunication network, according to the present invention one
A embodiment.As shown in fig. 7, large area cell 42, it is believed that be the large area cell 32 in Fig. 6, have relatively large
The area of coverage is shown with circle of dotted line 43.Each of multiple small area cells also can triangle show, can such as triangle 44
The small area cell 33,34 being considered in Fig. 6.Small area cell 44 has the different relatively small areas of coverage, with solid line circle
It has been shown that, such as circle 45.Fig. 7 also shows idle mode terminals 46 and activation pattern terminal 47, and (activation pattern terminal is expressed as infrablack
Frame terminal).Each of terminal 46 and 47 is the terminal 35 in Fig. 6, is located in one or more areas of coverage 45.Large area
Idle mode terminals 46 in the area of coverage 43 of cell 42 are referred to as residing in cell 42.Having for white is shown as to cover
The small area cell 44 of cover region 45 is used to describe the small area cell in energy-saving mode, and the shade that appears dimmed has
The small area cell 44 of the area of coverage 45 is used to describe the small area cell in activation pattern, can activate with one or more
Terminal 47 carries out data session.Certainly, in other embodiments, the area of coverage 43 and 45 is not necessarily circle, is also not necessarily
Around the omnidirectional sector of base station (cell) position.
Back to Fig. 6, the typical example of the behavior of terminal 35 is such as according to an embodiment of the present invention, in high energy efficiency network
It is lower described.When terminal 35 is not needed with network exchange user data (such as non-occupied terminal), it will reside in large area cell 32
In, it is resident in the cell with same mode with non-occupied terminal in traditional network.When terminal 35 needs and network exchange user
When data (such as needing to enter activation pattern), data session is established with the suitable small area cell in network, in Fig. 6
Shown in small area cell 34.For the sake of highest energy efficiency, suitable small area cell is previously possible (such as can be for deactivation
Disconnect or enter power save mode), it is necessary to it is activated (as waken up) to support data session.When Data Data session establishment,
Terminal can be with, such as by dedicated channel, by/carry out user data (may also have signaling) with small area cell 34 and exchange.
When and activated terminals 35 no longer need further with network exchange user data when, data session terminates.It is risen for highest energy efficiency
See, if small area cell has no or only seldom flow, (it is small to another small area that the case where the latter appears in the remaining session of transfer
Behind area), then small area cell 34 can not be activated (such as can be to disconnect or enter power save mode).Terminal 35 reenters
Idle mode resides in large area cell, which can be the identical large area being resident before establishing data session
Cell (such as large area cell 32), if terminal is different large area when being moved in another large area cell footprint
Cell.
Scheme #2: large area cell distributes large area cell system information in high energy efficiency network, and the distribution of small area cell is small
Area cell system information
Shown in Fig. 6 and 7 and be described above, originally terminal 35 is assumed activated terminals, for by terminal 35 with
The data connection established between small area cell 34 swaps data with small area cell 34 such as by dedicated channel.Side
The embodiment of case #2 solve the problems, such as it is as follows, terminal 35 obtain include system information at least related with small area cell 34 and
The small area cell system information of large area cell system information related with large area cell 32, it is also possible to including with network
Other small area cells and other related system informations of large area cell, the system information are related to terminal 35 in 30.
The embodiment of the program is based on the idea that its large area cell system information of the transmission of large area cell 32, small
Area cell 34 sends its small area cell system information, the small area cell wireless interface of the terminal 35 of configuration structure (II)
And large area cell wireless interface can replace enabling in time division multiplexing, as shown in Figure 8.Large area cell and facet
Product cell can send their own system information, as shown in figure 9, small area cell 34 is by being expressed as grey triangle
Broadcast channel 51 and/or the dedicated channel 52,53 by being expressed as four-headed arrow send its system information to each activated terminals
35, large area cell 32 sends its system information by being expressed as the broadcast channel 54 of broken line triangle.When terminal 35 is in sky
When not busy mode, terminal 35 is used to receive its by the large area cell wireless interface enabled for such non-occupied terminal resident big
The large area cell system information that area cell 32 is sent.Small area cell wireless interface is not enabled.Swash when terminal 35 is in
When mode living, data exchange, in a very long time, terminal 35 are carried out by the data connection and small area cell 34 of foundation
Small area cell wireless interface enable, and large area cell wireless interface deactivate.At this point, terminal 35 can be small with small area
Area 34 carries out user data exchange, other signals including system information, and terminal can also be received from small area cell 34
35 can also receive the signal including system information from other small area cells of network 30.In remaining fewer parts time, swash
The large area cell wireless interface of terminal 35 living enables, and small area cell wireless interface deactivates.At this point, terminal 35 can be from big
Area cell 32, which receives, to be included the signal of system information and supports signaling connection, terminal possibly by large area cell 32
35 can also receive the signal including system information from other large area cells of network 30.In this mode, in activation mould
Formula and it can temporarily interrupt or suspend and facet by the terminal that small area cell wireless interface exchanges data with small area cell
User data exchange between product cell, and it is being sent to it when terminal expectation large area cell or multiple large area cells
System information when one or more specific times, enable large area cell wireless interface so that terminal can receive one
The large area cell system information that a or multiple large area cells are sent.When small area cell wireless interface enables, in this way
Terminal can from one or more small area cells receive small area cell system information.
According to the tool of terminal 35 of above-mentioned configuration structure (I) configuration, there are two the wireless interfaces worked at the same time, when it is with " simultaneously
When row " mode works, the various methods in scheme #1 can be used.The embodiment of scheme #1 is applicable to through big face
Product cell and small area cell distribution system information, the system information pass through corresponding mutually independent wireless interface by terminal
35 receive.
Figure 10 is that the acquisition system related with one or more small area cells provided according to embodiment of the present invention is believed
The flow chart of breath and the method and step of system information related with one or more large area cells.Although method steps
Fig. 6 is described, and those skilled in the art will recognize that any system for executing this method step in any order all exists
In the scope of the present invention.
