BRPI0708972A2 - device and method for quick access in a wireless communication system - Google Patents

Abstract

APPLICATION AND METHOD FOR QUICK ACCESS IN A WIRELESS COMMUNICATION SYSTEM Systems and methodologies that facilitate quick access to a wireless communication system such as OFDMA are described. According to various aspects, the system and methods are described for transmitting an access probe, receiving a first grant message, wherein the first grant message comprises a portion representing a first identification, transmitting a message using a second identification, where the second identification is not the same as the first identification. In addition, the generation of an access grant in response to receipt of the access probe where the grant where the grant of access comprises a part representing a first identification.

Description

"Quick Access Device and Method in a Wireless Decommunication System"

Related Request Cross Reference

This application claims the benefits of U.S. Provisional Application No. 60 / 784,740, filed March 20, 2006, entitled FAST ACCESS METHOD. The entire claim is incorporated herein by reference.

Fundamentals

Field

The following description generally relates to wireless communications and more particularly to schemes for rapid access to resources.

Fundamentals

Wireless communication systems are broadly designed to provide various types of communication content such as voice, data, and so on. These systems may be multi-access systems capable of supporting multi-user communication by sharing available system resources (for example, bandwidth and transmission power). Examples of such multiple access systems include code division multiple access (CDMA) systems. , Time Division Multiple Access Systems (TDMA), Frequency Division Multiple Access Systems (FDMA), and Orthogonal Frequency Division Multiple Access Systems (OFDMA).

Wireless communication systems have become a major mechanism through which most people in the world communicate. Wireless communication devices have become smaller and more powerful in order to meet consumer needs, improve portability and convenience. The increase in the processing power of mobile devices such as mobile phones has led to an increase in demands on wireless network transmission systems.

A typical wireless communication network (for example, employing frequency, time, and code division techniques) includes one or more base stations providing a coverage area and one or more mobile (for example, wireless) terminals that can transmit and receive. data within the coverage area. A typical base station can simultaneously transmit multiple streams of data for railroadcast, multicast, and / or unicast services, where a data stream is a data stream that may be independent of the receiving interest for a mobile terminal. A mobile terminal within the coverage area of this base station may be interested in receiving one, more than one or all of the data streams carried by the composite stream. Similarly, a mobile terminal may be transmitted to the base station or other mobile terminal.

In Long Term Evolution (LTE) systems, a random access channel (RACH) can be used when a terminal or user equipment (UE) requires resources to establish a connection to the base station (for example, Node B or network). access). The random access channel parameters are periodically broadcast by Node B in the downlink common control channel (CCCH). 0UE can transmit via RACH only after you have achieved downlink synchronization and get the most currentRACH parameters. RACH is also used for Uplink layer 1 synchronization and requesting uplink air link resource designation. In the orthogonal nature of the uplink air interface (eg OFDM or OFDMA systems), it may be necessary for RACH resources to be reserved and used for access only. RACH usage is bursty and may be much lower than the programmed traffic data channel usage. Therefore, there is a need for minimal data to be transmitted in RACH as short access safeguards.

summary

The following is a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all aspects contemplated, and is not intended to identify critical or key elements of all aspects or to delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as an introduction to the more detailed description which will be presented later.

According to one aspect, a fast accessor method in a wireless communication system, the method generating an access probe comprising an access preamble having quality of service information and transmitting the access probe on a random access channel.

According to one aspect, a fast access method in a wireless communication system, the method receiving an access probe, the access probe comprising quality of service information, generating an access grant in response to the received access probe, encrypting the granting access using information from the access probe, and transmitting access access. According to another aspect, an apparatus operating in a wireless communication system, the apparatus comprises: mechanisms for transmitting an access probe; mechanisms for receiving a first access grant, where a portion of the first access grant is set to null; and mechanisms for transmitting user data together with a first MAC ID if user data is transmitted after receiving the first access grant.

In another aspect, an apparatus operable in a wireless communication system, the apparatus comprises: mechanisms for receiving an access probe, mechanisms for generating an access grant in response to receiving the access probe where the access grant comprising a part of the granting of access is set to null; and mechanisms for receiving user data and a first MAC ID.

According to another additional aspect, a computer readable medium has stored in the same computer executable instructions for carrying out the following instructions: transmission of an access probe; receiving a first access grant, where a portion of the first access grant is set to null; Transmitting user data together with a first MAC ID if user data is transmitted after receiving the first access grant.

In another aspect, a computer readable medium has been stored in the same executable instructions per computer for performing the following instructions: receiving an access probe; generating an access grant in response to receiving the access probe where the grant of access comprising a grant of access is set to null; and receiving user data and a first MAC ID.

