CN103152083A - Method and equipment for selecting transmission mode - Google Patents
Method and equipment for selecting transmission mode Download PDFInfo
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- CN103152083A CN103152083A CN2013100589933A CN201310058993A CN103152083A CN 103152083 A CN103152083 A CN 103152083A CN 2013100589933 A CN2013100589933 A CN 2013100589933A CN 201310058993 A CN201310058993 A CN 201310058993A CN 103152083 A CN103152083 A CN 103152083A
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Abstract
The invention discloses a method and equipment for selecting a transmission mode. The method comprises the following steps of: determining the SRS (Sounding Reference Signal) resource condition, the double-transmission condition in the mode switching period and the frequency spectrum efficiency condition of the double-transmission; and selecting a transmission mode 3 or transmission mode 8 as a transmission mode by using the SRS resource condition, the double-transmission condition in the mode switching period and the frequency spectrum efficiency condition of the double-transmission. According to the embodiment of the invention, the transmission mode 3 or transmission mode 8 can be selected as the transmission mode on the basis of the SRS resource condition, the double-transmission condition in the mode switching period and the frequency spectrum efficiency condition of the double-transmission, so that a speed measurement algorithm depending on terminal equipment is avoided; and in addition, an optimal transmission mode is enabled to be timely selected by the system for transmission, optimal system performances are obtained and the lower complexity is realized.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of system of selection and equipment of transmission mode.
Background technology
Multi-antenna technology can take full advantage of space resources, increases the effective bandwidth of wireless channel, greatly promotes the capacity of communication system, and has been widely used in various communication systems.In order to satisfy LTE(Long Term Evolution, Long Term Evolution) demand of system aspect high data rate and high power system capacity, the LTE system supports the multiple MIMO(Multi-input Multi-output of descending application, multiple-input and multiple-output) mode comprises transmission diversity, Open-Loop Spatial Multiplexing, Closed-Loop Spatial Multiplexing and wave beam forming etc.; In addition, for different channels and business need, the application scenarios of every kind of MIMO technology is not identical, therefore, for the situation of change of adaptive channel fast, introduced the concept of switching between pattern in the LTE system, i.e. the different MIMO mode of selection adaptive according to the situation of change of channel.
In the LTE system, because the descending basic configuration of MIMO technology is 2 antenna ports, thus between pattern handoff algorithms only for 2 antenna ports, and due to following reason, for the transmission mode 1-transmission mode 8 that the LTE system supports, between pattern, handoff algorithms is only considered transmission mode 3 and transmission mode 8.
1, transmission mode 1 is applicable to the situation that base station equipment has an antenna port, only is used for troubleshooting.
2, transmission mode 2DCI(Downlink Control Information, Downlink Control Information) format(form) the transmission diversity mode of 1A is identical with transmission mode 3, only there are the difference of signaling consumption in DC1 foramt1 and DCI format1A, switch for accurate pattern and do not consider transmission mode 2.
3, for two antenna ports, the closed loop SDM(Space Division Multiplexing of the rank(order)=2, space division multiplexing) performance is better than open loop SDM performance when signal to noise ratio is low, closed loop SDM performance performance when high s/n ratio is good not as open loop SDM performance on the contrary, and the general transmission mode that mainly adopts rank=1 under low signal-to-noise ratio, therefore, transmission mode 4 is not adopted in suggestion under 2 antenna ports.
4, transmission mode 5 is MIMO schemes of closed loop, needs the terminal equipment feeding back precoding matrix, is mainly used in the more scene of number of users in the residential quarter, transmits a plurality of users' data flow by the isolation on user's space; There are two kinds of MIMO modes (multiuser MIMO and transmission diversity) in transmission mode 5, require in use base station equipment to adopt the multi-user to match algorithm, if two users' of pairing channel orthogonality is relatively poor, especially under two antenna ports, only have 4 pre-coding matrixes this moment, be difficult to guarantee user's orthogonality, inter-user interference is serious, user's receptivity sharply worsens, and therefore transmission mode 5 is not adopted in suggestion.
5, comprise transmission diversity and rank1 closed loop SDM in transmission mode 6, there is obvious figuration gain in the relative rank1 closed loop of single current wave beam forming performance SDM, and therefore transmission mode 6 is not adopted in suggestion.
6, transmission mode 7 single current wave beam formings are the same with transmission mode 8 single current wave beam forming implementations, only there is signaling difference, pilot-frequency expense is identical, unique difference is that the pilot tone pattern is different, the time domain density of transmission mode 8 pilot tone patterns is lower than transmission mode 7, therefore transmission mode 8 single currents and transmission mode 7 single currents can think that in terminal equipment in the low speed situation, performance is similar, the performance of at a high speed lower transmission mode 8 single currents may be worse than transmission mode 7, if but terminal equipment adopts better channel estimation method, may be also similar in both performances under high speed; And lower general with transmission mode 3 open-loop transmission at a high speed, therefore transmission mode 7 is not adopted in suggestion.