This method starts from step 61, and terminal 35 is in the small area cell wireless interface of activation pattern and terminal 35
It enables.Terminal 35 is at least received and small area cell 34 by the small area cell wireless interface of terminal from small area cell 34
Related part facets product cell system information (certainly, terminal 35 can also exchange data with small area cell 34).Terminal 35
Also small area cell system information is received from other small area cells relevant to terminal 35.In step 62, terminal 35 is one
Large area cell wireless interface is enabled during a or multiple LA times with wireless by the large area cell enabled in step 63
The large area cell system information of interface large area cell 32.Have two according to the terminal 35 of configuration structure (II) configuration
A quick alternately wireless interface, it is preferable that large area cell 32 only within a bit of time, such as 100ms (or less), is sent
Its system information.It is another preferably, large area cell sends its system information or at least at the scheduled time within a predetermined period of time
Start to send its system information in time, such as the large area cell system information of interior repetitive cycling 100ms per second is sent.It sends big
The mode of area cell system information otherwise by large area cell 32 itself be arranged or by such as network management or OAM (behaviour
Make, management and maintenance) some other network entities setting of entity and/or synchronization entity.When occurrence of large-area cell system is believed
When the instruction that breath is sent is supplied to terminal 35, the terminal of activation can reconfigure its wireless interface and give large area cell, to connect
Large area cell system information is received, as only before the expectation of large area cell system information starts transmission, optionally, also executed
Other operations relevant to large area cell, for example assessment terminal 35 whether still in the area of coverage of large area cell 32 and into
Capable signal strength measurement.When these completion when, terminal 35 its wireless interface can be re-allocated to small area cell (
It continues through small area cell 34 and exchanges such as user data).
In optional step 64, it is at least partially based on received small area cell system information and/or received large area is small
Sound zone system information, the configurable one or more settings of terminal 35.In embodiments, terminal 35 can be used for storing received small
At least part of area cell and large area cell system information, for future use.In this respect it should be noted that by small
Area cell 34 send small area cell system information be not limited in it is only related with small area cell 34, can also be with network
Middle one or more activation or other inactive small area cells are related, such as neighbouring small area cell, facet shown in fig. 6
Product cell 33.It is related that terminal 35 also receives and stores the small area cell 34 serviced with another small area cell rather than only
Small area cell system information has benefit, such as in the case where being switched to such as neighbouring small area cell of difference in this way.This
Sample, system information or its with the new main relevant portion of small area cell before the handover is performed, and it is non-switching after can quilt
Terminal obtains.Can only be obtained after executing switching compared to system information main in usual method, this " in advance " obtain with it is another
The related system information of the cell of one non-serving is convenient for being more quickly completed switching.Quick execution is outstanding in the case where switching in below
Its is beneficial, and since cell is smaller, mainly small area cell is smaller and terminal high maneuverability, in specific cell, as small area is small
The residence time is relatively short in area.This " in advance " obtains the small area cell serviced with another small area cell rather than only
Related system information is in high energy efficiency network and very useful, in high energy efficiency network, the target small area of switching
Cell needs to reactivate still in unactivated state (the small area cell 33 in such as Fig. 6), and before complete work.
Within the time reactivated, small area cell can also not exclusively send its small area cell system information, so that terminal 35
The system information that the specific small area cell of storage can be efficiently used switches over to configure itself.Equally, although above-mentioned advantage
Seldom be applied to large area cell, the system information that large area cell 32 is sent be also not necessarily limited to it is only related with large area cell 32,
But can also be related (being not shown in Fig. 9) with other large area cells one or more in network, such as neighbouring large area cell.
The similar benefit of storing system information is suitable for the terminal of activation, saves large area cell system information, when user data exchanges
Idle mode is returned to when completion.For example, when terminal 35 is idle again, terminal can application memory large area cell system
Information configures its setting.In all cases, preferably terminal can quickly check specific cell (the small area cell of storage
Or large area cell) system information whether still effectively.This can be realized in a conventional manner, such as pass through system information version
Number.For broadcast system information, this version number is fairly frequently broadcasted, the system for being provided by dedicated channel
Information, terminal send the cell that is indicated to of the system information version number of storage, and cell or use indicate that the version is still effective
Confirmation or responded using latest edition number, and provide the system information portion of version number modification indicated according to terminal
Newest (effective) part divided.How Configuration network 30 enables terminal to obtain small area cell and large area cell system information
It is here as " very easy configuration ", " compared with flexible configuration " and " most flexible configuration ", detailed below these with various ways
Thin description.
Very easy configuration
In very easy configuration, small area cell such as small area cell 34 is for sending user data to activated terminals
Each of 35, small area cell be only used in in the predetermined amount of time unduplicated time, large area cell, as large area is small
Area 32, send large area cell system information, such as it is per second in 100ms large area cell 32 send large area cell system
Information, and it is per second in 900ms small area cell 34 send user data.In other words, for sending the small fauna of large area
The predetermined time of system information, which is left, allows terminal to receive acquisition large area cell system information without allowing to pass through small area
Cell receives user data, thus the 90% of the case where sending user data compared to 100% time of small area cell, it reduces
The achievable throughput of small area community user data.The time that user data can be transmitted in small area cell is existing in this example
It is designated as " first time ", and the predetermined time that large area cell system information can be transmitted in large area cell is appointed as " second
Time ".Although first and second time is configured to not overlap, since additional blank time to be used for, such as allow to complete
Reconfigure terminal wireless interface and allow two types cell timing it is inaccurate, they be also not necessarily adjacent time (
There can be gap between these times).
Since the more than one large area that small area cell can have the area of coverage for the small area cell that partly overlaps is small
Area, so the small area cell of first time will need to consider the second time of each related large area cell.To avoid into one
Step, which reduces small area cell, can efficiently use the time quantum (being further reduced achievable throughput) of its first time, most
It is that large area cell is mutually in step its second time well, so that the appearance of its second time is overlapped as far as possible, such as substantially
Simultaneously.For above-mentioned example, the second time of middle 100ms per second is substantially all big faces relevant to small area cell
Product cell uses simultaneously.
