TWI357730B - Soft handoff of a cdma reverse link - Google Patents

Description

1357730 发明, INSTRUCTION DESCRIPTION: [Technical Field to Which the Invention Is Ascribed] The present invention relates generally to communication networks, and more particularly to soft handover operations for code division multiple access reverse links. [Prior Art] The form and demand for wireless communication services have grown at an unprecedented rate in the last two decades. Includes mobile phone, personal communication service (pers〇nal

Wireless voice communication services for Communication Services (PCS) and similar systems are now available in almost everywhere. The infrastructure used for such networks has been established as having more than one resident in the United States, Europe, and other industrialized regions of the world with more than one service provider. The continued growth in the electronics and computer industries contributes to the increased demand for access to numerous services and features. The use of computing devices including laptops, handheld personal digital assistants, Internet-enabled mobile phones and similar devices, especially portable types, has increased the demand for wireless data access. . Although the mobile phone and personal communication service networks are widely deployed, these two systems are not intended to be used to carry streaming information. Rather, the burst mode digital communication system required for Internet communication is designed to efficiently Φ媳, 4^, and a spear. Voice communication is also considered in a communication channel bandwidth of approximately 3 kilohertz. However, for effective Internet communication, a data rate of at least 56,000 bits per second is acceptable. 1357730 In addition, the nature of the circulation data stream itself is different from the nature of voice communication. The voice system requires a continuous multiplex link; that is, the user at the end of a link is expected to be continuously transmitted to and received by the user at the other end of the link. Elm. However, accessing the webpage through the Internet is generally not the same as the industry. You are not hoisting. Typically, a user of a remote client computer specifies the address of the e-month® file on a network server, such as μ. Then, the request is to format the sorrow * month water system into a fairly short information message 'typically a small length * _ , and another j % 丄υ ◦ τ τ ο group. Then, the other end of the link, such as one of the network words in the network, is written in the form of a text, image, or image from 10 kilobytes to millions of bytes. The requested data file of the sound or video material is responded to. Because of the inherent nature of (4) the Internet itself, users typically expect to delay at least a few seconds or more before the requested content begins to be transmitted to the user. Then, once the content is transmitted, the user is injured to view or read the contents of the page for a few seconds or even minutes at the time of designating the next page to be downloaded. Furthermore, the voice network is built to support the use of high mobility, and it is also the use of extremely long lengths to support the speed of the expressway, and the voice-based mobile and personal communication services. The user of the network / σ - the highway maintains the link when moving at high speed. However, the typical user of a supercomputer is quite static, such as sitting on the table: 'So, the important point of view of the 'moving' of the mobile unit for the wireless voice is usually not Needed to support data access [Abstract] 1357730 It is meaningful to improve some of the components of existing wireless infrastructure to more efficiently fit the wireless 'data. The implementation of external functions such as new user ratings for users with high data rates and low mobility should be used backwards and now for the low lean rate and the south mobile force. Rong. This will allow the use of the existing voice network to become the same frequency allocation plan for the gentleman's warfare ^ ^ 日's basic structure, the base station antenna 'construction position is the straight fairy two sales · 1 ugly and On the other hand, to provide new high-speed data services. It is particularly important to support as high a data rate as possible on the reverse link of a network such as & on the reverse link, such as by a remote unit to the base station. Consider such as IS-95 code division multiple access (c〇de Dwisi〇n

The existing-digit operations of Multiple Access (CDMA) specify the use of different code sequences in a forward link direction to maintain the minimum interference between channels. To be clear, such as a system using orthogonal codes in the forward keyway, which defines the individual logic frequency m', the best operating system of such a system requires all such codes to be time-aligned with a specific boundary. The orthogonality is maintained at the receiver. Therefore, the transmission system must be synchronized. This is not a particular consideration in a forward link because all of the transmissions originate in the same location, also in the location of a base station transceiver. However, the current digital bit code multi-access standard does not use or require orthogonality between channels in the reverse link direction. As the saying goes, the synchronization of the hypothesis originates from the fact that multiple transmissions at different locations are at a distance from the base station and may be quite different distances from the base station: but these systems are typically used with this The length of the pseudo-random random code is garbled at the wafer level to identify the individual reverse link 77 is the 7730 frequency. However, using this garbled code excludes the user who is different from each other in the parental + τ τ η potassium The possibility of transmission. Thus, an embodiment of the present invention includes communication between a user/a user of the first group and a composition/user of a group of eight, spears. It can be used for multiple digits and multiple digits to access the mobile phone. First, the user of the first user of the user is connected with a common first: code. The first group is User is provided by

The code phase shift of C: ^ can be uniquely identified. For the user of a high-speed data service, the user of the group uses the same code and the code phase offset ^ ^ of the code to encode the transmission. However, each of the users of the second group encodes its transmission with an additional code that is unique to each of the users of the second group. This allows the users of the second group to be orthogonal to each other while still maintaining the overall appearance as a single user of the first group.

