CN100421388C - Optimization Method for Packet Wireless Communication Network - Google Patents

Abstract

The present invention relates to a wireless communication technique and discloses a packet wireless communication network optimizing method. The up data transmission time lag and the down data transmission time lag can be accurately measured in the grouping switching and handshaking procedure, and thereby, the link needs optimizing is positioned. In the present invention, a series of new data transmission time lag indexes is introduced, and the reconfiguration procedure of the up business and the down business is distinguished. An up first data packet and down first data packet are introduced to transmit and receive the marking event for measuring the time lag index, and the specification on how to position the link needs optimizing by the time lag indexed is respectively carried out.

Description

Optimization Method for Packet Wireless Communication Network

technical field

The invention relates to wireless communication technology, in particular to optimization technology of packet wireless communication network.

Background technique

Packet Switching (Packet Switching, referred to as "PS"), also known as packet switching, and "circuit switching" are the two most basic switching methods of telecommunication switching. The packet switching method is to divide the data to be transmitted by the user into "packets" of a certain length, that is, "packets" one by one. Each packet (or packet) is preceded by a "packet header" in a specified format, which is used to indicate the receiving address of this packet and related control information. Then the packet switch sends them to the destination in a "store-and-forward" manner according to the address in the packet header and related control information. This method was originally used as an exchange method for data communication.

PS is widely used in fixed network and mobile communication network. In order to test and optimize the performance of the PS system, it is necessary to measure the delay during the PS service connection process. The delay in the PS service connection process involves many events and processes, including: the user starts to press a button, the user equipment (User Equipment, "UE") establishes the PS service, the service establishment is completed, the UE and the network start data transmission, and the network side according to The actual service volume of the UE, dynamically adjust the channel, and so on.

In the Wideband Code Division Multiple Access ("WCDMA") system, a series of delays are set for network optimization. WCDMA is a CDMA (Code Division Multiple Access) system that adopts Direct Sequence Spread Spectrum (DSSS) technology. It expands the user bandwidth by more than 1000 times through the spread spectrum code, and expands the channel bandwidth to 5MHz. According to the theory of information theory, this can reliably transmit information at the same transmission rate in the case of a very low signal-to-noise ratio, greatly enhances the anti-interference ability, realizes code division multiple access, and can support various user data rates.

The following delays are defined for WCDMA in the 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as "3GPP") public document TR25.815.

As shown in Figure 1, t7 represents the delay from activating PDP context acceptance (ACTIVATE PDP CONTEXTACCEPT) to measurement control (Measurement Control). At the same time, the UE also receives the Measurement Control message, and the UE also learns about the trigger threshold for reporting the radio link control (Radio Link Control, "RLC") layer measurement report. After that, the UE can start the high-level service and network establishment interaction process, as well as the measurement monitoring and reporting of the RLC layer.

t8 represents the delay from flow control (MEASUREMENT CONTROL) to measurement (MEASUREMENT). This process indicates that the UE has completed the processing of the measurement control message, and the high-level business also starts to interact with the network side, and starts to send the uplink data flow to the network layer, and the data flow is delivered to the RLC layer of the UE, and the RLC layer of the UE satisfies the requirements of the data flow. The trigger condition of the traffic measurement report, the UE reports the measurement report to the network side.

t9 represents the delay from measurement (MEASUREMENT) to radio bearer reconfiguration (RADIO BEARRECONFIGURATION). This process means that the network side receives the UE's measurement report, processes the UE's measurement report message, decides to update the radio bearer for the UE according to the actual service volume reported by the UE, and provides a radio bearer suitable for the UE's actual service volume.

t10 represents the delay from when the UE receives the RADIO BEAR RECONFIGURATION message to when it sends the RADIO BEAR RECONFIGURATION COMPLETE message. This process indicates that the UE has completed the processing of radio bearer reconfiguration.

t7/t8/t9 reflect the delay index from the end of the signaling link to the start of data transmission, and the network side performs dynamic channel adjustment according to the actual data transmission situation. Through the test of t7/t8/t9, the UE can know the delay index of the WCDMA network system from the end of signaling to the adjustment of data transmission.

The system performs RADIO BEAR RECONFIGURATION configuration on UE to complete the resource adjustment of uplink and downlink data transmission. The RADIO BEAR RECONFIGURATION message carries adjustment information elements for uplink data transmission resources and adjustment information elements for downlink data transmission resources respectively. RADIO BEAR RECONFIGURATION can only carry uplink cells and only adjust uplink data transmission resources; it can also only carry downlink cells and only adjust downlink data transmission resources; it can also carry uplink and downlink cells at the same time. Adjustment of uplink and downlink data transmission resources.

The above delay index can also be extended to general wireless communication systems. Figure 2 shows part of the interaction process between the UE and the network in a general wireless communication system. The steps of interaction are described below.

