Embodiment
Basic thought of the present invention is: system disposes combined information according to TTI, and conventional distributed resource is divided into distributed resource group, in the zone of each distributed resource group, carries out the resource mapping according to the corresponding resource blocks type.
Wherein, said TTI configuration combined information can obtain different TTI configuration combinations by factors such as the dispatching requirement decision of base station according to the sub-frame of uplink number and the customer service of configuration; Further, resulting TTI configuration combined information can send to subordinate terminal through broadcast mode by the base station.
Among the present invention, the base station can be carried out the scheduling of subframe tandem type according to user's QoS (QoS) requirement for big data quantity and the not high service-user of delay requirement, that is: comprise greater than a sub-frame in a TTI.Distribute for different subframe tandem type scheduled resources; Adopt the logical, distributed Resource Block design under the different TTI configuration; Be called subframe cascade distributed resource blocks again, the structure of every kind of subframe cascade distributed resource blocks adapts to the resource allocation under the corresponding scheduling mode respectively.
The present invention is in the ascending resource mapping of ofdm system, and the base station can be provided with different TTI according to the configuration of system uplink number of sub-frames, the requirement of user QoS and user's channel condition.For example: in the system, a radio frames is made up of eight sub-frame, and sub-frame of uplink generally can dispose 1~4 sub-frame, and so, the number of sub frames that TTI comprised just can be 1~4.Carry out the TTI configuration according to dispatching requirement of user in the system, can there be a plurality of different TTI configurations simultaneously in a system, as: TTI is configured to the combination of a sub-frame and two sub-frame respectively; Or the combination of sub-frame and three sub-frame; Or the combination of sub-frame and four sub-frame; Or the combination of a sub-frame, two sub-frame and four sub-frame; Or TTI is merely combination of a kind of number of sub-frames or the like.
In the conventional distributed resource on each subframe; Can be that granularity is carried out the rearrangement of tile level subcarrier with certain constant series according to the tile that constitutes conventional distributed resource blocks; Accomplish the sub-channelizing process of conventional distributed resource on each subframe, the conventional distributed resource sub-channelizing process in the TTI on each sub-frame can be identical or different.Wherein, the size of a tile can be N OFDM symbols of 6 number of sub-carrier *, and N is the symbolic number in the sub-frame, and general, N is 6.
Among the present invention, the base station can further be divided into conventional distributed resource the distributed resource group of corresponding TTI configuration according to different TTI configurations.In each distributed resource group; According to this distributed resource group corresponding TTI configuration and corresponding resource blocks structure; With TTI configuration down the tile in each subframe carry out resource with displacement and/or frequency hopping mode with logical resource block and shine upon, that is: shine upon according to the tile constant series and the logical resource block of each subframe.When the constant series of each subframe are identical, then also need further frequency hopping mode, as: in distributed resource group, tile is carried out cyclic shift, carry out the resource mapping with logical resource block more afterwards.
The handling process of Radio Resource sub-channelizing of the present invention and mapping method one embodiment, as shown in Figure 1, may further comprise the steps:
Step 101: the base station is unit with tile with the resource in the conventional distributed resource group in each sub-frame of uplink, in the frequency band of this resource, replaces rearrangement;
Here, the displacement of the conventional distributed resource in each sub-frame of uplink rearrangement mode can be identical; Also can be and difference according to subframe numbers.Wherein, displacement rearrangement mode can adopt prior art, resets by certain sequence or certain mode or certain rule.
Step 102:, the conventional distributed resource after resetting in each sub-frame of uplink is divided into the distributed resource group of corresponding each TTI configuration according to the TTI configuration combined information of configuration;
Here; Said TTI configuration combined information can comprise: the number of TTI configuration categories and TTI are that a sub-frame and TTI are the configuration compound mode of N sub-frame; The value of N is smaller or equal to the number of sub-frame of uplink in the radio frames, and typical value is 2 or 3 or 4.For example: TTI configuration combination packets of information draws together that TTI configuration categories number is 2, the configuration compound mode is that TTI is that a sub-frame and TTI are the combination of three sub-frame.Further, TTI configuration combined information can also comprise that the resource of each TTI configuration compound mode occupies ratio, such as: TTI is that sub-frame configuration resource down accounts for 60%, and TTI is that the resource under three sub-frame dispose accounts for 40%.
