CN100551100C - Method for the terminal to send data on the indicated packet data channel - Google Patents

Abstract

The invention discloses a kind of terminal and send the method for data at indicated Packet Data Channel PDCH, this method comprises: A, communication system network identify USF for uplink state that the terminal setting corresponds respectively to the PDCH of terminal distribution in for the descending PDCH of the up PDCH correspondence of the low time slot of time slot number of terminal distribution; B, terminal are after the descending PDCH of up PDCH correspondence of the low time slot of time slot number of terminal distribution listens to USF at communication system network, send data by all the up PDCH for the up PDCH that is not higher than the USF correspondence that is listened to of terminal distribution.

Description

Method for the terminal to send data on the indicated packet data channel

technical field

The invention relates to the technique of allocating packet data channel (PDCH) in a communication system, in particular to a method for a terminal to send data on the indicated PDCH.

Background technique

At present, when a terminal in a communication system, such as a terminal in a General Packet Radio Service (GPRS) system or a Global System for Mobile Communications (GSM), wants to send data to the communication system network side, it first sends a data-carrying service to the communication system network side. Assignment of characteristic parameters Uplink channel request, the service characteristic parameters are the rate, delay and error rate of the data to be sent; secondly, the network side of the communication system allocates the uplink PDCH for the terminal according to the data service characteristic parameters received in the request Afterwards, the allocated uplink PDCH is indicated to the terminal; finally, the terminal sends data through the uplink PDCH indicated by the wireless communication system.

A time division multiple access (TDMA) in the circuit domain is divided into 8 time slots, and the same time slot allocated to each TDMA frame of the communication system is called PDCH, and the uplink channel is allocated to the terminal in the communication system in units of PDCH Yes, when the terminal has multi-slot capability, the network side of the communication system can allocate multiple (if the communication system supports 8 PDCHs, a maximum of 8) uplink PDCHs can be allocated to the terminal.

According to whether data can be sent and received at the same time, terminals can be divided into two types: type 1 terminals and type 2 terminals. For a type 1 terminal, it can only receive or only transmit at the same time, that is, a half-duplex terminal; for a type 2 terminal, it can receive and transmit at the same time, that is, a full-duplex terminal. Currently, the multi-slot levels are divided into 1-45 levels for type 1 terminals and type 2 terminals, as shown in Table 1.

Table 1

In Table 1, Tta represents the time required for the terminal to perform signal measurement of neighboring cells and is ready to transmit; Ttb represents the time required for the terminal to directly prepare for transmission without measuring neighboring cells; Tra represents the time required for the terminal to perform signal measurement of neighboring cells and be ready to receive The required time; Trb indicates the time required for the terminal to directly prepare for reception without measuring adjacent cells. a) 1 indicates frequency hopping, 0 indicates no frequency hopping; b) 1 indicates transceiving conversion when there is frequency hopping, and 0 indicates transceiving conversion when there is no frequency hopping; c) 1 indicates transceiving conversion when there is frequency hopping Sending and receiving transformation, 0 indicates that the sending and receiving transformation is performed when there is no frequency hopping. to is 31 symbol periods, which can be provided by the time advance (TA) offset. NA means no limit. Rx represents the number of downlink channel time slots, Tx represents the number of uplink channel time slots, and Sum represents the number of uplink and downlink channel time slots.

When the terminal is sending and receiving, it must meet the sending and receiving conversion time. At least one adjacent cell measurement is required for every reception and transmission, so it is not necessary to measure the adjacent cell signal during reception after measuring the signal of the adjacent cell during transmission, or to measure during transmission after measuring the signal of the adjacent cell during reception. Also, Tta and Tra are not less than Trb and Tta are not less than Ttb and Trb, so Tta and Trb can be regarded as a pair of transceiving transition time of the terminal; Ttb and Tra are another pair of transceiving transition time of the terminal.

