CN102869095A - Method, system and network side device for informing data transmission - Google Patents
Method, system and network side device for informing data transmission Download PDFInfo
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- CN102869095A CN102869095A CN201110188386XA CN201110188386A CN102869095A CN 102869095 A CN102869095 A CN 102869095A CN 201110188386X A CN201110188386X A CN 201110188386XA CN 201110188386 A CN201110188386 A CN 201110188386A CN 102869095 A CN102869095 A CN 102869095A
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Abstract
The invention discloses a method, a system and a network side device for informing data transmission for an LTE-LAN (long term evolution-local area network) system. The method includes the steps: transmitting data to a terminal on downlink transmission resources distributed for the terminal by a network side and informing the terminal of transmission technology used on the downlink transmission resources through physical layer signaling by the network side; and/or informing the terminal of transmission technology used on uplink transmission resources through physical layer signaling by the network side, and transmitting the data to the network side on the uplink transmission resources according to the informed transmission technology by the terminal. By the aid of the scheme, corresponding transmission technology can be indicated for the transmission resources by the physical layer signaling, transmission adaptability is improved, complexity of implementation can be decreased, and the cost of the terminal is greatly reduced.
Description
Technical field
The present invention relates to moving communicating field, especially relate to a kind of Notification Method, system and network equipment of the transfer of data for the LTE-LAN system.
Background technology
Along with popularizing of mobile Internet (Mobile Internet) and smart mobile phone, the Mobile data traffic demand rapidly increases.According to authoritative institution's prediction, in Future Ten year (2011-2020), the mobile data services amount is also doubled every year, will increase by 1000 times in 10 years.
The mobile data services ratio increases gradually in the carrier network, has affected the conventional telecommunications level professional, and still, because mobile data services are according to charge on traffic, its profit growth rate and flow load are not directly proportional.In addition, the mobile data services of rapid growth have proposed stern challenge to the transmittability of mobile communications network.Most mobile data services mainly occur in indoor and the focus environment, are presented as nomadic/local wireless access scene.According to statistics, at present nearly 70% mobile data services occur in indoorly, and this ratio also will continue to increase, and expecting 2012 will be above 80%.The solution that operator covers in the urgent need to indoor high-speed rate, focus.
Under the indoor and focus environment, the feature of mobile data services is the usually fixing or very movement of low speed of user, and is less demanding to mobility; On the other hand, mobile data services are mainly Internet service, and are more single to the requirement of service quality (Quality of Service, QoS), and far below the requirement of carrier class business to QoS.Traditional cell mobile communication systems mainly towards be that the carrier class of high-speed mobile, seamless switching is professional, when it carried Internet protocol (Internet Protocol, the IP) data packet traffic of large flow, low speed, efficient was on the low side, high cost.
To sum up, honeycomb mobile operator needs low cost, is fit to the solution of nomadic/local wireless data access, further reduces the expense of original system, with the throughput of further raising system, satisfies the data user's of high speed development demand.
To the demand of indoor focus soverlay technique, Long Term Evolution (Long Term Evolution, LTE) focus soverlay technique has become the focus of discussion gradually, usually this technology can be called LTE-LAN (LTE-Local Area Network).
The LTE-LAN Preliminary design still is multiple-input and multiple-output (Multiple-Input Multiple-Output, MIMO)-orthogonal frequency division multiplexer (Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing, OFDM), Some Key Technologies and LTE/LTE-A are similar, compare LTE/LTE-A, the characteristics of LTE-LAN are with strong points, only need to consider the scene of indoor focus (Indoor Hotpot), therefore a lot of designs can be simplified, thereby reduce complexity and save cost.
In the LTE system, consider the various factorss such as speed of different and moving velocity of terminal of diversity, terminal channel difference in quality and the disturbed condition of application scenarios, the LTE system supports multiple transmission mode, sees Table 1.
The semi-static high-rise configuration table of comparisons of table 1 transmission mode and transmission technology
LTE R8 version is supported above 7 kinds of transmission modes, and the corresponding a kind of main transmission technology of different transmission modes also comprises a kind of transmission technology for rollback in addition, is generally transmit diversity technique, because transmit diversity technique has reasonable robustness.Above-mentioned transmission mode by high-rise (such as rrc layer) signaling to terminal.Switching between the different transmission modes need to be notified to terminal by high-level signaling, changes so that terminal is determined transmission mode, and the transmission technology switching in the transmission mode then mainly relies on the blind Detecting control signal.
