WO2011129660A2 - 무선 접속 시스템에서 고정 자원 할당 방법 및 장치 - Google Patents
무선 접속 시스템에서 고정 자원 할당 방법 및 장치 Download PDFInfo
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- WO2011129660A2 WO2011129660A2 PCT/KR2011/002721 KR2011002721W WO2011129660A2 WO 2011129660 A2 WO2011129660 A2 WO 2011129660A2 KR 2011002721 W KR2011002721 W KR 2011002721W WO 2011129660 A2 WO2011129660 A2 WO 2011129660A2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- TECHNICAL FIELD This specification relates to a wireless access system, and more particularly, to a method and apparatus for statically allocating resources.
- FIG. 1 shows an example of a frame structure.
- a superframe includes a superframe header (SFH) and four frames (frames, F0, F1, F2, and F3).
- Each frame in the superframe may have the same length.
- the size of each superframe is 20ms and the size of each frame is illustrated as 5ms, but is not limited thereto.
- the length of the superframe, the number of frames included in the superframe, the number of subframes included in the frame, and the like may be variously changed.
- the number of subframes included in the frame may be variously changed according to the channel bandwidth and the length of the cyclic prefix (CP).
- CP cyclic prefix
- One frame includes a plurality of subframes (subframe, SF0, SF1, SF2, SF3, SF4, SF5, SF6, SF7). Each subframe may be used for uplink or downlink transmission.
- One subframe includes a plurality of orthogonal frequency division multiplexing (OFDM) symbols or an orthogonal frequency division multiple access (OFDMA) in a time domain, and includes a plurality of subcarriers in the frequency domain. do.
- OFDM orthogonal frequency division multiplexing
- OFDMA orthogonal frequency division multiple access
- the OFDM symbol is used to represent one symbol period, and may be called another name such as an OFDMA symbol or an SC-FDMA symbol according to a multiple access scheme.
- the subframe may be composed of 5, 6, 7 or 9 OFDMA symbols, but this is only an example and the number of OFDMA symbols included in the subframe is not limited.
- the number of OFDMA symbols included in the subframe may be variously changed according to the channel bandwidth and the length of the CP.
- a type of a subframe may be defined according to the number of OFDMA symbols included in the subframe.
- the type-1 subframe may be defined to include 6 OFDMA symbols
- the type-2 subframe includes 7 OFDMA symbols
- the type-3 subframe includes 5 OFDMA symbols
- the type-4 subframe includes 9 OFDMA symbols.
- One frame may include subframes of the same type.
- one frame may include different types of subframes. That is, the number of OFDMA symbols included in each subframe in one frame may be the same or different. Alternatively, the number of OFDMA symbols of at least one subframe in one frame may be different from the number of OFDMA symbols of the remaining subframes in the frame.
- a time division duplex (TDD) scheme or a frequency division duplex (FDD) scheme may be applied to the frame.
- TDD time division duplex
- FDD frequency division duplex
- each subframe is used for uplink transmission or downlink transmission at different times at the same frequency.
- subframes in a frame of the TDD scheme are classified into an uplink subframe and a downlink subframe in the time domain.
- each subframe is used for uplink transmission or downlink transmission at different frequencies at the same time.
- subframes in the frame of the FDD scheme are divided into an uplink subframe and a downlink subframe in the frequency domain.
- Uplink transmission and downlink transmission occupy different frequency bands and may be simultaneously performed.
- the SFH may carry essential system parameters and system configuration information.
- the SFH may be located in the first subframe in the superframe.
- SFH may occupy the last five OFDMA symbols of the first subframe.
- the superframe header may be classified into primary SFH (P-SFH) and secondary SFH (S-SFH; secondary-SFH).
- P-SFH and S-SFH may be transmitted every superframe.
- S-SFH may be transmitted in two consecutive superframes.
- Information transmitted to the S-SFH can be divided into three subpackets (S-SFH SP1, S-SFH SP2, S-SFH SP3). Each subpacket may be transmitted periodically with a different period.
- S-SFH SP1 may be transmitted in the shortest period
- S-SFH SP3 may be transmitted in the longest period.
- S-SFH SP1 contains information about network re-entry.
