TWI403128B - Method,apparatus,computer readable medium,and processor for localized and distributed allocation multiplexing and control - Google Patents

Description

Method, apparatus, computer readable medium, and processor for localized and distributed distribution multiplexing and control

The following description relates generally to wireless communications and, more specifically, to a multiplexed multi-work mechanism that can support localized and decentralized allocation.

Wireless communication systems have become a common means for most people in the world to communicate. In order to meet consumer needs, improve portability and convenience, wireless communication devices have become smaller and more powerful. The increased processing power of mobile devices such as cellular phones has led to an increase in demand for wireless network transmission systems.

A typical wireless communication network (eg, employing frequency division, time division, and code division techniques) includes providing one or more base stations of a coverage area and one or more actions for transmitting and receiving data within the coverage area ( For example, wireless) terminal. A typical base station can simultaneously transmit multiple data streams for broadcast, multicast, and/or unicast services, where the data stream is a stream that can be correlated with the independently received data of the mobile terminal. An mobile terminal within the coverage area of the base station may be dedicated to receiving one, more than one or all of the data streams carried by the composite stream. Similarly, an mobile terminal can transmit data to a base station or another mobile terminal.

For downlink transmissions, localized (eg, piece-by-segment) transmissions or decentralized (eg, scatter-type) transmissions may be employed. Localized transmission is advantageous because it allows for frequency selective scheduling. Distributed transmission, on the other hand, utilizes frequency diversity and is suitable for high speed users. There is a need to optimize the type of transmission used, while also allowing for a reduction in the number of bits transmitted during downlink transmission.

A brief summary of one or more aspects is presented below to provide a basic understanding of the aspects. This summary is not an extensive overview of all aspects of the invention, and is intended to neither identify a The sole purpose is to present some concepts of one or more aspects in a

According to one aspect, a method of communication includes: receiving information regarding the capabilities of the access terminal; and based on the capabilities, multiplexing the localized and distributed transmissions to the access terminal.

In another aspect, a device includes: a memory for storing information; a processor that executes instructions; and an optimization component that receives information about access terminal capabilities and based on the The ability to multiplex and localize and decentralize transmission to the access terminal.

According to another aspect, a computer readable medium has stored thereon computer executable instructions for performing the following actions: receiving information about access terminal capabilities; and localizing based on the capabilities And decentralized transmission multiplexing to the access terminal.

In another aspect, a processor has stored thereon computer executable instructions for performing the following actions: receiving information about access terminal capabilities; and based on the capabilities, localizing and Decentralized transmission multiplexing to access terminals.

In yet another aspect, a system includes: means for receiving information regarding access to the capabilities of the terminal; and means for multiplexing the localized and distributed transmissions to the access terminal based on the capabilities.

To the accomplishment of the foregoing and related ends, the <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The following description and the annexed drawings are set forth in < However, such aspects are indicative of only a few of the various methods of the various embodiments of the various embodiments, and are intended to include all such aspects and their equivalents.

Various embodiments are described with reference to the drawings, in which like reference numerals are used to refer to the like. In the following description, numerous specific details are set forth However, it is obvious that the embodiment can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

As used in this application, the terms "component," "module," "system," and the like, are intended to refer to a computer-related entity that is a combination of hardware, firmware, hardware, and software, software. Or software in execution. For example, a component can be, but is not limited to being, a program executed on a processor, a processor, an object, an executable, an execution thread, a program, and/or a computer. By way of illustration, an application executing on a computing device and the computing device can be a component. One or more components can reside in a program and/or a thread of execution, and a component can be located on a computer and/or distributed between two or more computers. In addition, such components can be executed from a variety of computer readable media having various data structures stored thereon. The components can communicate via regional and/or remote programs, such as according to a signal having one or more data packets (eg, data from a component that is localized, distributed by signal) The system interacts with another component and/or interacts with other systems across a network such as the Internet.

Moreover, various embodiments are described herein in connection with a mobile device. The mobile device may also be referred to as a system, a subscriber unit, a subscriber station mobile station, a mobile remote station, a remote terminal, an access terminal, a user terminal, a terminal, a wireless communication device, a user agent, and a user. Device or User Equipment (UE). A mobile device can be a cellular telephone, a wireless telephone, a Session Initiation Protocol (SIP) telephone, a wireless area loop (WLL) station, a personal digital assistant (PDA), a wireless connection capable handheld device, a computing device, or a connection to Other processing devices for wireless data sets. Moreover, various embodiments are described herein in connection with a base station. A base station can be used to communicate with mobile devices and can also be referred to as an access point, Node B, or some other terminology.