In sum, between pattern, handoff algorithms is only considered transmission mode 3 and transmission mode 8; Transmission mode 8 is closed-loop MIMO schemes, comprises single dual-stream beamforming, and energy exact matching channel changes in the situation that the figuration vector can be followed the tracks of upper signal channel, can obtain optimum system performance; Transmission mode 3 is open loop MIMO schemes, comprises transmission diversity and Open-Loop Spatial Multiplexing; Open loop does not need to feed back pre-matrix, does not exist feedback delay to the availability influence of feedback content, is mainly used at a high speed and the inadequate scene of uplink feedback resource.
In prior art, switch between pattern can take up feedback resources whether fully and speed of terminal equipment as judgment condition, if speed adopts transmission mode 8 lower than necessarily thresholding and uplink feedback resource are abundant; If speed is insufficient higher than certain thresholding or uplink feedback resource, adopt transmission mode 3.
In realizing process of the present invention, the inventor finds to exist at least in prior art following problem:
Technique scheme need to depend on the Computational Method of Velocity Measurement to terminal equipment, when Computational Method of Velocity Measurement is undesirable, will affects the accuracy of transmission mode judgement, thereby can not obtain best systematic function.
Summary of the invention
The embodiment of the present invention provides a kind of system of selection and equipment of transmission mode, avoiding depending on the Computational Method of Velocity Measurement to terminal equipment, thereby obtains best systematic function.In order to achieve the above object:
The embodiment of the present invention provides a kind of system of selection of transmission mode, and the method comprises:
Determine the stream transmission situation in detection reference signal SRS resource situation, pattern switching cycle, the spectrum efficiency situation of stream transmission;
Utilize the spectrum efficiency situation of the stream transmission situation in described SRS resource situation, described pattern switching cycle, described stream transmission to select transmission mode to be transmission mode 3 or transmission mode 8.
The embodiment of the present invention provides a kind of selection equipment of transmission mode, and this equipment comprises:
Determination module is used for determining the stream transmission situation in detection reference signal SRS resource situation, pattern switching cycle, the spectrum efficiency situation of stream transmission;
Select module, be used for utilizing the stream transmission situation in described SRS resource situation, pattern switching cycle, the spectrum efficiency situation of stream transmission to select transmission mode to be transmission mode 3 or transmission mode 8.
Compared with prior art, the embodiment of the present invention has the following advantages at least: in the embodiment of the present invention, can be based on SRS(Sounding Reference Signal, detection reference signal) the spectrum efficiency situation selection transmission mode of the stream transmission situation in resource situation, pattern switching cycle, stream transmission is transmission mode 3 or transmission mode 8, avoid depending on the Computational Method of Velocity Measurement to terminal equipment, and the system that can guarantee in time selects optimum transmission mode to transmit, obtain best systematic function, implementation complexity is lower.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the system of selection schematic flow sheet of a kind of transmission mode of providing of the embodiment of the present invention one;
Fig. 2 is the system of selection schematic flow sheet of a kind of transmission mode of providing of the embodiment of the present invention two;
Fig. 3 is the system of selection schematic flow sheet of a kind of transmission mode of providing of the embodiment of the present invention three;
Fig. 4 is the selection device structure schematic diagram of a kind of transmission mode of providing of the embodiment of the present invention four.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment one
The embodiment of the present invention one provides a kind of system of selection of transmission mode, and the application scenarios of the method includes but not limited to the LTE system, and as shown in Figure 1, the method comprises the following steps:
In the embodiment of the present invention, utilize the stream transmission situation in SRS resource situation, pattern switching cycle, the spectrum efficiency situation of stream transmission to select transmission mode to be transmission mode 3 or transmission mode 8, specifically include but not limited to following mode:
when the SRS resource situation is that the SRS resource satisfies specific needs (being that the SRS resource is abundant), and the stream transmission situation in the pattern switching cycle be account for transmission total time the time of transmission double fluid in the pattern switching cycle ratio greater than the preset ratio thresholding (in the pattern switching cycle, the time of transmission double fluid accounts for the ratio of transmission total time greater than 50%, be to have the time over half to be used for the transmission double fluid in the pattern switching cycle), and (it can be set to the spectrum efficiency situation of stream transmission: in the time of near the spectral efficiency values of correspondence peak rate) less than default efficient thresholding for double-current spectrum efficiency, selecting transmission mode is transmission mode 8,
Perhaps, when the SRS resource situation is that the SRS resource satisfies specific needs (being that the SRS resource is abundant), and the stream transmission situation in the pattern switching cycle is the time of transmission double fluid in the pattern switching cycle to account for the ratio of transmission total time to be not more than the preset ratio thresholding (in the pattern switching cycle, the time of transmission double fluid accounts for the ratio of transmission total time and is not more than 50%, be to have the time over half to be used for the transmission single current in the pattern switching cycle) time, selecting transmission mode is transmission mode 8;
Otherwise selecting transmission mode is transmission mode 3.