According to another aspect, an integrated circuit comprises: mechanisms for transmitting an access probe; mechanisms for receiving a first grant of access, where a portion of the first grant of access is set to null; and mechanisms for transmitting user data together with a first MAC ID if user data is transmitted upon receipt of the first grant of access.

In another aspect, an integrated circuit comprises: mechanisms for receiving an access probe; mechanisms for generating an access lease in response to receiving the access probe wherein the access lease comprising a portion of the access lease is set to null; and mechanisms for receiving user data and a first Mac ID.

According to another additional aspect, an electronic device operable in a wireless communication system comprises: a transmitter, the transmitter transmitting an access probe; a receiver, the receiver receiving a first access grant, where a portion of the first access grant is set to null; and the transmitter further transmitting user data together with a first MAC ID if user data is transmitted after receiving the first access grant.

In another additional aspect, according to one aspect, a fast access method in a wireless communication system comprises: transmitting an access probe; receiving a first grant message, wherein the first grant message comprises a portion representing a first identification; and transmitting a message using a second identification; where the second ID is not the same as the first ID.

According to another aspect, a fast access method in a wireless communication system comprises: receiving an access probe; generating an access grant in response to receiving the access probe where granting access comprising a part representing a first identification; and receiving a message comprising a second identification that is not the same as the first transmitted identification.

According to another aspect, an apparatus operable in a wireless communication system, the apparatus comprises: mechanisms for transmitting an access probe; mechanisms for receiving a first grant message, wherein the first grant message comprises a portion representing a first identification; and mechanisms for transmitting a message using a second identification, where the second identification is not the same as the first identification.

Another aspect relates to an apparatus operable in a wireless communication system, comprising: mechanisms for receiving an access probe, mechanisms for generating an access concession in response to receiving the access probe where the access concession comprises a part representing a first identification; and mechanisms for receiving a message comprising a second identification that is not the same as the first transmitted identification.

Another aspect relates to a computer readable medium having stored the same computer executable instructions for carrying out the following instructions: transmission of an access probe; receiving a first grant message, wherein the first grant message comprises a part representing a first identification; and transmitting a message using a second identification, wherein the second identification is not the same as the first identification.

Another aspect provides a computer readable medium having stored in the same computer executable instructions for performing the following instructions:

receive an access probe; generating an access grant in response to receiving the access probe where the granting access comprising a part that has a first identification; and receiving a message comprising a second identification that is not the same as the first transmitted identification.

Another aspect relates to an integrated circuit comprising: mechanisms for transmitting an access probe; mechanisms for receiving a first lease message, wherein the first lease message comprises a part representing a first identification; . and mechanisms for transmitting a message using a second identification, where the second identification is not the same as the first identification.

According to another aspect, an integrated circuit comprises: mechanisms for receiving an access probe; mechanisms for generating an access grant in response to receiving the access probe where the granting access comprises a portion representing a first identification; and mechanisms for receiving a message comprising a second identification that is not the same as the first transmitted identification. According to another aspect, an electronic device operable in a wireless communication system, the electronic device comprises: a transmitter, the transmitter transmitting an access probe; a receiver, the receiver receiving a first lease message, wherein the first lease message comprises a part representing a first identification; and the transmitter transmitting a message using a second identification, wherein the second identification is not the same as the first identification.

Another additional aspect relates to an electronic device operable in a wireless communication system, comprising: a receiver, the receiver receiving an access probe; a processor, the processor generating an access grant in response to the receipt of. access probe where the access grant comprises a portion of the null access grant representing a first identification; and the receiver further receiving user data and a first MAC ID, a message comprising a second identification that is not the same as the first transmitted ID.

In order to achieve the above and other related purposes, one or more aspects comprise the features fully described later and particularly set forth in the claims. The following description and the accompanying drawings present in detail certain illustrative aspects of one or more aspects.

These aspects are indicative, however, of only a few of the various ways in which the principles of the various aspects can be employed and the described aspects should include all such aspects and their equivalences.

Figure 1 is an illustration of an illustrative system that performs optimal downlink transmission in a wireless communication environment;

Figure 2 is an illustration of an illustrative methodology that facilitates a type of system employed by an access point in a wireless communications system;

Figure 3 is an illustration of an illustrative methodology that facilitates a type of system employed by an access terminal in a wireless communications system;

Figure 4 is a methodology that facilitates a fast access procedure in a wireless communication system according to various aspects presented herein;

Figure 5 is an illustrative methodology that facilitates receipt of an access probe in a wireless communication system;

Figure 6 illustrates a wireless communication system according to various embodiments presented herein;

Figures 7A and 7B illustrate systems that facilitate fast access in wireless communication;

Figure 8 illustrates a terminal or device that provides other sector communication in a wireless communication environment in accordance with one or more aspects presented herein;

Figure 9 is an illustration of a system that facilitates communication from another sector in a communication environment according to various aspects;

Figure 10 illustrates an illustrative wireless communication system according to various aspects.

