CN103580798B - The distribution on transmission opportunity, the computational methods of uplink subframe number and device - Google Patents

Abstract

The present invention discloses a method and device for allocating sending opportunities and calculating the uplink subframe number. In the above method, the base station allocates an idle first uplink subframe for user equipment to be accessed to the base station, wherein the first uplink subframe The frame is used for the user equipment to report the channel quality indication CQI or the precoding matrix indication PMI to the base station; the base station allocates an idle second uplink subframe for the user equipment, wherein the second uplink subframe is used for the user equipment to report the precoding matrix to the base station Rank RI, the second uplink subframe is selected from idle uplink subframes in the first 0-N subframes of the first uplink subframe, and N is greater than or equal to the period for the user equipment to report the CQI or PMI to the base station. According to the technical scheme provided by the invention, the effects of improving system resource utilization, uplink throughput and user satisfaction are achieved.

Description

Method and device for allocation of sending opportunity and calculation of uplink subframe number

technical field

The present invention relates to the field of communications, in particular to a method and device for allocating sending opportunities and calculating uplink subframe numbers.

Background technique

The Physical Uplink Control Channel (PUCCH for short) is a physical channel for transmitting uplink control information in the Long Term Evolution (LTE for short) system, and its role is to transmit uplink data-independent control Signaling, that is, uplink control information (Uplink Control Information, referred to as UCI); PUCCH can support multiple formats, which can include: UCI transmitted in format 1 is a scheduling request (Scheduling Request, referred to as SR), format 2/2a/ The UCI transmitted in 2b is periodic CQI/PMI or multiplexing of CQI/PMI, RI and ACK/NACK. The user equipment (UE) detects and reports a channel quality indicator (Channel Quality Indicator, CQI) on the time, frequency, and code domain resources specified by the base station through Radio Resource Control (RRC) signaling. After receiving it, the eNB determines the modulation mode of the Physical Downlink Shared Channel (PDSCH for short) through the CQI. The UE detects and reports the Precoding Matrix Indicator (Precoding Matrix Indicator, PMI for short) at the same time as the CQI on the time, frequency, and code domain resources specified by the base station through RRC signaling. Coding matrix, where RI is the rank of the precoding matrix. The UE calculates the correlation of its downlink channel according to the detected downlink radio channel quality. All in all, CQI/PMI/RI reflect the channel quality information of the current user's downlink channel state, and the base station can judge the downlink channel codeword, precoding matrix, and transmission mode based on this information.

The upload timing for the UE to periodically report CQI/PMI/RI is configured by the eNB to the UE through the RRC signaling in the 36.331 protocol. The relevant content of the message is as follows:

The cqi-pmi-ConfigIndex in the message indicates the sending timing of the CQI/PMI; the ri-ConfigIndex indicates the sending timing of the RI, and the rest of the fields are irrelevant to the present invention and will not be repeated here. The 36.213 agreement stipulates the calculation formula of the sending timing of RI and CQI/PMI, where the sending timing of CQI/PMI can be expressed by the following formula:

(Formula 1)

Among them, n _f represents the system frame number, n _s represents the time slot number, N _{OFFSET, and CQI} represents the transmission timing offset of the CQI or the PMI, which is in one-to-one correspondence with the cqi-pmi-ConfigIndex sent by the eNB to the UE _NP represents the period for the user equipment to report the CQI or the PMI to the base station, which also has a unique correspondence with the cqi-pmi-ConfigIndex sent by the eNB to the UE. These two correspondences can be found in Table 7.2.2-1A (FDD) in the 36.213 agreement and Table 7.2.2-1C (TDD) in the 36.213 agreement.

Wherein, the sending timing of RI can be expressed by the following formula:

(Formula 2)

Among them, n _f represents the system frame number, n _s represents the time slot number, N _{OFFSET, and CQI} represents the transmission timing offset of the CQI or the PMI, which is in one-to-one correspondence with the cqi-pmi-ConfigIndex sent by the eNB to the UE , N _P represents the period for the user equipment to report the CQI or the PMI to the base station, N _{OFFSET, RI} represents the subframe offset number of the RI relative to the CQI/PMI, which is the same as that sent by the eNB to the UE ri-ConfigIndex is a one-to-one correspondence, and the specific correspondence can be found in Table 7.2.2-1B in the 36.213 protocol.