- S-SFH SP2 includes information about initial network entry and network discovery.
- S-SFH SP3 contains the remaining important system information.
- One OFDMA symbol includes a plurality of subcarriers, and the number of subcarriers is determined according to the FFT size. There are several types of subcarriers. The types of subcarriers can be divided into data subcarriers for data transmission, pilot subcarriers for various measurements, guard bands and null carriers for DC carriers.
- M2M Device to Device Communication
- M2M The device-to-device communication
- Machine to Machine refers to communication between an electronic device and an electronic device as it is. In other words, it means communication between things. In general, although it refers to wired or wireless communication between electronic devices or communication between a device controlled by a person and a machine, it is used to mean a wireless communication between an electronic device and an electronic device, that is, between devices. In addition, M2M terminals used in a cellular network are inferior in performance or capability to general terminals.
- the characteristics of the M2M environment is as follows.
- M2M machine to machine
- MTC machine type communication
- M2M terminals in a cell having the above characteristics may transmit or receive signals between terminals or to a base station using a multi-hop configuration or using a hierarchical structure.
- the base station may transmit data to the M2M terminal existing in another layer or lower, or may receive a signal from other M2M terminals to transmit a signal to another M2M terminal or base station.
- direct communication may be performed between terminals, not relays.
- each M2M terminals may be connected to each other in an upper / lower structure to transmit a signal.
- there may not be a high / low concept, but it is also possible to apply the high / low concept in the same way.
- MS 1 receives a signal transmitted by a base station and transmits it to MS 2.
- the MS1 may transmit a signal not only to the MS 2 but also to another terminal MS below.
- MS 2 refers to a terminal below MS 1.
- MS 2 Upon receiving the signal from MS 1, MS 2 transmits the received signal to the lower MS, and up to MS N in this manner.
- many terminals may be connected in a multi-hop form or hierarchically between MS 2 and MS N.
- a signal may be transmitted as follows for signal transmission between M2M terminals.
- the lower M2M terminal may transmit a signal to another M2M terminal or a base station using the upper M2M terminal.
- the existing persistent scheduling method may be used for traffic having a time-controlled characteristic, the corresponding traffic may have a time tolerant characteristic.
- the map for resource release is transmitted as in the conventional method, and the persistent resource allocation map for allocation again is transmitted in the next cycle. This may cause unnecessary map overhead in one resource allocation.
- the present specification transmits information indicating whether to permanently release or temporarily deallocate to a terminal when resource allocation for fixed resource allocation is released, and thus, in case of temporary allocation, the existing fixed resource is not transmitted again without transmitting a persistent resource allocation map.
- An object of the present invention is to provide a method for transmitting and receiving data with a base station through allocation.
- the present specification provides a fixed resource allocation method in a wireless access system, the method comprising: receiving a first map message including fixed resource allocation information from a base station; Transmitting and receiving a data burst with the base station through a fixed resource region included in the fixed resource allocation information; And receiving a second map message from the base station, wherein the second map message includes fixed resource de-allocation type information, wherein the fixed resource de-allocation type information includes information on whether the de-allocation of the fixed allocated resource is permanent de-allocation or temporary ( temporal) information indicating whether the allocation is released.
- the fixed resource allocation information further includes fixed resource allocation period information (Allocation Period).
- Allocation Period fixed resource allocation period information
- the fixed resource allocation type information is determined by the fixed resource allocation period information. It is included in the second map message.
- the second map message may further include fixed resource allocation period information (Num de-allocation).
- the fixed resource deassignment interval information indicates a length of a section in which the temporary deassignment continues.
- the length of the interval is defined in units of frames.
- the method may further include: receiving, from the base station, a third map message including resource allocation information in the fixed resource allocation release period; And transmitting an uplink data burst to the base station through a resource allocation region included in the resource allocation information.
- first map message and the second map message is characterized in that the Persistent Allocation A-MAP.
- the third map message may be a basic assignment map information element (Basic Assignment A-MAP IE).
- the temporary deassignment may be one time de-allocation.