Various embodiments are now described with reference to the drawings, in which like numeric references are used to refer to like elements. In the following description, for purposes of explanation, numerous specific details are presented in order to provide a thorough understanding of one or more modalities. It may be apparent, however, that such modality (s) may be practiced. (s) without these specific details. In other cases, well-known structures and devices are illustrated in block diagram form to facilitate description of one or more embodiments.

As used in this application, the terms "component", "module", "system" and the like shall refer to a computer related entity, whether hardware, firmware, a combination of running hardware and software, software, or software. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable element, a sequence of execution, a program, and / or a computer. By way of illustration, both an application running on a computing device and the computing device itself may be a component. One or more components may reside within a process and / or sequence of execution, and one component may be located on one computer and / or distributed between two or more computers. Additionally, these components may be executed from multiple computer readable mechanisms having multiple data structures. The components may communicate by mechanism of local and / or remote processes such as according to a signal having one or more data packets (for example, data from one component interacting with another component in a local system, distributed system, and / or via a network such as the Internet with other systems by signal mechanism).

Additionally, various embodiments are described herein with respect to a mobile device. A mobile device can also be called system, subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, access terminal, user terminal, terminal, wireless communication device, user agent, home user device User Name (UE). A mobile device may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) telephone, a local wireless wireless station (WLL), a personal digital assistant (PDA), a portable device having wireless disconnect capability. , a computing device, or other processing device connected to a wireless modem.

In addition, various embodiments are described herein with respect to a base station. A base station may be used for communication with mobile devices and may also be referred to as an access point, Node B, or some other terminology.

In addition, various aspects or features described herein may be implemented as a method, apparatus or article of manufacture using standard programming and / or engineering techniques. The term "manufacturing article" as used herein shall encompass a computer program accessible from any computer, bearer or media readable device. For example, computer readable media may include, but is not limited to, magnetic storage devices (eg, hard disk, floppy disk, magnetic stripe, etc.), optical discs (eg compact disc (CD), digital versatile disc (DVD), etc.), smart cards, and flash memory devices (for example, EPROM, card, stick, key drive, etc.). Additionally various storage mechanisms described herein may represent one or more machine readable devices and / or mechanisms for storing information. The term "machine readable medium" may include, but is not limited to, wireless channels and various other mechanisms capable of storing, containing and / or carrying instructions and / or data.

Referring now to Figure 1, a system 100 which performs optimal downlink transmission in a wireless communication environment is illustrated according to various modalities. Base station 102 is configured to communicate with one or more mobile devices 104. Base station 102 is comprised of an optimization component 106 which allows multiplexing of distributed and distributed transmissions and a receiving component 108 which, for example, receives information regarding the capabilities of the station. base. Optimization component 106 allows downlink transmission so that diversity of frequency is achieved and overhead costs associated with transmission are mitigated through various schemes, as discussed below. As may be appreciated, multiplexing of localized and distributed broadcasts allows for the accommodation of various traffic services, user capabilities, and additionally allows one user of one or more mobile devices 104 to take advantage of channel properties. In addition, for example, one or more mobile devices 104 may provide the optimization component 1Ό6 in base station 102 with information related to the capabilities of the mobile device, an estimate of subscriber data downlink channel conditions. It is also appreciated that base station 102 can determine a percentage of high speed vs. low speed users, store the subscriber data and information related to the capabilities of the mobile device. Such capabilities of the base station 102 may additionally allow the optimizing component 106 to choose the optimum multiplexing scheme according to the surrounding conditions.

Referring to Figures 2 and 3, the methodologies referring to a fast access communication system are illustrated. While, for purposes of simplified explanation, methodologies are illustrated and described as a series of acts, it should be understood and appreciated that methodologies are not limited by the order of acts, as some acts may, according to the subject matter claimed, occur in a different order. and / or simultaneously with other acts of what is illustrated and written here. For example, those skilled in the art will understand and appreciate that a methodology may alternatively be represented as a series of interrelated states or events, such as in a state diagram. In addition,. Not all illustrated acts may be necessary to implement a methodology according to the claimed subject matter.

