CN101490979B - Apparatus and method for reducing volume of resource allocation information message in a broadband wireless communication system - Google Patents
Apparatus and method for reducing volume of resource allocation information message in a broadband wireless communication system Download PDFInfo
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- 230000000737 periodic effect Effects 0.000 claims description 8
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
- H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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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
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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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
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Abstract
An apparatus and a method for reducing the volume of a resource allocation information message in a broadband wireless communication system are provided, in which a scheduler determines whether to generate uplink control region allocation information, and a generator generates the uplink control region allocation information according to a result of the determination.
Description
Technical field
The present invention relates generally to a kind of system of broadband wireless communication, more specifically, relate to a kind of for the apparatus and method that reduce volume of resource allocation information message at system of broadband wireless communication.
Background technology
Be called the next generation communication system of the 4th generation (4G) system just in active research, in order to the service of (QoS) demand that has different service quality is provided to the user with 100Mbps or more speed.A very positive research field is paid close attention to and is given security to the high-speed service with mobility and QoS of broadband wireless access (BWA) communication system, and described broadband wireless access (BWA) communication system for example is wireless lan (wlan) and wireless MAN (WMAN).Main communication system like this is Institute of Electrical and Electric Engineers (IEEE) 802.16e system.
The main standard that IEEE 802.16 working groups research and develop is IEEE 802.16d and IEEE 802.16e, and they are classified as single carrier, OFDM (OFDM) and OFDM (OFDMA).IEEE 802.16d/e OFDMA standard is distributed with the resource based on radio channel state that time and frequency resource define in down link (DL) and up link (UL) frame structure and the definition frame, in order to transmit digit information effectively to receiver.
Fig. 1 illustrates the frame structure in traditional ofdma communication system.
With reference to figure 1, the OFDMA frame comprises DL frame 110 and UL frame 120.
DL frame 110 comprise lead code (preambe) 111, frame control stem (frame control header, FCH) 113, DL-MAP 115, UL-MAP 117 and DL data burst (tata burst) 119.
Lead code 111 provides mobile radio station (MS) to obtain initial synchronisation and carries out the information that Cell searching needs.The encoding scheme of FCH 113 expression DL-MAP 115 and UL-MAP 117.DL-MAP 115 is provided for the resource allocation information message of each MS, and UL-MAP 117 is provided for treating the resource allocation information message of the control area 121 of the UL frame 120 that transmits from MS and UL data burst 123.(BS) is transported to MS to DL data burst 119 from the base station with user data.
UL frame 120 comprises control area 121 and UL data burst 123.Control area 121 is transmitted and is used for the required control information of BS of communicating by letter from MS, and UL data burst 123 is transported to BS with user data from MS.
Control area 121 comprises range finding (ranging) channel 151, channel quality information (CQI) channel 153, true (ACK) channel 155 and depth measurement (sounding) channel 157 received.
MS can send to BS with data on range channel 151, and does not need to distribute from the resource of BS.Range channel 151 is used for initial network and enters (entry), transfers (handoff) request or resource allocation request.CQI channel 153 is notified to BS with the DL channel status of MS.Whether ack channel 155 has successfully received the DL data burst to the BS instruct MS.Depth measurement channel 157 is that BS therefrom obtains the zone about the channel information of MS.
In above-mentioned OFDMA frame structure, MAP information and data burst are that resource is competed, because the MAP zone that configuration has resource allocation information message and user data bursts in same frame.MAP information and user's burst are the relation of compromise (trade-off) aspect resource.This means the increase along with the MAP amount of information, the stock number that can be used for user's burst reduces.Although frame structure is dynamically changeable, this situation seldom in the system of reality realizes.Especially, the control area 121 of UL frame 120 trends towards having identical configuration at every frame.The transmission of same resource allocation information message causes can be used for a resource shrinkage of data burst in every frame, thereby has reduced the whole data rate of system.
Summary of the invention
Technical scheme
Problem above an aspect of of the present present invention has solved at least basically and/or shortcoming and following at least advantage is provided.Therefore, an aspect of of the present present invention provides a kind of for the apparatus and method that reduce the expense of resource allocation information message at system of broadband wireless communication.
