TW201246954A - Apparatus, system, and method for managing reverse link communication resources in a distributed communication system - Google Patents

Abstract

An apparatus, system, and method efficiently manage reverse link communication in a communication system having geographically distributed base stations. Coupled load information is exchanged between base stations allowing a base station to determine an appropriate allocation of reverse link channel resources to mobile stations served by the base station. Since the allocation of reverse link channels resources are controlled directly by the base station, delays due to communications with a central controller are eliminated. As a result, adverse effects of load scheduling based on obsolete reverse channel information are minimized.

Description

201246954 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates generally to communication systems, and more particularly to apparatus, systems, and methods for managing reverse link (uplink) communications in a communication system. [Prior Art] Many wireless communication systems provide a plurality of communication units or areas by using a geographically dispersed base station, wherein a servo base station provides communication services to a plurality of mobile stations in an area corresponding to the servo base station. In this case, the reverse link signal transmitted from each mobile station may interfere with other reverse link signals transmitted from other mobile stations. Due to the interference and limited resources, the capacity of each base station is also limited, and several base station servos are limited. The reverse link load caused by the mobile station, the coupled reverse link load caused by several mobile stations of other base station servos and other sources of noise will affect the reverse link capacity of a base station. Reverse link load scheduling provides a mechanism to maximize the rapid utilization of system information by controlling the transmission of several mobile stations. In a conventional communication system, the central controller evaluates the reverse link load and the reverse link coupling. Load, and other load schedules determined by t '. However, for large π knife data applications, although these reverse link transmissions can affect negative m at other base stations, several mobile stations are controlled by single-feed base stations to reduce scheduling delays. However, the conventional system is limited by several methods. For example, the communication with the central controller causes a significant delay, and the information collected by each base station is forwarded to the central controller of the central controller 1 to process the information, and the optimum of each base station is determined. Load capacity and transmit the optimal load capacity to each base station. Bases 164692.doc 8 201246954

