CN1780457A - Wireless Channel Resource Allocation Method - Google Patents

Abstract

A method for allocating wireless channel resources based on time-frequency, comprising the steps of: centrally allocating and managing wireless channel resources by a radio network controller; and providing channels to base stations and mobile stations for communication by adopting a hybrid allocation method combining fixed allocation and dynamic allocation. The present invention uses different orthogonal code sequences to distinguish different cells, and time slots and frequency resources can be jointly allocated to each cell. In a TDD mobile communication system, using the channel resource allocation method of the present invention can reduce mutual interference between mobile system cells, eliminate interference between uplink signals and downlink signals, and fully use channel resources.

Description

Wireless Channel Resource Allocation Method

technical field

The present invention relates to channel resource allocation and transmission technology in a mobile wireless communication system, in particular to a method for cell channel division in a Time Division Duplex (abbreviated as TDD) mobile communication system.

Background technique

In a mobile communication system, channel allocation is a part of wireless resource allocation, which is related to the occupied resources of each cell, service flow, and inter-cell and intra-cell interference. The cellular mobile communication system needs to allocate wireless channel resources to each base station and mobile station in the network so that they can complete uplink and downlink service transmission. The TDD-based mobile communication system can flexibly allocate uplink and downlink channels according to service requirements, and realize effective transmission of symmetric and asymmetric services.

The goal of channel allocation is to maximize the use of wireless channel resources and transmit data signals at high speed under the condition of as little interference as possible. Especially in an Orthogonal Frequency Division Multiplex (OFDM for short) system, frequency, time slot and code resources need to be reasonably configured in order to obtain greater resource utilization. In order to effectively utilize the resources of the mobile communication system, radio resources and network resources can be used reasonably by adopting centralized resource management. Considering the interference between cells, the resources occupied by each cell are different, and the effective separation of signals of each cell can be realized through a certain identification.

Channel allocation methods generally include fixed channel allocation, dynamic channel allocation and mixed channel allocation.

Fixed channel allocation (FCA for short) is to allocate channel resources fixedly to each base station according to the propagation characteristics and traffic distribution characteristics of each cell. However, the problem it brings is not conducive to system business and environmental changes.

A dynamic channel allocation scheme (DCA for short) is to place all channels in a resource pool. When a user in a certain cell needs a channel to transmit signals, the radio resource controller executes or refuses to allocate a channel to the user in the cell according to resource usage conditions. Although DCA can provide quite high resource utilization efficiency and flexible business adaptability, it is difficult to apply DCA in practical systems due to the high computational complexity of its algorithm under high load.

In order to overcome the defects of FCA and DCA, hybrid channel allocation (referred to as HCA) divides the channel into two parts: fixed part and dynamic part. It combines the characteristics of FCA and DCA, and can realize the dynamic allocation of certain channel resources with limited computational complexity.

In order to further illustrate the mixed channel allocation method, Fig. 1 describes the resource allocation structure of the mobile communication system. The allocation of wireless system resources can be realized through different divisions of code domain, frequency domain and time domain. Channel codes are used to distinguish different cells. In a group of mutually orthogonal code sequence sets, RNC can allocate different selected channel codes to each cell during network planning. In order to meet the needs of service transmission, frequency domain resources and time domain resources - frequency band and time slot should be flexibly allocated to each cell user in the process of information transmission. In FIG. 1 , 10 represents a time domain resource, which divides the time domain space by frame, and a frame time interval is composed of multiple time slots. 20 represents the frequency domain, and a frequency band may be divided into multiple sub-frequency bands. 30 represents a code field, and different dedicated code sequences can be configured for each cell. For example, the 40th cell #1 is configured with a C1 code, the 42th cell #2 is configured with a C2 code, and the 48th cell #max (max) is configured with a Cmax code, etc.

In existing resource management processing methods, only single cell resource scheduling is often considered, and different resource requirements of multiple cells are rarely considered, or uplink and downlink resources are designed separately. In particular, there is a lack of overall consideration for issues such as the flexibility of multi-cell channel allocation in the TDD system and the reduction of mutual interference. The adjustable characteristics of system resources of TDD are not fully reflected. For example, when using the FCA algorithm, due to the different traffic of each cell, the channel resources of some cells may not be sufficient, while the channel resources of other cells are in an idle state. When using the DCA method, the amount of calculation is too large, and the network management is complicated. Especially it is more difficult to realize in the case of heavy traffic in each cell. Although the HCA method can integrate and solve various problems, this method generally meets the traffic volume of the cell by borrowing channels from adjacent cells; or sets aside a small public part as a public area, and each cell applies for occupancy according to its traffic volume. This will result in problems such as limited range of business volume adjustment and inflexible resource control.

