CN108702346A

CN108702346A - Uplink resource allocation

Info

Publication number: CN108702346A
Application number: CN201780005639.0A
Authority: CN
Inventors: 柳光
Original assignee: JRD Communication Shenzhen Ltd
Current assignee: JRD Communication Shenzhen Ltd
Priority date: 2016-02-05
Filing date: 2017-01-19
Publication date: 2018-10-23
Anticipated expiration: 2037-01-19
Also published as: WO2017133471A1; CN108702346B; GB201602123D0; GB2547030A; GB2547030B

Abstract

The invention discloses a kind of effective dispatching methods and device of the uplink communications resources associated with unlicensed wireless frequency spectrum for wireless communication system.The communication resource in preset frequency bandwidth is distributed to multiple wireless communication units in base station at resource block layer and subcarrier levels, base station, which determines, should use resource block layer mapping (for example, block-IFDMA) or subcarrier levels mapping (such as IFDMA) in uplink of multiple wireless communication unit in preset frequency bandwidth.Based on base station determine its should use RB mapping (such as, block-IFDMA) or subcarrier levels mapping (such as, IFDMA), base station respectively in RB layers or subcarrier levels into multiple wireless telecom equipments each provide communication resource distribution instruction.

Description

Uplink resource allocation

Technical field

The embodiment of the present invention relates generally to wireless device, for use the resource block layer of unlicensed spectrum map (such as Block-IFDMA) wireless communication system and subcarrier levels map (such as IFDMA) wireless communication system, and more particularly to The method and wireless device of uplink resource allocation in this wireless communication system.

Background technology

Wireless communication system and network are such as the third generation (third-generation, 3G) mobile communication standard and technology It is well-known.This 3G standard and technology are by third generation cooperative partner program (3G Partnership Project, 3GPP) It is developed.Third generation wireless communication is by general development to support macrocellular mobile phone communications, this macrocell to utilize Gao Gong Rate base station (i.e. NodeB) in relatively large geographical coverage area with wireless communication unit to be communicated.

In general, wireless communication unit or the user equipment (User Equipment, UE) being usually mentioned to, pass through nothing Core net (the Core of gauze Network Subsystem (Radio Network Subsystem, RNS) and 3G cordless communication networks Network, CN) it is communicated.Cordless communication network generally includes multiple wireless network subsystem, each wireless network subsystem One or more cells of network can be attached to and are thus connected to including UE.Each macrocellular RNS further comprises wirelessly The controller of network controller (Radio Network Controller, RNC) type, is operably coupled to one or more A NodeB.Communication system and network develop towards wide-band mobile systems, and third generation cooperative partner program, which has developed, to be used for The evolved universal movement electrical communication system land radio access web (Evolved for being known as mobile access network of Mobile Access Network Universal Mobile Telecommunication System Territorial Radio Access Network, E- UTRAN the solution of long term evolution (Long Term Evolution, LTE)), and the title for mobile core network For System Architecture Evolution (the System Architecture of evolution block core net (Evolved Packet Core, EPC) Evolution, SAE) solution.Macrocell in LTE system by referred to as evolution node B (evolved Node B, ENodeB or eNB) base station supported.

Current cordless communication network is using having permitted wireless frequency spectrum to be operated, wherein the communication to permitting wireless frequency spectrum The multiple access of resource is tightly controlled.Using various more access techniques, such as, but not limited to, frequency division multiplexing, time division multiplexing, code The combination of one or more of multiplexing and space division multiplexing or these technologies, each user of network is divided substantially to be provided frequency spectrum " segment ".Even if these technologies are combined, but with universal, Current telecommunications networks and the future telecommunication of mobile communication The capacity of network is still very limited, especially when using wireless frequency spectrum has been permitted.

Network operator is opening using unlicensed wireless frequency spectrum, to increase or supplement the appearance of its cordless communication network Amount.For example, the communication network based on LTE/LTE high level standards is enhanced downlink, which exists The mechanism for being known as license auxiliary and accessing (Licensed-Assisted-Access, LAA) operated in unlicensed spectrum, such as but It is not limited to, 5GHz Wi-Fi wireless frequency spectrums can increase the current network downlink operated in having permitted wireless frequency spectrum Capacity.This makes the telecommunication network based on LTE for the low-power based on the region regulation power boundary for using carrier wave to polymerize Running in the 5GHz unlicensed spectrums of supplementary cell is possibly realized.

Nevertheless, network operator is not allowed to free access or the use of unlicensed spectrum, because of net Network operator must share unlicensed spectrum, such as, but not limited to, Wi-Fi access points and terminal, medical treatment with other wireless devices Equipment, public utilities instrument, radio equipment are to machinery equipment, internet of things equipment etc..Therefore, network operator and wireless frequency spectrum pipe Just half-way house is reached using unlicensed spectrum between reason mechanism.In order to use unlicensed spectrum, network operator that must abide by Keep various telecommunications regulations.

301 893 V1.7.2 of ETSI EN (2014-07) " Broadband Radio Access Networks at present (BRAN);5GHz high performance RLAN;Harmonized EN covering the essential requirements of article 3.2 of the R&Section 4.3 of TTE Directive " draft standards and Section 4.4 There are two main regulations, wherein when using unlicensed spectrum, each uplink wireless communications unit should abide by uplink The draft standard on road.The 1st article of regulation in Section 4.3 of 301 893 V1.7.2 of ETSI EN (2014-07) describes The output signal of each wireless communication unit must be able to occupy at least the 80% of whole bandwidth.It even ought only 2 resource blocks When (Resource Block, RB) is assigned to a terminal, they must mutually have a distance remote enough, such as positioned at being Command a resource block of wide left end and between another resource block of right end, and it is current they can be located at it is adjacent to each other From anywhere in.

The 2nd article in Section 4.4 of 301 893 V1.7.2 of ETSI EN (2014-07) work(for providing to describe every MHz Rate density is limited to horizontal with some measured by dBm (such as 10dBm), it means that even if only there are one resource blocks (180KHz) need to be to be sent, but UE cannot use total power (such as 23dBm).In order to explore more power, it is expected that reflect Subcarrier in frequency is allocated by the mode for being mapped to " MHz " as much as possible.

RB layers of mapping refer to that any frequency division multiple access (Frequency Division Multiple Access, FDMA) is reflected It penetrates, wherein the communication resource is divided into one or more RB, and subcarrier levels mapping refers to any FDMA mappings, wherein logical Letter resource is assigned to one or more subcarriers.Sub-carrier mapping method another example is so-called local FDMA (Localized FDMA, LFDMA), wherein the subcarrier for distributing to each wireless telecom equipment is allocated contiguously in subcarrier In continuous blocks;Another example of subcarrier levels mapping is so-called intertexture FDMA (Interleaved FDMA, IFDMA), wherein All subcarriers be assigned to wireless telecom equipment but by the subcarrier of predetermined quantity into between-line spacing (for example, can between subcarrier To be equal intervals), other wireless communication units or UE interweave together in not used subcarrier.The last one example is The combination of block-IFDMA, i.e. LFDMA and IFDMA, wherein each wireless communication unit or UE are assigned a sub- carrier set, each Subcarrier integrates comprising two or more sizes as the subset or group (or subcarrier collection) of X subcarrier.Each subset or every group of tool There is the block of continuous dispensing and continuous X subcarrier.Between every group in two or more subcarrier groups is carried out by Y subcarrier Every.It is to be assigned at RB layers or be assigned in subcarrier levels based on the communication resource, block-IFDMA can be considered as subcarrier levels Mapping or the mapping of resource block layer.

However, LAA uplinks are just developing into enhanced LAA uplinks (Uplink, UL), wherein due to the two Defined requirement, and also due to may divided in the form of resource block simultaneously using so-called RB layers mapping, such as, but not limited to Block-IFDMA when with the communication resource or the mapping of so-called subcarrier levels are such as, but not limited to being divided in the form of subcarrier IFDMA or the expectation of block-IFDMA, UL subcarrier when with the communication resource are mapped on the subcarrier not being evenly dividing.L RB Each frame can have large number of subcarrier (for example, for L=100, each RB has 12 continuous subcarriers, Thus there will be 1200 subcarriers).Therefore, the wireless communication unit mapped using subcarrier levels may need multiple intervals Subcarrier, while another wireless communication unit may need the resource block layer mapping of multiple interval RB.It expects to have a kind of simple Communication resource allocation scheme provides effective distribution on resource block layer and/or subcarrier levels for wireless communication unit or UE. For example, by the RB at one or more interval, the RB at one or more groups of intervals, the subcarrier at one or more intervals or one group or more The subcarrier group at group interval and/or the effective communication resource distribution of a combination thereof, are supplied to wireless telecom equipment or UE.

Invention content

The invention content part refers to specific embodiment party for briefly introducing a series of relevant concepts, detailed description Formula.Invention content does not limit the key feature or essential characteristic of the substantive content of the present invention, does not limit the reality of the present invention yet The protection domain of matter content.

The present invention relates to for wireless communication system uplink communications resources associated with unlicensed wireless frequency spectrum Effective dispatching method and device.Base station is distributed the communication resource in preset frequency bandwidth at resource block layer and subcarrier levels and is given Multiple wireless communication units, base station determines should use in uplink of multiple wireless communication unit in preset frequency bandwidth The mapping of resource block layer or subcarrier levels based on FDMA map FDMA.Determine that it should use the mapping of resource block layer still based on base station Subcarrier levels map, each in RB layers or subcarrier levels into multiple wireless telecom equipments provides the communication resource respectively for base station The instruction of distribution.

According to the first aspect of the invention, a kind of method of distribution uplink communications resources is provided, wireless communication system is given Multiple wireless communication units using unlicensed wireless frequency spectrum in the cell of system, the method includes:It is described wireless servicing In the base station of the cell of communication system, uplink communications resources are reserved in preset frequency bandwidth;Wherein, the uplink Link communication resource includes resource block collection and subcarrier collection;The resource block collection includes the resource block at two or more intervals Group, each resource block includes multiple subcarriers in the resource block group;The subcarrier collection includes two or more intervals Subcarrier group;Multiple resource block groups and multiple subcarrier groups interweave in the preset frequency bandwidth;It is serviced to the base station Each wireless communication unit distribute the communication resource, including:When each wireless communication unit will be mapped using resource block layer When, distribution comes from one or more of each resource block group of resource block collection resource block to each wireless communication Unit;When each wireless communication unit will use subcarrier levels to map, distribution comes from each of described subcarrier collection One or more of subcarrier group subcarrier gives each wireless communication unit;And to each wireless communication unit Send the instruction of the respective communication resource allocation for uplink transmission.

Optional as one, the resource block layer mapping includes:Mapping comes from one or more of reserved resource block collection A resource block, for distributing to wireless communication unit;The subcarrier levels map:Mapping comes from reserved subcarrier One or more subcarriers of collection, for distributing to wireless communication unit.

As another optional, there are N number of resource block group, the step of distribution comes from the resource block of each resource block group into One step includes:Distribution comes from a resource block in every group of N number of resource block group, and uplink transmission is used for reach The resource block of quantification needed for wireless communication unit, wherein when the quantification of resource block is more than N, then distribution comes from Another resource block in every group of N number of resource block group of the resource block of volume residual needed for the wireless communication unit; And period duplicate allocation comes from N number of resource block group of any volume residual of the resource block needed for the wireless communication unit Every group in other resource blocks.

Optional, the first resource block, Secondary resource block in every group of N number of resource block group and any other resource as one Block is continuous.Optionally, all resource blocks in every group of N number of resource block group are continuous.

As another optional, there are M sub- carrier wave sets, when each wireless communication unit will be reflected using subcarrier levels Penetrate, and when the quantity of required subcarrier is less than or equal to M, distribution the step of coming from the subcarrier in each subcarrier group into One step includes:Distribution comes from the subcarrier in every group of M sub- carrier wave sets, to reach the required number transmitted for uplink The resource block of amount.Optionally, position of each subcarrier in every group of M sub- carrier wave sets is identical.