Moreover, the various aspects or features described herein can be implemented as a method, apparatus, or article of manufacture using standard stylized and/or engineering techniques. As used herein, the term "article of manufacture" is intended to include a computer program accessible from any computer-readable device, carrier, or media. By way of example, computer readable media may include, but are not limited to, magnetic storage devices (eg, hard disks, floppy disks, magnetic strips, etc.), optical disks (eg, compact discs (CD), digital versatile discs (DVD) Etc.), smart cards and flash memory devices (eg EPROM, cards, sticks, key drivers, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

Referring now to Figure 1, a system 100 for implementing optimal downlink transmissions in a wireless communication environment is illustrated in accordance with various embodiments herein. Base station 102 is configured to communicate with one or more mobile devices 104. Base station 102 includes a multiplex optimization component 106 that allows for localized and decentralized transmission, and a receiving component 108 that receives, for example, information about base station capabilities. As discussed below, the optimization component 106 allows downlink transmissions such that frequency diversity is achieved and the additional item cost associated with the transmission is reduced via various mechanisms. As can be appreciated, the multiplex of localized and decentralized transmissions allows for adaptation to various messaging services, user capabilities, and further allows users of one or more mobile devices 104 to utilize channel characteristics. Moreover, for example, the or the mobile device 104 can provide information about the capabilities of the mobile device, an estimate of downlink channel conditions, and user profile to the optimization component 106 at the base station 102. It should also be appreciated that the base station 102 can determine the percentage of high speed users and low speed users, and store user information and information about the capabilities of the mobile device. These capabilities of the base station 102 may further allow the optimization component 106 to select the optimal multiplex mechanism based on ambient conditions.

Referring now to Figure 2, a mechanism for optimizing downlink transmissions via multiplexing of localized and distributed transmissions is illustrated. At 202, a frequency band divided into three fixed localized sub-bands is shown. It should be appreciated that the foregoing examples are illustrative in nature and are not intended to limit the number of localized sub-bands that can be made by the various embodiments and/or methods described herein. At 204, three localized sub-bands as previously discussed are shown after the decentralized allocation of subcarriers has occurred. More specifically, distributed allocation is performed between subcarriers 206 in the localized subband 204 as necessary.

With further reference to FIG. 2, the illustrated multiplex mechanism provides the most information by notifying all scheduled users of their subcarrier allocations in addition to allocating a portion of the resources allocated to the distributed allocation user to the scheduled user. Optimized frequency diversity. In the embodiment illustrated in Figure 2, the number of localized sub-bands constituting the frequency band remains constant regardless of the number of distributed allocations present.

Referring now to Figure 3, a multiplex mechanism 300 is illustrated. As an example, three localized sub-bands 302 are shown prior to the decentralized allocation of resources in the localized sub-bands. In this embodiment, multiplexing is accomplished by reducing the number of localized sub-bands 304 in the entire frequency band rather than reducing the number of sub-carriers 306 as the distributed allocation of resources increases. In this manner, the additional item cost associated with the uplink is reduced due to the reduction in localized sub-bands 304. It will be appreciated that as the distributed allocation of resources increases, the number of localized sub-bands 304 decreases while the number of sub-carriers 306 in the localized sub-bands remains or remains within a certain range. It will also be appreciated that the width of the frequency band occupied by each localized sub-band may increase due to the increased puncturing due to the localized sub-bands 304 of the decentralized allocation. Therefore, the frequency selectivity of the localized sub-band 304 can be reduced.

With further reference to FIG. 3, information regarding the boundaries between the localized subbands 304 and the spacing between the dispersed subcarriers must be communicated to all scheduled uses. By. The specific resource allocation is to be sent to the control channel of each scheduled user and should include the sub-band identifier, the starting point and spacing for the distributed user, or the starting point and location for the localized user. The number of tones. It will be appreciated that depending on the type of sub-band identification (ID) assigned, each scheduled user will know whether the transmission will be localized, decentralized, or multiplexed signals for localized and decentralized transmissions. . Therefore, the scheduled user will have an understanding of the interpretation of an associated control channel.

Referring to Figure 4, one of the multiplex mechanisms 400 in a wireless communication environment is illustrated. Band 402 is divided into localized sub-bands 404. In this embodiment, the pitch of the punctured distributed distribution 408 is specified for each localized sub-band 406. As a result, the subcarriers can be punctured non-uniformly within the localized subband 406. Additionally, one or more localized sub-bands 406 may be decentralized, and this reduction therefore requires the number of sub-bands 406 for uplink quality feedback. Moreover, as indicated above with reference to Figure 3, a particular resource allocation is uploaded to the control channel of each scheduled user. It should be appreciated that the distributed allocation is non-uniformly dispersed across the localized sub-band 406. For example, multiplex mechanism 400 can include a fully dispersed localized sub-band, while surrounding localized sub-bands are localized by decentralized puncture of resources. While the multiplex mechanism 400 provides for the spreading of the localized sub-band 406 to remain constant, the number of sub-carriers within the localized sub-band 406 may be reduced due to the puncture of the distributed allocation.