Situation one, when current transmission mode is transmission mode 3, utilize the stream transmission situation in SRS resource situation, pattern switching cycle, the spectrum efficiency situation of stream transmission to select transmission mode to be transmission mode 3 or transmission mode 8, specifically include but not limited to: judge whether the SRS resource satisfies specific needs; If discontented toe is decided demand, keeping transmission mode is transmission mode 3; If satisfy specific needs, in the judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding; If be not more than the preset ratio thresholding, transmission mode is switched to transmission mode 8 by transmission mode 3; If greater than the preset ratio thresholding, whether the spectrum efficiency of judgement double fluid is less than default efficient thresholding; If be not less than default efficient thresholding, keeping transmission mode is transmission mode 3; If less than default efficient thresholding, transmission mode is switched to transmission mode 8 by transmission mode 3.
Situation two, when current transmission mode is transmission mode 8, utilize the stream transmission situation in SRS resource situation, pattern switching cycle, the spectrum efficiency situation of stream transmission to select transmission mode to be transmission mode 3 or transmission mode 8, specifically include but not limited to: judge whether the SRS resource satisfies specific needs; If discontented toe is decided demand, transmission mode is switched to transmission mode 3 by transmission mode 8; If satisfy specific needs, in the judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding; If be not more than the preset ratio thresholding, keeping transmission mode is transmission mode 8; If greater than the preset ratio thresholding, whether the spectrum efficiency of judgement double fluid is less than default efficient thresholding; If be not less than default efficient thresholding, transmission mode switched to transmission mode 3 by transmission mode 8; If less than default efficient thresholding, keeping transmission mode is transmission mode 8.
In the embodiment of the present invention, judge whether the SRS resource satisfies specific needs, specifically include but not limited to:, calculate this SRS and report moment figuration vector and last SRS to report the correlation between the figuration vector constantly under the cycle under the cycle when SRS sends SRS under the cycle as the user; If this correlation is not less than default correlation thresholding (carrying out equipment according to the practical experience value), determine that the SRS resource satisfies specific needs; If this correlation less than default correlation thresholding, is determined the discontented toe of SRS resource and is decided demand.
In multi-user's situation, support more users to adopt the beamforming transmission mode to send SRS in order to make system, during the cycle, can consider that the initial SRS cycle of configure user is more than 20ms at configuration SRS; When the user sends SRS under this cycle, calculate this SRS and report moment figuration vector SRS last time to report the correlation between the figuration vector constantly under the cycle under the cycle; If this correlation is not less than default correlation thresholding, think that this user SRS resource is abundant, the figuration vector can be followed the tracks of upper signal channel and change, and namely the SRS resource satisfies specific needs; If this correlation less than default correlation thresholding, thinks that this user SRS resource is insufficient, the figuration vector can't be followed the tracks of upper signal channel and change, and namely the discontented toe of SRS resource is decided demand.
In the embodiment of the present invention, for the judgement that makes correlation more accurate, can also carry out temporal average in the pattern switching cycle to the correlation of statistics, and utilize the correlation after average to determine whether the SRS resource satisfies specific needs, then utilize and determine that result selects corresponding transmission mode.
In the embodiment of the present invention, decide demand (the SRS resource be'ss insufficient) user for the discontented toe of SRS resource, if user's dispatching priority is high, and system spare SRS resource is greater than default resource thresholding (being that system has enough SRS resources can support the SRS cycle that its configuration is shorter), can reduce the corresponding SRS cycle, be this shorter SRS cycle of user's configuration; Satisfy the user of specific needs (the SRS resource is abundant) for the SRS resource, if the relativity of time domain of figuration vector high especially (as greater than 0.9) can improve the corresponding SRS cycle, be the long SRS cycle of this user's configuration.
In the embodiment of the present invention, before carrying out above-mentioned steps 101 and 102, also can determine user type (user type is specified type user or non-designated type of user), if user type is non-designated type of user, when the business datum amount was not more than preset data amount thresholding, selecting transmission mode was the transmission diversity mode of transmission mode 2DCI format1; When the business datum amount during greater than preset data amount thresholding, execution in step 101 and step 102; If user type is the specified type user, execution in step 101 and step 102.
Concrete, when user type is non-designated type of user, when the business datum amount is not more than preset data amount thresholding, select transmission mode be transmission mode 2DCI format1 transmission diversity mode former because:
On the one hand, pattern is switched can increase CQI(Channel Quality Indicator, the channel quality indication) feedback and SRS resource overhead, and may cause the DCI shortage of resources, and increase the weight of MAC(Media Access Control, medium access control) burden of controlling and dispatching strengthens RRC(Radio Resource Control, and Radio Resource is controlled) signaling consumption.On the other hand, MIMO mode by definite current optimums such as channels, report the MAC layer, select suitable CCE(Control Channel Element according to the DCI form of correspondence and CQI, the control channel unit) the polymerization grade, determine PDCCH(Physical Downlink Control Channel in user's dedicated search space, Physical Downlink Control Channel) position, if the PDCCH inadequate resource adopts the transmission diversity under this pattern, until obtain the PDCCH resource.Because the distribution of PDCCH resource is undertaken by User Priority equally, current subframe scheduling does not find the user of appropriate resources, can along with the raising of User Priority, promote gradually the priority of the selection of its PDCCH resource.