- the present specification provides a terminal for performing fixed resource allocation in a wireless access system, the wireless communication unit for transmitting and receiving a radio signal with the outside; And a control unit connected to the wireless communication unit, wherein the control unit controls the wireless communication unit to receive a first map message including fixed resource allocation information from a base station, and includes a fixed resource area included in the fixed resource allocation information.
- the wireless communication unit is controlled to transmit and receive a data burst with the base station through the wireless communication unit, and the wireless communication unit is controlled to receive a second map message including fixed resource deassignment type information from the base station. It is characterized in that the information indicating whether the de-allocation of the fixed allocated resource is a permanent or temporary de-allocation.
- the fixed resource allocation information further includes fixed resource allocation period information (Allocation Period).
- Allocation Period fixed resource allocation period information
- the fixed resource allocation type information is determined by the fixed resource allocation period information. It is included in the second map message.
- the second map message may further include fixed resource allocation period information (Num de-allocation).
- the fixed resource deassignment interval information indicates a length of a section in which the temporary deassignment continues.
- the length of the interval is defined in units of frames.
- the control unit may control the wireless communication unit to transmit and receive a data burst with the base station through the fixed resource allocation area included in the first map message after the fixed resource allocation release period.
- the control unit may control the wireless communication unit to receive a third map message including resource allocation information from the base station in the fixed resource allocation release period, and through the resource allocation region included in the resource allocation information, the base station.
- the wireless communication unit is controlled to transmit an uplink data burst.
- the map overhead transmitted to the terminal can be reduced by 50% (transmitted 2 to 1 times) than the existing one. There is.
- FIG. 1 shows an example of a frame structure.
- FIG. 2 is a diagram illustrating a fixed resource allocation method according to an embodiment of the present specification.
- FIG. 3 is a method for transmitting an uplink data burst (UL data burst) to a base station in a fixed resource allocation release period through an UL basic assignment map information element (UL Basic Assignment A-MAP IE) according to another embodiment of the present disclosure; It is a flow chart showing.
- UL data burst uplink data burst
- UL Basic Assignment A-MAP IE UL Basic Assignment A-MAP IE
- FIG. 4 is a diagram illustrating a fixed resource allocation method when fixed resource allocation type information indicates permanent de-allocation for fixed allocation resources according to an embodiment of the present disclosure.
- FIG. 5 is a diagram illustrating a fixed resource allocation method when fixed resource allocation type information indicates one time de-allocation of a fixed allocation resource according to an embodiment of the present disclosure.
- FIG. 6 is a diagram illustrating a fixed resource allocation method when fixed resource allocation type information indicates temporary de-allocation according to one embodiment of the present specification.
- FIG. 7 is a block diagram illustrating a wireless communication system according to an exemplary embodiment of the present specification.
- the base station has a meaning as a terminal node of the network that directly communicates with the terminal.
- the specific operation described as performed by the base station in this document may be performed by an upper node of the base station in some cases.
- 'Base station' may be replaced by terms such as a fixed station, a Node B, an eNode B (eNB), an access point, and the like.
- terminal may be replaced with terms such as a user equipment (UE), a mobile station (MS), a mobile subscriber station (MSS), and the like.
- Embodiments of the present specification may be implemented through various means. For example, embodiments of the present specification may be implemented by hardware, firmware, software, or a combination thereof.
- a method according to embodiments of the present disclosure may include one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs). Field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, and the like.
- ASICs application specific integrated circuits
- DSPs digital signal processors
- DSPDs digital signal processing devices
- PLDs programmable logic devices
- FPGAs Field programmable gate arrays
- processors controllers, microcontrollers, microprocessors, and the like.
- the method according to the embodiments of the present specification may be implemented in the form of a module, procedure or function that performs the functions or operations described above.
- the software code may be stored in a memory unit and driven by a processor.
- the memory unit may be located inside or outside the processor, and may exchange data with the processor by various known means.
- Persistent scheduling in 802.16e or 16m is a proposed technique to reduce resource allocation overhead when VoIP allocates resources for connections with a relatively fixed packet size and periodic traffic patterns.
- a persistent resource allocation map (e.g., DL / UL persistent allocation MAP / A-MAP IE) is transmitted to the terminal.
- Resources allocated through this persistent resource allocation control information are allocated with periodicity without further control information through information included in the corresponding control information map.