Turning specifically to Figure 2, a methodology 200 that facilitates a quick access procedure in a wireless communication system (e.g. OFDM or OFDMA systems) is illustrated. The method can be used for initial access, synchronization when the end has lost synchronization or is not synchronized with the access network, or handoff. The method starts at 202, an access probe is transmitted to the access network (Node B). In one aspect, the access probe is transmitted in RACH. To minimize the use of uplink resources, only one preamble is transmitted. The preamble may include downlink C / I information (allows power control of an access grant message sent in downlink in response to the access probe, discussed below), channel quality indicator feedback, QoS related information (allows programmer to select and / or prioritize the initial resource designation), Random ID (reduces the likelihood of identical access probes from different EUs reaching Node B at the same time) and Cell ID (used to encrypt the access probe so that the probe is decoded with Node B target success only). An access probe preamble comprises an access sequence. The access sequence is derived from the UE downlink C / I, QoS information and / or a random number used to avoid possible collisions. In one aspect, all access sequences are orthogonal. The access sequence is encrypted before transmission by the cell-specific decryption sequence. In another aspect, the encryption sequence is not only a cell ID function but also in addition to the cell ID a MAC doID function (any kind of UE ID is sufficient).

In one aspect, after transmission of the access probe the method moves to 204, a determination is made as to whether an access grant is received in response to the access probe. If access lease is received, the method moves to 206 after decoding the lease using access probe information. At 206, a connection open request message (for example, ConnectionOpenRequest) is transmitted and the method waits for the response. At 208, a connection open response message (ConnectionOpenResponse) is received in response to the open connection request message. In another respect, if the terminal has already received a MAC ID (for example, when the terminal is in the active state) The method described in 206 and 208 may be eliminated and the terminal may begin to exchange data with the access network.

Referring again to 204, if the grant of access is not received after a predetermined time, the method moves to 208. At 210, a determination is made as to whether a predetermined maximum number of transmissions has been reached. If the maximum number of access probe transmissions is being reached, then the method moves to 212. At 212, the transmission power is reset to the original level and the access probe is retransmitted. The method moves to 204 to check if the access grant has been received. If the maximum number of access probe retransmissions has not been reached, the method moves to 214. At 214, the access probe is retransmitted with higher power. The method moves to 204 to verify that the grant of access has been received.

Referring now to Figure 3, an illustrative methodology 300 that facilitates receiving an access probe in a wireless communications system is illustrated. The method begins at 302, an access probe comprising an access sequence being received. If the access probe is successfully detected, then the method moves to 304. At 304, the access network generates an access grant.

Granting access is associated with the access probe and uses information from the received access probe, the access network determines the parameters for providing the terminal associated with the access probe so that the terminal is permuted with the access network. Granting access, among other things, comprises a terminal MAC ID, uplink feature assignment, and uplink tweaks. Access grant can be encrypted and protected using error correction schemes. If the access grant is transmitted on a broadcast channel to multiple terminals, then it may be encrypted using access probe information so that only the requestor is able to decode the access grant. For example, Node B encrypts the grant of access with the access preamble sequence it received.

Only the UE that has selected the corresponding access preamble sequence can decode the access grant. After the grant of access is generated, at 306, the method passes to. , granting access and waiting for the request for an open connection. At 308, the open connection request message is received. After terminal authentication, at 310, the open disconnect response message is transmitted.

In another aspect, the methodologies illustrated in Figures 2 and 3 may be applied to the handoff scheme.

The UE negotiates the handoff with the source Node B. In parallel, the source Node B negotiates the handoff with the target Node B. Before the UEpower begins data exchange on the target Node B, the UE transmits the synchronization message towards the Balanced Node. The synchronization message consists of the access preamble and is transmitted in RACH. The encryption sequence is a function of the target cell ID as its MAC ID. When uplink synchronization is achieved, the target Node B sends access access to the UE.

In another aspect, the methodologies illustrated in Figures 4- and 5 may be applied to synchronization. Turning specifically to Figure 4, a methodology 400 that facilitates a quick access procedure in a wireless communication system (eg OFDM or OFDMA systems). ) is illustrated. The method can be used for synchronization when the terminal has lost synchronization or is not synchronized with the access network or handoff. Method 400 is executed at the terminal determining that it is not in sync with the access network. The terminal may lose synchronization with network access if the terminal transitions to standby from active mode, deep fading, or during a handoff procedure. In one aspect, the method begins 404, the access terminal transmits an access signature (may be referred to as an access probe) to the access network (Node B). In one aspect, the access probe is transmitted RACH node. The access probe may include downlink C / I information, channel quality indicator feedback, QoS-related information, RandomID, cell ID, or MAC ID indicator. Since this method is for resynchronization, the terminal may already have a MAC ID and not need a new MAC ID from the access network. In one aspect, the MAC ID indicator of the access probe may be determined to indicate that a new MAC ID is not desired or that the MAC ID indicator is not used.