Base station operating at maximum capacity. It will over load another attempt to get close to it. Excessive load conditions result in data loss, re-transmission and other undesirable consequences. Therefore, there is a need for a device, system, and method for rapidly allocating reverse link information in a communication system utilizing a geographically dispersed base station. SUMMARY OF THE INVENTION The present application claims the priority of the following patent application: US Provisional Patent Application No. 60/479,255, filed on Jun. 16, 2003, entitled "Method And Apparatus for Distributed Control of Reverse Link Communication Load Scheduling (method and device for decentralized control of reverse link communication load scheduling) ": and US provisional patent application 'application number 60/480,155, application date June 19, 2003, name "Method And Apparatus for Distributed Control of Reverse Link Communication Load Scheduling, which is incorporated herein by reference in its entirety. The present invention discloses a device, system and method for managing reverse link communication in a decentralized base station communication 164692.doc 201246954 system. In several exemplary embodiments discussed herein, 'reverse link communication is numbered within a communication system The base station decentralized management avoids the delay associated with the conventional management of the reverse link channel because the reverse link management does not rely on communication with a central controller. In a first exemplary embodiment, a non-servo base station determines a light load indicator according to a plurality of coupled load parameters detected by the non-servo base station, and the mobile station recognizes another The base station serves as the servo base station. The coupled load indicator is used to indicate parameters of the coupled load experienced by the non-servo base station and may include parameters such as a normal and average received signal to noise ratio (SNR) and station speed. Transmitting a coupled load indication according to the coupled load parameters to the servo base station. The servo base station calculates the non-transfer according to the coupled load indication item and a mobile station transmission parameter (such as a scheduled data transmission rate, etc.) (4) The expectation of the base station is combined with the load. The expected matching load is transferred to the non-ship base station, wherein the non-spoken base station calculates the volatility by considering the expected _ combined load, and the plurality of mobile stations of the non-ship base station are calculated according to the calculation; Capacity and schedule loading. In the case of a small #& 死 丨 外 外 外 外 外 外 外 外 外 外 外 外 外 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓 吓The non-servo base station is determined according to the fact that the non-servo base station should belong to each mobile station (which has identified some other base stations as the feeding base, and the load parameters (such as a normal state and the average received signal to the noise nr) 4) A blessing load indicator. In the second exemplary embodiment, the maximum tolerable #合负^164692.doc 201246954 associated with the (four) service base station is forwarded to the servo base station for each scheduled period, and the measured number of actions a The coupled load indicator is forwarded to the servo base station at a lower frequency. I can be used in other mobile stations. The servo base station under consideration can also be a non-servo base station. Therefore, the servo base station also determines a maximum tolerable coupling load from several mobile stations that are served by other base stations. The base station performs load scheduling based on the maximum tolerable coupled load reserved for several rows of stations that are not imposed by the base station but that is imposed by the maximum tolerable coupled load received by several other base stations. In a third exemplary embodiment of the present invention, a mobile base station forwards the transmission schedule based on the estimated expected coupling loss of the reverse link transmissions belonging to the plurality of mobile stations, and the mobile stations reversely connect the transmission schedules. The mobile station is served by several other bases. Each base station is estimated to belong to (by several other base stations. The number of mobile stations is expected to be combined with the load. According to the estimated combined load and the amount of the base station, the base station serves the base station. The plurality of mobile stations are scheduled to load. Therefore, in the third exemplary embodiment, the base stations do not receive explicit or direct consumption load information from several of the base stations, and therefore, the number of unsupported transmissions in the backhaul is not supported. This third embodiment is particularly useful for light load and load information communication between base stations. Although any of several techniques can be used to calculate the estimated light load, the third exemplary implementation is based on such The previous several reverse link transmissions of the mobile station. The base m transmission rate and the measured _ are never discharged by the base station: the two remaining amount is called the combined load. The previous load of the previous load will be converted. "Loading"; 预估 Estimated the expectation during the next scheduled transmission "Μι statistic function dependence in some environments t can be adapted to 164692.doc 201246954, within a specific boundary, 兮" Looking forward to coupling loads, blindly, Determining that the number of mobile stations that can be used to serve the base station can be scheduled for the base station. [Embodiment] FIG. 1 is a block diagram illustrating a communication system 100 according to the present invention. In several exemplary embodiments, a plurality of geographically dispersed base stations 1 〇 2 i 〇 4 i 〇 6 and ι 〇 8 are used to provide wireless communication services to a plurality of mobile stations 110, 112, and ι 4. FIG. 2 is a communication system. A portion 200 of the cymbal, wherein a single mobile station 2 〇 2 communicates with a plurality of base stations (102-108), and the functions of the base stations serve as a servo base station 204 of the mobile station 2 〇 2 and its non-lexical base station 206 At any given time, the functionality of a base station (102-108) may serve as a servo base station 204 or a non-servo base station 206 for a particular mobile station (11〇114), or may not directly act on the mobile station (110-114). Performing any function. For simplicity, four substrate stages 102, 104, 106, 108 and three mobile stations 11A, 112, 114 are illustrated in Figure i, which may include any number of base stations (102). -108) and mobile stations (110-114), as well as other communication devices. In the exemplary embodiment, communication system 100 is a cellular communication system that utilizes code division multiplex (CDMA) communication technology to provide voice and data services. Those skilled in the art will be able to apply the teachings herein in accordance with conventional techniques. A variety of other different types of communication systems suitable for use with the present invention will be immediately apparent. Each base station 102, 104, 106, 108 provides wireless communication services in a coverage area 116, 118, 120, 122 or unit. For several mobile stations (11〇, 112, 114), the coverage areas (116-120) overlap, and the mobile station (110-114) can communicate with at least one base station (102-108) at any one time. . If the I64692.doc 201246954 mobile station (110-114) is within the coverage area of a base station (102-108), the mobile station (110-114) will recognize the base station (1 〇 2_1 〇 8) as a In the role of the base station, the following will be discussed in detail, only one base station (1〇21〇8) function as a specific mobile station 202 (1 10-1 14) for the data communication servo base station 204, a servo The base station 204 is responsible for the base station of the next transmission schedule of a mobile station 2〇2. Figure 1 includes several exemplary shapes representing service areas 116, 118, 120, 122 around each base station (1〇8), where base stations (102-108) are most likely to be within the service area (116_122) as such The servo base station 204 of the mobile station 202 (110-114). Each mobile station (11〇114) maintains a set of active base stations in the memory, wherein members of the group communicate via a communication link that satisfies the required standard for selecting a mobile station 2〇2 (u〇114) An example of a suitable method for a plurality of active base stations (102_108) includes receiving, at a suitable level, a signal transmitted from the base station (1〇21〇8) at a mobile station (110-114) to transmit a base station (102_108). ) identified as active base stations 2〇4, 206 (102-108). In these exemplary embodiments, the base stations 204, 206 (102-108) are selected based on the received signal strengths of the plurality of navigation signals transmitted by the base stations 2, 4, 206 (102-108). In some environments, other technologies may be used to select the base stations 2〇4, 2〇6 (1〇21〇8) in which the base stations 2G4 and 2G6 (1G2.1G8) provide communication services. - Action port 202 (110-114) 'The quality of service and data transfer rate between these base stations (1〇21〇8) may vary for a number of different reasons. In the exemplary embodiment, one of the active base stations (i 〇2·i 〇8) is selected as the carrier base station 2G4 for data communication other than voice information, and any of several technologies and standards are It can be used to select the uniform base station 204. 164692.doc 201246954 may be based on the forward communication link 210 (from the base station 204 (102-108) to the mobile station 202 (110-114)), the reverse communication link 212 (from the mobile station 202 (110- 114) The servo base station 204 is selected to the characteristics of the base station 204 (102-108) or according to both the reverse and forward communication links 212, 210. The quality of the forward link channel 21 and the reverse link channel 212 can be determined, for example, by measuring the carrier-to-interference ratio of the channel, in the exemplary embodiment, in a reverse link channel quality indicator channel. The information is used to identify the servo base station 204 and is identified by the R-CQICH channel. The feeding base station 204 should wait for the communication from the mobile station 202, and is performing the reverse navigation by performing a plurality of different tasks (such as distributing the data transmission rate through the scheduled approval and sending the power control command). Snr maintains above a critical value, etc.) to provide services. In addition, if it is a hybrid ARq, a servo base station 204 decodes the transmission from the mobile station 202, and if it is a soft handover, a non-servo base station can also decode a transmission and send an ACK. The closed shape of the coverage area defines a number of exemplary geographic service areas (116-122), where several mobile stations (110-U4) within the area (U6122) will likely be associated with the corresponding base station (1〇2_1〇) 8) There is appropriate communication to identify the specific base station (1G2_1G8) as (4) service base station 204. However, several other base stations (10)-(10) can be implemented as a plurality of active base stations 206 (102-108) of the mobile station (1) G_n4. Therefore, as shown in the figure! As shown, a first action port no is located in the first service area "6 provided by the first base station 102; a first-scheduled station 112 is located in the second service area ι8 provided by the second base station 1-4 The third mobile station 114 is located in the third service area 120 provided by the third base station 1G6 and the fourth base station 1 () 8 provides the fourth service area 122. 164692.doc 201246954 FIG. 3 illustrates a base station 300 in a block diagram, which is suitable for any of the base stations 1〇2-108, 204 discussed in FIGS. 1 and 2, in accordance with an exemplary embodiment of the present invention. 206. The base station 300 can include any combination of hardware, software, and firmware for performing the base stations (102-108), and the functions and operations of the blocks shown in FIG. 3 can be implemented in any number of components, circuits, or software. . At least two functional blocks may be integrated into a single component, and the functions shown in any single component or block may be implemented on several components, e.g., by processor 104 performing some receiving processing. The base station includes a wireless transceiver 302 configured to communicate with a plurality of mobile stations (11〇_114) according to a plurality of protocols of the particular communication system, and a plurality of radio frequency signals are exchanged via an antenna 308, the antenna 3〇8 may include several sectors in some environments. The wireless transceivers 〇2 modulate, amplify, and transmit signals via the forward link channels 212, and receive and demodulate the reverse link signals transmitted by the mobile stations (110_114) via the reverse link channels 21〇. The processor 308 can be any processor, microprocessor, computer 'microcomputer or processor that is adapted to perform the control and computing functions described herein and to the overall functionality of the base station. Combination. The software code executed at processor 〇4 performs a number of method steps for measuring and processing signals and for performing the reverse link management functions of the exemplary embodiments. A backhaul transmission interface 306 provides an interface for the backhaul transmission 208 of the communication system 100. The backhaul transmission interface 〇6 includes hardware and software for exchanging nicknames via the backhaul transmission 208. The processor 304 transmits and receives information to and from a plurality of controllers and a plurality of other base stations (ι〇2_ι8) via the backhaul transmission interface 306. 164692.doc 201246954 According to several exemplary embodiments of the present invention, FIG. 4 is a block diagram, and FIG. 5 is a table 500 illustrating the relationship between the mobile stations (110_114) and a plurality of base stations (1〇21〇8). . The solid line connecting several base stations (1〇2_1〇8) and several mobile stations (110-114) in FIG. 4 represents the mobile station 202 (one of 1 l〇-U4) and its corresponding servo base station 204 (1) The connection between one of 02-1 08, and the dotted line represents the connection between the mobile station 202 (one of 110-114) and its non-servo active base station 2〇6 (1〇21〇8). As discussed herein, a non-servo active base station 2〇6 is a base station 300 that is identified as not a servo base station 204 in a group of active base stations in a mobile station 2〇2. In the exemplary case shown in Figures 4 and 5, each mobile station (110-114) maintains a set of active base stations including a ship base station 2G4 corresponding to the service area (116·122), the service area ( 116-122) includes the mobile station (1) 〇 _ 114) and all other base stations (1 〇 2_1 〇 8) that are non-shipping base stations (102-108). Therefore, for this exemplary case, all base stations (1G2-1G8) are maintained by the mobile stations (11 (M14) as active base stations. When the distance from a base station is relatively large, a mobile station cannot The base station is maintained in the base station of the group. Even if the base station can receive reverse connection interference from the mobile station, it will not be recognized as the non-lexical base station of the mobile station. A base station only considers the signal strength enough. The strong mobile stations and their transmissions are briefly focused on the single mobile station 11 (), the first base station 102 is the first mobile station 2 〇 2 (11 〇) servo base track and the second base station 1 〇4. The third base station dirty fourth base station (10) is a non-servo base station of the first mobile station 202(1)〇). Therefore, although: in this example, only one of the base stations (10)··) performs the base station 2〇4 for any particular mobile station (1), while the other base stations perform non-lexical 164692.doc 8 • 12-201246954 (active) base station 206, but each of the base stations (102-108) receives the respective reverse link transmissions of the mobile stations (110-114), the result, experienced at a base station 102 The reverse link load and the reverse link coupled load are caused by the reverse link load of the base station 11 伺服 of the base station 102 servo, and the coupled load is caused by the transmission of the other mobile stations 112, 114. In several exemplary embodiments of the present invention, an exemplary distribution of reverse link loads and reverse link coupled loads experienced at a base station (102-108) is illustrated in a load pie chart. The different slices (602-608) of the load pie chart represent the combined reverse link loads caused by several mobile stations (11 (Ml4), which can be measured or simulated in an exemplary case. At any base station 002" 〇8), the total combined reverse link load may be caused by transmission from several mobile stations (11〇_114), where each part of the total reverse link load (6〇2_6〇8) is caused by a specific category Several mobile stations in the middle (110_114). The load portions (602-608) may include a non-servo coupled load portion 6.2, a servo non-single load portion 604, a servo single portion 6 〇 6 , and an unillustrated coupled load portion 608 ^ the non-servo coupling The coupled portion 〇2 includes a coupled reverse-connected load 'caused by all of the base stations (102-108) included in the base station in its group but not by the base station (1〇2_1〇8) The mobile stations (11〇·114) β of several base stations (102-108) are therefore not recognized by the plurality of mobile stations (1) Q_114 that contribute to the non-servo light load portion 6G2. For the servo base station 2〇4. 5 non-single load component 604 includes a merged reverse link load, belonging to all base stations (1() 2_1() 8) but including other base stations in the list of base stations (1〇2) ·1〇8) mobile station. Therefore, several mobile stations (11G-114) contributing to the non-single 164692.doc -13- 201246954 service load part 6G4 recognize the base station (02 108) as a servo base station' but also several other base stations (102-108) is identified as a non-servo active base station. The combined reverse link load included in the single servo load portion 6〇6 belongs to all base stations served by the base station (1Q2_1G8), wherein the base station (102-108) is at any of the mobile stations (1) G lu) The group base is the only base station in the base station. The unillustrated load portion _ includes all other reverse link signals and noise that contribute to the total reverse link load not included in any of the other load portions (6〇2, 6〇4, 6〇6). An example of a source that may contribute to the unillustrated load portion 608 includes reverse link transmissions from a number of mobile stations that do not include the base station in their active group but are close enough to the base station to facilitate total coupling Load "The type of mobile station is too far away to have proper communication links with the base station, and the base station is included in the base station of the group but the sum of its minor contributions is large enough to occupy the reverse link capacity. one cent. The relative size of the load portions (602-608) In most cases, the time lapse may vary due to continuously changing channel conditions, which may be due to several factors, such as such actions. The action of the station (11〇114), the action of obstacles, or the unsatisfactory distribution of several mobile stations (11〇_114), it is necessary to remove several mobile stations (110-114), and in several bases Transfer several mobile stations (110-114) between stations. When the combined load of all such parts (6〇2_6〇8) exceeds the capacity of the base station (102-108), the quality of service (QoS) of the mobile stations will suffer, and the system becomes slightly unstable. The coverage of the unit is reduced and the call is missed. However, the load is less than the capacity of the 164692.doc •14· 8 201246954 base (102-108). If the data transmission rate is not adjusted according to the requirements of the mobile stations (11 0-114), resources will occur. Inefficient use. According to the exemplary embodiments, the reverse link communications are managed by the base stations (102-1 〇 8), and several reverse link resources are quickly allocated (load scheduling) to the mobile stations (110- 114). The reverse link resource includes, for example, a data transmission rate and a power level that contribute to the load of the base station (102-108). Figure 7 illustrates, in block diagram form, a portion of a communication system 100 that utilizes a number of geographically dispersed base stations (102-108) to provide communication services to a number of actions, in accordance with a first exemplary embodiment of the present invention. Taiwan (11〇114). In most cases, the communication system includes several base stations (7〇4, 7〇6) that are strategically positioned to provide wireless communication services to a large number of mobile stations 7〇2, depending on a mobile station. 702 is the quality of a plurality of communication channels with the base station (704, 7〇6), and the mobile station 702 can communicate with at least one base station (704, 706) at any particular time. As described above, each of the mobile stations 7〇2 maintains a set of active bases. The communication link between the mobile station 702 and the base stations (7〇4'7〇6) is suitable for communication. In such a function + base station towel, the base station is executed as a servo base station 704' and the other base stations in the active group are non-feeding base stations 70. "This situation usually occurs during a soft handover period, wherein A single base port performs the function of the servo base station 7〇4, while the other at least one base station is a non-feeding base station. However, when the condition is regarded as positive #, the role of the ship base station 7〇4 is transferred to the previous one. A base station (meaning that handover occurs) of the base station 7〇6 function in the non-servo role. 164692.doc -15· 201246954 706). Those skilled in the art will use the platform 300 according to these teachings and conventional techniques. The function can be used as a base station for multiple mobile stations 7〇2, and any mobile station 7〇2 can maintain any number of active base stations (704, 706). Therefore, the teachings discussed in this article can be extended to Any number of rows 702, vocabulary base stations 7〇4 and non-feeding base stations 7〇6, as will be added to the following steps - U' these other base stations 3 〇〇 与 品 品 _ (10) Even ^ becomes the base station of the material, but it can be used in the base station (704, 7 06) contributing to the load experienced. The servo base station 704 can be the first base station 1, 2, the base-base 104 or the second base station (10) discussed above with reference to Figures 1 to 4, the word base station The function can also be used as a mobile station (not shown in Figure 7) (4) service base station 706, and the service base. The 706 function can be used as a feeding base station for several other mobile stations (not shown in Figure 7). 7〇4. Therefore, a base station (10)·_) function can also be used as a certain base station 7G2 (four) service base station, and as a non-ship base station of several other mobile stations. Because &, in most environments, Other such base stations perform the functions of the base stations (take, 7Q6) described herein. In the first embodiment, the base station (which functions as a non-feeding base station 706) is received according to another The base station 3 (which functions as the feeding base station 704) is expected to face the load 712, and determines an expected available capacity 'where the expected coupled load 712 indicates the expected consumption load at the non-servo base station, It is the reverse link of a mobile station 7 that is served by the base of the feeding base. Caused by the loss of 21G. The ship base (4) 4 (four) from the non-servo base station 706 received coupling load indicator, and several parameters associated with the next scheduled data transmission rate, and determine the period (four) combined load 712. If I64692. Doc -16 - 8 201246954 A plurality of mobile stations 702 are servoed by the servo base station 704 and include the non-servo base station 706 as a non-servo base station, and the expected coupled load 7 12 can be used by each of the mobile stations The sum of the expected coupled load determined by the coupled load 7丨2 and the scheduled data transmission rate is expected. The non-servo base station 7〇6 receives and processes the reverse link transmission 21〇 of the mobile station 702 to determine at least one coupled load parameter ( Such as a normalized and average received signal to noise ratio (SNR). Another example of a crane load parameter is the rate of the mobile station 702. The non-servo base station 7〇6 calculates the coupled load indicator 710 based on the coupled load parameters such as shai. The coupled load indicator 71 is forwarded to the servo base station 7〇4. The feeding base station 704 uses the coupled load indicator 71 and a transmission parameter of the mobile station 702 to determine an expectation at the non-servo base station 7〇6.