With respect to the multiplex mechanisms 300 and 400 illustrated in Figures 3 and 4, respectively, when the decentralized allocation is significant, it is possible to reduce the number of localized sub-bands, and thus achieve channel quality addition reductions during the uplink. As an example, if there are four localized sub-bands and the number of designated bits of the channel quality of the sub-band is eight, then in the case where the number of localized sub-bands is reduced to two, only five bits will be needed. To indicate its channel quality (for example, MCS index). On the other hand, if a bandwidth addition reduction is required instead of a power reduction, an additional three bits can be used to improve the elaboration of channel quality feedback.

Referring to Figures 5-7, a method for multiplexed localized transmission and distributed transmission is illustrated. Although the methods are shown and described as a series of acts for the purpose of simplifying the explanation, it should be understood and appreciated that the methods are not limited by the order of the acts, as some acts may occur in different orders and/or in accordance with the present invention. Or coincide with other actions from the actions shown and described herein. For example, those skilled in the art will understand and appreciate that a method (such as in a state diagram) may alternatively be represented as a series of related states or events. Moreover, not all illustrated acts may be required to implement a method in accordance with the present invention.

Referring specifically to FIG. 5, a method 500 of facilitating a multiplex downlink transmission in a wireless communication system is illustrated. The method begins at 502, and at 504, a determination is made as to whether a multiplex transmission requiring localized transmission and distributed transmission is required. For example, this determination can be made based on traffic services, user capabilities, and channel characteristics. If no multiplex is required, the method proceeds to 506. At 506, one of the localized transmission and the decentralized transmission is used for downlink transmission. If a multiplex transmission is required, the method proceeds to 508 where the frequency band is divided into a fixed number of localized sub-bands. At 510, a decentralized allocation of resources is allowed in each localized sub-band. At 512, each scheduled user is notified of its resource allocation, and at 514, the scheduled user receives a signal indicating a portion of the localized sub-band allocated to the distributed user.

Referring now to Figure 6, an example method 600 for facilitating a multiplex downlink transmission in a wireless communication system is illustrated. The method begins at 602, and at 604, a determination is made as to whether a multiplex transmission requiring localized transmission and distributed transmission is required. This determination can be made, for example, based on traffic services, user capabilities, and channel characteristics. If no multiplex is required, the method proceeds to 606. At 606, one of the localized transmission and the decentralized transmission is used for downlink transmission. If a multiplex transmission is required, the method proceeds to 608 where the frequency band is divided into a fixed number of localized sub-bands. At 610, a constant distributed allocation of subcarriers in each localized subband is maintained. At 612, a reduction in uplink add-on for sub-band quality reporting is achieved upon occurrence of an increase in the puncture of the decentralized resources in the localized sub-band. This reduction in uplink add-on occurs due to a corresponding decrease in the number of localized sub-bands due to puncture of the decentralized resources. At 614, each of the scheduled users is notified of their resource allocation, and at 616, the scheduled user receives a signal indicating a portion of the localized sub-band allocated to the distributed user.

Referring now to Figure 7, a method 700 for facilitating a multiplex downlink transmission in a wireless communication system is illustrated. The method begins at 702, and at 704, a determination is made as to whether a multiplex transmission of localized transmission and distributed transmission is required. This determination can be made, for example, based on traffic services, user capabilities, and channel characteristics. If no multiplex is required, the method proceeds to 706. At 706, one of the localized transmission and the decentralized transmission is used for downlink transmission. If a multiplex transmission is required, the method proceeds to 708 where the frequency band is divided into a fixed number of localized sub-bands. At 710, the pitch of the decentralized distribution of non-uniform punctures in each localized sub-band is specified. At 712, the number of localized subbands in the frequency band is reduced by converting a number of localized subbands into decentralized resources. As a result, the channel quality addition of the uplink is reduced. At 714, each scheduled user is notified of their resource allocation, and at 716, the scheduled user receives a signal indicating a portion of the localized sub-band allocated to the distributed user.