It is optional as one, there are M sub- carrier wave sets, when the wireless communication unit will be mapped using subcarrier levels, and And the quantity of required subcarrier is when being more than M, distribution the step of coming from the subcarrier in each subcarrier group, further comprises:It is right In two or more assignment periods:In the first assignment period, distribution comes from a son in every group of M sub- carrier wave sets Carrier wave;In the second assignment period, distribution comes from another subcarrier in every group of M sub- carrier wave sets, to reach described The subcarrier of volume residual needed for wireless communication unit;And period duplicate allocation comes from needed for the wireless communication unit Every group of M sub- carrier wave sets of subcarrier of any volume residual in other subcarriers;Wherein, M sub- carrier wave sets are come from Every group in subcarrier, any another subcarrier and any other subcarrier are continuous.Optionally, for each distribution week Phase, the position of each subcarrier of distribution in every group of M sub- carrier wave sets is identical.It is optional as one, the institute of subcarrier It is the integral multiple of each resource block sub-carriers quantity to need quantity.

Optionally, when wireless communication unit is determined being located near cell edge, determine that the wireless communication unit will It is mapped using subcarrier levels;Otherwise determine that the wireless communication unit will be mapped using resource block layer.

It is optional as one, when the wireless communication unit needs the resource block of a quantity, determine the wireless communication Unit will be mapped using subcarrier levels, and the resource block of the quantity includes being less than subcarrier group quantity or predetermined least resource block threshold value Multiple subcarriers;Otherwise, it determines the wireless communication unit will be mapped using resource block layer.

Optionally, when the estimation transmission power of the required wireless communication unit of uplink transmission is higher than predetermined transmission power When threshold value, determine that the wireless communication unit will be mapped using subcarrier levels.Optionally, when wireless communication unit is determined being located at Near cell edge and when needing the resource block of a quantity, determine that the wireless communication unit should use resource block in subcarrier levels Layer mapping, the resource block of the quantity include multiple subcarriers more than subcarrier group quantity.

Optionally, when distributing the communication resource for each wireless communication unit, it is located at preset frequency bandwidth top and bottom One or more of near zone resource block group or one or more subcarrier groups are first used.It is optional as one, it is every The distribution of the communication resource of a wireless communication unit occupies at least the 80% of preset frequency bandwidth.

Optional as one, the resource block collection is associated with the resource block look-up table of index, and the resource block of index is searched Table indicates that the bitmap resource block in resource block mapping layer distributes, wherein each corresponding wireless communication unit comes from resource Multiple resource blocks of the distribution of block collection are indicated by one or more indexes of resource block look-up table;The method is further wrapped It includes:It is sent, is further comprised to each wireless communication unit:Send the one or more indexes for indicating resource block look-up table Data, as uplink transmit be located at resource block mapping layer at respective communication resource allocation instruction.

As another optional, the subcarrier collection is associated with the subcarrier look-up table of index, the subcarrier of the index Look-up table indicates that the bitmap subcarrier in subcarrier maps layer distributes, wherein each corresponding wireless communication unit comes from son Multiple subcarriers of the distribution of carrier set are indicated by one or more indexes of subcarrier look-up table;The method is further Including:It is sent, is further comprised to each wireless communication unit:Send the one or more ropes for indicating subcarrier look-up table The data drawn are sent, the finger as the respective communication resource allocation being located at subcarrier maps layer transmitted for uplink Show.

Optionally, asking for the resource block for the quantification transmitted for uplink is received from each wireless communication unit It asks.

Optional as one, the subcarrier levels mapping is to be mapped based on IFDMA, and resource block layer mapping is to be based on Block-IFDMA mappings, the method further includes:When each wireless communication unit will be when the resource block layer maps When using block-IFDMA, the resource block come from each resource block group of resource block collection is distributed into each wireless communication Unit;When each wireless communication unit will use IFDMA at the subcarrier maps layer, the sub- load will be come from Subcarrier in each subcarrier group of wave collection distributes to each wireless communication unit, wherein the multiple subcarriers distributed are It is discrete;Or when each wireless communication unit will use block-IFDMA at subcarrier maps layer, it will come from Subcarrier in each subcarrier group of the subcarrier collection distributes to each wireless communication unit, wherein distribute two or Multiple subcarriers are continuous.

It is optional as one, determine the user equipment in the cell edge region of base station institute serving cell quantity and The quantity of user equipment in center of housing estate region, wherein:When the quantity of the user equipment in cell edge region is more than cell When the quantity of user equipment in central area reaches the first predetermined threshold, by reserving one from one or more resource block groups A or multiple resource blocks reduce the resource block collection, to form other the multiple subcarriers for being included in subcarrier concentration;When small When the quantity of user equipment reaches the second predetermined threshold less than the quantity of user equipment in center of housing estate region in area edge region, By from one or more subcarrier groups reserve be equivalent to one or more continuous subcarriers of one or more resource blocks come Increase the resource block collection, to form other the multiple resource blocks for being included in resource block concentration.

Additionally or alternatively, the requested bandwidth of user equipment and small is determined in cell edge region that base station is serviced The requested bandwidth of user equipment in district center region, wherein when the requested bandwidth of user equipment in cell edge region More than when the requested bandwidth of user equipment reaches the first bandwidth threshold value in center of housing estate region, by from one or more Reserve one or more resource blocks in resource block group and reduce resource block collection, with formed be included in subcarrier concentration other are more A subcarrier;When the requested bandwidth of user equipment is asked less than user equipment in center of housing estate region in cell edge region Bandwidth up to the second bandwidth threshold value when, by from one or more subcarrier groups reserve be equivalent to one or more resources One or more continuous subcarriers of block increase the resource block collection, with formed for be included in resource block concentration other are more A resource block.

It is optional as one, it reduces resource block collection and depends on the estimation load of Cell Center User equipment less than cell edge The estimation of user equipment loads;And increases resource block collection and depend on the estimation load of Cell Edge User equipment less than in cell The estimation of heart user equipment loads.

Optionally, load distribution associated with multiple user equipmenies in the cell that base station is serviced is assessed;Reserved Current resource block collection and load distribution imbalance when, update current reservations resource block collection;And by updated reserved resource Block collection is notified to each user equipment.

According to the second aspect of the invention, it includes processor to provide a kind of, the device of storage unit and communication interface, Middle processor unit, storage unit, communication interface are configured as the method for executing distribution uplink communications resources, give channel radio Multiple wireless communication units using unlicensed wireless frequency spectrum in the cell of letter system, the method includes:Described in service In the base station of the cell of wireless communication system, uplink communications resources are reserved in preset frequency bandwidth;Wherein, described Uplink communications resources include resource block collection and subcarrier collection;The resource block collection includes the resource at two or more intervals Block group, each resource block includes multiple subcarriers in the resource block group;The subcarrier collection includes two or more intervals Subcarrier group;Multiple resource block groups and multiple subcarrier groups interweave in the preset frequency bandwidth;It is taken to the base station Each wireless communication unit of business distributes the communication resource, including:When each wireless communication unit will be reflected using resource block layer When penetrating, distribution comes from one or more of each resource block group of resource block collection resource block to each channel radio Believe unit;When each wireless communication unit will use subcarrier levels to map, distribution comes from the every of the subcarrier collection One or more of a sub- carrier wave set subcarrier gives each wireless communication unit;And it is single to each wireless communication Member sends the instruction of the respective communication resource allocation for uplink transmission.Optionally, which is configured to hold Row is as described in the first aspect of the present invention or method as described herein.

According to the third aspect of the invention we, it includes multiple UE, the telecommunication network of multiple base stations, each base station packet to provide a kind of It includes such as the second aspect of the present invention or device as described herein, wherein each base station serves one or more in multiple UE It is a.

According to another aspect of the present invention, a kind of non-transitory computer-readable medium is provided, with what is be stored thereon Computer-readable instruction, for being executed by processor to implement to appoint such as the first aspect of the present invention and/or as described herein What one or more method.

These and other aspects of the invention, feature and advantage become the example described from below and/or in embodiment It obtains it is clear that and will be illustrated with reference to these examples and/or embodiment.

Description of the drawings

In conjunction with the following drawings, by way of example, example of the present invention and/or embodiment will be described, wherein:

Fig. 1 is the schematic block diagram of wireless communication system according to the ... of the embodiment of the present invention;And

Fig. 2 is the communication resource structure being used together with the embodiment of the present invention.

Fig. 3 is the flow chart of an exemplary method according to the ... of the embodiment of the present invention;

Fig. 4 is the communication resource frame structure in frequency domain according to the ... of the embodiment of the present invention;

Fig. 5 is the schematic diagram of the device according to the ... of the embodiment of the present invention used in a base station;And

Fig. 6 is the schematic diagram of the device according to the ... of the embodiment of the present invention in wireless communication unit or UE.

Specific implementation mode

The embodiment being only described by way of example below, these examples, which represent, to be put the invention into practice Preferred embodiment, but they are not the sole mode realized.In the de-scription by the function of illustrated embodiments and structure and operation Exemplary sequence of steps.But identical or equivalent function and operation flow can be completed by different examples.

Inventor has found, can improve logical with the associated uplink of unlicensed wireless frequency spectrum for wireless communication system Believe the distribution and scheduling of resource, uses the RB layers mapping (such as block-IFDMA) in the uplink in preset frequency bandwidth in this way And/or subcarrier levels mapping (such as IFDMA), base station can provide the communication in preset frequency bandwidth in RB layers and subcarrier levels Source is efficiently assigned to multiple wireless communication units or user equipment (UE).According to be determined by base station using RB layer map or It is subcarrier levels mapping, base station effectively provides pass in RB layers or subcarrier levels to each of multiple wireless telecom equipments respectively In the instruction of communication resource distribution.

Wireless communication unit or UE may include or representative is used for any portable computing device of communication.Described Equipment, the example of workable wireless communication unit or UE can be wired or wireless set in some embodiments of method and system It is standby, such as mobile device, mobile phone, terminal, smart phone, portable computing device, such as laptop computer are hand-held to set It is standby, tablet, tablet computer, net book, personal digital assistant, music player and its that wired or wireless communication can be carried out His computing device.

Although have been described about such as, but not limited to subcarrier levels mapping and/or RB layer mapping L-FDMA, IFDMA with Block-IFDMA, it will be understood by those skilled in the art that any RB layers of mapping may include based on RB distribution one or more RB Any mapping structure or model, and the mapping of any subcarrier levels may include being carried based on the one or more sons of subcarrier distribution Any mapping structure or model of wave.In another example, RB layers of mapping can be in preset frequency bandwidth or system bandwidth One or more RB is distributed based on RB, and subcarrier levels mapping can be used in preset frequency bandwidth or system bandwidth One or more subcarriers are distributed based on subcarrier.

Fig. 1 be include core net 102 (or infrastructure of telecommunication), have serve multiple wireless communication unit 108a- The wireless communication system of multiple network node 104a-104m (such as base station eNB) of the cell 106a-106m of 108e (such as UE) Or the schematic diagram of network 100.Multiple network node 104a-104m pass through link connection to core net 102.These links can be Wired or wireless (such as wireless communication link, optical fiber etc.).Core net 102 may include multiple cores network node, network Entity, application server or can carry out with one or more Radio Access Networks including multiple network node 104a-104m Any other network or computing device of communication.