Contents of the invention

The purpose of the present invention is to provide a wireless channel resource allocation method, according to the mixed channel allocation principle of centralized control, a channel allocation method combining three factors of channel code, frequency bandwidth and time slot is provided. It can flexibly assign channels and reduce inter-cell interference. At the same time, the information transmission rate and the effective utilization rate of channel resources are improved.

In order to achieve the above object, a new hybrid wireless channel resource allocation method includes steps:

The wireless network controller centrally allocates and manages wireless channel resources;

A hybrid allocation method combining fixed allocation and dynamic allocation is adopted to provide channel resources to base stations and mobile stations for communication.

The present invention adopts different code sequences to identify different cells, and a channel allocation method of time slot and frequency resources to allocate wireless resources in real time. In a TDD mobile communication system, using the channel resource allocation method of the present invention can effectively allocate wireless resources in a cellular system communication system, reduce mutual interference between cells in the system and interference within a cell, and greatly improve the utilization rate of wireless channel resources. It fully reflects the particularity of TDD and broadband mobile communication.

Description of drawings

Fig. 1 is a mobile communication system resource allocation framework;

Fig. 2 is a schematic diagram of a mobile system network;

Fig. 3 (a), (b) is the uplink and downlink channel allocation process;

Figure 4 wireless frame structure;

Fig. 5 (a), (b), (c) is cell resource allocation situation;

Figure 6 (a), (b), (c) is based on the first, second, third cell uplink channel and downlink channel resource allocation examples;

Fig. 7 is a wireless resource allocation table;

Figure 8 is a resource allocation process.

Detailed ways

The present invention adopts a method that a radio network controller (RNC for short) centrally controls radio channel resources. It can efficiently utilize radio resources. Reduce conflicts, waste and interference during channel usage. Fig. 2 has described this kind of mobile communication wireless channel assignment structural method that adopts centralized control. Assume that when the cell is established, the RNC has assigned a different identification code to each cell it controls. An 80 RNC manages and controls a plurality of sub-districts (90,92,94 among Fig. 2), when mobile user MS (54,62,72 among Fig. 2) needs to send data in each sub-district, they will respectively send to its corresponding The base stations (such as 50, 60, 70 in FIG. 2) send channel allocation requests. Each base station reports its request to the 80RNC, and transmits the channel resource-related information obtained from the 80RNC to the mobile station.

The present invention provides a new allocation method of channel resources, which can be used in single cell and multi-cell situations: centralized control of wireless resources, mixed allocation of transmission channel resources, and dynamic adjustment of resources in each cell within one frame. It can meet both symmetrical and asymmetrical business needs.

The working process of its uplink and downlink business transmission can be illustrated with Figure 3 (a) and (b).

Firstly, the radio network controller RNC 120 configures dedicated code sequences used to identify different cells when establishing a cell, and requires that the dedicated codes of each cell be orthogonal to each other. Then, the radio network controller collects 110 the traffic volume of the base stations under its control; through 130 information interaction, it is determined that the cell occupies channel resources. 120 The radio network controller establishes and maintains a channel resource allocation table. This table stores data such as which resources are used for uplink services of which cells, which resources are used for which downlink services of cells, which resources are not occupied, and location information of switching points. Among all time-frequency resources, channel resources of some frequencies and time slots are fixedly allocated to all cells; channel resources of other frequencies and time slots are dynamically allocated to each cell. At the same time, each cell base station obtains the channels used by the cell and related information through 130 .