Occupy ratio according to corresponding resource under the TTI configuration compound mode in the said TTI configuration combined information and each TTI configuration; Can the conventional distributed resource after resetting in each sub-frame of uplink be divided into corresponding distributed resource group, and confirm the size of each distributed resource group.Concrete, can the TTI that comprise different number subframes be disposed pairing resource respectively as different distributions formula resource subset, as: with TTI is that sub-frame configuration resource is down organized as distributed resource; TTI is that the resource under the configuration of two sub-frame is organized as distributed resource; TTI is that the resource under the configuration of three sub-frame is organized as distributed resource; TTI is that the resource under the configuration of four sub-frame is organized as distributed resource.
Step 103: in each distributed resource group,, LDRU is mapped on the tile of corresponding each subframe in this distributed resource group frequency band with displacement and/or frequency hopping mode according to the LDRU structure under the corresponding TTI configuration of this distributed resource group;
Here, in TTI is pairing distributed resource of the configuration group of a sub-frame, a LDRU is mapped on m the tile of said subframe in this distributed resource group frequency band, the typical value of m can be 3; M tile discrete distribution on whole frequency band;
In TTI is pairing distributed resource of the configuration group of two sub-frame, a LDRU is mapped on m the tile of said two sub-frame in this distributed resource group frequency band, the typical value of m can be 1 or 2; According to displacement and/or frequency hopping mode LDRU is mapped to the tile on said two sub-frame, a said m tile is evenly distributed on said two sub-frame;
In TTI is pairing distributed resource of the configuration group of three sub-frame, a LDRU is mapped on m the tile of said three sub-frame in this distributed resource group frequency band, the typical value of m can be 3; According to displacement and/or frequency hopping mode LDRU is mapped to the tile on said three sub-frame, a said m tile is evenly distributed on said three sub-frame;
In TTI is pairing distributed resource of the configuration group of four sub-frame, a LDRU is mapped on m the tile of said four sub-frame in this distributed resource group frequency band, the typical value of m can be 4; According to displacement and/or frequency hopping mode LDRU is mapped to the tile on said four sub-frame; A said m tile is evenly distributed on said four sub-frame.
Wherein, said tile is for constituting the base unit of a LDRU; Said LDRU is that TTI comprises the LDRU under a plurality of sub-frame configuration.
For the TTI configuration combined information that obtains disposing, before step 101, the inventive method can further include:
Step 100: current TTI configuration combination is confirmed in the base station, and determined TTI configuration combined information is sent to self all terminal of subordinate.
Here, the base station can be made up multiple TTI configuration according to the configuration of sub-frame of uplink number and the dispatching requirement of customer service, and confirms as the TTI configuration combination of current system configuration.Wherein, the configuration of sub-frame of uplink number is meant has for what sub-frame of uplink in the current wireless frame, be generally 1~4 sub-frame; The dispatching requirement of customer service can be professional real-time requirement, as: business be real-time or professional be non real-time.
Determined TTI configuration combined information can be sent to terminal broadcast through the form of system configuration control information in the base station.
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further.
The size of supposing the tile of formation LDRU is 6 number of sub-carrier * subframe internal symbol numbers, and for a conventional subframe, the symbolic number in the subframe is 6, and the size of tile is exactly 6*6 so.
Embodiment one:
The sub-frame of uplink number of supposing a radio frames is two, and system is provided with two kinds of TTI configurations, and being respectively TTI is a sub-frame and two sub-frame.A plurality of tile that a LDRU is formed in different TTI configuration down according to sub-channelizing and respective resources block structure in discrete distribution physically, as shown in Figure 2.Wherein, TTI is that the LDRU of a sub-frame is made up of three tile; TTI is that the LDRU of two sub-frame is made up of two tile, and the pane that each oblique line is filled is represented a tile.Fig. 2's is subframe laterally, and each subframe has 6 symbols, vertically is subcarrier.Fig. 2 is merely sketch map, and three tile when TTI is a sub-frame, two tile when TTI is two sub-frame do not represent continuously or uniformly-spaced.