The process of allocating an uplink PDCH to a terminal by the communication system network side is as follows: the communication system network side allocates a Temporary Block Flow (TBF) to the terminal, and the TBF specifies one or more uplink PDCHs that the terminal can currently use. A terminal in the communication system can use any uplink PDCH set by the network side of the communication system, but it must be controlled by the network side of the communication system, because multiple terminals in the communication system may use the same PDCH at different times or at the same time. Uplink PDCH. The network side of the communication system indicates one or more uplink PDCHs currently usable by the terminal through an uplink status flag (USF). The following describes in detail the concept of the PDCH set by the wireless communication system and how the USF indicates one or more uplink PDCHs that the terminal can currently use to send data.

Figure 1 is a schematic diagram of the PDCH set on the network side of the communication system: the network side of the communication system forms a PDCH with the same time slots of each TDMA frame, such as, i, i+1, ..., i+n, i+n+ Time slot 0 of one frame forms PDCH0, and when allocating uplink channel resources on the network side of the communication system, PDCH is used as a unit.

Figure 2 shows how the USF indicates one or more uplink PDCHs that the terminal can currently use: the TBF allocated to the terminal by the communication system network side is actually one or more uplink PDCH combinations that the terminal can currently use, such as: allocated for terminal 1 TBF is uplink PDCH0, uplink PDCH2, and uplink PDCH5. When USF indicates one or more uplink PDCHs currently available to the terminal, each downlink PDCH preset by the network side of the communication system has a USF value belonging to the terminal (one downlink PDCH at most There can only be 8 USF values), for example, in the TBF allocated by the network side of the communication system to Terminal 1, the uplink PDCH0 corresponds to the USF of Terminal 1 is x1, the uplink PDCH2 corresponds to the USF of Terminal 1 is x2, and the uplink PDCH5 corresponds to Terminal 1 The USF is x3, and the communication system network side will send one or more uplink PDCHs in the TBF allocated to the terminal to the terminal through the downlink channel corresponding to the USF of the terminal, and the terminal determines the currently usable PDCH according to the received uplink PDCH corresponding to the USF One or more uplink PDCHs.

The communication system sends the USF to the terminal through the downlink channel, so as to allocate the uplink PDCH currently used by the terminal in various ways: dynamic allocation, extended dynamic allocation, and back-to-back dynamic allocation (B2DA). The three distribution methods are described in detail below.

dynamic allocation

FIG. 3 is a schematic diagram of a method in which a communication system uses dynamic allocation to send a USF to a terminal through a downlink channel to allocate an uplink PDCH currently used by the terminal. The terminal in the communication system listens to the downlink PDCH corresponding to the uplink PDCH pre-set for the terminal by the wireless communication system, and when receiving the USF corresponding to itself on the downlink PDCH, the terminal sends data on the uplink PDCH corresponding to the downlink PDCH. The use of USF is shown in Figure 3, assuming that uplink PDCH1 is allocated to terminal 1, and terminal 1 receives USF through downlink PDCH1 corresponding to uplink PDCH1 in the first frame as x1 (preset uplink PDCH1 corresponding to USF of terminal 1 as x1), The terminal sends data in the first frame of the uplink PDCH1; if the terminal does not receive the USF in the second frame of the downlink PDCH1 corresponding to the uplink PDCH1 and is x1, the terminal does not send data in the second frame of the uplink PDCH1.

It can be seen from Figure 3 that the allocation of each uplink PDCH is determined by whether there is a USF corresponding to the terminal in the downlink PDCH corresponding to the uplink PDCH. Therefore, this allocation method has the disadvantage of high power consumption of the terminal: one terminal is allocated When multiple uplink PDCHs are allocated, the terminal must monitor the same number of downlink PDCHs as the number of allocated uplink PDCHs, so as to receive the allocated USF transmission data corresponding to the terminal, which will cause a large power consumption of the terminal.