Based on this, heavier when system loading for the less and channel of traffic carrying capacity user preferably, the situation that the user always can not transmitted according to optimal MIMO mode may appear; Therefore, if user type is non-designated type of user, the business datum amount is not more than preset data amount thresholding, considers that the transmission diversity mode of transmission mode 2DCI format1 is transmitted, to save feedback overhead, SRS expense, signaling consumption.
Wherein, above-mentioned specified type user specifically includes but not limited to VIP(Very Important Person, VIP) user; In the network of current operator, for the certain user, need to give the dynamics of guarantee more preferably, to guarantee that these users can obtain better user and experience, these users are referred to as VIP user, experience if VIP user can not obtain good user, will cause disadvantageous negative effect to the operation ability of operator, brand building popularization etc.
In sum, in the embodiment of the present invention, can select transmission mode based on the spectrum efficiency situation of the stream transmission situation in SRS resource situation, pattern switching cycle, stream transmission is transmission mode 3 or transmission mode 8, avoid depending on the Computational Method of Velocity Measurement to terminal equipment, and the system that can guarantee in time selects optimum transmission mode to transmit, obtain best systematic function, implementation complexity is lower.
Embodiment two
The embodiment of the present invention two provides a kind of system of selection of transmission mode, and when current transmission mode was transmission mode 3, as shown in Figure 2, the method comprised the following steps:
In step 202, judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding; If be not more than the preset ratio thresholding, execution in step 205; If greater than the preset ratio thresholding, execution in step 203.
In the embodiment of the present invention, judge whether the SRS resource satisfies specific needs, specifically include but not limited to:, calculate this SRS and report moment figuration vector and last SRS to report the correlation between the figuration vector constantly under the cycle under the cycle when SRS sends SRS under the cycle as the user; If this correlation is not less than default correlation thresholding (carrying out equipment according to the practical experience value), determine that the SRS resource satisfies specific needs; If this correlation less than default correlation thresholding, is determined the discontented toe of SRS resource and is decided demand.
In multi-user's situation, support more users to adopt the beamforming transmission mode to send SRS in order to make system, during the cycle, can consider that the initial SRS cycle of configure user is more than 20ms at configuration SRS; When the user sends SRS under this cycle, calculate this SRS and report moment figuration vector SRS last time to report the correlation between the figuration vector constantly under the cycle under the cycle; If this correlation is not less than default correlation thresholding, think that this user SRS resource is abundant, the figuration vector can be followed the tracks of upper signal channel and change, and namely the SRS resource satisfies specific needs; If this correlation less than default correlation thresholding, thinks that this user SRS resource is insufficient, the figuration vector can't be followed the tracks of upper signal channel and change, and namely the discontented toe of SRS resource is decided demand.
In the embodiment of the present invention, for the judgement that makes correlation more accurate, can also carry out temporal average in the pattern switching cycle to the correlation of statistics, and utilize the correlation after average to determine whether the SRS resource satisfies specific needs, then utilize and determine that result selects corresponding transmission mode.
In the embodiment of the present invention, decide demand (the SRS resource be'ss insufficient) user for the discontented toe of SRS resource, if user's dispatching priority is high, and system spare SRS resource is greater than default resource thresholding (being that system has enough SRS resources can support the SRS cycle that its configuration is shorter), can reduce the corresponding SRS cycle, be this shorter SRS cycle of user's configuration; Satisfy the user of specific needs (the SRS resource is abundant) for the SRS resource, if the relativity of time domain of figuration vector high especially (as greater than 0.9) can improve the corresponding SRS cycle, be the long SRS cycle of this user's configuration.
In the embodiment of the present invention, before carrying out above-mentioned steps 201-205, can also determine user type (user type is specified type user or non-designated type of user), if user type is non-designated type of user, when the business datum amount was not more than preset data amount thresholding, selecting transmission mode was the transmission diversity mode of transmission mode 2DCI format1; When the business datum amount during greater than preset data amount thresholding, execution in step 201-205; If user type is the specified type user, execution in step 201-205.
In sum, in the embodiment of the present invention, can select transmission mode based on the spectrum efficiency situation of the stream transmission situation in SRS resource situation, pattern switching cycle, stream transmission is transmission mode 3 or transmission mode 8, avoid depending on the Computational Method of Velocity Measurement to terminal equipment, and the system that can guarantee in time selects optimum transmission mode to transmit, obtain best systematic function, implementation complexity is lower.
Embodiment three
The embodiment of the present invention three provides a kind of system of selection of transmission mode, and when current transmission mode was transmission mode 8, as shown in Figure 3, the method comprised the following steps:
Step 301 judges whether the SRS resource satisfies specific needs; If discontented toe is decided demand, execution in step 304; If satisfy specific needs, execution in step 302.
In step 302, judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding; If be not more than the preset ratio thresholding, execution in step 305; If greater than the preset ratio thresholding, execution in step 303.