In this very easy configuration, how sending system information for small area cell, there are two types of selections.The first choosing
In selecting, small area cell can send small area cell system within the second time (that is, when time of no user data transmission)
Information, it is also possible to gap between the first and second times but not within first time.In this selection, small area is small
Sound zone system information is sent with relatively high data rate, due within these times, small area cell without the need for
Any transmission resource of user data, this large amount of small area cell system information can be sent within the relatively short time.The
In two kinds of selections, small area cell can send small area cell system information at any time, be included at the first time, the
Small area cell system information is sent in two times and/or gap.This, in the further embodiments of second of selection,
In the second time and may be in gap, such as the rate in the first opposite selection, the transmission of small area cell system information
Rate may be set to relatively high rate.For two kinds select, small area cell do not limit its from terminal receive user data when
Between；Small area cell can choose whether any time reception for sending user data to small area cell in terminal.It should be noted
It is, when system configuration is usually to give in the presence of (may make a reservation for) time slot allocation from cell in the work of TDD (time division multiplexing) mode
Downlink to terminal is sent and other time slot allocations are sent to the uplink from terminal to cell, and certainly, above-mentioned configuration is necessary
Downlink is respectively allocated to suitable for TDD time slot and uplink is sent.
Large area cell can be used for only that (not at the first time, also no longer gap) to send large area small within the second time
Sound zone system information is to activated terminals.In a kind of selection, large area cell can also send some large area except the second time
Cell system information, for example, being not used in the system information and/or (part) (such as low bit- rate, letter in different formats of non-occupied terminal
Single coding etc.) the same system information that sends to be preferably to match non-occupied terminal.By the data exchange of large area cell, such as
It supports dedicated signaling connection, and/or can be executed at any time by the user data exchange of large area cell (certainly, in TDD feelings
Under condition, above-mentioned assigned time slot need to be considered).
In the network that multiple large area cells send its system information, in one embodiment, different large area are small
Area, which can synchronize, sends its system information, substantially simultaneously, such as a certain moment within the 100ms time.This side of execution
The advantages of formula is that small area cell is not needed to distinguish between terminal and/or distinguished between the large area cell of terminal contact, facet
Product cell need to only plan the free sending time of single user's data in 100ms.The shortcomings that this executive mode is in 100ms
Interior terminal only may obtain system information from the reception of single large area cell.In another embodiment, different large area are small
Area can be used for synchronous its system information of transmission, such as within the time of 100ms substantially continuously.In such embodiment party
In formula, terminal, which has to receive in the continuous 100ms time slot of correspondence from multiple (for example, two) large area cells, is
The advantages of information of uniting, the shortcomings that this executive mode are to further reduce the achievable small area cell of user data to handle up
Rate, in possible situation, each terminal (or at least each pair of large area cell) need to the free sending time of small area cell into
Professional etiquette is drawn.
Within first time, the activated terminals for not needing any large area cell system information can keep wireless interface
Configuration sends user data in small area cell at any time, and user data can be received within first time, can also be second
(may also be in gap) receives small area cell system information in time.The activation for receiving large area cell system information is whole
End can continue to send and/or receive user data within first time.Then, in first time terminal to be arrived, terminal will
Its wireless interface is reconfigured to large area cell (being easy to implement this using time slot), receives large area cell system letter
Breath (utilizes time slot can be with again earlier than the second end time, reconfiguring its wireless interface to small area cell
It is easy to implement this).Hereafter, terminal is sent and/or is received again user by small area cell within next first time
Data.
In this configuration, as described, especially the first selection in small area cell system information and
Large area cell system information, sending system information by small area cell and large area cell is collaboration, at second
In substantially simultaneously, and small area cell system information transmission can occur in the gap between first and second time.
Compared with flexible configuration
In this configuration, not at the first time and the second time scheduled repetitive sequence.
Small area cell transmission user data wants the one small area cell sending number of users to particular terminal or continuously
There is interruption or pause according to middle, in down user data transmission, the pause that small area community user data are sent is by specific end
End in advance made a reservation for small area cell, define, it is specified and/or order.In this way, when terminal needs small area community user
When the free sending time of data, terminal is activated full control, such as receives system information from one or more large area cells,
The signal level of one or more large area cells is evaluated and tested, and/or contact (for example, and exchange signalling information) one
Or multiple large area cells.This also allows particular terminal and specific opportunity (occasion-specific) to measure small area cell
The size of the free sending time of user data.Such as the terminal for slowly reconfiguring its wireless interface is executed than executing quick reconfiguration
Another terminal for setting its wireless interface can require the longer free sending time of small area cell, or only need particular system
The terminal of message part than exemplary 100ms, and than 100ms it is inscribed harvest complete system information another terminal more
The short free sending time of small area cell, the terminal is near particular system message part expectation sending time.
This compared in flexible configuration, when small area cell outage, it sends the down user data of particular terminal, small
Area cell can continue to send user data to other terminals that do not interrupt clearly.
For the small area cell system information sent by small area cell, the whole options described according to former configuration
It is all unrestricted choice without preferential.For example, small area cell can be configured to send out in a manner of tradition, nearly singular integral, appropriate code rate
Send small area cell system information.In another example, small area cell can be configured to send it in short pulse with high code rate
Small area cell system information.
Small area cell is configurable to send user data at any time, and terminal chooses whether to send user data to facet
Product cell (certainly, in TDD, needs to consider above-mentioned assigned time slot).
Large area cell can send its large area cell system information in short pulse, can also be advantageously according to big face
Product cell or such as other of network management entity or synchronization entity network node are scheduled and by terminal monitoring large area cell
And the predetermined time for being able to know that or detecting arranges (as periodically).It is above-mentioned optional " very simple corresponding to large area cell
Configuration " is in this configuration that large area cell can also send some large area except the second time there are also a kind of selection
Cell system information.
The data exchange carried out by large area cell, such as in order to support dedicated signaling to connect and/or pass through large area
The exchange for some user data that cell carries out can be executed at any time (when certainly, considering above-mentioned assigned in TDD
Gap).
The activated terminals for not needing any large area cell system information can keep its wireless interface to be configured to small area
Cell can send user data at any time, receive user data at any time and can receive small area cell system information at any time
(at least when small area cell system information is sent).Need the activated terminals of large area cell system information first to end
End has the small area cell of data connection to provide when small area cell should suspend (interruption) its user to particular terminal
The instruction that the downlink of data is sent.For this purpose, terminal provides instruction, such as with specific initial time and terminate the time
Single interruption, the single multiple interruptions interrupted or arranged according to the period with specific initial time and interruption elapsed-time standards.