The base station is divided into distributed resource group 1 and distributed resource group 2 according to the system configuration control information with conventional distributed resource.Wherein, said system configuration control information comprises: the information such as size of the number of sub frames of TTI and corresponding distributed resource group.
In distributed resource group 1, TTI is configured to a sub-frame, and a LDRU in this distributed resource group is mapped on three tile on this subframe according to the substitute mode of tile, and is as shown in Figure 3.Among Fig. 3, horizontal line is filled or a blank pane of filling is a tile who forms Resource Block.Specifically how be mapped to and adopt on the subframe and the similar mode of prior art, repeat no more here through the tile substitute mode.
In distributed resource group 2, TTI is configured to two sub-frame, and a LDRU in this distributed resource group is mapped to respectively on the tile on each subframe according to displacement and/or frequency hopping (hopping) mode of tile, and is as shown in Figure 3.Among Fig. 3, in the zone of distributed resource group 2, two panes that identical patterns is filled represent to form two tile of a LDRU, that is to say that a LDRU is mapped to respectively on two sub-frame, tile of mapping on each subframe.Wherein, said frequency hopping mode can be that the tile after the displacement is shifted by frame number, and is general, if the constant series that each subframe adopts are identical, then needs further to adopt the frequency hopping mode.
Embodiment two:
The sub-frame of uplink number of supposing a radio frames is two, and system is provided with two kinds of TTI configurations, and being respectively TTI is a sub-frame and two sub-frame.A plurality of tile that a LDRU is formed in different TTI configuration down according to sub-channelizing and respective resources block structure in discrete distribution physically, as shown in Figure 4.Wherein, TTI is that the LDRU of a sub-frame is made up of three tile; TTI is that the LDRU of two sub-frame is made up of four tile, and the pane that each oblique line is filled is represented a tile.Fig. 4's is subframe laterally, and each subframe has 6 symbols, vertically is subcarrier.Fig. 4 is merely sketch map, and three tile when TTI is a sub-frame, four tile when TTI is two sub-frame do not represent continuously or uniformly-spaced.
The base station is divided into distributed resource group 1 and distributed resource group 2 according to the system configuration control information with conventional distributed resource.
In distributed resource group 1, TTI is configured to a sub-frame, and a LDRU in this distributed resource group is mapped on three tile on this subframe according to the substitute mode of tile, and is as shown in Figure 5.Among Fig. 5, horizontal line is filled or a blank pane of filling is a tile who forms Resource Block.
In distributed resource group 2; TTI is configured to two sub-frame, and a LDRU in this distributed resource group is mapped to respectively on two tile on each subframe according to displacement and/or the frequency hopping mode of tile, and is as shown in Figure 5; The pane that oblique line is filled representes to form four tile of a LDRU; That is to say that a LDRU is mapped to respectively on two sub-frame, two tile of mapping on each subframe.Wherein, said frequency hopping mode can be that the tile after the displacement is shifted by frame number, and is general, if the constant series that each subframe adopts are identical, then needs further to adopt the frequency hopping mode.
Embodiment three:
The sub-frame of uplink number of supposing a radio frames is three, and system is provided with two kinds of TTI configurations, and being respectively TTI is a sub-frame and three sub-frame.A plurality of tile that a LDRU is formed in different TTI configuration down according to sub-channelizing and respective resources block structure in discrete distribution physically, as shown in Figure 6.Wherein, TTI is that the LDRU of a sub-frame is made up of three tile; TTI is that the LDRU of three sub-frame is made up of three tile, and the pane that each oblique line is filled is represented a tile.Fig. 6's is subframe laterally, and each subframe has 6 symbols, vertically is subcarrier.Fig. 6 is merely sketch map, and three tile when TTI is a sub-frame, three tile when TTI is three sub-frame do not represent continuously or uniformly-spaced.
The base station is divided into distributed resource group 1 and distributed resource group 2 according to the system configuration control information with conventional distributed resource.
In distributed resource group 1, TTI is configured to a sub-frame, and a LDRU in this distributed resource group is mapped on three tile on this subframe according to the substitute mode of tile, and is as shown in Figure 7.Among Fig. 7, oblique line is filled or a blank pane of filling is a tile who forms Resource Block.