The problem that prior art mainly exists is:
The switching of transmission technology relies on high-level signaling, therefore can only realize semi-static switching, and because high-level signaling is for same terminal, on long time and full bandwidth, can only use the same transmission technology, can't switch main transmission technology according to the mode of transmission mode at short notice, the adaptability that causes transmitting can't improve.And different transmission modes is owing to having different descending control signaling forms, different feedback method and different receiving algorithms, and too much transmission mode also can cause the increase of complexity.
Although also support the simple transmission technology that is used for rollback under the present same transmission mode, the switching of transmission technology has been subject to larger restriction, only supports the switching of transmit diversity technique and another kind of transmission technology.In addition, this rollback needs terminal that the control signal form is carried out blind Detecting, and the complexity that blind Detecting is brought is higher, causes the increase of terminal cost.
In addition, the LTE-LAN system is one, and so the complexity of LTE-LAN can not be too high to the very sensitive system of cost, and multiple transmission mode and the corresponding handoff technique of existing LTE technology can not adapt to the LTE-LAN system well.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of Notification Method, system and network equipment of the transfer of data for the LTE-LAN system, improves the adaptability of transmission, reduces the complexity that realizes and greatly reduces the cost of terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of Notification Method of the transfer of data for the LTE-LAN system, comprising:
Network side on the downlink transfer resource of distributing for terminal to described terminal transmission data, the transmission technology that described network side notifies described terminal to use in described downlink transfer resource by physical layer signaling; And/or,
The transmission technology of using on the uplink transmission resource that network side distributes by the physical layer signaling notification terminal, described terminal according to the described transmission technology of notice on described uplink transmission resource to described network side the transmission of data.
This Notification Method also comprises: network side is terminal distribution downlink transfer resource, is at least one sub-transmission resource block with the downlink transfer resource division, and determines and notify the transmission technology of using on each sub-transmission resource block.
Further, described network side on the downlink transfer resource of distributing for terminal to described terminal transmission data, comprise: network side uses corresponding transmission technology to the terminal transmission data according to the transmission technology of determining in each sub-transmission resource block of the downlink transfer resource of distributing.
This Notification Method also comprises: network side is the terminal distribution uplink transmission resource, and described uplink transmission resource is divided at least one sub-transmission resource block, and determines and notify the transmission technology of using on each sub-transmission resource block.
Further, described terminal according to the notice transmission technology on uplink transmission resource to described network side the transmission of data, comprise: terminal uses corresponding transmission technology to the network side the transmission of data according to the transmission technology of notice in each sub-transmission resource block of the uplink transmission resource of distributing.
Further, the transmission technology that described network side notifies described terminal to use at described transfer resource by physical layer signaling, comprise: network side is indicated the transmission technology of using on each sub-transmission resource block of the transfer resource that distributes by physical layer signaling, and this physical layer signaling is sent to terminal.
Further, described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
The invention also discloses a kind of reporting system of the transfer of data for the LTE-LAN system, comprising: network side and terminal, wherein,
Described network side is used on the downlink transfer resource of distributing for described terminal to the terminal transmission data, the transmission technology of using in the downlink transfer resource of distributing by the physical layer signaling notification terminal; And/or,
The transmission technology of using on the uplink transmission resource that described network side is used for notifying described terminal to distribute by physical layer signaling, terminal be used for transmission technology according to notice on uplink transmission resource to the network side the transmission of data.
Further, described network side is for the transmission technology of using at the transfer resource that distributes by the physical layer signaling notification terminal, be specially: network side is used for indicating the transmission technology of using on each sub-transmission resource block of the transfer resource that distributes by physical layer signaling, and this physical layer signaling is sent to terminal.
Further, described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
The invention also discloses a kind of network equipment of the transfer of data for the LTE-LAN system, comprising:
Notification unit is used for by the physical layer signaling notification terminal in the transmission technology of using for the transfer resource of this terminal distribution, and described transfer resource is downlink transfer resource or uplink transmission resource.
This network equipment also comprises: determining unit, be used to the terminal distribution transfer resource, and transfer resource is divided at least one sub-transmission resource block, and the transmission technology of using on definite each sub-transmission resource block.
This network equipment also comprises: transmitting element, be used for according to the transmission technology of determining, and use corresponding transmission technology to the terminal transmission data in each sub-transmission resource block of the transfer resource that distributes.