Small area cell downlink user data sends the time of pause (interruptions) and when second described in " very easy configuration "
Between compare, difference is at this compared in flexible configuration, and this time is is limited by terminal or terminal is specified, and can be from
Do not occur, can occur primary or repeated and (different time may be undergone).After offer is indicated to small area cell, terminal after
Supervention send and/or receives user data and starts until the break period.In the time started or later, terminal reconfigures it and wirelessly connects
Mouth arrives large area cell.The time done so assumes to know and can consider when specified downlink is used
The user data interruption time started gives small area cell.The terminal of enabled large area cell wireless interface can receive large area
Cell system information or part at least relevant to the information, and when earlier than the interruption ends time, by its wireless interface weight
Newly match and puts back into small area cell.Similar to time of the terminal wireless interface to large area cell is reconfigured, reconfigure terminal without
The time of line interface to small area cell also assumes that terminal can be known, also assumes that that takes into account when specified downlink is used
The user data the interruption ends time gives small area cell.Then, terminal can be retransmitted and/or be connect after the terminal end time
Receive user data.
According to the description of front, what this configuration did not needed to be sent by small area cell and large area cell system information
Cooperation.However, it is necessary to monitor large area cell system information and small area cannot be listened within that time (the second time)
The terminal of cell system information will lose whole small area cell system informations repeatedly and constantly.If the small fauna of small area
Unite information with the consistent shorter pulse times of large area cell system information sending time in send energy this thing happens.
Even if small area cell system information is substantially to continuously transmit, terminal can also lose the small fauna of small area repeatedly and always
The specific part for information of uniting.To avoid such case, it is preferable that small area cell and large area cell can send them simultaneously
Respective system information, so that the repetitive rate that small area cell system information is sent is different from large area cell system information
Repetitive rate.Using this synchronization, the small area cell system information part that terminal may lose will no longer be repeatedly and consistently
The same section of small area cell system information, but moved along small area cell system information.This may be implemented, for example,
When by the repetition time of selection small area cell system information or shorter or longer than the repetition of large area cell system information
Between, the time being shorter or longer than correspond to issue activated terminals large area cell system information send it is experienced (can
Can be short) time (such as the second time of experience).Optinal plan is also possible, for example, terminal was skipped for the second time, is kept
Its wireless interface is configured to small area cell to receive acquisition small area cell system information or terminal and for example to pass through use
It is for example dedicated by being exchanged for user data again in the dedicated channel direct request small area cell of user data exchange
Channel provides specific small area cell system information to terminal, in this case, using scheme #1 selection #2 and #5 especially
It is useful.
In this configuration, since small area cell has at least partly by multiple large area MPS process area overlappings
The area of coverage is substantially simultaneously sent out so the large area cell without closing on is mutually in step the transmission of its large area cell system information
Raw.Its large area cell system is sent corresponding to large area cell (such as terminal wishes the specific large area cell monitored)
The time of information, terminal can indicate and/or order small area cell downlink user data sends and interrupts, however, in embodiment party
In formula, the large area cell system information transmission being synchronized still is able to execute.Since the different break periods is without being assigned to
Different large area cells, this execution are advantageous for terminal.
Most flexible configuration
This configuration is interrupted (simultaneously such as pause mainly with respect to above-mentioned " relatively flexibly " configuration, cell down user data
Restore down user data to send) beginning and to terminate the terminal that is activated at any time specified.
In one embodiment, terminal send no specified time point or have the specified application of order in the future it is specific when
Between the order put to suspend the transmission of small area cell downlink user data.The small area cell for receiving order can not will have the time
The command interpretation of instruction is at current time, as immediately or as far as possible early.For example, receive pause immediately in this way order after, it is small
Area cell can be used for completing then stopping the further transmission to terminal such as currently transmitted block or user data frame.It connects
It receives after recovering immediately order, small area cell can be used for recovering immediately the transmission to terminal.
In another embodiment, terminal can send order to suspend small area cell downlink user in specific time
Data are sent.The small area cell for receiving specified time pause command can be used for explaining that the order is small area cell to end
The transmission at end must at the appointed time stop the latest.Specified time restore order indicate small area cell can earliest from it is specified when
Between to terminal restore send.
Based on specified pause and recovery time can be sent to small area cell downlink at any time, provided additionally for terminal
Flexibility allows small area cell to be sent in when terminal has executed large area cell operation and restores as early as possible without having to wait for
Large area cell system information sending time terminates.Those skilled in the art can realize immediately how to adapt to foregoing description
In in more flexible configuration so that small area cell downlink user data send beginning can be specified at any time with termination, because
This, for brevity, this will not be repeated here.
Scheme #3: large area cell distribution large area cell system information and small area cell system letter in high energy efficiency network
Breath
Content as shown in Figures 6 and 7 and foregoing description, firstly, terminal 35 is assumed to not hand over by small area cell 33,34
It uses user data instead and resides in the non-occupied terminal in large area cell 32.Terminal 35 can also activate, it by terminal 35 with it is small
The data connection established between area cell 34, such as by carrying out user data friendship with dedicated channel and small area cell 34
It changes.The embodiment of scheme #3 solves the problems, such as that terminal 35 obtains small area cell system information, the small area cell system
Information includes system information at least related with small area cell 34 and large area cell system related with large area cell 32
Information and possible related to other the relevant small area cells of terminal 35 and other large area cells in the network 30
System information.
The embodiment of the program is based on following thought, large area cell, as large area cell 32 can be used for sending big face
Accumulate the small area of cell system information and at least some small area cells relevant to terminal possibility in large area cell footprint
Cell system information.Scheme #3 can be divided into two main embodiments, be shown in Figure 11 and 12.In the first embodiment,
Large area cell 32 sends all system informations, in this second embodiment, large area to terminal using broadcast/common signal channel
Cell 32 sends at least some system informations, these embodiments to each terminal using one or more Dedicated Signaling Channels
It to be described in detail below.
Use broadcast/common signal channel
Figure 11 is that large area cell system information and small is provided the terminal with according to the large area cell of embodiment of the present invention
The schematic diagram of area cell system information.Embodiment as shown in figure 11, large area cell 32 send it by broadcast channel 71
The system information of system information and one or more small area cells relevant to terminal 35.Non-occupied terminal only needs at least big
Its large area cell wireless interface is enabled during area cell system information broadcast channel is monitored.This can make non-occupied terminal
Obtain all system informations of large area cell and small area cell related to possibility all in large area cell footprint.It is empty
The system information and holding that not busy terminal storage obtains update.When establishing data session with specific small area cell, non-occupied terminal
Also using the system information of the specific small area cell of storage.This operation of terminal can be configured according to above-mentioned terminal and be tied
Structure (I), (II) and (III) is supported.
