CN201341239Y - Wireless communication system for realizing resource allocation - Google Patents
Wireless communication system for realizing resource allocation Download PDFInfo
- Publication number
- CN201341239Y CN201341239Y CNU2008202339000U CN200820233900U CN201341239Y CN 201341239 Y CN201341239 Y CN 201341239Y CN U2008202339000 U CNU2008202339000 U CN U2008202339000U CN 200820233900 U CN200820233900 U CN 200820233900U CN 201341239 Y CN201341239 Y CN 201341239Y
- Authority
- CN
- China
- Prior art keywords
- base station
- module
- resource
- group
- memory module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The utility model provides a wireless communication system for realizing resource allocation. A base station portion of the system comprises a trans-receiver module, a memory module and a processor module, wherein the trans-receiver module is used to transmit group calling signals, receive group calling requests and control messages; the memory module is applied to record current group calling resource information of adjacent common-frequency base stations and the base station; and the processor module is utilized to allocate wireless resources for group calls and individual calls and maintain and update data of the memory module. A terminal of the system includes a trans-receiver module, a memory module and a processor module, wherein the trans-receiver module is used to transmit and receive wireless signals interactive with the base station; the memory module is applied to store current wireless resources of the terminal; and the processor module is utilized to read from the memory module and control the trans-receiver module to correctly receive signals according to current calling resource parameters. The utility model is capable of avoiding collision of the wireless resources when performing calling resource reservation and allocation. Moreover, when group calling requests newly arrives at the base station, the system can rapidly allocate required resources for the group calling requests.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of wireless communication system of realizing the resource allocation of identical networking.
Background technology
In wireless communication system, be wireless terminal Resources allocation in the network by the central resource allocation module.In this invention, generic term " resource " is interpreted as " Radio Resource ", for the OFDMA system, be meant frequency and/or the time resource reserved for wireless terminal or distributed in order to communicate with the base station, in CDMA (code division multiple access) system, Radio Resource also comprises the orthogonalization spread spectrum code resources, and in SDMA (space division multiple access) system, Radio Resource also comprises space resources.With the OFDMA system is example, the least unit of Radio Resource can be called a Resource Unit, is made of at interval a subcarrier and its symbol time that is positioned.When carrying out wireless resource allocation, the base station with the set that one or more Resource Unit constituted, is distributed to the some or a certain group terminals that communicate with according to certain rule.This paper is called Resource Block with this sets of resource units.The base station that associated terminal takies this Resource Block and its sub-district, place communicates, up to receiving a new resource allocation message, perhaps the Resource Block pattern of making an appointment according to certain and base station reconfigure rule, switch on the new Resource Block and communicate with the base station.
When two sub-districts have been received the call request that comes from switch simultaneously, if do not adopt certain negotiation mechanism between the base station, then when two base stations respond this call request, distribute carrying out call resources according to its own current Radio Resource state independently.This mode of carrying out the call resources distribution independently of one another by the base station can take place adjacent with the call resources collision phenomenon between the frequency base station inevitably.This situation betides two sub-districts usually when having received the group calling request that comes from switch simultaneously, and under a variety of situations, the group calling signal need be broadcasted with bigger power in the base station, so that group calling information can effectively cover whole sub-district.Under the situation of identical networking, when the group call resource piece generation of being disposed when the Resource Block that is configured to the group call resource of adjacent base station frequently and this base station is completely or partially overlapping, then in the sub-district wherein near some group call member of two cell boarders, if can't adopt mode that certain useful signal merges effectively utilizes the group calling signal of neighbor base station, and can't adopt certain to disturb the algorithm that suppresses that this influence is eliminated simultaneously, then the group calling signal of adjacent base station may produce stronger interference to active user's useful group calling signal.
In addition, if the base station then possibly can't be made significant response rapidly for new group calling request not for the group calling request that may arrive reserves enough channels and power resource.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of wireless communication system of realizing resource allocation:
The base station portion of described system comprises: Transceiver Module is used to send the group calling signal, receives group calling request and control information; Memory module is used to write down adjacent current group call resource information with frequency base station and this base station; Processor module is used to a group calling and a speechminute to join Radio Resource, the data of maintenance and updated stored device module;
The terminal part of described system comprises: Transceiver Module is used to send and the mutual wireless signal of reception and base station; Memory module is used for storage terminal current wireless resource; Processor module is used for reading and according to the correct received signal of current call resources parameter control Transceiver Module from memory module.