Another aspect of the present invention provides a kind of apparatus and method that send the data rate that increases user data for the cycle by the resource allocation information message that is associated with the presumptive area of system of broadband wireless communication.
According to an aspect of the present invention, the device of BS in a kind of system of broadband wireless communication is provided, wherein, scheduler determines whether to generate up link control area assignment information, and maker is according to determining that the result generates described up link control area assignment information.
According to a further aspect in the invention, the device of MS in a kind of system of broadband wireless communication is provided, wherein, receiver receiving resource allocation information message, if do not comprise up link control area assignment information with described resource allocation information message, then interpreter keeps the up link control area assignment information store, if and described resource allocation information message comprises up link control area assignment information, then interpreter is updated to the up link control area assignment information of storing the up link control area assignment information that comprises.
According to a further aspect in the invention, the method of operation of BS in a kind of system of broadband wireless communication is provided, wherein, determine whether to generate up link control area assignment information, described up link control area assignment information is the resource allocation information about the up link control area, and generates described up link control area assignment information according to definite result.
In accordance with a further aspect of the present invention, the method of operation of MS in a kind of system of broadband wireless communication is provided, wherein, receiving resource allocation information message, if described resource allocation information message does not comprise conduct about the up link control area assignment information of the resource allocation information of up link control area, then keep the up link control area assignment information store, if and described resource allocation information message comprises up link control area assignment information, then the up link control area assignment information of storing is updated to this up link control area assignment information.
According to another aspect of the invention, the method of operation of BS in a kind of system of broadband wireless communication is provided, wherein, generation comprises the broadcast of up link control area information, described up link control area information is the resource allocation information about the up link control area, and the frame of every predetermined number is broadcasted described broadcast.
In accordance with a further aspect of the present invention, provide the method for operation of the MS in a kind of system of broadband wireless communication, wherein, the frame of every predetermined number receives broadcast, and obtains up link control area assignment information by the decipher broadcast.
In accordance with a further aspect of the present invention, provide the device of the BS in a kind of system of broadband wireless communication, wherein, maker generates the broadcast that comprises up link control area assignment information, and the frame of the every predetermined number of transmitter is broadcasted described broadcast.
In accordance with a further aspect of the present invention, provide the device of the MS in a kind of system of broadband wireless communication, wherein, the frame of the every predetermined number of receiver receives broadcast, and interpreter obtains up link control area assignment information by the decipher broadcast.
In accordance with a further aspect of the present invention, the method of operation of BS in a kind of system of broadband wireless communication is provided, wherein, generation comprises up link control area assignment information and about the broadcast of the periodical information of this up link control area assignment information, and described broadcast is broadcast to MS.
In accordance with a further aspect of the present invention, the method of operation of MS in a kind of system of broadband wireless communication is provided, wherein, reception comprises up link control area assignment information and about the broadcast of the periodical information of this up link control area assignment information, and obtains described up link control area assignment information by the described broadcast of decipher.
Description of drawings
The following detailed description of carrying out from by reference to the accompanying drawings the time, of the present invention above and other aspects, feature and advantage will become more obvious, in the accompanying drawing:
Fig. 1 illustrates the frame structure in traditional ofdma communication system;
Fig. 2 is the block diagram according to the transmitter in the system of broadband wireless communication of the present invention;
Fig. 3 is the block diagram according to the receiver in the system of broadband wireless communication of the present invention;
Fig. 4 is the flow chart that is shown in the operation that is used for generating resource allocation information message among the BS of system of broadband wireless communication according to an exemplary embodiment of the present invention;
Fig. 5 is the flow chart that is shown among the MS of system of broadband wireless communication according to an exemplary embodiment of the present invention for detection of the operation of resource allocation information message;
Fig. 6 is the flow chart that is shown in the operation that is used for generating resource allocation information message among the BS of the system of broadband wireless communication of another exemplary embodiment according to the present invention;
Fig. 7 is the flow chart that is shown among the MS of the system of broadband wireless communication of another exemplary embodiment according to the present invention for detection of the operation of resource allocation information message; With
Fig. 8 is the flow chart that is shown among the MS of the system of broadband wireless communication of the 3rd exemplary embodiment according to the present invention for detection of the operation of resource allocation information message.