This network equipment also comprises: receiving element is used for according to the transmission technology of determining, the data that adopt corresponding data receiver algorithm receiving terminal to transmit in each sub-transmission resource block.
Further, described notification unit is used for by the physical layer signaling notification terminal in the transmission technology of using for the transfer resource of this terminal distribution, be specially: notification unit is used for indicating the transmission technology of using on each sub-transmission resource block of the transfer resource that distributes by physical layer signaling, and this physical layer signaling sent to terminal, with the corresponding transmission technology of using on each sub-transmission resource block of notification terminal.
Further, described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
Compared to existing technology, scheme proposed by the invention, come to indicate corresponding transmission technology information for transfer resource by physical layer signaling, thereby supported preferably to use different transmission technologys in the different sub-transmission resource block of frequency domain, improved the adaptability of transmission; And, owing to the transmission technology of coming by physical layer signaling to use on the notification terminal transfer resource, high-level signaling need to not carry out blind Detecting like that for another example, also no longer need multiple descending control signaling form, reduced the complexity that realizes, and greatly reduce the cost of terminal, be more suitable for being applied to the LTE-LAN system.
Description of drawings
Fig. 1 is the Notification Method schematic flow sheet of downlink data transmission direction among the present invention;
Fig. 2 is the frequency selective fading schematic diagram of down channel in the example 1 of the present invention;
Fig. 3 is that schematic diagram is divided in the distribution of transfer resource in the example 1 of the present invention;
Fig. 4 is the frequency selective fading schematic diagram of down channel in the example 2 of the present invention;
Fig. 5 is that schematic diagram is divided in the distribution of transfer resource in the example 2 of the present invention;
Fig. 6 is the Notification Method schematic flow sheet of transmitting uplink data direction among the present invention;
Fig. 7 is the frequency selective fading schematic diagram of up channel in the example 3 of the present invention;
Fig. 8 is that schematic diagram is divided in the distribution of transfer resource in the example 3 of the present invention;
Fig. 9 is the structural representation of data transmission notice system among the present invention;
Figure 10 is the network equipment structural representation of realizing data transmission notice among the present invention.
Embodiment
Embodiments of the present invention is described in detail below in conjunction with accompanying drawing.Need to prove, in the situation that do not conflict, the embodiment among the application and the feature among the embodiment be combination in any mutually.
Basic thought of the present invention is: on the downlink data transmission direction, network side on the downlink transfer resource of distributing for terminal to the terminal transmission data, the transmission technology that network side uses in described downlink transfer resource by the physical layer signaling notification terminal; And/or, on the transmitting uplink data direction, the transmission technology of using on the uplink transmission resource that network side distributes by the physical layer signaling notification terminal, terminal according to the transmission technology of notice on described uplink transmission resource to the network side the transmission of data.
Wherein, on the downlink data transmission direction:
Described network side on the downlink transfer resource of distributing for terminal before the terminal transmission data, also comprise: network side is terminal distribution downlink transfer resource, be at least one sub-transmission resource block with the downlink transfer resource division, and determine and notify the transmission technology of using on each sub-transmission resource block.
For example, network side is that the downlink transfer resource of terminal distribution comprises on the frequency domain L transmission symbol on K subcarrier and the time domain, wherein K is the integer greater than 1, L is the integer greater than 0, and the frequency domain selectivity decline situation according to down channel is divided into M sub-transmission resource block with the downlink transfer resource, can be designated as Ω
1, Ω
2..., Ω
M, M sub-transmission resource block Ω
1, Ω
2..., Ω
MOn time domain, all comprise L transmission symbol, and on frequency domain, comprise respectively γ
1, γ
2..., γ
KIndividual subcarrier, wherein γ
1, γ
2..., γ
KBe integer; Network side is determined the transmission technology used on each sub-transmission resource block according to the down channel state.
Described network side to the terminal transmission data, comprising on the downlink transfer resource of distributing for terminal: network side uses corresponding transmission technology to the terminal transmission data according to the transmission technology of determining in the downlink transfer resource of distributing.Particularly, network side uses corresponding transmission technology to the terminal transmission data according to the transmission technology of determining in each sub-transmission resource block of the downlink transfer resource of distributing.
The transmission technology that described network side uses in the downlink transfer resource of distributing by the physical layer signaling notification terminal, comprise: network side is indicated the transmission technology of using on each sub-transmission resource block of the downlink transfer resource of distributing by physical layer signaling, and this physical layer signaling sent to terminal, with the corresponding transmission technology of using on each sub-transmission resource block of notification terminal.