After transmission of the o.modomodove access probe to 406, the terminal receives a UL access grant from the access network (Node B) in response to the access probe. In one aspect, the first UL grant message received in response to the access probe may contain information about UL features, timing parameters for adjusting timing, and a MAC ID portion. In one aspect, the MAC ID part can be set to NULL (for example, a series of zeros or any pattern used to indicate unusable data) for the first UL access message received in response to the access probe. The terminal may bypass the processing of the MAC ID part of the lease message. Where the MAC ID portion is not NULL (access network assigned a new MAC ID), the terminal may continue to ignore the new MAC ID and use any previously designated IDMACs stored in memory. If a terminal does not have a designated MAC ID, then the terminal may use the MAC ID of the access grant message. In another aspect, the access network may provide the MAC ID extracted from memory based on the access probe information. In this regard, the UL lease message may comprise different parameter sets and the terminal may process the different MAC ID portion of the UL grant message.

With reference to 408, using the parameters received from the granting of access, communication is established with the access network where the terminal begins to communicate user data. In one aspect, the terminal provided its MAC ID when broadcasting on the uplink shared channel. The access network can store this memory MAC ID. At 410, the terminal receives a second UL access grant message or subsequent access network message. The terminal processes the MAC ID portion of all UL grant messages received upon receipt of the first UL access grant message (discussed in 406). Thereafter, in 412, the terminal transmits user data on the uplink shared channel, but does not provide the MAC ID as part of subsequent god data transmissions.

Referring now to Figure 5, an illustrative methodology 500 that facilitates receiving an access probe in a wireless communications system. The method starts at 502, an access probe being received. If the access probe is successfully detected, then the method moves to 504. At 504, the access network generates an access grant. Granting access is associated with the access probe and user information of the received access probe.

The access network determines the parameters for providing the terminal associated with the access probe for the terminal to exchange data with the access network. Granting access, among other things, includes the douplink feature designation and uplink tweaks. In one aspect, the access probe may include a MAC ID indicator. If the MAC ID indicator is part of the access probe and is configured (thus, the terminal is requesting that the access network designate a MAC ID), then a MAC ID may be included as part of the access grant message. In another aspect, the access probe does not include any indication that a MAC ID has been requested. In this respect, apart from the MAC ID of the UL access grant message transmitted in response to the access probe indicating that the IDMAC is not requested, the MAC ID is given as NULL. In another aspect, the access probe comprises a first indicator. If the first indicator is set, then the access network determines the access probe as a zero rate request and the access network can only provide timing adjustment or power adjustment. At 506, the access network receives a first message after granting access. The first message may contain IDMAC or user data. At 508, the access network updates memory to indicate that all future messages, such as a second UL access grant message, will use the received MAC ID.

Referring now to Figure 6, a wireless communication system 600 is illustrated according to various embodiments presented herein. System 600 may comprise one or more base stations 602 (e.g., access points) in one or more sectors that receive, transmit, repeat, etc., communication signals to one another and / or to one or more mobile devices 604. Each base station 602 may comprise a transmitting current and a receiving current, each of which may in turn comprise a plurality of components associated with signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas). ...) as will be appreciated by those skilled in the art. Mobile devices 604 may be, for example, mobile phones, smart phones, laptops, portable communication devices, portable computing devices, satellite radios, global positioning systems, PDAs, and / or any other device suitable for communication through the Wireless communication 600.

Base stations 602 may broadcast content to mobile devices 604 by employing OFDM or OFDMA techniques. Frequency division techniques such as OFDM typically separate the frequency spectrum into distinct channels, for example, the frequency spectrum can be divided into uniform bandwidth (frequency band) parts. OFDM effectively divides the total system bandwidth into multiple orthogonal frequency channels. Frequency channels may use Sync or Async HARQ designations, depending on system requirements. Additionally, an OFDM system can use time and / or frequency division multiplexing to achieve orthogonality between multiple data transmissions to multiple base stations 602.

Referring now to FIG. 7A, a system 700 that facilitates rapid access in illustrated wireless communication. System 700 may include a module 702 for generating an access probe, a module 704 for receiving a first access grant, and module 706 for transmitting user data. Modules 702, 704, and 706 may be a processor or any electronic device and may be coupled to memory module 708.

Referring now to FIG. 7B, a system 750 that facilitates rapid access in illustrated wireless communication. System 750 may include a module 752 for receiving an access probe, a module 754 for granting an access grant in response to the received access probe, and a module 756 for receiving god data. Modules 752 to 756 may be a processor or any electronic device and may be coupled to a 760 memory module.