It is easy to see from the above two formulas that M _RI means that the period for the user equipment to report the RI to the base station is a multiple of the period for the user equipment to report the CQI or the PMI to the base station. The sending timing of RI may refer to the sending timing of CQI/PMI, and refer to the first sending timing of CQI in the RI cycle. The agreement also stipulates that the value range of N _OFFSET corresponding to the I _RI sent by the eNB to the UE (that is, the timing of sending the above RI) is {0,-1,...,-(N _p -1)} , _NP indicates the period for the user equipment to report the CQI or the PMI to the base station, that is, the subframe range that the RI can select is before the first _NP CQI/PMI uplink subframe in the RI period [0, N _P -1] subframes, as shown in FIG. 1 . When the value of the _MRI is greater than or equal to 2, some uplink subframe resources corresponding to the RI may not be used, which is a waste of precious PUCCH resources. Because in the LTE system, the PUCCH and the PUSCH share the uplink system bandwidth. If more PUCCH frequency domain resources are configured, it will inevitably lead to a reduction of PUSCH frequency domain resource configuration, thereby affecting the uplink throughput of the LTE system. In related technologies, in terms of product configuration, the number of resource blocks (RB) occupied by the PUCCH is minimized or fully utilized, so as to improve the resource utilization rate of the entire system and improve system throughput.

As shown in Figure 2, the above-mentioned existing problems will be described below by taking TDD subframe configuration 3, N _p =10, and M _RI =2 as an example (it should be noted that code division and frequency division do not need to be considered here). There are three uplink subframes in each CQI period. According to the above configuration, after CQI/PMI and RI resources are allocated to the first UE (I _CQI/PMI =9, I _RI =162); the second access The UE does not have enough resources to allocate RI, although there are still 3 idle uplink subframes within the 20MS period in FIG. 2 . Obviously, 50% of uplink subframes of CQI/PMI and RI are wasted in FIG. 2 .

Contents of the invention

The present invention provides a method and device for allocating sending opportunities and calculating the number of uplink subframes, so as to at least solve the problem in the related art that the value range of uplink subframes assigned to RI is likely to cause waste of part of the uplink subframe resources corresponding to RI question.

According to one aspect of the present invention, a method for allocating sending opportunities is provided.

The method for allocating transmission opportunities according to the present invention includes: the base station allocates an idle first uplink subframe for user equipment to access the base station, wherein the first uplink subframe is used for the user equipment to report channel quality indication CQI or precoding to the base station The matrix indicates PMI; the base station allocates an idle second uplink subframe for the user equipment, wherein the second uplink subframe is used for the user equipment to report the rank RI of the precoding matrix to the base station, and the second uplink subframe is from the first uplink subframe Selected from idle uplink subframes in the first 0-N subframes, where N is greater than or equal to a preset period for the user equipment to report the CQI or PMI to the base station.

Preferably, the second uplink subframe is selected from idle uplink subframes in the first 0-N subframes of the first uplink subframe by using the following formula: Among them, n _f represents the system frame number, n _s represents the time slot number, N _{OFFSET, CQI} represents the transmission timing offset of CQI or PMI, _NP represents the preset period for the user equipment to report CQI or PMI to the base station, and M _RI represents The cycle for the user equipment to report the RI to the base station is a multiple of the preset cycle for the user equipment to report the CQI or PMI to the base station, and the value range of N _{OFFSET, MRI} is 0 to M _RI -1.

Preferably, the RI-MriIndex information element is added to the periodic report channel quality indication CQI-ReportPeriodic information element, wherein the RI-MriIndex information element is used to adjust the selection range of the uplink subframe allocated for RI, and the value range of RI-MriIndex 0 to M _RI -1.

Preferably, after the base station allocates the first uplink subframe to the user equipment, it further includes: the base station determines that the user equipment reports the CQI according to the position of the allocated first uplink subframe and the preset period for the user equipment to report the CQI or PMI to the base station Or the timing of the PMI.

Preferably, after the base station allocates the second uplink subframe to the user equipment, the base station further includes: the base station determines the timing for the user equipment to report the RI according to the position of the allocated second uplink subframe and the preset period for the user equipment to report the RI to the base station .

Preferably, after the base station allocates the second uplink subframe to the user equipment, it further includes: the base station calculates the first uplink subframe number for reporting RI and the reporting CQI respectively according to the determined timing of reporting RI and the timing of reporting CQI or PMI. Or the second uplink subframe number of the PMI; the base station respectively receives the RI and the CQI or PMI reported by the user equipment according to the calculated first uplink subframe number and the second uplink subframe number.

According to another aspect of the present invention, a method for calculating an uplink subframe number is provided.