Further, the memory module of described base station portion comprises that at least a record is adjacent with the submodule 1 of the current group call resource information in frequency base station and the submodule 2 of the current group call resource information in minute book base station.Described submodule 1 can be used to write down the reservation group call resource information of all adjacent frequency together base stations, this base station and distributed the group calling resource information; Described submodule 2 can be used to write down the reservation group call resource information of this base station and distribute the group calling resource information.The processor module of base station portion can also carry out the concurrent processing of a plurality of group calling signals according to the group calling of the distribution resource information of this base station of described submodule 2 records.
Beneficial effect of the present invention is:
Between the base station by the group calling resource information of distribution in mutual this base station and/or reserved group call resource information, reserve and divide timing carrying out call resources, avoid the collision of Radio Resource, with the QoS of user in the assurance group as far as possible.
2. the homogeneous frequency adjacent base station is reserved group call resource respectively, so that when the group calling request of the new arrival of base station appearance, rapidly for it distributes required power and Resource Block, can reach and finish the purpose that group calling is set up fast.
Description of drawings
Fig. 1 is the schematic diagram of the call resources distribution system in the embodiment of the invention.
Fig. 2 is the time-frequency resources schematic diagram of the OFDMA system in the embodiment of the invention;
Fig. 3 is the structural representation of the cordless communication network of the identical networking in the embodiment of the invention;
Fig. 4 is the flow chart that the group call resource of a base station in the embodiment of the invention distributes;
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram of the communication system of a realization resource allocation of the present invention.User terminal 1 in this wireless communication system is when communicating with base station 2, base station 2 is according to the requirement of its upper-layer functionality node such as switch or controller, for certain the class cluster user in its sub-district carries out resource allocation, resource described here can comprise channel resource or power resource, perhaps is the combination of said two devices.Calling can be an audio call, and perhaps video call also can be the clear data business, or the combination of multiple business type.
In this wireless communication system, user terminal 1 comprises that a transceiver 13 sends and receive the wireless signal 3 of base station 2.User terminal 1 comprises that a processor module 12 is used for carrying out according to the resource that base station 2 is disposed the transmission and the reception of signal.User terminal 1 also comprises the memory module 11 that is used to store its current Radio Resource of working, and memory module 11 links to each other with processor module 12.Processor module 12 reads current call resources parameter from memory module 11, be used to control Transceiver Module 13, correct receive from the group calling signal that belongs to this user terminal 1 of base station 2.
Be the flow process that example describes resource allocation in detail with an ofdma communication system of realizing resource allocation more below.Its time-frequency resources of ofdma communication system as shown in Figure 2, the rectangular element of a minimum has represented to be in a symbol time (laterally) interior subcarrier (vertically) at interval, we are referred to as a time-frequency lattice, perhaps Resource Unit, it has represented the least unit of time-frequency resources in this system, the time-frequency resources that generally will have fixed size is regarded a subchannel as, and with its least unit as resource allocation.The base station is for the call request Resources allocation time, feature according to different call business, for it distributes appropriate time-frequency resources and suitable power, exhale professional QoS to satisfy, avoid causing the waste of bandwidth and power resource simultaneously as far as possible, call business can be the individual calling business, also can be group-calling service, and each base station can be supported a plurality of concurrent group callings simultaneously.Fig. 2 has provided the resource allocation conditions of concurrent three group callings under a certain base station, can see, the Radio Resource of three group callings is assigned on the different Resource Block, and the Resource Block that belongs to different group callings may be made of one or more subchannel.