Time-frequency resources are divided into time-frequency blocks (TFB for short) for channel transmission according to time slots and frequency bands. A TFB can contain one or more symbol intervals and one or more subcarrier bandwidths. When a 100 mobile station (or 110 base station) needs to transmit services to its base station (or to a certain mobile station), the 100 mobile station will send a 140 traffic channel request to the 110 base station (or the base station will send a request to establish a communication with the mobile station) order to connect). 110 base stations send 150 channel allocation requests to 120 radio network controllers according to the channel usage situation of this sub-district, 120 radio network controllers inquire about radio resource channel usage status, if there is available time-frequency block in uplink (or downlink), RNC just dynamically The allocation region assigns one or more time-frequency blocks as the transmission channel of the cell. Then, 120, the radio network controller sends 160 channel confirmation information to the 110 base station, and at the same time modifies the channel resource allocation table. According to 120 radio network controller confirmation, 110 base station will assign one or more time-frequency blocks (TFB) as its dedicated traffic channel for communication with 100 mobile station through 170 message. If there is no available time-frequency resource at present, the RNC will reject the traffic channel allocation request. The base station will apply for a traffic channel during the next frame transmission.

When multiple users make channel requests at the same time, channel allocation should be based on mobile user priority, QoS status, service type, service flow and other factors to assign or reject corresponding assigned time-frequency blocks in sequence and resource usage.

Figure 4 shows the wireless frame structure of the cellular mobile communication system. The information distribution and format of each frame can be illustrated with FIG. 5 . The method of the invention divides a frame of channel resources into two parts: a fixed resource allocation area and a variable resource allocation area. First, the front part of a frame is arranged as a fixedly allocated channel resource, which consists of two partial time slots and frequency resources. The first part of time slots and frequencies are fixed for downlink channel transmission signals, and the second part of time slots and frequencies are fixed for uplink channel transmission signals. These fixed channels are generally used to disseminate control information, such as frame header signs, synchronization signals, pilot signals and system information. There is a Guard Period (GP for short) between the time slots of the fixed downlink channel and the fixed uplink channel. The size of the guard interval is limited by the size of the cell radius.

The time slots and frequencies at the rear of a frame belong to the variable resource allocation area. Within this region, each time-frequency block can be allocated dynamically. Some time slots may be allocated as channels for uplink and other time slots may be allocated as channels for downlink. In the same time slot, some frequencies can be allocated for uplink channels and other frequencies can be allocated for downlink channels. Channels in the variable allocation area are generally used to transmit service information and control signaling (such as power control information, training sequences, and other control information indications, etc.).

In the method of the present invention, each frame has two switching points between the time-frequency block of the uplink channel and the time-frequency block of the downlink channel. The first switching point is a fixed switching point, which is located between the first part of downlink time slots and the second part of uplink time slots in the fixed resource allocation area. The second transition point is the variable transition point, which can be at any frequency and slot location within the variable region. The time-frequency block (TFB) in the dynamic allocation area is divided into two parts, the uplink TFB and the downlink TFB, through the position of the switching point. Assuming that the dynamic switching point is known, the TFBs located above and to the left of the switching point are used for upstream; the TFBs located below and to the right of the switching point are used for downstream.

For a certain cell, the downlink TFB and uplink TFB should be arranged in different time slots. That is, in a time slot, if a part of TFBs is arranged to transmit uplink signals, other part of TFBs cannot be arranged to transmit downlink signals; and vice versa.

For different cells, in one time slot, a part (or all) of TFBs can be used to transmit uplink data of some cells. Part (or all) of the TFBs on the other side of the switching point can be used by other cells to transmit downlink data.

One TFB block can be used by multiple cells to transmit information. However, it is required that a TFB can only transmit signals in one direction in one frame. That is to say, each TFB either transmits an uplink signal or a downlink signal. It is not allowed in a TFB that some cells transmit uplink signals while other cells transmit downlink signals; or vice versa.

In order to meet the requirements of synchronization and cell size, a guard interval (GP) is required between the time slots of the first part (for downlink signal transmission) and the time slots of the second part (for uplink signals).

Considering that each time slot may transmit uplink and downlink signals within a variable range, in order to reduce interference, a small idle gap is reserved between each time slot.

There are two switching points between upstream TFB and downstream TFB signals. The position of the first switching point is between the first part of time slots (downlink signals) and the second part of time slots (uplink signals) in the fixed resource allocation range. It is a fixed transition point. The second transition point is within the scope of dynamic resource allocation and is a moving mutable transition point. Its position moves within the frequency domain and time domain of the variable region according to the ratio of uplink TFB and downlink TFB.