The calculation method of the uplink subframe number according to the present invention includes: the user equipment receives a configuration message from the base station, wherein the configuration message carries the timing of the user equipment reporting the RI and the timing of the user equipment reporting the CQI or PMI; the user equipment according to the reported The timing of RI and the timing of reporting CQI or PMI are respectively calculated to report the first uplink subframe number of RI and the second uplink subframe number of reporting CQI or PMI, wherein the first uplink subframe is used for the user equipment to report the channel to the base station Quality indication CQI or precoding matrix indication PMI, the second uplink subframe is used for the user equipment to report the rank RI of the precoding matrix to the base station, and the second uplink subframe is idle from the first 0-N subframes before the first uplink subframe Selected in the uplink subframe, N is greater than or equal to a preset period for the user equipment to report the CQI or PMI to the base station.

According to still another aspect of the present invention, a device for allocating sending opportunities is provided.

The device for allocating transmission opportunities according to the present invention includes: a first allocating module, configured to allocate an idle first uplink subframe for user equipment to access the base station, wherein the first uplink subframe is used for the user equipment to report a channel to the base station A quality indicator CQI or a precoding matrix indicator PMI; a second allocation module, configured to allocate an idle second uplink subframe for the user equipment, wherein the second uplink subframe is used for the user equipment to report the rank RI of the precoding matrix to the base station, The second uplink subframe is selected from idle uplink subframes in 0-N subframes before the first uplink subframe, and N is greater than or equal to a preset period for the user equipment to report the CQI or PMI to the base station.

Preferably, the above apparatus further includes: a first determining module, configured to determine the timing for the user equipment to report the CQI or PMI according to the position of the allocated first uplink subframe and the preset period for the user equipment to report the CQI or PMI to the base station.

Preferably, the above apparatus further includes: a second determining module, configured to determine the timing for the user equipment to report the RI according to the position of the allocated second uplink subframe and the preset period for the user equipment to report the RI to the base station.

Preferably, the above device further includes: a calculation module, configured to calculate respectively the first uplink subframe number for reporting RI and the second uplink subframe number for reporting CQI or PMI according to the determined timing of reporting RI and the timing of reporting CQI or PMI. Frame number; a receiving module, configured to receive the RI and CQI or PMI reported by the user equipment respectively according to the calculated first uplink subframe number and the second uplink subframe number.

According to yet another aspect of the present invention, a device for calculating an uplink subframe number is provided.

The device for calculating the uplink subframe number according to the present invention includes: a receiving module, configured to receive a configuration message from the base station, wherein the configuration message carries the determined timing for the user equipment to report the RI and the time for the user equipment to report the CQI or PMI timing; a calculation module, configured to calculate the first uplink subframe number for reporting RI and the second uplink subframe number for reporting CQI or PMI according to the determined timing of reporting RI and the timing of reporting CQI or PMI, wherein, the first One uplink subframe is used for user equipment to report channel quality indication CQI or precoding matrix indication PMI to the base station, and the second uplink subframe is used for user equipment to report the rank RI of precoding matrix to the base station, and the second uplink subframe is from the first Selected from the idle uplink subframes in the first 0-N subframes of the uplink subframe, where N is greater than or equal to a preset period for the user equipment to report the CQI or PMI to the base station.

Through the present invention, the base station is used to allocate idle first uplink subframes for the user equipment to be accessed to the base station, and the user equipment reports CQI or PMI to the base station, and the idle uplink subframes from 0-N subframes before the first uplink subframe The second uplink subframe is selected in the frame for the user equipment to report the RI to the base station, where N is greater than or equal to the period for the user equipment to report the CQI or PMI to the base station, which solves the problem of assigning the value range of the uplink subframe for RI in the related art It is easy to cause the waste of some uplink subframe resources corresponding to the RI, thereby achieving the effect of improving system resource utilization, uplink throughput, and user satisfaction.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of RI subframe configuration and CQI/PMI subframe configuration according to the related art;

FIG. 2 is a schematic diagram of CQI/PMI and RI resource allocation according to TDD subframe configuration 0, N _p =10, and M _RI =2 in the related art;

FIG. 3 is a flowchart of a method for allocating transmission opportunities according to an embodiment of the present invention;

FIG. 4 is a flow chart of CQI/PMI and RI resource configuration in a TDD subframe configuration 0, _Np= 10, _MRI =2 according to a preferred embodiment of the present invention;

FIG. 5 is a flow chart of the second UE accessing the eNB to select CQI/PMI and RI transmission timing based on the conditions in FIG. 4 according to a preferred embodiment of the present invention;