- the allocated persistent resource is maintained until it is released again, changed, or an error occurs.
- passing a persistent resource allocation map for releasing resources causes the allocated resources to be released.
- Table 1 below shows an example of the DL Persistent Allocation A-MAP format defined in 16m.
- an allocation period represents a period in which resources allocated in a map are reassigned. For example, if the allocation period value is set to '0b10', it indicates that resources are allocated at the same resource position of the same subframe after 4 frames. If the allocation period value is set to '0b00', it indicates that the resource is deleted.
- the methods proposed herein may be usefully used in the case of fixed (persistent) resource allocation of machine to machine (M2M) devices having a time tolerant characteristic.
- M2M machine to machine
- FIG. 2 is a diagram illustrating a fixed resource allocation method according to an embodiment of the present specification.
- the terminal receives a first map message including fixed resource allocation information from the base station (S201).
- the first map message means DL / UL PA A-MAP.
- the first map message is not limited to DL / UL PA A-MAP but may be a MAC control message or a header.
- the fixed resource allocation information includes fixed resource allocation period information (Allocation Period) included in the DL / UL PA A-MAP, region information (Resource Index) to which the fixed resource is allocated, and the like.
- the terminal fixedly transmits and receives a downlink or uplink data burst with the base station through the fixed resource region included in the fixed resource allocation information (S202).
- the terminal receives a second map message including the fixed resource deassignment type information from the base station (S203).
- the second map message means DL / UL PA A-MAP.
- the fixed resource allocation period information included in the PA A-MAP is set to 'Ob00' (De-allocation), for example.
- the fixed resource de-allocation type information included in the PA A-MAP indicates whether de-allocation of the fixed allocated resource is permanent de-allocation or temporary de-allocation.
- the temporary deallocation includes the resource being deallocated only once.
- the temporary deassignment may be a case where the fixed resource deassignment occurs in only one frame section or in a plurality of frame sections in succession.
- the second map message includes Num de-allocation (eg, resource de-allocation frame number) information indicating how many de-allocations occur consecutively. Done.
- Num de-allocation eg, resource de-allocation frame number
- the terminal is based on the fixed resource deassignment type information included in the DL / UL PA A-MAP received from the base station, i.e., when 1) the previously allocated fixed resources are permanently released at the time of receiving the PA A-MAP. If fixed resource allocation is needed again, the fixed resource allocation is re-acquired from the base station through a bandwidth request procedure, or 2) if the fixed allocated resource is temporarily deallocated, it is allocated before the next cycle after the temporary deallocation. Through the fixed resource region, it is possible to transmit and receive data bursts with the base station.
- FIG. 3 is a method for transmitting an uplink data burst (UL data burst) to a base station in a fixed resource allocation release period through an UL basic assignment map information element (UL Basic Assignment A-MAP IE) according to another embodiment of the present disclosure; It is a flow chart showing.
- UL data burst uplink data burst
- UL Basic Assignment A-MAP IE UL Basic Assignment A-MAP IE
- the terminal When the terminal receives the PA A-MAP including the fixed resource deassignment type information indicating temporary deassignment of the fixed resource from the base station, the terminal receives a UL Basic Assignment A-MAP IE from the base station in the temporary deassignment interval ( S304).
- the terminal transmits an uplink data burst to the base station through the resource region allocated through the received UL Basic Assignment A-MAP IE (S305).
- Table 2 below shows an example of a DL / UL PA A-MAP format including resource de-allocation type according to one embodiment of the present specification.
- DL / UL PA A-MAP includes resource de-allocation type information indicating whether the resource de-allocation is once or permanently when allocation period information indicating fixed resource de-allocation is set. .
- the resource allocation release type is instructed to permanently cancel resource allocation. That is, in the case of permanent de-allocation, this indicates that de-allocation continues. In this case, the base station should transmit the persistent allocation A-MAP back to the terminal in order to allocate the persistent resource to the terminal again.
- De-allocation Type when the De-allocation Type is set to '0b1', it indicates that resource de-allocation occurs only once. That is, in the case of one-time de-allocation, de-allocation is performed only once when the corresponding PA A-MAP is transmitted, and it indicates that the persistent allocation previously used can be used from the next cycle.