Embodiment
The preferred embodiments of the present invention are described below with reference to the accompanying drawings.In the following description, therefore known function or structure owing to can be not described in detail in the fuzzy the present invention of unnecessary details.
The invention discloses a kind of apparatus and method that increase the data rate of system by the expense that reduces the resource allocation information message in the system of broadband wireless communication.To carry out following description as example with the OFDMA system in the context.
Fig. 2 is the block diagram according to the transmitter of the BS in the ofdma communication system of the present invention.
With reference to figure 2, transmitter comprises scheduler 201, MAP maker 203, channel encoder 205, modulator 207, resource mapper 209, OFDM modulator 211, digital to analog converter (DAC) 213 and radio frequency (RF) transmitter 215.
MAP maker 203 generates MAP message, is resource allocation information message based on the resource allocation scheduling information that receives from scheduler 201.Especially, MAP maker 203 generates MAP message according to whether having generated UL control area assignment information in the scheduler 201, just, if generated UL control area assignment information, then MAP maker 203 generates the MAP message that comprises UL control area assignment information.In this case, MAP maker 203 comprises the effective duration information that is associated with UL control area assignment information in MAP message.On the other hand, if do not generate UL control area assignment information, then MAP maker 203 generates the MAP message that does not have UL control area assignment information.
The resource allocation information message that channel encoder 205 is encoded and received from MAP maker 203 with predetermined encoding rate.Modulator 207 will be modulated into code element from the coded data that channel encoder 205 receives with predetermined modulation scheme (for example Quadrature Phase Shift Keying (QPSK)).
Fig. 3 is the block diagram according to the receiver of the MS in the ofdma communication system of the present invention.
With reference to figure 3, receiver comprises RF receiver 301, analog to digital converter (ADC) 303, ofdm demodulator 305, MAP extractor 307, demodulator 309, channel decoder 311 and MAP interpreter 313.
The MAP information that 313 deciphers of MAP interpreter receive from channel decoder 311 and upgrade information about the resource that can be used for MS.Particularly, according to the present invention, MAP interpreter 313 determines whether MAP information comprises UL control area assignment information, and correspondingly upgrades the UL control area assignment information of storing.When having UL control area assignment information in MAP information, MAP interpreter 313 is updated to new UL control area assignment information with storage UL control area assignment information.When in MAP information, not having UL control area assignment information, the UL control area assignment information that 313 maintenances of MAP interpreter are stored.Comprise in MAP message under the situation of effective duration information, do not receive new UL control area assignment information if expire up to effective duration of being represented by effective duration information, then the MAP interpreter 313 deletions UL control area assignment information of storing yet.Here, the UL control area comprises range channel, CQI channel, ack channel and depth measurement channel.The CQI channel is equivalent to fast feedback channel.
Although not shown, the control signal transmitter is carried out the UL signaling (for example, range finding, CQI, ACK etc.) of BS based on UL control area assignment information.
Fig. 4 is the flow chart that is shown in the operation that is used for generating resource allocation information message among the BS of ofdma communication system according to an exemplary embodiment of the present invention.
With reference to figure 4, in step 401, MAP maker 203 determines whether to generate in time MAP message.If the time generate MAP message, then MAP maker 203 checks DL and UL resource allocation scheduling in step 403.
In step 405, MAP maker 203 compares to determine by the UL control area assignment information that will set in the resource allocation scheduling and the UL control area assignment information that sends recently whether UL control area assignment information changes.As discussed previously, the UL control area comprises range channel, CQI channel, ack channel and depth measurement channel, and the CQI channel is equivalent to fast feedback channel.
If UL control area assignment information changes, then MAP maker 203 is set at 0 in step 407 with variable " m ".Variable m is illustrated in the number that UL control area assignment information changes the frame that does not have the control area assignment information that sends afterwards.