For example, M sub-transmission resource block Ω of physical layer signaling indication of transmitting by the control channel in physical layer of network side
1, Ω
2..., Ω
MThe upper corresponding transmission technology of using, and this physical layer signaling sent to terminal, with notification terminal M sub-transmission resource block Ω
1, Ω
2..., Ω
MThe corresponding transmission technology of upper use.
Described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
Described network side by the physical layer signaling notification terminal after the transmission technology that the downlink transfer resource of distributing is used, also comprise: described terminal adopts corresponding data receiver algorithm to receive the data of network side transmission according to the transmission technology of notice in the downlink transfer resource of distributing.Particularly, terminal adopts corresponding data receiver algorithm to receive the data that network side transmits in each sub-transmission resource block according to the transmission technology of notice.
On the transmitting uplink data direction:
Before the transmission technology of using on the uplink transmission resource that described network side distributes by the physical layer signaling notification terminal, also comprise: network side is the terminal distribution uplink transmission resource, transfer resource is divided at least one sub-transmission resource block, and determines and notify the transmission technology of using on each sub-transmission resource block.
For example, network side is that the uplink transmission resource of terminal distribution comprises on the frequency domain L transmission symbol on K subcarrier and the time domain, wherein K is the integer greater than 1, L is the integer greater than 0, and the frequency domain selectivity decline situation according to up channel is divided into M sub-transmission resource block with uplink transmission resource, can be designated as Ω
1, Ω
2..., Ω
M, M sub-transmission resource block Ω
1, Ω
2..., Ω
MOn time domain, all comprise L transmission symbol, and on frequency domain, comprise respectively γ
1, γ
2..., γ
KIndividual subcarrier, wherein γ
1, γ
2..., γ
KBe integer; Network side is determined the transmission technology used on each sub-transmission resource block according to the up channel state.
The transmission technology that described network side uses in the uplink transmission resource of distributing by the physical layer signaling notification terminal, comprise: network side is indicated the transmission technology of using on each sub-transmission resource block of the uplink transmission resource of distributing by physical layer signaling, and this physical layer signaling sent to terminal, with the corresponding transmission technology of using on each sub-transmission resource block of notification terminal.
Described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
Described terminal according to the transmission technology of notice on uplink transmission resource to the network side the transmission of data, comprising: terminal uses corresponding transmission technology to the network side the transmission of data according to the transmission technology of notice in the uplink transmission resource of distributing.Particularly, terminal uses corresponding transmission technology to the network side the transmission of data according to the transmission technology of notice in each sub-transmission resource block of the uplink transmission resource of distributing.
Described terminal according to the notice transmission technology on the uplink transmission resource after the network side the transmission of data, also comprise: network side adopts the data of corresponding data receiver algorithm receiving terminal transmission according to the transmission technology of determining in the uplink transmission resource of distributing.Particularly, network side is according to the transmission technology of determining, the data that adopt corresponding data receiver algorithm receiving terminal to transmit in each sub-transmission resource block.
Example 1
The downlink data transmission direction flow process of the inventive method is as shown in Figure 1:
For example, network side is to terminal distribution downlink transfer resource, and the method for salary distribution is full bandwidth, namely whole resource bandwidth is distributed to terminal.If the frequency domain selectivity of down channel decline situation as shown in Figure 2, the downlink transfer resource division that network side will be distributed to terminal according to the frequency domain selectivity decline situation of down channel shown in Fig. 2 is 3 sub-transmission resource block, as shown in Figure 3.If whole downlink transfer resource comprises the individual transmission symbol of 10m (m is positive integer) on (n is positive integer) the individual subcarrier of 16n on the frequency domain and the time domain, distribution condition according to Fig. 3 example, sub-transmission resource block 1 comprises 4n subcarrier, sub-transmission resource block 2 comprises 8n subcarrier, sub-transmission resource block 3 comprises 4n subcarrier, and these 3 sub-transmission resource block include 10m transmission symbol in time domain.Need to prove, described herein to be divided into 3 sub-transmission resource block be an example.In the reality, can be a whole transmission resource block with the downlink transfer resource division of distributing to terminal, also can be divided into some sub-transmission resource block, such as 2,4,5,6 etc.As for concrete downlink transfer resource distribute, sub-transmission resource block divides, network side (for example base station) can determine according to the down channel situation, specific implementation is prior art, does not repeat them here.