During transmission, uplink channels and downlink channels are allocated according to different traffic changes.

Therefore, between different frames, the proportion of downlink TFB and uplink TFB is changed to meet the conditions of symmetrical and asymmetrical services.

This hybrid channel allocation algorithm can be further described with FIG. 5 . Figure 5 shows the results of RNC management and configuration of radio resources. The channel code of each cell and the channel resources used are recorded in the wireless channel resource configuration table. The table also stores the positions of the up and down variable switching points. There are three cell resource allocation forms of variable switching points: Fig. 5 shows that when the transmission mode of the invented method is adopted, the variable switching points occupy different time slots; the variable switching points occupy multiple time slots as shown in Fig. 5(a), The variable conversion point occupies a time slot as shown in Figure 5(b), and the variable conversion point does not occupy a time slot as shown in Figure 5(c).

It is assumed that the RNC manages K cells in total, and the channel codes of each cell can be allocated fixedly. For example, the channel code of the kth cell (1≤k≤K) is known to be Ck. There are T time slots and F sub-bands in each frame. The range of variable time slot i is I _d ≤ i ≤ I _u ; the range of frequency j is f _n ≤ j ≤ f _m . The switching point of the uplink and downlink TFBs is (i _sp , j _sp ).

多小区下行使用的TFB，472

多小区上行使用的TFB，474 单小区下行使用的TFB，476

单小区上行使用的TFB。478

各小区未使用的TFB。430是固定转换点，440是可变转换点。420是保护间隔。在一帧内的传输结构，可根据下述方法安排其信道。In Figure 5, 470

TFB used in multi-cell downlink, 472

TFB used by multi-cell uplink, 474 TFB used in the downlink of a single cell, 476

TFB used for uplink of a single cell. 478

Unused TFB of each cell. 430 is a fixed switching point, and 440 is a variable switching point. 420 is a guard interval. For the transmission structure within a frame, its channels can be arranged according to the following method.

1) Determine the location of the fixed channel allocation of each cell and the range of the uplink time-frequency block and the downlink time-frequency block.

2) According to the channel requirements of each cell, determine the best variable switching point between the uplink time-frequency block and the downlink time-frequency block.

3) Within the variable allocation range of uplink and downlink channel resources, time-frequency blocks at different positions relative to the variable switching point are used to transmit signals in different transmission directions.

In the variable range of uplink and downlink of a frame, the left side (front time slot) and upper side (larger frequency point) of the conversion point are used as uplink time-frequency blocks; small frequency point) as a downlink time-frequency block. (Note: It is also possible to place the TFB resources oppositely on the upper and lower sides of the conversion point.)

4) For a cell, the downlink time-frequency grid and the uplink time-frequency grid should be arranged in different time slots. For a time slot, a part of the time-frequency blocks are arranged for uplink data transmission, and another part of the time-frequency grid cannot be used for downlink data transmission. vice versa.

5) For different cells, in one time slot, a part of TFB is used to transmit uplink data of some cells, and another part of TFB can be arranged to transmit downlink data of other cells.

6) Allocation of channel resources occupied by each cell. And record the allocation result in the radio resource allocation table.

7) Repeat the process of 1)-6) when channel resource allocation in the next frame.

The resource configuration table in the resource manager in the radio network controller can be described with FIG. 7 . It records the TFB parameter table of the resource usage of each cell. The wireless resource configuration table includes 600 table header, 660 resource occupancy status, 680 table description and the like.

The 600 header includes system parameters (for example: distribution and quantity of time-frequency blocks, uplink and downlink TFB switching points, resource usage).

660 resource usage includes channel code allocation, occupancy status records the usage status of the time-frequency block, including the cell using the time-frequency block, transmission direction (uplink or downlink), fixed area or variable area.

Form 680 information includes form formulation and revision time, maintenance information, etc.

In order to further illustrate the channel allocation scheme, use FIG. 8 to describe the channel resource allocation process. In the present invention, the fixed channel resources of each sub-district are first configured by the RNC, such as the channel codes of each sub-district, frame headers, broadcast information, access methods and other public resources. Then, according to parameters such as business throughput and business type, calculate and count the uplink and downlink channel requirements of each cell. The uplink time-frequency block and downlink time-frequency block resource ranges are preliminarily divided in the variable channel allocation range. The time-frequency blocks of the uplink channel and downlink channel of each cell are arranged.

