WO2011109968A1 - Pucch的无线资源分配方法及无线资源管理器 - Google Patents
Pucch的无线资源分配方法及无线资源管理器 Download PDFInfo
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- WO2011109968A1 WO2011109968A1 PCT/CN2010/073551 CN2010073551W WO2011109968A1 WO 2011109968 A1 WO2011109968 A1 WO 2011109968A1 CN 2010073551 W CN2010073551 W CN 2010073551W WO 2011109968 A1 WO2011109968 A1 WO 2011109968A1
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- pucch
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/12—Fixed resource partitioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0016—Time-frequency-code
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Definitions
- the present invention relates to the field of communications, and in particular to a radio resource allocation method and a radio resource manager for a PUCCH (Physical Uplink Control Channel).
- PUCCH Physical Uplink Control Channel
- the first type includes three formats, namely, format 1, format la, format lb, and the second category includes 3 The format, ie format2, format2a, format2b.
- the first type of PUCCH is used to transmit SR (Scheduling Request) and ACK (Acknowledge), NACK (Non-Acknowledge) signaling, where formatl is used to transmit SR, and format la is used to transmit single code.
- the ACK/NACK of the word stream, formatlb is used to transmit the ACK/NACK of the dual code word stream.
- the second type of PUCCH is mainly used for transmitting CQI (Channel Quality Indicator), where format2 is only used for transmitting CQI, format2a is used for transmitting CQI and ACK/NACK of single codeword stream simultaneously, and format2b is used for transmitting CQI at the same time. And ACK/NACK for dual code word streams.
- the number of RBs (Resource Blocks) occupied by the formatla and formatlb in the first type of PUCCH in the first time slot is related to the number of downlink control channel elements (CCE, Control Channel Element), which is dynamically changed.
- the number of RBs occupied by the formatl and the second type of PUCCH in the first type of PUCCH in one time slot is allocated to the UE by the base station radio resource manager when the UE (user terminal) accesses the network.
- the related art provides a radio resource allocation scheme in the PUCCH, and the SR resource allocation in the PUCCH is taken as an example.
- the specific implementation process is as follows: At the beginning, the radio resource manager of the base station generates a resource pool, and when the UE accesses the network At this time, the radio resource manager searches the resource pool, finds a resource that is not used, then assigns it to the UE, and sets the resource to the use state.
- the radio resource manager sets the resource to an unused state.
- the above resource allocation scheme has the following drawbacks: Since the demodulation performance of the PUCCH is related to the location of the resource used, the sequential allocation is used in the resource allocation method described above. Or a method of randomly allocating resources, so that the demodulation performance of the PUCCH is not optimal.
- each of the foregoing resource allocation schemes needs to search from one end to find an unused resource each time a resource is allocated to a UE. Therefore, the resource pool needs to be continuously searched, thereby increasing the complexity of the system.
- a primary object of the present invention is to provide a PUCCH radio resource allocation method and a radio resource manager to solve at least the above problems.
- a radio resource allocation method for a physical uplink control channel PUCCH including: a radio resource manager generating a resource pool; and a radio resource manager performing PUCCH resources in a resource pool according to a sequence thereof Sort, and point the pointer to the first PUCCH resource; the radio resource manager allocates the PUCCH resource that the pointer currently points to the terminal, and points the pointer to the next PUCCH resource.
- a radio resource manager including: a resource pool generating module, configured to generate a resource pool; and a sorting module, configured to: generate, according to the physical uplink control channel PUCCH resource in the resource pool Sorting sequentially, and pointing the pointer to the first PUCCH resource; an allocation module, configured to allocate the PUCCH resource currently pointed by the pointer to the terminal, and point the pointer to the next PUCCH resource.
- the radio resource manager points the pointer to the next PUCCH resource after allocating the PUCCH resource to the UE by setting the pointer. When the resource is to be allocated to the next UE, the PUCCH resource currently pointed to is only needed.
- FIG. 1 is a flowchart of a method for allocating radio resources of a physical uplink control channel according to an embodiment of the present invention
- 2 is a schematic flowchart of a radio resource allocation method of a physical uplink control channel according to a preferred embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a radio resource manager according to an embodiment of the present invention
- FIG. 4 is a preferred embodiment of the present invention. Schematic diagram of the wireless resource manager.