Fig. 8 is an illustration of a terminal or user device 800 that provides other disallowed communication in a commonly agreed wireless communication environment or more aspects presented herein. Terminal 800 comprises a receiver 802 which receives a signal, for example, one or more receiving antennas, and performs the typical actions (e.g., filters, amplifies, downconverts, etc.) of the received signal and digitizes the conditioned signal to obtain samples. An 804 demodulator can demodulate the samples and provide the pilot symbols received for an 806 processor.

Processor 806 may be a dedicated processor for analyzing information received by component receiver 802 and / or for generating information for transmission by an 814 transmitter. Processor 806 may be a processor that controls one or more terminal components 800, and / or a processor that analyzes The information received by the receiver 802 generates information for transmission by a transmitter 814, and controls one or more of the terminal 800 components. Processor 806 may use any of the methodologies described herein, including those described with reference to figures 2 and 3.

Additionally, terminal 800 may include a transmission control component 808 that analyzes incoming input, including acknowledgments of successful transmissions. Acknowledgments (ACK) can be received from the server and / or from a neighboring sector. Acknowledgments may indicate that a previous transmission was successfully received and decoded by one of the access points. If no acknowledgment is received, or if a negative acknowledgment (NAK) is received, the transmission may be resent. The transmission control component 808 may be incorporated into the 806 processor. It should be appreciated that the transmission control component 808 may include the transmission control code which performs the analysis with respect to determining acknowledgment receipt.

Terminal 800 may additionally comprise memory 810 which is operably coupled to processor 806 and which may store transmission related information, an active set of sectors, methods for controlling transmissions, lookup tables comprising related information thereof, and any other appropriate related information. with broadcasts and active set sectors as described here. It will be appreciated that the data storage components (e.g. memories) described herein may be volatile memory or nonvolatile memory, or may include both volatile memory and nonvolatile memory. By way of illustration, and not limitation, nonvolatile memory may include read only memory (ROM), programmable ROM (PflOM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which acts as external cache memory. By way of illustration rather than limitation, RAM is available in many forms such as Synchronized RAM (SRAM), Dynamic RAM (DRAM), Synchronized DRAM (SDRAM), Dual Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 810 of these systems and methods shall include, but are not limited to, these and any other suitable types of memory. Processor 806 is connected to a symbolic modulator 812 e. transmitter 814 which transmits the modulated signal.

Figure 9 is an illustration of a 900 system that facilitates communication from another sector in a communication environment according to various aspects. System 900 comprises an access point 902 with a receiver 910 which receives signals from one or more terminals 904 through one or more receiver antennas 906, and transmits to one or more terminals 904 via a plurality of transmitting antennas 908. Terminals 904 may include supported terminals. by access point 902, in addition to 904 supported by neighboring sectors. In one or more aspects, the receiving antennas 906 and the transmitting antennas 908 may be implemented using a single set of antennas. The receiver 910 may receive information from the receiving antennas 906 and is operatively associated with the demodulator 912 which demodulates the received information. The receiver 910 may be, for example, a Rake receiver (for example, a technique that individually processes multipath signal components using a plurality of color. Baseband relationship ...), an MMSE-based receiver, or some other suitable receiver. separate the terminals designed for it, as will be appreciated by those skilled in the art. In many respects, multiple receivers may be employed (e.g., one per receiving antenna) and such receivers may communicate with one another to provide improved estimates of user data. The demodulated symbols are parsed by a processor 914 that is similar to the process described above with respect to Figure 10, and is coupled to a memory 916 that stores information related to the endpoints, designated resources associated with the similar terminaise. The receiver output for each antenna can be processed together by receiver 910 and / or processor 914. A modulator 918 can multiplex the transmission signal by a transmitter 920 via antennas 908 to the terminals. 904.

Access point 902 further comprises a terminal communication component 922, which may be a processor separate from or integral with processor 914.

Terminal communication component 922 can obtain resource assignment information for terminals supported by neighboring sectors. In addition, terminal communication component 922 may provide designation information for neighboring sectors for the terminals supported by access point 902. Designation information may be provided by return transport channel signaling.

Based on information regarding designated resources, the terminal communication component 922 can direct detection of terminal transmissions supported by neighboring sectors, in addition to decoding incoming transmissions. Memory 916 can hold packets received from terminals prior to receiving the designation information required for decoding packets. Terminal communication component 922 can also control transmission and reception of acknowledgments indicating successful reception and decoding of transmissions. It will also be appreciated that the terminal communication component 922 may include transmission analysis code that performs utility-based control with respect to designation features, soft-handoff terminal identification, transmission decoding, and the like. The terminal analysis code may use methods based on artificial intelligence with respect to making inferences and / or probabilistic determinations and / or statistical based determinations with respect to optimizing terminal performance.