In the channel allocation process of each cell, the RNC first initializes each cell, and then arranges the time-frequency blocks in the dynamic area according to the business conditions of each cell; to distinguish which resources are used for uplink and which resources are used for downlink road. When a user in a base station cell sends a traffic channel request, its channel is arranged according to the following method.

1. The RNC configures basic channel resources for each cell: channel codes, fixed regional channel resources. Or obtain the basic channel resources of the cell where the traffic channel is changed.

2. The RNC determines the position of the variable switching point: according to the traffic volume and business type of each cell, determine the best variable switching point.

3. RNC or base station (BS) arranges downlink channel resources as follows:

1) The assignment of the TFB is determined by the position of the variable switching point.

a) All time-frequency bins after the switching time slot i _sp can be used as downlink TFB;

b) In the switching time slot i _sp , the time-frequency grid whose frequency point is smaller than j _sp can be used as the downlink TFB.

2) If the time-frequency block in the downlink allocation area is empty, the TFB can be assigned as a downlink TFB;

3) If the time-frequency block in the downlink dynamic allocation area has been used by downlink channels of other cells, the TFB can also be assigned as a downlink TFB shared by multiple cells;

4) If the above steps cannot complete the assignment of the downlink channel, it is necessary to re-determine the position of the variable conversion point in cooperation with the uplink channel requirement.

5) If the position of the variable switching point cannot be changed, the user may submit a new downlink channel allocation request in the next frame.

4. RNC or BS arranges uplink channel resources as follows:

1) According to the position of the variable conversion point, determine the assignment of the time-frequency block in the wireless channel resource table;

a) time slot before i _sp ; TFB can be arranged as a time-frequency block for uplink;

b) In the resource of time slot i _sp , the TFB whose frequency point is greater than that can be assigned as the time-frequency block for uplink.

2) If a time-frequency grid is in the uplink allocation area and is free, the time-frequency grid can be assigned as an uplink TFB.

3) If a time-frequency grid has been used by another cell's uplink channel, the time-frequency grid can be assigned as the shared uplink TFB of the cell.

4) If the above steps cannot complete the assignment of the uplink channel, it is necessary to re-determine the position of the variable conversion point in cooperation with the demand of the downlink channel.

5) If the position of the variable switching point cannot be changed, the uplink transmission request of the user in the cell will re-propose the uplink channel allocation in the next frame.

When configuring time-frequency grid resources for downlink and uplink transmission, the following measures should be taken to ensure the minimum interference within and between cells.

1) In a cell, the downlink time-frequency grid and the uplink time-frequency grid should be arranged in different time slots. For a time slot, a part of the time-frequency block is arranged for uplink data transmission, and another part of the time-frequency grid cannot be arranged for downlink data transmission. Conversely, if a part of the time-frequency block is arranged for downlink data transmission, another part of the time-frequency grid in the same time slot cannot be arranged for uplink data transmission.

2) For different cells, in an uplink and downlink conversion time slot, a part of the time-frequency grid is used to transmit the uplink data of some cells; the TFB on the other side of the conversion point can be arranged to transmit the downlink data of other cells .

3) A time-frequency grid cannot be used to transmit uplink data and downlink data at the same time.

Example

Referring to the accompanying drawings, an embodiment of the present invention is given below.

Figure 6 (a), (b), (c) shows an example of centralized control and allocation of mixed radio resources composed of three cells. The RNC controls 3 cells (cell 1, cell 2 and cell 3), and the characteristic codes of each cell are fixedly allocated in advance by the RNC. There is an 8×6 time-frequency block resource, and the uplink channel and downlink channel allocation should be basically determined according to business requirements. That is to say, there are 8 time slots and 6 sub-bands in each frame. According to the above-mentioned mixed channel allocation scheme, fixed and variable channel allocation ranges and positions of uplink and downlink switching points. The range of the fixed downlink time slot is the first time slot, and the frequency range is [1, 6]; the range of the fixed uplink time slot is the second time slot, and the frequency range of j is [1, 6]. The range of variable time slot i is [3, 8]; the range of frequency j is [1, 6]. The variable switching points of the uplink and downlink TFBs are between (4, 2) and (4, 3). Fig. 6 shows a frame of resource usage status of each cell.