Junction load. The servo base station 704 will represent one of the desired coupled loads 712

A role in the armor platform. The station 706 is 4 I64692.doc 17 201246954 In the first exemplary embodiment, the coupled load indicator 71 is a noise-to-interference plus interference ratio (Ecp/Nt) per chip, where Ecp represents each navigation signal. The energy of the wafer. If the reverse link navigation is controlled by power, an average expectation is calculated by averaging the chips (Ecp/Nt) for a specific period of time (Ecp/Ntp the coupled load indicator 71 can be the average expectation (7) 邛/price Or any function that expects (Ecp/Nt) on average. Although the coupled load indicator 710 can be forwarded to the servo base station 704 using several other methods in some environments, the coupled load indicator 71 is transmitted via the backhaul transmission 208 in the first exemplary embodiment. Therefore, the coupled load indicator 710 is routed via the backhaul transmission 208 using the appropriate k-bit transmission and location. The backhaul transmission interface 3〇6 performs any required conversions or exchanges the coupled load indications via the backhaul transmission. In some environments, the coupled load indicator 710 can be transmitted via a direct communication link between the non-servo base station 7〇6 and the servo base station 704. For example, in some cases a coupled RF load indicator 710 can be transmitted using a radio frequency or microwave point-to-point system connection. Further, in some cases, the coupled load indication item 71 can be transmitted via the mobile station 7〇2. In the first exemplary embodiment, the servo base station 704 identifies a number of mobile stations 702 that are expected to be transmitted during the next transmission period, and based on a number of coupled load indications 710 received from the non-servo base station 706 (e.g., Ecp/ Nt), and the data transfer rate used by the mobile station 702 is authorized (scheduled) during the next transmission, and the expected coupled load 712 is generated. Therefore, the transmission parameter includes at least the expected data transmission rate of the mobile station 702 in the first exemplary embodiment. In addition, a number of other transmission parameters can be used to calculate the period 164692.doc 201246954 to be coupled to the non-servo base station 7 〇 6 such as assisted navigation transmission or control channel flow versus navigation ratio. In scenarios where autonomous transmission occurs on the control and voice channels, the expected coupled load 712 can account for the average expected coupling load contributed by the channels. In the first exemplary embodiment, the expected coupled load 712 is some function of the expected Ecp/Nt and other number of transmission parameters (including the scheduled data transmission rate) 'the expected Ecp/Nt will be at the mobile station The expected future pass of 702 is experienced by the non-servo base station 706. The servo base station 7〇4 generates the expected coupled load 712 based on the coupled load indicator 710 and forwards the expected coupled load 712 to the non-servo base station 7〇6. Therefore, in the first exemplary embodiment, the expected coupled load 712 is based on the Ecp/Nt measured at the non-servo base station 7〇6, the reverse link transmission power on the control and voice channels, and the 5H mobile station. The data transfer rate on the traffic channel of 7〇2. However, in some environments, the expected light load 712 can represent a number of other values. For example, the period (4) load 712 can represent an expected change in the face load that would be experienced at the non-servo base station as compared to the previous transmission. However, when at least one mobile station 7〇2 served by the servo base station 704 includes at least one other non-serving base station in the group, the feeding base station 704 generates - expects to engage the load 712 A light load indicator 71 is transmitted to the service base station 704 at each non-serving base station. Thus, any particular base station 300' that functions as a non-(four) base station can receive an expected coupled load 712 from any number of base stations 300 that function as the remaining base station 7(). In the first exemplary embodiment, the expected light load 712 is transmitted to the non-feeding base station 7() 4 via the backhaul transmission 208, and the backhaul transmission interface 164692.doc 201246954 performs the required processing and formatting. The expected coupled load 712 is transmitted via the backhaul transmission 208 to the base station 300 functioning as a non-servo base station 7〇6. In some cases, several other techniques may be used to forward the expected coupled load 712. After a base station 300 has received the expected coupled load 712 from all of the appropriate servo base stations 7〇4 of the plurality of mobile stations 7〇2 (to facilitate the non-servo coupled load portion 6〇2 of the total load), the non-servo base The station 7〇6 (3〇〇) determines the available order amount. The sum of all expected coupled loads 712 is the expected non-servo coupled load portion of the base station 300. The available capacity is the difference between the total capacity of the non-servo base station 706 (300) and the total expected non-servo coupled load portion (4〇2) and the undescribed load portion 4〇8. After considering the load caused by voice or basic reverse channel traffic, the available capacity (CAV) at a base station can be expressed as: CAv=CTOT-(LoadEx+LoadUA) where CT0T is the unit that considers speech or The total capacity after the load caused by the basic reverse channel traffic; LoadEx is caused by the expected non-servo coupled load of several mobile stations served by several other base stations, and the base station is included in the active base station for the group L〇aduA is caused by loads from other sources. Using the available capacity, the base station 300 of the non-servo base station 7〇6 of the mobile station 7〇2 assigns a plurality of mobile stations (not shown) to which the reverse link resource (load schedule) is served. In the exemplary embodiment, after allocating resources to a plurality of other active base station mobile stations, the non-servo base station 7〇6 loads the mobile stations (they are in the base station in which they are acting) 164692.doc • 20· 8 201246954 without any other base stations) FIG. 8 illustrates a method for determining an expected coupled load, which is implemented as at least one mobile station 702, in accordance with a first exemplary embodiment of the present invention. The servo base station 7〇4 is a base station 3〇〇. In some environments, the method illustrated in Figure 8 is implemented in a base station 3 that is also a non-servo base station 7〇6. At least one non-servo base station 7〇6 is maintained in the base station of the group of at least one mobile station 7〇2 served by the servo base station 7〇4, and the method described with reference to Fig. 8 is performed. Several of the techniques discussed in this article can be applied to any number of base stations and mobile stations (110-114). In these exemplary embodiments, the methods are at least partially performed using software-based code executed on the processor 〇4 within one or more base stations. Those skilled in the art will immediately appreciate a variety of different techniques that can be used to implement the methods in accordance with the teachings herein in accordance with the teachings herein. At step 802', a coupled load indicator 71 is received from a base station 300 of the non-servo base station 7〇6 as at least one mobile station 7〇2, and the coupled load indicator 71 is indicated at the non-feeding base. The shank load measured by the station 7 〇 6 is caused by the mobile station 702 that is served by the other base station 3 of the servo base station 704 of the mobile station 702. The non-servo base station 706 is included in the set of active base stations maintained by the mobile station 702. In the first exemplary embodiment, the coupled load indicator 710 represents the ECP/NT measured at the non-servo base station 7〇6. In step 804, the servo base station 7〇4 determines that the non-servo base station 7〇6 is due to the expected coupled load 712 of the mobile station 702 based on the coupled load indication item 7ι〇 and at least one transmission parameter. In the first exemplary embodiment, 164692.doc • 21 · 201246954 (4) The base station 704 is configured to write the measured load indicator 710' on the non-servo base station for the scheduled data transmission rate of the future expected transmission. And the transmission power level of the mobile station 702, calculating the expected face load 712 of the mobile stations 702 that are expected to be transmitted during the next transmission. Therefore, it is expected that the coupled load is the expectation that the non-lexical base station employs the reverse link transmission of the action (4) 2, and the base station list includes at least the servo base station 7〇4 in the action of the mobile station. And the non-servo base station 7〇6. At step 806, the expected coupled load 712 is forwarded to the base station 3 that functions as the non-feeding base station 706 of the mobile station 7〇2. In the first exemplary embodiment, the expected coupled load 712 represents the expected load as a function of the scheduled data transmission rate, and the future expectation of the non-servo base station 7〇6 due to the mobile station 7〇2 The expected ECp/Et level of transmission. However, the expected coupling load 712 can represent other parameters or values. For example, the expected coupled load 可 can represent an expected change in the future transmission of the non-servo base station 706 due to the future transmission of the mobile station 702. In the first exemplary embodiment, the expected coupling load 712 is formatted to conform to the appropriate agreement and transmitted via the backhaul transmission 2〇8 of the communication system 1〇〇. The expected coupled load 712 can be forwarded to the non-servo base station 7〇6 using other techniques. For example, the expected coupling load can be transmitted using a direct connection communication link (such as a point-to-point microwave connection, etc.) between the servo base station 704 and the non-servo base station 7〇6. Figure 9 is a flow chart illustrating a method of determining an available capacity at a base station 300 functioning as a non-servo base station 706, in accordance with a first exemplary embodiment of the present invention. In some environments, the method shown in Figure 9 is also implemented as one of several other actions. 164692.doc