By the dedicated data channel 72,73 being shown in Figure 11 and 74 with 34 exchanging user data of small area cell
Each activated terminals can also be used to monitor the system information that large area cell 32 is broadcasted.Terminal 35 can be used for monitoring by large area
Cell 32 or periodicity receive triggering and the large area cell and small area cell system information of broadcast.
For the embodiment of scheme #3 described in Figure 11, it is contemplated that two kinds of terminal configuration structures.
Using above-mentioned terminal configuration structure (I), small area cell wireless interface and small area cell is can be used in activated terminals
34 continuously and/or when user data being needed to exchange can swap user data.Terminal temporarily enables large area cell and wirelessly connects
Mouthful one relatively short time, such as periodicity or when receiving triggering, to monitor the big face broadcasted by large area cell 32
Product cell system information, broadcast channel 71 contain large area cell and small area cell system information.This configuration structure
Advantage is can to continue to carry out un-interrupted by the user data exchange of small area cell.However, terminal needs at least in short-term
Two kinds of wireless interfaces are supported in time simultaneously, this will cause higher hardware complexity.
Using above-mentioned terminal configuration structure (II), activated terminals can be replaced between a wireless interface.Terminal is longer
Its small area cell wireless interface is enabled in time to support to exchange with the user data of small area cell 34.And large area
Cell wireless interface deactivates.Believe to monitor containing the large area cell system of large area cell and small area cell system information
Broadcast channel 71 is ceased, terminal only enables large area cell wireless interface within a short period of time.And small area cell wireless interface
It deactivates.
In broadcast channel 71, the small area cell system information sent by large area cell 32 can be with each facet
Product cell or every group of small area cell are grouped for unit.Higher energy efficiency system information is distributed, large area cell 32
Have when needed, such as sends small area cell system information just for small area cell that is activation or will being activated.To add
The fast small area cell by activation not yet establishes data session, and it is small that large area cell 32 can be used for sending all small areas
The system information in area such as includes the instruction about small area cell state of activation.In this fashion, in idle mode
Terminal and terminal in activation pattern can just obtain, store only by monitoring large area Cell Broadcast Channel
And keep updating the system information of each large area cell and small area cell.Since system information can for terminal
It obtains, or even before terminal needs the information, makes the small area cell Speed-up Establishment by activation in this way
The process of data session and from a small area cell to the handover process of another small area cell.
Cell for the available system information of further expansion terminal, 32 distribution system information of large area cell configures
Can with further expansion to system information related with neighbouring large area cell and/or with 32 area of coverage of large area cell it
The outer but close related system information of small area cell.
When the relevant portion of system information is modified, to be absorbed in activated terminals by small area cell 34
User data exchange, to Figure 11 illustrated embodiment a further improvement is that provide trigger signal or triggering message to activation
Terminal.This trigger signal or signal message can be sent to terminal by network or by one in network by dedicated connect
A or multiple small area Cell Broadcast CBs.Triggering also optionally points out that modification is related to which or which cell.Thus
The terminal for receiving this trigger signal or message can be notified the modification and relevant terminal of some system information portions
Obtain the system information of modification.
In embodiments, certain events are construed to trigger by activated terminals, for example, when terminal is due to movement, execute from
Old small area cell needs to obtain, updates or check the system information of new small area cell to the switching of new small area cell.
Triggering is provided and alleviates activated terminals regularly to activated terminals, being such as periodically executed monitoring large area Cell Broadcast Channel can
The modification of energy, this is particularly advantageous terminal configuration structure (II).
Although not being most efficiency compared to other schemes, embodiment shown in Figure 11 also gives terminal and can obtain greatly
The system information of all small area cells and the advantages of can be stored the information for future use in area cell footprint.
In this way, compared to when session establishment or be switched to small area cell complete when terminal could obtain most of small area cell system
The case where information, establishes data session in non-occupied terminal or activated terminals is executed from a small area cell to another facet
In the case where product cell switching, terminal can be arranged using small area cell correlation more quickly.The embodiment also makes small area
Cell system information distributes to non-occupied terminal in advance, such as terminal is established before data session, even if in the neighbours of non-occupied terminal
In do not have small area cell activation.
Use dedicated channel
The optinal plan of above embodiment, to avoid consumption large area cell 32 from broadcasting system related with cell
Dedicated signaling method can be used in the broadcast resource of information.This is described in Figure 12, schematically describes large area cell 32 and passes through
Broadcast channel 81 sends the system information of its system information and one or more small area cells relevant to non-occupied terminal 35a,
Small area cell system information and/or large area cell system information and its modification are provided by Dedicated Signaling Channel 82 simultaneously
Give activated terminals 35b.
In this scenario, optionally, when session establishment includes being connected by the dedicated signaling of large area cell 32, in meeting
When words are established, large area cell 32 can be connected 82 by dedicated signaling and provide and be chosen as supporting the small area cell phase of session
All pertinent system informations closed.
It is triggered by event, such as works as terminal, such as since mobile execute from old small area cell to new small area cell switches
Or network modifies to certain system informations, such as reconfigures the system parameter of small area cell and/or large area cell
When, it can be used for sending the system information modified by the Dedicated Signaling Channel 82 of large area cell 32 and give activated terminals 35b.
For this activated terminals, it is contemplated that two kinds of terminal configuration structures.
Using above-mentioned terminal configuration structure (I), activated terminals can be used small area cell wireless interface and small area small
Can be continuous and/or swap user data when user data being needed to exchange in area 34.To support through the dedicated of large area cell
Signaling connection 82, for receive relevant to large area cell 32 large area cell system information or with any small area cell 34
Any modification (update) of related small area cell system information, terminal 35b is interim, such as periodicity or receives triggering
And enable the one relatively short time of large area cell wireless interface.The advantages of this configuration structure is by small area cell
34 user data exchange can continue to carry out un-interrupted.However, terminal 35b needs to support simultaneously at least short time
Two kinds of wireless interfaces, this will cause higher hardware complexity.