During transmission technology that network side is determined to use on each sub-transmission resource block according to the down channel situation, as seen from Figure 2:
For sub-transmission resource block 1, channel condition is good, since Linear Precoding aspect message transmission rate and robustness between nonlinear precoding technology and transmit diversity technique, therefore network side is determined to use the Linear Precoding the transmission of data in sub-transmission resource block 1, for example can be SU-MIMO (Single User MIMO) or MU-MIMO (Multi-User MIMO) precoding technique;
For sub-transmission resource block 2, channel condition is very good, owing to wishing that message transmission rate is the highest in this case, therefore network side is determined to use nonlinear precoding technical transmission data in sub-transmission resource block 2, for example can be MU-MIMO or the SU-MIMO precoding technique in the uncommon agate precoding (Tomlinson-Harashima Precoding, THP) of Tomlinson-Harrar;
For sub-transmission resource block 3, channel condition is relatively poor, owing to comparing with Linear Precoding with the nonlinear precoding technology, the robustness of transmit diversity technique is best, so network side is determined to use the transmit diversity technique the transmission of data in sub-transmission resource block 3.
Network side determines that according to the down channel situation specific implementation of the transmission technology used on each sub-transmission resource block is prior art, does not repeat them here.
Particularly, network side on the control channel of physical layer, the transmission technology of using the physical layer signaling notification terminal to use 3 sub-transmission resource block; Described physical layer signaling can be the physical layer signaling that arranges for the notification transmission technology, is which DCI Format is different from existing directly indication;
For example, bit (bit) the position state that is used for the transmission technology indication that physical layer signaling uses can be corresponding to table 2, because total transfer resource is divided into 3 sub-transmission resource block, network side will issue 6bit information by physical layer signaling so, and the transmission technology that notification terminal uses in sub-transmission resource block 1, sub-transmission resource block 2 and sub-transmission resource block 3 is respectively Linear Precoding, nonlinear precoding technology, transmit diversity technique.Be not difficult to find out, for the different sub-transmission resource block of same terminal, the inventive method can adopt different transmission technologys, to adapt to corresponding transmission conditions.
Table 2 physical layer signaling indicating means one signal table
For example, in conjunction with Fig. 2, Fig. 3, network side uses Linear Precoding to the terminal transmission data in sub-transmission resource block 1, uses the nonlinear precoding technology to the terminal transmission data in sub-transmission resource block 2, uses transmit diversity technique to the terminal transmission data in sub-transmission resource block 3.
It needs to be noted, on downlink data transmission direction of the present invention, step 102 and step 103 are not subjected to the impact of time order and function order in concrete operations, these two steps are and are that a step realizes in the practical operation, and more than being divided into two steps only is for the convenience on narrating.
Example 2
The below provides another embodiment of the downlink data transmission direction of the inventive method, and concrete processing procedure is as follows:
Step 201, network side is terminal distribution downlink transfer resource, according to the down channel situation downlink transfer resource is divided, transfer resource is divided at least one sub-transmission resource block, and determine the transmission technology used on each sub-transmission resource block according to the down channel situation.
For example, network side is to terminal distribution downlink transfer resource, and the method for salary distribution is full bandwidth, namely whole resource bandwidth is distributed to terminal.If the frequency domain selectivity of down channel decline situation as shown in Figure 4, the downlink transfer resource division that network side will be distributed to terminal according to the frequency domain selectivity decline situation of down channel shown in Fig. 4 is 2 sub-transmission resource block, as shown in Figure 5.If whole downlink transfer resource comprises the individual transmission symbol of 10m (m is positive integer) on (n is positive integer) the individual subcarrier of 10n on the frequency domain and the time domain, distribution condition according to Fig. 5 example, sub-transmission resource block 1 comprises 4n subcarrier, sub-transmission resource block 2 comprises 6n subcarrier, and these 2 sub-transmission resource block include 10m transmission symbol in time domain.Need to prove the also example just of 2 sub-transmission resource block that is divided into described herein.Generally divide according to the frequency domain selectivity decline situation of channel, the method for different sub-transmission resource block divisions may be arranged for different down channel situations.Concrete downlink transfer resource is distributed, sub-transmission resource block is divided, and network side (for example base station) can determine according to the down channel situation, and specific implementation is prior art, does not repeat them here.