FIG. 6 is a schematic diagram of resource allocation of TDD subframe configuration 0, N _p =10, and M _RI =2 according to a preferred embodiment of the present invention;

FIG. 7 is a schematic diagram of system resource allocation under a typical configuration of TDD according to a preferred embodiment of the present invention;

FIG. 8 is a flowchart of a method for calculating an uplink subframe number according to an embodiment of the present invention;

FIG. 9 is a structural block diagram of an apparatus for allocating transmission opportunities according to an embodiment of the present invention;

FIG. 10 is a structural block diagram of an apparatus for allocating transmission opportunities according to a preferred embodiment of the present invention; and

Fig. 11 is a structural block diagram of an apparatus for calculating an uplink subframe number according to an embodiment of the present invention.

detailed description

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Fig. 3 is a flowchart of a method for allocating transmission opportunities according to an embodiment of the present invention. As shown in Figure 3, the method may include the following processing steps:

Step S302: The base station allocates an idle first uplink subframe for the user equipment to be accessed to the base station, wherein the first uplink subframe is used for the user equipment to report the channel quality indicator CQI or the precoding matrix indicator PMI to the base station;

Step S304: The base station allocates an idle second uplink subframe to the user equipment, wherein the second uplink subframe is used for the user equipment to report the rank RI of the precoding matrix to the base station, and the second uplink subframe is the second uplink subframe before the first uplink subframe Selected from the idle uplink subframes among the 0-N subframes, where N is greater than or equal to a preset period for the user equipment to report the CQI or PMI to the base station.

In the related art, allocating the value range of the uplink subframe to the RI may easily lead to waste of part of the uplink subframe resources corresponding to the RI. Using the method shown in Figure 3, the base station allocates an idle first uplink subframe for the user equipment to be accessed to the base station, in which the user equipment reports CQI or PMI to the base station, from the first 0-N subframes before the first uplink subframe The second uplink subframe is selected from the idle uplink subframes for the user equipment to report RI to the base station, where N is greater than or equal to the period for the user equipment to report CQI or PMI to the base station, that is, in the related art, the idle uplink subframe is allocated for RI The value range of the frame is [0, _NP -1] subframes before the first _NP CQI/PMI uplink subframe in the RI cycle, and the technical solution provided by the present invention, the maximum value of RI is greater than or equal to N _P , which solves the problem in the related art that the value range of uplink subframes assigned to RI is likely to cause waste of part of the uplink subframe resources corresponding to RI, thereby improving system resource utilization, uplink throughput and effect on user satisfaction.

Preferably, the following formula can be used to select the second uplink subframe from the idle uplink subframes in the first 0-N subframes of the first uplink subframe:

Among them, n _f represents the system frame number, n _s represents the time slot number, N _{OFFSET, CQI} represents the transmission timing offset of CQI or PMI, _NP represents the period for the user equipment to report the CQI or PMI to the base station, M _RI represents the user equipment to the base station The period for the base station to report the RI is a multiple of the period for the user equipment to report the CQI or PMI to the base station, and the value range of N _{OFFSET, MRI} is 0 to M _RI -1.

In the preferred implementation process, the RI-MriIndex information element is added to the periodic report channel quality indication CQI-ReportPeriodic information element, wherein the RI-MriIndex information element is used to adjust the selection range of the uplink subframe allocated for RI, and the RI-MriIndex The value range is from 0 to M _RI -1.

In a preferred embodiment, the extended ri-MriIndex information element is added in the CQI-ReportPeriodic information element of the 36.331 protocol, specifically as follows:

Wherein, the value range of ri-MriIndex is [0, M _RI -1], indicating the timing selected by the UE when sending RI. Due to the addition of an extension item, when this extension item is not carried, the default value of ri-MriIndex is 0, and the formula describing the timing of RI reporting in the protocol 36.213 of the related technology is changed from the above formula 2 to formula 3:

(Formula 3)

N _OFFSET,MRI in the above formula 3 is ri-MriIndex, and N _OFFSET,MRI · _NP is equal to ri-MriIndex multiplied by the period for the user equipment to report the CQI or PMI to the base station. Therefore, when the UE calculates the sending timing of CQI/PMI and RI, it needs to use formula 3 to calculate, instead of using formula 2 in the related art. Similarly, when the eNB is waiting to receive the UE's CQI/PMI and RI to report, it will also use Formula 3.