In step 409,203 generations of MAP maker have the MAP message of the UL control area assignment information after the variation.UL control area assignment information can be about all or part of UL control area.
On the other hand, if UL control area assignment information does not change yet, then in step 411, MAP maker 203 determines whether to generate in time UL control area assignment information.Particularly, MAP maker 203 is counted the number that the continuous N AP that does not have UL control area assignment information transmits after the MAP with UL control area assignment information transmits, and described counting and the predetermined amount of time that is used for generation UL control area assignment information are compared.The described time period is the variable that depends on that system arranges.
In step 411, if the time generate UL control area assignment information, then in step 409, MAP maker 203 generates the MAP message with the UL control area assignment information that checks in step 403.
In step 411, in the time of if not generation UL control area assignment information, then MAP maker 203 makes variable m increase by 1 in step 413.If still be not to generate in the assignment information of UL control area after increasing m, then in step 415, MAP maker 203 compares m and variable " N ".N represents to have UL control area assignment information with the number of the successive frame of the reception of guaranteeing amended UL control area assignment information, just, the UL control area assignment information after the variation is to be sent out in N the successive frame that begins to count from the moment when UL control area assignment information has changed.N depends on system's setting.
If m is less than N, then in step 409, MAP maker 203 generates the MAP message with UL control area assignment information.
If m is more than or equal to N, then in step 417, MAP maker 203 generates the MAP message that does not have UL control area assignment information.
Fig. 5 is the flow chart that is shown among the MS of ofdma communication system according to an exemplary embodiment of the present invention for detection of the operation of resource allocation information message.
With reference to figure 5, in step 501, MAP interpreter 313 monitors the reception of MAP message.
In case receive MAP message, then in step 503, MAP interpreter 313 determines whether MAP message comprises UL control area assignment information.The UL control area comprises range channel, CQI channel, ack channel and depth measurement channel, and the CQI channel is equivalent to fast feedback channel.
When having UL control area assignment information, in step 505, MAP interpreter 313 is updated to the UL control area assignment information of storing the UL control area assignment information that receives.
When not having UL control area assignment information, in step 507, the UL control area assignment information that 313 maintenances of MAP interpreter are stored.
Fig. 6 is the flow chart that is shown in the operation that is used for generating resource allocation information message among the BS of the ofdma communication system of another exemplary embodiment according to the present invention.
With reference to figure 6, in step 601, MAP maker 203 determines whether to generate in time MAP message.If the time generate MAP message, then in step 603, MAP maker 203 checks DL and UL resource allocation schedulings.
In step 605, MAP maker 203 compares by the UL control area assignment information that will set in the resource allocation scheduling and the UL control area assignment information that transmits recently, determines whether UL control area assignment information changes.As discussed previously, the UL control area comprises range channel, CQI channel, ack channel and depth measurement channel, and the CQI channel is equivalent to fast feedback channel.
If UL control area assignment information changes, then in step 607, MAP maker 203 generates the effective duration information that is used for UL control area assignment information.Because the UL control area assignment information that transmits is no longer valid after the duration of a time period passes, therefore regularly transmitting under the situation of UL control area assignment information, MAP maker 203 generates effective duration information in order to notify this time period to MS.
In step 609, MAP maker 203 generates the UL control area assignment information that has after the variation and the effective MAP message of duration information.UL control area assignment information can comprise the information about some or all UL control areas.
On the other hand, if do not change yet in step 605UL control area assignment information, then in step 611, MAP maker 203 determines whether to generate in time UL control area assignment information.Particularly, MAP maker 203 is counted the number that the continuous N AP that does not have UL control area assignment information transmits after the MAP with UL control area assignment information transmits, and should count and the described time period compares.The described time period is the variable that depends on that system arranges.
In step 611, in the time of if not generation UL control area assignment information, then in step 613, MAP maker 203 generates the MAP message that does not have UL control area assignment information.
Fig. 7 is the flow chart that is shown among the MS of the ofdma communication system of another exemplary embodiment according to the present invention for detection of the operation of resource allocation information message.