Suppose to have in this OFDMA system three and have the adjacent of same radio frequency frequency range with the frequency base station, as shown in Figure 3.Need to prove that Fig. 3 is the signal of the system of an identical networking only, and in practice, may there be one or more neighbor base station in current base station, also may exists with mixing the network configuration that coexists with the adjacent base station of alien frequencies frequently.In the OFDMA of identical networking shown in Figure 3 system, all exist in the cellular cell of base station 1 to base station 3 and belong to same group user, be that user 1 is to user 7, indicated user's access base station herein with the border of sub-district, each sub-district is according to the state of system and own resource, for the group calling of this group distributes suitable channel resource.The shared T/F pattern of these resources will be notified to the user who belongs to this group in this sub-district in some way.The user who belongs to this group will receive and resolve the useful data of this group on indicated subchannel after correctly receiving the group calling signaling.Can see, when each base station all adopts the mode of broadcasting to send the group calling signal, in order to make all usefulness that are positioned at this sub-district can effectively receive the signal that belongs to its group per family, the base station will be carried out descending group calling signal and be sent with the power that can effectively cover the interior user of all these groups in this sub-district.In some cases, when neighbor base station distribute group call resource to have partly or completely identical sub-channel pattern the time, be in the user of cell edge, as shown in FIG. user 2 and user 4, and user 3 and user 5, may produce more serious mutual interference phenomenon.When the base station adopts the multi-antenna beam figuration to send the group calling signal, also unidirectional interference problem may appear.Unidirectional or two-way interference problem but the wireless communication system of this embodiment can effectively be eliminated between the overlapping adjacent co-frequency cell that causes of group call resource.It carries out flow process that group calling exhales resource allocation as shown in Figure 4, and the base station utilizes the adjacent group call resource information of sending with base station frequently, and the reservation group call resource that retrains this base station distributes.To produce the step of reserving group call resource to this base station below describes.
At first, according to the parameter configuration of network, obtain adjacent list collection I (step S301) with the frequency base station.Variable i is initialized as 1 (step S302), promptly choose adjacent with first base station in the station list frequently, obtain adjacent with the group calling of the distribution resource information Ua (i) in the base station 1 frequently, with and the group call resource information Ur (i) (seeing step S303) that reserves.Judge whether to have obtained all adjacent group call resource information (step S304) afterwards with the frequency base station, as not being, then continue to extract next adjacent with the group call resource information of base station frequently, until finishing whole adjacent traversal (step S4305) with all base stations among the collection of base stations I frequently.
After having finished the obtaining of for all adjacent group call resource information with base station frequently, this base station is according to its current resource status (step S306), and the information of Resources allocation of all these base stations and reservation group call resource information, take to dodge algorithm, carry out the configuration of reservations (step S307) of resource for the new group calling request that may arrive.Here, reservation mode for group call resource, can from the still unappropriated sets of sub-channels in this base station, choose adjacent with all with the distributing the group calling sets of sub-channels and reserve the resource pattern that the group calling sets of sub-channels does not have common factor fully of base station frequently, with the purpose of the adjacent complete quadrature of any group call resource with the frequency base station of the group calling subchannel that reaches current reservation with all.Also can be under the situation of current wireless resource anxiety, select as far as possible one with the adjacent resource pattern that less overlapping ratio takes place with the group call resource of base station frequently.Or, according to current resource situation, directly abandon this group call resource and reserve, and after the load of waiting system is reduced to certain level, carry out the reservation of group call resource once more, or the like.That is to say that the crucial part of present embodiment is, utilize and adjacently perhaps reserve group call resource information, perhaps utilize the reservation constraints of this two information simultaneously as group call resource with the group calling of the distribution resource information of base station frequently.
Claims (2)
1, a kind of wireless communication system of realizing resource allocation is characterized in that,
The base station portion of described system comprises: Transceiver Module is used to send the group calling signal, receives group calling request and control information; Memory module is used to write down adjacent current group call resource information with frequency base station and this base station; Processor module is used to a group calling and a speechminute to join Radio Resource, the data of maintenance and updated stored device module;
The terminal part of described system comprises: Transceiver Module is used to send and the mutual wireless signal of reception and base station; Memory module is used for storage terminal current wireless resource; Processor module is used for reading and according to the correct received signal of current call resources parameter control Transceiver Module from memory module.