- FIG. 4 is a diagram illustrating a fixed resource allocation method when fixed resource allocation type information indicates permanent de-allocation for a fixed allocation resource according to one embodiment of the present specification.
- the terminal receives Persistent Allocation A-MAP indicating resource de-allocation from the base station with respect to a fixed resource (eg, set to Allocation Period '0b00').
- the PA A-MAP includes de-allocation type information.
- the terminal determines that the allocated fixed resource is completely released until receiving the persistent allocation A-MAP from the base station again.
- the terminal starts a bandwidth request procedure in order to receive a resource allocation request from the base station.
- the base station allocates a fixed resource to the terminal by transmitting a persistent allocation A-MAP to the terminal.
- FIG. 5 is a diagram illustrating a fixed resource allocation method when fixed resource allocation type information indicates one time de-allocation of a fixed allocation resource according to an embodiment of the present disclosure.
- a terminal when a terminal receives a PA A-MAP including fixed resource de-allocation type information indicating one-time de-allocation from a base station, the terminal receives the PA A-MAP. It can be seen that the persistent resource is de-allocated only once at the time point of reception from the base station.
- the time point at which the PA A-MAP is received may be a frame for receiving the PA A-MAP.
- the terminal does not use resources only at the time of receiving the PA A-MAP, but keeps the parameters related to the existing persistent allocation.
- the terminal transmits a packet generated using the existing persistent resource in the next cycle after the resource allocation is released without performing the bandwidth request BR to request the resource allocation to the base station.
- the base station having one-time de-allocation to a specific terminal can transmit a packet not transmitted by the terminal until the next transmission period after the one time de-allocation time (UL basic assignment A-MAP).
- UL basic assignment A-MAP UL basic assignment A-MAP
- resources may be allocated to the terminal.
- the one-time de-allocated terminal may expect to receive resource allocation by receiving UL basic assignment map information element (UL basic assignment A-MAP IE) from the base station until the next transmission period.
- UL basic assignment map information element UL basic assignment A-MAP IE
- the UE that has received the Persistent allocation A-MAP including the one-time de-allocation has a packet to be transmitted at the corresponding time, it waits to be granted from the base station for a predetermined time (until the next transmission period) without immediately performing the bandwidth request procedure.
- the terminal may be allocated resources through a process of requesting bandwidth from the base station again.
- Table 3 below shows another example of a DL / UL PA A-MAP format including resource de-allocation type information and resource de-allocation section information (Num de-allocation) according to an embodiment of the present specification.
- Table 3 below shows a case in which temporal de-allocation is used instead of the one time de-allocation of Table 2 for resource allocation type information.
- Table 3 shows resource de-allocation section information indicating how long resource de-allocation continues in a case where resource de-allocation type information indicates that resource de-allocation is permanent or temporary de-allocation and indicates that the resource de-allocation is continuous. de-allocation).
- resource de-allocation type information is set to '0b1', this indicates that de-allocation occurs temporarily.
- the num de-allocation information indicates how many resources are released until starting from the frame in which the PA A-MAP is received.
- Temporal de-allocation to a specific terminal allows the base station to transmit packets not transmitted by the terminal until after the temporary de-allocation time until the next Persistent Allocation starts (UL basic assignment A-MAP IE) It can allocate resources to the terminal using.
- Temporal de-allocated UE may expect to receive resources from the base station using UL basic assignment map information element (UL basic assignment A-MAP IE) until the next persistent allocation starts.
- UL basic assignment A-MAP IE UL basic assignment map information element
- FIG. 6 is a diagram illustrating a fixed resource allocation method when fixed resource allocation type information indicates temporary de-allocation according to one embodiment of the present specification.
- the base station transmits the PA A-MAP by setting resource de-allocation type information to the terminal as an example, '0b1' (temporal de-allocation).
- the temporary resource de-allocation period is maintained for two frames from the frame receiving the PA A-MAP. That is, the UE may see that fixed resources are de-allocated for two consecutive frames from the frame from which the PA A-MAP is received, and that the permanent resources start to be allocated to the UE again from the next period.