With reference to figure 7, in step 701, MAP interpreter 313 monitors the reception of MAP message.
In case receive MAP message, in step 703, MAP interpreter 313 determines whether MAP message comprises UL control area assignment information.The UL control area comprises range channel, CQI channel, ack channel and depth measurement channel, and the CQI channel is equivalent to fast feedback channel.
When having UL control area assignment information, in step 705, MAP interpreter 313 is updated to the UL control area assignment information of storing the UL control area assignment information that receives.
When not having UL control area assignment information, in step 707, MAP interpreter 313 determines whether to have stored previous UL control area assignment information.
If stored previous UL control area assignment information, then in step 709, MAP maker 313 checks effective duration of the UL control area assignment information of storing.
If UL control area assignment information is still effective, then in step 711, the UL control area assignment information that 313 maintenances of MAP interpreter are stored.
On the contrary, if determine that in step 709 UL control area assignment information is invalid, then in step 713, the UL control area assignment information that 313 deletions of MAP interpreter are stored.Because the UL control area assignment information that its effective duration has passed is not reliably, therefore prevents from using the zone of being represented by this UL control area assignment information by deleting this UL control area assignment information.Except deletion, can in MS, set a sign so that whether indication UL control area assignment information is effective, perhaps MS can check effective duration of UL control area assignment information always.
In step 715, MAP interpreter 313 detects the data burst area information.
In the above embodiment of the present invention, UL control area assignment information is periodically generated and is comprised in the MAP message.Here, UL control area assignment information can be described to whole UL control area or such as the resource of the specific control area of ranging region and distribute.
Proposed the third embodiment of the present invention, in the 3rd embodiment, BS sets effective duration designator for each UL control area during generating MAP information.For example, the connection identifier (CID (CID) that comprises in the UL-MAP information element (UL-MAP_IE) can be used as the effective duration designator at the assignment information that comprises in UL-MAP_IE.For the UL-MAP_IE that the initial ranging area information is provided, BS setting " 0000 " can represent that the initial ranging area information is effective among the CID that comprises in UL-MAP_IE, up to transmitting new initial ranging area information.BS is set at CID " ffff " can represent that the initial ranging area information is only effective in transporting the frame of UL-MAP_IE, just, the CID of UL-MAP_IE can be used to represent effective duration of using in the second embodiment of the present invention, namely, if CID is " 0000 ", then this effective duration lasts till and receives the frame that transports new initial ranging area information.If CID is " ffff ", then effectively the duration is restricted to a frame.
Can predict the fourth embodiment of the present invention, wherein UL control area assignment information is sent out in broadcast.This broadcast is not that each frame is broadcasted.For example, can use illustrated uplink channel descriptor (UCD) message with addition type-length-value (TLV) in the following table 1.
Table 1
[table 1]
| Title | Type (1 byte) | Length | Value |
| Ranging region | 212 | 5/10/15/20 | The value of TLV is grouped into (part of each distance-finding method) by 4 link portions nearly, and each link part has following array structure: position #0-31: comprise the field bit #32-34 identical with the part for UIUC=12 in table 287: be defined in the periodic parameter d position #35-39 in 2^d the frame: the allocated phase of Biao Daing frame by frame |
| Quick feedback areas | 210 | 5 | Position #0-31: comprise and field bit #32-34 identical in the quick feedback allocation IE of table among the 295a: be defined in the periodic parameter d position #35-39 in 2^d the frame: the allocated phase of Biao Daing frame by frame |
| HARQ ACK zone | 211 | 4 | Position #0-23: comprise and field bit #24-26 identical in the HARQ ACKCH region allocation IE of table among the 302t: be defined in the periodic parameter d position #27-31 in 2^d the frame: the allocated phase of Biao Daing frame by frame |
| The depth measurement zone | 213 | 5 | 5 the byte position #0-31 in each depth measurement zone: comprise with PAPR minimizings/place of safety/depth measurement district distribution IE in table 289 in identical following field bit #32-34: be defined in the periodic parameter d position #35-39 in 2^d the frame: the allocated phase of Biao Daing frame by frame |
Broadcast can comprise the assignment information about at least one the UL control area in the middle of many information of listing in the table 1, just, broadcast can comprise about the following assignment information of column region: ranging region (initial ranging zone, switch ranging region, cycle ranging region, bandwidth ranging region etc.), wherein the CQI quick feedback areas of being presented back, the regional and depth measurement zone of transporting the depth measurement signal of the HARQ ACK that presented back of HARQ response signal wherein.The allocated phase that can comprise the starting point of the periodicity in cycle of assignment information element (IE), expression UL control area and indication cycle's property about the assignment information of each UL control area.Periodically be the periodic parameter " d " in 2^d frame of definition, and allocated phase is expressed in table 1 frame by frame.