C The code assigned to the user of the first group can be a common wafer rate or pseudo-random code. The code assigned to the user of the second group is typically an orthogonal code of -group only. The individual component of the terminal of the first group can be identified by scrambling a code having a unique phase offset of a selected long pseudo-random noise sequence. In a preferred embodiment, certain steps are taken to ensure proper operation of the communication between the users of the second group, the so-called "heartbeat". To be clear, a common code channel can be used as a synchronization channel. This allows, for example, the encoding mechanism to be transmitted in the case of a 10 丄 W730 maintaining the reverse link direction of the terminals of the second group. In another embodiment, the user can be assigned a special time slot for transmission, and because of the Π Π: Once again, the point is that the user of the first group is represented as a single-user for the user of the first group. ▲The principle of the invention allows design The tool code multi-path pick-up system for the mobility of the vehicle supports the soft hand-over operation of the orthogonal channel users on its reverse keyway to increase the reverse in the variable RF environment The resilience of link channel connections. Since an orthogonal link must be aligned in time to maintain the orthogonality from one user to the next, a sequential control loop from a single base station It is used. For two base stations in the direction of one reverse link, the 'orthogonality' is not easy to achieve because the relative propagation time delay complicates the time alignment between the two base stations. In order to use the soft handover operation The orthogonal reverse link has a primary reverse link base station that provides timing control and an auxiliary base station that can receive transmissions in an asynchronous manner. The specific conditions are defined to determine when to reassign by the primary The timing control of the base station to the secondary base station to facilitate the change of the orthogonal link from the first base station to the second base station is advantageous. When there is only one orthogonal base station, the second base station The received signal levels may be sufficient for reception. These signals can be used for diversification. This is especially useful in two mobility systems. 135.7730 Although only a single base station implements timing control, a better In the embodiment, both implement power control. This is because when the path loss of the non-orthogonal base station decreases as the user moves, the received power can become so strong that it begins to generate Excessive interference reduces the capacity of the auxiliary base station. Therefore, when the signal level is suitable for reception at the auxiliary base station, the command or The message is transmitted to the subscriber unit to reduce the power of the transmission. Although these commands affect the received power at the orthogonal base station and the non-orthogonal base station, the primary base station is reassigned from the primary base station to the secondary base station. The timing control of the station is appropriate. A typical case may be when the measured path loss for the non-orthogonal or auxiliary base station exceeds a certain margin, for example, i 〇 decibel. The routing system defines reverse link channelization in a non-orthogonal manner, which is implemented by defining a unique spreading code offset for each user of the reverse link. Orthogonal and non-orthogonal The backward compatibility can be achieved by orthogonal users for a primary base station and sharing the same expansion code. When the signals of these users are received at other base stations, the user signals are It is unlikely that the time alignment will be possible, but instead the user signals will all have a unique displacement and can be uniquely identified based on the code shift and the orthogonal code. These signals do not generate more interference than the standard non-orthogonal signals that are present in existing code division multiple access systems. Therefore, as with the soft handover operation implemented today, it can be implemented with orthogonal primary base stations and non-orthogonal auxiliary base stations. When the primary base station is reassigned so that the current sequence is from an auxiliary base station (ie, reverse link timing control handover operation 12 135.7730 has already occurred), its system may have a large Delay and code phase offset. The use of a conventional one-bit differential timing control loop may be too slow to be able to quickly get the ortho to the new base station when it is handed over. Thus, when the handover operation occurs, an overall timing adjustment command or message can be used to quickly realign the reverse link, where the overall timing adjustment can be absolute or relative. In the case of this timing, the subscriber unit is informed to implement a coarse timing adjustment' and in the case of the timing message, the subscriber unit automatically responds to the information in the timing message. The conditions for the timing control handover operation may be based on at least the following conditions: 1. The measurement value of an alternate path is greater than a threshold for a specified period; a threshold for a specified period 2. The measured value of the alternative path is greater than the current path: or the currently selected path is reduced to less than an absolute measurement 4 · candidate 4. The candidate path is more than one absolute measurement, one or more : where 'the measured value can be one or more of the following a. power; b. signal to noise ratio; c_ power variation value; d. signal to noise ratio variation value; The relative ratio of the measured values between the paths (ie, the orthogonal orthogonal link and the non-orthogonal link), the power control (or signal-to-noise ratio) of the orthogonal key (RL) Depending on the orthogonal (aligned) and non-orthogonal paths. The signal-to-noise ratio of the non-orthogonal paths is the same as the time when the same power control loop is listed as the subscriber unit. The base station associated with the non-orthogonal path relates to the power control ditech, plus il if a command is transmitted, instead of a message or a report, the target is awkward. “糸 can be the minimum value of the signal for each path. For example, if two paths are tracked and one requires power and the other and the right person ^, _ has too much power, the power is also applied to a soft handover function, where The 22 power is increased only if all commands or messages that provide power measurements require an increase. In the case of a non-orthogonal road intersection of a base station, the M1 Hantian case can be used as a case of a relative offset value. Less than before and with his path control power reduction W writes from non-orthogonal paths may need to be more s> 'power's command within the orthogonal region for a longer period of time. The domain in the base station can be processed in a manner as described above when the timing t @ is used. Tian: The sequence orthogonal system is controlled by a base station and is maintained by the positive control unit and the non-orthogonal base station. The orthogonal and non-orthogonal base stations are maintained = the control system * or the message system must be a, the commander containing the measured value is transmitted to the subscriber unit to transmit the 14 1357730 transmitter. The power control commands from each base station may be based on whether a quality measurement is achieved at each individual base station. The quality measurement can be a bit error rate, a signal-to-noise ratio, a received power or an interference density Ec/lo. Assuming that the measurement is satisfied, a command to reduce the transmission power is transmitted. Since the pick-up terminal receives commands from the two base stations, it will usually receive conflicting commands. When this occurs, the command is followed by the command to reduce power if a command to reduce power is generated. This can be implemented using a mutex (7 or (exClusive-OR) function; for example, only if both base stations are commanding to increase power, an increase in power is produced. If there is A base station command reduces the power, and a power reduction action is generated from the access terminal. The command for the plurality of bits is also the same, wherein the minimum increase in power or the maximum number of kills is [Embodiment] Figure 1 is a square Q block diagram of a code division multiple access communication system 1 'The code division multiple access communication system i 0 is made with a signal encoding mechanism In the organization, a first level logical channel is assigned a unique long code with a different code phase offset, and a second level logical channel is used by using a common code and a common code phase offset and a combination An additional encoding procedure for the unique orthogonal code of each channel is provided. In the following detailed description of one embodiment, the communication system 丄〇15 1357730 is described as The shared channel resource is a wireless channel or a radio frequency channel. However, it should be understood that the techniques described herein can be applied to implement shared access to other forms of media, such as telephone connections, electricity, brains. Network connections, cable connections, and access are other physical media that are allowed on a demand-driven basis. The system provides a first group of users 1 1 and a second group. 2 1 0 wireless communication. The first group of users 110 is typically an existing user of a mobile telephone device, such as a wireless handset i 13 - 丄, 丄 13_2 and/or The mobile phone 1 1 3 - k is disposed in the vehicle. The user 1 1 0 of the first group is mainly used in the network 1 of a voice mode, whereby the communication system is encoded as continuous communication. In a preferred embodiment, the transmissions of the users are forwarded by the subscriber unit 丄i 3 through the forward link 4 〇 RF channel and the reverse link 5 Q RF channel. The signals are in a central location. Being managed, The central location consists of a Base Transceiver Station (BTS) 120 and a Base Stati〇n controller (BSC) 1 2 3. Therefore, the use of the first group The 1 1 〇 is typically combined with the use of the 忒 Mobile User Unit Completion 3, the Base Transceiver Station 2 〇 and the Tuen-Technology Benefits 1 2 3 voice talks to communicate over the public switched telephone network 1 Connect the telephone link. The forward link 4 used by the users of the first group can be coded according to well-known digital action standards, which are defined by the Wanted Industry Association. (Telecommunication Industry 1357730

The standard specified by the Association, TIA). The forward link 4 includes the branching data channel i 4 2 and Lixian. 1 transmitting channel 1 4 1 and channel 1 4 1 , cold m VIII logical channel 1 4 4. The polling frequency "IL communication channel 1 4 2 is π +ί· ^ μ and other logical channels 144 system is used to make the m channel "1 4 4 use 1 η π ★" In the system of A, the user of the first group 1 1 编码 also encodes the transmission through the reverse link 5 0· according to the Is. Therefore, π , /, uses a reverse Several logical channels in the link 5 〇 direction, including

C il %L 4S ^ , one access channel 1 5 1, the poor channel 152, and other logic n, < 弭鸿道154. In the reverse link 50, the first group of .1, v users 1 1 〇 typically encode the signals with a ... L long code using different code phase offsets. The manner in which the encoded signals for the existing ones are used on the reverse link 50 is also known to those skilled in the art. The communication system 10 also includes a user of the second group. The user 2 i of the second group is typically a user requiring a high speed wireless data service. This also uses the method > 9 1 <

The system component of C user J1 includes a plurality of remotely disposed personal computer devices 212 - 丄, 2 ΐ 2 - 2, . . . 2 2 2 2 - h' · . . , 2 1 2 Subscriber Access Unit (SAU) 2 1 4 — 1,2 4 — 2,· . . '214-h Antenna 216-1,216-2 • ' 2 1 4 —1 and knot • · ·, 2 1 6 — h , · · _ : , 2 1 β — The equipment installed in the center contains a base station antenna 2 1 8 and a base station processor (Base Stati〇n