- FIG. 7 is a block diagram illustrating a wireless communication system according to an exemplary embodiment of the present specification.
- the base station 710 includes a control unit 711, a memory 712, and a radio frequency unit (RF) unit 713.
- RF radio frequency unit
- the controller 711 implements the proposed function, process and / or method. Layers of the air interface protocol may be implemented by the controller 711.
- the controller 711 may control the wireless communication unit to transmit the PA A-MAP including the resource allocation type information indicating the permanent or temporary resource allocation release to the terminal.
- the memory 712 is connected to the controller 711 to store a protocol or parameter for updating an E-MBS related parameter.
- the RF unit 713 is connected to the control unit 711 to transmit and / or receive a radio signal.
- the terminal 720 includes a controller 721, a memory 722, and a radio communication (RF) unit 723.
- RF radio communication
- the controller 721 implements the proposed function, process and / or method. Layers of the air interface protocol may be implemented by the controller 721.
- the controller 721 When the control unit 721 receives the PA A-MAP including the resource allocation type information indicating that the fixed resource allocation is temporarily released, the controller 721 transmits and receives a data burst with the base station through the pre-allocated fixed resource region after the temporary release period.
- the wireless communication unit can be controlled.
- the memory 712 is connected to the controller 721 to store a protocol or parameter for updating an E-MBS related parameter.
- the RF unit 713 is connected to the control unit 721 to transmit and / or receive a radio signal.
- the controllers 711 and 721 may include an application-specific integrated circuit (ASIC), another chipset, a logic circuit, and / or a data processing device.
- the memory 712, 722 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices.
- the RF units 713 and 723 may include a baseband circuit for processing a radio signal.
- the above-described technique may be implemented as a module (process, function, etc.) for performing the above-described function.
- the module may be stored in the memories 712 and 722 and executed by the controllers 711 and 721.
- the memories 712 and 722 may be inside or outside the controllers 711 and 721, and may be connected to the controllers 711 and 721 by various well-known means.
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Abstract
Description
Syntax | Size in bits | Description/Notes |
DL Persistent Allocation A-MAP_IE(){ | ||
A-MAP IE Type | 4 | DL Persistent Allocation A-MAP IE |
Allocation Period | 2 | Period of persistent allocationIf (Allocation Period ==0b00), it indicates the deallocation of a persistently allocated resource.0b00: deallocation0b01: 2 frames0b10: 4 frames0b11: 8 frames |
If (Allocation Period ==0b00){ | ||
Resource Index | 11 | Confirmation of the resource index for a previously assigned persistent resource that has been deallocated5 MHz: 0 in first 2 MSB bits + 9 bits for resource index10 MHz: 11 bits for resource index20 MHz: 11 bits for resource indexResource index includes location and allocation size |