Fig. 8 is the flow chart that is shown among the MS of the system of broadband wireless communication of the 3rd exemplary embodiment according to the present invention for detection of the operation of resource allocation information message.
With reference to figure 8, in step 801, MAP interpreter 313 determines whether the frame that receives has MAP message.
When having described MAP message, in step 803, whether MAP interpreter 313 is normal by CRC (CRC) verification of this MAP message being determined this MAP receives.
If this MAP message is undesired, then in step 805, MAP interpreter 313 control MS are at this image duration inoperative (inoperative).
If this MAP message is normal, then in step 807, MAP interpreter 313 determines whether UL control area assignment information is present in the MAP message.
When having UL control area assignment information, in step 809, the UL control area assignment information that MAP interpreter 313 usefulness receive is upgraded current UL control area assignment information, and the UL control area assignment information behind step 811 storage update, just, MAP interpreter 313 is updated to new UL control area assignment information with the previous UL control area assignment information of storing.
In step 807, when not having UL control area assignment information, in step 813, MAP interpreter 313 determines whether UCD comprises UL control area assignment information.
When in UCD, having UL control area assignment information, in step 811, MAP interpreter 313 these UL control area assignment information of storage, just, MAP interpreter 313 is updated to new UL control area assignment information with existing UL control area assignment information.
After this UL control area assignment information of storage, in step 815, MAP interpreter 313 obtains the MAP IE for MS.
Be apparent that from top description, the present invention reduces volume of resource allocation information message by periodically being transmitted in the system of broadband wireless communication resource allocation information message in the middle of the resource allocation information message of BS guiding MS, that be associated with the specific region, has advantageously increased the data rate of user data.
Although illustrated and described the present invention with reference to the preferred embodiments of the present invention, but those of ordinary skill in the art will be understood that, wherein can carry out the various variations on form and the details, and not deviate from spirit of the present invention and category by the claims definition.
Claims (21)
1. the method for operation of the base station (BS) in the wireless communication system comprising:
Generation comprises the broadcast of up link control area assignment information, and described up link control area assignment information is the resource allocation information about the up link control area; With
Periodically broadcast described broadcast,
Wherein, described up link control area assignment information comprises the allocated phase information that assignment information element, periodical information and indication cycle's property begin.
2. method of operation as claimed in claim 1, wherein, described broadcast is uplink channel descriptor (UCD) message.
3. method of operation as claimed in claim 1, wherein, described up link control area comprises ranging region, feedback areas, mixed automatic repeat request (HARQ) are really received at least one in (ACK) zone and the depth measurement zone fast.
4. method of operation as claimed in claim 1, wherein, the step of the described broadcast of described periodic broadcast comprises:
Encode described broadcast and outputting encoded data;
Modulate described coded data and output modulation data;
Described modulating data is mapped to predetermined resource;
By contrary fast fourier transform (IFFT) mapping (enum) data is converted to baseband signal; With
Baseband signal is up-converted to radio frequency (RF) signal and sends this RF signal.
5. the method for operation of the mobile radio station (MS) in the wireless communication system comprising:
Periodically receive broadcast; With
Obtain up link control area assignment information by the described broadcast of decipher, described up link control area assignment information is the resource allocation information about the up link control area,
Wherein, described up link control area assignment information comprises the allocated phase information that assignment information element, periodical information and indication cycle's property begin.