It should be noted that when ri-MriIndex=0, Formula 3 is equivalent to Formula 2.

Preferably, in step S302, after the base station allocates the first uplink subframe to the user equipment, the following steps may also be included:

Step S1: the base station determines the timing for the user equipment to report the CQI or PMI according to the position of the allocated first uplink subframe and the period for the user equipment to report the CQI or PMI to the base station.

Preferably, in step S304, after the base station allocates the second uplink subframe to the user equipment, the following processing may also be included:

Step S2: the base station determines the timing for the user equipment to report the RI according to the position of the allocated second uplink subframe and the period for the user equipment to report the RI to the base station.

In a preferred embodiment, FIG. 4 is a flow chart of CQI/PMI and RI resource configuration in TDD subframe configuration 0, N _p =10, M _RI =2 according to a preferred embodiment of the present invention. As shown in Figure 4, when the cell is successfully established and the UE accesses the eNB, the eNB selects CQI/PMI, and the timing of sending RI may include the following processing steps:

Step S402: Find a subframe for CQI in all idle uplink subframes, for example: (1, 2, 3). Since this is the first allocation, any subframe in 1, 2, 3 can be allocated . In this preferred embodiment, it is assumed that the CQI is allocated from the back to the front, and the allocation result is subframe 3;

Step S404: Calculate cqi-pmi- The value of ConfigIndex is 10;

Step S406: Find an idle subframe for the RI in all the remaining idle uplink subframes (1, 2), and there are various selection methods that can be adopted. In this preferred embodiment, it is assumed that allocation is from left to right, and since M _RI =2, subframe 1 can be allocated with RI reports of up to 2 UEs. Assume that the first UE position of subframe 1 is allocated at this time;

Step S408: Calculate the value of ri-ConfigIndex according to Table 7.2.2-1B in protocol 36.213 (including: the position of the second uplink subframe allocated by the base station and the preset period for the user equipment to report RI to the base station) for 163. Because the UE is the first UE allocated on subframe 1 at this time, the value of ri-MriIndex is 0.

So far, the CQI/PMI allocated for the first UE, the time domain resources of RI are: cqi-pmi-ConfigIndex=10; ri-ConfigIndex=163, ri-MriIndex=0.

Preferably, in step S304, after the base station allocates the second uplink subframe to the user equipment, the following steps may also be included:

Step S5: The base station calculates the first uplink subframe number for reporting RI and the second uplink subframe number for reporting CQI or PMI according to the determined timing of reporting RI and the timing of reporting CQI or PMI;

Step S6: The base station respectively receives the RI and the CQI or PMI reported by the user equipment according to the calculated first uplink subframe number and the second uplink subframe number.

In a preferred embodiment, FIG. 5 is a flow chart of selecting CQI/PMI and RI transmission timing when the second UE accesses the eNB based on the conditions in FIG. 4 according to the preferred embodiment of the present invention. As shown in FIG. 5 , CQI/PMI and RI resource configuration of 0, N _p =10, M _RI =2 are configured in the TDD subframe. When the cell is established successfully, after a UE has accessed the eNB; the second UE accesses the eNB to select CQI/PMI, and the sending timing of RI may include the following steps:

Step S502: Continue to use the transmission opportunity allocation method in the preferred embodiment shown in Figure 4 to allocate resources for the second UE, that is, allocate subframe 2 for CQI/PMI, and allocate the second RI resource of subframe 1 for RI ;

It should be noted that when the RI resource is allocated to the second UE, since the first RI space on subframe 1 has been allocated to the first UE, the second RI resource is allocated here.

Step S504: According to the allocation result in step S502, calculate cqi-pmi-ConfigIndex=9; ri-ConfigIndex=162 according to Table 7.2.2-1B and Table 7.2.2-1C in protocol 36.213; The second RI resource, so ri-MriIndex=1;

Step S506: The eNB sends the configuration information to the UE through the RRC-RECONFIGURATION message;

Step S508: After the UE receives the reconfiguration message from the eNB through the air interface message, it calculates the uplink subframe number according to formula 1 and formula 3: CQI/PMI is sent in the uplink subframe 2+10*n1[n1=0,1023] Uplink report, and RI sends uplink report in uplink subframe 11+20*n2[n2=0,511];

Step S510: The eNB also uses the same operation as the UE in step S508, and obtains that the timing for the UE to send RI and CQI/PMI uplink is that the CQI/PMI is in the uplink subframe 2+10*n1[n1=0,1023], and the RI is in The uplink subframe is 11+20*n2[n2=0,511]. Wait for and receive the CQI/PMI and RI at the above timing, and then perform corresponding processing.