Using above-mentioned terminal configuration structure (II), activated terminals can be replaced between a wireless interface.Terminal is longer
It enables its small area cell wireless interface in time only to support to exchange with the user data of small area cell 34, is simultaneously
It receives large area cell system information related with large area cell 32 or small area related with any small area cell 34 is small
Any modification (update) of sound zone system information, terminal only enable large area cell wireless interface within a short period of time.
Due to using dedicated signaling to connect, embodiment shown in Figure 12 is compared to the expectation tool of embodiment shown in Figure 11
There is bigger efficiency.In addition, the embodiment also has the advantage that compared to other embodiments for being related to the distribution of system information efficiency.
For example, it is contemplated that there is failure to different small area cells and in each handoff procedure to the necessary frequent switching of mobile terminal
Possibility may lose whole connections between network and terminal.Under frequent and error-prone switch instances, with large area
It is very attractive, signaling connection in this way that cell 32, which has stable and constant signaling connection, the switching of failure
It can be corrected quickly.Modified small area cell system information is provided the terminal with by above-mentioned large area cell signaling connection
Part is also meaningful.All additional savings are also related to dedicated connection application, such as apply the dedicated letter of power control
A possibility that enabling connection and providing the terminal with only system information relevant to small area cell.In view of path loss, compared with
Between terminal and small area cell, there is relatively large distance between terminal and large area cell, typically but be not always, compared with
Low-energy-efficiency may be more important than the stability and reliability of large area cell signaling connection.
Scheme #4: efficiency network small areas cell distributes large area cell system information and small area cell system information
Similar to scheme #3, in the present solution, content shown in Fig. 6 and 7 and foregoing description, terminal 35 assume first that as not
By 33,34 exchanging user data of small area cell and reside in the non-occupied terminal in large area cell 32.Terminal 35 can also be with
Activation, it passes through the data connection established between terminal 35 and small area cell 34, such as small with small area by dedicated channel
Area 34 carries out user data exchange.The embodiment of scheme #4 solves terminal 35 and obtains small area cell system information, this is small
Area cell system information includes system information at least related with small area cell 34 and related with large area cell 32 big
Other small area cells relevant to terminal 35 and other large area in area cell system information and possible network 30
The pertinent system information of cell.
The embodiment of the program is based on following thought, small area cell, as small area cell 34 can be used for sending facet
Accumulate the large area of cell system information and some large area cells at least relevant to terminal possibility in small area cell footprint
Cell system information.Scheme #4 can be divided into two main embodiments, be shown in Figure 13 and 14.In the first embodiment,
Small area cell 34 sends all system informations to terminal using broadcast/common signal channel.In this second embodiment, small area
Cell 34 sends at least some system informations, these realities to each terminal using the Dedicated Signaling Channel connecting with activated terminals
Applying will be described in detail below mode.
Use broadcast/common signal channel
Figure 13 is to provide the terminal with small area cell system information and large area cell according to one embodiment of the present invention
The schematic diagram of the small area cell of system information.Embodiment as shown in figure 13, small area cell 34 pass through broadcast channel 91
(grey triangles are shown as in Figure 13) sends its system information and one or more large area cells relevant to activated terminals 35b
System information.Optionally, small area cell 34 also includes entering the system related with neighbouring small area cell of broadcast channel 91
System information.As shown in figure 13, small area cell 34 also establishes data connection 92,93 and 94 (as led to each activated terminals 35b
Cross dedicated channel).
In the case where the large area cell system information of large area cell has modification, large area cell is by the face Xiang Yu great
The relevant all small area cell notice modifications in product cell footprint, are shown in the arrow 95 of Figure 13.This notice can be such as
It is provided by the access network interface of the X2 similar to LTE.The small area cell 34 of this notice is received then by broadcast letter
The notice of the large area cell system information of the notice and modification of the system information of the broadcast modification of road 91.In small area cell
In the case that 34 also broadcast the system information of another (neighbouring) small area cell, repairing for neighbouring small area cell is applied equally to
The system information changed is small if other small area cells are configured to notify related (neighbours) small area cell (being not shown in Figure 13)
Area cell 34 then will by broadcast channel 91 broadcast modification system information notice and with another small area it is small
The notice of the small area cell system information of the relevant modification in area.
Receive the broadcast channel 91 that the activated terminals 35b of the system information notice of modification passes through service small area cell 34
Obtain the system information of modification related with large area cell and/or related with another small area cell.
Since the distance between large area cell and terminal are so short that small area cell compared with the distance between terminal is usual
More, from the point of view of efficiency angle, Figure 13 illustrated embodiment has very big attraction.However, to support non-occupied terminal 35a, at least
Some large area cell system informations, such as large area subzone network, large area cell ID and large area Cell Broadcast Channel
Relevant various parameters, large area neighbors cell list etc. need to be sent by large area cell 32 oneself, as shown
Broadcast channel 96.In this way, the gain of efficiency is mainly used in only large area cell system information portion relevant to activated terminals
Point, such as handoff parameter.
In embodiments, large area cell system information part relevant to non-occupied terminal can also be small by small area
Area 34 is sent, this provides an advantage, and activated terminals 35b can use the available information energy after terminating data session
It is enough quickly to carry out cell searching and/or cell reselection.However, also there is the weight of large area cell system information in the embodiment
Recurrence is sent, and efficiency gain how much can be reduced.
At least broadcast some large area cell systems of one or more large area cells of shared some areas of coverage
The small area cell of information has the advantages that another, provides related to related large area cell information to activated terminals, without
Terminal is wanted to use its large area cell wireless interface.For example, when small area cell 34 broadcasts some system informations to single big face
When product cell, the activated terminals of the system information are received it may be concluded that it will almost really when it terminates data session
Surely it finds oneself to reside in again in the specific large area cell.