- Step S102 A radio resource manager generates a resource pool;
- Step S104 a radio resource manager allocates resources
- the PUCCH resources in the pool are sorted according to the sequence in which they are generated, and the pointer points to the first PUCCH resource; and in step S106, the radio resource manager allocates the PUCCH resource currently pointed by the pointer to the terminal, and points the pointer to the lower A PUCCH resource.
- the radio resource manager points the pointer to the next PUCCH resource after allocating the PUCCH resource to the UE by setting a pointer.
- step S102 includes: the radio resource manager combines the code division resource, the frequency division resource, and the time division resource of the PUCCH to generate a resource pool.
- This embodiment provides a specific implementation of the radio resource manager to generate PUCCH resources and form a resource pool.
- the radio resource manager combines the code division resource, the frequency division resource, and the time division resource to generate the PUCCH resource S according to the performance optimization method, and performs resource allocation according to the sequence of resource generation, thereby further solving the problem in the related technology.
- the demodulation performance of PUCCH is not the best problem, and the cross-distribution of resources is realized, and the demodulation performance of the physical uplink control channel can be improved.
- step S104 includes: the radio resource manager sorts each PUCCH resource in the resource pool according to the sequence in which they are generated; the radio resource manager sorts the sequences in a monotonous order (such as monotonous ascending order or monotonous descending order).
- the subsequent PUCCH resources are labeled; the radio resource manager points the pointer to the PUCCH resource labeled as the starting point of the label.
- the preferred embodiment provides a specific implementation in which the radio resource manager labels each PUCCH resource in the order of generation.
- the method further includes: releasing, by the terminal, the PUCCH resource; and the radio resource manager placing the released PUCCH resource into the recovery pool. In this way, it is ready for subsequent resource recovery.
- the recycling pool is a pre-allocated storage space for storing resources released by the terminal.
- the method further includes: when the number of remaining PUCCH resources in the resource pool reaches a predetermined number, the radio resource manager sorts the PUCCH resources in the reclaim pool according to their labels in a monotonous order; The PUCCH resource in the sorted recycle pool is merged into the resource pool.
- This embodiment provides a specific implementation for resource recovery. When the number of remaining resources in the resource pool reaches a predetermined number, the resources in the recovery pool may be merged into the resource pool for reuse, so that physical uplink control channel resources are not wasted, and physical uplink control channels in the system can be made. The demodulation performance achieves optimal performance.
- the radio resource manager merges the PUCCH resources in the sorted recycle pool into the resource pool.
- the radio resource manager puts the PUCCH resources in the sorted recycle pool into the front of the PUCCH resource pointed by the pointer in the resource pool.
- the Wireless Resource Manager points the pointer to the first PUCCH resource in the merged resource pool.
- sorting before merging can directly be in the sorted recycling pool.
- the PUCCH resource is placed in front of the pointer, and the pointer is redirected to the first resource in the merged resource pool, thereby realizing the reuse of the released resources, so that the demodulation performance of the physical uplink control channel in the system can be optimized. .
- the method for determining that the number of remaining PUCCH resources in the resource pool reaches a predetermined value is: determining that the label of the PUCCH resource currently pointed to by the 40 reaches a predetermined label.
- This embodiment provides a specific implementation for determining that the number of remaining PUCCH resources in the resource pool reaches a predetermined value.
- the PUCCH resources in the resource pool are numbered in a monotonically increasing order from 1 to 1.
- the predetermined number may be [N/2] ( [] is a rounding symbol), and the above predetermined label may be [N/2].
- Step 1 The radio resource manager generates a resource pool according to code division, frequency division, and time division combination, and labels each resource in a monotonous sequence.
- the pointer points to the resource at the beginning of the sequence number;
- Step 2 When it needs to be allocated to the UE resource, the following operations are performed:
- the radio resource manager allocates the resource currently pointed by the pointer in the resource pool to the UE, and moves the pointer to the next resource;
- Step 3 When a UE releases the resource, the following operations are performed:
- the radio resource manager puts the resource into the recovery pool;
- Step 4 When the pointer points to a specific location in the resource pool, the resource is merged as follows: :
- the wireless resource manager sorts the resources in the recovery pool according to their serial numbers in the monotonous order in step one, and puts the sorted resources in front of the resources pointed to by the pointers in the resource pool, and points the pointers to the merged resources. The beginning of the resource.