Each cell 106a-106m may include the fringe region or neighbouring one positioned at respective cell 106a or 106m Or multiple UE 108b or 108e.Each cell can have a cell edge region 110a (or 110m), wherein UE 108b (or 108e) it is considered the adjacent edges positioned at cell 106a (or 106m).Cell edge region 110a can be by cell edge threshold value Boundary 112a and cell edge define, and are used wherein the UE 108b in cell edge region 110a are considered as cell edge Family or UE 108b.Edge threshold boundary 112a can think UE based on the power threshold of transmission/reception, wherein eNB 104a 108b is located at cell edge region 110a, for example, because eNB 104a and UE 108b between transmission/reception power be less than and/ Or it is equal to first predetermined transmission/received power threshold.UE 108a or 108c in cell 106a can be considered as position by eNB 104a In center of housing estate region 114a, because transmission/reception power between eNB 104a and UE 108a or 108c can be higher than or wait In second predetermined transmission/received power threshold.First predetermined transmission/received power threshold can be equal to or less than the second predetermined hair Send/received power threshold.

Although only describing two regions in cell 106a, i.e. 112a and 114a, those skilled in the art should Understand may exist multiple regions in cell, wherein the UE in each region can be based on it is various it is one or more it is predetermined send/ Received power threshold and be classified as cell edge region 112a, one or more middle cell region (not shown) and/or Center of housing estate region 114a.Although each region 112a and 114a can be defined by predetermined transmission/received power threshold, It should be appreciated by those skilled in the art that each region 112a and/or 114a can be determined by any other cell attribute or characteristic Justice, for example, radius of society and eNB position etc..

In this example, network node 104a-104m is illustrated as base station, such as, but not limited to, based on advanced LTE Telecommunication network in can be eNB.Each of multiple network node 104a-104m (for example, base station) have footprint (footprint), it to simplify and being such as, but not limited to, is schematically shown in Fig. 1 for serving one or more UE The corresponding circular cell 106a-106m of 108a-108e.UE 108a-108e can be received from wireless communication system 100 and be serviced, Such as sound, video, audio or other communication services.

Wireless communication system or network 100 may include or represent for UE 108a-108e and other equipment, content source Or any one or more communication networks of the communication between connection wireless communication system or the server of network 100.Core net 102 can also include or represent link, coupling or connection to form one or more communications of wireless communication system or network 100 Network, one or more network nodes, entity, element, apps server, server, base station or other network equipments.Net Link or coupling between network node can be wired or wireless (such as wireless communication link, optical fiber etc.).The channel radio Letter system or network 100 and core net 102 may include core network and wireless access network comprising network node or entity Any appropriately combined, the base station of network, access point etc. make UE 108a-108e, wireless communication system 100 and core net 102 Network node 104a-104m, content source and/or be connected between system or the other equipment of network 100 and can communicate.

The example for the cordless communication network 100 that can be used in described equipment, some embodiments of method and system can To be at least one communication network or combinations thereof, including but not limited to, one or more wiredly and/or wirelessly telecommunication networks, one A or multiple cores net, one or more Radio Access Networks, one or more computer networks, one or more data communications Network, internet, telephone network, wireless network, such as WiMAX, WLAN based on merely illustrative example of IEEE802.11 standards And/or Wi-Fi network or Internet protocol (Internet Protocol, IP) network, packet switching network or enhanced point Group exchange network, IP multimedia subsystem (IP Multimedia Subsystem, IMS) network or based on wireless, honeycomb or is defended The communication network of star technology, such as mobile network, global system for mobile communications (Global System for Mobile Communications, GSM), GPRS network, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, W-CDMA), CDMA2000 or the advanced LTE communication networks of LTE/ or any second generation, the third generation, forth generation or the 5th Generation and the communication network etc. for surmounting type.

In the example of fig. 1, which can only be used as example but be not limited to, use downlink With the orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) of uplink channel The advanced LTE communication networks of LTE/ of technology.Downlink may include for by data from one or more eNB 104a-104m It is transferred to one or more communication channels of one or more UE 108a-108e.Usual downlink channel is to be used for transmission number According to communication channel, for example, from eNB 104a to UE 108a.In the advanced LTE communication networks of LTE/, used in downlink More access methods can be orthogonal frequency division multiple access (orthogonal frequency division multiple access, OFDMA)。

Uplink includes for data to be transferred to one or more eNB from one or more UE 108a-108e One or more communication channels of 104a-104m.The uplink of the advanced LTE of LTE/ can use the single load similar with OFDMA Wave frequency division multiple access (single-carrier frequency division multiple access, SC-FDMA) pattern.It is logical Often, uplink channel is the communication channel for being used for transmission data, for example, from UE 108a to base station 108a.It is more in OFDM Carrier-wave transmission is used to carry (carry) data in the form of an ofdm symbol in uplink and downlink channel.For example, UE Uplink channel or downlink channel between 108a and eNB 104a may include or represent one or more narrowband carriers, Wherein each narrowband carrier further comprises multiple narrow-band sub-carriers.This is referred to as multi-carrier transmission, and each narrow-band sub-carriers are used In transmission data in the form of an ofdm symbol.

Uplink and downlink for the advanced LTE networks of LTE/ are each divided into radio frames (for example, each frame can be with It is the length of 10ms), wherein each frame can be divided into multiple subframes.For example, each frame may include 10 equal lengths Subframe, wherein each subframe is made of the multiple time slots (such as 2 time slots) for being used for transmission data.Other than time slot, subframe It may include several additional special fields or OFDM symbol, may include, only as an example, downlink synchronization symbol, extensively Broadcast symbol and/or uplink reference symbols.For OFDMA, minimum resource unit or element are downlinks in time domain The SC-FDMA symbols of OFDM symbol and uplink.

The radio frames that Fig. 2 is wireless communication system 100 for describing referring to Fig.1 when being the advanced LTE networks of LTE/ when The schematic diagram of communication resource grid 200 in the frequency and time-domain of gap 202.Frequency domain in the y-axis of communication resource grid 200, and Time domain is in the x-axis of communication resource grid 200.The communication resource grid 200 of time slot 202 can indicate in frequency domain in multiple carrier waves A carrier wave.Communication resource grid 200 includes multiple RB, wherein each RB 204 can be with the specific carriers in multiple carrier waves Frequency dependence joins.It is N that each carrier wave for uplink communication, which is divided into quantity,_RBOne or more RB, wherein often A RB 204 has multiple subcarriers;It is N that each RB 204, which can have quantity,_SCOne or more subcarriers, wherein per height Carrier wave can be the offset from carrier frequency associated with RB 204.Each carrier wave includes related to one or more RB 204 The N of connection_RB×N_SCA subcarrier (i.e. multiple subcarriers).Each RB 204 can be by the subset of multiple subcarriers in a frequency domain It indicates, such as N_SCA subcarrier, and multiple symbols on time slot 202, such as N_SYMBSymbol, wherein each symbol has one Symbol period.RB 204 defines N_SC×N_SYMBGrid in the frequency and time-domain of a resource unit 206.For RB 204, Resource unit 206 corresponds to N_SCThe N in specific subcarrier and time slot 202 in a subcarrier_SYMBSpecific symbol in a symbol Number.Can distribute to UE the communication resource can be based on communication resource grid 200 and generally according to corresponding carrier wave associated one The form of a or multiple RB/ subcarriers is allocated.The communication resource can be with one or more carrier waves, one or more subcarriers And/or the form of one or more RB describes.

It is actually the similar knot for having some nuances for downlink and the communication resource grid 200 of uplink Structure.For example, for the advanced LTE networks of LTE/ downlink usually using OFDM more access, therefore downlink can when OFDM symbol is used in domain.The uplink of the advanced LTE networks of LTE- accesses uplink usually using SC-FDMA, and Therefore SC-FDMA symbols can use in the time domain.Although can be this feelings for the advanced LTE networks of current LTE/ Condition, it will be appreciated by those skilled in the art that any kind of OFDM/SC-FDMA types can be used to accord in the uplink Number etc..

Please refer to Fig.1 and Fig. 2, in general, in the lte networks, the communication resource can by eNB 104a-104m with carrier wave and/ Or the form of the list of RB 204 distributes to UE 108a-108e.For example, in current LTE network, for distributing in frequency domain Resource smallest dimension unit be bandwidth be 180kHz RB, correspond to N_SC=12 subcarriers, each subcarrier are located at It is deviated from the 15kHz of the associated carrier frequencies of RB.

In current or legacy communications system, eNB 104a-104m can by execute uplink carrier distribution come to UE 108a-108e distribute RB.For licensed spectrum, by dividing between the UE 108a-108b serviced by base station 104a It can use RB, eNB 104a that can simplify and execute uplink carrier distribution.For example, in the lte networks, when carrier resource is unrestricted When processed, eNB 104a can accurately distribute the carrier wave of the quantity and the RB that can be asked with preset condition by UE 108a, preceding The condition of carrying is that the license carrier wave from licensed spectrum is protected by regulation, and the carrier wave of all distribution and distributes to UE 108a RB be clearly workable.In this case, eNB 104a can meet the requirement of UE108a.

In another example, for LTE, the enhanced LAA uplinks in unlicensed spectrum can use one or The F of multiple scheduled 20MHz_BW.For the F of 20MHz_BW, the total L of RB can be 100, be occupied wherein each RB has X=12 subcarrier of 180kHz bandwidth.This means that in F_BWOn distribute to and serviced by eNB 104a there will be eNB 104a 1200 subcarriers of UE 108a-108c.As previously mentioned, for by the predetermined F of each of each eNB 108a-108m controls_BW, Due to 301 893V1.7.2 of ETSI EN (2014-07) " Broadband Radio Access Networks (BRAN);5GHz high performance RLAN;Harmonized EN covering the essential requirements of article 3.2 of the R&Two main rule in Section 4.3 of TTE Directive " draft standards and Section 4.4 It is fixed, wherein each uplink UE 108a-108e should abide by mark when using uplink in unlicensed wireless frequency spectrum Standard, it is expected that UL subcarriers are mapped to by each eNB104a on unevenly spaced subcarrier.

Section 4.3, in first article of prescribed requirement describe each UE 108a-108e output signal allow for occupying it is whole A bandwidth F_BWAt least 80%.Even when only 2 RB are assigned to one in UE 108a-108b, they should be spaced There is distance remote enough, for example, a RB is located at system bandwidth F_BWLeft end, another is located at system bandwidth F_BWRight end.The The power density for describing every MHz is required to be limited in one with the certain level measured by dBm as defined in Article 2 in 4.4 sections (such as 10dBm), it means that or even only need to be sent there are one RB, and each of UE 108a-108e cannot be used Its total power (such as 23dBm), wherein this RB can also have the 180KHz for having spaced X=12 subcarrier in LTE Bandwidth.It, can be with however, when subcarrier is distributed in frequency in a manner of being mapped to " MHz " frequency as much as possible Using total power.

But when the quantity of the RB of distribution is smaller, for example, for cell edge UE in cell edge region 110a 2 RB of 108b, require according to as defined in Article 2, and the maximum allowable output power that UE 108b can be used is 13dBm (=2 ×10dBm).However, it is contemplated that UE 108b are in cell edge region 110a, it may need using total power (such as 23dBm) come ensure in uplink it is better covering or communication performance.

In this case, in order to occupy " MHz " as much as possible, number of subcarriers (the i.e. subcarrier collection of per mhz-bandwidth Size) may need to be reduced even per MHz one or two subcarrier.For example, it is assumed that with per RB X=12 The system of carrier wave, then 2 RB 24 subcarriers of needs, these subcarriers can have 1 or 2 subcarrier in per mhz-bandwidth 20MHz F_BWOn be discontinuously allocated.But such communication resource allocation scheme can cause two major defects. First the disadvantage is that whole bandwidth F_BWThe orphan segments of multiple RB including many unused portions will be split into.Second disadvantage It is that there will be too many possible sub-carrier positions (for example, for every F_BWL=100 RB then may be used per RB X=12 subcarriers Can have 1200 subcarriers), to distribute to this very small subcarrier collection (such as 24 subcarriers).First meeting leads to frequency Rate bandwidth uses bad or inefficiency, second meeting to lead to that a large amount of information bit is generated to carry out each sub-carrier positions Index, this can consume more control channel capacity.