Referring now to Figure 8, a wireless communication system 800 is illustrated in accordance with various embodiments presented herein. System 800 can include one or more base stations 802 (e.g., access points) in one or more sectors that receive, transmit, repeat (etc.) wireless communication signals and/or wirelessly communicate with each other. The signals are received, transmitted, repeated (and the like) to one or more mobile devices 804. As known to those skilled in the art, each base station 802 can include a transmitter chain and a receiver chain. Each of the transmitter chain and the receiver chain can further include a plurality of signals associated with signal transmission and reception. Components (eg, processor, modulator, multiplexer, demodulation transformer, demultiplexer, antenna, ...). Mobile device 804 can be, for example, a cellular telephone, a smart phone, a laptop, a palm-sized communication device, a palm-sized computing device, a satellite broadcast, a global positioning system, a PDA, and/or for communicating via wireless communication system 800 Any other suitable device.

Base station 802 can broadcast content to mobile device 804 by employing forward link dedicated (FLO) technology. For example, it can broadcast instant audio and/or video signals, as well as non-instant services (eg, music, weather, news digests, traffic, financial information, ...). According to an example, content can be broadcast to mobile device 804 by base station 802. Mobile device 804 can receive and output the content (eg, by employing video output, audio output, ...). In addition, FLO technology can use orthogonal frequency division multiplexing (OFDM). A frequency division based technique such as OFDM typically divides the spectrum into different channels, for example, the spectrum can be divided into a large number of uniform bandwidths. OFDM actually divides the total system bandwidth into multiple orthogonal channels. Additionally, the OFDM system can use time sharing and/or frequency division multiplexing to achieve orthogonality between multiple data transmissions of multiple base stations 802.

In the FLO system, it is desirable to ensure that the mobile device 804 properly receives the information provided by the base station 802. To this end, and as described in more detail below, the FLO Test Application Protocol (FTAP) can be used to verify the physical layer of system 800. In other words, the FTAP can be used to ensure that the mobile device 804 properly receives data from the base station 802. A collection of FTAP definition programs that can be used for minimum performance testing of devices when implemented by a network and mobile device 804. To this end, FTAP streams (a series of FTAP packets) can be configured and launched in a network to test specific device behavior. According to an example, each FTAP packet can carry information such as test sequence numbers, test signatures, and test data patterns. The serial number can be a 32-bit integer derived from a 32-bit counter, wherein the counter can be initialized to any suitable value. However, it should be understood that the serial number can be any suitable number of bits and the counter can be any suitable number of bits of the counter. The test signature can be a circular buffer derived from a bit generated by using a specific polynomial (such as p ( x ) = x ^{1 5} + x +1) and a 15-state simple shift register generator (SSRG). The octet pseudorandom integer of the device. However, the polynomial and the simple shift register generator may be different, and it should be understood that suitable deviations from the SSRG and the polynomial are contemplated and are intended to be within the scope of the appended claims.

Verification of the FTAP compliant data may be performed on the mobile device 804. For example, if the test data is generated using a well-known algorithm, the mobile device 804 can implement a substantially similar algorithm to verify that the received data is correct. The verification performed on the mobile device is fairly straightforward and enables instant reporting (eg, mobile device 804 can report an error via a 1x link or any other suitable link). In order to achieve this verification, mobile device 804 should be aware of the state of the FTAP stream. In addition, device 804 should take into account the wiping or loss of coverage and wraparound.

Referring now to Figure 9, a system 900 for facilitating optimal downlink transmission is illustrated. System 900 can include a module 902 for receiving information regarding access terminal capabilities. In particular, for example, system 900 can accommodate a variety of messaging services, user capabilities, and further allow users of one or more mobile devices to utilize channel characteristics. System 900 can also include a module 904 for multiplexing localized and distributed transmissions to an access terminal based on terminal capabilities. Module 904 can select an optimal multiplex mechanism based on terminal capabilities at a given time.

10 is an illustration of a terminal or user device 1000 that provides for other sector communications in a wireless communication environment in accordance with one or more aspects set forth herein. The terminal 1000 includes a receiver 1002 (e.g., one or more receiving antennas), and the receiver 1002 receives a signal and performs typical actions (e.g., screening, amplification, down conversion, etc.) on the received signal and will The modulated signal is digitized to obtain a sample. A demodulation transformer 1004 can demodulate the samples and provide the received pilot symbols to the processor 1006.

The processor 1006 can be a processor dedicated to analyzing information received by the receiver component 1002 and/or generating information for transmission by the transmitter 1014. The processor 1006 can be a processor that controls one or more components of the terminal 1000, and/or analyzes information received by the receiver 1002, generates information for transmission by the transmitter 1014, and controls one or more of the terminal 1000. The processor of the component. The processor 1006 can use any of the methods described herein including the methods described with reference to Figures 5-7.