Long TTI Indicator | 1 | Indicates number of AAI subframes spanned by the allocated resource.0b0: 1 AAI subframe (default)0b1: 4 DL AAI subframes for FDD or all DL AAI subframes for TDD |
HFA | 6 | Explicit Index for HARQ Feedback Allocation to acknowledge receipt of deallocation A-MAP IE |
Reserved | 16 | |
} else if (Allocation!= 0b00){ | ||
… | … | … |
Resource Index | 11 | 5 MHz: 0 in first 2 MSB bits + 9 bits for resource index10 MHz: 11 bits for resource index20 MHz: 11 bits for resource indexResource index includes location and allocation size |
Long TTI Indicator | 1 | Indicates number of AAI subframes spanned by the allocated resource. 0b0: 1 AAI subframe (default)0b1: 4 DL AAI subframes for FDD or all DL AAI subframes for TDD |
… | … | … |
Syntax | Size in bits | Description/Notes |
DL/UL Persistent Allocation A-MAP_IE(){ | - | |
A-MAP IE Type | 4 | DL/UL Persistent Allocation A-MAP IE |
Allocation Period | 2 | Period of persistent allocationIf (Allocation Period ==0b00), it indicates the deallocation of a persistently allocated resource. 0b00: deallocation0b01: 2 frames0b10: 4 frames0b11: 8 frames |
If (Allocation Period ==0b00){ | ||
… | … | … |
De-allocation type | 1 | 0b0: Permanent deallocation 0b1: One-time de-allocation |
Reserved | 15 | |
… | … | … |
Syntax | Size in bits | Description/Notes |
DL/UL Persistent Allocation A-MAP_IE(){ | - | |
A-MAP IE Type | 4 | DL/UL Persistent Allocation A-MAP IE |
Allocation Period | 2 | Period of persistent allocationIf (Allocation Period ==0b00), it indicates the deallocation of a persistently allocated resource. 0b00: deallocation0b01: 2 frames0b10: 4 frames0b11: 8 frames |
If (Allocation Period ==0b00){ | ||
… | … | … |
De-allocation type | 1 | 0b0: Permanent deallocation 0b1: Temporal de-allocation |
If (De-allocation type == 0b1) { | ||
Num_de-allocation | 2 | 몇 번 de-allocation 이 연속해서 발생하는 지를 가리킨다. 예) 0b00: 1 번 0b01: 2 번 0b10: 3 번 0b11: 4 번 |
Claims (18)
- 무선 접속 시스템에서, 고정 자원 할당 방법에 있어서,고정 자원 할당 정보를 포함하는 제 1 맵 메시지를 기지국으로부터 수신하는 단계;상기 고정 자원 할당 정보에 포함된 고정 자원 영역을 통해 상기 기지국과 데이터 버스트를 송수신하는 단계; 및고정 자원 할당 해제 타입 정보를 포함하는 제 2 맵 메시지를 기지국으로부터 수신하는 단계를 포함하되,상기 고정 자원 할당 해제 타입 정보는 고정 할당된 자원의 할당 해제가 영구적(permanent) 할당 해제인지 또는 일시적(temporal) 할당 해제인지를 지시하는 정보인 것을 특징으로 하는 방법.
- 제 1항에 있어서,상기 고정 자원 할당 정보는 고정 자원 할당 주기 정보(Allocation Period)를 더 포함하며,상기 고정 자원 할당 주기 정보가 고정 할당된 자원의 할당 해제를 지시하는 경우, 상기 고정 자원 할당 해제 타입 정보가 상기 제 2 맵 메시지에 포함되는 것을 특징으로 하는 방법.
- 제 1항에 있어서,상기 고정 할당 해제 타입 정보가 고정 할당된 자원의 일시적 할당 해제를 지시하는 경우, 상기 제 2 맵 메시지는 고정 자원 할당 해제 구간 정보(Num de-allocation)를 더 포함하는 것을 특징으로 하는 방법.
- 제 3항에 있어서,상기 고정 자원 할당 해제 구간 정보는 상기 일시적 할당 해제가 지속되는 구간의 길이를 나타내며, 상기 구간의 길이는 프레임 단위로 정의되는 것을 특징으로 하는 방법.
- 제 3항에 있어서,상기 고정 자원 할당 해제 구간 이후, 상기 제 1 맵 메시지에 포함된 고정 자원 할당 영역을 통해 상기 기지국과 데이터 버스트를 송수신하는 것을 특징으로 하는 방법.
- 제 1항에 있어서,상기 고정 자원 할당 해제 구간에서 자원 할당 정보를 포함하는 제 3 맵 메시지를 상기 기지국으로부터 수신하는 단계; 및상기 자원 할당 정보에 포함된 자원 할당 영역을 통해, 상기 기지국으로 상향링크 데이터 버스트를 전송하는 단계를 더 포함하여 이루어지는 것을 특징으로 하는 방법.
- 제 1항에 있어서,상기 제 1 맵 메시지 및 제 2 맵 메시지는 고정 할당 에이 맵(Persistent Allocation A-MAP)인 것을 특징으로 하는 방법.
- 제 6항에 있어서,상기 제 3 맵 메시지는 기본 할당 맵 정보 요소(Basic Assignment A-MAP IE)인 것을 특징으로 하는 방법.
- 제 1항 또는 제 5항에 있어서,상기 일시적 할당 해제는 한 번의 자원 할당 해제(one time de-allocation)인 것을 특징으로 하는 방법.