1. A service is established between the UE and the network.

2. The service establishment between the UE and the network is completed, and the message may be the UE notifying the network, or the network notifying the UE.

3. The network side sends a service volume measurement control message to the UE, which is used to notify the UE to detect the actual service volume.

4. The UE judges whether the internal cache of the UE is too much or too little according to the configuration information of the traffic measurement control configuration according to the actual situation of the traffic volume, and reports the measurement report to the network side if the internal cache data exceeds or falls below a certain threshold. In this traffic measurement, only the uplink traffic can be evaluated on the UE side, and the downlink traffic can be evaluated on the network side.

5. The network side receives the UE's measurement report, prepares internal resources, and sends a service bandwidth reconfiguration message to the UE, requesting to reconfigure the bandwidth.

6. The UE receives the service bandwidth reconfiguration message from the network, starts the service bandwidth reconfiguration process on the UE side, and sends a service bandwidth reconfiguration complete message to the network after completing the service bandwidth reconfiguration.

The delay indicators involved in the above interaction process are as follows:

t7 represents the time delay from when the UE reports the completion of service establishment to when the UE receives the traffic measurement control configuration from the network. During this period, the UE has completed the establishment of internal services and is waiting for the traffic measurement control message from the network.

t8 represents the time delay from when the UE receives the traffic measurement control configuration message from the network side to when it sends the traffic measurement report. During this period, the high-level application of the UE needs to send data to the network, and the UE determines when the trigger condition of the traffic is met by checking the internal cache.

t9 represents the time delay from when the UE sends the service volume measurement report to when it receives the service bandwidth reconfiguration message. During this period, the network side processes the traffic measurement report, configures network resources, and decides to reconfigure the service bandwidth of the UE.

t10 represents the time delay from when the UE receives the service bandwidth reconfiguration message to when the service bandwidth reconfiguration is completed. During this period, the UE processes the service bandwidth reconfiguration message sent by the network side, adjusts the service bandwidth of the UE side according to the new configuration, and sends a service bandwidth reconfiguration complete message to the network after the adjustment is completed.

Through the above description, it can be known that t7, t8, and t9 describe the process of adjusting the service bandwidth according to the actual service volume during the data transmission period after the service is established between the network and the UE. The traffic monitoring on the UE side is only for the buffering monitoring of uplink data. The downlink traffic monitoring is done on the network side (for example, RNC), and the network monitors downlink data cache to decide whether to send a service bandwidth reconfiguration message to the UE. When the network sends a service bandwidth reconfiguration message to the UE, when the network side sends a measurement control message to the UE, and when the UE reports a measurement report to the network side, there is no delay constraint. Therefore, the delay definition described in t7/t8/t9 only evaluates the system delay from the perspective of signaling, and describes the uplink delay constraint relationship, which is not suitable for evaluating the system's uplink and downlink data transmission delay indicators. In fact, the uplink and downlink data transmission delays are also of great significance to network optimization.

Contents of the invention

In view of this, the main purpose of the present invention is to provide an optimization method for a packet wireless communication network, so that during the packet switching connection process, the time delay of uplink data transmission and downlink data transmission can be accurately measured, and thus positioning needs to be optimized link.

To achieve the above object, the present invention provides a method for optimizing a packet wireless communication network, comprising the following steps:

Measure the delay index in the process of packet switching service connection;

Judging whether the measured delay index exceeds the preset threshold, and if so, locating the device or the functional module causing the problem according to the delay index;

Optimizing the device or its functional modules according to the delay index;

Wherein, the delay index is the time difference between the user equipment or the network side equipment receiving or sending two specified types of packets, and the specified type of packets can be a specified type of message, the first upstream data packet, or the first downstream packet. a packet.

Wherein, the delay index is the first uplink delay, which is obtained by measuring the time difference between the user equipment receiving or sending a message indicating that the service establishment and reception is completed and sending the first uplink data packet;

If the first uplink delay exceeds the preset threshold, it means that the processing time of the user equipment is too long, and the processing efficiency of the following modules in the user equipment needs to be improved: a processing module for activating context reception and a module for application layer service initialization.

In addition, in the method, the delay indicator is the second uplink delay, which is obtained by measuring the time difference between the user equipment sending the first uplink data packet and sending the measurement report;

If the second uplink delay exceeds the preset threshold, it indicates that the trigger time configuration of the network uplink bandwidth needs to be improved.

In addition, in the method, the delay index is the tenth uplink delay, which is obtained by measuring the time difference between the user equipment receiving the uplink service bandwidth reconfiguration message and sending the uplink service bandwidth reconfiguration complete message;

If the tenth uplink delay exceeds the preset threshold, it means that the user equipment takes too long to process the uplink bandwidth reconfiguration, and it is necessary to modify the parameter settings for controlling this delay on the network side, or optimize the UE's uplink bandwidth reconfiguration message processing delay.