In distributed resource group 2, TTI is configured to three sub-frame, and a LDRU in this distributed resource group is mapped to respectively on the tile on each subframe according to displacement and/or the frequency hopping mode of tile, and is as shown in Figure 7.Among Fig. 7, in the zone of distributed resource group 2, three panes that identical patterns is filled represent to form three tile of a LDRU, that is to say that a LDRU is mapped to respectively on three sub-frame, tile of mapping on each subframe.Wherein, said frequency hopping mode can be that the tile after the displacement is shifted by frame number, and is general, if the constant series that each subframe adopts are identical, then needs further to adopt the frequency hopping mode.
Embodiment four:
The sub-frame of uplink number of supposing a radio frames is four, and system is provided with two kinds of TTI configurations, and being respectively TTI is a sub-frame and two sub-frame.A plurality of tile that a LDRU is formed in different TTI configuration down according to sub-channelizing and respective resources block structure in discrete distribution physically, as shown in Figure 8.Wherein, TTI is that the LDRU of a sub-frame is made up of three tile; TTI is that the LDRU of two sub-frame is made up of two tile, and the pane that each oblique line is filled is represented a tile.Fig. 8's is subframe laterally, and each subframe has 6 symbols, vertically is subcarrier.Fig. 8 is merely sketch map, and three tile when TTI is a sub-frame, two tile when TTI is two sub-frame do not represent continuously or uniformly-spaced.
The base station is divided into distributed resource group 1 and distributed resource group 2 according to the system configuration control information with conventional distributed resource.
In distributed resource group 1, TTI is configured to a sub-frame, and a LDRU in this distributed resource group is mapped on three tile on this subframe according to the substitute mode of tile, and is as shown in Figure 9.Among Fig. 9, oblique line is filled or a blank pane of filling is a tile who forms Resource Block.
In distributed resource group 2, TTI is configured to two sub-frame, and a LDRU in this distributed resource group is mapped to respectively on the tile on each subframe according to displacement and/or the frequency hopping mode of tile, and is as shown in Figure 9.Among Fig. 9, in the zone of distributed resource group 2, two panes that identical patterns is filled represent to form two tile of a LDRU, that is to say that a LDRU is mapped to respectively on two sub-frame, tile of mapping on each subframe.Wherein, said frequency hopping mode can be that the tile after the displacement is shifted by frame number, and is general, if the constant series that each subframe adopts are identical, then needs further to adopt the frequency hopping mode.
Embodiment five:
The sub-frame of uplink number of supposing a radio frames is four, and system is provided with two kinds of TTI configurations, and being respectively TTI is a sub-frame and four sub-frame.A plurality of tile that a LDRU is formed in different TTI configuration down according to sub-channelizing and respective resources block structure in discrete distribution physically, shown in figure 10.Wherein, TTI is that the LDRU of a sub-frame is made up of three tile; TTI is that the LDRU of four sub-frame is made up of four tile, and the pane that each oblique line is filled is represented a tile.Figure 10's is subframe laterally, and each subframe has 6 symbols, vertically is subcarrier.Figure 10 is merely sketch map, and three tile when TTI is a sub-frame, four tile when TTI is four sub-frame do not represent continuously or uniformly-spaced.
The base station is divided into distributed resource group 1 and distributed resource group 2 according to the system configuration control information with conventional distributed resource.
In distributed resource group 1, TTI is configured to a sub-frame, and a LDRU in this distributed resource group is mapped on three tile on this subframe according to the substitute mode of tile, and is shown in figure 11.Among Figure 11, oblique line is filled or a blank pane of filling is a tile who forms Resource Block.
In distributed resource group 2, TTI is configured to four sub-frame, and a LDRU in this distributed resource group is mapped to respectively on the tile on each subframe according to displacement and/or the frequency hopping mode of tile, and is shown in figure 11.Among Figure 11, in the zone of distributed resource group 2, four panes that identical patterns is filled represent to form four tile of a LDRU, that is to say that a LDRU is mapped to respectively on four sub-frame, tile of mapping on each subframe.Wherein, said frequency hopping mode can be that the tile after the displacement is shifted by frame number, and is general, if the constant series that each subframe adopts are identical, then needs further to adopt the frequency hopping mode.