6. method of operation as claimed in claim 5, wherein, described broadcast is uplink channel descriptor (UCD) message.
7. method of operation as claimed in claim 5, wherein, described up link control area comprises ranging region, feedback areas, mixed automatic repeat request (HARQ) are really received at least one in (ACK) zone and the depth measurement zone fast.
8. method of operation as claimed in claim 5 also comprises:
Determine whether the MAP that receives comprises the up link control area assignment information identical with the up link control area assignment information that comprises in described broadcast in transporting the frame of described broadcast; With
In the up link control area assignment information of selecting to comprise in the up link control area assignment information that comprises among the described MAP and the described broadcast according to priority one.
9. method of operation as claimed in claim 5, wherein, the described step that periodically receives broadcast comprises:
To down-convert to baseband signal by radio frequency (RF) signal that antenna receives;
By fast Fourier transform (FFT) baseband signal is converted to frequency data;
The data that broadcast in the frequency data are mapped to it are carried out demodulation; With
By demodulating data being decoded to generate described broadcast.
10. the device of the base station (BS) in the wireless communication system comprising:
Maker is used for generating the broadcast that comprises up link control area assignment information, and described up link control area assignment information is the resource allocation information about the up link control area; With
Transmitter is used for periodically broadcasting described broadcast,
Wherein, described up link control area assignment information comprises the allocated phase information that assignment information element, periodical information and indication cycle's property begin.
11. device as claimed in claim 10, wherein, described broadcast is uplink channel descriptor (UCD) message.
12. device as claimed in claim 10, wherein, described up link control area comprises ranging region, feedback areas, mixed automatic repeat request (HARQ) are really received at least one in (ACK) zone and the depth measurement zone fast.
13. device as claimed in claim 10, wherein, described transmitter comprises:
Encoder is used for the described broadcast of coding and outputting encoded data;
Modulator is used for modulation encoded data and output modulation data;
Mapper is used for modulating data is mapped to predetermined resource;
OFDM (OFDM) modulator is used for by contrary fast fourier transform (IFFT) mapping (enum) data being converted to baseband signal; With
Radio frequency (RF) transmitter is used for baseband signal is up-converted to the RF signal, and sends this RF signal.
14. the device of the mobile radio station (MS) in the wireless communication system comprising:
Receiver is used for periodically receiving broadcast; With
Interpreter is used for obtaining up link control area assignment information by the described broadcast of decipher, and described up link control area assignment information is the assignment information about the up link control area,
Wherein, described up link control area assignment information comprises the allocated phase information that assignment information element, periodical information and indication cycle's property begin.
15. device as claimed in claim 14, wherein, described broadcast is uplink channel descriptor (UCD) message.
16. device as claimed in claim 14, wherein, described up link control area comprises ranging region, feedback areas, mixed automatic repeat request (HARQ) are really received at least one in (ACK) zone and the depth measurement zone fast.
17. device as claimed in claim 14, wherein, if the MAP that receives in transporting the frame of described broadcast comprises identical up link control area assignment information, in the described interpreter up link control area assignment information selecting to comprise in the up link control area assignment information that comprises among the described MAP and the described broadcast according to priority then.
18. device as claimed in claim 14 also comprises transmitter, is used for carrying out uplink signalling according to described up link control area assignment information.
19. device as claimed in claim 14, wherein, described receiver comprises:
Radio frequency (RF) receiver is used for and will down-converts to baseband signal by the RF signal that antenna receives;
OFDM (OFDMA) demodulator is used for by fast Fourier transform (FFT) baseband signal being converted to frequency data;
Demodulator carries out demodulation for the data that the frequency data broadcast are mapped to it; With
Decoder is used for by demodulating data being decoded to generate described broadcast.