During transmission technology that network side is determined to use on each sub-transmission resource block according to the down channel situation, as seen from Figure 4:
For sub-transmission resource block 1, channel condition is relatively poor, and network side is determined to use transmit diversity technique in sub-transmission resource block 1;
For sub-transmission resource block 2, channel condition is very good, and network side is determined to use Linear Precoding in sub-transmission resource block 2, for example SU-MIMO or MU-MIMO precoding technique.
Network side determines that according to the down channel situation specific implementation of the transmission technology used on each sub-transmission resource block is prior art, does not repeat them here.
Step 202, network side uses corresponding transmission technology to the terminal transmission data in each sub-transmission resource block of the downlink transfer resource of distributing for terminal.
For example, in conjunction with Fig. 4, Fig. 5, network side uses transmit diversity technique to the terminal transmission data in sub-transmission resource block 1, uses Linear Precoding to the terminal transmission data in sub-transmission resource block 2.
Step 203, network side is indicated the transmission technology of using on each sub-transmission resource block of the transfer resource that distributes by physical layer signaling, and this physical layer signaling sent to terminal at the control channel of physical layer, with the corresponding transmission technology of using on each sub-transmission resource block of notification terminal.
Particularly, network side on the control channel of physical layer, the transmission technology of using the physical layer signaling notification terminal to use 2 sub-transmission resource block;
For example, the signaling bit position state that is used for the transmission technology indication that physical layer signaling uses can be corresponding to table 3, because total transfer resource is divided into 2 sub-transmission resource block, network side will issue 2bit information by physical layer signaling so, and notification terminal is respectively transmit diversity technique and Linear Precoding in the transmission technology of sub-transmission resource block 1 and 2 uses of sub-transmission resource block.
Table 3 physical layer signaling indicating means two signal tables
Step 204, terminal adopt corresponding data receiver algorithm to receive the data that network side transmits in each sub-transmission resource block according to the transmission technology of notice.
Example 3
Example 1 and example 2 are the preferred embodiments for the downlink data transmission direction of the inventive method, and the below provides a preferred embodiment of the transmitting uplink data direction of the inventive method.The transmitting uplink data direction flow process of the inventive method as shown in Figure 6.
For example, network side is to the terminal distribution uplink transmission resource, and the method for salary distribution is full bandwidth, namely whole resource bandwidth is distributed to terminal.If the frequency selective fading situation of up channel as shown in Figure 7, the uplink transmission resource that network side will be distributed to terminal according to the frequency domain selectivity decline situation of up channel shown in Fig. 7 is divided into 2 sub-transmission resource block, as shown in Figure 8.If whole downlink transfer resource comprises the individual transmission symbol of 10m (m is positive integer) on (n is positive integer) the individual subcarrier of 10n on the frequency domain and the time domain, distribution condition according to Fig. 8 example, sub-transmission resource block 1 comprises 4n subcarrier, sub-transmission resource block 2 comprises 6n subcarrier, and these 2 sub-transmission resource block include 10m transmission symbol in time domain.Need to prove, described herein to be divided into 2 sub-transmission resource block be an example.In the reality, the uplink transmission resource of distributing to terminal can be divided into a whole transmission resource block, perhaps be divided into some sub-transmission resource block, such as 2,4,5,6 etc.As for concrete uplink transmission resource distribute, sub-transmission resource block divides, network side (for example base station) can determine according to the up channel situation, specific implementation is prior art, does not repeat them here.
During transmission technology that network side is determined to use on each sub-transmission resource block according to the up channel situation, as seen from Figure 7:
For sub-transmission resource block 1, channel condition is relatively poor, and network side is determined to use transmit diversity technique in sub-transmission resource block 1;
For sub-transmission resource block 2, channel condition is very good, and network side is determined to use Linear Precoding in sub-transmission resource block 2, for example SU-MIMO or MU-MIMO precoding technique.
Network side determines that according to the up channel situation specific implementation of the transmission technology used on each sub-transmission resource block is prior art, does not repeat them here.
Particularly, network side on the control channel of physical layer, the transmission technology of using the physical layer signaling notification terminal to use 2 sub-transmission resource block; Described physical layer signaling can be the physical layer signaling that arranges for the notification transmission technology, is which DCI Format is different from existing directly indication;
For example, the signaling bit position state that is used for the transmission technology indication that physical layer signaling uses can be corresponding to table 3, because total transfer resource is divided into 2 sub-transmission resource block, network side will issue 2bit information by physical layer signaling so, and notification terminal is respectively transmit diversity technique and Linear Precoding in the transmission technology of sub-transmission resource block 1 and 2 uses of sub-transmission resource block.