1) For the three cells, the range of the 530 fixed channel is all the time-frequency blocks of the first two time slots, and all three cells use these resources. According to the channel requirements of each cell, the best variable switching point between the uplink time-frequency block and the downlink time-frequency block is determined. At the same time, a small amount of time gap and frequency band are reserved at the front of each time-frequency block as guard time and guard frequency band between two time-frequency blocks.

2) Within the range of 540 variable channels, each cell has the same uplink time-frequency block and downlink time-frequency block. The 550 variable switching point is located between TFB42 and TFB43. The left side (front time slot) and upper side (larger frequency point) of the point are used as uplink time-frequency blocks; the right side (rear time slot) and upper side (smaller frequency point) of the conversion point are used as downlink time-frequency blocks. Arrange the occupied channels of each cell. And the allocation result is recorded in the radio resource allocation table.

3) In the 540 variable channel range, there are three uplink time-frequency blocks occupied by cell 1: TFB32, TFB34, and TFB35. There are 23 downlink time-frequency blocks occupied by cell 1: TFB42, TFB41, TFB51, TFB53, TFB54, TFB56, TFB61-TFB66, TFB71-TFB76, TFB82-TFB86. Refer to Fig. 6(a) for an example of resource allocation of the uplink channel and downlink channel of the first cell.

4) In the range of variable channels, there are 6 uplink time-frequency blocks occupied by Cell 2: TFB31, TFB33, TFB34, TFB36, TFB45, and TFB46. There are 12 downlink time-frequency blocks occupied by cell 2: TFB52, TFB61-66, TFB73, TFB74, TFB75, TFB81, TFB84. Refer to Fig. 6(b) for an example of allocation of uplink channel and downlink channel resources of the second cell.

5) In the variable channel range, there are 8 uplink time-frequency blocks occupied by cell 3: TFB31-TFB36, TFB44, TFB45. For the 20 downlink time-frequency blocks occupied by cell 3: TFB56, TFB51, TFB61-TFB66, TFB71-TFB76, TFB81-TFB86. Refer to Fig. 6(c) for an example of allocation of uplink channel and downlink channel resources of the third cell.

The method for allocating mobile communication channels provided by the present invention. The effect is:

1. The method is very suitable for channel allocation in a TDD mobile communication system. It can flexibly adapt channel resources.

2. Identify the channel of the cell through the three-dimensional characteristics of channel code, frequency point and time slot. It is a hybrid channel allocation method. It can not only increase the flexibility of resource allocation compared with fixed channel allocation, but also reduce the computational complexity than dynamic channel allocation.

3. The method adopts centralized control and scheduling for wireless resources. Wireless network resource management is quick and easy.

4. There is only one large guard interval in the frame structure adopting the method, the resource utilization rate is high, and the corresponding transmission efficiency is also improved.

5. The method can flexibly allocate uplink channels and downlink channels for each cell, and satisfies the requirements of symmetrical and asymmetrical services well.

6. In this method, the inter-cell interference and the intra-cell interference are relatively small by rationally configuring time-frequency block resources.

7. This method includes the characteristics of dynamic channel allocation and fixed channel allocation, and the real-time allocation of channels can be completed by designing and adjusting different configurations of time slots and frequency resources. At the same time, this method is easy to implement in the system.

The method adopts a larger guard interval at the fixed conversion of the downlink time slot and the uplink time slot, thereby ensuring the propagation radius of each cell and meeting the transmission synchronization requirement of the TDD mobile communication system.

Claims (25)

1. one kind based on the time-frequency wireless channel resource allocation, comprises step:

Radio network controller is concentrated and is distributed and the management radio channel resource;

The mixed ways of distribution that adopts fixed allocation and dynamic assignment to combine offers the base station with channel and travelling carriage communicates.

2. by the described method of claim 1, it is characterized in that described radio network controller distributes wireless channel to comprise step:

When setting up, the sub-district assigns the private code of base station cell;

Set up the allocation of radio resources table according to each Zone situation;

The time-frequency piece of fixed channel is offered each sub-district;

The time-frequency piece of dynamic channel is offered each sub-district.

