CN101616418A - A kind of method of resource reuse - Google Patents
A kind of method of resource reuse Download PDFInfo
- Publication number
- CN101616418A CN101616418A CN200810127511A CN200810127511A CN101616418A CN 101616418 A CN101616418 A CN 101616418A CN 200810127511 A CN200810127511 A CN 200810127511A CN 200810127511 A CN200810127511 A CN 200810127511A CN 101616418 A CN101616418 A CN 101616418A
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- relay
- resource
- data
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- user terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of method of resource reuse, comprising: base station or relay station are reused a relay area Relay zone or are inserted the interior resource of district Access zone to a plurality of subordinate relay and/or a plurality of user terminal to transmit data.The present invention is by reasonable division and utilize spatial character, has solved owing to introduce the problem of the running time-frequency resource utilance decline that brings behind the relaying in the system, has guaranteed the coverage of relay station simultaneously, and resource reuse is simple.
Description
Technical field
The present invention relates to a kind of method of resource reuse, relate in particular to when in OFDM (OrthogonalFrequency Division Multiplexing OFDM) system, having RS (Relay Station relay station) method that the running time-frequency resource of Relay zone (relay area) and Access zone (inserting the district) is reused.
Background technology
The goal in research of B3G/4G is to compile connecting systems such as honeycomb, fixed wireless access, nomadic, radio area network, in conjunction with complete IP network, being respectively the user under high speed and low speed mobile environment provides peak rate to reach the wireless transmission capability of 100Mbps and 1Gbps, and realize the seamless connection of cellular system, regional wireless network, broadcasting, telstar communication, make human realize " anyone realizes communicating by letter of any way with all other men at any time and any place ".Relay (relaying) technology can be used as effective measures and should use, and the covering that the Relay technology both can increase the sub-district also can increase cell capacity.After introducing the Relay technology, can cause more problem, as the utilization of resources problem that needs further investigation.
The running time-frequency resource management is extremely important for ofdm communication system, particularly for the network of introducing RS.In the double bounce system, will give UT (User Terminal user terminal) data of transmission generally speaking, at first be transmitted to RS at Relay zone by BS (Base Station base station), not (for example UT does not just receive at all) that this moment, UT stopped to receive often, be transmitted to UT by RS at Access zone again, the shared running time-frequency resource of this double bounce system is at most the twice that does not have the system of RS, and this has caused the decline of resource utilization.
At present, research for resource reuse is a focus, but the research of the resource reuse mode when existing for Relay is less, present system all is the mode that adopts according to interferometry, but be not real resource reuse, just determine whether reusing resource according to the size of disturbing, resource reuse can bring interference in various degree, and this shortcoming this invention problem that will solve just.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of resource reuse, solved the problem that resource utilization descends behind the relaying of introducing.
In order to address the above problem, the invention provides a kind of method of resource reuse, comprising:
Base station or relay station are reused a relay area Relay zone or are inserted the interior resource of district Access zone to a plurality of subordinate relay and/or a plurality of user terminal to transmit data.
Further, described base station or relay station send data by described Relay zone to its subordinate relay; Described base station or relay station by described Access zone to its user terminal to transmit data of administering.
Further, when an one subordinate relay sent data, the resource of reusing on this Relay zone sent data to other a plurality of subordinate relay by the resource on the Relay zone for base station or relay station; Base station or relay station when user terminal to transmit data that it is administered, are reused resource on this Access zone to other a plurality of user terminal to transmit data by the resource on the Access zone.
Further, base station or relay station, are reused the resource on this Relay zone, to the user terminal to transmit data of its administration when its subordinate relay sends data by the resource on the Relay zone on Access zone;
Base station or relay station, are reused the resource on this Access zone when the user terminal to transmit data of its administration by the resource on the Access zone on Relay zone, send data to its subordinate relay.
Further, described resource reuse adopts the space division multiplexing of many code words, single codeword space division multiplexing or code division multiplexing to realize.