Processor, BSP) 2 2 0. The base station processor 2 2 is provided to 17 丄 is 7730 - an internet gateway 2 2 2 and by the internet gateway = junction, the internet gateway 2 2 2 is followed by Provide access - 'Feng Road, such as the Internet 2 2 4 and the network file server connected to the network 2 2 〇. The computer devices 2 丄 2 can transmit data to the network consuming device through the two-way chain implemented by the existing user 顺 the forward link 4 〇 and the reverse link 50. Receiving the information from the network feeding service 2 3 Q is, as shown, a point to: point: the road access wireless communication system, a given base 1 processor 2 2 The user access unit 214 (four) is provided in a manner similar to a mobile telephone communication network. In the current scenario, the radio frequency frequencies allocated for use by the user 1 1 0 of the first group are the same as the radio frequency frequencies allocated for use by the users 2 1 0 of the second group. The present invention is particularly concerned with how to allow a different coding structure to be used by the user 2 of the second group while generating the least interference for the use of the group. The computer devices 2 1 2 are typically laptop computers 2 丄 2 _ 1, handheld units 2 1 2 - h, Internet enabled mobile phones or a number of assistant-type computing devices. Each of the computer devices 2 1 2 is connected to an individual user access unit via a suitable line connection such as a link in the form of an Ethernet network. 2 1 4 » A user access unit 2 1 4 is allowed The computer device 2 1 2 coupled thereto passes through the base station processor 2 2 , the Internet gateway 2 18 2 2 and the Internet; > 9 /i. In the reverse link direction: connected to the network file (4) server 23 1 2 moves to the server 2 3 0, I 'for the & pass data moved by the computer devices 2, The computers are equipped with "a packet for the Internet Protocol Level to the user to receive the early 14th. Then, the user access unit 2 1 4 is connected to the appropriate wireless connection, frame, and code. Encapsulating the boxing of (4) (that is, the Ethernet is busy, after), the properly formatted wireless data packet is transmitted through

C antennas 2 1 6 and 2 1 8 and move through the radio frequency including the reverse link 5 〔 [where the base station of the β hai is at the base station, the base station processor 2 2 取出 then removes the radio frequency key frame The packet is reformatted in the form of an internet protocol and forwarded through the internet gateway 2 2 2 . The packet is then routed to its final destination via any number and/or any form of network such as the Internet 2 2 Transmission Control Protocol/Internet Protocol, such as the network. The server 2 3 0° data may also be transmitted from the steel path file server 203 to the computer devices 2 i 2 in the direction of a forward link 4 。. In this example, an Internet Protocol packet originating from the file server is moved through the Internet gateway 2 2 2 to reach the base station through the Internet gateway 2 2 2 Processor 2 2 0. The appropriate radio protocol framing and coding scheme is then added to the Internet Protocol packet. Then, the packet is moved through the antennas 2 16 and 2 1 8 to the intended receiving user access unit 2 1 4 , and the received user access unit 2 1 4 decodes the wireless packet formatted ' The packet is forwarded to the intended computer device 2 i 2 that implements the Internet Protocol layer 19 1357/30 processing. Therefore, a given computer device 2 1 2 and the file server 203 can be regarded as the end point of the duplex link of the Internet Protocol layer. Once a link is established, at the computer device 2 1 2 One of the user systems can thus transmit data to the file server 203 and receive data from the file finder 2300.

C. From the point of view of the user 2 1 0 of the second group, the reverse link 50 is a radio channel containing exactly many different forms of logic and/or entities 'containing an access channel 2 5 i , a plurality of circulation data channels 2 5 2 1, _ . · , 2 5 2 — t, and a maintenance channel 5 3 .

The reverse link access channel 2 5 i is used by the user access unit 2 4 to transmit a message to the base station processor 2 2 to request the flow of information channels. Grant them. Then, the designated circulation data channel 2 5 2 is carried by the user access unit 2丄4 to the base station processor 2 2 0. It should be appreciated that a given Internet Protocol layer link can actually have more than one tradable data channel assigned to it 2 2 2 . In addition, a maintenance channel 2 5 3 can carry information such as synchronization and power control to further provide information transmission over the reverse link 5 . Similarly, the user of the second group has a forward link 40. The forward link 40 includes a signaling channel 2 4 1, and a plurality of circulating data channels 2 4 2 - 1 '. . . , 2 4 2 — t, Road 2 4 3 . The transmitting channel 241 is used by the base station to notify not only the user access unit 2 1 4 directional and maintenance frequency 2 2 〇 link circulation 20 data channel 2 5 2 system has been assigned to the The user access unit 2 i 4 also notifies the user access unit 2 i 4 of the assigned data channel 2 5 2 in the reverse link direction. Then, (iv) the flow on the forward link 4 the poor channel 2 4 2 - 12 4 2 - t is used to carry the information information to the user access unit 2 1 4 by the base station processor 2 2 . In addition, the maintenance channel 2 4 3 carries the synchronization and power control information to the user access unit 2 1 4 on the forward link 4 . It should be understood that there is typically a circulation data channel 2 4 1 ^ which is more than the transmission channel 2 4 1 or the V 5 channel 2 4 3 ^ in the preferred embodiment, the logical forward links Channel 2 4丄, 2 4 2 ' 2 4 3, 2 5 1, 2 5 2 and 2 5 3 are by specifying a pseudo-random channel code for each pseudo-random channel. Therefore, the system is a so-called code division multiple access system in which 'multiple coded channels can use the same RF channel. The logic or code channel can also enter

C is divided or specified in the user access unit 2 of the plurality of activities. The sequence of signal processing operations is typically implemented to encode the individual reverse link 50 logical channels 5!, 5 2 and 5 3 . In the direction of the reverse link, the transmitter is one of the user access unit 2, and the receiver is the base station processor 2 2 〇. The preferred embodiment of the present invention is an existing user of a digitally-coded telephone system such as a coded multiple access system operating in accordance with the JS 9.5 B standard, also occurring on the reverse link 5 Implemented in the environment of 0. In an is_95B standard system, the reverse link code division multiple access channel signal is identified by specifying a non-orthogonal pseudo 21 1357730 machine noise code. Referring now to Figure 2, the channel coding procedure for the existing user 1 1 该 of the first group will be described in more detail. The first group of users includes, for example, a user of a digital code division multiple access mobile telephone system' which encodes the signal in accordance with the is_95b standard described above. Thus, the individual channel is identified by modulating the digitized speech signal of the input with a pseudorandom code sequence for each channel. Specifically, the channel encoding process takes one of the input digital signals 3 0 2 representing the transmitted information. A quadrature modulator 3 〇4 provides an in-phase (Ο and quadrature (q) signal paths to a pair of multipliers 3 〇 6 - 丨 and 3 0 6 - a short random noise code generator 3 The 〇5 series provides a short code (in this case, a 2 i 5 —丄 or 3 2 7 6 7 bits) length for the purpose of the spread spectrum. Therefore, the short code is typically "used" The same code for each logical channel of the first group 110. A second code modulation step is applied to the (i) and (by multiplying the two signal paths by an additional long pseudo-random code ' q) The signal is composed of a long code generator 3 〇7 and a long code multiplier 3 〇^丨 and ^ 〇8 q. The long code is used to uniquely identify the reverse link 5 〇 Each of the above users may be a very long code, which, for example, is repeated only once every 242-bits. The long code is applied at the short one-chip rate. For example, one bit of the long code is applied to each bit output by the short code modulation program, so that the spread of the step is not generated. The system is identified by applying a different 22 丄/730 phase offset of the pseudo-random noise long code to each user. It should be understood that for the first group of users 丄丄〇 In other words, there is no need to take other steps of synchronization. Specifically, these transmissions on the reverse chain 5 are designed to be asynchronous, and therefore do not need to be completely orthogonal. For a more detailed view of the channel coding procedure for the user of the second group, the second group 2 i Q, for example, is optimized according to one data transmission. a wireless data user that encodes a signal and formats the signals. The individual channels are identified by a pseudo-random noise code to modulate the input signal and the pseudo-random noise code system is used for the first The user of the group 1 1 〇 the same code sequence. However, as can be understood from the following, the channel of the second group 2 1 〇 夕 夕 蓄 蓄 蓄 蓄 蓄 蓄 蓄 系 系 系 系 系 系 系 诸如 诸如 诸如Walsh) The specific orthogonal code of the code is uniquely identified. Clearly speaking, it is used for the second group, and User-based channel encoding program 21 uses a square of the input digital