In another example, when small area cell 34 is the small area cell that activated terminals are switched to, small area cell
34 broadcast some system letters relevant to two large area cells (the large area cell and " new " large area cell that have contacted)
Breath, then, terminal it could be assumed that, when it terminates data session, it almost will definitely find that it will be only two
Again resident selection is made in a leading candidate.For above-mentioned terminal configuration structure (I) or (II), two large area are small
The large area cell system information in area, which sends to execute with triggering terminal, assesses the specific large area cell.Since small area is small
Area 34 provides the more detailed information about most related neighbouring large area cell, in the large area neighbors cell list of terminal
In information even can neglect.Although providing those from the perspective of distribution large area cell system information narrow sense
All system informations of (may be multiple) large area cell not may most have efficiency, but tie for configuring with terminal
The terminal of structure (II) or meaningful, can be reduced, large area cell mainly under low bit- rate significantly due to doing so
Wireless interface needs the time enabled.For above-mentioned terminal configuration structure (III), terminal need to only obtain it and be used to terminate data
The large area cell system information of the small area cell distribution of session.By the big face for giving small area cell distribution system information
Product number of cells may be limited, and such as one, two or three large area cell, accelerate the cell searching of terminal in this way
And/or cell reselection procedure, since it has been obtained for the pertinent system information of these large area cells.
Use dedicated channel
The optinal plan of above embodiment, for avoid the broadcast resource of consumption small area cell 34 for broadcast with it is big
Dedicated signaling method can be used in the related system information of area cell.This is described in Figure 14, schematically describes small area
Cell 34 sends large area cell system information by the Dedicated Signaling Channel 102-104 established with terminal or has with the information
The modification of pass, optionally, there are also small area cell system information related with other (neighbouring) small area cells and its modifications
Give activated terminals 35b, by be shown as in Figure 14 solid arrow by dedicated channel send user data, be similar to Figure 13
In channel 92-94, increased dotted arrow indicates to send system information and its modification by Dedicated Signaling Channel 102-104.
Remaining process description is similar with Figure 13 illustrated embodiment.That is, broadcast channel 101 (is expressed as grey in Figure 14
Triangle) by the broadcast of small area cell 34, its small area cell system information gives activated terminals 35b, similar to above-mentioned broadcast
Channel 91.The large area cell system information of large area cell is deposited in the case of a modification, and large area cell can notify the modification
It gives large area cell footprint relevant all small area cells, arrow 105 is shown as in Figure 14, lead to similar to above-mentioned
Know 95.To support non-occupied terminal 35a, some large area cell system informations are at least sent for large area cell 32, such as big face
Product subzone network, large area cell ID, various parameters relevant to large area Cell Broadcast Channel, large area neighbors
The broadcast channel 106 of cell list etc. is similar to above-mentioned broadcast channel 96.
In conversation end and before coming back to idle mode, such as activated terminals are not previously predicted large area cell and cut
When changing, in the case that activated terminals do not need large area cell system information, the limitation of small area cell sends the small fauna of large area
The modification of system information and/or limitation provide the instruction for being moved to another large area cell footprint until conversation end is that have very much
Effect.Then, such as when data connection portion discharges process, only small area cell passes through corresponding Dedicated Signaling Channel
102-104 provides the terminal with newest large area cell system information and is sufficient.In this fashion, when terminal is still located
In activation and it is not really necessary that when this large area cell system information, can avoid sending possible a large amount of large area cells
The instruction of the large area cell footprint of system information modification and/or modification.Since Dedicated Signaling Channel supports high code rate, phase
It is immediately sent to terminal 35b than modifying every time, the transmission of the large area cell system information can without obvious postpone be completed.
Figure 14 illustrated embodiment desirably most high energy efficiency, it is contemplated that more had than broadcast channel using dedicated channel
Efficiency, and in view of small area cell only has smaller size, therefore, receive the more than one terminal of broadcast or common signal channel
Benefit to be impossible from sending in system information.Use the additional of above-mentioned broadcast as shown in figure 13/common signal channel embodiment
Advantage is also applied for present embodiment.
The embodiment of above scheme #3 and #4 are also combinable.For example, the embodiment of scheme #3 can be used to be idle whole
Suitable small area cell and large area cell system information are distributed in end, and the embodiment of scheme #4 can be used for as activation eventually
Suitable small area cell and large area cell system information are distributed in end.I.e. large area cell can be used for sending suitable facet
Product cell and large area cell system information give the terminal in idle mode, and small area cell can be used for sending suitable small
Area cell and large area cell system information give the terminal in activation pattern.
Moreover, embodiment relevant to scheme #1 can be advantageously used for according to scheme #2-4 according to what is be described above
It distributes in small area cell and/or the small area cell and large area cell of large area cell system information.
The embodiments of the present invention can be by applying the program product implementation in computer system.The journey of program product
Sequence defines the function of these embodiments (including method described herein), and can be contained in various, preferably permanent calculating
Machine readable storage medium storing program for executing.The computer readable storage medium of description includes, but are not limited to: what (I) information can be stored permanently
Not writeable storage medium (such as the ROM device in computer, it such as can by the CD-ROM that CD-ROM drive is read
Disk-read, rom chip or any kind of solid-state Nonvolatile semiconductor memory), and (II) information can modify the writeable of storage
Storage medium (such as floppy disk or hard disk drive in floppy disk drive or any kind of solid-state random access semiconductor are deposited
Reservoir, flash memory).Computer program can be run on the processor here.
Claims (14)
1. a kind of method for making terminal at least obtain large area cell system information and small area cell system information, is wirelessly connecing
Enter and include at least small area cell and large area cell in network, the terminal in activation pattern is configured as and the small area
Cell foundation has data connection, and terminal when in idle mode is configured to reside in the large area cell, institute
The method of stating includes:
The terminal when being in the idle mode establishes data session or end when in the activation pattern
End is when reentering the idle mode after completing total data session, in the large area cell wireless interface of the terminal
In the case where enabling, the terminal receives the large area from the large area cell by the large area cell wireless interface
At least first part of cell system information and at least first part of the small area cell system information.
2. the method according to claim 1, further includes: when the terminal is in the activation pattern and the terminal
When small area cell wireless interface enables, the terminal receives at least second part of the small area cell system information.
3. the method according to claim 1, further includes: when the terminal is in the activation pattern and the terminal
When small area cell wireless interface enables, the terminal is connect by the small area cell wireless interface from the small area cell
Receive at least second part of the large area cell system information.
4. the method according to claim 1, further includes: when the terminal is in the activation pattern and small area cell
When wireless interface enables, the terminal can be such that the large area cell wireless interface opens within one or more time cycles
With, and by the large area cell wireless interface from the large area cell receive the large area cell system information to
Few second part.