Further, when adopting the space division multiplexing of many code words to send data, at first data are divided into groups, each is organized and uses the space division multiplexing mode to send corresponding data to relay station that has taken identical running time-frequency resource or user terminal between the data, and data use code division multiplexing to send corresponding data to relay station that has taken identical running time-frequency resource or user terminal in each group.
Further, when adopting the single codeword space division multiplexing to send data, utilize different area of space to send corresponding data to relay station that has taken identical running time-frequency resource or user terminal.
Further, when adopting code division multiplexing to send data, utilize different sign indicating number resources to send corresponding data to relay station that has taken identical running time-frequency resource or user terminal.
Compared with prior art, the present invention by reasonable division, utilize spatial character, solved owing to introduce the problem that the running time-frequency resource utilance brought behind the relaying descends in the system, guaranteed the coverage of relay station simultaneously, resource reuse is simple.
Description of drawings
Fig. 1 is the interior resource reuse schematic diagram of zone of the embodiment of the invention.
Fig. 2 is the resource reuse schematic diagram between the zone of the embodiment of the invention.
Fig. 3 is the execution schematic diagram of the resource reuse of the embodiment of the invention.
Embodiment
The present invention further sets forth the method for a kind of resource reuse of the present invention in order to solve the drawback that conventional solution exists by following specific embodiment, below embodiment is described in detail, but not as a limitation of the invention.
Use resource reuse method of the present invention, for the resource reuse in the Relay zone, when BS or RS send data by some RS of subordinate of the resource on the Relay zone in its administration, also need other RS in this BS or RS administration to send data, then this BS or RS reuse resource on the described Relayzone to these RS transmission data;
For the resource reuse in the Access zone, when BS or RS send data by some UT of the resource on the Access zone in its administration, also need other UT in this BS or RS administration to send data, then this BS or RS reuse resource on the described Access zone to these UT transmission data;
For the resource reuse between Relay zone and Access zone, when BS or RS send data by some RS of the resource on the Relay zone in its administration, this BS or RS also will send data to the UT in its administration, then this BS or the RS resource of reusing on the Relay zone sends data (originally UT receives data in Access zone, and is present owing to having used multiplexing method of the present invention to carry out multiplexing at Relay zone) to these UT; Certainly can be conversely between Access zone and Relay zone, when BS or RS send data by some UT of the resource on the Access zone in its administration, this BS or RS also will send data to the RS in its administration, and then this BS or RS reuse resource on the Access zone to these RS transmission data (originally RS receives data in Relay zone).
In addition, need explanation, for the resource reuse between Relay zone and Access zone, specifically be Access zone resource is reused or the saying that the resource of Relay zone is reused, be which zone to be given resource by system earlier be reference, that is, in Relay zone, send data if RS is given resource by system earlier, this moment, higher level BS or RS were exactly the resource of reusing Relay zone on Access zone, and vice versa.
As shown in Figure 1, in Relay zone (or Access zone), BS when its subordinate RS (or UT) carries out data transmission or m level RS when its a plurality of RS of subordinate (or UT) carry out data transmission, adopt MC-SDM (space division multiplexing of many code words), SDM (single codeword space division multiplexing) or CDM (code division multiplexing) that Relay zone (or Access zone) is carried out resource reuse.
As shown in Figure 2, between Relay zone and Access zone, BS or RS by its Relay zone when the RS of its subordinate carries out data transmission, BS or RS also will send data to its UT that administers by Access zone, and then described BS or RS can adopt MC-SDM, SDM or CDM to reuse to Access zone the resource allocation of Relay zone; Described BS or RS also can adopt MC-SDM, SDM or CDM to reuse to Relay zone the resource allocation of Access zone.