Extended dynamic allocation

The extended dynamic allocation method is developed to overcome the shortcoming of high power consumption of the terminal caused by the dynamic allocation method. The process of extended dynamic allocation is: the terminal does not need to monitor the downlink PDCH corresponding to each uplink PDCH allocated to the terminal in advance by the communication system network side one by one, but first monitors the uplink PDCH with the lowest slot number previously allocated to the terminal by the communication system network side For the corresponding downlink PDCH, if the USF corresponding to itself is received, the current frame of the uplink PDCH whose time slot number allocated to the terminal is greater than or equal to the time slot where the monitored downlink PDCH is located is used to send data; if no USF corresponding to itself is received In the case of USF, monitor the downlink PDCH corresponding to the uplink PDCH with a slot number one slot higher than the PDCH with the lowest slot number assigned to the terminal in advance by the network side of the communication system until it receives the USF corresponding to itself or monitors all Up to the downlink PDCH corresponding to the uplink PDCH allocated in advance for the terminal. When performing extended dynamic allocation, the communication system preferentially instructs the user to use the uplink PDCH with the highest slot number allocated to the terminal, that is, the downlink PDCH corresponding to the uplink PDCH in the highest slot number allocated to the terminal corresponds to the terminal After receiving the downlink PDCH, the terminal sends data on the uplink PDCH corresponding to the downlink PDCH.

Figure 4 is a schematic diagram of a method in which the communication system uses extended dynamic allocation to send USF to the terminal through the downlink channel to allocate the uplink PDCH currently used by the terminal: assuming that the terminal is allocated uplink PDCH1, uplink PDCH2 and uplink PDCH3, the first line in the figure is each downlink PDCH The time slot where the PDCH is located, the boxes pointed to by the arrows in this time slot respectively represent the downlink PDCH situation corresponding to the uplink PDCH allocated for the terminal to monitor in each frame, and the blank box means not to monitor; the second line is the receiving terminal on the network side of the communication system The time slot for sending data, the arrow pointing to the time slot refers to the situation where the terminal sends data or waits to send data in the current frame of the allocated uplink PDCH according to the monitoring situation. It can be seen from Figure 4 that the terminal first monitors the downlink PDCH corresponding to the uplink PDCH with the lowest slot number assigned to itself in the current frame, and only after it does not monitor the USF corresponding to itself, it will monitor in the current frame sequentially as The downlink PDCH corresponding to the uplink PDCH whose slot number is higher than the time slot allocated by itself, and once it receives the USF corresponding to itself, it will no longer monitor the time slot allocated for the terminal in the current frame than the time slot where the USF corresponds to the uplink PDCH. The downlink PDCH corresponding to the uplink PDCH of the time slot with a higher slot number, and directly use all the uplink PDCHs whose time slot numbers are not lower than the time slot where the uplink PDCH corresponding to the received USF is allocated to the terminal to send data in the current frame.

However, the extended dynamic allocation method has the disadvantage of low resource utilization of the communication system: suppose there are two terminals with an uplink PDCH allocation method as shown in Figure 5. At this time, the amount of data to be sent by terminal 1 is small, and only one uplink PDCH is required. The uplink of PDCH can be sent, then the network side of the communication system will allocate the uplink PDCH transmission of terminal 1 in time slot 3 (this is determined by the extended dynamic allocation method, and the uplink PDCH transmission of the highest time slot is preferentially used), at this time The amount of data to be sent by terminal 2 is large, but since the uplink PDCH of time slot 3 is already occupied by terminal 1, terminal 2 can only use the uplink PDCH of time slot 4, which will result in timeslot 0, time slot 1 and time slot 2 The uplink PDCH resources are wasted, so that the resource utilization rate of the communication system is not high.

B2DA

In order to improve the resource utilization of the communication system, B2DA is proposed. The basic principle of B2DA is to enable the terminal to preferentially use the uplink PDCH with a lower allocated time slot number to send data. At this time, the terminal only receives the USF corresponding to itself in the downlink PDCH of the lowest time slot corresponding to the assigned uplink PDCH, and the downlink PDCH in the lowest time slot has the same number of USFs as the number of uplink PDCHs allocated to the terminal. The uplink assignment message sent by the network side of the communication system to the terminal carries the assigned USF corresponding to each uplink PDCH, and the different USFs in the downlink PDCH corresponding to the uplink PDCH in the lowest time slot assigned to the terminal are respectively corresponding to The uplink PDCH allocated by the terminal, so that the terminal monitors a USF set for itself on the downlink PDCH, and then determines that the USF corresponds to an uplink PDCH allocated for the terminal. The uplink PDCH transmission data of the time slot where the uplink PDCH is located. When performing B2DA, the communication system preferentially instructs the user to send data using the uplink PDCH in the time slot with the lowest time slot number allocated to the terminal, that is, the downlink PDCH corresponding to the uplink PDCH in the time slot with the lowest time slot number allocated to the terminal corresponds to After receiving the USF of the uplink PDCH in the lowest time slot of the terminal's time slot number, the terminal uses the uplink PDCH corresponding to the USF to send data.