5. the method according to claim 4, wherein when the terminal in the activation pattern is toggled so that institute
When stating large area cell wireless interface enabling, at least one of one or more of time cycles occur.
6. the method according to claim 5, wherein the trigger packet is included by the large area cell or by described wireless
The network controlling entity for accessing network is supplied at least one triggering of the terminal, the terminal by the small area cell
It is executed in Radio Access Network in the switching and the terminal from a small area cell to another small area cell
Timer ends.
7. according to the method described in claim 6, further include: when the terminal is in the institute of the idle mode and the terminal
When stating large area cell wireless interface and enabling, the terminal is by the large area cell wireless interface from the large area cell
At least partly small area cell system information is received, the part facets product cell system information is about the Radio Access Network
One or more of at least one of other small area cells.
8. the method according to claim 7, wherein at least one of other one or more of small area cells are wrapped
It includes and is active and/or in other small area cells of one or more of process of being activated.
9. method according to claim 1 to 8 further comprises that the terminal passes through the large area cell
Wireless interface receives at least one small area cell for receiving the small area cell system information from large area cell
State of activation.
10. method according to claim 1 to 8 further comprises when the large area cell wireless interface opens
Used time deactivates the small area cell wireless interface, keeps the large area small when the small area cell wireless interface enables
Area's wireless interface deactivates.
11. a kind of terminal includes the steps that the device for requiring at least one of 1-10 for perform claim.
12. a kind of large area cell, be configured for according to claim 1 in -10 one or more methods and/
Or terminal described in 1, the large area cell are at least configured to according to claim 1: from the small area cell and/or
The first part of at least described small area cell system information is obtained from the network management entity of wireless access communication network；And
Send the small area cell system information at least first part and the large area cell system information at least first
Part.
13. large area cell described in 2 according to claim 1, wherein at least first of the large area cell system information
Divide and send in a predetermined pattern, preferably periodically sends.
14. a kind of small area cell, one or more methods in -10 according to claim 1 are configured for, according to
One or more large area cells, described in terminal described in claim 11 and/or according to claim 1 2-13
Small area cell is at least configured to: at least first part for providing the small area cell system information is small to the large area
Area is to be sent to the terminal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423445.3A CN110225570B (en) | 2011-11-08 | 2012-11-07 | Method, terminal and cell for system information distribution in wireless access telecommunication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11188298.1 | 2011-11-08 | ||
| EP11188298 | 2011-11-08 | ||
| PCT/EP2012/071966 WO2013068368A1 (en) | 2011-11-08 | 2012-11-07 | Distribution of system information in a wireless access telecommunications system |
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| CN201910423445.3A Division CN110225570B (en) | 2011-11-08 | 2012-11-07 | Method, terminal and cell for system information distribution in wireless access telecommunication system |
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| CN103931239A CN103931239A (en) | 2014-07-16 |
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| CN201910423445.3A Active CN110225570B (en) | 2011-11-08 | 2012-11-07 | Method, terminal and cell for system information distribution in wireless access telecommunication system |
| CN201280055016.1A Active CN103931239B (en) | 2011-11-08 | 2012-11-07 | Terminal is set to obtain method, terminal, large area cell and the small area cell of system information |
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| Country | Link |
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| EP (1) | EP2777329A1 (en) |
| CN (2) | CN110225570B (en) |
| WO (1) | WO2013068368A1 (en) |
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| EP2756714B1 (en) | 2011-09-13 | 2019-11-06 | Koninklijke KPN N.V. | Session setup in an energy-efficient cellular wireless telecommunications system |
| WO2013068364A1 (en) | 2011-11-08 | 2013-05-16 | Koninklijke Kpn N.V. | Distribution of system information in a wireless access telecommunications system |
| EP3020231B1 (en) | 2013-07-11 | 2020-03-11 | Koninklijke KPN N.V. | Improved session setup in an energy-efficient cellular wireless telecommunications system |
| EP2966912A1 (en) | 2014-07-09 | 2016-01-13 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Method of, and transceiver station and mobile terminal for, distributing system information in a cellular telecommunications network. |
| ES2773308T3 (en) | 2014-10-23 | 2020-07-10 | Nokia Solutions & Networks Oy | Method and apparatus for acquiring system information |
| US10616822B2 (en) * | 2015-02-10 | 2020-04-07 | Qualcomm Incorporated | System information updating |
| US10200920B2 (en) | 2015-02-10 | 2019-02-05 | Qualcomm Incorporated | On-demand system information |
| US9769733B2 (en) | 2015-02-10 | 2017-09-19 | Qualcomm Incorporated | Incremental transmission of system information |
| EP3294004B1 (en) | 2015-05-29 | 2020-10-21 | Huawei Technologies Co., Ltd. | System information acquisition method in cell cluster, relevant device and system |
| US10708853B2 (en) * | 2015-06-11 | 2020-07-07 | Apple Inc. | Low overhead system information acquisition for wireless communication |
| HK1247505A1 (en) * | 2015-08-14 | 2018-09-21 | 瑞典爱立信有限公司 | Distribution of system access information in wireless communication system |
| CN110493836B (en) * | 2015-09-11 | 2021-07-27 | 展讯通信（上海）有限公司 | MTC terminal cell switching control method and device |
| CN119402879A (en) | 2015-10-29 | 2025-02-07 | 华为技术有限公司 | Method for transmitting system information, base station, terminal and system |
| CN107852671B (en) * | 2015-11-30 | 2020-04-28 | 华为技术有限公司 | Access control method, access equipment and mobile terminal |
| CN107371176B (en) * | 2016-05-13 | 2019-08-16 | 电信科学技术研究院 | A kind of cell operation method and device |
| CN107623936B (en) * | 2016-07-14 | 2023-06-20 | 夏普株式会社 | System information acquisition method, base station and user equipment |
| CN112803988B (en) * | 2021-01-25 | 2022-08-02 | 哈尔滨工程大学 | Hybrid contact graph routing method based on link error rate prediction |
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Also Published As
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| WO2013068368A1 (en) | 2013-05-16 |
| EP2777329A1 (en) | 2014-09-17 |
| CN110225570B (en) | 2021-09-07 |
| CN103931239A (en) | 2014-07-16 |
| CN110225570A (en) | 2019-09-10 |
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