As shown in Figure 3, be the execution schematic diagram of the resource reuse of the embodiment of the invention.In system, stipulate: according to different situations (in Relay zone or the Access zone, between Relay zone and the Access zone), use certain multiplex mode and carry out resource reuse and finish data transmission, specifically carry out as follows:
S1, system are to occur in Relay zone or the Access zone according to resource reuse, or both of these case is suitable for different processing modes between Relayzone and the Access zone; For the resource reuse in Relay zone or the Access zone, carry out S2; For the resource reuse between Relay zone and Access zone, carry out S3;
S2, BS or RS when its some RS of subordinate carries out data transmission, adopt corresponding multiplex mode to reuse the interior resource of Relay zone by its Relay zone, and RS carries out data transmission to other subordinates, carries out S4;
When BS or RS carry out data transmission by some UT of its Access zone in its administration, adopt corresponding multiplex mode to reuse the interior resource of Access zone, other UT in its administration carry out data transmission, carry out S4;
S3, BS or RS by its Relay zone when its some RS of subordinate carries out data transmission, described BS or RS can adopt corresponding multiplex mode to reuse to its Access zone the resource allocation of its Relay zone, and the UT of resource in its administration that described like this BS or RS reuse on the Relay zone sends data;
Described BS or RS also can adopt corresponding multiplex mode to reuse to Relay zone the resource allocation of Access zone, carry out S4;
S4 selects corresponding multiplex mode for use, as: MC-SDM, SDM or CDM, carry out resource reuse, if select the MC-SDM mode, handle by S5; If select the SDM mode, handle by S6; If select the CDM mode, handle by S7;
S5 when resource reuse adopts MC-SDM, utilizes empty branch mode that data are divided into groups, and between each group data, utilizes the RS or the UT that have taken identical running time-frequency resource between empty branch mode differentiation group;
For data in the group, data in armed certain group are utilized RS or the UT that has taken identical running time-frequency resource in the different sign indicating number resource-area groupings, other groups can be utilized RS or the UT that has taken identical running time-frequency resource in sign indicating number resource identical with this group or the grouping of different sign indicating number resource-area, carry out S8;
This sentences an application example and illustrates, at first hypothesis utilizes empty branch mode to be divided into 2 groups, owing to adopted empty branch, can distinguish these 2 has organized, so these 2 groups can be used identical resource on the time-frequency bidimensional, and it is multiplexing to carry out sign indicating number with the sign indicating number resource of quadrature on group 1 running time-frequency resource, and the running time-frequency resource of group 2 can also can be with to carry out sign indicating number multiplexing with organizing 1 different sign indicating number resource with organizing 1 sign indicating number resource;
S6 when resource reuse adopts SDM, utilizes area of space to distinguish RS or the UT that has taken identical running time-frequency resource between data flow between the data flow, promptly in identical running time-frequency resource RS or UT are sent corresponding data flow at different area of space respectively, carries out S8;
S7 when resource reuse adopts CDM, utilizes the sign indicating number resource to distinguish RS or the UT that has taken identical running time-frequency resource, promptly in identical running time-frequency resource RS or UT is carried out the data transmission with different sign indicating number resources respectively, carries out S8;
S8 according to corresponding resource reuse mode, carries out data transmission.
Above-described resource reuse method, for the communication system that does not have relay station, for example existing communication system the present invention is suitable equally, only be equivalent to existence multiplexing in the Access zone this moment, promptly by UT resource in BS application Access zone, BS can send data to a plurality of UT on the resource in this Access zone then, and different UT utilize empty branch or sign indicating number to assign to multiplexing.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1, a kind of method of resource reuse is characterized in that, comprising:
Base station or relay station are reused a relay area Relay zone or are inserted the interior resource of district Access zone to a plurality of subordinate relay and/or a plurality of user terminal to transmit data.
2, the method for claim 1 is characterized in that,
Described base station or relay station send data by described Relay zone to its subordinate relay; Described base station or relay station by described Access zone to its user terminal to transmit data of administering.
3, method as claimed in claim 2 is characterized in that,
When an one subordinate relay sent data, the resource of reusing on this Relay zone sent data to other a plurality of subordinate relay by the resource on the Relay zone for base station or relay station;
Base station or relay station when user terminal to transmit data that it is administered, are reused resource on this Access zone to other a plurality of user terminal to transmit data by the resource on the Access zone.