- 무선 접속 시스템에서, 고정 자원 할당을 수행하는 단말에 있어서,외부와 무선신호를 송수신하기 위한 무선통신부; 및상기 무선통신부와 연결되어 있는 제어부를 포함하되, 상기 제어부는,고정 자원 할당 정보를 포함하는 제 1 맵 메시지를 기지국으로부터 수신하도록 상기 무선통신부를 제어하며, 상기 고정 자원 할당 정보에 포함된 고정 자원 영역을 통해 상기 기지국과 데이터 버스트를 송수신하도록 상기 무선통신부를 제어하며, 고정 자원 할당 해제 타입 정보를 포함하는 제 2 맵 메시지를 기지국으로부터 수신하도록 상기 무선통신부를 제어하되,상기 고정 자원 할당 해제 타입 정보는 고정 할당된 자원의 할당 해제가 영구적(permanent) 할당 해제인지 또는 일시적(temporal) 할당 해제인지를 지시하는 정보인 것을 특징으로 하는 단말.
- 제 10항에 있어서,상기 고정 자원 할당 정보는 고정 자원 할당 주기 정보(Allocation Period)를 더 포함하며,상기 고정 자원 할당 주기 정보가 고정 할당된 자원의 할당 해제를 지시하는 경우, 상기 고정 자원 할당 해제 타입 정보가 상기 제 2 맵 메시지에 포함되는 것을 특징으로 하는 단말.
- 제 10항에 있어서,상기 고정 할당 해제 타입 정보가 고정 할당된 자원의 일시적 할당 해제를 지시하는 경우, 상기 제 2 맵 메시지는 고정 자원 할당 해제 구간 정보(Num de-allocation)를 더 포함하는 것을 특징으로 하는 단말.
- 제 12항에 있어서,상기 고정 자원 할당 해제 구간 정보는 상기 일시적 할당 해제가 지속되는 구간의 길이를 나타내며, 상기 구간의 길이는 프레임 단위로 정의되는 것을 특징으로 하는 단말.
- 제 12항에 있어서, 상기 제어부는,상기 고정 자원 할당 해제 구간 이후, 상기 제 1 맵 메시지에 포함된 고정 자원 할당 영역을 통해 상기 기지국과 데이터 버스트를 송수신하도록 상기 무선통신부를 제어하는 것을 특징으로 하는 단말.
- 제 10항에 있어서, 상기 제어부는,상기 고정 자원 할당 해제 구간에서 자원 할당 정보를 포함하는 제 3 맵 메시지를 상기 기지국으로부터 수신하도록 상기 무선통신부를 제어하며, 상기 자원 할당 정보에 포함된 자원 할당 영역을 통해, 상기 기지국으로 상향링크 데이터 버스트를 전송하도록 상기 무선통신부를 제어하는 것을 특징으로 하는 단말.
- 제 10항에 있어서,상기 제 1 맵 메시지 및 제 2 맵 메시지는 고정 할당 에이 맵(Persistent Allocation A-MAP)인 것을 특징으로 하는 단말.
- 제 15항에 있어서,상기 제 3 맵 메시지는 기본 할당 맵 정보 요소(Basic Assignment A-MAP IE)인 것을 특징으로 하는 단말.
- 제 10항 또는 제 14항에 있어서,상기 일시적 할당 해제는 한 번의 자원 할당 해제(one time de-allocation)인 것을 특징으로 하는 단말.
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US13/641,075 US8780848B2 (en) | 2010-04-15 | 2011-04-15 | Method and apparatus for persistent resource allocation in a wireless access system |
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CN103975639A (zh) * | 2011-12-08 | 2014-08-06 | Lg电子株式会社 | 无线通信***中发送和接收静态调度信息的装置和方法 |
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JPWO2013179400A1 (ja) * | 2012-05-29 | 2016-01-14 | 富士通株式会社 | 無線通信システム、無線局および基地局 |
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CN102845117A (zh) | 2012-12-26 |
JP5788495B2 (ja) | 2015-09-30 |
WO2011129660A3 (ko) | 2012-03-15 |
US20130028227A1 (en) | 2013-01-31 |
CA2793065A1 (en) | 2011-10-20 |
US8780848B2 (en) | 2014-07-15 |
CN102845117B (zh) | 2015-10-14 |
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