In addition, in the method, the delay index is the first downlink delay, which is obtained by measuring the time difference between the user equipment receiving or sending a message indicating that the service establishment and reception is completed and receiving the first downlink data packet;

If the first downlink delay exceeds the preset threshold, it means that it needs to be further checked whether the delay in sending the first uplink data packet from the user equipment is too large or the delay in sending the first downlink data packet from the network side is too long.

In addition, in the method, the delay index is the second downlink delay, which is obtained by measuring the time difference between the user equipment receiving the first downlink data packet and receiving the message for downlink bandwidth adjustment from the network side;

If the second downlink delay exceeds the preset threshold, it means that the reconfiguration delay on the network side is too large, and it is necessary to further check whether the setting of the trigger condition of the service reconfiguration parameters of the network is reasonable, and whether the egress delay from the network to the Internet is too long .

In addition, in the method, the delay index is the third downlink delay, which is obtained by measuring the time difference between the user equipment sending the first uplink data packet and receiving the first downlink data packet;

If the third downlink delay exceeds the preset threshold, it means that the round-trip delay of small packets in the network is too large, and it is necessary to improve the performance of the functional modules on the network side for data transmission on the data plane.

In addition, in the method, the delay index is the tenth downlink delay, which is obtained by measuring the time difference between the user equipment receiving the downlink service bandwidth reconfiguration message and sending the downlink service bandwidth reconfiguration complete message;

If the tenth downlink delay exceeds the preset threshold, it means that the time required for the user equipment to process the downlink bandwidth reconfiguration is too long, and it is necessary to modify the parameter settings used to control this delay on the network side, or optimize the UE's downlink bandwidth reconfiguration message processing delay.

Furthermore, in the method, the packet wireless communication network may be a third generation mobile communication network.

Furthermore, in the method, the network side device includes a radio network controller.

Through comparison, it can be found that the main difference between the technical solution of the present invention and the prior art is that it introduces a series of new data transmission delay indicators, distinguishes the service reconfiguration process of uplink and downlink, and introduces the first data transmission of uplink and downlink. The sending and receiving of packets is a symbolic event for measuring delay indicators, and how to use these delay indicators to locate links that need to be optimized is specifically explained.

This difference in technical solution brings obvious beneficial effects, that is, problems in the packet wireless communication network can be more easily located. Because the present invention proposes more and finer time delay indexes, it is possible to more accurately locate links that need to be optimized. For example, uplink and downlink delay indicators are set for the service reconfiguration process, and the range of network side parameters that need to be modified can be effectively narrowed by measuring the corresponding delay indicators.

The delay index proposed by the present invention can be accurately measured. Because all delay indicators proposed by the present invention are obtained by measuring the time difference between two events, and the events involved in the measurement are all receiving or sending a message of a specified type, or the first data packet of uplink and downlink, The time when these events occur can be known precisely, so the operability is better.

By measuring these delay indicators before and after network optimization, quantitative evaluation of network optimization effects can be made. By measuring these delay indicators for different user equipments and networks, the performance of these user equipments and networks can be objectively compared.

Description of drawings

Figure 1 is the definition of the PS delay index in 3GPP TR25.815;

FIG. 2 is a schematic diagram of a partial interaction process between a UE and a network in a wireless communication system;

Fig. 3 is a flow chart of network optimization according to an embodiment of the present invention;

4 is a schematic diagram of a newly added delay index in a wireless communication system according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a newly added delay index in a WCDMA system according to an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

In the present invention, a new delay index is introduced for network optimization. These new delay indicators use the sending and receiving time of the first uplink data packet and the first downlink data packet in the network as the detection point, and distinguish the uplink service reconfiguration process from the downlink service reconfiguration process. The transmission delay is a new delay definition index.

In one embodiment of the present invention, the flow of network optimization by measuring the time delay during PS service connection is shown in FIG. 3 .

In step 110, the UE or the network side device measures the delay index during the packet switching service connection process. In order to better complete network optimization tasks and more accurately locate links that need to be optimized, some time delay indicators are newly added in the present invention. These latency metrics are obtained by measuring the time difference between two specific events. Each specific event can be one of the following:

The UE or the network side device receives a specified type of message;

The UE or the network side device sends a message of a specified type;

The UE or the network side device receives the first uplink data packet;

The UE or the network side device sends the first uplink data packet;

The UE or the network side device receives the first downlink data packet;

The UE or the network side device sends the first downlink data packet.

Compared with the prior art, the present invention introduces the first data packet of the uplink and downlink as the detection point related to the delay index, and also distinguishes the reconfiguration process of the uplink service and the downlink service reconfiguration process, thereby forming an uplink and downlink service reconfiguration process. Data transmission new latency index.