C 〇 2 ' and a plurality of codes generated by a short code generator 4 〇 5, a Walsh code, and a long code generator 4 〇 7 are applied. As a first step, a first positive parent modulator 404 provides an in-phase (i) and orthogonal () sister-, q) loops to a first pair of multipliers 4 6 -1 and 4 〇6 —q. The short pseudo-random random code generator 4 〇5 provides a short code 'in this example, a 21' 5 length code used for the spread spectrum purpose: therefore 'the short code system is used for the first group The short pseudo-random codes of each of the channels in group 1 i are the same. In the 5th program, the first '-牛牛一' is applied to a 12-1^419 generated by the zinc Walsh 23 丄 357730 code generator 4 4 3 by the multiplier 4 Pinch and complete 4^ apply orthogonal codes to each of the in-phase and quadrature signals and uniquely identify such a channel. A code is different from the last step of the program. The code length is applied to (i, fen r, and the first-pseudo-random stalker 4074). Therefore, the long code is produced. 7 is a suitable phase multiplier to the individual phase multiplier 4 〇 8. The long code is non-only-identified to identify the second group of users of the first group 丄i0 The same long code -. Therefore, Xingqun monument 曰 m 0 this example and Lu., which is with a short, :: film rate of the same domain, so that (4) long code - a bit: Also added to each bit output by the short (four) variable program. This side = 'all of the user groups in the second group 2丄〇 present the first -: a single one of the group 110 There is a user, however, in the case where the second group of electric users has been (4) only the orthogonal Walsh code and the user of the first group 21〇 can be uniquely identified. When the instance is implemented on a reverse link 5, additional information must be provided to maintain the orthogonality between the different users of the second group 2 i. _ a maintenance channel 2 4 3 system is thus included in the forward link 40. The maintenance or "heartbeat, the channel provides synchronization information and / or other timing signals, so that the distance is only 2 The transmission can be properly synchronized, and the maintenance channel can be divided into time slots. For more details of the format of the downstream link maintenance channel 2 4 3 24 1357730, reference can be made to US Patent Application No. 9 / 7 7 5, 3 〇 5, filed on February 1, 2001, entitled "Maintenance Link for Active/Alternate Request Channels", the case This is incorporated herein by reference. It should be appreciated that certain infrastructures may thus be shared by users of the second group and users of the first group. For example, although The antennas 2 1 8 and 1 丄 8 are shown as separate, and the base station antennas in Fig. 1 may actually be a shared antenna. Similarly, the positions for the antennas may thus be the same. Allowing the user of the second group to share the established The location of the device and entity used by the user 110 is greatly simplified. This greatly simplifies the configuration of the wireless infrastructure for the user 210 of the new group, for example. New location and new antenna location The system diagram does not need to be established. Figure 4 is a network diagram similar to the first circle. On the wireless network 40 巾 ' '-------- base station processor 220-1 and the second base station processor 220-2 (collectively referred to as 22〇) provides access to other networks (such as the Internet or public switched telephone network) for -2 接 access terminals 213 - 1, 21 - 3. These ^ ^ ^ 1 1 3 - 1 , 1 1 3 - 2 ^ 1 _ base, station processor 2 2 ◦ also (4) for non-existing terminal 2 13 channel and provide code division multiple access reverse chain The soft handover operation of the road allows the existing handheld unit 113 to use the reverse link to access the terminal 21 and the handheld unit in a typical manner! " is interchangeably referred to as domain early 70 or user access unit (SAU). 25 1357730 An existing "domain unit" refers to a domain that is not equipped with a positive-parent code that applies a unique-------------------------------------------------- Equipped with a domain unit that applies a unique code of -f to the other, the domain unit shares a common reverse link channel modulation procedure. The base station processor 220 provides a soft handover operation by selectively reassigning the timing control of the reverse link channel according to conditions. In a preferred embodiment, the base stations, ^^^J 2 提 provide power control feedback to the domain units. Continuing to refer to FIG. 7, the antenna tower 218 is first and second timing diagrams 4G3-1 and 4Q3-2 (collectively referred to as 4〇3) 'the first and second timing diagrams 4 ◦ 3 — And 4 ◦ 3 - 2 show the timing of the reverse link signals for each of the domain units communicating with the individual base station processor 220. These timing diagrams 4 〇 3 show the difference between the time aligned orthogonal reverse link channels and the non-time aligned orthogonal or non-orthogonal channels. As described above, each of the non-existing access terminals 2 i 3 sharing a common reverse link channel has an additional encoding procedure to add a unique orthogonal code, which is used to distinguish the opposite. The reverse link signal to the link signal and other network devices using the common reverse link channel. For the purposes of discussion, it is assumed that (i) the access terminals 2 are sharing a common reverse link orthogonal channel and (ii) the three handheld units are in the opposite direction. The first and second base station processing 26 is used in the first timing diagram 403-1.

/ /JU ^ 2 2 Ο — 1 传一念ra j ^ 牟 Privately use an alignment controller (not shown) to align the reverse chain of the terminal in the base processor 2 2 〇 1 control The timing of the channel. In this case, the first base station processor 2 2 〇 -1 controls the first and second domain units 2 1 3 - 1 and 2 1 3 - 2 indicated as 4 2 5 and 4 2 5 _ 2 The timing of the reverse link logic cores 420-1 and 420-2. The reverse link channel with the reverse link that is time aligned (also the phase 'bit aligned common long code) is referred to as the "local" orthogonal channel 4 1 0. The third access terminal 2丄3-3, which also communicates with the first base station to handle the stealing 2 2 0-1, does not have the reverse direction with the first and second access terminals 2丄3_1 and 2丄3_2. The link logic channel is time aligned with its reverse link logic channel 4 2 〇—3 (425 — 3). The third access terminal 213_3 is such that its reverse link channel 4 2 〇 3 is controlled by the second base station processor 2 2 〜 2 . Therefore 'for the inverse of the third domain unit 2 1 3_3

The timing of the link logic channel 420-3 (425-3) is displayed by the local orthogonal channel 4 2 5 - 1 and 4 2 5 - 2 from the first ¥4 4 3 - 1 To have an offset. G. In the second timing diagram 402-3, a wireless network device 2 1 3 — 1, 2 13-3, 113 — 1 ' 113 communicating with the second base station processor 2 2 2 2 — 2 and 113 — 3 Reverse Key Logic Channels 420 — 1, 420~3, 420 — 4, .4 2 0 — 5 and 4 2 〇 — 6 are respectively marked by vertical marks 4 2 5 — 1, 4 25 — 3, 425 — 4, 425 — 5 and 425 — 6. The second base station processor 2 2 0 - 2 controls the third access terminal 27 1357730 213 - 3 reverse orthogonal link 420 - 3 (425 - 3) ^ but does not control other access terminals ^^ and ^ 任任任: one of the timing. Thus, as can be expected, the reverse link logic, track 420 (425) is phase shifted from the other reverse link logical channel at the second base station processor 22〇2, as indicated In § first timing diagram 403-2. The three reverse link channels 42ς_ι 25 5 and 425-6 are fairly close in time to the second base station processor 22〇2 and are referred to as "external" tracks 4 1 R. u The external orthogonal channels 4i5 are not truly orthogonal, and the channels j do not have orthogonal codes for identifying each other on a common and inverted link channel. Therefore, if the external orthogonal channels 4 i 5 are aligned, they will be poorly interfaced with each other at the second base station processor 2 2 2-2. In a particular case, each of the base station processors 2 200 can support local orthogonal channels 4 丄〇 and external or non-orthogonal channels 4 i 5 . This situation indicates that a combination of non-existing and existing domain units can be used within the same unit area. In the existing orthogonal technology, when a domain unit such as the terminal terminals (for example, '2丄3 _ 3 ) is moved to a unit area of a first base station processor 220-1 When the second base station processor 220-2 has a unit area, there is no soft handover operation technique on the reverse link. The reverse link soft handover operation technique disclosed herein (i) provides communication from a non-existing wireless network device 2 1 3 to a plurality of base station processors 22 in a reverse link, (π) implementation Timing 28 135.7730 and force rate control (described below), and (iH) which of the plurality of base station processors 2 2 is coordinated according to the conditions of the reference figure, which is a reverse link for one domain unit The "master" of the timing control is to coordinate one of the plurality of base station processors 2 2 to control one: 疋 pick up the timing of the reverse link channel of the terminal 2 1 3, the given. The terminal 2 1 3 can be moved from the unit area to the other unit without losing the connection of the reverse link. The main technique of the present invention = includes one for fast orthogonal timing alignment Technique (also, adjusting the phase of the long code of the common logical channel for the access terminals 2 1 3 such that the common reverse link channel and the common reverse link channel of the other access terminals 2 i 3 Received in time, or orthogonal to each other. The base station processor 220 of the timing control of the link channel confirms that the overall offset of the timing of the reverse link logical channel of the domain unit is the reverse of other domains sharing the same reverse link logical channel. a function of the timing of the link logical channel. The overall offset is transmitted to the domain unit in the form of an offset command or an offset message. According to the overall offset information, the domain unit is based on the total Performing a coarse timing adjustment of the logical channel with timing offset. After the coarse timing adjustment, the coarse timing adjustment of the reverse link logical channel 4 2 can be adjusted according to the base station processor 2 2 A subtle timing adjustment is then performed to measure the subtle timing offset. Figure 5 is a base station that includes a soft handover operation that provides a code division multiple access reverse link using an orthogonal channel structure. a block diagram of the processor 2 2 0_1. The base station processor 22 passes through the day 29 1357730