Figure 6 is a schematic diagram of a method in which the communication system uses B2DA to send USF to the terminal through the downlink channel to allocate the uplink PDCH currently used by the terminal. The current frame of the corresponding downlink PDCH is monitored. Once the USF corresponding to the uplink PDCH allocated to itself is received, all the uplink slot numbers allocated to the terminal are not higher than the time slot of the uplink PDCH corresponding to the received USF. PDCH sends data in the current frame.

The difference between Figure 6 and Figure 4 is that not only the terminal only monitors the downlink PDCH corresponding to the uplink PDCH with the lowest slot number allocated to itself, but not the downlink PDCH corresponding to other uplink PDCHs with high slot numbers allocated to itself. PDCH monitoring; moreover, the communication system first allows the terminal to use the allocated uplink PDCH to send data in the lower time slot, so that the resource utilization rate of the communication system can be improved. Assuming that there are two terminal uplink PDCH allocation methods as shown in Figure 7 It shows that the amount of data to be sent by terminal 1 is small at this time, and only one uplink PDCH is needed to complete the transmission, then the network side of the communication system will allocate the uplink PDCH transmission of terminal 1 in time slot 0, and the data to be sent by terminal 2 at this time If the amount of data is large, the network side of the communication system will allocate the terminal 2 to send data on the uplink PDCH of time slot 1, time slot 2, time slot 3, and time slot 4, so as not to cause waste of communication system resources.

Considering the multi-slot level of the terminal, in the B2DA mode, only the downlink PDCH corresponding to the uplink PDCH of the lowest slot number assigned to the terminal monitors the USF, which will cause some terminals of the multi-slot level, especially type 1 terminals, to fail Sufficient transmit and receive transition time to transmit and receive data. The specific analysis will be described below.

For the terminal, the time slot difference between the downlink PDCH receiving USF and the corresponding uplink PDCH sending data is 3, the transition time from receiving USF on downlink PDCH to sending data on uplink PDCH and switching from sending data on uplink PDCH to receiving USF on downlink PDCH The conversion time is determined according to Table 1. To give an example, Figure 8 is a schematic diagram of the transceiving conversion time of a type 1 terminal with a multi-slot level of 34: the type 1 terminal is allocated 5 time slots for uplink PDCH transmission data, which are respectively uplink PDCH0, uplink PDCH1, and uplink PDCH2 , uplink PDCH3 and uplink PDCH4, after the type 1 terminal monitors the USF on the downlink PDCH corresponding to the uplink PDCH of the assigned lowest slot number, that is, after listening to the USF on the downlink PDCH0, the assigned slot number is not higher than the corresponding USF All uplink PDCHs in the time slot where the downlink PDCH is located send data. It can be seen from Figure 8 that the transition time Ttb from reception to transmission of type 1 terminals is 2 time slots, which satisfies 1 time slot of Ttb specified in Table 1, and also satisfies Tta as 2; but the transition time from transmission to reception Trb is 0 time slot, which does not meet the requirement of Trb 1 time slot in Table 1, nor does it satisfy 1 time slot of Tra. In this case, it is impossible for the terminal of type 1 to switch from the sending state to the receiving state, resulting in the failure of sending and receiving data of the terminal of type 1.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a method for a terminal to send data on the indicated PDCH. This method avoids the problem that the terminal does not have enough time for sending and receiving conversion to send and receive data, and will not cause the terminal to fail to send and receive data.

According to above-mentioned purpose, technical scheme of the present invention is achieved like this:

A method for a terminal to send data on an indicated packet data channel PDCH, characterized in that the method includes:

A. The network side of the communication system sets the uplink status identifier USF for the terminal corresponding to the PDCH allocated for the terminal in the downlink PDCH corresponding to the uplink PDCH of the second-lowest time slot allocated for the terminal;

B. After the terminal monitors the USF on the downlink PDCH corresponding to the uplink PDCH in the second-lowest time slot assigned to the terminal by the network side of the communication system, it allocates all the uplink PDCHs corresponding to the USF that are not higher than the monitored USF to the terminal. The uplink PDCH sends data.

