CN103024907B - Resource allocation methods and device - Google Patents

Abstract

The present invention discloses a resource allocation method and device. The method includes: dividing the physical uplink control channel (PUCCH) resource to be allocated and having a format of 2/2a/2b into a first resource group and a second resource group; determining It is necessary to allocate PUCCH resources with format 2/2a/2b for the UE; judge whether the transmission mode of the UE is TM3, TM4, TM8 or TM9; if the judgment result is yes, then in the first resource group for the Allocating PUCCH resources to the UE; if the judgment result is no, allocating PUCCH resources to the UE in the second resource group. The technical scheme of the present invention effectively improves the utilization rate of frequency band resources under the premise of ensuring effective reporting of control information CQI\PMI\RI when allocating resources for PUCCH formats 2/2a/2b.

Description

Resource allocation method and device

technical field

The present invention relates to the technical field of mobile communication, in particular to a resource allocation method and device.

Background technique

The Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel) is a physical channel for transmitting uplink control information in the Long Term Evolution (LTE, Long Term Evolution) system. The function of the PUCCH is to transmit uplink control information that has nothing to do with data, such as Uplink Control Information (UCI, Uplink Control Information). PUCCH is distributed in a frequency region at the edge of the bandwidth of the LTE system, and it supports multiple formats (formats), where the UCI transmitted by PUCCH formats 2/2a/2b is Channel Quality Indicator (CQI, Channel Quality Indicator)/Precoding Matrix Indication (PMI , Precoding Matrix Indicator)/rank indicator (RI, Rank Indicator), or multiplexing of CQI/PMI/RI and acknowledgment signal (ACK, Acknowledgment).

The 36.213 protocol describes the periodic CQI/PMI/RI reporting mode and reporting methods in various reporting modes, and also describes the reporting timing of CQI and RI and the user equipment (UE, User Equipment) dedicated period. The UE assigns the PUCCH channel index according to the evolved base station (eNB, evolved Node B) CQI/PMI transmission period N _p , CQI/PMI subframe offset N _{OFFSET, CQI} , RI reporting factor M _RI , RI reporting subframe offset N _{OFFSET, RI} to determine specific channel resources and transmission subframes, wherein, The CQI/PMI/RI correspond to different sending subframes in two reporting modes of wideband (Wide band) and subband (Sub band). It can be seen from the reporting timings of different reporting modes described in the above protocol that the CQI/PMI and RI may overlap.

At the same time, the 36.213 agreement also clearly describes that when the RI overlaps with the wideband CQI/PMI or subband CQI resources, the wideband CQI/PMI or subband CQI will be discarded. If PUCCH formats2/2a/2b resources are allocated, the resource allocation will not If it is reasonable, it will lead to overlapping of CQI/PMI and RI, which will seriously affect the transmission of CQI, thereby causing a very large impact on the downlink scheduling of the eNB. Therefore, when allocating PUCCH formats 2/2a/2b resources, it is necessary to ensure the effective transmission of CQI/PMI and RI, that is, try to ensure that the resource positions of CQI/PMI and RI do not overlap as much as possible, but this may make PUCCH formats 2/2a/2b occupy more control channel resources.

However, the 36.211 protocol describes the frequency domain and code channel resource mapping of the PUCCH and the number of available resources. PUCCH formats 2/2a/2b only have frequency domain code division multiplexing, and the available code channel resources in a subframe are It can be seen that, except for mixed resource blocks (RB, Resource Block), in the same subframe of PUCCH formats 2/2a/2b, the maximum number of available resources is the number of RBs occupied by formats 2/2a/2b Decide, is the maximum number of sequences on each RB in PUCCH formats2/2a/2b. At the same time, since PUCCH formats 2/2a/2b only have frequency-domain code division multiplexing, the frequency band utilization of PUCCH formats 2/2a/2b is lower than that of PUCCH formats 1/1a/1b. According to the system cell capacity requirements, PUCCH formats 2/ 2a/2b may occupy more RB resources. In order to improve the utilization of frequency band resources, it is necessary to reduce the number of RBs occupied by the control channel as much as possible, so the number of RBs occupied by PUCCH formats 2/2a/2b It should not be configured too large.

It can be seen from the above that when allocating resources for PUCCH formats 2/2a/2b, on the premise of ensuring effective reporting of control information CQI\PMI\RI, it is a problem to be solved in the prior art to effectively improve the utilization rate of frequency band resources.