The C-line tower 2 1 8 receives the reverse link channel from the domain units 丄丄3 and 2丄3. A receiving device 5 接收 5 that receives a reverse link channel from a given domain unit 2 传送 3 transmits the received signal to an orthogonal timing controller 5 : L 〇 . The quadrature timing controller 5 丄〇 or the equal unit S S is tolerant of an overall timing offset of 3 for the reverse link channel from the other domain units sharing the same reverse link logical channel. The overall timing offset 5; L 3 can be an absolute measurement value transmitted to the given domain unit 2丄3 in the form of a command, or can be a relative measurement Wei, and The form is transmitted back to the given domain unit 2 1 3, and the given domain unit 2丄3 uses an additional procedure to confirm the timing offset # of the reverse link signal (ie, phase adjustment). Combinations of extinction measurements and relative measurements can also be used. Figure 6A is a schematic diagram of a network of the first base station processor and the second base station processor 2 2 0-2. The base station processors 2 2 include individual alignment controllers 5丄5. The alignment controllers 515 are used by the base station processor 220;; or = which base station processor 22 is controlled to control the reverse links of the domain units 2 1 3 4 2 〇 This timing alignment. Single-click to confirm which base station processor 22 should control the timing alignment of the fields 1 3 1 'The alignment controller 5 1 5 can be leaf-lifted and the domain unit 2 1 3 —] pull # The measured value associated with the signal received by rv 1 (eg 'signal to noise ratio'). - A given alignment controller $ 直仙斜. 隹 (4) 5 1 5 Series can send a message to "He is aligned with the controller 5 i 5, with its Danta base station processor 2 2 〇 30 1357730 ^ The associated base station associated with the alignment controller 5 1 5 will control the reverse keyway of the domain unit 2"; or the given alignment controller 5 1 5 can issue = a command or message to another align controller 5 i 5 , such as the base station processor 22 ◦, the alignment controller 5 ” = inform the second base station processor 2 2 〇 2 The timing of the reverse link channel of the domain unit 1 3 - 1 should be controlled. Other negotiation configurations may occur in the material alignment (4) Η 1 5 H whichever is determined - the base station processor 220 will control the pair of the domain unit 213 Once the base station processor 220 has been commanded or has been selected to control the timing of the reverse link channel, the quadrature timing controller 5 1 is used to determine the overall timing offset. , as described above for the transfer operation using the system. & - Figure 6B is the alignment controller 5 5 is a schematic diagram of a wireless network configured as part of the domain unit 2 1 3 - 1 , in this case, incorporated in the user access unit 214-1. Alternatively, the alignment controller 5 The 1 5 series may be included in the personal computer device; in the work 2-1, or as a separate unit electrically connected to the user access unit 2 1 4-1 or the personal computer device. In the configuration, the alignment controller 515 provides a command or message to the user access unit at the domain unit 21 3 -1 "-1" to cause the domain unit 2" to respond to the processor 220. — 坌 υ 者 The first base station processor 22〇-2 receives the timing control signal. 31 1357730 FIG. 6C is a schematic diagram of the alignment controller 5 15 is configured in the wireless network 4 of the base station controller 123. In this case, the alignment controller 515 can be Each of the quadrature timing controllers 510 receives the information from the first base station processor 22 - the base station processor 2 2 0 - 2 to determine which base should be controlled by the processor 2 20 The timing of the orthogonal and reverse link channels for the domain unit 2 i 3 — ^. The alignment controller 5丄5 is configured to: determine the decision based on a number of factors, such as The signal-to-noise ratio of the reverse link signal at each base station processor 220. The alignment controller 515 can use commands or messages to indicate which base station processor 220 will control the domain. The timing of the reverse link of the unit 213_丄. In any case, the selected base station processor 220 can issue a command or message to the domain unit 2丄3-1' Notifying the base station processor 220 to control the timing of the orthogonal and reverse link channels. It should be understood Yes, the alignment controller 515 can also understand different points of view, and which base station controller 2 2 实施 will control the timing of the reverse link channel to maximize the base station processors The benefit of the difference between 2 2 0. Figure 7 is a flow chart of the soft handover method of the code division multiple access orthogonal reverse link according to the present invention. In this example, the first base station The processor 2 2 0 1 executes a first program 7 〇〇, and the access terminal 2 1 3 executes a second program 735. After the start of step 7 〇 5 in the base station processor program 700, The base station processor program 700 is intended to receive a reverse link signal from the access terminal 213 32 1357730 in step 710. In step 740 after the start of the access terminal program 735, the The access terminal 213 transmits a reverse link signal having a unique orthogonal code identical to the reverse link signal of the other access terminals 213 on the reverse link channel in step 745. The base station processes The program 700 receives the reverse link signal in step 71〇 and Continuing to step 7丄5, in step 7i5, the base station processor program 700 determines whether to identify the access terminal 2 belonging to the orthogonal reverse link group in the reverse link signal. The long code of 3 is the same as the long code of other access terminals 2丄3 in the terminal group of the same terminal as in the second and third. The long codes are not specific, specific and positive. The code such as the Walsh code is aligned with the base station processor program 7. When the long codes are in phase, the reverse link signal is unique and used for identification. If the long code in the reverse link signal is in the same phase as the other reverse link of the other access terminal 213 in the same mutual positive i:: way group ( That is, the time is aligned, then the base station processes; the: 0 0 system ends at step 7 3 〇. If the long code in the reverse link signal is out of phase with the long code of the other base station two reverse link signals in the same mutual link group, then the location The stealing sequence 7 continues until the decision of the overall timing offset '20, which is as described above with reference to Figure 5 in the implementation of the controller 5 10 . The base station processor program 7 〇 In this step, the base station processes crying 22 Ω / to step 725, and transmits the overall timing offset to the access in the form of a command or message 33 1357730纨7 ', 嘀213. In step 5, the access terminal program 735 receives the overall timing offset and adjusts the timing of the reverse link signal. The access terminal program 7 3 5 ends at step 755, and the base station processor program * & the path sequence 7 0 0 is tied to step 730. Figure 8 is when the first base station processor "2" and the second US platform processor 2 2 Ό 2 interact with the access terminal 2 1 VII and 细^1^