In a preferred embodiment, FIG. 6 is a schematic diagram of resource allocation of TDD subframe configuration 0, N _p =10, and M _RI =2 according to a preferred embodiment of the present invention. As shown in Figure 6, the value assigned to the first UE is: I _CQI/PMI =9, I _RI =162, ri-MriIndex=0; the value assigned to the second UE is: I _CQI/PMI =10, I RI =162, ri-MriIndex=0; _RI = 163, ri-MriIndex = 1; in this way, the problem of inability to allocate resources for the second UE as shown in Figure 2 above can be solved, and at the same time, precious PUCCH uplink resources can be fully utilized.

The above preferred implementation process will be further described below in conjunction with the preferred embodiment shown in FIG. 7 .

Fig. 7 is a schematic diagram of system resource allocation under a typical TDD configuration according to a preferred embodiment of the present invention. As shown in Figure 7, Indicates the PUCCH2RI subframe, Indicates that the PUCCH2CQI/PMI/RI subframe before adopting the technical solution provided by the present invention becomes a PUSCH subframe after adopting the technical solution provided by the present invention, Indicates the PUSCH subframe, Represents a PUCCH2CQI/PMI subframe, Indicates that the idle subframe before adopting the technical solution provided by the present invention becomes a PUCCH2RI subframe after adopting the technical solution provided by the present invention, Indicates a subframe that still cannot be utilized by adopting the technical solution provided by the present invention, Indicates that the idle subframe before adopting the technical solution provided by the present invention becomes a PUCCH2 CQI/PMI subframe after adopting the technical solution provided by the present invention.

According to the typical TDD configuration, in the case of supporting 400 UEs, the calculation is performed based on the subframe ratio of 2, the code score of 12, the UE reporting CQI/PMI period of 20ms, and the MRI configuration of 4. If the technical solution provided by the present invention is not adopted, the bandwidth to be allocated to PUCCH2 is 17 RBs, occupying 17% of the total bandwidth, which obviously compresses the resource space of PUSCH. After adopting the technical solution provided by the present invention, only 11 PUCCH2 bandwidths need to be configured, which reduces 6 RBs, which is equivalent to increasing the uplink capacity by 6/83=7.2%. It can be seen that compared with related technologies, the technical solution provided by the present invention can effectively reduce the occupancy rate of PUCCH2 resources, thereby improving the uplink throughput of the system and improving user satisfaction.

Fig. 8 is a flowchart of a method for calculating an uplink subframe number according to an embodiment of the present invention. As shown in Figure 8, the method may include the following processing steps:

Step S802: The user equipment receives a configuration message from the base station, wherein the configuration message carries the timing of the user equipment reporting the RI and the timing of the user equipment reporting the CQI or PMI;

Step S804: The user equipment respectively calculates the first uplink subframe number for reporting RI and the second uplink subframe number for reporting CQI or PMI according to the timing of reporting RI and the timing of reporting CQI or PMI, wherein the first uplink subframe uses Since the user equipment reports the channel quality indicator CQI or the precoding matrix indicator PMI to the base station, the second uplink subframe is used for the user equipment to report the rank RI of the precoding matrix to the base station, and the second uplink subframe is 0 before the first uplink subframe - selected from idle uplink subframes among the N subframes, where N is greater than or equal to a preset period for the user equipment to report the CQI or PMI to the base station.

Fig. 9 is a structural block diagram of an apparatus for allocating transmission opportunities according to an embodiment of the present invention. As shown in FIG. 9 , the apparatus for allocating transmission opportunities may include: a first allocating module 100, configured to allocate an idle first uplink subframe for a user equipment to access a base station, where the first uplink subframe is used for The user equipment reports the channel quality indicator CQI or the precoding matrix indicator PMI to the base station; the second allocation module 102 is configured to allocate an idle second uplink subframe for the user equipment, wherein the second uplink subframe is used for the user equipment to report to the base station The rank RI of the precoding matrix, the second uplink subframe is selected from the idle uplink subframes in the first 0-N subframes before the first uplink subframe, and N is greater than or equal to the preset user equipment to report CQI or PMI to the base station cycle.

Using the device shown in Figure 9 solves the problem in the related art that assigning the value range of uplink subframes to RI is likely to cause waste of some uplink subframe resources corresponding to RI, thereby improving system resource utilization and uplink throughput volume and user satisfaction.