Contents of the invention

Embodiments of the present invention provide a resource allocation method and device, which are used to effectively improve frequency band resource utilization on the premise of ensuring effective reporting of control information CQI\PMI\RI when allocating resources for PUCCH formats2/2a/2b.

The technical scheme of the embodiment of the present invention is as follows:

A method for resource allocation, the method comprising the steps of: dividing the physical uplink control channel PUCCH resources to be allocated and formatted as 2/2a/2b into a first resource group and a second resource group, wherein the first resource group uses To ensure that the channel quality indicator/precoding matrix indicator CQI/PMI of the same user terminal UE does not overlap with the rank indicator RI, and to ensure that the CQI/PMI and RI between different UEs do not overlap, the second resource group is used to ensure that different The CQI/PMI between the UEs does not overlap; it is determined that the UE needs to be allocated a PUCCH resource with a format of 2/2a/2b; it is judged whether the transmission mode of the UE is TM3, TM4, TM8 or TM9; if the judgment result is yes, then Allocating PUCCH resources for the UE in the first resource group; if the judgment result is no, allocating PUCCH resources for the UE in the second resource group.

A resource allocation device, comprising: a resource division unit, configured to divide the physical uplink control channel PUCCH resources to be allocated and format 2/2a/2b into a first resource group and a second resource group, wherein the first The resource group is used to ensure that the channel quality indication/precoding matrix indication CQI/PMI of the same user terminal UE does not overlap with the rank indication RI, and to ensure that the CQI/PMI and RI between different UEs do not overlap. The second resource group is used To ensure that the CQI/PMI between different UEs does not overlap; the allocation determination unit is used to determine the need to allocate PUCCH resources with a format of 2/2a/2b for the UE; the mode judgment unit is used to judge whether the transmission mode of the UE is TM3, TM4, TM8 or TM9; the first resource allocation unit is configured to allocate PUCCH resources for the UE in the first resource group when the determination result of the mode determination unit is yes; the second resource allocation unit is used to Allocating PUCCH resources for the UE in the second resource group when the judgment result of the mode judging unit is negative.

The beneficial effects of the present invention are as follows:

In the technical solution of the embodiment of the present invention, the PUCCH resources to be allocated and formatted as 2/2a/2b are divided into a first resource group and a second resource group, wherein the first resource group is used to ensure that the CQI/PMI and RI does not overlap, and ensures that CQI/PMI and RI between different UEs do not overlap. The second resource group is used to ensure that CQI/PMI between different UEs does not overlap; it is determined that the UE needs to be assigned a format of 2/2a/ 2b PUCCH resources; determine whether the transmission mode of the UE is TM3, TM4, TM8 or TM9; if the determination result is yes, allocate PUCCH resources for the UE in the first resource group; if the determination result is no , then allocate PUCCH resources for the UE in the second resource group. It can be seen from the above that by adopting the technical solution of the present invention, when allocating resources for PUCCH formats 2/2a/2b, the utilization rate of frequency band resources can be effectively improved under the premise of ensuring effective reporting of control information CQI\PMI\RI.

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 present invention. 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 flow chart of a resource allocation method in an embodiment of the present invention;

FIG. 2 is a schematic diagram 1 of resource allocation in an embodiment of the present invention;

FIG. 3 is a schematic diagram 2 of resource allocation in an embodiment of the present invention;

FIG. 4 is a schematic diagram 3 of resource allocation in an embodiment of the present invention;

FIG. 5 is a schematic diagram 4 of resource allocation in an embodiment of the present invention;

FIG. 6 is a schematic flow diagram of a method for allocating resources to a UE when the UE initially accesses in an embodiment of the present invention;

FIG. 7 is a schematic flow diagram of a method for allocating resources for a UE when the eNB initiates reconfiguration of the UE transmission mode in an embodiment of the present invention;

FIG. 8 is a schematic flow diagram of a method for allocating resources to a UE when the UE performs handover in an embodiment of the present invention;

FIG. 9 is a schematic flow diagram of a method for allocating resources to a UE when the UE needs to recover from an uplink out-of-sync state in an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a resource allocation device in an embodiment of the present invention.