Additionally, terminal 1000 can include a transmission control component 1008 that analyzes the received input, including an acknowledgment of successful transmission. An acknowledgment (ACK) can be received from the servo sector and/or neighboring sectors. The acknowledgment may indicate that the previous transmission has been successfully received and decoded by one of the access points. If no acknowledgment is received, or if a negative (NAK) is received, the transmission can be resent. Transmission control component 1008 can be incorporated in processor 1006. It should be appreciated that transmission control component 1008 can include a transmission control code that performs an analysis related to receipt of a determination confirmation.

The terminal 1000 can additionally include a memory 1010 operatively coupled to the processor 1006 and can store information related to the transmission, an effective set of sectors, a method of controlling transmission, and a lookup table containing information related thereto. And any other suitable information and valid set sectors associated with the transmission as described herein. It should be understood that the data storage (eg, memory) components described herein can be volatile memory or non-volatile memory, or can include volatile memory and non-volatile memory. By way of illustration and not limitation, non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electronically programmable ROM (EPROM), electronic erasable ROM (EEPROM), or flash memory. . Volatile memory can include random access memory (RAM) that acts as external cache memory. By way of illustration and not limitation, RAM can be used in many forms, such as synchronous RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), Synchronous link DRAM (SLDRAM) and direct Rambus RAM (direct Rambus RAM; DRRAM). The memory 1010 of the system and method of the present invention is intended to comprise, but is not limited to, such and any other suitable type of memory. The processor 1006 is coupled to a symbol modulator 1012 and a transmitter 1014 that transmits the modulated signal.

11 is an illustration of a system 1100 that facilitates communication of other sectors in a communication environment in accordance with various aspects. System 1100 includes an access point 1102 having a receiver 1110 that receives signals from one or more terminal sets 1104 via one or more receive antennas 1106 and transmits signals to one via a plurality of transmit antennas 1108 Or a plurality of terminals 1104. The terminal 1104 can include such terminals supported by the access point 1102, and a terminal 1104 supported by adjacent sectors. In one or more aspects, receive antenna 1106 and transmit antenna 1108 can be implemented using a single set of antennas. Receiver 1110 can be operatively associated with receive antenna 1106 and operatively associated with a demodulation transformer 1112 that receives information from a demodulation transformer. As is known to those skilled in the art, the receiver 1110 can be, for example, a type of receiver (e.g., a technique that uses a plurality of fundamental frequency correlators to individually process multiple signal components, ...), An MMSE based receiver, or may be some other suitable receiver for dropping the terminal to which it is assigned. According to various aspects, multiple receivers (e.g., each receiving antenna-receiver) can be employed, and such receivers can communicate with one another to provide an improved estimate of the user data. The demodulated symbols are analyzed by a processor 1114, which is similar to the processor described above with reference to FIG. 10 and coupled to a memory 1116 that stores information related to the terminal. Assigned resources associated with the terminal and their analogs. The receiver output of each antenna can be processed jointly by receiver 1110 and/or processor 1114. A modulator 1118 can multiplex the signal for transmission by the transmitter 1120 to the terminal 1104 via the transmit antenna 1108.

Access point 1102 further includes a terminal communication component 1122, which can be a processor other than processor 1114 or an integral part of processor 1114. The terminal communication component 1122 can obtain resource assignment information for terminals supported by adjacent sectors. Additionally, the terminal communication component 1122 can provide assignment information to neighboring sectors of the terminal supported by the access point 1102. Assignment information can be provided via a backhaul message.

Based on information regarding the assigned resources, the terminal communication component 1122 can direct the detection of transmissions from terminals supported by neighboring sectors and the decoding of the received transmissions. The memory 1116 can maintain the packet received from the terminal before receiving the assignment information required to decode the packet. The terminal communication component 1122 can also control the transmission and reception of acknowledgments indicating successful reception and decoding of the transmission. It should be appreciated that the terminal communication component 1122 can include a transmission analysis code that performs utility-based control in conjunction with assigning resources, identifying terminals for soft handover, decoding transmissions, and the like. The terminal intelligence analysis code may utilize an artificial intelligence based approach in conjunction with performing inferences and/or probabilistic decisions and/or statistically based decisions regarding the optimization of terminal performance.

FIG. 12 shows an exemplary wireless communication system 1200. For the sake of brevity, the wireless communication system 1000 describes a terminal and two access points. However, it should be appreciated that a system can include one or more access points and/or more than one terminal, wherein the additional access points and/or terminals can be substantially similar or different than the exemplary accesses described below. Point and terminal. In addition, it should be understood that the access point and/or terminal can employ the systems (Figs. 1-4 and 8-11) and/or methods (Figs. 5-7) described herein.