Step 304 switches to transmission mode 3 with transmission mode by transmission mode 8.
In the embodiment of the present invention, judge whether the SRS resource satisfies specific needs, specifically include but not limited to:, calculate this SRS and report moment figuration vector and last SRS to report the correlation between the figuration vector constantly under the cycle under the cycle when SRS sends SRS under the cycle as the user; If this correlation is not less than default correlation thresholding (carrying out equipment according to the practical experience value), determine that the SRS resource satisfies specific needs; If this correlation less than default correlation thresholding, is determined the discontented toe of SRS resource and is decided demand.
In multi-user's situation, support more users to adopt the beamforming transmission mode to send SRS in order to make system, during the cycle, can consider that the initial SRS cycle of configure user is more than 20ms at configuration SRS; When the user sends SRS under this cycle, calculate this SRS and report moment figuration vector SRS last time to report the correlation between the figuration vector constantly under the cycle under the cycle; If this correlation is not less than default correlation thresholding, think that this user SRS resource is abundant, the figuration vector can be followed the tracks of upper signal channel and change, and namely the SRS resource satisfies specific needs; If this correlation less than default correlation thresholding, thinks that this user SRS resource is insufficient, the figuration vector can't be followed the tracks of upper signal channel and change, and namely the discontented toe of SRS resource is decided demand.
In the embodiment of the present invention, for the judgement that makes correlation more accurate, can also carry out temporal average in the pattern switching cycle to the correlation of statistics, and utilize the correlation after average to determine whether the SRS resource satisfies specific needs, then utilize and determine that result selects corresponding transmission mode.
In the embodiment of the present invention, decide demand (the SRS resource be'ss insufficient) user for the discontented toe of SRS resource, if user's dispatching priority is high, and system spare SRS resource is greater than default resource thresholding (being that system has enough SRS resources can support the SRS cycle that its configuration is shorter), can reduce the corresponding SRS cycle, be this shorter SRS cycle of user's configuration; Satisfy the user of specific needs (the SRS resource is abundant) for the SRS resource, if the relativity of time domain of figuration vector high especially (as greater than 0.9) can improve the corresponding SRS cycle, be the long SRS cycle of this user's configuration.
In the embodiment of the present invention, before carrying out above-mentioned steps 301-305, can also determine user type (user type is specified type user or non-designated type of user), if user type is non-designated type of user, when the business datum amount was not more than preset data amount thresholding, selecting transmission mode was the transmission diversity mode of transmission mode 2DCI format1; When the business datum amount during greater than preset data amount thresholding, execution in step 301-305; If user type is the specified type user, execution in step 301-305.
In sum, in the embodiment of the present invention, can select transmission mode based on the spectrum efficiency situation of the stream transmission situation in SRS resource situation, pattern switching cycle, stream transmission is transmission mode 3 or transmission mode 8, avoid depending on the Computational Method of Velocity Measurement to terminal equipment, and the system that can guarantee in time selects optimum transmission mode to transmit, obtain best systematic function, implementation complexity is lower.
Embodiment four
Based on the inventive concept same with said method, a kind of selection equipment of transmission mode also is provided in the embodiment of the present invention, as shown in Figure 4, this equipment comprises:
Described selection module 12, concrete is that the SRS resource satisfies specific needs for working as described SRS resource situation, and the stream transmission situation in described pattern switching cycle is the time of transmission double fluid in the pattern switching cycle to account for the ratio of transmission total time greater than the preset ratio thresholding, and the spectrum efficiency situation of described stream transmission is the spectrum efficiency of double fluid during less than default efficient thresholding, and the selection transmission mode is transmission mode 8;
Perhaps, when described SRS resource situation is that the SRS resource satisfies specific needs, and the stream transmission situation in described pattern switching cycle is the ratio that accounts for transmission total time the time of transmission double fluid in the pattern switching cycle when being not more than the preset ratio thresholding, and selecting transmission mode is transmission mode 8;
Otherwise selecting transmission mode is transmission mode 3.
Described selection module 12, concrete being used for judges whether the SRS resource satisfies specific needs when current transmission mode is transmission mode 3;
If discontented toe is decided demand, keeping transmission mode is transmission mode 3;
If satisfy specific needs, in the judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding;
If be not more than the preset ratio thresholding, transmission mode is switched to transmission mode 8 by transmission mode 3;
If greater than the preset ratio thresholding, whether the spectrum efficiency of judgement double fluid is less than default efficient thresholding;
If be not less than default efficient thresholding, keeping transmission mode is transmission mode 3;
If less than default efficient thresholding, transmission mode is switched to transmission mode 8 by transmission mode 3.
Described selection module 12, concrete being used for judges whether the SRS resource satisfies specific needs when current transmission mode is transmission mode 8;
If discontented toe is decided demand, transmission mode is switched to transmission mode 3 by transmission mode 8;
If satisfy specific needs, in the judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding;
If be not more than the preset ratio thresholding, keeping transmission mode is transmission mode 8;
If greater than the preset ratio thresholding, whether the spectrum efficiency of judgement double fluid is less than default efficient thresholding;
If be not less than default efficient thresholding, transmission mode switched to transmission mode 3 by transmission mode 8;
If less than default efficient thresholding, keeping transmission mode is transmission mode 8.