C,. The first base station processor 2 20 executes a program δ 控制 that controls the timing of the reverse link of the terminal 2 1 3 . The second base station processor 22Q_2 executes a program that provides a process for not controlling the timing of the reverse link of the access terminal 2.13. The terminal 2 1 3 executes its own program. 8 3 3. The program 8j is capable of receiving feedback, performing adjustments on the reverse link signal in a coarse amount and a small amount, and adjusting the power level based on the power level feedback received by the base station processor 2 2 〇 The access terminal 2 1 3 transmits signals received by the first base station processor 2 2 〇 1 and the second base station processor 2 2 ( 2 (step 8 3 6 ). In this example, it is assumed that the first base station processes the timing that the previous system has been selected by the access terminal 2丄3 to control the reverse link signal. Therefore, the first base station processor 2 1 receives the reverse link orthogonal signal (step 8 〇 3 ) from the access terminal 2 2 3 , and the reverse links are orthogonal The signal is aligned with other reverse link signals sharing the same reverse link channel or with other reverse 34 2: signals from other terminals that use the same reverse link channel. In step 8〇6, the first base station processor 2 VIII-1 determines whether the signal signal from the terminal 2 i 3 is a timing condition or standard. If the signal does not meet the timing bar! The program 8 QQ determines to feedback back to the access terminal 2 1 to offset the overall timing of the signal with other signals using the same code. In step 8 3 9 'feedback is received by the receiving terminal 2 " If the signal conforms to the timing condition or standard, then the program 8 proceeds to step 8 0 9, where the program 8〇〇 It is determined whether a fine timing offset system has a need of 1 (4), (4) program 8 is transmitted to the access terminal 2! 3 which is a fine timing offset and is tied to the program 8 3 3 Step 8 3 9 is received by the receiving terminal 2 1 . If a fine timing offset is not required, then the program 8 proceeds to step 8 1 5 />; in step 815, 'the first base station processor 220 is 丄, ', whether it is terminated by the connection The power level of the signal transmitted by the cake 2 1 3 should be adjusted. Similarly, in step 815, the second base station processing ^2〇-2 also determines whether it should cause the power level adjustment of the access terminal 2i3. In the above case, the power level offset is transmitted to the access terminal 2 i 3 in the forward link. If the power level adjustment is not required, refer to the first base station processor program 8 and the second base station processor program 8 〇 2 'individual sequence number to proceed to step 8 1 8 'where __ The decision as to whether or not the timing control soft handover operation should be initialized is implemented. The timing control soft intersection, the operation system can be (4) the following conditions - (4) combined and initialized: 35 1357730 for a pre-specified (a) - the alternative path of the measured value is more than - the threshold of the period; The specified period exceeds the relative (b) the measured value of an alternate path is at a threshold of the current path; below; and wherein the measurement (4) the selected path is down to an absolute value (d) candidate The path is more than one absolute measurement, and the value can be one or more of the following: (a) power; (b) signal-to-noise ratio; (c) power variation; (d) signal-to-noise ratio The variation value; or (e) the relative ratio power of the two paths. If the initialization of the timing control handover operation has been initiated, then in step 8 2, the base station processor 2 2 - the system updates the other base station processor and the base station controller 2 3 . The access terminal 2 can also be informed of the timing control handover operation. If the timing control system has not been softly handed over, the programs 8 8 and 8 〇 2 are passed to step 8 24 ' in step 824, in case another base station processor, base station controller 123 or The terminal 2!3 will control the timing of the reverse link signal to transmit a command or message to the base station processor 220, and then the decision to release or accept the timing control is implemented. If the base station processes If the system releases or accepts the responsibility of timing control, then the programs 8 0 〇 and 802 go to step 8 3 〇 to update the system's operating parameters'. Otherwise, the programs 8 〇〇 and 8 〇 2 Go back to 36 1357730 to step 8 Ο 3 to receive the signal from the receiving terminal 2 i 3 . The program 8 3 3 executed by the access terminal 213 receives the feedback in step 839 and processes the feedback as described below. First, if no feedback is received, in this embodiment, the program 8 3 3 is looped back in step 8 3 9 for feedback. If the feedback is received, the program proceeds to step 8 4 2 to determine if a coarse timing adjustment command or message has been received. If a coarse timing adjustment command or message has been received, then the coarse timing adjustment is performed in step 8.5. It should be understood that the coarse timing adjustment can be an absolute or relative measurement, as described above. In step 840, the access terminal 2 Γ 3 determines whether a fine timing adjustment command or message has been received. If a timing adjustment command or message system has been received, a fine timing adjustment is performed in step 851. It should be understood that this fine timing adjustment is typically a differential command or message. After this fine timing adjustment, the program 8 3 3 determines whether a power level adjustment command has been received. If a power level adjustment command or a message has been received, then in step 857, the terminal is accessed? η ^ skill adjusts the power level ′′, after adjusting for timing or power, in step 8.6, the operating parameters of the access terminal 2 1 3 are updated. After updating the system parameters, the program 8 3 3 is repeated in step 8 3 9 and waits for feedback from one or more base station processors 2 2 0 . Figure 9 is a program 9 by the base station processor 2 2 and the terminal terminal 37 1357730. . And a 92° flow chart ’ for adjusting the power level of the reverse key signal processed by the base station by the receiving terminal 2 1 q s . .η η Process 〇 〇 〇 〇 〇〇 〇〇 〇〇 〇〇 〇〇 〇〇 〇〇 〇〇 〇〇 〇〇 〇〇 〇〇 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = The access terminal 2 1 3 is changed to the power level of the reverse link signal alignment key signal. If it is desired to change the "" bit, then the feedback is in the form of a command or message Γ: the access terminal 2 1 3 . The base station processor 22 is circulated in the program 9 and ends at step 915. "Through/from the access terminal 2 1 3 begins in step 9 2 5. - and 2 = 9 9 is received" then the program 9 2 is performed ^ 935, in step 9 In 35, the decision of all base station processors 2: 0U-power level increase is implemented. If the ground station processor 2 2 requests a power level increase, the program is performed on the 9th and 20th lines. Go to step 94, in step 94, the end of the connection

C k 2 1 3 increases the number of reverse links as much as the lowest increase feedback佼

The power level of the ring. If not all of the base station processors 2 2 request the L 7 rate increase, then in step 945, the decision on whether or not the base station 220 is requesting - the power level reduction is applied. If at least the base station processor 2 2 is requesting - power level reduction & then in step 950 'the access terminal 213 is reduced by as many power levels as the lowest reduction feedback. The program 9 2 〇 is at the end of step 9.5 5 or can only loop back to step 9 3 〇 to receive a power in the same temple. Level feedback 38 1357730

C Although the power control of the orthogonal and non-orthogonal base stations is maintained, the command or measurement value can be transmitted to the user base transmitter through a forward key (ie, the access terminal 2 ). The power control command from each base station processor 220 can be based on whether or not the signal is measured, and the quality measurement is determined by each individual base station processor 2 2 〇 ‘ . The signal quality measurement can be a bit error rate 'signal to noise ratio, received power or interference density (four). . Assuming that the measured value is satisfied, then a command to reduce the transmission power is transmitted. Because the access terminal 2 1 3 receives commands from the two base station processors 2 2, typically it will receive conflicting commands. When this occurs, if the command to reduce power is generated, the access terminal 2 1.3 follows the command to reduce the power. This can be implemented using a mutually exclusive or (exch^ve-OR) function; for example, an action to increase power is generated only if both base station processors are 208 to increase power. . If there is a base station processor 2 2 system command to reduce the power 'then' a reduced power action system. This is also the same for a plurality of bits, where the smallest increase in power or the maximum number of kills is followed. Although the present invention has been shown and described with respect to the preferred embodiments of the present invention, it should be understood by those skilled in the art that Changes in form and detail can be implemented. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the detailed description of the preferred embodiments of the invention. The components are denoted by the same elements in the different drawings. The drawings are not necessarily to scale and emphasis, but rather to illustrate the principles of the invention. .. Figure 1 is a block diagram of a wireless communication system providing orthogonal and non-orthogonal links;