12 shows a block diagram of a terminal 1204, a servo access point 1202X of a support terminal 1024, and a neighbor access point 1202Y in a multiple access multi-carrier communication system 1200. At access point 1202X, a transmit (TX) data processor 1214 receives the traffic data (ie, information bits) from the data source 1212 and receives the signaling and other information from the controller 1220 and the scheduler 1230. For example, scheduler 1230 can provide an assignment of a carrier for the terminal. Additionally, a memory 1222 can maintain information about current or previous assignments. TX data processor 1214 encodes and modulates the received data using multi-carrier modulation (eg, OFDM) to provide modulated data (eg, OFDM symbols). A transmitter unit (TMTR) 1216 then processes the modulated data to produce a downlink modulated signal that is then transmitted from antenna 1218.

The scheduler can provide the assignment information to the access point 1202Y before transmitting the assignment information to the terminal 1204. Assignment information may be provided via a backhaul signaling (eg, T1 line) 1210. Alternatively, the assignment information may be provided to access point 1202Y after transmission to terminal 1204.

At terminal 1204, the transmitted and modulated signal is received by antenna 1252 and provided to a receiver unit (RCVR) 1254. Receiver unit 1254 processes and digitizes the received signals to provide samples. A receive (RX) data processor 1256 then demodulates and decodes the samples to provide decoded data, which may include recovered message data, messages, messages, and the like. The traffic data can be provided to a data collector 1258 and the carrier assignment information of the terminal 1204 can be provided to a controller 1260.

The controller 1260 directs the use of data transmissions on the uplink that have been assigned to the terminal 1204 and indicated to the particular carrier in the received carrier assignment. A memory 1262 can maintain information about the assigned resources (eg, frequency, time, and/or code) and other related information.

For the terminal 1204, a TX data processor 1274 receives the traffic data from a data source 1272 and receives the signaling and other information from the controller 1260. The various types of data are encoded and modulated by the TX data processor 1274 using the assigned carrier and further processed by the transmitter unit 1276 to produce an uplink modulated signal that is then transmitted from the antenna 1252.

At access points 1202X and 1202Y, the transmitted and modulated signals from terminal 1204 are received by antenna 1218, processed by a receiver unit 1232, and demodulated and decoded by an RX data processor 1234. . The transmitted signal can be decoded based on the assignment information generated by the servo access point 1202X and provided to the neighboring access point 1202Y. In addition, access points 1202X and 1202Y can generate an acknowledgment (ACK) that can be provided to other access points (1202X or 1202Y) and/or to terminal device 1204. The decoded signal can be provided to data store 1236. Receiver unit 1232 can estimate the quality of the received signal (e.g., received signal to noise ratio (SNR)) for each terminal and provide this information to controller 1220. The RX data processor 1234 provides the restored feedback information for each terminal to the controller 1220 and the scheduler 1230.

Scheduler 1230 uses feedback information to perform a number of functions, such as (1) selecting a set of terminals for data transmission on the reverse link and (2) assigning a carrier to the selected terminal. The carrier assignments of the scheduled terminals are then transmitted to the terminals on the forward link.

The techniques described herein can be implemented by a variety of methods. For example, such techniques can be implemented in hardware, software, or a combination thereof. For a hardware implementation, processing units for such techniques (eg, controllers 1220 and 1260, TX and RX processors 1214 and 1234, etc.) may be implemented in one or more special application integrated circuits (ASICs) , digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, designed Other electronic units that perform the functions described herein, or a combination thereof.

For a software implementation, modules (eg, procedures, functions, etc.) that can perform the functions described herein can implement the techniques described herein. The software code can be stored in the memory unit and executed by the processor. The memory unit can be implemented within the processor or external to the processor, in which case the memory unit can be communicatively coupled to the processor via various methods known in the art.

What has been described above includes examples of one or more aspects. Of course, it is not possible to describe every conceivable combination of components or methods for describing the foregoing aspects, but one of ordinary skill in the art will recognize that many further combinations and permutations of various aspects are possible. Accordingly, the described aspects are intended to embrace all such changes, modifications and variations in the scope of the invention. In addition, the term "comprising" is used in the context of the "embodiment" or the scope of the patent application, and the term is intended to be similar to the meaning of the term "contains" ("includes" when used as a transitional word in a claim. The way is to be sexual.