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in FIG. 1, an embodiment of the present invention provides a resource allocation method, and its specific processing flow is as follows:

Step 11: Divide the PUCCH resources to be allocated and format 2/2a/2b (also referred to as PUCCH formats 2/2a/2b resources) into a first resource group and a second resource group, wherein the first resource group uses In order to ensure that the CQI/PMI and RI of the same UE do not overlap, and that the CQI/PMI and RI between different UEs do not overlap, the second resource group is used to ensure that the CQI/PMI between different UEs does not overlap;

In order to ensure that the CQI/PMI and RI of the same UE do not overlap, and that the CQI/PMI and RI of different UEs do not overlap, it is necessary to allocate PUCCHformats 2/2a/2b resources to the CQI\PMI and RI of each UE separately ; At the same time, since RI is only reported when the transmission mode is TM3, TM4, TM8 and TM9, other transmission modes do not need to be reported, especially for cell edge UEs, the probability of using TM3, TM4, TM8 and TM9 for downlink transmission is relatively low Therefore, it is usually not necessary to report RI. If such UEs are allocated with non-overlapping RI resources, frequency band resources will be wasted.

In this regard, the embodiment of the present invention proposes that the PUCCH formats 2/2a/2b resources are allocated in groups, and the PUCCH formats 2/2a/2b resources to be allocated are divided into two resource groups in advance, the first resource group and the second resource group. The resource group, wherein, the proportion of the total resource pool occupied by the first resource group and the second resource group can be configured as different proportion values, such as 1:1, 1:2, 1:5, 2:1 or 5:1.

In the embodiment of the present invention, the first resource group is used to ensure that CQI/PMI and RI of the same UE do not overlap, and that CQI/PMI and RI of different UEs do not overlap. When PUCCH formats 2/2a/2b resources are allocated to UEs in the transmission mode TM3, TM4, TM8 or TM9, they are allocated in the resources of the first resource group. For the UE allocated resources in this resource group, its CQI\PMI and RI resources will not overlap with the CQI\PMI or RI of other UEs;

The second resource group is used to ensure that the CQI/PMI between different UEs does not overlap, but the CQI\PMI and RI resources of the same UE can overlap (in the case of overlap, the configuration RI reporting factor M _RI is not 1), between different UEs RI and CQI\PMI, RI and RI can overlap. When PUCCH formats 2/2a/2b resources are allocated to UEs whose transmission mode is not TM3, TM4, TM8 or TM9, they are allocated in the resources of the second resource group. For a UE allocated PUCCH formats 2/2a/2b resources in this resource group, its CQI\PMI may be lost because it overlaps with the RI resource of the UE, or it cannot be solved because it overlaps with the RI resource of other UEs. The RI cannot be solved because the RIs of the two UEs overlap.

Step 12, determining that the UE needs to be allocated a PUCCH resource with a format of 2/2a/2b;

When the eNB receives the radio resource control (RRC, Radio Resource Control) establishment request sent by the UE, it confirms that it needs to allocate PUCCH formats 2/2a/2b resources for the UE; or when it receives the handover request from the UE, it confirms that it needs to be The UE allocates PUCCH formats 2/2a/2b resources; or when the UE is in the RRC connection state, if the eNB initiates the UE transmission mode reconfiguration, it confirms that it needs to allocate PUCCH formats 2/2a/2b resources for the UE; or when the UE is in the RRC In the connected state, but the uplink is out of synchronization, if the UE needs to recover from the uplink out of synchronization state, it is confirmed that PUCCH fomats 2/2a/2b resources need to be allocated to the UE.

Step 13, judging whether the transmission mode of the UE is TM3, TM4, TM8 or TM9;

If the eNB receives the RRC establishment request sent by the UE or receives the handover request from the UE or the UE needs to recover from the uplink out-of-sync state, the eNB first acquires the transmission mode initially configured for the UE, and then judges the acquired transmission mode Whether it is TM3, TM4, TM8 or TM9.

When the UE is in the RRC connected state, if the eNB initiates reconfiguration of the UE transmission mode, it is judged whether the transmission mode of the UE is switched from other modes to TM3, TM4, TM8 or TM9.

Step 14, if the judgment result of step 13 is yes, allocating PUCCH resources for the UE in the first resource group;

First judge whether there are idle resources in the first resource group, if the judgment result is yes, allocate PUCCH resources for the UE in the first resource group, if the judgment result is no, then adjust the first resource group and the second resource group The resource ratio of the resource group, and allocate the PUCCH resource for the UE in the first resource group.