Described determination module 11, calculates this SRS and reports moment figuration vector and last SRS to report the correlation between the figuration vector constantly under the cycle under the cycle at concrete being used for as the user when SRS sends SRS under the cycle; If described correlation is not less than default correlation thresholding, determine that the SRS resource satisfies specific needs; Discontented toe is decided demand if described correlation less than default correlation thresholding, is determined the SRS resource.
Described determination module 11 also is used for when the discontented toe of SRS resource is decided demand, if user's dispatching priority is high, and system spare SRS resource reduces the corresponding SRS cycle greater than default resource thresholding.
Described determination module 11 is used for also determining user type that described user type is specified type user or non-designated type of user; Described selection module 12, also being used for is non-designated type of user in described user type, when the business datum amount was not more than preset data amount thresholding, selecting transmission mode was the transmission diversity mode of transmission mode 2 descending control information format DCI format1; When the business datum amount during greater than preset data amount thresholding, it is the step of transmission mode 3 or transmission mode 8 that the spectrum efficiency situation of carrying out the stream transmission situation of utilizing in described SRS resource situation, described pattern switching cycle, described stream transmission is selected transmission mode; When described user type was the specified type user, the spectrum efficiency situation of the stream transmission situation of utilizing in described SRS resource situation, described pattern switching cycle, described stream transmission of carrying out selected transmission mode to be the step of transmission mode 3 or transmission mode 8.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
In sum, in the embodiment of the present invention, can select transmission mode based on the spectrum efficiency situation of the stream transmission situation in SRS resource situation, pattern switching cycle, stream transmission is transmission mode 3 or transmission mode 8, avoid depending on the Computational Method of Velocity Measurement to terminal equipment, and the system that can guarantee in time selects optimum transmission mode to transmit, obtain best systematic function, implementation complexity is lower.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (14)
1. the system of selection of a transmission mode, is characterized in that, the method comprises:
Determine the stream transmission situation in detection reference signal SRS resource situation, pattern switching cycle, the spectrum efficiency situation of stream transmission;
Utilize the spectrum efficiency situation of the stream transmission situation in described SRS resource situation, described pattern switching cycle, described stream transmission to select transmission mode to be transmission mode 3 or transmission mode 8.
2. the method for claim 1, it is characterized in that, the described spectrum efficiency situation of the stream transmission situation in described SRS resource situation, described pattern switching cycle, described stream transmission of utilizing selects transmission mode to be transmission mode 3 or transmission mode 8, specifically comprises:
When described SRS resource situation is that the SRS resource satisfies specific needs, and the stream transmission situation in described pattern switching cycle is the time of transmission double fluid in the pattern switching cycle to account for the ratio of transmission total time greater than the preset ratio thresholding, and the spectrum efficiency situation of described stream transmission is the spectrum efficiency of double fluid during less than default efficient thresholding, and the selection transmission mode is transmission mode 8;
Perhaps, when described SRS resource situation is that the SRS resource satisfies specific needs, and the stream transmission situation in described pattern switching cycle is the ratio that accounts for transmission total time the time of transmission double fluid in the pattern switching cycle when being not more than the preset ratio thresholding, and selecting transmission mode is transmission mode 8;
Otherwise selecting transmission mode is transmission mode 3.
3. method as claimed in claim 2, it is characterized in that, the described spectrum efficiency situation of the stream transmission situation in described SRS resource situation, described pattern switching cycle, described stream transmission of utilizing selects transmission mode to be transmission mode 3 or transmission mode 8, specifically comprises:
When current transmission mode is transmission mode 3, judge whether the SRS resource satisfies specific needs;
If discontented toe is decided demand, keeping transmission mode is transmission mode 3;
If satisfy specific needs, in the judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding;
If be not more than the preset ratio thresholding, transmission mode is switched to transmission mode 8 by transmission mode 3;
If greater than the preset ratio thresholding, whether the spectrum efficiency of judgement double fluid is less than default efficient thresholding;
If be not less than default efficient thresholding, keeping transmission mode is transmission mode 3;
If less than default efficient thresholding, transmission mode is switched to transmission mode 8 by transmission mode 3.
4. method as claimed in claim 2, it is characterized in that, the described spectrum efficiency situation of the stream transmission situation in described SRS resource situation, described pattern switching cycle, described stream transmission of utilizing selects transmission mode to be transmission mode 3 or transmission mode 8, specifically comprises:
When current transmission mode is transmission mode 8, judge whether the SRS resource satisfies specific needs;
If discontented toe is decided demand, transmission mode is switched to transmission mode 3 by transmission mode 8;
If satisfy specific needs, in the judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding;
If be not more than the preset ratio thresholding, keeping transmission mode is transmission mode 8;
If greater than the preset ratio thresholding, whether the spectrum efficiency of judgement double fluid is less than default efficient thresholding;
If be not less than default efficient thresholding, transmission mode switched to transmission mode 3 by transmission mode 8;
If less than default efficient thresholding, keeping transmission mode is transmission mode 8.