The terminal is set to monitor the information of the downlink PDCH corresponding to the uplink PDCH of the second-lowest time slot assigned to the terminal,

Before step B, the method includes: according to the set information, the terminal monitors the downlink PDCH corresponding to the uplink PDCH of the second-lowest time slot assigned to the terminal.

After step A, the method includes: the network side of the communication system notifies the terminal to monitor the downlink PDCH corresponding to the uplink PDCH of the second-lowest time slot assigned to the terminal.

The process of notifying the terminal to monitor the downlink PDCH is:

Carry the downlink PDCH information corresponding to the uplink PDCH of the second-lowest time slot assigned to the terminal in the uplink assignment message and send it to the terminal, and the terminal determines the monitored downlink PDCH according to the information carried in the received uplink assignment message .

The number of USFs of the uplink PDCH allocated to the terminal in step A is the same as the number of uplink PDCHs allocated to the terminal, and different USFs correspond to different uplink PDCHs allocated to the terminal.

The terminal is a half-duplex terminal.

The terminal is a half-duplex terminal with a multi-slot level of 34 or 39, and the terminal is allocated 5 uplink PDCHs;

Or the terminal is a half-duplex terminal with a multi-slot level of 45, and the terminal is allocated 6 uplink PDCHs.

The terminal is a terminal that meets the time requirement for sending and receiving conversion.

The method further includes: in addition to the downlink PDCH corresponding to the uplink PDCH allocated to the terminal for which multiple USFs are set for the terminal, the USFs in the downlink PDCHs corresponding to other uplink PDCHs allocated to the terminal are set as, the set guaranteed communication system Other terminals will not mistakenly occupy the special value of the uplink PDCH corresponding to the downlink PDCH.

It can be seen from the above method that the present invention resets the downlink PDCH that the terminal monitors, that is, no longer sets the terminal to monitor the downlink PDCH corresponding to the uplink PDCH of the lowest time slot assigned time slot number, but sets the terminal to monitor the allocated time slot The downlink PDCH corresponding to the uplink PDCH of the low-order time slot monitors, thereby avoiding the problem that the terminal does not have enough time for sending and receiving conversion to send and receive data, and will not cause the failure of the terminal to send and receive data.

Description of drawings

FIG. 1 is a schematic diagram of a PDCH set on a network side of a communication system;

Figure 2 shows how the USF indicates one or more uplink PDCHs currently available to the terminal;

FIG. 3 is a schematic diagram of a method in which a communication system uses dynamic allocation to send a USF to a terminal through a downlink channel to allocate an uplink PDCH currently used by the terminal;

FIG. 4 is a schematic diagram of a method in which a communication system uses extended dynamic allocation to send a USF to a terminal through a downlink channel to allocate an uplink PDCH currently used by the terminal;

Fig. 5 is a schematic diagram illustrating that the resource utilization rate of the communication system is not high in the prior art;

6 is a schematic diagram of a method in which the communication system uses B2DA to send USF to the terminal through the downlink channel to allocate the uplink PDCH currently used by the terminal;

FIG. 7 is a schematic diagram illustrating a high resource utilization rate of a communication system in the prior art;

FIG. 8 is a schematic diagram of the transceiving conversion time for a type 1 terminal with a multi-slot level of 34 in the prior art;

FIG. 9 is a flow chart of a method for a terminal to send data on an indicated uplink PDCH according to the present invention;

FIG. 10 is a schematic diagram of a method for a terminal to send data on an indicated uplink PDCH according to the present invention;

FIG. 11 is a schematic diagram of the transceiving conversion time for a type 1 terminal with a multi-slot level of 34 according to the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail by giving specific embodiments and referring to the accompanying drawings.