For UEs that need to report RI, allocating PUCCH formats2/2a/2b resources to the UE in the first resource group can ensure that the CQI\PMI and RI resources between the same UE and different UEs will not overlap at all, thus ensuring CQI\PMI and efficient transmission of RI.

Step 15, if the judging result of step 13 is no, allocate PUCCH resources for the UE in the second resource group.

First judge whether there are idle resources in the second resource group, if the judgment result is yes, allocate PUCCH resources for the UE in the second resource group, if the judgment result is no, then adjust the first resource group and the second resource group The resource ratio of the resource group, and allocate the PUCCH resource for the UE in the second resource group.

For UEs that do not need to report RI (especially cell-edge UEs), PUCCH formats 2/2a/2b resources are allocated to UEs in the second resource group. RI resources overlap with the CQI\PMI resources of the UE or other UEs, so the resource With a gain of 2, the utilization rate of frequency band resources is greatly improved. Moreover, since the resource ratio of the two resource groups can be dynamically adjusted according to the situation of the serving UE, it brings great flexibility to resource allocation.

In the embodiment of the present invention, the first resource group may adopt a symmetric allocation method of CQI and RI resources, including an offset allocation method such as a symmetric RI resource and an incremental offset allocation method.

The second resource group can use the following two allocation methods:

Method 1: Configure the RI reporting factor M _RI is not 1, and the CQI\PMI and RI resources of the same UE keep overlapping (that is, the RI time domain offset is 0);

Method 2: The priority symmetrical allocation method allocates RI resources to ensure that the CQI\PMI and RI of the same UE do not overlap. After CQI\PMI occupies half of the resources of the second resource group, that is, CQI\PMI and RI have completely occupied the entire second resource group. For the resources of the second resource group, the resource positions allocated as RI in the resource group are allocated to the CQI\PMI of the new UE, and the RI of the new UE overlaps with the CQI\PMI of the original UE.

When the first resource group adopts offset allocation methods such as symmetric RI resources, and the second resource group adopts the method of keeping the CQI\PMI and RI resources of the same UE overlapping, its resource allocation is as shown in Figure 2. When the first resource group When the incremental offset allocation method is adopted, and the second resource group adopts the method that the CQI\PMI and RI of the same UE do not overlap, its resource allocation is shown in Figure 3. When the first resource group adopts the offset allocation method such as symmetric RI resources, When the second resource group uses the same UE's CQI\PMI and RI resources to keep overlapping, its resource allocation is shown in Figure 4. When the first resource group uses the incremental offset allocation method, the second resource group uses the same UE When the CQI\PMI and RI resources overlap, the resource allocation is shown in Figure 5.

It can be seen from the above processing that in the technical solution of the embodiment of the present invention, the PUCCH resources to be allocated and formatted as 2/2a/2b are divided into a first resource group and a second resource group, wherein the first resource group is used to ensure the same The CQI/PMI and RI of the UE do not overlap, and ensure that the CQI/PMI and RI between different UEs do not overlap. The second resource group is used to ensure that the CQI/PMI between different UEs does not overlap; it is determined that the UE needs to be allocated PUCCH resources with format 2/2a/2b; judging whether the transmission mode of the UE is TM3, TM4, TM8 or TM9; if the judging result is yes, allocating PUCCH resources for the UE in the first resource group ; If the judgment result is no, allocate PUCCH resources for the UE in the second resource group. It can be seen from the above that by adopting the technical solution of the present invention, when allocating resources for PUCCH formats 2/2a/2b, the utilization rate of frequency band resources can be effectively improved under the premise of ensuring effective reporting of control information CQI\PMI\RI.

A more detailed implementation is given below.

When the UE initially accesses, the flow of the method for allocating resources to the UE is shown in Figure 6, and the specific processing flow is as follows:

Step 61, the eNB receives the RRC establishment request sent by the UE, and then confirms that it needs to allocate PUCCH formats2/2a/2b resources for the UE;

Step 62, acquiring a transmission mode initially configured for the UE;

Step 63, judging whether the acquired transmission mode is TM3, TM4, TM8 or TM9, if the judging result is yes, then go to step 64, if the judging result is no, then go to step 65;

Step 64, judging whether there are idle resources in the first resource group, if the judging result is yes, then go to step 68, if the judging result is no, then go to step 66;

Step 65, judging whether there are idle resources in the second source group, if the judging result is yes, then go to step 69, if the judging result is no, then go to step 67;

Step 66, adjusting the ratio of resources between the first resource group and the second resource group, increasing the ratio of resources in the first resource group;

Step 67, adjusting the ratio of resources between the first resource group and the second resource group, and increasing the ratio of resources in the second resource group;

If neither the first resource group nor the second resource group has idle resources, the allocation fails.