It was found by the inventors that by preset frequency bandwidth F_BWUpper L all RB organizes or is reserved as two types to be more Effectively.First kind RB can be referred to as RB collection comprising in F_BWOn according to frequency partition multiple RB groups.In multiple RB groups Every group may include multiple continuous or coherent RB.On the basis of RB or in the form of entire resource block, which can be by ENB 104a distribute to UE 108a-108c.Therefore, when eNB 104a determine that these UE can use RB layer and map (such as block- When IFDMA), UE 108a-108c can use the RB collection (or first kind RB), wherein RB layers of mapping to have subcarrier collection ruler The quantity of very little or each RB group sub-carriers is assigned to each UE and the integral multiple equal to one or more RB or RB.

The Second Type RB reserved by eNB 104a be used for based on subcarrier by part RB be efficiently assigned to one or Multiple UE.Second Type RB can be referred to as subcarrier collection comprising one or more subcarrier groups or multiple subcarrier groups, Wherein each subcarrier group includes multiple continuous or coherent subcarrier, these subcarriers can be crossed over one or more continuous RB, they do not have to concentrate in first kind RB.Each subcarrier group is in frequency bandwidth F_BWUpper and another subcarrier group is in frequency Upper interval.The subcarrier collection (i.e. Second Type RB) can be preferably configured as covering ratio and keep for RB collection (the i.e. first kind Type RB) the lesser amount of RB of RB quantity.Therefore, can be mapped using subcarrier levels when eNB 104a determine these UE (such as LFDMA or IFDMA and/or block-IFDMA) when, UE 108a-108c can use the subcarrier collection (or Second Type RB).

For example, each subcarrier group may include the subcarrier of a quantity in RB, wherein the subcarrier concentrate any two A sub- carrier wave set interval, is only not limited to as example, and at least 1MHz is (for example, when bandwidth of the RB with 180kHz and each When RB has 12 subcarriers, at least five RB).The subcarrier that subcarrier is concentrated can be used for carrying with the son for distributing to each UE The subcarrier levels of the quantity (i.e. subcarrier collection size) of wave map, such as, but not limited to, IFDMA or block-IFDMA, the wherein number Amount is less than, and is only used as example but is not limited to, the quantity of the subcarrier in 1 RB.

First kind RB (for example, RB collection) and Second Type RB (for example, subcarrier collection) are in frequency bandwidth F_BWOn be interleaved Together, wherein the subcarrier for first kind RB (for example, RB collection) is different from for Second Type RB (for example, subcarrier Collection) subcarrier.

This type RB of eNB 104a is reserved to allow eNB 104a into the UE 104a-104c serviced by eNB 104a Each effectively indicate communication resource distribution.For example, being based on current conventional method, i.e., whole RB are distributed into each UE The RB bitmaps of 108a-108c are indexed, and first kind RB can be indexed.Assuming that compared to by first kind RB (or RB collection) Used RB, there is preferably less by Second Type RB (or t easet ofasubcarriers) RB currently in use, then is carried per height Wave can be mapped to subcarrier assignment bit map, which can easily be indexed to, to allow eNB 104a instructions come from each subcarrier (such as part RB distribution) for the subcarrier collection for distributing to UE 108b.

It can be by the F of 20MHz that the example RB of eNB 104a is reserved_BWOn total quantity be 100 RB be divided into every 5 RB 20 set, and keep for every height in the subcarrier collection (such as Second Type RB) to carry 1 RB in every 5 RB Wave group and 4 RB of residue in every 5 RB are reserved for each RB groups in RB collection (i.e. first kind RB).Which ensure that coming It is about 0.9MHz (=5 × 180KHz) from the minimum range between two subcarriers that the subcarrier concentrates adjacent sub-carrier group, This may conform to laws and regulations requirement when using the spectrum analyzer with 1MHz resolution ratio filters.If it is not, then eNB The optional RB of 104a reserved can be 17 set for being divided into 100 RB every 6 RB, and 1 RB in every 6 RB is pre- Leave each subcarrier group in the subcarrier collection (i.e. Second Type RB) for, it means that between two adjacent sub-carrier groups most Small distance is about 1.08MHz.

Although it have been described that several exemplary RB are reserved, it will be appreciated by those skilled in the art that can be the RB Collection reserves any amount of RB, and can be that the subcarrier collection reserves any amount of RB.It is pre- for the RB collection as optional The quantity of the RB stayed can be more than the quantity of the RB reserved for the subcarrier collection.For example, can be that the RB concentrates each RB groups pre- A RB more than first is stayed, and can be that the subcarrier concentrates each subcarrier group to reserve the second one or more RB, wherein first Multiple RB are more than the second one or more RB.However, this be those skilled in the art should understand that.

Referring now to the simplified flowchart of Fig. 3, executed in the device or processing module (not shown) in the eNB 104a of Fig. 1 Step 302 arrives step 308.For simplicity, it is described below and please refers to Fig.1 and the reference label table of Fig. 2, wherein Fig. 1 and Fig. 2 Show similar or similar component, UE, base station etc..ENB 104a-104m and wireless communication unit or UE 108a-108e can be by Subcarrier levels mapping or RB layers of mapping (for example, IFDMA and/or block-IFDMA) are configured so as to access unlicensed wireless frequency Spectrum.Each eNB104a-104m can in preset frequency bandwidth or unlicensed wireless frequency spectrum multiple preset frequency bandwidth Each of on uplink communications resources are reserved at RB layers and subcarrier levels.Each eNB 104a-104m can use phase Same or different preset frequency bandwidth.

Pass through the RB collection and subcarrier collection by preset frequency bandwidth partition for weave in frequency, each eNB 104a The uplink communications resources of preset frequency bandwidth can be reserved.For example, the RB collection may include two or more spaced RB groups, these RB groups are spaced in preset frequency bandwidth, and wherein each RB includes multiple subcarriers.Each of RB groups Multiple subcarriers are also different in RB.The subcarrier collection may include two or more spaced subcarrier groups, wherein Each subcarrier group is spaced in preset frequency bandwidth, and the subcarrier in each subcarrier group is different from each RB groups Multiple subcarriers.In preset frequency bandwidth, RB groups interweave and/or replace with subcarrier group.

Each in the UE 108a-108c serviced by eNB 108a can send the request of the communication resource of a quantity, It is in the UE 108a-108c each using unlicensed spectrum carry out uplink data transmission needed for.In step In 302, eNB 104a from each in one or more UE 108a-108c receive the UE using unlicensed wireless frequency spectrum into The request of a quantity communication resource needed for the transmission of row uplink.

For each in the UE 108a-108c serviced by eNB 104a and the request communication resource, eNB 104a The communication resource is distributed to each in UE 108a-108c to be used in preset frequency bandwidth.In step 304, when described Each UE 108a or 108c will be when using RB layer to map (such as block-IFDMA) in preset frequency bandwidth, eNB 104a can be with Each UE 108a or 108c are distributed to by the RB in each RB groups by RB collection, in the RB Layer assignment communication resources. In step 306, when each wireless communication unit or UE 108b will use subcarrier levels mapping (such as IFDMA or block- When IFDMA), eNB 104a distribute to each wireless communication by the subcarrier in each subcarrier group by subcarrier collection Unit or UE 108b, to distribute the communication resource in subcarrier levels.In step 308, eNB 104a are to each wireless communication unit Or UE 108a-108c send its corresponding communication resource distribution, so that the UE108a-108c is used in an uplink transmission.

In method 300, when wireless communication unit or UE 108b are determined or are estimated to be located near cell edge or cell When in the cell edge region 110a of 106a, eNB 104a can determine that wireless communication unit or UE 108b will use subcarrier Layer mapping (for example, IFDMA).For example, based on the transmission between eNB 108a and UE 108b/reception power, as the eNB and UE When transmission/reception power between 108b is less than or equal to the power threshold of cell edge region 110a, UE 108b can be determined In the cell edge region 110a of cell 106a.Otherwise, eNB 104a can determine wireless communication unit or UE 108a or 108c will use RB layers of mapping (such as based on block-IFDMA).

When wireless communication unit or UE 108b or 108c need to be less than the RB of a quantity of predetermined minimum RB threshold values, eNB 104a can also determine that wireless communication unit or UE 108b or 108c will use subcarrier levels to map (for example, IFDMA).Otherwise, ENB 104a determine that wireless communication unit or UE 108c will use RB layers of mapping (such as based on block-IFDMA).Work as uplink The estimation transmission power of wireless communication unit or UE 108b or 108c needed for transmission, which is required, increases to UE 108b or 108c When more than the predetermined transmission power threshold value that cannot achieve when using RB layers of mapping (for example, block-IFDMA), eNB 104a also can be true Determining wireless communication unit or UE 108b or 108c will use subcarrier levels to map (for example, IFDMA).

Additionally or alternatively, when wireless communication unit or UE 108a are determined being located at center of housing estate areas adjacent or neighbour Closely, when or in intermediate or center cell region 114a, eNB 104a can determine that wireless communication unit or UE 108a should use RB Layer mapping (for example, block-IFDMA).

Fig. 4 is the preset frequency bandwidth F shown at eNB 104a_WThe reserved or distribution structure 400 of the upper communication resource Schematic diagram.For simplicity, it is described below with reference to Fig. 1 and 2, wherein Fig. 1 refers to similar or similar with the reference label of Fig. 2 Component, UE, base station etc..As before with reference to described by figure 3, by by F_WIt is divided into bandwidth F_WWith the ruler of frequency interlacing together It is very little be the RB of N integrate 402a-402n and size can be in bandwidth F as subcarrier collection 406a-406m, the eNB 104a of M_WIt is upper reserved Or distribution uplink communications resources 402a-402n and/or 406a-406m.

It may include quantity as one or more RB groups 402a-402n at the interval of N that RB, which integrates 402a-402n, in frequency Bandwidth F_WOn be interval.Preferably, can there are two or more or multiple intervals RB groups 402a-402n.RB groups 402a Including one or more RB 404a-404f, each in wherein RB 404a-404f includes multiple subcarrier (not shown). Figure 4, it is seen that the RB 404a-404f in each RB groups are adjacent to each other in the example shown and/or in bandwidth F_WUpper company It is continuous.Multiple subcarriers of each RB are different from multiple subcarriers of another RB in RB 404a-404f.Although each RB groups 402a-402n is in the example shown the RB with identical quantity, it will be appreciated by those skilled in the art that one or more RB groups It can be with the RB of different number, and/or the subcarrier with every RB different numbers.

It may include quantity as one or more subcarrier groups at the interval of M, sub-carriers that subcarrier, which integrates 406a-406m, Each of group 406a-406m is in bandwidth F_WUpper interval.Preferably, can there are two or multiple intervals subcarrier group 406a- 406m.Each subcarrier group 406a may include adjacent to each other and in bandwidth F_WMultiple subcarrier 408a- of upper consecutive intervals 408g.Multiple subcarriers in each subcarrier group 406a-406m are different from each other and also different from each RB groups 402a-402n In multiple subcarriers.

As shown in figure 4, RB groups 402a-402n is in bandwidth F_WUpper and subcarrier group 406a-406m interweaves.In this example, ENB 104a replace each RB groups 240a-402n with each subcarrier group 406a-406m.For example, eNB 104a are in bandwidth F_W Lower end at reserve the first RB group 402a, then reserved first subcarrier group 406a, is followed by the 2nd RB group 402b, followed by Second subcarrier group 406a, etc., wherein residue RB groups 402c-402n replaces with residue subcarrier group 406a-406m.