Preferably, as shown in FIG. 10, the above-mentioned apparatus may further include: a first determination module 104, configured to determine that the user equipment reports the CQI according to the position of the allocated first uplink subframe and the period for the user equipment to report the CQI or PMI to the base station Or the timing of the PMI.

Preferably, as shown in FIG. 10, the above apparatus may further include: a second determination module 106, configured to determine the timing for the user equipment to report the RI according to the position of the allocated second uplink subframe and the period for the user equipment to report the RI to the base station .

Preferably, as shown in FIG. 10, the above-mentioned device may further include: a calculation module 108, configured to calculate the first uplink subframe number for reporting RI and the reporting The second uplink subframe number of the CQI or PMI; the receiving module 110 is configured to respectively receive the RI and the CQI or PMI reported by the user equipment according to the calculated first uplink subframe number and the second uplink subframe number.

Fig. 11 is a structural block diagram of an apparatus for calculating an uplink subframe number according to an embodiment of the present invention. As shown in FIG. 11 , the means for calculating the uplink subframe number may include: a receiving module 200, configured to receive a configuration message from the base station, wherein the configuration message carries the determined timing for reporting the RI by the user equipment and the user equipment The timing of reporting CQI or PMI; the calculation module 202 is used to calculate the first uplink subframe number for reporting RI and the second uplink subframe number for reporting CQI or PMI according to the determined timing of reporting RI and the timing of reporting CQI or PMI. Frame number, wherein the first uplink subframe is used for the user equipment to report the channel quality indicator CQI or the precoding matrix indication PMI to the base station, the second uplink subframe is used for the user equipment to report the rank RI of the precoding matrix to the base station, and the second uplink subframe is used for the user equipment to report the rank RI of the precoding matrix to the base station, and the second uplink subframe The subframes are selected from the idle uplink subframes of 0-N subframes before the first uplink subframe, and N is greater than or equal to a preset period for the user equipment to report the CQI or PMI to the base station.

It should be noted that, the preferred working mode of the interaction between the modules shown in FIG. 9 and FIG. 11 can refer to the embodiments shown in FIG. 3 to FIG. 8 , which will not be repeated here.

From the above description, it can be seen that the above embodiments achieve the following technical effects (it should be noted that these effects are the effects that some preferred embodiments can achieve): improving system resource utilization, uplink throughput and user satisfaction Spend.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases, in an order different from that shown here The steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (12)

1. A kind of 1. distribution method on transmission opportunity, it is characterised in that including：

   Base station is the first idle sub-frame of uplink of the user equipment distribution of the base station to be accessed, wherein, the first up son Frame is used for the user equipment and indicates CQI or pre-coding matrix instruction PMI to the base station reporting channel quality；

   The base station is the second idle sub-frame of uplink of user equipment distribution, wherein, second sub-frame of uplink is used for institute The order RI that user equipment reports pre-coding matrix to the base station is stated, second sub-frame of uplink is from first sub-frame of uplink Chosen in the preceding hollow not busy sub-frame of uplink of 0-N subframe, N is more than or equal to the default user equipment to the base station Report the CQI or the PMI cycle.
2. 2. according to the method for claim 1, it is characterised in that using equation below from 0-N before first sub-frame of uplink Second sub-frame of uplink is chosen in the individual hollow not busy sub-frame of uplink of subframe：

   Wherein, n_fRepresent System Frame Number, n_sRepresent timeslot number, N_OFFSET,CQIRepresent the CQI or the PMI transmission opportunity Skew, N_PRepresent that the default user equipment reports the CQI or the PMI cycle, M to the base station_RIRepresent institute State user equipment reports the cycle of the RI to report the CQI to the base station for the default user equipment to the base station Or the multiple in the cycle of the PMI, N_OFFSET,MRISpan be 0 to M_RI- 1, N_OFFSET,RIRepresent RI relative to CQI/ PMI sub-frame offset number, N_OFFSET,MRIRepresent which CQI cycles within a RI cycle, N_OFFSET,MRISpan be 0 to M_RI-1。
3. 3. according to the method for claim 2, it is characterised in that periodic report channel quality indicator (CQI)- Increase RI-MriIndex cells in ReportPeriodic cells, wherein, the RI-MriIndex cells are used to be adjusted to institute The selection range of RI distribution sub-frame of uplink is stated, the span of the RI-MriIndex is 0 to M_RI-1。
4. 4. according to the method in any one of claims 1 to 3, it is characterised in that in the base station be the user equipment Distribute after first sub-frame of uplink, in addition to：