2, system according to claim 1 is characterized in that, the memory module of described base station portion comprises that at least a record is adjacent with the submodule 1 of the current group call resource information in frequency base station and the submodule 2 of the current group call resource information in minute book base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202339000U CN201341239Y (en) | 2008-12-31 | 2008-12-31 | Wireless communication system for realizing resource allocation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202339000U CN201341239Y (en) | 2008-12-31 | 2008-12-31 | Wireless communication system for realizing resource allocation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201341239Y true CN201341239Y (en) | 2009-11-04 |
Family
ID=41236781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202339000U Expired - Lifetime CN201341239Y (en) | 2008-12-31 | 2008-12-31 | Wireless communication system for realizing resource allocation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201341239Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052079A (en) * | 2013-01-17 | 2013-04-17 | 中兴通讯股份有限公司 | Method and base station for interference coordination in LTE (Long Term Evolution) clustering communication system |
| WO2014082444A1 (en) * | 2012-11-30 | 2014-06-05 | 北京信威通信技术股份有限公司 | Group resource scheduling method and system during cluster communication |
| CN107872892A (en) * | 2016-09-28 | 2018-04-03 | 中兴通讯股份有限公司 | A kind of wireless resource allocation methods and device |
-
2008
- 2008-12-31 CN CNU2008202339000U patent/CN201341239Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082444A1 (en) * | 2012-11-30 | 2014-06-05 | 北京信威通信技术股份有限公司 | Group resource scheduling method and system during cluster communication |
| US9844066B2 (en) | 2012-11-30 | 2017-12-12 | Beijing Xinwei Telecom Technology Inc. | Method and system for scheduling group resources during trunking communication |
| CN103052079A (en) * | 2013-01-17 | 2013-04-17 | 中兴通讯股份有限公司 | Method and base station for interference coordination in LTE (Long Term Evolution) clustering communication system |
| CN107872892A (en) * | 2016-09-28 | 2018-04-03 | 中兴通讯股份有限公司 | A kind of wireless resource allocation methods and device |
| CN107872892B (en) * | 2016-09-28 | 2023-04-18 | 中兴通讯股份有限公司 | Wireless resource allocation method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101772167A (en) | Resource allocation method in wireless communication system and system | |
| CN101772038B (en) | Method for clustering districts, communication network and resource scheduling system | |
| CN101868017B (en) | A kind of method and apparatus realizing CoMP downlink communication | |
| CN101828359B (en) | A method for coordinating the resources between cells | |
| CN101964980B (en) | Method and device for coordinating inter-cell interference | |
| CN101778479B (en) | Resource scheduling method and resource scheduling device | |
| CN103731924A (en) | Transceiver apparatus | |
| CN1997217B (en) | Resource management method and switching method of the wireless mobile communication system | |
| CN101686549A (en) | Resource allocation method | |
| US20020155839A1 (en) | Allocation of control channel in a communication system | |
| CN107251631A (en) | Obtain the distributed control method of fair Radio Resource access | |
| JP2012182792A (en) | Mobile communication system and remote wireless unit clustering method therefor | |
| CN102308656B (en) | Methods and systems for user selection in wireless communication networks | |
| CN101765165B (en) | Base station and access control method for cellular wireless communication | |
| CN102067649B (en) | Method and device for configuring time slots for a buffer region among multiple cell clusters | |
| CN102084676A (en) | Permutation device and method having improved resource granularity for wireless communications | |
| CN105451255A (en) | Processing method and processing device of district interference management strategy | |
| CN107770869A (en) | The collocation method and device of information of radio resource allocation | |
| CN103634799A (en) | Cognitive radio system-based spectrum allocation method and equipment | |
| CN106162654B (en) | Power LTE network frequency distribution and interference coordination method based on service isolation | |
| CN101925185A (en) | Interference suppression method of relay cellular network, base station and network system | |
| CN106561066B (en) | The method and apparatus that one of wireless communication reduces network delay | |
| CN107172635B (en) | The method and system of data transmission | |
| CN201341239Y (en) | Wireless communication system for realizing resource allocation | |
| CN102905270B (en) | Communication method and device for frequency division duplexing (FDD) system and base station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091104 |
|
| CX01 | Expiry of patent term |