As example and with reference to figure 1 and 4, eNB 104a can be by bandwidth F_BWIt is divided into L RB, each RB has quantity Or the subcarrier that size is X, it means that it is the subcarrier of XL that bandwidth FBW, which has sum,.Then from this L RB, eNB 104a can reserve the RB collection for including N number of RB groups 402a-402n, and it is F's that wherein each of RB groups 402a-402n, which has quantity, RB.ENB 104a can also be reserved from L RB include M sub- carrier wave sets subcarrier collection, wherein subcarrier group 406a- Each of 406m has GX subcarrier 408a-408g, wherein G >=1, and G is integer.As described above, RB groups 402a-402n Each of in bandwidth F_BWThe upper intertexture each of with subcarrier group 406a-406m replaces.The distribution is given, then L=FN+GM The RB of quantity is in bandwidth F_BWOn be reserved, wherein:1) when determining that it should use RB layer to map and (such as be distributed on the basis of RB Block-the IFDMA of RB) for its uplink data transmission when, the RB several again of FN can be assigned to one or more nothings Line communication unit or UE 108a-108e;And/or 2) when determine its should use subcarrier levels mapping (such as based on subcarrier distribute The IFDMA of subcarrier) for its uplink data transmission when, the subcarrier at this GMX times several intervals can be assigned to One or more wireless communication units or UE 108a-108e.

RB layers of mapping include the preset frequency bandwidth F of one or more RB_BWOn mapping or mapping model, this or more A RB is from the reserved RB collection for distributing to UE 108a.Subcarrier levels mapping includes the predetermined frequency of one or more subcarriers Rate bandwidth F_BWOn mapping or mapping model, the one or more subcarrier is from the reserved sub- load for distributing to UE 108a Wave collection.

ENB 104a can determine the UE 108a and 108c serviced by eNB 104a in the cell in the 114a of heart district domain, Thus in the RB Layer assignment communication resources so that RB layers of mapping (for example, block IFDMA based on RB distribution) are used, and according to RB layers of mapping, UE 108a and 108c are assigned the RB in RB collection 402a-402n.Each UE 108a, 108c can go request to use Multiple RB of uplink transmission thereon, this is based on, and in addition to this, is only used as example but is not limited to, each UE 108a, 108c Transmission buffer in data volume, the service type and/or hardware and transmittability of each UE 108a, 108c.Each UE 108a, 108c can ask the RB of different number to be transmitted for their uplink.

Assuming that in the presence of the N number of RB groups for being not yet assigned to any UE 108a-108b, and the first UE 108a have requested that The RB of a quantity less than or equal to N number of RB.In this case, eNB 104a can come to the first UE 108a distribution first Every group of a RB 404a from each RB groups 402a-404n containing N number of RB so that divided from every group of RB Dispensing UE 108a.Then eNB can store RB distribution and be labeled as the N number of RB of all that distribute to the first UE 108a.Then, eNB 104a can transmit the RB distribution of the instruction for the N number of RB for having distributed to the first UE 108a.Asked RB is small A different RB in come from N groups every group can be assigned in or equal to any other UE of RB of a quantity of N number of RB.

2nd UE 108c can ask the P RB more than N to be transmitted for uplink, in this case, eNB 104a can execute the period allocated of requested P RB.In the period 1, eNB 104a can determine z times it is several or every It is a set include N number of RB z RB collection (such as z=floor (P/N)), can adapt to requested P RB and residue or The P-zN RB (such as rem (P/N)) finally gathered.Then, eNB 104a can be in bandwidth F_BWThe upper period allocated for executing RB Or make multiple " distribution " by N number of RB groups, to distribute the z set and P-zN RB of residue that each set includes N number of RB Set.

Include the z set of N number of RB for each set, eNB can distribute the first set for including N number of RB, this first Each RB comes from different RB groups 402a-402n in set, also, if necessary, then repeats other one or more set N number of RB distribution, such as distribution includes the second set of N number of RB, and each RB is from different RB groups 402a- in the set 402n, and the first set of wherein RB is different from the second set of RB, and repetition includes the distribution of the set of N number of RB, until Z set including N number of RB.First set, second set and with including N number of RB z set other set in RB It is different.Although being not required, it should further be appreciated that each for N number of RB groups, first set, second set and RB in any other set is continuous.

For including the set of remaining P-zN RB, eNB can distribute P-zN RB group for coming from RB groups 402a-402n In every group of a RB.ENB 104a can select P-zN RB group based on the quantity of the idle RB in each RB groups, and select Select these P-zN RB group with ensure the idle RB in each group quantity or allocated RB quantity substantially with N number of RB Group is identical.First set, second set and with including N number of RB z set other set in each of RB and P- RB in zN RB is different.Then eNB 104a can transmit the instruction with P RB for distributing to the 2nd UE 108c RB is distributed.Any other UE of the RB of a quantity of the request more than N number of RB can be assigned in a similar way is different from N number of RB Every group of RB collection of group.Although being not required, it is more advantageous to, first set, second set, any other is gathered and remains The RB that complementary set is closed is continuous for every group in N number of RB groups as far as possible.If all RB collection for distributing to UE 108a exist It is continuous in every group in N number of RB groups or is continuous for every group in N number of RB groups, be then more favorable.

ENB 104a can determine some i.e. 108b in other one or more UE serviced by eNB 104a in cell In fringe region 110a, thus in the subcarrier levels distribution communication resource so that subcarrier levels mapping (for example, IFDMA) is used, And UE 108b are assigned the subcarrier in subcarrier collection 406a-406m.UE 108b may have requested that K RB (that is, KX son Carrier wave, it is assumed that each RB has X subcarrier) for uplink transmission thereon, this is based on, and in addition to this, is only used as example But be not limited to, the data volume in the transmission buffer of each UE 108b, service type, and/or the hardware of each UE 108b and Transmittability.Note that the subcarrier levels mapping of such as IFDMA has a characteristic:Distribute to each subcarrier of UE 108b at least The subcarrier of predetermined quantity by interval more than 1.That is, the son for executing such as each UE of IFDMA subcarrier levels mapping carries Wavelength-division is not with being continuous or the not no subcarrier of direct neighbor each other.

It is assumed that there are M sub- carrier wave set 406a-406m, wherein every subcarrier group has GX subcarrier, wherein G>=1 and G is integer, is also not allocated to any UE 108a-108c, and KX<=M.In this case, eNB 104a can be first Every group in the KX groups in M sub- carrier wave sets of a subcarrier 408a is first distributed into UE 108b.That is, M subcarrier Every group of the first subcarrier of group is assigned to UE 108b, until KX<=M subcarrier.Request is less than or equal to K RB's Any other UE of the RB of one quantity can also be assigned different from KX<Every group of subcarrier of=M sub- carrier wave sets.Equally, Preferably, the position of each subcarrier is identical in every group of M sub- carrier wave sets.For example, if the first of M sub- carrier wave sets Subcarrier at interior i-th of the position of group or frequency is assigned to UE 108b, then is preferably, in the remaining set of M sub- carrier wave sets The subcarrier at the i-th bit place of setting is also allocated to UE 108b, this ensures the papr (Peak of the transmission of UE 108b Average to Power Ratio, PAPR) it is reduced as much as possible.Then eNB 104a can transmit to have has distributed to UE The RB of the instruction of the KX subcarrier of 108b is distributed.Times of the request less equal than the subcarrier of a quantity of M subcarrier What his UE can be assigned in a similar way different from each discontinuous subcarrier from M block of sub-carriers Collection.

However, if there is KX>M sub- carrier wave sets, then eNB 104a can (such as KX be asked son in subcarrier levels Carrier wave) period allocated of requested K RB is executed, this will need two or more assignment periods.First, eNB 104a can To determine that z times of several or each set includes z set (such as z=floor (KX/M)) of M sub- carrier wave sets, can be adapted to Collect in requested P RB and residue or finally KX-zM sub- carrier wave sets (such as rem (KX/M)) being combined.Then, eNB 104a can be in bandwidth F_BWThe upper period allocated for executing subcarrier makes multiple " distribution " by M sub- carrier wave sets, with distribution Often set includes z set of M subcarrier and the set of remaining KX-zM subcarrier.

Include z set of M subcarrier for every set, in the first assignment period, eNB 104a can distribute packet The first set of M subcarrier is included, wherein each subcarrier comes from different sub-carrier group 406a-406m, then, if necessary Words repeat the distribution of M subcarrier of other one or more set, for example, distribution includes the second set of M subcarrier, Wherein each subcarrier comes from different sub-carrier group 406a-406m, and the first set of subcarrier is different from the second of subcarrier Set, and the first set of its sub-carriers and second set are discontinuous when being combined or there is no adjacent sub- loads Wave.In addition, optionally or in the conceived case, every group of phase of the subcarrier each gathered from M sub- carrier wave sets It is obtained at sub-carrier positions.That is, the son that each of each of the every group set in M sub- carrier wave sets is distributed carries The position of wave is identical.Can to include M subcarrier other set duplicate allocation processes, until being carried including m-th The z of wave gathers.First set, second set and other subcarriers gathered with the z set including M subcarrier are It is different and discontinuous.

For including the remainder set of KX-zM RB, eNB 104a, which can be distributed, comes from subcarrier group 406a-406n's Every group of subcarrier of KX-zM sub- carrier wave sets.It is discontinuous in the z set of M subcarrier of every set and KX-zM subcarrier In the case of, eNB 104a can select KX-ZM subcarrier based on the quantity of the idle sub-carrier in each subcarrier group Group.KX-zM sub- carrier wave sets can be selected, with ensure the idle sub-carrier in M sub- carrier wave sets quantity or every group in distribute Subcarrier quantity and M sub- carrier wave sets it is essentially identical.First set, second set and with including M block of sub-carriers Subcarrier in subcarrier and KX-zM block of sub-carriers in each of other set of z set is different, and not Continuously.In addition, in the conceived case, z set also uses to come from has phase in each of KX-zM sub- carrier wave sets With position or the subcarrier of index, this is favourable.Ask other UE of the distribution of subcarrier levels that can be based on M sub- carrier wave sets In remaining idle or unappropriated subcarrier and be assigned the discontinuous subcarrier of a set.Then eNB 104a can be transmitted The subcarrier of instruction with KX subcarrier for having distributed to UE 108b distributes.Request is more than a quantity of M subcarrier Any other UE of subcarrier can be assigned in a similar way different from discontinuous sub- load in each of M sub- carrier wave sets The set of wave.

Although subcarrier levels distribution be described as asking discrete subcarrier collection, to each UE can use it is discontinuous Subcarrier levels mapping, such as, but not limited to IFDMA, to access unlicensed wireless frequency spectrum, but those skilled in the art should manage Solution, the condition can relax so that UE can be assigned one or more continuous subcarriers in subcarrier levels.For example, right In KX>M, have been allocated for include M discontinuous subcarriers first set after, any other subcarrier of distribution can be with It is continuous with one or more of first set including M subcarrier subcarrier.Assuming that at least one in KX subcarrier A to be continuous, this may form mixing IFDMA/ block-IFDMA systems.If without other modes with respectively from Discontinuous subcarrier collection in M sub- carrier wave sets, then this method may be useful.

It in another example, can be by eNB 104a-104m with reference to figure 1- Fig. 4 above-mentioned communication RB distribution methods described It using, effectively to distribute RB collection and/or subcarrier collection so that UE 108a-108e will not be sent with excessive PAPR, And therefore making its linear transmission amplifier overload, especially UE 108a-108e are in its respective cell edge region 110a- When 110m.Communication resource distribution for each UE 108a-108b can be based on the above method in subcarrier levels distribution and RB layers points It is dynamically adjusted between matching, it is possible to distribute discontinuous RB and/or subcarrier, wherein PAPR is for each UE 108a- It is still acceptable for 108e.Multiple UE 108a-108c can use RB layer map, such as, but not limited to, block-IFDMA or IFDMA, to access the communication resource of preset frequency bandwidth.For example, UE 108a and 108c are located in the 114a of center of housing estate region, Wherein eNB 104a can determine that block-IFDMA can be used and with RB layers in preset frequency bandwidth F_BWUpper distribution communication money Source, and also determine UE 108b be in cell edge region 110a, and determine the UE 108b should be in F_BWIt is upper to be carried using son Wave layer maps, such as, but not limited to IFDMA, and the communication resource is distributed in subcarrier levels.