Step 68, allocate PUCCH formats 2/2a/2b resources for the UE in the first resource group;

Step 69, allocate PUCCH formats 2/2a/2b resources for the UE in the second resource group.

When the eNB initiates reconfiguration of the UE transmission mode, the flow of the method for allocating resources to the UE is shown in Figure 7, and the specific processing flow is as follows:

Step 71, when the UE is in the RRC connection state, if the UE requests to switch the transmission mode, confirm that PUCCH formats 2/2a/2b resources need to be allocated for the UE;

Step 72, judging whether the transmission mode of the UE is switched from other modes to TM3, TM4, TM8 or TM9, if the judging result is yes, go to step 73, if the judging result is no, go to step 74;

Step 73, judging whether there are idle resources in the first resource group, if the judging result is yes, then go to step 77, if the judging result is no, then go to step 75;

Step 74, judging whether there are idle resources in the second source group, if the judging result is yes, then go to step 79, if the judging result is no, then go to step 76;

Step 75, adjusting the ratio of resources between the first resource group and the second resource group, increasing the ratio of resources in the first resource group;

Step 76, adjusting the ratio of resources between the first resource group and the second resource group, increasing the ratio of resources in the second resource group;

If neither the first resource group nor the second resource group has idle resources, the allocation fails.

Step 77, releasing the CQI\PMI and RI resources in the second resource group;

Step 78, allocate PUCCH formats 2/2a/2b resources for the UE in the first resource group;

Step 79, releasing the CQI\PMI and RI resources in the first resource group;

Step 710, allocate PUCCH formats 2/2a/2b resources for the UE in the second resource group.

When the UE performs handover, the flow of the method for allocating resources to the UE is shown in Figure 8, and the specific processing flow is as follows:

Step 81, after receiving the handover request from the UE, the eNB confirms that it needs to allocate PUCCH formats 2/2a/2b resources for the UE;

Step 82, acquiring a transmission mode initially configured for the UE;

Step 83, judging whether the acquired transmission mode is TM3, TM4, TM8 or TM9, if the judging result is yes, then go to step 84, if the judging result is no, then go to step 85;

Step 84, judging whether there are idle resources in the first resource group, if the judging result is yes, then go to step 88, if the judging result is no, then go to step 86;

Step 85, judging whether there are idle resources in the second source group, if the judging result is yes, then go to step 89, if the judging result is no, then go to step 87;

Step 86, adjusting the ratio of resources between the first resource group and the second resource group, increasing the ratio of resources in the first resource group;

Step 87, adjusting the ratio of resources between the first resource group and the second resource group, and increasing the ratio of resources in the second resource group;

If neither the first resource group nor the second resource group has idle resources, the allocation fails.

Step 88, allocate PUCCH formats 2/2a/2b resources for the UE in the first resource group;

Step 89, allocate PUCCH formats 2/2a/2b resources for the UE in the second resource group.

When the UE needs to recover from the uplink out-of-sync state, the flow of the method for allocating resources to the UE is shown in Figure 9, and the specific processing flow is as follows:

Step 91, when the UE is in the RRC connection state but the uplink is out of synchronization, if the UE needs to recover from the uplink out of synchronization state, confirm that PUCCH formats 2/2a/2b resources need to be allocated to the UE;

Step 92, acquiring a transmission mode initially configured for the UE;

Step 93, judging whether the acquired transmission mode is TM3, TM4, TM8 or TM9, if the judging result is yes, then go to step 94, if the judging result is no, then go to step 95;

Step 94, judging whether there are idle resources in the first resource group, if the judging result is yes, then go to step 98, if the judging result is no, then go to step 96;

Step 95, judging whether there are idle resources in the second source group, if the judging result is yes, then go to step 99, if the judging result is no, then go to step 97;

Step 96, adjusting the ratio of resources between the first resource group and the second resource group, increasing the ratio of resources in the first resource group;

Step 97, adjusting the ratio of resources between the first resource group and the second resource group, and increasing the ratio of resources in the second resource group;

If neither the first resource group nor the second resource group has idle resources, the allocation fails.