For example, in conjunction with Fig. 7, Fig. 8, terminal uses transmit diversity technique to the network side the transmission of data according to the transmission technology of notice in sub-transmission resource block 1, uses Linear Precoding to the network side the transmission of data in sub-transmission resource block 2.
Fig. 9 is the structural representation of data transmission notice system among the present invention; As shown in Figure 9, this system comprises network side and terminal, wherein,
Network side is used on the downlink transfer resource of distributing for terminal to the terminal transmission data, the transmission technology of using in described downlink transfer resource by the physical layer signaling notification terminal; And/or,
The transmission technology of using on the uplink transmission resource that network side is used for distributing by the physical layer signaling notification terminal; Terminal be used for transmission technology according to notice on described uplink transmission resource to the network side the transmission of data.
Network side is for the transmission technology of using at the transfer resource that distributes by the physical layer signaling notification terminal, be specially: network side is used for indicating the transmission technology of using on each sub-transmission resource block of the transfer resource that distributes by physical layer signaling, and this physical layer signaling sent to terminal, with the corresponding transmission technology of using on each sub-transmission resource block of notification terminal.
Described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
Wherein, on the downlink data transmission direction:
Network side also is used for: being terminal distribution downlink transfer resource, is at least one sub-transmission resource block according to the down channel state with the downlink transfer resource division, and determines the transmission technology used on each sub-transmission resource block according to the down channel state.
Network side is used on the transfer resource that distributes for terminal to the terminal transmission data, be specially: network side is used for according to the transmission technology of determining, uses corresponding transmission technology to the terminal transmission data in each sub-transmission resource block of the downlink transfer resource of distributing.
Terminal is used for: according to the transmission technology of notice, adopt corresponding data receiver algorithm to receive the data of network side transmission in the downlink transfer resource of distributing.Be specially, terminal is used for the transmission technology according to notice, adopts corresponding data receiver algorithm to receive the data that network side transmits in each sub-transmission resource block.
On the transmitting uplink data direction:
Network side also is used for: be the terminal distribution uplink transmission resource, according to the up channel state uplink transmission resource be divided at least one sub-transmission resource block, and determine the transmission technology used on each sub-transmission resource block according to the up channel state.
Terminal be used for transmission technology according to notice on transfer resource to the network side the transmission of data, be specially: terminal is used for the transmission technology according to notice, uses corresponding transmission technology to the network side the transmission of data in the uplink transmission resource of distributing.Particularly, terminal is used for the transmission technology according to notice, uses corresponding transmission technology to the network side the transmission of data in each sub-transmission resource block of the uplink transmission resource of distributing.
Network side also is used for according to the transmission technology of determining, adopts the data of corresponding data receiver algorithm receiving terminal transmission in the uplink transmission resource of distributing.Particularly, network side is used for according to the transmission technology of determining, the data that adopt corresponding data receiver algorithm receiving terminal to transmit in each sub-transmission resource block.
Figure 10 is the network equipment structural representation of realizing data transmission notice among the present invention; As shown in figure 10, this network equipment comprises: notification unit, be used for by the physical layer signaling notification terminal in the transmission technology of using for the transfer resource of this terminal distribution, and described transfer resource is downlink transfer resource or uplink transmission resource.
Notification unit is used for by the physical layer signaling notification terminal in the transmission technology of using for the transfer resource of this terminal distribution, be specially: notification unit is used for indicating the transmission technology of using on each sub-transmission resource block of the transfer resource that distributes by physical layer signaling, and this physical layer signaling sent to terminal, with the corresponding transmission technology of using on each sub-transmission resource block of notification terminal.
Described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
This network equipment also comprises: determining unit, be used to the terminal distribution transfer resource, and according to the down channel state transfer resource is divided at least one sub-transmission resource block, and determines the transmission technology used on each sub-transmission resource block according to the down channel state.
This network equipment also comprises: transmitting element, be used on the transfer resource that distributes for terminal to the terminal transmission data, be specially: according to the transmission technology of determining, use corresponding transmission technology to the terminal transmission data in each sub-transmission resource block of the transfer resource that distributes.