- Embodiment 1 In the physical uplink control channel of LTE, an eNodeB (base station) allocates resources for transmitting CQI to the accessed UE. As shown in Figure 2, the following steps are included: Step 1. Generate a resource pool of CQI according to the following formula (1):
- R is the frequency division resource of CQI, and the value is 1, 2, 3, 4; ⁇ is the time division resource of CQI, and the value is 1 , 2, 3, 4; is the code division resource of CQI, and the values are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12;
- the values are traversed to get all the S forming resource pools.
- the resources in the resource pool are numbered in a monotonically increasing order from 1 to the resource with the label 1.
- the value of R above is 1, 2, 3, and 4, indicating that four RBs are selected from all available frequency division resources (RBs), and the numbers are renumbered according to the sequence numbers of the four RBs. Resource block.
- Step 2 When a resource needs to be allocated to the UE, allocate the resource pointed to by the pointer to the UE, and point the pointer to the next resource.
- Step 3 When a UE releases the resource, the radio resource manager puts the resource released by the UE back into the recovery pool.
- Step 4 When the sequence number of the resource pointed to by the pointer is equal to half of the maximum sequence number N, that is, [N/2], the resources in the recovery pool are sorted according to the sequence number from small to large, and the sorted resources are placed in the resource pool.
- Embodiment 2 In the physical uplink control channel of the LTE, the eNodeB allocates the resources of the SR transmission to the accessed UE. As shown in FIG. 2, the method includes the following steps: Step 1: Generate a resource pool of the SR according to the following formula (2) :
- R is the frequency-divided resource of the SR and takes a value of 1; ⁇ denotes the time-division resource of the SR, which takes the value 1, 2, 3, 4; The code division resource of the SR takes a value from 1 to 18.
- the resources in the resource pool start from 1. Labels are ordered in monotonically increasing order, with pointers to resources labeled 1. When the resources are generated, the frequency division resources, the time division resources, and the code division resources are mixed and matched according to the optimal demodulation order.
- Step 2 When it is required to allocate resources to the UE, allocate the resource pointed to by the pointer to the UE, and point the pointer to the next resource.
- Step 3 When a UE releases the resource, the radio resource manager puts the resource released by the UE back into the recovery pool.
- Step 4 When the sequence number of the resource pointed to by the pointer is equal to half of the maximum sequence number N, that is, [N/2], the sequence numbers of the resources of the collection pool are sorted from small to large, and the resources sorted by ⁇ ba are placed in the resource pool. At the same time, point the pointer to the smallest serial number of the sorted resource.
- FIG. 3 is a schematic structural diagram of a radio resource manager according to an embodiment of the present invention.
- the radio resource manager includes: a resource pool generating module 10, configured to generate a resource pool; and a sorting module 20, configured to sort the PUCCH resources in the resource pool according to the sequence in which they are generated, and Pointing to the first PUCCH resource; the allocating module 30 is configured to allocate the PUCCH resource currently pointed by the pointer to the terminal, and point the pointer to the next PUCCH resource.
- the resource pool generation module 10 combines the code division resource, the frequency division resource, and the time division resource of the PUCCH to generate the resource pool.
- the radio resource manager 10 includes: a combining module 102, configured to combine a code division resource, a frequency division resource, and a time division resource corresponding to a signaling type according to the following formula to generate a PUCCH resource.
- the resource pool 104 is configured to store all PUCCH resources S generated by the combining module 102.
- the sorting module 20 includes: a resource sorting module 202, configured to sort each PUCCH resource in the resource pool 104 according to a sequence in which they are generated; a labeling module 204, configured to perform a monotonous order (monotonically increasing or monotonous decreasing order) Labeling the PUCCH resource after the _ sequence; the pointer module 206 is configured to point the pointer to the PUCCH resource labeled as the starting point of the label.
- the radio resource manager further includes: a reclaim pool 40, configured to store PUCCH resources released by the terminal.