Step 98, allocate PUCCH formats 2/2a/2b resources for the UE in the first resource group;

Step 99, allocate PUCCH formats 2/2a/2b resources for the UE in the second resource group.

Correspondingly, an embodiment of the present invention also provides a resource allocation device, the structure of which is shown in FIG. 10 , including:

The resource division unit 101 is configured to divide the PUCCH resources to be allocated and formatted as 2/2a/2b into a first resource group and a second resource group, wherein the first resource group is used to ensure the CQI/PMI and RI of the same UE do not overlap, and ensure that the CQI/PMI and RI between different UEs do not overlap, and the second resource group is used to ensure that the CQI/PMI between different UEs do not overlap;

An allocation determining unit 102, configured to determine that a PUCCH resource with a format of 2/2a/2b needs to be allocated to the UE;

A mode judging unit 103, configured to judge whether the transmission mode of the UE is TM3, TM4, TM8 or TM9;

The first resource allocation unit 104 is configured to allocate PUCCH resources for the UE in the first resource group when the determination result of the mode determination unit 103 is Yes;

The second resource allocation unit 105 is configured to allocate PUCCH resources for the UE in the second resource group when the determination result of the mode determination unit 103 is No.

Preferably, the allocation determination unit 102 specifically includes:

The establishment request receiving subunit is used to receive the RRC establishment request sent by the UE;

The first allocation confirmation subunit is configured to confirm that the PUCCH resource with the format of 2/2a/2b needs to be allocated to the UE after the establishment request receiving subunit receives the RRC establishment request.

Preferably, the allocation determination unit 102 specifically includes:

a handover request receiving subunit, configured to receive a handover request from the UE;

The second allocation confirming subunit is configured to confirm that the PUCCH resource with the format 2/2a/2b needs to be allocated to the UE after the handover request receiving subunit receives the handover request.

Preferably, the allocation determination unit 102 is specifically used to confirm that the UE needs to be allocated PUCCH formats 2/2a/2b when the UE is in the RRC connection state but the uplink is in an out-of-sync state, if the UE needs to recover from the uplink out-of-sync state resource.

Preferably, the mode judging unit 103 specifically includes:

a transmission mode acquiring subunit, configured to acquire a transmission mode initially configured for the UE;

The mode judgment subunit is used to judge whether the transmission mode acquired by the transmission mode acquisition subunit is TM3, TM4, TM8 or TM9.

Preferably, the allocation determination unit 102 is specifically configured to confirm that the UE needs to be allocated PUCCH resources with format 2/2a/2b if the eNB initiates reconfiguration of the UE transmission mode when the UE is in the RRC connection state.

More preferably, the mode judging unit 103 is specifically configured to judge whether the transmission mode of the UE is switched from other modes to TM3, TM4, TM8 or TM9.

Preferably, the first resource allocation unit 104 specifically includes:

The first idle resource judging subunit is used to judge whether there are idle resources in the first resource group;

The first resource allocation subunit is configured to allocate PUCCH resources for the UE in the first resource group when the judgment result of the first idle resource judgment subunit is Yes;

The first resource adjustment subunit is configured to adjust the resource ratio between the first resource group and the second resource group when the judgment result of the first idle resource judgment subunit is No;

The second resource allocation subunit is configured to allocate PUCCH resources for the UE in the first resource group after the first resource adjustment subunit adjusts the resource ratio between the first resource group and the second resource group.

Preferably, the second resource allocation unit 105 specifically includes:

The second idle resource judging subunit is used to judge whether there are idle resources in the second resource group;

The third resource allocation subunit is configured to allocate PUCCH resources for the UE in the second resource group when the judgment result of the second idle resource judgment subunit is Yes;

The second resource adjustment subunit is configured to adjust the resource ratio between the first resource group and the second resource group when the judgment result of the second idle resource judgment subunit is No;

The fourth resource allocation subunit is configured to allocate PUCCH resources for the UE in the second resource group after the second resource adjustment subunit adjusts the resource ratio between the first resource group and the second resource group.

The above description shows and describes a preferred embodiment of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various Various other combinations, modifications, and environments can be made within the scope of the inventive concept described herein, by the above teachings or by skill or knowledge in the relevant field. However, changes and changes made by those skilled in the art do not depart from the spirit and scope of the present invention, and should all be within the protection scope of the appended claims of the present invention.