   The base station is according to the position of allocated first sub-frame of uplink and the default user equipment to the base station The CQI either PMI cycle is reported to determine CQI or the PMI opportunity described in the user equipment to report.
5. 5. according to the method for claim 4, it is characterised in that be user equipment distribution described second in the base station After sub-frame of uplink, in addition to：

   The base station is according to the position of allocated second sub-frame of uplink and the default user equipment to the base station The cycle of the RI is reported to determine the opportunity of RI described in the user equipment to report.
6. 6. according to the method for claim 5, it is characterised in that be user equipment distribution described second in the base station After sub-frame of uplink, in addition to：

   The base station according to after determination report the RI opportunity and report the CQI or the PMI opportunity to count respectively Calculate second uplink subframe number for reporting the RI and the described first up son for reporting the CQI or PMI Frame number；

   First uplink subframe number and second uplink subframe number that the base station calculates according to receive institute respectively State the RI and the CQI of user equipment to report or the PMI.
7. A kind of 7. computational methods of uplink subframe number, it is characterised in that including：

   User equipment receives the configuration message for coming from base station, wherein, carried in the configuration message on the user equipment Report RI opportunity and the opportunity of the user equipment to report CQI or PMI；

   The user equipment is according to the opportunity for reporting the RI and reports the CQI or the PMI opportunity to calculate respectively Report the second uplink subframe number of the RI and report the CQI or the PMI the first uplink subframe number, wherein, institute State the first sub-frame of uplink and be used for the user equipment to base station reporting channel quality instruction CQI or pre-coding matrix instruction PMI, second sub-frame of uplink are used for the order RI that the user equipment reports pre-coding matrix to the base station, on described second Row subframe is from being chosen before first sub-frame of uplink in the hollow not busy sub-frame of uplink of 0-N subframe, and N is more than or equal to pre- If the user equipment CQI or PMI cycle is reported to the base station.
8. A kind of 8. distributor on transmission opportunity, it is characterised in that

   First distribute module, first sub-frame of uplink idle for the user equipment distribution for base station to be accessed, wherein, described the One sub-frame of uplink is used for the user equipment and indicates CQI or pre-coding matrix instruction PMI to the base station reporting channel quality；

   Second distribute module, for the second sub-frame of uplink for the user equipment distribution free time, wherein, the second up son Frame is used for the order RI that the user equipment reports pre-coding matrix to the base station, and second sub-frame of uplink is from described first Chosen before sub-frame of uplink in the hollow not busy sub-frame of uplink of 0-N subframe, N be more than or equal to the default user equipment to The base station reports the CQI or the PMI cycle.
9. 9. device according to claim 8, it is characterised in that described device also includes：

   First determining module, for the position according to allocated first sub-frame of uplink and the default user equipment to The base station reports the CQI either PMI cycle to determine CQI's described in the user equipment to report or PMI Opportunity.
10. 10. device according to claim 9, it is characterised in that described device also includes：

    Second determining module, for the position according to allocated second sub-frame of uplink and the default user equipment to The base station reports the cycle of the RI to determine opportunity of RI described in the user equipment to report.
11. 11. device according to claim 10, it is characterised in that described device also includes：

    Computing module, for according to reporting the opportunity of the RI and report the CQI or the PMI opportunity point after determination Do not calculate second uplink subframe number for reporting the RI and report the CQI or PMI described first on Row subframe numbers；

    Receiving module, first uplink subframe number and second uplink subframe number for being calculated according to connect respectively Receive the RI and the CQI of the user equipment to report or the PMI.
12. A kind of 12. computing device of uplink subframe number, it is characterised in that

    Receiving module, the configuration message of base station is come from for receiving, wherein, carry the use after determining in the configuration message Family equipment reports RI opportunity and the opportunity of the user equipment to report CQI or PMI；

    Computing module, for according to reporting the opportunity of the RI and report the CQI or the PMI opportunity point after determination The second uplink subframe number for reporting the RI is not calculated and reports the CQI or the PMI the first uplink subframe number, Wherein, first sub-frame of uplink is used for the user equipment to base station reporting channel quality instruction CQI or precoding Matrix indicates PMI, and second sub-frame of uplink is used for the order RI that the user equipment reports pre-coding matrix to the base station, institute State the second sub-frame of uplink be from being chosen before first sub-frame of uplink in the hollow not busy sub-frame of uplink of 0-N subframe, N be more than or Person is equal to the cycle that the default user equipment reports the CQI or the PMI to the base station.