5. method as described in claim 3 or 4, is characterized in that, whether the described SRS of judgement resource satisfies specific needs, specifically comprises:
, calculate this SRS and report moment figuration vector and last SRS to report the correlation between the figuration vector constantly under the cycle under the cycle when SRS sends SRS under the cycle as the user;
If described correlation is not less than default correlation thresholding, determine that the SRS resource satisfies specific needs;
If described correlation less than default correlation thresholding, is determined the discontented toe of SRS resource and is decided demand.
6. method as claimed in claim 5, is characterized in that, described method also comprises:
When the discontented toe of SRS resource was decided demand, if user's dispatching priority is high, and system spare SRS resource reduced the corresponding SRS cycle greater than default resource thresholding.
7. as the described method of claim 1-4 any one, it is characterized in that, the described spectrum efficiency situation of the stream transmission situation in described SRS resource situation, described pattern switching cycle, described stream transmission of utilizing selects transmission mode for before transmission mode 3 or transmission mode 8, and described method also comprises:
Determine user type, described user type is specified type user or non-designated type of user;
If described user type is non-designated type of user, when the business datum amount was not more than preset data amount thresholding, selecting transmission mode was the transmission diversity mode of transmission mode 2 descending control information format DCI format1; When the business datum amount during greater than preset data amount thresholding, it is the step of transmission mode 3 or transmission mode 8 that the spectrum efficiency situation of carrying out the stream transmission situation of utilizing in described SRS resource situation, described pattern switching cycle, described stream transmission is selected transmission mode;
If described user type is the specified type user, the spectrum efficiency situation of the stream transmission situation of utilizing in described SRS resource situation, described pattern switching cycle, described stream transmission of carrying out selects transmission mode to be the step of transmission mode 3 or transmission mode 8.
8. the selection equipment of a transmission mode, is characterized in that, this equipment comprises:
Determination module is used for determining the stream transmission situation in detection reference signal SRS resource situation, pattern switching cycle, the spectrum efficiency situation of stream transmission;
Select module, be used for utilizing the stream transmission situation in described SRS resource situation, pattern switching cycle, the spectrum efficiency situation of stream transmission to select transmission mode to be transmission mode 3 or transmission mode 8.
9. equipment as claimed in claim 8, is characterized in that,
Described selection module, concrete is that the SRS resource satisfies specific needs for working as described SRS resource situation, and the stream transmission situation in described pattern switching cycle is the time of transmission double fluid in the pattern switching cycle to account for the ratio of transmission total time greater than the preset ratio thresholding, and the spectrum efficiency situation of described stream transmission is the spectrum efficiency of double fluid during less than default efficient thresholding, and the selection transmission mode is transmission mode 8;
Perhaps, when described SRS resource situation is that the SRS resource satisfies specific needs, and the stream transmission situation in described pattern switching cycle is the ratio that accounts for transmission total time the time of transmission double fluid in the pattern switching cycle when being not more than the preset ratio thresholding, and selecting transmission mode is transmission mode 8;
Otherwise selecting transmission mode is transmission mode 3.
10. equipment as claimed in claim 9, is characterized in that,
Described selection module, concrete being used for judges whether the SRS resource satisfies specific needs when current transmission mode is transmission mode 3;
If discontented toe is decided demand, keeping transmission mode is transmission mode 3;
If satisfy specific needs, in the judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding;
If be not more than the preset ratio thresholding, transmission mode is switched to transmission mode 8 by transmission mode 3;
If greater than the preset ratio thresholding, whether the spectrum efficiency of judgement double fluid is less than default efficient thresholding;
If be not less than default efficient thresholding, keeping transmission mode is transmission mode 3;
If less than default efficient thresholding, transmission mode is switched to transmission mode 8 by transmission mode 3.
11. equipment as claimed in claim 9 is characterized in that,
Described selection module, concrete being used for judges whether the SRS resource satisfies specific needs when current transmission mode is transmission mode 8;
If discontented toe is decided demand, transmission mode is switched to transmission mode 3 by transmission mode 8;
If satisfy specific needs, in the judgment model switching cycle, whether the time of transmission double fluid accounts for the ratio of transmission total time greater than the preset ratio thresholding;
If be not more than the preset ratio thresholding, keeping transmission mode is transmission mode 8;
If greater than the preset ratio thresholding, whether the spectrum efficiency of judgement double fluid is less than default efficient thresholding;
If be not less than default efficient thresholding, transmission mode switched to transmission mode 3 by transmission mode 8;
If less than default efficient thresholding, keeping transmission mode is transmission mode 8.
12. equipment as described in claim 10 or 11 is characterized in that,
Described determination module, calculates this SRS and reports moment figuration vector and last SRS to report the correlation between the figuration vector constantly under the cycle under the cycle at concrete being used for as the user when SRS sends SRS under the cycle; If described correlation is not less than default correlation thresholding, determine that the SRS resource satisfies specific needs; If described correlation less than default correlation thresholding, is determined the discontented toe of SRS resource and is decided demand.