Claims (18)

1. a kind of resource allocation methods, it is characterised in that including：

By to be allocated, form for 2/2a/2b physical uplink control channel PUCCH resource be divided into first resource group and Secondary resource group, wherein first resource group are used for the channel quality instruction/pre-coding matrix instruction for ensureing same user terminal UE It is not overlapping between CQI/PMI and order instruction RI, and ensure that the CQI/PMI between different UE is not overlapping with RI, Secondary resource group For ensureing that the CQI/PMI between different UE is not overlapping；

It is determined that needing to distribute the PUCCH resource that form is 2/2a/2b for UE；

Whether the transmission mode for judging the UE is TM3, TM4, TM8 or TM9；

If the determination result is YES, then in the first resource group it is the UE distribution PUCCH resource；

It is the UE distribution PUCCH resource in the Secondary resource group if judged result is no；

First resource group is using CQI and RI resource symmetrical distribution methods；

Secondary resource group uses following two kinds of distribution methods：

Method one：Configuration RI reports the factor not to be 1, and same UE CQI/PMI and RI resource keeps overlapping；

Method two：Distribute RI resources, it is ensured that same UE CQI/PMI and RI be overlapping, CQI PMI take Secondary resource group Resource reached after half, i.e. CQI/PMI and RI have occupied the resource of whole Secondary resource group completely, in the resource group The allocated resource location for RI distributes to new UE CQI/PMI, and new UE RI is overlapping with original UE CQI/PMI.

2. the method as described in claim 1, it is characterised in that it is determined that needing to distribute the PUCCH moneys that form is 2/2a/2b for UE Source, is specifically included：

If the radio resource control RRC for receiving UE transmissions sets up request, it is 2/2a/2b's that confirmation, which is needed for UE distribution forms, PUCCH resource.

3. the method as described in claim 1, it is characterised in that it is determined that needing to distribute the PUCCH moneys that form is 2/2a/2b for UE Source, is specifically included：

After the handover request of the UE is received, confirm to need to distribute the PUCCH resource that form is 2/2a/2b for UE.

4. the method as described in claim 1, it is characterised in that it is determined that needing to distribute the PUCCH moneys that form is 2/2a/2b for UE Source, is specifically included：

When UE be in RRC connection status, but it is up be in desynchronizing state when, if UE need from uplink loss state recover, really Recognizing needs to distribute PUCCH formats 2/2a/2b resources for UE.

5. the method as described in claim 2~4 any claim, it is characterised in that judging the transmission mode of the UE is No is TM3, TM4, TM8 or TM9, is specifically included：

It is retrieved as the transmission mode of the UE initial configurations；

Judge whether the transmission mode got is TM3, TM4, TM8 or TM9.

6. the method as described in claim 1, it is characterised in that it is determined that needing to distribute the PUCCH moneys that form is 2/2a/2b for UE Source, is specifically included：

When UE is in RRC connection status, if base station eNB is initiated to match somebody with somebody UE transmission modes again, confirmation needs to distribute form for UE For 2/2a/2b PUCCH resource.

7. method as claimed in claim 6, it is characterised in that whether the transmission mode for judging the UE is TM3, TM4, TM8 Or TM9, specifically include：

Judge the transmission mode of the UE whether by other pattern switchings to TM3, TM4, TM8 or TM9.

8. the method as described in claim 1, it is characterised in that in the first resource group be the UE distribution PUCCH moneys Source, is specifically included：

Judge in first resource group whether available free resource；

If the determination result is YES, then in the first resource group it is the UE distribution PUCCH resource；

If judged result is no, the resource ratio of adjustment first resource group and Secondary resource group；And

It is the UE distribution PUCCH resource in the first resource group.

9. the method as described in claim 1, it is characterised in that in the Secondary resource group be the UE distribution PUCCH moneys Source, is specifically included：

Judge in Secondary resource group whether available free resource；

If the determination result is YES, then in the Secondary resource group it is the UE distribution PUCCH resource；

If judged result is no, the resource ratio of adjustment first resource group and Secondary resource group；And

It is the UE distribution PUCCH resource in the Secondary resource group.