In addition, if subcarrier collection size or number of subcarriers in each subcarrier group 406a-406m are equal in RB Number of subcarriers N, i.e. M=N can then be distributed to when being mapped using the discontinuous subcarrier levels for being such as, but not limited to IFDMA every The maximum quantity of the RB of a UE 108a-108e can be the N number of of subframe saltus step (hopping) in no frame, or have frame 2N of interior subframe saltus step.

For the above method, device and/or UE make further modification.For example, when eNB 104a determine UE 104b or Wireless communication unit be located at the cell edge for the cell that (or will be located at) eNB 104a are serviced region or nearby within when, ENB 104a can determine that UE 104b or wireless communication unit will be mapped using subcarrier levels.Otherwise, eNB 104a can determine UE 104a or wireless communication unit will use RB layers of mapping.It needs to include that quantity is less equal than when UE 108a wireless communication units Subcarrier group quantity, or when multiple RB of predetermined minimum number threshold value (such as 1 or 2 RB) less than RB, eNB 104a are also It can determine whether UE 108a or wireless communication unit are mapped using subcarrier levels.Although providing 1 or 2 RB as exemplary The minimum number threshold value of RB, it will be appreciated by those skilled in the art that the minimum number threshold value of RB can change or be more than 2, or can be value n, wherein n is to depend on load, the quantity of UE, the UE 108b of cell edge and the UE of center of housing estate Any integer of load distribution and other factors between 108a or 108c.This also increases eNB 104a by UE 108a's Transmitting extended is to preset frequency bandwidth F_BW80% or more probability.Otherwise, eNB 104a can determine that wireless communication unit is wanted It is mapped using RB layers.

When the estimation transmission power of the required wireless communication unit of uplink transmission is higher than predetermined transmission power threshold value, ENB104a can determine that UE 108b or wireless communication unit will be mapped using subcarrier levels.This is in order to avoid unexpectedly exceeding PAPR the UE 108b of the transmitter of UE 108b or 108a are located at cell edge and RB layers of mapping are needed possibly can not to fit The higher transmission power answered.Alternatively, or in addition, when UE 108b or wireless communication unit are determined positioned at the edge of cell Nearby and need more than subcarrier group quantity subcarrier quantity RB when, eNB 104a can determine UE 108b or Wireless communication unit should use RB layers of mapping in subcarrier levels.

Another modification or example are located at preset frequency band when distributing wireless communication resources to each wireless communication unit One or more of region near wide top and bottom RB groups or one or more subcarrier groups are used first.This has Help ensure to meet above-mentioned first item prescribed requirement.Specifically, to the logical of each UE 108a-108e or wireless communication unit Letter resource allocation is at least extended to the 80% of preset frequency bandwidth.

In addition, the RB collection can be stored in memory or other computer-readable mediums by eNB 104a.For eNB The RB collection of the UE 108a-108c in cell 106a is distributed in 104a tracking, which such as, but not limited to can be with expression RB The bitmap of the RB distribution of mapping layer or the RB look-up tables of mapping indexed are associated.The RB that RB is concentrated can be by RB look-up tables One or more indexes indicate.These indexes or index value can be used for indicating their communication money to UE 108a-108c Source is distributed.ENB 104a can send to each UE 108a-108c or wireless communication unit and indicate to be already allocated to for coming from The RB of UE concentrates the data of one or more of the RB look-up tables of one or more RB index or index value, as uplink The instruction of respective communication resource allocation at the RB mapping layers of link transmission.

RB look-up tables may include, only be such as, but not limited to, and indicate that the data of index value list, each index value correspond to pre- Determine bandwidth specific RB mapping, wherein each index value can indicate in preset frequency bandwidth or system bandwidth reserve The different RB of one or more positions RB map.Each index value in RB look-up tables can indicate each RB that reserved RB is concentrated Mapping, the mapping from one or more of reserved RB collection RB, and/or each RB that comes from concentrates one or more RB groups One or more RB mapping, and/or be reserved for RB layers mapping it other deformation and/or combination.For example, The reserved RB collection mapped for RB layers may include the multiple RB groups being spaced in preset frequency bandwidth, wherein each RB groups are with more A continuous RB.Index value can indicate that RB maps, and can indicate the position of RB, the position of one or more RB from RB groups It sets, the position of one or more RB from one or more RB groups, the position of two or more RB each from different RB groups Set, or one or more RB any other combination or preset frequency bandwidth upper span one or more RB groups it is multiple The position of RB.

In addition, eNB 104a can also track the subcarrier collection for distributing to the 108a-108c of the UE in cell 106a.The son Carrier set such as, but not limited to can be with the bitmap of subcarrier distribution or having indexed for mapping that indicate subcarrier maps layers Subcarrier look-up table is associated.The subcarrier collection is carried with the son of the bitmap subcarrier distribution of subcarrier maps layer indexed is indicated Wave look-up table is associated.The subcarrier that subcarrier is concentrated can be by one or more of subcarrier look-up table index value come table Show.ENB 104a can be sent to each UE 108a-108c or wireless communication unit to be indicated for from being already allocated to UE's Subcarrier concentrates the data of one or more indexes or index in the subcarrier look-up tables of one or more subcarriers, as The instruction of respective communication resource allocation at the subcarrier maps layer of uplink transmission.

Subcarrier look-up table may include, such as, but not limited to, indicate that the data of index value list, each index value correspond to The specific subcarrier of bandwidth maps, wherein each index value can indicate in preset frequency bandwidth or system bandwidth The different sub-carrier of reserved one or more sub-carrier positions maps.Each index value in subcarrier look-up table can indicate The mapping for each subcarrier that preserved sub-carrier is concentrated, the mapping from one or more of preserved sub-carrier collection subcarrier, And/or each come from the mapping that subcarrier concentrates one or more subcarriers of one or more subcarrier groups, and/or It is reserved for other deformations and/or a combination thereof of subcarrier levels mapping.For example, the preserved sub-carrier for subcarrier levels mapping Collection may include the multiple subcarrier groups being spaced in preset frequency bandwidth, wherein each subcarrier group has multiple continuous sub- loads Wave.Index value can indicate subcarrier maps, can indicate the position of subcarrier, one or more from subcarrier group The position of carrier wave, the position of one or more subcarriers from one or more subcarrier groups each come from different sub-carrier The position of two or more subcarriers of group, or one or more subcarrier any other combination or preset frequency bandwidth The position of multiple subcarriers of one or more subcarrier groups of upper span.

Once eNB 104a have reserved RB collection in bandwidth or system bandwidth, and have generated RB layers of mapping With corresponding RB look-up tables and with the associated index of one or more RB mappings that is mapped for RB layers, eNB 104a can To notify RB layers of mapping to UE 108a-108c.ENB 104a can be sent to UE 108a-108c and/or broadcast indicates that RB is looked into Look for the data of table and the definition with the index of one or more RB mapping associations.This can enable eNB 104a to be wanted in UE It is based only upon index associated with RB look-up tables when being mapped using RB layers, communication money is efficiently sent to each UE 108a-108c Source is distributed.

Similarly, once eNB 104a have reserved subcarrier collection in bandwidth or system bandwidth, and Generate subcarrier levels mapping and corresponding subcarrier look-up table and with one or more subcarriers for being mapped for subcarrier levels Associated index is mapped, eNB 104a can be to UE 108a-108c notice subcarrier levels mappings.ENB104a can be to UE 108a-108c is sent and/or broadcast indicates the data of subcarrier look-up table and associated with one or more subcarrier maps The definition of index.This can enable eNB 104a be based only upon and subcarrier look-up table phase when UE will use subcarrier levels to map Associated index efficiently sends communication resource distribution to each UE 108a-108c.

Although it have been described that the mapping of the subcarrier levels of preserved sub-carrier collection and reserved RB collection and RB layers of mapping, are only used as and show Example, but be not limited to, it is stored in the subcarrier look-up table and RB look-up tables of associated index or index value, and wherein every A index indicates, is only used as example but is not limited to, and subcarrier concentrates one or more subcarriers or RB to concentrate one or more RB Subcarrier maps, it will be appreciated by those skilled in the art that RB layers mapping and/or subcarrier levels mapping can be in eNB It is described or indicates in such a way that any other is suitable and/or efficient at 104a and/or UE 108a-108c, to allow eNB 104a sends communication resource distribution to UE 108a-108c so that UE 108a-108c can distribute to it by eNB 104a The communication resource on suitably transmit its uplink data.

Although subcarrier levels map or RB layers of mapping are respectively used to the general mapping (generic in subcarrier levels and RB layers Mapping), but subcarrier levels mapping can be based on IFDMA and map, LFDMA maps or block-IFDMA maps or combinations thereof Mixed-use developments, as subcarrier levels;And RB layers of mapping can be mapped based on block layer IFDMA or LFDMA maps or combinations thereof Mixed-use developments, as RB layers.

In addition, eNB 104a can execute one of the following or multiple:When each wireless communication unit will be in RB When layer uses block-IFDMA, the RB come from each RB groups of RB collection is distributed into each wireless communication unit;Work as institute Each wireless communication unit is stated to carry the every height for coming from the subcarrier collection when subcarrier maps layer uses IFDMA Subcarrier in wave group distributes to each wireless communication unit, wherein allocated subcarrier is discrete;Or work as Each wireless communication unit will will come from each of described subcarrier collection when subcarrier maps layer uses block-IFDMA Subcarrier in subcarrier group distributes to each wireless communication unit, wherein two or more subcarriers distributed are Continuously.

According to the capacity of bandwidth, the quantity of the UE in cell, the quantity of UE in cell edge region 110a, in cell The quantity of UE in the 114a of heart district domain, the load distribution of entire cell, the bandwidth request etc. of UE 108a-108c, eNB 104a can be with The reserved of the subcarrier of reserved and subcarrier concentration of the RB of RB concentrations is dynamically changed via various methods.

For example, eNB 104a can determine UE in the cell edge region 110a of eNB 104a institute serving cell 106a The quantity of UE 108a, 108c in the quantity and center of housing estate region 114a of 108b.Therefore, when in cell edge region 110a UE 108b quantity be more than center of housing estate region 114a in UE 108a, when the quantity of 108c reaches the first predetermined threshold, ENB 104a can reduce the RB collection by reserving one or more RB from one or more RB groups, be included in this to be formed Other multiple subcarriers that subcarrier is concentrated.This is because there may be load increase or highers in cell edge region 110a Risk, or there are a kind of expection, i.e., more UE 108e are about to or will enter cell edge region 110a so that sub There is no enough subcarriers in carrier set, for mapping punishment sub-carriers in subcarrier levels.However, working as cell edge region The quantity of UE 108b is less than UE108a in the 114a of center of housing estate region in 110a, when the quantity of 108c reaches the second predetermined threshold, ENB 104a can come from the one of one or more subcarrier groups by reserving to be equivalent to from one or more subcarrier groups One or more continuous subcarriers of a or multiple RB increase the RB collection, with formed be included in RB concentrations other are multiple RB.This avoids center of housing estate region 114a overloads, and eNB 104a have at RB layers of mapping enough communication resources with For distributing to UE 108a, 108c in the 114a of center of housing estate region.