C Figure 2 is a square diagram of the circuit employed by the access terminal of Figure 1;

Figure 3 is a block diagram of a circuit further including a code generator of Figure 2, the code generator for operating on its orthogonal links; K ▲ Figure 4 is a third diagram a block diagram of the wireless communication system, the wireless communication system having a plurality of domains using orthogonal and non-orthogonal links, FIG. 5 is a fourth diagram

—^ ^ w m 7T

C. Base 2: The processor has a smear of smear to control the timing of the access terminal on the 6-year-old parent link; Figure 6A has a processor controller located at the base station. Figure 4 is a network diagram of the network; Figure 6B is a network diagram with a network located in Figure 4 of the domain unit; Fengkong is in a 6 C diagram with one located at a base The network diagram of the network of Figure 4 of the controller of the station controller; 40 of the 40th diagram is a base terminal station and the access terminal of Figure 4, so that the signals are orthogonal to each other. Flowchart of the processor; Figures 8A and 8B are flowcharts of a processor that can be used by the base terminal station and the access terminal in the multi-unit environment of Figure 4 for soft handover operations; The 9A and 9B diagrams are flow diagrams of processors that can be used by the base terminations and access terminals of Figure i for power control. (2) Component Representation Symbol 10 Code Division Multiple Access Communication System 40 Forward Link 50 Reverse Link 51, 52 Logical Channel 53 Maintenance Channel 110 Users of the first group 113-1, 113-2 and 113 -3 Handheld unit 113-k Mobile phone 113 in the vehicle User unit 118 Base station antenna 120 Base transceiver station 123 Base station controller 124 Public switched telephone network 141 Signaling channel 142 Circulating data channel 144 Logical channel 1357730 151 152 154 210 212-1 212-2 212- h 212-1 213 213- 1,213-2,213-3 214- 1 214-2 214-h 214-1 216-1 216-2 216-h 216-1 218 220 220-1 220-2 222 224 Access Channel Circulation Data Channel Logic Channel Second Group User PC Device Personal Computer Device Personal Computer Device Personal Computer Device Access Terminal Access Terminal Remote User Access Unit Remote User Access Unit Remote user access unit remote user access unit combined antenna combined antenna combined antenna base station antenna base station processor first base station processor second base station processor internet gateway Internet

42 1357730 230 Network File Server 240 User Access Unit 241 Signal Channels 242-1, 242-t Circulation Data Channel 243 Maintenance Channel 251 Access Channels 252-1, 252-t Circulation Data Channels 252 and 253 Logic_Link Channels 302 Input digital signal 304. Quadrature_variant 305 pseudo random noise code generator 306-i and 306-q multiplier 307 long code generator 308-i and 308-q long code buffer 400 wireless network 402 input Digital Signal 404 Quadrature Modulator 405 Short Code Generator 406-i and 406-q First Pair Multiplier 407 Long Code Generator 408-i Non-Phase Multiplier 408-q Orthogonal Multiplier 410 Local Orthogonal Channel 413 Walsh Code Generator

43 1357730 415 External Orthogonal Channel 420-1 Reverse Link Logic Channel 420-2 Reverse Link Logic Channel 420-3 Reverse Link Logic Channel 420-4 Reverse Link Logic Channel 420-5 Reverse Chain Path 420-6 Reverse Link Logic Channels 425-1 and 425-2 Local Orthogonal Channels 425-1, 425-5, and 425-6 Reverse Link Channel 505 Receiver 510 Quadrature Timing Controller 513 Overall timing offset 515 alignment controller

44

Claims (1)