10. a kind of resource allocation device, it is characterised in that including：

Resource division unit, for by be allocated, form be 2/2a/2b physical uplink control channel PUCCH resource First resource group and Secondary resource group are divided into, wherein first resource group is used to ensure that same user terminal UE channel quality refers to Show/not overlapping between pre-coding matrix instruction CQI/PMI and order instruction RI, and ensure the CQI/PMI and RI between different UE Not overlapping, Secondary resource group is used to ensure that the CQI/PMI between different UE is not overlapping；

First resource group is using CQI and RI resource symmetrical distribution methods；

Secondary resource group uses following two kinds of distribution methods：

Method one：Configuration RI reports the factor not to be 1, and same UE CQI/PMI and RI resource keeps overlapping；

Method two：Distribute RI resources, it is ensured that same UE CQI/PMI and RI be overlapping, CQI PMI take Secondary resource group Resource reached after half, i.e. CQI/PMI and RI have occupied the resource of whole Secondary resource group completely, in the resource group The allocated resource location for RI distributes to new UE CQI/PMI, and new UE RI is overlapping with original UE CQI/PMI；

Determining unit is distributed, the PUCCH resource that form is 2/2a/2b is distributed for UE for determining to need；

Mode determination, for judging whether the transmission mode of the UE is TM3, TM4, TM8 or TM9；

First resource allocation unit, for when the judged result of mode determination is to be, being in the first resource group The UE distributes PUCCH resource；

Secondary resource allocation unit, for when the judged result of mode determination is no, being in the Secondary resource group The UE distributes PUCCH resource.

11. device as claimed in claim 10, it is characterised in that distribution determining unit is specifically included：

Request receiving subelement is set up, the radio resource control RRC for receiving UE transmissions sets up request；

First distribution confirms subelement, for after foundation request receiving subelement receives RRC foundation requests, confirming that needs are The PUCCH resource that UE distribution forms are 2/2a/2b.

12. device as claimed in claim 10, it is characterised in that distribution determining unit is specifically included：

Handover request receiving subelement, the handover request for receiving the UE；

Second distribution confirms subelement, for after handover request receiving subelement receives handover request, confirmation to be needed for UE Distribute the PUCCH resource that form is 2/2a/2b.

13. device as claimed in claim 10, it is characterised in that distribution determining unit, specifically for being in RRC connections as UE State, but it is up be in desynchronizing state when, if UE need from uplink loss state recover, confirmation need for UE distribute PUCCH Formats 2/2a/2b resources.

14. the device as described in claim 11~13 any claim, it is characterised in that mode determination is specifically wrapped Include：

Transmission mode obtains subelement, the transmission mode for being retrieved as the UE initial configurations；

Mode decision subelement, for judge transmission mode obtain the transmission mode that gets of subelement whether be TM3, TM4, TM8 or TM9.

15. device as claimed in claim 10, it is characterised in that distribution determining unit, specifically for being in RRC connections as UE During state, if base station eNB is initiated to match somebody with somebody UE transmission modes again, confirm to need to distribute the PUCCH moneys that form is 2/2a/2b for UE Source.

16. device as claimed in claim 15, it is characterised in that mode determination, the biography specifically for judging the UE Whether defeated pattern is by other pattern switchings to TM3, TM4, TM8 or TM9.

17. device as claimed in claim 10, it is characterised in that first resource allocation unit is specifically included：

First idling-resource judgment sub-unit, for judge in first resource group whether available free resource；

First resource distributes subelement, for the judged result in the first idling-resource judgment sub-unit for when being, described the It is the UE distribution PUCCH resource in one resource group；

First resource adjusts subelement, for when the judged result of the first idling-resource judgment sub-unit is no, adjusting first The resource ratio of resource group and Secondary resource group；

Secondary resource distributes subelement, the money for adjusting subelement adjustment first resource group and Secondary resource group in first resource It is the UE distribution PUCCH resource in the first resource group after the ratio of source.

18. device as claimed in claim 10, it is characterised in that Secondary resource allocation unit is specifically included：

Second idling-resource judgment sub-unit, for judge in Secondary resource group whether available free resource；

Information resources distribute subelement, for the judged result in the second idling-resource judgment sub-unit for when being, described the It is the UE distribution PUCCH resource in two resource groups；

Secondary resource adjusts subelement, for when the judged result of the second idling-resource judgment sub-unit is no, adjusting first The resource ratio of resource group and Secondary resource group；

4th resource allocation subelement, the money for adjusting subelement adjustment first resource group and Secondary resource group in Secondary resource It is the UE distribution PUCCH resource in the Secondary resource group after the ratio of source.