• 22· 201246954 The (10-114) servo base station 7〇4 function base station 3〇〇. Referring to the method illustrated in FIG. 9, the set of active base stations maintained by at least one mobile station 7〇2 includes the non-servo base station 7〇6 and a servo base station 704. Several of the techniques described herein are applicable to any number of base stations 3 and mobile stations (110-114). In step 902, an expected coupled load 712 is received from a base station 300 functioning as a base station 7〇2 of the mobile station 7〇2, and the mobile station 7〇2 maintains one, 'and the active ground is also σ' It includes at least the non-servo base station and the service base station 704. As noted above, the expected coupled load 712 represents the expected face-to-face load experienced by the non-servo base station 7G6 due to the expected future transmission of the mobile station 7G2. In step 904, the base station 3, which is a non-servo base station 7〇6 function, determines the available capacity of the non-servo base station 7〇6 based on the expected coupled load 712. The voice and non-scheduled reverse traffic f are considered. After the feed, the non-feeding base station 706 determines the available capacity by calculating the difference between the total capacity and the sum of all loads and expected load. The remainder indicates that the non-servo base station 706 can be used for the available capacity of a number of mobile stations (11 〇 _ 114) so that the non-serving base station 706 can function as a servo base station. In step 906, the base station 3 functioning as the non-serving base station 7〇6 allocates the reverse link channel 212 resource (load schedule) to the plurality of mobile stations (1) G-m) according to the available capacity, and the actions are performed. The station is served by a base station 3 that functions as a non-word base station 706 of the mobile station 7〇2. The servo base station 7〇6 allocates the available capacity by limiting the power level and data transmission rate of any of the mobile stations (110-114) served by the non-servo base station 7〇6. 164692.doc -23· 201246954 In the exemplary embodiment t, the methods described with reference to FIGS. 8 and 9 are performed in a plurality of geographically dispersed base stations, and can be used as the function of the feeding base station 704 at any time. The function of the base station is either a non-feeding base station 706 of at least ___=:; and at least another mobile station (1) G ii4). In addition, a mobile station 7〇2 can maintain a group of active base stations. In addition to the servo base station 7〇4, the group base station includes a plurality of non-feeding base stations 7G6J for high efficiency management. The reverse link loads of the different base stations 300, the coupled load indicator 71 and the expected coupled load 712 are transmitted to the appropriate base stations 3, and the multiple received from the plurality of base stations 300 are considered. The calculation is performed with parameters. Figure 10 is a flow chart illustrating a method of allocating reverse link channel resources in a communication system 1A having a plurality of geographically dispersed base stations 300, in accordance with a first exemplary embodiment of the present invention. As described above, the functions of the servo base station 704 and the non-servo base station 706 can be performed in a single base station 3, which functions as a servo base station 7〇4 of some mobile stations (110-114). And as the other mobile station (110-1M) non-feeding base station 7〇6 function. In step 1002, a plurality of base stations 3 that function as the servo base station 7〇4 receive the coupled load indications 710' measured by the plurality of base stations 3 that function as the non-servo base station 706, wherein the couplings The load is caused by the reverse link transmissions from the plurality of mobile stations 7〇2 served by the servo base stations 704 and the mobile stations 702 maintain a set of active bases including at least one non-servo base station 7〇6. station. Each non-servo base station 7〇6 generates a coupled load indicator 710' (which, along with the transmission rate), is measured on the non-servo base station 7〇6 due to the number of other 164692.doc 201246954 base station 300 servos. Coupling load. The coupled load fingers 710 are transmitted by the non-serving base station 7〇6 to the corresponding servo base station 7〇4 via the backhaul transmission 7〇8. A suitable notation for indicating the relationship between the various base stations (3〇〇, 7〇4, 7〇6) includes the use of subscripts to represent a group of base stations. In the first exemplary embodiment, each base station (BSj) in the active group of several mobile stations (Msi) (except when BSjeServingBS-MSi) transmits the (Ecp/Nt) ji to the MSi Servo base station. (Ecp/Nt) ji is used as a consumable load indicator in the first exemplary embodiment. servingBs_MSi is the set of servo base stations of the mobile station (1), and (Ecp/Nt)ji(i+(T/p) (Ri)+(C/P))/(i+(Ecp/Nt)ji(1+( T/p)(Ri)+(c/p))) is the coupling load experienced by the non-serving base station (BSj) due to the number of mobile stations (MSi) of the servo base station servos. (T/p)(Ri) is the flow rate of the traffic channel to the navigation ratio ^(c/p) control channel (and basic channel) power ‘^ to the navigation power ratio when the transmission rate is... In the exemplary embodiment A, a value representing the i is transmitted to the servo base stations (BSk). In step 1004, each of the servo base stations 7〇4 recognizes a number of mobile stations 702 that are servoed by the servo base station 7〇4 and expects to be transmitted during a future transmission; each base σ (BSk), the BSk determines A group (FSk) that includes several mobile stations 'subjected by BSk' and has a priority order that exceeds the minimum priority. In step 1006, each of the servo base stations 7〇4 determines the non-servo base station 7〇6 to be coupled due to the number of mobile stations 7〇2 being servoed by the servo base station 704. Load 712. The servo base station 7〇4 determines the coupling load for each mobile station 7〇2, which is expected to be based on the coupled load indication item 710 received at the servo base station 7〇4 164692.doc -25- 201246954 and The mobile stations 702 transmit a number of transmission parameters (ie, they are members of the group FSk). Therefore, the BSk determines the coupling load for all MSis in FSk in other BSjs, where such BSjt ServtngBS ^MS,; .^ SinrMC/P)) ^ Sinr^OAClP))

CoupkdLoad^XB^m,)^ ^ i+stm-j^CIP)) ' ,3⁄4 l+Sinr^CIP)) jMAcitwSetiO J*AedveSetU} where CoupledLoadkj is the total coupling experienced in BSj due to the MSi of BSk祠月艮Load, if the MSi is specified as a rate Ri on the R-SCH, then SinrjKR^EfRFCH]) is the estimated signal-to-interference ratio, and E[RFCH] controls the channel (including the basic voice channel and the auxiliary navigation channel) to The sum of the navigation channel powers. Sinrji (Ri, (C/P)) is related to (Ecp/Nt)ji according to the following formula:

Sinrj^C/Pn-iE^IN^jtO+iT/n^HCtP)) When the transmission rate on the traffic channel scheduled by the servo base station is Ri, (T/P)(Ri) is the traffic to the navigation Power ratio. In step 1008, the servo base stations 704 forward the expected coupling loads (CoupledLoadkj) to the non-servo base station 706. The expected coupled load 712 represents the expected coupled load calculated by the servo base station 704. Each base station (BSk) forwards CoupledLoadkj to all other base stations. In the exemplary embodiment, the expected coupled load 712 is transmitted via the backhaul transmission 208. In step 1110, each base station 300 functions as a non-serving base station 706 of at least one mobile station 702 and receives an expected coupled load 712. Based on the expected coupled load 712, the available capacity of the non-servo base station 706 is determined. Each of the non-servo base stations 706 can be used as the servo base station 704 of a plurality of other mobile stations. Therefore, if the specific servo base station 704 is also a non-servo base station 706, each servo is provided. The base station 704 receives a handle load indicator from a plurality of other servo base stations 704. Therefore, each non-servo base station 706 receiving the BSk of a CoupledLoadjk uses the equation to determine the available capacity at the BSk: C〇upledinLoadk = ^ CoupJedLoad ^

Coujc = Cau - CouptedinLoad^ where CoupledinLoad]^, received from the sum of the load of the other servo base stations 704, and Cavd^, after considering all other load contributions from the voice and basic reverse channel data traffic, The available capacity of the servo base station 704. In step 1102, the servo base station 704, which also functions as the non-servo base station 706, allocates a plurality of reverse link channel resources to the mobile stations based on the available capacity for the servo base station 704 (110- 114) (meaning that the load is scheduled for several mobile stations). Therefore, in the first exemplary embodiment, each of the servo base stations 704, which are also non-servo base stations 706, load schedules a plurality of mobile stations MSi that are servoed by the servo base station 704 according to the following formula, which also maintains several other functions. Medium base station: C〇ypledoutLoadk = V CoupledLoad j ^

Cavk ^Cavk -CoupledmtLcadk where CoupledoutLoadk has multiple base stations in the active group 164692.doc -27- 201246954 but the scheduling load of all mobile stations served by the feeding base station.

CoupledoutLoadk is the same as CoupledinLoadkj and is forwarded by BSk to «Hai B Sj. Based on the available capacity remaining after scheduling the mobile station, the servo base stations BSk allocate the reverse channel resources to a plurality of mobile stations that only maintain the servo base station as the only active base station. Therefore, according to the first exemplary embodiment of the present invention, each base station 3 that is a group of active base station members of a mobile station 7〇2 measures a plurality of mobile stations 7 that are servoed by a plurality of other base stations 704. The resulting coupled load is transferred to a number of servo base stations 7〇4 of the mobile station 7〇2. Each of the servo base stations 704 calculates an expected coupling load 712 for a plurality of mobile stations 7〇2 servoed by the servo base station 7〇4, and is used to maintain a plurality of other active base stations. Each of the servo base stations 704 calculates an available capacity based on the expected coupling load received from a plurality of other base stations 3 that function as the servo base station 704 of the other plurality of mobile stations. Therefore, each base station 3 determines the available capacity based on the expected load calculated by the other base stations of the mobile stations (which contribute to the total load of the base station 300. The resources are not required. The central controller can be used to quickly allocate, thereby minimizing delays and reducing the possibility of retransmissions and data loss. Figure U is illustrated in a block diagram in accordance with a second exemplary embodiment of the present invention - communication system 1003⁄4 portion 1100 For the sake of conciseness, including the blocks representing the two mobile stations U02 and the two active base stations (10) 4, ug6), the functions of the ten base stations (_,) include the - servo base station and the non-lexical base. Port 1106. Based on these teachings and conventional techniques, those skilled in the art will understand that a base station can be used as a servo base station 1104 of many mobile stations UG2. 164692.doc 8 -28. 201246954 Yes, and any mobile station 1102 can maintain any The number of active base stations (1104, 11〇6^ therefore the teachings discussed herein can be extended to any number of mobile stations 1102, servo base stations 11〇4 and non-servo base stations 11〇6 β. The feeding base station 1104 can For the first base station 102, the second base station 104 or the third base station 1〇6 described above with reference to Figures i to 4. The servo base station ιι〇4 may also be used as another mobile station (in the figure The function of the non-servo base station 1106 is not shown. The non-servo base station 11〇6 may also function as a servo base station ii 〇4 of a plurality of other mobile stations (not shown in Fig. 11). A base station can simultaneously function as a servo base station 11〇4 of some mobile stations, and as a non-servo active base station 1106 of several other mobile stations 11〇2. Therefore, the present description is used for each of these. Number of base stations (11〇4, 1106) The functions are performed by other base stations of other such base stations (1104, 1106) in most environments. In a second exemplary embodiment, the base station decision functioning as a non-servo base station 1106 is used for The maximum tolerable surface load of several mobile stations (10), which are servoed by another base port functioning as a servo base station 11〇4. Based on the total capacity of the non-servo base station i^, and the non-servo base The non-servo base station 1106 determines the maximum tolerable coupling load caused by the plurality of mobile stations 11〇2 that are not servoed by the non-servo base station 1106, the load caused by the other mobile stations (not shown) of the port 106. In the first embodiment, the non-servo base station 11〇6 reserves capacity for the mobile station having the other base stations 1104 as the servo base station, and the non-serving base station, the maximum tolerable consumption and negative I, The number of mobile stations (10) that the base station 11 is accustomed to can contribute to the total load of the non-servo base station 11〇6 164692.doc -29- 201246954. Then the non-servo base station 11〇6 is forwarded for the servo The base station 1104 feeds all the mobile stations 11〇2 to the maximum tolerable load 1112, and maintains the non-servo base station u〇6 in its active base station. The non-feeding base station UG6 is determined for each action. The load of the ιι〇2 is not sufficient. The coupled load indicator ii 1〇 represents the traffic deduction estimate measured by the non-servo base station due to the reverse link transmission of the mobile stations 11〇2. In the system with a power control navigation channel, the long-term average and expected navigation SNR is a suitable coupled load indicator. The servo base station 1104 allocates a plurality of reverse link resources to a plurality of mobile stations 根据2 based on the maximum tolerable coupled load. In the second exemplary embodiment, the servo base station 4 allocates reverse connection resources based on two sets of constraints. The first set of constraints is affected by the servo base station 1〇4, and the data transmission rate assigned to the mobile stations 11〇2 is required to generate a load at the servo base station 1104, which is smaller than the base station in the service base station. The available capacity of nog. The second set of constraints is affected by the maximum tolerable load reported by the non-servo base stations 1〇6. The rate allocated by the servo base station 1〇4 to all of the mobile stations 11〇2 having non-servo base stations 11〇6 should generate a load at the non-servo base station 1106 that is less than the maximum tolerable coupled load. The light load indicator item 1 1 10 and the assigned data transmission rate are determined by the mobile station 1102 at the non-servo base station! Expected load contributed by 丨〇6. Fig. 12 is a flowchart illustration of a method of managing a plurality of reverse link channels in a base station 300 as a servo base station, in accordance with a second exemplary embodiment of the present invention. In some environments, the method illustrated in Figure 12 is implemented in a base station 300 that also functions as a non-servo base station 1106. In the place where the method of the method described in 12 to 164692.doc -30-201246954 is performed, at least one non-servo base station 11〇6 is maintained at at least one mobile station 2 being servoed by the servo base station 1104. The group acts in the base station. Several of the techniques described herein are applicable to any number of base stations 300 and mobile stations ι 102. In step 1202, a base station 3, which is the servo base station 11A, receives a maximum tolerable coupling load 1112, which represents the maximum allowable coupling load at another base station 3, the other base. The station serves as a non-servo base station 1106 of a mobile station 11〇2. The non-servo base station 〇6 determines the maximum tolerable coupling load i i J 2 based on the priority order and service rate requirements of the plurality of mobile stations served by the non-servo base station 1106. At step 1204, a coupled load indicator mo is received at the servo base station 11〇4. In the exemplary embodiment, the coupled load indicator 111 is based on a number of coupled load parameters measured at the non-servo base station 1106 and represents reverse link transmission of the mobile station 11〇2 servoed by the servo base station 1104. 210, and the traffic channel quality measured at the non-servo base station 11〇6. At step 1206, the servo base station 1104 manages the reverse link transmission of the mobile station 1102 based on the maximum tolerable coupled load 1112. In the exemplary embodiment, the servo base station 1104 calculates the expected coupled loads of all of the mobile stations n〇2, which maintain the non-servo base stations 11〇6 in their active base station group. The servo base station 1104 calculates the expected coupling load of the mobile station 1102 by using the coupled load indication item 1110 of each mobile station 11〇2 and the mobile station transmission parameters of each mobile station 1102. The servo base station 1104 schedules the data transfer rates of the mobile stations 1102 so that the total expected coupled load at the non-lexical base station 1106 does not exceed the 164692.doc 31 201246954 maximum tolerable coupled load 1112 . Therefore, the servo base station 1104 allocates resources to the mobile stations 1102 while complying with the restrictions provided by the non-feeding base station 1106, thereby reducing the possibility of excessive load conditions on the non-lexical base station U06 to The smallest. Fig. 13 is a flow chart showing a method of managing a reverse link channel resource in a base station as a non-servo base σ 11 06 function according to a second embodiment of the present invention. In step 1302, the base station 300 of the mobile station UG2 (four) "the base port 300 of the force I" is based on the number of light combined loads measured by the non-servo base station ιι 6 due to the reverse link transmission of the mobile station 1102. The parameter transfers a consumable load indicator item ill to another base station 3 that functions as the servo base station 1104 of the mobile station 11〇2. _In step 1304, the non-servo base station 11〇6 determines that Maximum tolerable coupled load. A variety of different mobile station rate requirements are arranged in descending order according to their priority order. After a number of mobile stations with higher priority have assigned capacity, the mobile stations 1102 are assigned a capacity, The fraction of the maximum tolerable coupled load is equal to the capacity stored for the mobile stations 1102. At step 1306, a maximum tolerable coupled load 1112 representing the maximum allowable load is forwarded to function as the servo base station. Base station 300. In the first exemplary embodiment, the maximum receptive transfer load 1112 is transmitted to the servo base station ji 经由 4 via the backhaul transmission 2 。 8. Figure 14 is a second illustration of the present invention. In the embodiment, a method for allocating reverse link channel resources in a communication system 100 having a plurality of geographically dispersed base stations is illustrated by a flowchart. As described above, the servo base station 1104 and the non-servo base station 164692.doc 8 • 32- The function of 201246954 (10) can be executed in a single base station, and the base station 3 is used as the base station 11 G4 of some mobile stations (11G·114), and serves as several other mobile stations (110_114). The non-feeding base station 11〇6. ... In step 1402, all the base stations in the active list maintained by one mobile station 11〇2 (served by another base station station) deliver a coupled load indicator u_ to The other base stations 11G4 (which are called the service item action (9). The coupled load indicator items" 10 are based on a number of coupled load parameters measured at the base station 11〇6. In the second exemplary embodiment, The base station employs several Ecp/Nt values caused by the reverse link transmission of several mobile stations 11() 2 of the other base station 11G4 servos, and maintains the base station pair in the group. Base station. Used to indicate and explain these various Suitable records for the relationship between different base stations (3〇〇, 11〇4, ιι〇6) include the use of subscripts to represent a group of base stations. In this second exemplary embodiment, 'on several mobile stations ( Each base station (BSj) in the group of the role (in addition to BSj·eServingBS__) transmits the (Ecp/Nt) ji to the servo base station of the MSi. In the second exemplary embodiment Using (Ecp/Nt) ji as a coupled load indicator 111〇〇ServingBS_MSi coefficient of the mobile station of the mobile station (1), and (ECp/Nt)ji(1+(T/P)(Ri) + ( c/p))/(1+(Ecp/Nt)ji(i+(T/p)(Ri) +(c/p)))) is due to several mobile stations (Msi) of the servo base station servo The load involved in these non-lexical base stations (BSj). (T/p) (Ri) is the flow-to-navigation ratio of the traffic channel at the transmission rate of (1). (C/P) refers to the sum of the control channel (and basic channel) power to the navigation power ratio. In the exemplary embodiment, a value representative of the (Ecp/Nt) ji is transmitted to the servo base stations (BSk). I64692.doc -33- 201246954 In step 1404, a plurality of base stations 3 as a function of the servo base station 4 receive a plurality of coupled load indication items from a plurality of base stations 1106, and the base stations are maintained at Among the active base stations of the plurality of mobile stations, the mobile stations are servoed by the base stations 1104. In step 1406, the base stations determine the maximum tolerable coupled load 1112 caused by the plurality of mobile stations of the plurality of base station servos based on the requirements and priorities of the plurality of mobile stations of the base station servos. The scheduler function in each base station j functioning as a non-serving base station reserves the maximum tolerable coupled load capacity 1112 (MaxTolerable Coupled Load jk) for a plurality of mobile stations of a plurality of other base station servos. The base stations forward the maximum tolerable coupling load to the other base stations at step 1408'. Therefore, it serves as a base for the function of non-feeding base stations. The maximum tolerable coupling capacity 1112 (MaxT〇le^bk CoupledLoad jk) is forwarded to the servo base stations k. In step 1410, the g base stations functioning as the servo base station receive the maximum tolerable light load loads HU from the plurality of non-serving base stations 11G6, and the non-lexical base stations 1106 are maintained at a plurality of mobile stations 11 In the role of the base station group 2, the mobile stations 11〇2 are convinced by the base stations. . In step 1412, the base stations calculate the available quantities of the plurality of mobile stations at the base station, and the mobile stations such as the shai are served by a plurality of base stations, and the base stations serve as non-lexical base stations for certain mobile stations. The function of i 1〇6, and the function of several other base stations as the feeding base station 11〇4. After retaining capacity for all the mobile stations of other base stations (10), several base stations functioning as non-ship base stations calculate their available capacity according to the following formula: I64692.doc 8 • 34 · 201246954