Fig. 10 illustrates an illustrative wireless communication system 1000. Wireless communication system 600 has a terminal and two access points for survival purposes. However, it should be appreciated that the system may include one or more access points and / or more than one terminal, where the additional access points and / or terminals may be substantially similar to or different from the illustrative access points and terminals described below. Additionally, it should be appreciated that access points and / or terminals may employ the systems (Figures 1 and 4 to 9) and / or methods (Figures 2 and 3) described herein.

Figure 10 illustrates a block diagram of a terminal 1004, a server access point 1002x supporting terminal 1024, and a neighboring access point 1002Y in the multi-carrier and multiple access communication system 1000. At access point 1002X, a transmission data processor (TX) 1014 receives the traffic data (i.e. information bits) from a signaling data source 1012 and other information from a controller 1020 and a programmer 1030. For example, the programmer 1030 may provide carrier assignments for the terminals.

Additionally, a memory 1022 may hold information relating to current or previous designations. The TX 1014 data processor encodes and modulates the received data using multi-carrier modulation (e.g. OFDM) to provide modulated data (e.g. OFDM symbols). A transmitter unit (TMTR) 1016 then processes the modulated data to generate a downlink modulated signal. which is then transmitted from an antenna1018.

Prior to the assignment of assignment information to terminal 1004, the programmer may provide assignment information for access point 1002Y. Designation information may be provided by return transport channel signaling (for example, a TI line) 1010. Alternatively, assignment information may be provided to an access point 1002Y after transmission to terminal 1004.

At terminal 1004, the transmitted and modulated signal is received by an antenna 1052 and provided to a receiver unit (RCVR) 1054. Receiving unit 1054 processes and digitizes the received signal to provide samples. A received data processor (RX) 1056 then demodulates and decodes the samples to provide decoded data, which may include retrieved traffic data, messages, signaling, and so forth. Traffic data may be provided to a data store 1058, and carrier assignment information for terminal 1004 is provided to a controller 1060. Controller 1060 directs uplink data transmission using the specific bearers assigned to terminal 1004 and indicated carrier designation received. A 1062 memory can maintain information regarding designated resources (eg, frequency, time and / or code) and other related information.

For terminal 1004, a TX1074 data processor receives traffic data from a data source 1072 and signaling and other information from controller 1060. Various data types are encoded and modulated by the TX 1074 data processor using carriers designated and further processed by a transmitter unit 1076 to generate an uplink modulated signal which is then transmitted from antenna 1052.

At access points 1002X and 1002Y, signals transmitted and: · modulated from terminal 1004 are received by antenna 1018, processed by a receiving unit 1032, and demodulated and decoded by an RX 1034 data processor. Transmitted signals may be decoded based on the designation information generated by the 1002X server access point e. provided by neighboring access point 1002Y. Additionally, access points 1002X and 1002Y may generate an acknowledgment (ACK) which may be provided to the other access point (1002X or 1002Y) and / or to terminal 1004. The decoded signals may be provided to a 1036 data store. receiver unit 1032. can estimate the received signal quality (for example, the received signal-to-noise ratio (SNR)) for each terminal and provides this information to the controller1020. The RX 1034 data processor provides the retrieved feedback information for each terminal to the 1020 controller and 1030 programmer. The 1030 programmer uses the feedback information to perform various functions such as (1) selecting a set of terminals for reverse link data transmission and (2) ) assign carriers to the selected terminals. The carrier designations for the programmed terminals are then transmitted on the direct link to those terminals.

The techniques described herein may be implemented by various mechanisms. For example, these techniques may be implemented in hardware, software or a combination thereof. For a hardware implementation, the processing units (for example, 1020 and 1060 controllers, TX and RX 1014 and 1034 processors, and so forth) for these techniques may be implemented within one or more of the application specific integrated circuits (ASICs), processors Digital Signal Processing Devices (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Assemblies (FPGAs), Processors, Controllers, Microcontrollers, Microprocessors, other electronic units designed to perform the functions described herein, or a combination of them.

For a software implementation, the techniques described here may be implemented in modules (eg, procedures, functions, and so forth) or perform the functions described herein. Software codes can be stored in memory units and executed by processors. The memory unit may be deployed inside the processor or outside the processor, in which case it may be communicatively coupled to the processor via various mechanisms as is known in the art. The above has included examples of one or more aspects. It is, of course, impossible to describe the conceivable combination of components and paraffin methodologies for describing the aspects mentioned above, but those skilled in the art may recognize that many different combinations and exchanges of various aspects are possible. Accordingly, the aspects described should encompass all such changes, modifications, and variations within the spirit and scope of the appended claims.