Patent application scope: 1. A wireless communication system for aligning coded multiple access reverse link signals, comprising: a first base station having (I) one a first receiver for receiving a signal having a unique orthogonal code and a (π) first timing control device through a first reverse keyway, Connected to the receiver, the first timing controller is capable of determining an overall timing offset of the signal such that the signal is substantially from a signal from at least one other user on the first reverse link Orthogonal to each other; a second base station having (I) a second receiver for receiving a second reverse 6 link simultaneously by a given subscriber unit a signal of a unique orthogonal code and (ii) a second timing controller coupled to the second receiver, the second timing controller determining an overall timing offset of the signal to enable the Signal and the second reverse link The signals from at least one other user are substantially orthogonal to each other; and the π' alignment controllers are orthogonal to the first timing control and the first timing controller (1) Causing the signal to be aligned with the at least one other signal used by the first reverse link or the reverse link, and (ii) to allow the signal to be reversed by the /, The at least one other subscriber unit on the link is orthogonally offset. The s, ... water communication system for aligning the code division multiple access to the reverse key signal, in order to respond to the specified negative 45-square orthogonal alignment, 兮 first pull A timing command: the sequencer and the second timing controller are operative to report the timing offset. The form of ~ is reported to the given subscriber unit. The wireless communication system for aligning the code division multiple access reverse link signals in item 1 of the patent scope, wherein (1): receiving the controller The first base station that is determined by the first base to encode the signal includes a second power suppressor: (Μ the second base station ice control ^, to determine the second A second power unit r of the flat coded signal at the base station, wherein each power control power command or a power message provides feedback of the power level to the given subscriber unit. For example, please refer to the wireless communication system of the third item for the reverse link signal, which is obtained by the first power controller and the second power controller. The power level feedback causes the given subscriber unit to increase its power level according to the lesser of the two feedback signals, and reduces the power level according to the lesser of the two feedback signals. ·If you apply for the scope of patents The wireless communication system for aligning the coded multiple access reverse link signals, the first base station includes the alignment controller and initializing the timing control handover operation. The wireless communication system for aligning the code division multiple access reverse link signals, wherein the second base station includes the alignment controller and initializing the timing control handover operation. The patent scope 苐1 is used for aligning the code division multiple access 46 1357730 reverse link signal wireless communication system ', the user should align the controller and initiate the timing control handover operation', 8 · For example, the wireless communication system for the reverse link signal is used in the first item of the patent scope, and the connection is made to the base station controller of the base station and the second base station. The initialization timing control handover operation. The system includes the alignment control. 9. The wireless communication system for aligning the code division multiple access reverse link signals is used in the first item of the patent. The quasi-controller is the starting material (4) (4) for 1 'the timing control transfer Depending on the condition: U) a measurement of the transmission path between the user's military unit and the base station that does not control the timing is greater than a threshold for a predetermined period of time (b) And the measurement value of the transmission path between the base station that does not control the timing is compared with the transmission path between the base station that controls the timing and the transmission path of the user sequence s over a predetermined period of time - a threshold value, (7) a measurement value of a transmission path between the base station and the subscriber unit controlling the timing, falling below an absolute measurement value & (d) a base station not controlling the timing and the A measurement of the transmission path between the subscriber units is more than an absolute measurement. 1 0. For the wireless communication system for aligning the coded multiple access reverse link signals according to the scope of claim 9 Wherein the measured value comprises at least one of: (a) power '(1) signal to noise ratio, (c) power variation value' (e) between the given subscriber unit and the first and second base stations Between an orthogonal alignment path and a non-orthogonal alignment path : (丨) power, (ii) signal-to-noise ratio, (out) power variation, or (iv) 1357730. signal to noise ratio variability, (f) bit error rate, and (8) The energy per wafer divided by the interference density (Ec/lo). 1 1. A method for aligning a reverse link signal of a code division multiple access in a wireless communication system. The method comprises the steps of: transmitting a first object by a first base station (i) Receiving, by the link, a signal having a unique orthogonal code from a given subscriber unit, and (η) determining an overall timing offset of the signal to cause the signal to be on the first reverse link The signals from at least one other user are substantially orthogonal to each other; the second base station (i) simultaneously receives a unique orthogonal code from a given subscriber unit through a second reverse link. The signal, and (ii) determine an overall timing offset of the signal to cause the signal to follow. The signals from at least one other user on the first reverse link are substantially orthogonal to each other; and (Ο) the signal is caused by the at least one other on the first reverse link or the second reverse link The signal from the user is orthogonally aligned, and (ii) the signal is allowed to be orthogonally offset from the at least one other subscriber unit on the other reverse link. 1 2 · as claimed in claim 1 The method for aligning a coded multiple access reverse link signal in a wireless communication system, wherein the first timing controller and the second timing control are in response to being designated to be responsible for orthogonal alignment The device reports the timing offset to the given subscriber unit in the form of a timing command or a timing message. 1 3 · As in the patent application, item 11 is used to align more points in the wireless communication system 48 1357730 The method for receiving the reverse link signal, wherein the second base station includes a first power controller to determine a first power level of the coded signal at the second location , and (3) second: platform system a second power controller is included to determine a second power level of the coded signal at the base station, wherein the mother power controller provides the power command or a power message The power quasi mosquitoes are fed back to the given subscriber unit. ~ 1 4 . The method of claim 3, in the wireless communication system for aligning the reverse link signal of the code division multiple access, wherein the first power controller and the second The power level feedback from the power controller causes the given subscriber unit to increase its power level according to the lesser of the two feedback signals, and reduce its power level according to the two feedbacks. And a method for aligning a coded multiple access reverse link signal in a wireless communication system, wherein the first base station includes the alignment controller and Initiating a timing control handover operation. The method for aligning a reverse link signal of a code division multiple access in a wireless communication system according to the scope of the patent application, wherein the first base station The method includes the alignment controller and the initialization timing control handover operation. The method for aligning the reverse link signals of the code division multiple access in the wireless communication system as claimed in claim 1 Wherein, the user order 7L includes the alignment controller and the initialization timing control handover operation 49 135, 7730 18 · as claimed in claim 11 for aligning the coded multiple connections in the wireless communication system A method of taking a reverse link signal, wherein the __ base station controllers connected to the first base station and the second base station include the alignment controller and initiate timing control handover operations. 19. The method of claim 11, wherein the alignment controller initiates the timing control handover operation for aligning a coded multiple access reverse link signal in a wireless communication system. Wherein the timing control handover operation is based on at least one of the following conditions: (a) a measurement of the transmission path between the subscriber unit and the base station not controlling the timing is more than one for a predetermined period of time a threshold value, (b) a measurement value of a transmission path between the subscriber unit and a base station not controlling the timing, and a measurement value of a transmission path between the base station and the subscriber unit controlling the timing Relating to a threshold value for a predetermined period of time, (c) one measurement of the transmission path between the base station and the subscriber unit controlling the timing falls below an absolute measurement value, and (d) does not control One of the transmission paths between the base station of the sequence and the user I element exceeds an absolute measurement value. 20. The method of claim 19, wherein the measured value is included in the helmet line system for aligning the reverse link signal of the code division multiple access, wherein the measurement value comprises at least one of the following: (a) Power, (b) weihao pair: signal ratio, 变异 power variation value, (6) orthogonal alignment path and non-orthogonal alignment path between the given subscriber unit and the first and second base stations Between: (i) power '(ii) signal to noise ratio, (out) power: 50 1357730 variation, or (iv). signal to noise ratio variation value, (f) bit The error rate, and (g) divided by the interference density (Ec/10) of the energy per wafer. The wireless communication system for aligning the coded multiple access reverse link signals according to item 3 of the patent application scope, wherein the power level by the first power controller and the second power controller The feedback causes the given subscriber unit to increase its power level according to the lesser of the two feedback signals, and reduce the power level according to the lesser of the two feedback signals. 21 G base stations for aligning the coded multiple access reverse link channels, the base station comprising: an orthogonal channel receiver for receiving a user through a reverse link An orthogonally encoded signal from the unit; and an %-sequence controller for causing a coarse adjustment to the timing of the encoded signal in response to a command or message to reassign the previous A base station performs timing control of the subscriber unit for timing control. 2 2 - A method for aligning a coded multiple access reverse G link channel in a base station, the method comprising: receiving an orthogonality from a subscriber unit over a reverse link The encoded signal; and in response to a command or message, reassigning the timing control of the subscriber unit previously controlled by another base station, determining the overall timing offset of the encoded signal. The reverse link encodes a coarse timing adjustment of the timing of the signal. 51 1357730 23 - a base station for aligning a reverse link channel of a code division multiple access, the base station comprising: for receiving a unique one by a subscriber unit over a reverse link And means for orthogonally encoding the signal; and determining an overall timing offset of the encoded signal in response to a message re-designating the timing control of the user unit previously controlled by another base station The device for coarse timing adjustment of the timing of the encoded signal. 2 4 - A subscriber unit operating in a wireless network aligned with a coded multiple access reverse link channel, the subscriber unit comprising: an orthogonal channel transmitter for transmitting an inverse Sending a signal encoded by the only parent to the base station; and. a timing adjustment unit for causing coarse timing adjustments for the encoded signal in response to receiving an overall timing offset 'from the base station' such that the encoded signal substantially The encoded signals having at least one other subscriber unit on the reverse link of the base station are orthogonal to one another. G 25. A method of operating a subscriber unit in a wireless network, the method comprising: transmitting a unique and orthogonal encoded signal to a base station over a reverse link; and for the encoding a coarse timing adjustment of the signal in response to receiving a total read timing offset from the base station such that the encoding is over-performed and on the reverse link having the base station At least one of the 15 1357730 other encoded m numbers from the unit is orthogonal to each other. a subscriber unit operating in a wireless network, the subscriber unit comprising: means for transmitting a unique and orthogonal coded signal 'to a base station over a reverse link; and Means for coarse timing adjustment of the encoded signal in response to receiving an overall timing offset from the base station, wherein the encoded signal is substantially associated with the base station The encoded signals to the other subscriber units on the reverse link are orthogonal to each other. c 27 methods for operating in a system providing code division multiple access communication. The multi-path pick-up method is implemented between the components of the terminal of the first group and the components of the terminal of the @@ The method includes: designating a first code to the terminal of the first group, each user of the first group being uniquely identified by a unique-code phase offset The same code used by the first group to the second group c end a each of the second group uses a common phase offset of the code; an additional code to the second group For each item in the group, "Muscle < Mother 1" is due to Suichuan; the extra code is for the second group, and the terminal is only 53 丄: >:) / /JU Other components are aligned. -隹人—A wireless communication system including the first set of the access unit and the access unit, the first set and the access unit: this is enough with &quot ; 'Central base station communication, the first set of the access unit 糸 using a crystal moon rate scrambling code to separate Each of the individual units of the first set of user access channels 70 has a unique time offset of at least a longer pseudo-random noise sequence to select C and a non-father. a frequency sequence, and a second set of the access unit, /, a common chip 1 rate scrambling code used by the first set of unconnected units, and (ii) capable of scrambling for the common chip rate The timing of the code is adjusted overall. β 壹, pattern: as the next page C 54