Cavj » Cevj -f^Moaol^ableCoupIedLoadfl where Cavj is the available capacity for scheduling the mobile stations in the non-servo base station, and the base station j serves as the servo base station for the mobile stations. The factor f represents how the base station j maintains the non-responsible scheduling capacity for the mobile stations. /=0 means that the base j does not retain any non-scheduled capacity for the mobile stations, and the household 1 represents the most conservative situation of the base station j. At step 1414, the base stations manage a number of reverse link transmissions by allocating a number of reverse link resources based on the maximum tolerable coupled load 1112 received from the other plurality of base stations. In the second exemplary embodiment, the base stations k allocate a plurality of reverse link resources by allocating a plurality of data transmission rates to all of the mobile stations served by the plurality of base stations k according to the following criteria: Σ Co ^ledLoad f N,) g) < MaxTohrabkCotpledLoadjn 1+Smr^iC/P)) * wherein CoupledLoad and Sinr are defined as described above to the first exemplary embodiment. Therefore, each base station determines the coupling load caused by several mobile stations of the base station servos at the base station, and reserves the capacity for those mobile stations to deliver the maximum tolerable coupled load to those mobile stations. All servo base stations, and based on the available capacity of several mobile stations being served by the base station' and the maximum tolerable coupled load (several non-servo base stations receiving several mobile stations from the base station servo) Allocate several reverse link resources. 15 illustrates a portion of a communication 164692.doc-35-201246954 system 100 in a block diagram illustrating a plurality of geographically dispersed base stations (1〇2) in accordance with a third exemplary embodiment of the present invention. · 1〇8) Providing communication services to several mobile stations (14) In most cases, the communication system 100 includes a plurality of base stations (1504, 1506) 'the base stations are strategically positioned, and the number is A wireless communication service is provided to a number of mobile stations 1502. Depending on the quality of the communication channel between a mobile station 15〇2 and the base station (1504, 1506), the mobile station 15〇2 can communicate with at least one base station (1504, 1506) at any particular time. As described above, each of the mobile stations 1502 maintains a set of active base stations, wherein the communication link between the mobile station 1502 and the base stations (15() 4, 15() 6) is suitable for communication. One of the base stations in the active base station is implemented as a servo base station 1504, and the other base stations in the active group are non-servo base stations 1506. Such situations typically occur during a soft handover, where a single base station performs the function of a servo base station 15〇4, while at least one other base station is a non-servo active base station 1506. However, the condition is considered to be correct, the role of the servo base station 1504 is transferred to a base station (meaning that handover occurs) that was previously functioning as the base station 1506 in the non-servo role. For simplicity, FIG. 15 includes several blocks to It represents a mobile station 15〇2 and two active base stations (1504, 1506) including a base station 1504 and a non-servo base station 15〇6. Those skilled in the art will appreciate from the teachings and the prior art that a base station 300 can function as a servo base station 1504 for a number of mobile stations 5 〇 2, and any mobile station 15 〇 2 can maintain any number of functions. Central base station (1504, 1506). Thus, the teachings discussed herein can be extended to any number of mobile stations 1 502, servo base stations 5〇4, and non-servo base stations 15〇6. As will be further discussed below, these other bases: Taiwan 3 II I64692.doc • 36· 201246954 may not be enough to communicate with a sufficient quality mobile station 1502 to become an active base station, but can be incumbent In this role, the base station (15〇4, 1506) experienced the contribution. The cage base station 15Q4 can be the above-mentioned base station 1〇2, the second base station 1〇4 or the third base station 1〇6 with reference to FIGS. 1 to 4, and the servo base station 5丨4 function can also be used. As another mobile station (not shown in Figure 5), the non-service base station 15〇6, and the non-feeding base station 15〇6 function can be used as several other mobile stations (not shown in Figure 15) (4) service base Taiwan 15〇4. Therefore, a base station (1〇2·1〇8) function can also be used as a feeding base station 15G4 for some mobile stations 1502, and as a non-feeding base station for several other mobile stations. Because of &, in most environments, the functions of each of the base stations (15, 4, 15〇6) described herein may be performed by other such base stations. In the third exemplary embodiment, a base station 300 functioning as a non-servo base station 1506 estimates an expected coupled load measurement caused by a plurality of mobile stations 1502 of a plurality of other base stations 15〇4, and couples according to the expectation. Load 1508 allocates several reverse link resources. Therefore, in the third exemplary embodiment, direct or unambiguous communication is not transmitted through the backhaul transmission between the servo base station 15〇4 and the non-servo base station 5〇6. The feeding base station 1504 schedules all mobile stations 15G2 and provides services according to the channel quality of the traffic channel received at the (4) service base station. After the estimation of the non-feeding base ^ 15G6 is carried out, the number of mobile stations (not shown) of the non-feeding base station 15_ is scheduled, and the expected load system is all unscheduled. The process (ie, feeding) is contributed by the mobile station (4) that is transmitting the reverse link signal 210, and the reverse link signal 21 is received and processed by the non-serving base station. In some environments, the expected coupling load 15〇8 estimate made by the non-164692.doc -37-201246954 servo base station 1506 is based on the first of several mobile stations 1502 in the soft handover of the non-servo base station 1506. Transfer the resulting measurements. The estimate includes the total expected coupled load from all mobile stations 5, 2, which are non-servo base stations 1506 of the mobile stations 1502, and are served by any other base station. Figure 16 is a flow chart illustrating a method of managing reverse link resources (implemented in a base station 300) in a communication system of a plurality of geographically dispersed base stations, in accordance with a second exemplary embodiment of the present invention. In step 1602, a non-servo base station 15〇6 measures at least one coupled load parameter, and the five-parallel coupled load parameter is caused by reverse link transmission of a plurality of other mobile stations 1502 of the plurality of base stations 丨5〇4 servos. In the third exemplary embodiment, during each transmission interval, the non-servo base station j measures the navigation SNR ((Ecp/Nt) ji) and the transmission rate received on the control and audio channel, which are all The active group has a BSj but is not contributed by the BSj schedule. According to (ECP/Nt) ji and the transfer rate Ri, the total coupled load (TotCoupledLoadj) during the current transmission (indexed by n) is calculated according to the following formula:

TotC^jup]edLoadj{n\«

SinrjtC^jCJF)) l^nrji(Rh(C/P)) where 〇 〇 ((尽, (C/JO)) (£v /ΛΓ,):·,.(1+(77/3⁄4马)+ (£:/«/»)) At step 1604, the base station 1506 estimates the expected light load for the future transmission based on the measured at least the previously transmitted total consumed load'. Several techniques may be used - The estimated face-to-day transmission load 164692.doc 8 -38 · 201246954 (TotCoupledLoadj[n+l]), the specific technology depends on the type of communication system ι〇〇, the reverse link (210, 212) The transmission structure and other factors depend on a suitable technique including using the measured TotCoupledLoadj[n] as the expected value of TotCoupledLoadj[n+l]. Another technique involves calculating a filtered average (Exp_TotCoupledLoadj) to estimate the following formula TotCoupledLoadj[n+l]: Ε3φ ^ TotCoupIedLoad^[n+1]w ai^QtC〇upledLoadi\n - f] where, · is the filter coefficient ' and L is the filter length. Several signals can be used Processing the system to estimate the coefficients ^. In addition, the coefficient α can be variably adjusted to make the estimated CotCoupledLoadj[n+l] and the actual measurement The least square error between TotCoupledLoadj[n+l] is minimized at time instant n+1. Therefore, the total coupled load for at least one previous transmission is determined, which is the inverse of several mobile stations of several other base station servos. This is caused by the transmission of 21 。. The estimate expects the coupled load to be based on the previous total coupled loads and can be set equal to one of the previously coupled loads, or by processing a plurality of coupled loads during the previous transmission. Several other techniques may be utilized in some environments to determine the estimated expected face-to-load based on a number of previous coupled loads. In a number of systems utilizing hybrid ARQ on reverse link transmission, a packet is executed by multiple transmissions. The transmission until the packet is successfully received. If the delay between the first and the individual transmissions remains fixed, the transmission of a packet and its subsequent transmission is called an ARQ situation. Since I retransmits I, the subsequent ARQ situation is 164692. Doc •39- 201246954 There is a strong correlation between the light load during the period. To exploit this correlation, several previous periods during the same ARQ case can be used. The output estimate

TotCoupledLoad 〇 In step 1606, the base station expects to couple the load 15〇8 according to the estimation, and manages the reverse link transmission of the plurality of mobile stations of the base station servo. In the third exemplary embodiment, the non-feeding base The station j determines the estimated expectation, Est_T〇tCoupledLoadj[n+l]il.^^T^^*, to schedule several mobile stations having the base (2) as the servo base station according to the following formula:

Cav corpse Cavj-Est_TotCoupledLoadj These base stations j allocate these reverse link resources so that the total available capacity will be exceeded in the third exemplary embodiment. Therefore, in the third exemplary embodiment, a plurality of base stations functioning as the non-servo base station 15〇6 estimate the expected coupling load caused by all the mobile stations 15〇2 of the servos of the other plurality of base stations 1504 and consider the It is always expected that after the load is engaged, the reverse link resource is allocated to the non-feeding base station to write the number of mobile stations according to the remaining total capacity of the base station. It is apparent that other embodiments and modifications of the present invention will be immediately apparent to those skilled in the art. The above description is illustrative and not limiting. The invention is limited only by the scope of the following claims, which, when taken in conjunction with the above description and drawings, include all such embodiments and modifications. Therefore, the scope of the invention is not to be determined by reference to the following description, but instead BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating a communication system having a plurality of geographically dispersed base stations; FIG. 2 illustrates the communication system in a block diagram according to several exemplary embodiments of the present invention. a part of which a single mobile station communicates with a plurality of base stations, the functions of which are a servo base station and a non-feeding base station; FIG. 3 illustrates a base station in a block diagram according to an exemplary embodiment of the present invention; 4 exemplified relationship between the mobile stations and the base stations in accordance with several exemplary embodiments of the present invention; FIG. 5 illustrates, in a table, the mobile stations and the bases in accordance with several exemplary embodiments of the present invention. Exemplary relationship between stations; FIG. 6 illustrates an exemplary distribution of a reversed link load and a reverse link coupled load at a base station in accordance with several exemplary embodiments of the present invention; FIG. 7 is a first exemplary embodiment of the present invention, A portion of the communication system is illustrated in a block diagram; FIG. 8 is a flowchart illustration of determining the execution of an expected coupled load at a servo base station in accordance with a first exemplary embodiment of the present invention. FIG. 9 is a flowchart illustrating a method of determining an available capacity at a non-servo base station according to a first exemplary embodiment of the present invention; FIG. 10 illustrates managing a plurality of inverses in the communication system according to the first exemplary embodiment of the present invention; Flowchart for linking channel resources; FIG. 12 is a block diagram illustrating a portion of the communication system according to a second exemplary embodiment of the present invention; FIG. 12 is a flowchart illustration of managing reverse connections, channels according to a second exemplary embodiment of the present invention; Method, which is implemented in the base station 164692.doc 201246954 as a function of the base station; FIG. 13 is a flow chart illustrating management in a base station functioning as a non-service base station according to a second exemplary embodiment of the present invention; Method for reversely connecting channel resources; FIG. 14 is a flow chart illustrating a method for backing up channel resources in a communication system having a plurality of geographically dispersed base stations according to a second exemplary embodiment of the present invention; FIG. Invented in a third exemplary embodiment, a block diagram illustrates a portion of a venting system that utilizes a plurality of geographically dispersed base stations a plurality of communication services to a plurality of mobile stations; and FIG. 16 illustrates, in a flow chart having a plurality of geographically dispersed base stations, a management reverse link resource in a base station according to a third exemplary embodiment of the present invention Method] [Main component symbol description] 100 communication system 102, 104, 106, 108, 300 base station 110, 1 12, 114, 202, 702, mobile station 1102, 1502 204, 704, 1104, 1504 servo base station 206 , 706, 1106, 1506 Non-Servo Base Station 208 Backhaul Transmission 210, 212 Link Channel 302 Wireless Transceiver 304 Processor • 42- 164692.doc 8 201246954 306 712, 1508 710, 1110 1112 Backhaul Transmission Interface Expected Coupling Load Coupling Load Indication Maximum tolerable coupling load 164692.doc 43-

Claims (1)