20. the method for operation of the base station (BS) in the wireless communication system comprising:
Generation comprises that about the uplink channel descriptor of the resource allocation information of up link control area (UCD) message described up link control area comprises ranging region, quick feedback areas, mixed automatic repeat request (HARQ) zone and depth measurement zone; With
Described UCD message is broadcast to mobile radio station (MS),
Wherein, about described ranging region, fast the resource allocation information of each in feedback areas, HARQ zone and the depth measurement zone comprises the periodic parameter d of indication in 2^d frame and the allocated phase that uses the number expression of frame.
21. the method for operation of the mobile radio station (MS) in the wireless communication system comprising:
Reception is by uplink channel descriptor (UCD) message of base station (BS) broadcasting; With
Obtain the resource allocation information about the up link control area from described UCD message, described up link control area comprises ranging region, quick feedback areas, mixed automatic repeat request (HARQ) zone and depth measurement zone,
Wherein, about described ranging region, fast the resource allocation information of each in feedback areas, HARQ zone and the depth measurement zone comprises the periodic parameter d of indication in 2^d frame and the allocated phase that uses the number expression of frame.
Applications Claiming Priority (7)
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| KR10-2006-0066545 | 2006-07-14 | ||
| KR1020060066545 | 2006-07-14 | ||
| KR1020060066545A KR100941052B1 (en) | 2006-07-07 | 2006-07-14 | Apparatus and method for decreasing of the volume of channel allocation information massage in wideband wireless communication system |
| PCT/KR2007/003305 WO2008004845A1 (en) | 2006-07-07 | 2007-07-06 | Apparatus and method for reducing volume of resource allocation information message in a broadband wireless communication system |
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| CN101490979A CN101490979A (en) | 2009-07-22 |
| CN101490979B true CN101490979B (en) | 2013-09-04 |
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| KR20090030562A (en) | 2007-09-20 | 2009-03-25 | 엘지전자 주식회사 | Method of packet transmission for resource allocation in broadband wireless access system |
| KR101481034B1 (en) * | 2008-02-14 | 2015-01-15 | 삼성전자주식회사 | Apparatus and method for signalling frame configuration information in wireless communication system |
| KR20100008322A (en) | 2008-07-15 | 2010-01-25 | 엘지전자 주식회사 | Method for bandwidth request with a message in variable formats |
| KR101627163B1 (en) * | 2009-01-28 | 2016-06-03 | 삼성전자주식회사 | Apparatus and method for transmitting information through uplink control channel in communication system based on ofdma |
| US8560696B2 (en) * | 2009-04-28 | 2013-10-15 | Intel Corporation | Transmission of advanced-MAP information elements in mobile networks |
| US8982813B2 (en) | 2009-06-03 | 2015-03-17 | Lg Electronics Inc. | Method and apparatus for transmitting sounding reference signal |
| WO2013125930A1 (en) * | 2012-02-26 | 2013-08-29 | 엘지전자 주식회사 | Method for transmitting uplink data information in a wireless communication system and apparatus therefor |
| EP3132554B1 (en) * | 2014-05-08 | 2018-02-21 | Huawei Technologies Co., Ltd. | Network device for joint decoding and method thereof |
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| KR101009788B1 (en) | 2005-03-09 | 2011-01-19 | 삼성전자주식회사 | System and methdo for performing a ranging in a communication system |
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Also Published As
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| MY154511A (en) | 2015-06-30 |
| AU2007270156A1 (en) | 2008-01-10 |
| JP5008724B2 (en) | 2012-08-22 |
| RU2009104064A (en) | 2010-08-20 |
| CN101490979A (en) | 2009-07-22 |
| CA2655714A1 (en) | 2008-01-10 |
| BRPI0713858B1 (en) | 2019-12-03 |
| JP5249448B2 (en) | 2013-07-31 |
| MY156686A (en) | 2016-03-15 |
| RU2413366C2 (en) | 2011-02-27 |
| KR20080005036A (en) | 2008-01-10 |
| CA2655714C (en) | 2014-05-13 |
| AU2007270156B2 (en) | 2010-10-21 |
| KR100941052B1 (en) | 2010-02-05 |
| JP2009543429A (en) | 2009-12-03 |
| JP2012170152A (en) | 2012-09-06 |
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