Additionally, to the extent that the term "includes" is used in the detailed description or claims, such term should similarly include the term "comprising" as "comprising" is interpreted when used as a transitional word in a claim.

Claims (26)

A fast access method in a wireless communication system, the method comprising: transmitting an access probe, receiving a first grant message, wherein the first grant message comprises a portion representing a first identification; transmitting a message using a second identification, where the second identification is not the same as the first identification. A method according to claim 1 further comprising receiving a second access grant comprising the first MAC ID, wherein the MAC ID is equal to the second identification. A method according to claim 2 further comprising transmitting subsequent god data without the use of MAC ID. The method of claim 1, further comprising determining whether asynchronization with an access network has been lost prior to transmission of the access probe. The method of claim 1, further comprising determining whether the terminal state is the latent state prior to transmission of the access probe. The method of claim 1, further comprising increasing the transmission power at which a second access probe is transmitted prior to the transmission of a second access probe if the first access grant has not been received within the first time period. 7. Fast access method in a wireless communication system, the method comprising: receiving an access probe; generating an access grant in response to receiving the access probe where the access grant comprises a portion representing a first identification; receiving a message comprising a second identification that is not the same as the first identification transmitted. A method according to claim 7 further comprising transmitting a second access grant comprising the second identification extracted from the received message. A method according to claim 8 further comprising receiving subsequent user data without the first MAC ID. A method according to claim 7 further comprising transmitting a second accession comprising the first extracted memory identification. 11. An apparatus operable in a wireless communication system, the apparatus comprising: mechanisms for transmitting an access probe, mechanisms for receiving one. first non-granting message, wherein the first grant message comprises a part representing a first identification; and mechanisms for transmitting a message using a second identification, where the second identification is not the same as the first identification. The apparatus of claim 11 further comprising mechanisms for receiving a second access grant comprising the first IDMAC, wherein the MAC ID is equal to the second identification. Apparatus according to claim 12, further comprising transmitting subsequent god data without the use of MAC ID. Apparatus according to claim 11, further comprising mechanisms for determining whether synchronization with an access network has been lost prior to transmitting the access probe. Apparatus according to claim 11, further comprising mechanisms for determining whether the terminal state is the standby mode before access probe transmission. Apparatus according to claim 11 further comprising mechanisms for increasing transmission power in which a second access probe is transmitted before transmitting a second access probe if the first access grant has not been received within the first time period. 17. An apparatus operable in a wireless communication system, the apparatus comprising: mechanisms for receiving an access probe; mechanisms for generating an access concession in response to receiving the access probe where the access access comprises a portion representing a first identification; and mechanisms for receiving a message comprising one. second ID that is not the same as the first ID transmitted. An apparatus according to claim 7 further comprising transmitting a second access concession comprising the second extracted identification of the received message. Apparatus according to claim 8 further comprising mechanisms for receiving subsequent user data without the first MAC ID. Apparatus according to claim 7, further comprising mechanisms for transmitting a second access grant comprising the first identification extracted from memory. 21. Computer readable medium having stored in the same computer executable instructions for carrying out the following instructions: transmitting an access probe, receiving a first grant message, wherein the first grant message comprises a portion representing a first identification; transmitting a message using a second identification, where the second identification is not the same as the first identification. 22. Computer readable medium having stored in the same computer executable instructions for performing the following instructions: receiving an access probe; generating an access grant in response to receiving the access probe where the granting access comprises a part representing a first identification ; receiving a message comprising a second identification that is not the same as the first identification transmitted. 23. An integrated circuit comprising: mechanisms for transmitting an access probe, mechanisms for receiving a first concession message, wherein the first grant message comprises a portion representing a first identification; and mechanisms for transmitting a message using a second identification, where the second identification is not the same as the first identification. 24. An integrated circuit, comprising: mechanisms for receiving an access probe, mechanisms for generating an access concession in response to receiving the access probe where the access access comprises a portion representing a first identification; and mechanisms for receiving a message comprising a second ID that is not the same as the first ID transmitted. 25. An electronic device operable in a wireless communication system, the electronic device comprising: a transmitter, the transmitter transmitting an access probe, a receiver, the receiver receiving a first lease message, wherein the first grant message comprises a portion representing a first identification; and the transmitter transmitting a message using a second identification, where the second identification is not the same as the first identification. 26. Electronic device operable in a wireless communication system, the electronic device comprising: a receiver, the receiver receiving an access probe, a processor, the processor generating an access concession in response to receiving the access probe where the granting of access comprises a portion which represents a first identification; and the receiver additionally receiving a message comprising a second ID that is not the same as the first ID transmitted.