3. by the described method of claim 1, it is characterized in that described radio network controller collects each Zone situation, calculate and divide Radio Resource, and will distribute the time-frequency piece to send to each sub-district.

4. by the described method of claim 1, it is characterized in that described base station receives from travelling carriage " transmission channel request " signal, adds that with message this cell information is forwarded to radio network controller request allocation of channel resources may.

5. by the described method of claim 2, it is characterized in that described time-frequency piece resource comprises following content:

To be divided into a frame a period of time, divide some time slots in each frame;

One band frequency is divided into the plurality of sub frequency band;

6. by the described method of claim 5, it is characterized in that constituting a time-frequency piece by a time slot and one or more sub-band.

7. by the described method of claim 5, it is characterized in that described every frame channel resource comprises: fixed resource range of distribution and variable resource allocation zone.

8. by the described method of claim 7, it is characterized in that described fixed resource range of distribution comprises:

The channel resource allocation that is in first's time slot is given down link, is used for control channel and broadcast;

The channel resource allocation that is in the second portion time slot is given up link, is used to transmit access control and synchronizing signal.

9. by the described method of claim 8, it is characterized in that described control signals transmitted comprises position of conversion point information, system information, pilot signal and the control information in frame head sign, synchronizing signal, dynamic channel allocation zone.

10. by the described method of claim 7, it is characterized in that described variable resource allocation zone is used to transmit training sequence, power control information and other control information indication.

11. by the described method of claim 7, it is characterized in that between the up channel time-frequency piece of each frame and down channel time-frequency piece, two transfer points being set.

12., it is characterized in that by the described method of claim 11:

First transfer point is the fixed conversion point, between first's descending time slot and second portion ascending time slot of fixed resource range of distribution;

Second transfer point is variable transfer point, is positioned at any frequency and the time slot position of Variable Area.

13. by the described method of claim 8, it is characterized in that between the ascending time slot of the descending time slot of the first in fixed allocation zone and second portion, having at interval with protection; This protection length is at interval determined according to radius of society.

14., it is characterized in that keeping idle gap between described each time slot by the described method of claim 8.

15., it is characterized in that in the variable resource allocation zone time-frequency piece can only transmit the signal of a direction in a frame by the described method of claim 7.

16. by the described method of claim 7, it is characterized in that: in the sub-district, the down time-frequency lattice will be arranged in different time slots with up time-frequency lattice.

17., it is characterized in that on a time slot if a part of time-frequency piece is arranged for the transmitting uplink data of certain sub-district, other time-frequency lattice can not be arranged to downlink data transmission by the described method of claim 16; Vice versa.

18. by the described method of claim 12, it is characterized in that: for different sub-districts, on the conversion time slot of a up channel and down channel, a part of time-frequency lattice are used to transmit the upstream data of some sub-districts; TFB at the opposite side of transfer point can be arranged to transmit the downlink data of other sub-district.

19. by the described method of claim 2, it is characterized in that: described " allocation of radio resources table " comprises following content:

Gauge outfit, occupation condition, explanation of tables.

20. by the described method of claim 19, it is characterized in that described gauge outfit comprises the transfer point of the distribution of time-frequency piece and quantity, uplink and downlink time-frequency piece.

21., it is characterized in that described occupation condition comprises the behaviour in service of channel code distribution, time-frequency piece, sub-district, transmission direction, fixed area or the Variable Area of use time-frequency piece by the described method of claim 19.

22. by the described method of claim 19, it is characterized in that described explanation of tables comprises form braking time, form modification time, maintenance information.

23., it is characterized in that the private code of described sub-district is used to identify different districts, and each cell-specific sign indicating number is mutually orthogonal by the described method of claim 2.

24. by the described method of claim 1, it is characterized in that described base station needs the travelling carriage of service data transmission to its control, realize sending " transmission channel link establishment " signaling and give this travelling carriage, after obtaining this message authentication of travelling carriage, the base station is to radio network controller request allocation of channel resources may; Or, send " channel is set up request " to RNC according to this local resource operating position.

25. by the described method of claim 24, it is characterized in that the affirmation message of RNC is received in described base station after, send " traffic-channel assignment " signal to travelling carriage, radio communication is just carried out at the related service channel in travelling carriage and base station.

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