Similarly, additionally or alternatively, eNB 104a can determine the cell side of eNB 104a institute serving cell 106a The requested band of UE 108a, 108c in the requested bandwidth of UE 108b and center of housing estate region 114a in edge region It is wide.Therefore, when the requested bands of UE 108b in cell edge region 110a are wider than the UE in the 114a of center of housing estate region When the requested bandwidth of 108a, 108c reaches the first bandwidth threshold value, eNB 104a can be by from one or more RB groups In reserve one or more RB and reduce the RB collection, to form other the multiple subcarriers for being included in the subcarrier and concentrating.This When avoiding subcarrier collection and exhausting subcarrier when subcarrier levels map to distribute to UE 108b.As cell edge region 110a The interior requested bandwidth of UE 108b is less than the requested bandwidth of UE 108a, 108c in the 114a of center of housing estate region and reaches the When two bandwidth threshold values, eNB 104a can by from one or more subcarrier groups reserve be equivalent to come from one or One or more continuous subcarriers of one or more RB of multiple subcarrier groups increase the RB collection, are included in the RB to be formed Other the multiple RB concentrated.Therefore, this prevent in these UE 108a, higher bandwidth is used in 108c or request is a large amount of When RB, which exhausts RB to distribute to the UE 108a, 108c of center of housing estate region 114a.In addition, the UE based on center of housing estate Estimation load of the estimation load of 108a, 108c less than the UE 108b of cell edge, reducing RB collection can be accidental or be touched Hair.In addition, the estimation load of the UE 108b based on cell edge is negative less than the estimation of the UE 108a, 108c of center of housing estate It carries, it can be accidental or triggering to increase the RB collection.

ENB 104a can assess associated with the UE 104a-104c in the cell 106a serviced by eNB 104a negative Carry distribution.Then, in current reservations RB collection and load distribution imbalance, eNB 108a can update current reservations RB collection, and And notify newer reserved RB collection to each of UE 104a-104c.Similarly, eNB 104a can be assessed and by eNB The associated load distributions of UE 104a-104c in the cell 106a of 104a services.Then, current reservations subcarrier collection with When load distribution imbalance, eNB 108a can update current reservations subcarrier collection, and logical to each of UE104a-104c Know newer preserved sub-carrier collection.

It should be appreciated by those skilled in the art that keep for subcarrier levels map RB or subcarrier quantity be it is flexible, And eNB 104a can be the suitable percentage of subcarrier levels mapping selection total resources according to the load distribution in its cell 104a Than.For example, when in the cell edge region for the 114a of center of housing estate region or field 110a there are when more UE, then It can be that the subcarrier group reserves more RB and/or subcarrier, be mapped to enable subcarrier levels.But it if is in without UE In cell edge region or field 110a, then eNB 104a can remove the subcarrier group so that there is no reflected for subcarrier levels Penetrate reserved RB or subcarrier.However, when needing to occur, eNB104a can dynamically change the reserved of RB and subcarrier, That is, when UE 108b can enter or be detected as that cell edge region 110a will be entered, eNB 104a are that the subcarrier collection is pre- Subcarrier or RB are stayed, so that subcarrier levels mapping can be used.

In addition, changing compared to than UE communication session, the load distribution in cell 106a may change to less frequency, example Such as, communication session length may be, such as, but not limited to, several seconds or so, and reservation schemes (i.e. the RB collection of particular reserved and Subcarrier collection) a few minutes may be continued.When current RB is reserved with load distribution imbalance, eNB 104a can continue to keep commenting Estimate the load distribution in its cell 106a, then eNB 104a can update that RB is reserved (such as to determine that reserved RB collection and son carry Another variation of wave collection), and by, for example, but be not limited to, in system information, UL scheduling messages or in point-to-point message The middle one or more UE 108a-108c be broadcast to all UE 108a-108c or carrying out communication session, with logical Know the UE 108a-108c in cell 106a.UE 108a-108c are configured as understanding system information, UL scheduling messages or Notice, and record or store new RB and reserve (for example, new RB collection and/or subcarrier collection).

For example, at a time, eNB 104a are that cell edge UE 108b reserve 30%RB for such as IFDMA's Subcarrier levels map so that the UE 108b in cell edge region 110a can read and understand the scheduling message in 30%RB Part, can be read without the UE in cell edge region 110a and understand the scheduling message after its censoring 30%RB.One After the section time, the load in cell 106a may change, and eNB 104a can reserve the RB of RB collection and subcarrier collection From 30% update to 40%, and this new reserved needs is transmitted by broadcast message and/or specific messages to all UE 108a-108c.In the message, reserved RB and time started may include how.UE 108a-108c know from message, The quantity M of reserved subcarrier group will differ from the quantity at instruction moment.

Fig. 5 shows the various assemblies of illustrative computing device 500, can be implemented to include scheduling and by uplink Link communication resource distributes to the work(of the wireless communication unit using unlicensed wireless frequency spectrum in cell in wireless communication system Can, it is only used as example but is not limited to, in conjunction with as described in the eNB 104a in the telecommunication network 100 with reference to described in figure 1-4.

Computing device 500 includes one or more processors 502, can be microprocessor, controller or any other The processor of suitable type, for processing computer executable instructions with the operation of control device, so as to as described herein Measurement is executed described in process and method, receives measurement report, scheduling and/or the distribution communication resource.

In some instances, such as using chip system architecture, processor 502 may include one Or multiple fixed-function blocks (also referred to as accelerator), side as described herein is realized in hardware (rather than software or firmware) Method and/or process.

Platform software and/or computer executable instructions including operating system 504a can be provided on the computing device, Or any other suitable platform software, so that application software can execute in equipment.According to the function of computing device 500 and The application of ability and computing device, software and/or computer executable instructions may include executing measurement, receive and measure report Accuse, the function of scheduling and/or the distribution communication resource, and/or base station according to the present invention or eNB with reference to described in figure 1-4 work( Energy.

For example, computing device 500 can be used to implement base station 104a or eNB 104a, and may include software and/or Computer executable instructions, software and/or computer executable instructions may include executing measurement, receive measurement report, scheduling And/or the function of the distribution communication resource, and/or base station according to the present invention or eNB with reference to described in figure 1-4 function.

Can using the addressable any computer-readable medium of computing device 500 come software and/or computer are provided can It executes instruction.Computer-readable medium may include, such as computer storage media, such as memory 504 and communication media.Meter Calculation machine storage medium, Jie for the volatile and non-volatile realized in such as memory 504, including any method or technique Matter, removable and immovable medium, for the storage of information, such as computer-readable instruction, data structure, program mould Block or other data.

Computer storage media can include but is not limited to RAM, ROM, EPROM, EEPROM, flash memory or other memory skills Art, CD-ROM, digital versatile disc (DVD) or other optical memories, cassette tape, tape, disk storage equipment or other magnetic Property storage device, or can be used for storing any other non-transmission medium of the information accessed for computing device.On the contrary, communication media It can embody computer-readable instruction, data structure, other data in program module or modulated data signal, such as carrier wave, Or other transmission mechanisms.As herein defined, computer storage media does not include communication media.Although computer storage media (memory 504) is illustrated in computing device 500, it should be appreciated that, storage can be distributed or positioned at long-range and pass through It is accessed by network or other communication links (such as using communication interface 506).

Computing device 500 it is also possible that optionally or if desired, include i/o controller 510, the input/defeated Go out controller 510 to be configured as to show that information is output to the display equipment 512 that can be separated or integrate with computing device 500, Display information can provide graphic user interface.I/o controller 510 be additionally configured to receive and process from such as with The input of one or more equipment of family input equipment 514 (such as mouse or keyboard).User input can be used to set up Scheduling is either the first kind and/or for distributing the communication resource or which communication resource being arranged for measurement report Two types etc..In one embodiment, if it is touch-sensitive display device, show that equipment 512 is also used as user's input Equipment 514.I/o controller 510 can also output data to the equipment other than showing equipment, for example, passing through Communication interface 506, the other equipment of any other communication interface or locally-attached printing device/computing device etc..

Fig. 6 shows the various assemblies of illustrative computing device 600, can be implemented to include and receive the logical of distribution Believe resource and the function using the communication resource, only as an example, but be not limited to, such as combine electric with reference to described in figure 1-4 Described in UE 104a or the UE 104b of communication network 100.

Computing device 600 includes one or more processors 602, can be microprocessor, controller or any other The processor of suitable type, for handling computer executable instructions with the operation of control device, so as to mistake as described herein Measurement is executed described in journey and method, receives measurement report, scheduling and/or the distribution communication resource.In some instances, such as Using chip system architecture in the case of, processor 602 may include one or more fixed-function blocks (also referred to as plus Fast device), method and/or process as described herein are realized in hardware (rather than software or firmware).

It can on the computing device provide including operating system 604a platform softwares and/or computer executable instructions, or Any other suitable platform software, so that application software can execute in equipment.According to the function and energy of computing device 600 The application of power and computing device, software and/or computer executable instructions may include executing measurement, receive measurement report, The function of scheduling and/or the distribution communication resource, and/or base station according to the present invention or eNB with reference to described in figure 1-4 function. For example, computing device 600 can be used to implement UE 108a or 108b, and may include software and/or the executable finger of computer It enables, software and/or computer executable instructions may include executing measurement, receive measurement report, scheduling and/or distribution communication money The function in source, and/or UE according to the present invention with reference to described in figure 1-4 function.

Can using the addressable any computer-readable medium of computing device 600 come software and/or computer are provided can It executes instruction.Computer-readable medium may include such as computer storage media, such as memory 604 and communication media.Meter Calculation machine storage medium, Jie for the volatile and non-volatile realized in such as memory 504, including any method or technique Matter, removable and immovable medium, for the storage of information, such as computer-readable instruction, data structure, program mould Block or other data.

Computer storage media can include but is not limited to RAM, ROM, EPROM, EEPROM, flash memory or other memory skills Art, CD-ROM, digital versatile disc (DVD) or other optical memories, cassette tape, tape, disk storage equipment or other magnetic Property storage device or any other non-transmission medium that can be used for storing the information accessed for computing device.On the contrary, communication media It can embody computer-readable instruction, data structure, other data in program module or modulated data signal, such as carrier wave, Or other transmission mechanisms.As herein defined, computer storage media does not include communication media.Although computer storage media (memory 604) is illustrated in computing device 600, it should be appreciated that, storage can be distributed or positioned at long-range and pass through It is accessed by network or other communication links (such as using communication interface 606).Computing device 600 it is also possible that optionally or If desired, including i/o controller 610, which is configured as to show that information is output to It can be separated with computing device 600 or integrated display equipment 612, display information can provide graphic user interface.Input/defeated Go out controller 610 to be additionally configured to receive and process one from such as user input equipment 614 (such as mouse or keyboard) Or the input of multiple equipment.User input can be used to set up scheduling, for measurement report or for distributing communication Resource, or for be arranged which communication resource be the first kind and/or Second Type etc..In one embodiment, if its For touch-sensitive display device, display equipment 612 is also used as user input equipment 614.I/o controller 610 can be with Output data to the equipment other than showing equipment, for example, by communication interface 606, any other communication interface its His equipment or locally-attached printing device/computing device etc..

Herein, term " computer program product ", " computer-readable medium " etc. can be generally used for referring to tangible Jie Matter, such as memory, storage device or storage unit.The computer-readable medium of these and other forms can store one or Multiple instruction by the processor including computer system to be used, so that processor executes specified operation.These instructions, commonly referred to as For " computer program code " (it can be grouped in the form of computer program or other groupings), make when executed Computing system is able to carry out the function of the embodiment of the present invention.It is noted that this code can be directly so that processor execution refers to It operates calmly, be compiled as doing so, and/or with other software, hardware and/or firmware components (for example, for executing standard feature Library) combination to do so.In the embodiment using software to realize element, software can be stored in computer-readable Jie In matter, also, for example it is loaded into computing system using removable Storage driver.In by computer system When managing device execution, control module (in this example, being software instruction or executable computer program code) is so that processor is held Capable function as of the invention described herein.In addition, present inventive concept can be applied to for executing in communication network element Any circuit of signal processing function.It is further contemplated that for example, semiconductor maker can use in the design of autonomous device The design of the present invention, such as digital signal processor (digital signal processor, DSP) or application-specific integrated circuit The microcontroller of (application-specific integrated circuit, ASIC) and/or any other subsystem member Part.