In order to enable terminals, especially type 1 terminals, to have sufficient time for sending and receiving data, and to avoid data sending and receiving failures of the terminal, the present invention resets the downlink PDCH that the terminal monitors, that is, no longer sets the time slot number allocated for terminal monitoring to be the lowest. The downlink PDCH corresponding to the uplink PDCH of the time slot, and the terminal is set to monitor the downlink PDCH corresponding to the uplink PDCH of the second-lowest time slot allocated. The network side of the communication system sets multiple USFs corresponding to the uplink PDCHs respectively allocated to the terminal in the downlink PDCH corresponding to the uplink PDCH of the second-lowest time slot allocated to the terminal, and the number of these multiple USF values is given by the terminal The assigned uplink PDCH is determined. When the terminal listens to the USF set for itself on the downlink PDCH corresponding to the uplink PDCH of the second-lowest allocated time slot number, according to the existing B2DA method, the allocated time slot number is not higher than the uplink PDCH corresponding to the USF All uplink PDCHs in the time slot send data.

FIG. 9 is a flow chart of the method for realizing the terminal sending data on the indicated uplink PDCH according to the present invention, and the specific steps are:

Step 900, the terminal sends an access request to the communication system network side, and the communication system network side allocates an uplink PDCH to the terminal according to the information of the terminal and the situation of the current communication system according to the prior art.

Step 901: The network side of the communication system sets multiple USFs for the terminal corresponding to the PDCHs allocated to the terminal in the downlink PDCH corresponding to the uplink PDCH in the time slot with the second lowest slot number allocated to the terminal.

Step 902: The network side of the communication system notifies the terminal to monitor the downlink PDCH corresponding to the uplink PDCH in the time slot with the second lowest time slot number allocated to the terminal.

The process of informing the terminal to monitor the downlink PDCH corresponding to the uplink PDCH in the second-lowest time slot allocated to the terminal is: carry the information identifying the downlink PDCH corresponding to the uplink PDCH in the second-lowest time slot allocated to the terminal in the current Some uplink assignment messages are sent to the terminal, and the terminal determines the monitored PDCH according to the information identifying the downlink PDCH carried in the received uplink assignment message.

In the present invention, the network side of the communication system may not notify the terminal of the downlink PDCH monitored, but preset the default monitored downlink PDCH in the terminal, and the terminal monitors the downlink PDCH according to the set default monitored downlink PDCH.

Step 903: The terminal listens to the downlink PDCH corresponding to the uplink PDCH in the second-lowest time slot assigned by the network side of the communication system for the terminal. All uplink PDCHs of the corresponding uplink PDCHs send data.

Fig. 10 is a schematic diagram of the method for the terminal to send data on the indicated PDCH according to the present invention: the uplink PDCHs allocated to the terminal by the network side of the communication system are uplink PDCH1, uplink PDCH2 and uplink PDCH3, and the uplink PDCH with the second lowest assigned time slot number corresponds to The downlink PDCH, that is, the downlink PDCH2 is allocated with 3 USFs, which are x1, x2 and x3, corresponding to the allocated 3 uplink PDCHs, that is, uplink PDCH1, uplink PDCH2 and uplink PDCH3 respectively. The terminal only monitors the downlink PDCH2, and sends data through the uplink PDCH1 when the USF is x1; when the USF is x2, it sends data through the uplink PDCH1 and uplink PDCH2; when the USF is x3, it sends data through the uplink PDCH1, uplink PDCH2, and uplink PDCH3 .

In the present invention, in order to prevent other terminals in the communication system from using the uplink PDCH allocated for the terminal to send data when the terminal sends data through the uplink PDCH, the present invention can be configured for the terminal in addition to setting multiple USFs for the terminal. In addition to the downlink PDCH corresponding to the uplink PDCH, in other downlink PDCHs corresponding to the uplink PDCH allocated to the terminal, set the USF in the downlink PDCH to a special value, such as setting USF=x0, so that other terminals in the communication system When monitoring these downlink PDCHs, it will receive the special value of the set USF. At this time, it will not send data through the uplink PDCHs corresponding to these downlink PDCHs, and will not cause other terminals in the communication system to mistakenly occupy these uplink PDCHs to send data. Condition.