100. . . system

102. . . Base station

106. . . Optimized component

108. . . Receiving component

202. . . frequency band

204. . . Localized subband

300. . . Multiplex mechanism

302. . . Localized subband

304. . . Localized subband

306. . . Subcarrier

400. . . Multiplex mechanism

402. . . frequency band

404. . . Localized subband

406. . . Localized subband

408. . . Decentralized distribution of puncture

800. . . Wireless communication system

802. . . Base station

804. . . Mobile device

900. . . system

902. . . Module

904. . . Module

1000. . . Terminal/user device

1002. . . receiver

1004. . . Demodulation transformer

1006. . . processor

1008. . . Transmission control component

1010. . . Memory

1012. . . Symbol modulator

1014. . . Transmitter

1100. . . system

1102. . . Access point

1104. . . Terminal

1106. . . Receive antenna

1108. . . Transmission antenna

1110. . . receiver

1112. . . Demodulation transformer

1114. . . processor

1116. . . Memory

1118. . . Modulator

1120. . . Transmitter

1122. . . Terminal communication component

1200. . . Wireless communication system/multiple access multicarrier communication system

1202. . . X servo access point

1202. . . Y proximity access point

1204. . . Terminal

1210. . . Return letter

1212. . . Data source

1214. . . Transmission data processor

1216. . . Transmitter unit

1218. . . antenna

1220. . . Controller

1222. . . Memory

1230. . . Scheduler

1232. . . Receiver unit

1234. . . Receiving data processor

1236. . . Data collector

1252. . . antenna

1254. . . Receiver unit

1256. . . Receiving data processor

1258. . . Data collector

1260. . . Controller

1262. . . Memory

1272. . . Data source

1274. . . Transmission data processor

1276. . . Transmitter unit

1 is an illustration of an example system that implements optimal downlink transmissions in a wireless communication environment.

2 is an illustration of an example transport mechanism in a wireless communication environment.

3 is another illustration of an example transmission mechanism in a wireless communication environment.

4 is another illustration of an example mechanism in a wireless communication environment.

5 is an illustration of an example method of facilitating a multiplex downlink transmission in a wireless communication system.

6 is another illustration of an example method of facilitating a multiplex downlink transmission in a wireless communication system.

7 is another illustration of an example method of facilitating a multiplex downlink transmission in a wireless communication system.

8 is an illustration of a wireless communication system in accordance with various aspects set forth herein.

9 is a block diagram of a system for facilitating multiplex downlink transmissions based on mobile device capabilities.

Figure 10 illustrates a system for providing other sector communications in accordance with one or more aspects presented herein.

11 illustrates a system for providing reverse link communication at a non-servo sector of a terminal in accordance with one or more aspects presented herein.

12 is an illustration of a wireless communication environment that can be employed in conjunction with the various systems and methods described herein.

Claims (43)