It should be understood that benefit described above and advantage can be related to one embodiment or can be related to several embodiments. Embodiment is not limited to solve the problems, such as any or all of illustrated these, or has with any or all of illustrated These of beneficial effect and advantage.

One or more can be referred to any reference of "one" for several times.Ci Chushiyong 'Including 'Mean include The method and step or element identified, but these steps and element do not include exclusive list, and a method and apparatus can With including additional step and element.The step of method described herein, can execute in any suitable order, or suitable It is performed simultaneously in the case of.Above-mentioned any exemplary various aspects can with any other exemplary aspect of the description into Row combination is to form further example, without losing desired effect.

It is understood that the foregoing description of preferred embodiment is only presented in an illustrative manner, those skilled in the art Various modifications can be made.Although with certain specifics, or with one or more single embodiments, it has been described that various realities Example is applied, but those skilled in the art, which can carry out the disclosed embodiments many change, to be made without departing from the scope of the present invention.

Claims

1. a kind of method of distribution uplink communications resources, which is characterized in that the use in the cell of wireless communication system Multiple wireless communication units of unlicensed wireless frequency spectrum, the method includes:

In servicing the base station of the cell of the wireless communication system, uplink communication is reserved in preset frequency bandwidth Resource;Wherein, the uplink communications resources include resource block collection and subcarrier collection;The resource block collection is including two or more The resource block group at multiple intervals, each resource block includes multiple subcarriers in the resource block group;The subcarrier collection includes two The subcarrier group at a or more interval;Multiple resource block groups and multiple subcarrier groups interweave in the preset frequency bandwidth;

The communication resource is distributed to each wireless communication unit that the base station is serviced, including:

When each wireless communication unit will use resource block layer to map, distribution comes from each money of the resource block collection One or more of source block group resource block gives each wireless communication unit;

When each wireless communication unit will use subcarrier levels to map, distribution comes from every height of the subcarrier collection One or more of carrier wave set subcarrier gives each wireless communication unit;And

The instruction for the respective communication resource allocation transmitted for uplink is sent to each wireless communication unit.

2. the method as described in claim 1, which is characterized in that

The resource block layer maps:Mapping comes from one or more resource blocks of reserved resource block collection, for dividing Dispensing wireless communication unit;

The subcarrier levels map:Mapping comes from one or more subcarriers of reserved subcarrier collection, for dividing Dispensing wireless communication unit.

3. method as claimed in claim 1 or 2, which is characterized in that there are N number of resource block group, distribution comes from each resource The step of resource block of block group, further comprises:

Distribution comes from a resource block in every group of N number of resource block group, and uplink transmission is used for wirelessly to reach The resource block of quantification needed for communication unit, wherein when the quantification of resource block is more than N, then distribution comes from institute State another resource block in every group of N number of resource block group of the resource block of the volume residual needed for wireless communication unit;And

Period duplicate allocation comes from N number of resource block group of any volume residual of the resource block needed for the wireless communication unit Every group in other resource blocks.

4. method as claimed in claim 3, which is characterized in that first resource block, the second money in every group of N number of resource block group Source block and any other resource block are continuous.

5. method as described in claim 3 or 4, which is characterized in that all resource blocks in every group of N number of resource block group are to connect Continuous.

6. method as claimed in claim 1 or 2, which is characterized in that there are M sub- carrier wave sets, when each wireless communication Unit will be mapped using subcarrier levels, and the quantity of required subcarrier be less than or equal to M when, distribution come from each subcarrier The step of subcarrier in group, further comprises:

Distribution comes from the subcarrier in every group of M sub- carrier wave sets, with reach transmitted for uplink it is required amount of Resource block.

7. method as claimed in claim 6, which is characterized in that position of each subcarrier in every group of M sub- carrier wave sets It is identical.

8. the method as described in any one of claim 1-7, which is characterized in that there are M sub- carrier wave sets, when the channel radio Letter unit will be mapped using subcarrier levels, and the quantity of required subcarrier be more than M when, distribution come from each subcarrier group Subcarrier the step of further comprise:

For two or more assignment periods:

In the first assignment period, distribution comes from a subcarrier in every group of M sub- carrier wave sets;

In the second assignment period, distribution comes from another subcarrier in every group of M sub- carrier wave sets, to reach the nothing The subcarrier of volume residual needed for line communication unit;And

Period duplicate allocation comes from M sub- carrier wave sets of the subcarrier of any volume residual needed for the wireless communication unit Every group in other subcarriers;

Wherein, the subcarrier in every group from M sub- carrier wave sets, any another subcarrier and any other subcarrier are continuous 's.

9. method as claimed in claim 8, which is characterized in that for each assignment period, each subcarrier of distribution is at M Position in every group of subcarrier group is identical.

10. the method as described in any one of claim 6-9, which is characterized in that the requirement of subcarrier is each resource The integral multiple of block sub-carriers quantity.

11. method as described in any one of the preceding claims, which is characterized in that further comprise:

When wireless communication unit is determined being located near cell edge, determine that the wireless communication unit will use subcarrier levels Mapping;Otherwise determine that the wireless communication unit will be mapped using resource block layer.

12. method as described in any one of the preceding claims, which is characterized in that further comprise:

When the wireless communication unit needs the resource block of a quantity, determine that the wireless communication unit will use subcarrier levels Mapping, the resource block of the quantity include multiple subcarriers less than subcarrier group quantity or predetermined least resource block threshold value;Otherwise, Determine that the wireless communication unit will be mapped using resource block layer.

13. method as described in any one of the preceding claims, which is characterized in that further comprise:

When the estimation transmission power of the required wireless communication unit of uplink transmission is higher than predetermined transmission power threshold value, determine The wireless communication unit will be mapped using subcarrier levels.

14. method as described in any one of the preceding claims, which is characterized in that further comprise:

When wireless communication unit is determined near cell edge and needs the resource block of a quantity, the channel radio is determined Letter unit should be mapped in subcarrier levels using resource block layer, and the resource block of the quantity includes more more than subcarrier group quantity A subcarrier.

15. method as described in any one of the preceding claims, which is characterized in that lead to when for the distribution of each wireless communication unit When believing resource, it is located at one or more of preset frequency bandwidth top and bottom near zone resource block group or one or more Subcarrier group is first used.

16. method as described in any one of the preceding claims, which is characterized in that provided for the communication of each wireless communication unit The distribution in source occupies at least the 80% of preset frequency bandwidth.

17. method as described in any one of the preceding claims, which is characterized in that the resource block of the resource block collection and index Look-up table is associated, and the resource block look-up table of index indicates that the bitmap resource block in resource block mapping layer distributes, wherein each right Multiple resource blocks of the distribution for coming from resource block collection for the wireless communication unit answered are by one or more of resource block look-up table What a index indicated;

The method further includes:

It is sent, is further comprised to each wireless communication unit:

The data for sending the one or more indexes for indicating resource block look-up table are located at resource as what is transmitted for uplink The instruction of respective communication resource allocation at block mapping layer.

18. method as described in any one of the preceding claims, which is characterized in that the subcarrier of the subcarrier collection and index Look-up table is associated, and the subcarrier look-up table of the index indicates that the bitmap subcarrier in subcarrier maps layer distributes, wherein each Multiple subcarriers of the distribution for coming from subcarrier collection of corresponding wireless communication unit be by one of subcarrier look-up table or What multiple indexes indicated;

The method further includes:

It is sent, is further comprised to each wireless communication unit:

It sends and indicates that the data of one or more indexes of subcarrier look-up table are sent, be located at as what is transmitted for uplink The instruction of respective communication resource allocation at subcarrier maps layer.

19. method as described in any one of the preceding claims, which is characterized in that further comprise:

The request of the resource block for the quantification transmitted for uplink is received from each wireless communication unit.

20. method as described in any one of the preceding claims, which is characterized in that the subcarrier levels mapping is to be based on IFDMA maps, and resource block layer mapping is mapped based on block-IFDMA,

The method further includes:

When each wireless communication unit will use block-IFDMA when the resource block layer maps, resource block will be come from Resource block in each resource block group of collection distributes to each wireless communication unit;

When each wireless communication unit will use IFDMA at the subcarrier maps layer, the sub- load will be come from Subcarrier in each subcarrier group of wave collection distributes to each wireless communication unit, wherein the multiple subcarriers distributed are It is discrete;Or

When each wireless communication unit will use block-IFDMA at subcarrier maps layer, the subcarrier collection will be come from Each subcarrier group in subcarrier distribute to each wireless communication unit, wherein the two or more subcarriers distributed It is continuous.

21. method as described in any one of the preceding claims, which is characterized in that further comprise:

In the quantity and center of housing estate region for determining the user equipment in the cell edge region of base station institute serving cell The quantity of user equipment, wherein:

When the quantity that the quantity of the user equipment in cell edge region is more than the user equipment in center of housing estate region reaches the When one predetermined threshold, the resource block collection is reduced by reserving one or more resource block from one or more resource block groups, To form other the multiple subcarriers for being included in subcarrier concentration;

When the quantity that the quantity of user equipment in cell edge region is less than user equipment in center of housing estate region reaches second in advance When determining threshold value, the one or more continuous of one or more resource blocks is equivalent to by being reserved from one or more subcarrier groups Subcarrier increases the resource block collection, to form other the multiple resource blocks for being included in resource block concentration.

22. method as described in any one of the preceding claims, which is characterized in that further comprise:

Determine the requested bandwidth of user equipment and center of housing estate area intra domain user in cell edge region that base station is serviced The requested bandwidth of equipment, wherein

When to be wider than user equipment in center of housing estate region requested for the requested band of user equipment in cell edge region When bandwidth reaches the first bandwidth threshold value, subtracted by reserving one or more resource block from one or more resource block groups Few resource block collection, to form other the multiple subcarriers for being included in subcarrier concentration;

When the requested bandwidth of user equipment is less than the requested band of user equipment in center of housing estate region in cell edge region It is wide up to the second bandwidth threshold value when, by from one or more subcarrier groups reserve be equivalent to one or more resource blocks One or more continuous subcarriers increase the resource block collection, to form other multiple moneys for being included in resource block concentration Source block.

23. the method as described in claim 21 or 22, which is characterized in that

The estimation load that resource block collection is reduced depending on Cell Center User equipment is negative less than the estimation of Cell Edge User equipment It carries;And

The estimation load for increasing resource block collection depending on Cell Edge User equipment is negative less than the estimation of Cell Center User equipment It carries.

24. the method as described in any one of claim 21-23, which is characterized in that further comprise:

Assessment load distribution associated with multiple user equipmenies in the cell that base station is serviced;

When reserved current resource block collection is with load distribution imbalance, current reservations resource block collection is updated;And

Updated reserved resource block collection is notified to each user equipment.

25. a kind of device, which is characterized in that the equipment includes processor, storage unit and communication interface;The processor list Member, storage unit, communication interface are configured as the method described in any one of perform claim requirement 1-24.

26. a kind of telecommunication network, which is characterized in that the telecommunication network includes multiple user equipmenies and multiple base stations, Mei Geji It stands including device as claimed in claim 25, one or more of the multiple user equipment is served in each base station.

27. a kind of non-transitory computer-readable medium, which is characterized in that multiple computer-readable instructions are stored with, by processor It executes to realize the method described in any one of claim 1-24.