201246954 VII. Patent application scope: 1. A method for controlling reverse link communication in a distributed base station communication system, which is implemented in a base station of a servo base station as a mobile station, the method includes: One of the mobile stations, another base station of the non-servo base station, receives a maximum tolerable coupled load representing one of the maximum coupled loads, the maximum tolerable coupled load being determined to be the maximum load retained at the other base station. Caused by the reverse link transmission of the plurality of mobile stations of the base station; receiving a coupled load indication item 'which represents one of the coupled load parameters measured by the mobile station at the other base station; and according to the maximum The coupled load can be tolerated to manage the reverse link transmission of the mobile station. 2. The method of claim 1, further comprising: allocating a plurality of reverse link resources between the plurality of mobile stations according to the maximum tolerable coupled load indicator, each of the plurality of mobile stations being served by the base station And used to maintain the other base station in a group of active base stations. 3. The method of claim 2, wherein the allocating the reverse link resources comprises: calculating, at the other base station, one of the plurality of mobile stations causing one of the expected light load, each expected coupled load being corresponding to the The S-parallel load indicator of the mobile station and one of the mobile station transmission parameters; and the control of the reverse link transmission of the mobile stations, the sum of the plurality of expected coupled loads corresponding to the other base station is less than the Maximum tolerable coupling 164692.doc 201246954 combined load indicator. 4. The method of claim 3, wherein the mobile station transmission parameter comprises a data transmission rate from the one of the reverse link transmissions. The method of claim 4, wherein the transmission power level is transmitted; the transmission parameter includes the reverse 6. As in the method of claim 5, each of the two base load indicators of the base station represents the other - 7. If the request is dry (four) body a _ « 1L,. The maximum ku-coupling load is represented in the *$· ilf7! "αΓ ^ τι The energy-to-noise plus interference is more tolerable than another base station (ECp/lsit) 〇8. Z--distributed base The central communication system controls the location of the communication link, which is implemented in a base station - a non-servo base station - the base station, the method includes: forwarding the light load indicator to another base station, The load item represents the measured load-converting load parameter at the base station, which is caused by the reverse link transmission of another 0 servo one of the mobile stations, and the line maintains the base station in the 'group-acting base station; And, the maximum tolerable light load is transferred, which represents the maximum handle load reserved by the mobile station at the base station. 9. The method of claim 8 further comprising: according to the base station servo The reverse link resources of several other mobile stations determine the maximum tolerable coupled load. 1 〇· § 青求Jg Q 夕, _!_ method' where the maximum tolerable coupled load is further determined to include: 164692.doc *2* 8 201246954 determines the maximum tolerable coupled load according to the transmission priority order of the other plurality of mobile stations of the base station servo. The method of Δ月9, wherein the coupled load indicator is represented at the base. Energy-to-noise plus interference ratio (Eep/Nt) 12. The method of claim 9, wherein the maximum tolerable consumable load represents a noise-to-interference plus ratio of each wafer energy that can be tolerated at the base D (ECp/Nt) 〇13. A base station comprising: a control interface configured to receive a coupled load indicator from a coupled load parameter from another base station, the coupled load parameter being in the other The base station measures and is caused by a reverse link transmission of the mobile station that maintains the other base station in a group of active base stations, the control interface is further configured to receive a maximum tolerable coupled load, representative of a maximum coupled load at one of the other base stations, the other base station serving as a non-servo base station of the mobile station, the maximum tolerable coupled load being determined to be at the other base The maximum load retained by the plurality of mobile stations of the base station servo; and a processor configured to allocate a plurality of reverse link resources according to the maximum tolerable coupled load. 14. The base station of claim 13 The processor is configured to allocate reverse link resources among the plurality of mobile stations according to the maximum tolerable coupled load to allocate reverse link resources. 15. The base station of claim 14, wherein the processor is still configured The reverse link resources are allocated by: 164692.doc 201246954 Calculating one of the expected coupled loads caused by each of the plurality of mobile stations at the other base, each expected coupled load being based on the corresponding mobile station The coupled load indicator and one of the mobile station transmission parameters; and controlling the reverse link transmission of the mobile stations, the sum of the plurality of expected coupled loads corresponding to the other base station being less than the maximum tolerable coupled load . 16. The base station of claim 15 wherein the mobile station transmission parameters comprise a data transmission rate from a reverse link transmission of one of the mobile stations. 17. The base station of claim 16, wherein the mobile station transmission parameters comprise a transmission power level. 18. The base station of claim 17, wherein the coupled load indicator represents a noise-to-interference plus interference ratio (Ecp/Nt) for each of the wafers measured at the other base station. 19. The base station of claim 17, wherein the maximum tolerable coupled load represents a per-channel noise-to-interference ratio (Ecp/Nt) that is tolerable at the other base station. 20. A base station comprising: a communication interface configured to forward a coupled load indicator to another base station, the coupled load indicator representing one of the coupled load parameters measured at the base station, the coupling The load parameter is caused by the reverse link transmission of one of the servos of the other base station, and the mobile station maintains the base station in a group of active base stations, and the communication interface is configured to set a maximum tolerable coupled load Transferred to the other base station, the maximum tolerable load is represented by the base station for the reverse of the mobile station 164692.doc 201246954 link transmission while retaining one of the maximum coupling load; and a processor The configuration is such that the maximum coupled load is determined based on the reverse link resource requirement of the other plurality of mobile stations of the base station servo. 21. The base station of claim 20, wherein the processor is further configured to determine the maximum tolerable coupled load based on a transmission priority order of the other plurality of mobile stations of the base station servo. 22. The base station of claim 21, wherein the processor is further configured to determine the maximum tolerable coupled load based on a plurality of coupled load parameters transmitted by one of the mobile stations in reverse link, the mobile station Servo by the other base station. 23. The base station of claim 20, wherein the coupled load indicator represents a per-channel noise-to-interference plus interference ratio (Ecp/Nt) measured at the base port. 24. The base station of claim 20, wherein the maximum tolerable light load represents a noise-to-interference plus interference ratio (E〇p/Nt) of each of the wafers that can be tolerated at the base station. - a device for controlling reverse link communication in a distributed base station communication system 'in a base station of a feeding base station as one of the mobile stations', the device comprising: for use as a non-servo base station of the mobile station The other base station's maximum light load - the maximum tolerable load of the load ": the large tolerable coupled load is determined to be at the other base station = large load, which is operated by the base station Caused by the reverse link transmission of the station; the component for receiving a round load indication item's light load indication I64692.doc 201246954 represents one of the coupled load parameters measured by the mobile station at the other base station; And means for managing the reverse link transmission of the mobile station according to the maximum tolerable coupled load. 26. The apparatus of claim 25, further comprising: ???said according to the maximum tolerable consumption And means for allocating a plurality of reverse link resources between the plurality of mobile stations, wherein the plurality of mobile stations are servoed by the base station and used to maintain the other base station in a set of active base stations. 27. The apparatus of claim 26, wherein the means for allocating the reverse link resources comprises: means for calculating a load that is caused by each of the plurality of mobile stations at the other base station - expecting a face load Each of the expected handle loads is based on the loss load indication corresponding to the action σ and one of the mobile station transmission parameters; and the means for controlling the reverse link transmission of the mobile stations, The sum of the plurality of expected combined loads is less than the maximum tolerable coupled load indicator. 28. For the device of claim 27, wherein the 仃, 粁...^ the dedicated transmission wheel parameters include from the light. - the data transmission rate of the reverse link transmission. 29. The apparatus of claim 28, wherein the transmission power to the connection (four); the seventh movement transmission parameter comprises the reverse 30. Base station Each of the quantities is represented by the EJ/Et. 164692.doc 201246954. The device of claim 29, wherein the maximum tolerable coupled load represents each wafer that is tolerable at the other base station Energy-to-noise plus interference ratio (Ecp/Nt) 32. - A device for controlling reverse link communication in the decentralized base station (four) system, which is used as a mobile station - non-lexical base station a base station' the apparatus includes: means for forwarding a light load indicator to another base station, the coupled load indicator representing one of the coupled load parameters measured at the base station, the other base station The reverse link transmission of one of the mobile service stations causes the mobile station to maintain the base station in a set of active base stations; and for transmitting a maximum tolerable load-carrying component, the maximum tolerable refinement The load represents one of the maximum coupled loads at the base station due to the ones reserved by the mobile stations. 33. The apparatus of claim 32, further comprising: • means for determining the maximum tolerable coupled load based on reverse link resources of the plurality of other mobile stations of the base station. 3. The device of claim 33, wherein the means for determining the maximum tolerable coupled load further comprises: = a transmission priority order according to other mobile stations of the base station And the means for maximally tolerating the coupled load. 35. The apparatus of claim 33, wherein: "the item represents the mother-to-wafer energy pair of noise measured at the base. 36. The (CP 〇 可 可 谷 谷 轻 164 164 164 164 692 692 469 469 469 469 469 469 469 469 469 469 469 469 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The computer can read the media, and the code can be used as a base station of one of the mobile base stations of a mobile station for controlling reverse link communication in a distributed base station communication system. The code includes: Receiving, by another base station that is a non-servo base station of the mobile station, an instruction representative of one of the maximum coupled loads, the maximum tolerable coupled load, the maximum tolerable coupled load being determined to be at the other base The maximum load retained by the reverse link transmission of the plurality of mobile stations of the base station; receiving an instruction to couple the load indicator, the coupled load indicator representing the other base station One of the coupled load parameters measured by the mobile station; and instructions for managing the reverse link transmission of the mobile station based on the maximum tolerable coupled load. 38. A computer readable medium in which the program code is stored, the program The code can be executed as a base station of one of the non-servo base stations of a mobile station for controlling reverse link communication in a distributed base station communication system, the code comprising: for transferring a coupled load indicator An instruction to another base station, the coupled load indicator representing one of the coupled load parameters measured at the base station, which is caused by a reverse link transmission of one of the base station servos, the mobile station The base station is maintained in a group of active base stations I64692.doc 201246954; and instructions for transmitting a maximum tolerable coupled load, the maximum capacity The forbearance coupled load represents one of the largest bases in the base station due to the reservation of the mobile stations. 164692.doc