This network equipment also comprises: receiving element, be used for according to the transmission technology of determining, adopt the data of corresponding data receiver algorithm receiving terminal transmission at the transfer resource that distributes, be specially: according to the transmission technology of determining, the data that adopt corresponding data receiver algorithm receiving terminal to transmit in each sub-transmission resource block.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. a Notification Method that is used for the transfer of data of LTE-LAN system is characterized in that, comprising:
Network side on the downlink transfer resource of distributing for terminal to described terminal transmission data, the transmission technology that described network side notifies described terminal to use in described downlink transfer resource by physical layer signaling; And/or,
The transmission technology of using on the uplink transmission resource that network side distributes by the physical layer signaling notification terminal, described terminal according to the described transmission technology of notice on described uplink transmission resource to described network side the transmission of data.
2. method according to claim 1 is characterized in that, also comprises: network side is terminal distribution downlink transfer resource, is at least one sub-transmission resource block with the downlink transfer resource division, and determines and notify the transmission technology of using on each sub-transmission resource block.
3. method according to claim 2, it is characterized in that, described network side on the downlink transfer resource of distributing for terminal to described terminal transmission data, comprise: network side uses corresponding transmission technology to the terminal transmission data according to the transmission technology of determining in each sub-transmission resource block of the downlink transfer resource of distributing.
4. method according to claim 1, it is characterized in that, also comprise: network side is the terminal distribution uplink transmission resource, and described uplink transmission resource is divided at least one sub-transmission resource block, and determines and notify the transmission technology of using on each sub-transmission resource block.
5. method according to claim 4, it is characterized in that, described terminal according to the notice transmission technology on uplink transmission resource to described network side the transmission of data, comprise: terminal uses corresponding transmission technology to the network side the transmission of data according to the transmission technology of notice in each sub-transmission resource block of the uplink transmission resource of distributing.
6. arbitrary described method in 5 according to claim 1, it is characterized in that, the transmission technology that described network side notifies described terminal to use at described transfer resource by physical layer signaling, comprise: network side is indicated the transmission technology of using on each sub-transmission resource block of the transfer resource that distributes by physical layer signaling, and this physical layer signaling is sent to terminal.
7. method according to claim 6 is characterized in that, described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
8. a reporting system that is used for the transfer of data of LTE-LAN system is characterized in that, comprising: network side and terminal, wherein,
Described network side is used on the downlink transfer resource of distributing for described terminal to the terminal transmission data, the transmission technology of using in the downlink transfer resource of distributing by the physical layer signaling notification terminal; And/or,
The transmission technology of using on the uplink transmission resource that described network side is used for notifying described terminal to distribute by physical layer signaling, terminal be used for transmission technology according to notice on uplink transmission resource to the network side the transmission of data.
9. system according to claim 8, it is characterized in that, described network side is for the transmission technology of using at the transfer resource that distributes by the physical layer signaling notification terminal, be specially: network side is used for indicating the transmission technology of using on each sub-transmission resource block of the transfer resource that distributes by physical layer signaling, and this physical layer signaling is sent to terminal.
10. system according to claim 9 is characterized in that, described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
11. a network equipment that is used for the transfer of data of LTE-LAN system is characterized in that, comprising:
Notification unit is used for by the physical layer signaling notification terminal in the transmission technology of using for the transfer resource of this terminal distribution, and described transfer resource is downlink transfer resource or uplink transmission resource.
12. network equipment according to claim 11, it is characterized in that, also comprise: determining unit is used to the terminal distribution transfer resource, transfer resource is divided at least one sub-transmission resource block, and the transmission technology of using on definite each sub-transmission resource block.
13. network equipment according to claim 11 is characterized in that, also comprises: transmitting element, be used for according to the transmission technology of determining, use corresponding transmission technology to the terminal transmission data in each sub-transmission resource block of the transfer resource that distributes.
14. network equipment according to claim 11 is characterized in that, also comprises: receiving element is used for according to the transmission technology of determining, the data that adopt corresponding data receiver algorithm receiving terminal to transmit in each sub-transmission resource block.
15. arbitrary described network equipment in 14 according to claim 11, it is characterized in that, described notification unit is used for by the physical layer signaling notification terminal in the transmission technology of using for the transfer resource of this terminal distribution, be specially: notification unit is used for indicating the transmission technology of using on each sub-transmission resource block of the transfer resource that distributes by physical layer signaling, and this physical layer signaling sent to terminal, with the corresponding transmission technology of using on each sub-transmission resource block of notification terminal.
16. network equipment according to claim 15 is characterized in that, described physical layer signaling is indicated the transmission technology of using on each sub-transmission resource block by the bit corresponding with sub-transfer resource number of blocks.
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