A method of wireless communication, comprising: receiving information about access terminal capabilities; and multiplexing a localized and distributed transmission to an access terminal on a downlink channel in a communication, wherein the The engineering is performed based on the capabilities and is based on reducing a number of localized sub-bands in an entire frequency band. The method of claim 1, wherein the multiplex is based on estimating a condition on one of the downlink channels. The method of claim 1, wherein the multiplex is based on user data. The method of claim 1, wherein the multiplex is based on a ratio of a high speed user to a low speed user. The method of claim 1, wherein the distributed allocation is performed between subcarriers in the localized subband as necessary. The method of claim 5, wherein the multiplex mechanism facilitates optimizing frequency diversity by notifying the scheduled users of their respective subcarrier allocations. The method of claim 6, further comprising signaling to the scheduled users a portion of the resources allocated to the distributed allocation user. The method of claim 6, wherein the number of localized sub-bands constituting a frequency band remains constant regardless of the number of distributed allocations present. The method of claim 1, wherein the multiplexing is based on reducing the number of subcarriers as the distributed allocation of resources increases. The method of claim 1, wherein as the distributed allocation of resources increases, the number of localized subbands decreases, and the subcarriers in the localized subbands The number of waves is maintained and maintained within a certain range. The method of claim 1, further comprising transmitting information regarding a boundary between the localized sub-bands and a spacing between the dispersed sub-carriers to a scheduled user. The method of claim 11, wherein the specific resource allocation is to upload a letter to each of the scheduled user's respective control channels and includes a sub-band identifier, a starting point and spacing of the distributed users, or localized use. The starting point of the person and the number of carrier frequencies. The method of claim 12, further comprising assigning a type of sub-band identification (ID) to notify each of the respective scheduled user transmissions of whether to be localized, decentralized, or localized and distributed. The signals are such that the scheduled users have an understanding of the interpretation of an associated control channel. The method of claim 1, wherein the one frequency band is divided into localized sub-bands, and the inter-distributed allocation distance of the punctures is specified for each of the localized sub-bands. The method of claim 14, wherein the one or more localized sub-bands are decentralized to reduce a number of sub-bands that require uplink quality feedback. The method of claim 15, wherein the one of the individually scheduled users controls the channel to upload a particular resource allocation. The method of claim 16, wherein the decentralized allocation is not uniformly dispersed across the localized sub-bands. The method of claim 17, wherein the multiplexing comprises completely dispersing one or more localized sub-bands, and the surrounding localized sub-bands are by resources Decentralized puncture for localization and localization without localization by decentralized puncture of resources. The method of claim 18, wherein the multiplex provides one of the localized sub-bands to be spread to remain constant. The method of claim 1, wherein the number of localized subbands is reduced when the decentralized allocation is significant to facilitate achieving channel quality addition reduction during the uplink. The method of claim 20, wherein if a bandwidth addition reduction is required instead of a power reduction, an additional three bits may be employed to improve the elaboration of the channel quality feedback. A device for wireless communication, comprising: a memory for storing information; a processor for executing instructions; and an optimization component for receiving information about access terminal capabilities and in a communication Partializing and decentralized transmission multiplexing to an access terminal on a downlink channel, wherein the multiplexing is performed based on the capabilities and based on reducing a number of localized subbands in an entire frequency band . The device of claim 22, wherein the optimizing component performs the multiplex based on an estimated condition on the downlink channel. The device of claim 22, wherein the optimizing component performs the multiplexing based on the user profile. The device of claim 22, wherein the optimizing component performs the multiplexing based on a ratio of a high speed user to a low speed user. A computer readable medium having computer executable instructions stored thereon, the computer executable instructions for performing the following actions: receiving information about access terminal capabilities; and transmitting localized and distributed communications in a communication An access terminal is implemented on a downlink channel, wherein the multiplex is performed based on the capabilities and is based on reducing a number of localized subbands in an entire frequency band. A computer readable medium as claimed in claim 26, having stored thereon instructions for multiplexing based on an estimated condition on the downlink channel. The computer readable medium of claim 26, wherein the instructions for multiplexing based on user data are stored thereon. The computer readable medium of claim 26, wherein the instructions for multiplexing are based on a ratio of a high speed user to a low speed user. A computer readable medium as claimed in claim 26, which has stored thereon instructions for signaling a portion of a resource allocated to a distributed user to a scheduled user. A computer readable medium as claimed in claim 26, which has stored thereon instructions for multiplexing based on reducing the number of subcarriers as the distributed allocation of resources increases. The computer readable medium of claim 26, wherein the instructions for transmitting information regarding the boundaries between the boundaries of the localized subbands and the spaced subcarriers to the scheduled user are stored thereon. A computer readable medium as claimed in claim 32, storing thereon a sub-band identification (ID) for assigning a type to notify each of the respective schedules The user transmission will be a localized, decentralized or localized transmission and a multiplexed transmission of one of the multiplexed signals such that the scheduled users have an understanding of the interpretation of an associated control channel. A processor having stored thereon computer executable instructions, the processor comprising: means for receiving information about access terminal capabilities; and for multiplexing localized and distributed transmissions in a communication to A component of an access terminal on a downlink channel, wherein the multiplex is performed based on the capabilities and is based on reducing a number of localized subbands in an entire frequency band. The processor of claim 34, having means for multiplexing based on one of the estimated conditions on the downlink channel. A processor as claimed in claim 34, having means for multiplexing based on user profiles. A processor as claimed in claim 34, having means for multiplexing based on a ratio of a high speed user to a low speed user. A processor of claim 34 having means for signaling a portion of a resource allocated to a distributed user to a scheduled user. The processor of claim 34, having means for multiplexing based on reducing the number of subcarriers as the distributed allocation of resources increases. The processor of claim 34, having means for communicating information about the boundaries of the localized subbands and the spacing between the dispersed subcarriers to the scheduled user. A processor as claimed in claim 40, having a subband for assigning a type Identification (ID) to notify each of the respective scheduled users that the transmission will be a localized, decentralized or localized transmission and a multiplexed transmission of one of the multiplexed signals such that the scheduled users have an associated The component of the understanding of the interpretation of the control channel. A method of communicating on a downlink channel in a wireless communication system, comprising: receiving information regarding high speed capabilities and low speed capabilities of a plurality of access terminals in the wireless communication system; and in the downlink Communication from one of the channel channels to the plurality of access terminals is transmitted to the one or more of the plurality of access terminals associated with the low speed capability by multiplex localization, and the multiplex transmission is transmitted to and from the multiplex ???the other one or more of the plurality of access terminals associated with the high speed capability to optimize the downlink channel, wherein the multiplexing is based on reducing a number of localized subbands in an entire frequency band, when The multiplex changes when the number of the plurality of access terminals associated with the high speed capability increases. The method of claim 42, wherein the multiplexing comprises assigning a plurality of fixed sub-bands comprising sub-carriers in the downlink channel, and allocating at least one of the fixed sub-bands for the decentralized transmission.