4, method as claimed in claim 2 is characterized in that,
Base station or relay station, are reused the resource on this Relay zone, to the user terminal to transmit data of its administration when its subordinate relay sends data by the resource on the Relay zone on Access zone;
Base station or relay station, are reused the resource on this Access zone when the user terminal to transmit data of its administration by the resource on the Access zone on Relay zone, send data to its subordinate relay.
5, as the described method of arbitrary claim among the power 1-4, it is characterized in that,
Described resource reuse adopts the space division multiplexing of many code words, single codeword space division multiplexing or code division multiplexing to realize.
6, method as claimed in claim 5 is characterized in that,
When adopting the space division multiplexing of many code words to send data, at first data are divided into groups, each is organized and uses the space division multiplexing mode to send corresponding data to relay station that has taken identical running time-frequency resource or user terminal between the data, and data use code division multiplexing to send corresponding data to relay station that has taken identical running time-frequency resource or user terminal in each group.
7, method as claimed in claim 6 is characterized in that,
When adopting the single codeword space division multiplexing to send data, utilize different area of space to send corresponding data to relay station that has taken identical running time-frequency resource or user terminal.
8, method as claimed in claim 6 is characterized in that,
When adopting code division multiplexing to send data, utilize different sign indicating number resources to send corresponding data to relay station that has taken identical running time-frequency resource or user terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810127511A CN101616418A (en) | 2008-06-25 | 2008-06-25 | A kind of method of resource reuse |
| PCT/CN2009/070475 WO2009155795A1 (en) | 2008-06-25 | 2009-02-19 | Method for multiplexing time-frequency resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810127511A CN101616418A (en) | 2008-06-25 | 2008-06-25 | A kind of method of resource reuse |
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| CN101616418A true CN101616418A (en) | 2009-12-30 |
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| CN200810127511A Pending CN101616418A (en) | 2008-06-25 | 2008-06-25 | A kind of method of resource reuse |
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| WO (1) | WO2009155795A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9332558B2 (en) | 2011-01-25 | 2016-05-03 | Huawei Technologies Co., Ltd. | Method for allocating radio resources in relay cell, base station, and system |
| CN109565763A (en) * | 2016-11-26 | 2019-04-02 | 华为技术有限公司 | Data transmission method, device and system |
| CN110392430A (en) * | 2018-04-18 | 2019-10-29 | 成都鼎桥通信技术有限公司 | A kind of Un interface resource distribution method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8774019B2 (en) * | 2005-11-10 | 2014-07-08 | Apple Inc. | Zones for wireless networks with relays |
| CN1996785B (en) * | 2006-01-06 | 2012-05-09 | 华为技术有限公司 | Forwarding system and its method for the broadband wireless access |
| CN101141172B (en) * | 2006-09-07 | 2012-08-15 | 华为技术有限公司 | Transmission method and transmission system of wireless relay system |
| CN101345544B (en) * | 2007-07-09 | 2012-10-10 | 电信科学技术研究院 | Method and system for wireless transmission adopting Relay supported frame structure |
-
2008
- 2008-06-25 CN CN200810127511A patent/CN101616418A/en active Pending
-
2009
- 2009-02-19 WO PCT/CN2009/070475 patent/WO2009155795A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9332558B2 (en) | 2011-01-25 | 2016-05-03 | Huawei Technologies Co., Ltd. | Method for allocating radio resources in relay cell, base station, and system |
| CN109565763A (en) * | 2016-11-26 | 2019-04-02 | 华为技术有限公司 | Data transmission method, device and system |
| CN110392430A (en) * | 2018-04-18 | 2019-10-29 | 成都鼎桥通信技术有限公司 | A kind of Un interface resource distribution method |
| CN110392430B (en) * | 2018-04-18 | 2022-06-17 | 成都鼎桥通信技术有限公司 | Un interface resource allocation method |
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| Publication number | Publication date |
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| WO2009155795A1 (en) | 2009-12-30 |
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