- the radio resource manager further includes: a reclaiming resource sorting module 50, configured to: when the number of remaining PUCCH resources in the resource pool reaches a predetermined number, the PUCCH resources in the reclaiming pool 40 are labeled according to the monotonous sequence
- the sorting module 60 is configured to merge the PUCCH resources in the sorted recovery pool 40 into the resource pool 104.
- the merging module 60 includes: a loading module 602, configured to put the PUCCH resource in the sorted recycling pool into the front of the PUCCH resource pointed by the pointer in the resource pool; wherein the pointer module 206 is further used to put The module 602 points the PUCCH resource in the sorted recycle pool to the front of the PUCCH resource pointed by the pointer in the resource pool, and points the pointer to the first PUCCH resource in the merged resource pool.
- the reclaiming resource ranking module 50 determines that the number of remaining PUCCH resources in the resource pool 104 reaches a predetermined number is: determining that the label of the PUCCH resource currently pointed by the pointer reaches a predetermined label.
- the radio resource manager generates the PUCCH resource in sequence. After allocating a PUCCH resource to the UE, the pointer points to the next PUCCH resource. When the resource is to be allocated to the next UE, only the PUCCH resource currently pointed to is allocated. Give it a chance, you don't need to perform a resource search every time you allocate it, saving you time in resource searching;
- the radio resource manager generates PUCCH resources according to the best performance method, and performs resource allocation according to the sequence of resource generation, thereby improving the demodulation performance of the physical uplink control channel;
- the radio resource manager collects and sorts the PUCCH resources released by the terminal, Thereby, the demodulation performance of the physical uplink control channel in the system can be optimized.
- the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
- the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10846813.3A EP2395782B1 (en) | 2010-03-10 | 2010-06-04 | Radio resource manager and method for radio resource allocation of physical uplink control channel |
US13/255,084 US8737331B2 (en) | 2010-03-10 | 2010-06-04 | Method for allocating radio resources of a PUCCH and radio resource manager |
JP2012556363A JP2013521731A (ja) | 2010-03-10 | 2010-06-04 | Pucch無線リソース割り当て方法及び無線リソース管理装置 |
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CN201010134397.5 | 2010-03-10 | ||
CN2010101343975A CN102196573A (zh) | 2010-03-10 | 2010-03-10 | Pucch的无线资源分配方法及无线资源管理器 |
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WO2011109968A1 true WO2011109968A1 (zh) | 2011-09-15 |
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PCT/CN2010/073551 WO2011109968A1 (zh) | 2010-03-10 | 2010-06-04 | Pucch的无线资源分配方法及无线资源管理器 |
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US (1) | US8737331B2 (zh) |
EP (1) | EP2395782B1 (zh) |
JP (1) | JP2013521731A (zh) |
CN (1) | CN102196573A (zh) |
WO (1) | WO2011109968A1 (zh) |
Cited By (2)
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CN102791006A (zh) * | 2012-07-18 | 2012-11-21 | 北京邮电大学 | 通信***中资源分配与管理的方法 |
EP3273719A1 (en) * | 2011-11-18 | 2018-01-24 | Huawei Technologies Co., Ltd. | Radio communication system, base station device and management method thereof |
Families Citing this family (4)
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CN102013961B (zh) * | 2009-11-05 | 2014-04-02 | 电信科学技术研究院 | 一种发送上行反馈信息的方法、***和设备 |
US9003057B2 (en) | 2011-01-04 | 2015-04-07 | Cisco Technology, Inc. | System and method for exchanging information in a mobile wireless network environment |
US9320077B2 (en) * | 2012-07-17 | 2016-04-19 | Innovative Sonic Corporation | Method and apparatus for reducing signaling overhead in a wireless communication network |
EP3738034A1 (en) * | 2018-01-08 | 2020-11-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive application assignment to distributed cloud resources |
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- 2010-06-04 EP EP10846813.3A patent/EP2395782B1/en not_active Not-in-force
- 2010-06-04 US US13/255,084 patent/US8737331B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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US20120063411A1 (en) | 2012-03-15 |
JP2013521731A (ja) | 2013-06-10 |
EP2395782A1 (en) | 2011-12-14 |
CN102196573A (zh) | 2011-09-21 |
US8737331B2 (en) | 2014-05-27 |
EP2395782B1 (en) | 2018-11-28 |
EP2395782A4 (en) | 2017-01-25 |
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