Embodiment six:
The sub-frame of uplink number of supposing a radio frames is four, and system is provided with three kinds of TTI configurations, and being respectively TTI is a sub-frame, two sub-frame and four sub-frame.A plurality of tile that a LDRU is formed in different TTI configuration down according to sub-channelizing and respective resources block structure in discrete distribution physically, shown in figure 12.Wherein, TTI is that the LDRU of a sub-frame is made up of three tile; TTI is that the LDRU of two sub-frame is made up of two tile; TTI is that the LDRU of four sub-frame is made up of four tile, and the pane that each oblique line is filled is represented a tile.Figure 12's is subframe laterally, and each subframe has 6 symbols, vertically is subcarrier.Figure 12 is merely sketch map, and three tile when TTI is a sub-frame, two tile when TTI is two sub-frame, four tile when TTI is four sub-frame do not represent continuously or uniformly-spaced.
The base station is divided into distributed resource group 1, distributed resource group 2 and distributed resource group 3 according to the system configuration control information with conventional distributed resource.
In distributed resource group 1, TTI is configured to a sub-frame, and a LDRU in this distributed resource group is mapped on three tile on this subframe according to the substitute mode of tile, and is shown in figure 13.Among Figure 13, oblique line is filled or a blank pane of filling is a tile who forms Resource Block.
In distributed resource group 2, TTI is configured to two sub-frame, and a LDRU in this distributed resource group is mapped to respectively on the tile on each subframe according to displacement and/or the frequency hopping mode of tile, and is shown in figure 13.Among Figure 13, in the zone of distributed resource group 2, four panes that identical patterns is filled represent to form four tile of two LDRU, that is to say that each LDRU is mapped to respectively on two sub-frame, tile of mapping on each subframe.Wherein, said frequency hopping mode can be that the tile after the displacement is shifted by frame number, and is general, if the constant series that each subframe adopts are identical, then needs further to adopt the frequency hopping mode.
In distributed resource group 3, TTI is configured to four sub-frame, and a LDRU in this distributed resource group is mapped to respectively on the tile on each subframe according to displacement and/or the frequency hopping mode of tile, and is shown in figure 13.Among Figure 13, in the zone of distributed resource group 3, four panes that identical patterns is filled represent to form four tile of a LDRU, that is to say that a LDRU is mapped to respectively on four sub-frame, tile of mapping on each subframe.Wherein, said frequency hopping mode can be that the tile after the displacement is shifted by frame number, and is general, if the constant series that each subframe adopts are identical, then needs further to adopt the frequency hopping mode.
Embodiment seven:
The sub-frame of uplink number of supposing a radio frames is two, and system is provided with two kinds of TTI configurations, and being respectively TTI is a sub-frame and two sub-frame.A plurality of tile that a LDRU is formed in different TTI configuration down according to sub-channelizing and respective resources block structure in discrete distribution physically, shown in figure 14.Wherein, TTI is that the LDRU of a sub-frame is made up of three tile; TTI is that the LDRU of two sub-frame is made up of three tile; The pane that each oblique line is filled is represented a tile.Figure 14's is subframe laterally, and each subframe has 6 symbols, vertically is subcarrier.Figure 14 is merely sketch map, and three tile when TTI is a sub-frame, three tile when TTI is two sub-frame do not represent continuously or uniformly-spaced.
The base station is divided into distributed resource group 1 and distributed resource group 2 according to the system configuration control information with conventional distributed resource.
In distributed resource group 1, TTI is configured to a sub-frame, and a LDRU in this distributed resource group is mapped on three tile on this subframe according to the substitute mode of tile, and is shown in figure 15.Among Figure 15, horizontal line is filled or a blank pane of filling is a tile who forms Resource Block.
In distributed resource group 2, TTI is configured to two sub-frame, and a LDRU in this distributed resource group is mapped to respectively on the tile on each subframe according to displacement and/or the frequency hopping mode of tile, and is shown in figure 15.Among Figure 15, in the zone of distributed resource group 2, three panes that identical patterns is filled represent to form three tile of a LDRU, that is to say that each LDRU is mapped to respectively on two sub-frame, shine upon one or two tile on each subframe respectively.Wherein, said frequency hopping mode can be that the tile after the displacement is shifted by frame number, and is general, if the constant series that each subframe adopts are identical, then needs further to adopt the frequency hopping mode.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.