Regarding the transceiving transition times Tta, Ttb, Tra, and Trb mentioned in the background art, using the method provided by the present invention, there is sufficient transceiving transition time for terminals with different multi-slot levels. For example, for a type 1 terminal with a multi-slot level of 34, the schematic diagram of the method provided by the present invention is shown in Figure 11: the type 1 terminal is allocated PDCH transmission data of 5 time slots, which are respectively uplink PDCH0, uplink PDCH1, uplink For PDCH2, uplink PDCH3, and uplink PDCH4, type 1 terminals listen to the USF on the downlink PDCH corresponding to the uplink PDCH of the allocated slot with the lowest slot number, that is, after listening to the USF on the downlink PDCH0, the allocated slot number is not higher than the USF All uplink PDCHs in the time slot where the corresponding uplink PDCH is located send data. It can be seen from Figure 11 that the transition time Ttb from reception to transmission of type 1 terminals is one time slot, which meets the requirements of Ttb in Table 1; the transition time Trb from transmission to reception is one time slot, One time slot that satisfies Trb specified in Table 1 also satisfies one time slot that is Tra. .

It can be seen from Table 1 that when a type 1 terminal with a multi-slot level of 34 or 39 is allocated 5 uplink PDCHs, and a type 1 terminal with a multi-slot level of 45 is allocated 6 uplink PDCHs, the method provided by the present invention can be used.

In the present invention, the terminal may be a mobile station (MS). The communication system described in the present invention may be any existing communication system, such as a second generation (2G) communication system and a third generation (3G) communication system.

In the present invention, a method is also provided to ensure that there is enough time for transmitting and receiving conversion to send and receive data, so as to avoid the failure of data transmission and reception of the terminal, that is, to limit the number of uplink PDCHs allocated for the terminal, and to allocate no more than 100% for the terminal to meet the requirements of the transmission and reception conversion. The number of uplink PDCHs set according to the time.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention. within the scope of protection.

Claims (9)

1, a kind of terminal is characterized in that in the method that indicated Packet Data Channel PDCH sends data this method comprises:

A, communication system network identify USF for uplink state that the terminal setting corresponds respectively to the PDCH of terminal distribution in for the descending PDCH of the up PDCH correspondence of the low time slot of time slot number of terminal distribution;

B, terminal are after the descending PDCH of up PDCH correspondence of the low time slot of time slot number of terminal distribution listens to USF at communication system network, send data by all the up PDCH for the up PDCH that is not higher than the USF correspondence that is listened to of terminal distribution.

2, the method for claim 1 is characterized in that, in terminal the information of monitoring for the descending PDCH of the up PDCH correspondence of the low time slot of time slot number of terminal distribution is set,

Before step B, this method comprises: terminal is monitored the descending PDCH that hangs down the up PDCH correspondence of time slot for the time slot number of terminal distribution according to this information that is provided with.

3, the method for claim 1 is characterized in that, after steps A, this method comprises: communication system network notice terminal monitoring is that the time slot number of terminal distribution hangs down the descending PDCH of the up PDCH correspondence of time slot.

4, method as claimed in claim 3 is characterized in that, the process of the descending PDCH of described notice terminal monitoring is:

The descending PDCH information of the up PDCH correspondence of the low time slot of time slot number that is designated terminal distribution is carried in the up assignment message sends to terminal, the information that terminal is carried according to the up assignment message that receives is determined the descending PDCH that monitored.

5, the method for claim 1 is characterized in that, steps A is described to be that the number of USF of up PDCH of terminal distribution is identical with number for the up PDCH of terminal distribution, and different USF correspond to the different up PDCH of terminal distribution.

6, the method for claim 1 is characterized in that, described terminal is a half-duplex terminals.

7, the method for claim 1 is characterized in that, described terminal is that multislot class is 34 or 39 half-duplex terminals, and this terminal has been assigned with 5 up PDCH;

Perhaps described terminal is that multislot class is 45 half-duplex terminals, and this terminal has been assigned with 6 up PDCH.

8, the method for claim 1 is characterized in that, described terminal is for satisfying the terminal of transmitting-receiving requirement change-over time.

9, the method for claim 1, it is characterized in that, this method further comprises: except the descending PDCH for the up PDCH correspondence of terminal distribution that is provided with a plurality of USF for terminal, other are set to for the USF among the descending PDCH of the up PDCH correspondence of terminal distribution, and the other-end in the assurance communication system of setting can not account for the particular value of the up PDCH of this descending PDCH correspondence by mistake.

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