13. equipment as claimed in claim 12 is characterized in that,
Described determination module also is used for when the discontented toe of SRS resource is decided demand, if user's dispatching priority is high, and system spare SRS resource reduces the corresponding SRS cycle greater than default resource thresholding.
14. as the described equipment of claim 8-11 any one, it is characterized in that,
Described determination module is used for also determining user type that described user type is specified type user or non-designated type of user;
Described selection module, also being used for is non-designated type of user in described user type, when the business datum amount was not more than preset data amount thresholding, selecting transmission mode was the transmission diversity mode of transmission mode 2 descending control information format DCI format1; When the business datum amount during greater than preset data amount thresholding, it is the step of transmission mode 3 or transmission mode 8 that the spectrum efficiency situation of carrying out the stream transmission situation of utilizing in described SRS resource situation, described pattern switching cycle, described stream transmission is selected transmission mode; When described user type was the specified type user, the spectrum efficiency situation of the stream transmission situation of utilizing in described SRS resource situation, described pattern switching cycle, described stream transmission of carrying out selected transmission mode to be the step of transmission mode 3 or transmission mode 8.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106358297A (en) * | 2015-07-14 | 2017-01-25 | ***通信集团公司 | Terminal, network cell equipment, device and method for service transmission on basis of configurable structural frames |
| CN110149714A (en) * | 2018-02-13 | 2019-08-20 | 电信科学技术研究院有限公司 | A kind of ascending transmission method, user equipment and the network equipment |
| CN110278562A (en) * | 2018-03-14 | 2019-09-24 | ***通信有限公司研究院 | Transmission mode adaptation scheme appraisal procedure, device and readable storage medium storing program for executing |
| CN111787629A (en) * | 2019-04-03 | 2020-10-16 | 大唐移动通信设备有限公司 | Multi-user pairing processing method and device after mode switching |
| WO2021187823A1 (en) * | 2020-03-16 | 2021-09-23 | 엘지전자 주식회사 | Method and device for transmitting or receiving pusch in wireless communication system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1981198A1 (en) * | 2006-02-02 | 2008-10-15 | Fujitsu Limited | Radio transmitting method, radio transmitter and radio receiver |
| CN101365229A (en) * | 2007-08-08 | 2009-02-11 | 中兴通讯股份有限公司 | Adaptive method for switching between single flow mode and double flow mode |
| CN102724726A (en) * | 2012-06-12 | 2012-10-10 | 大唐移动通信设备有限公司 | Method and device for switching multiple input multiple output (MIMO) mode in transmission mode (TM8) in long-term evolution (LTE) system |
-
2013
- 2013-02-25 CN CN201310058993.3A patent/CN103152083B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1981198A1 (en) * | 2006-02-02 | 2008-10-15 | Fujitsu Limited | Radio transmitting method, radio transmitter and radio receiver |
| CN101365229A (en) * | 2007-08-08 | 2009-02-11 | 中兴通讯股份有限公司 | Adaptive method for switching between single flow mode and double flow mode |
| CN102724726A (en) * | 2012-06-12 | 2012-10-10 | 大唐移动通信设备有限公司 | Method and device for switching multiple input multiple output (MIMO) mode in transmission mode (TM8) in long-term evolution (LTE) system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106358297A (en) * | 2015-07-14 | 2017-01-25 | ***通信集团公司 | Terminal, network cell equipment, device and method for service transmission on basis of configurable structural frames |
| CN110149714A (en) * | 2018-02-13 | 2019-08-20 | 电信科学技术研究院有限公司 | A kind of ascending transmission method, user equipment and the network equipment |
| CN110149714B (en) * | 2018-02-13 | 2022-10-04 | 大唐移动通信设备有限公司 | Uplink transmission method, user equipment and network equipment |
| CN110278562A (en) * | 2018-03-14 | 2019-09-24 | ***通信有限公司研究院 | Transmission mode adaptation scheme appraisal procedure, device and readable storage medium storing program for executing |
| CN111787629A (en) * | 2019-04-03 | 2020-10-16 | 大唐移动通信设备有限公司 | Multi-user pairing processing method and device after mode switching |
| CN111787629B (en) * | 2019-04-03 | 2022-01-28 | 大唐移动通信设备有限公司 | Multi-user pairing processing method and device after mode switching |
| WO2021187823A1 (en) * | 2020-03-16 | 2021-09-23 | 엘지전자 주식회사 | Method and device for transmitting or receiving pusch in wireless communication system |
| KR20220134594A (en) * | 2020-03-16 | 2022-10-05 | 엘지전자 주식회사 | PUSCH transmission/reception method and apparatus in a wireless communication system |
| KR102600426B1 (en) * | 2020-03-16 | 2023-11-09 | 엘지전자 주식회사 | Method and device for transmitting and receiving PUSCH in a wireless communication system |
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|---|---|
| CN103152083B (en) | 2015-11-18 |
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