Fig. 4 shows various time delay indicators newly added by the present invention in the wireless communication system. Firstly, the service connection process in Fig. 4 is explained.

1. A service is established between the UE and the network.

2. The service establishment between the UE and the network is completed, and the message may be the UE notifying the network, or the network notifying the UE.

3. The network side sends a service volume measurement control message to the UE, which is used to notify the UE to detect the actual service volume.

4. The UE sends the first uplink data packet to the network.

5. The UE judges whether the internal cache of the UE is too much or too little according to the configuration information of the traffic measurement control configuration according to the actual situation of the traffic volume, and reports the measurement report to the network side if the internal cache data exceeds or falls below a certain threshold. In this traffic measurement, only the uplink traffic can be evaluated on the UE side, and the downlink traffic can be evaluated on the network side.

6. After the service is established in the second step, the network side sends the first downlink data packet to the UE.

7. The network side receives the UE's measurement report, prepares internal resources, and sends a service bandwidth reconfiguration (uplink) message to the UE, requesting reconfiguration of the uplink bandwidth.

8. The UE receives the service bandwidth reconfiguration (uplink) message from the network, starts the reconfiguration process of the uplink service bandwidth on the UE side, and after completing the service bandwidth reconfiguration (uplink), sends the service bandwidth reconfiguration complete (uplink) message to the network.

9. After step 6, the network monitors the downlink traffic situation, and sends a service bandwidth reconfiguration (downlink) message to the UE, requesting to reconfigure the downlink bandwidth.

10. The UE receives the service bandwidth reconfiguration (downlink) message from the network, starts the reconfiguration process of the uplink service bandwidth on the UE side, and after completing the reconfiguration (downlink) of the service bandwidth, sends the service bandwidth reconfiguration complete (downlink) message to the network.

Next, the time delay index that needs to be measured during the service connection process shown in FIG. 4 will be described.

t7 represents the time delay from when the UE reports the completion of service establishment to when the UE receives the traffic measurement control configuration from the network. During this period, the UE has completed the establishment of internal services, and is waiting to receive traffic measurement control messages from the network.

t8 represents the time delay from when the UE receives the traffic measurement control configuration message from the network side to when it sends the traffic measurement report. During this period, the high-level application of the UE needs to send data to the network, and the UE determines when the trigger condition of the traffic is met by checking the internal cache.

t9 represents the time delay from when the UE sends the service volume measurement report to when it receives the service bandwidth reconfiguration message. During this period, the network side processes the traffic measurement report, configures network resources, and decides to reconfigure the service bandwidth of the UE.

The first uplink delay indicates the delay until the UE sends the first uplink data packet after the UE completes service establishment and reception.

The second uplink delay indicates the delay from when the UE sends the first uplink data packet to when the UE sends the measurement report.

The first downlink delay indicates the delay until the first downlink data packet after the UE completes service establishment and reception.

The second downlink delay indicates the delay from when the UE receives the first downlink data packet to when it receives the service message.

The third downlink delay indicates the delay from when the UE sends the first uplink data packet to when the UE receives the first downlink data packet.

The tenth uplink delay indicates the delay from when the UE receives the service bandwidth reconfiguration (uplink) to when the service bandwidth reconfiguration is completed (uplink).

The tenth downlink delay indicates the delay from when the UE receives the service bandwidth reconfiguration (downlink) to when the service bandwidth reconfiguration is completed (downlink).

In step 120 of Fig. 3 flow process, judge step 110 to measure whether various delays are too large, can compare with preset threshold during judging, preset threshold can be experience value, simulation result, or other network According to the actual measurement results, if it is determined that the time delay is too large, then go to step 130, otherwise, the network optimization can end this time.

In step 130, the device causing the problem or the functional module therein is located according to the excessive time delay index. How to locate the links that need to be optimized according to the newly added delay index in the present invention is described in detail below:

The first uplink delay is used to evaluate the performance of different UEs, and the delay index reflects the delay from when the UE completes service establishment to when it starts to send the first uplink data packet uplink. The first uplink delay is too large, indicating that the processing delay of the UE is too large, and the UE needs to consider the processing delay of ACTIVATE PDP CONTEXTACCEPT and the delay of application layer service initialization.

The second uplink delay is used to evaluate network performance, which reflects the UE from sending the first data packet to the network side (data packets are waiting to be sent out through the UE's uplink buffer, and the UE monitors the uplink buffer occupancy) to the uplink buffer occupancy When the situation is higher or lower than a certain threshold, the network side measurement report is reported, and the uplink bandwidth is required to be modified. If the second uplink delay is too large, it is necessary to improve the trigger time configuration of the network uplink bandwidth.

The tenth uplink delay is used to evaluate network performance, reflecting the delay required by the UE to process uplink bandwidth reconfiguration, because the UE behavior is controlled through the network side, so if the tenth uplink delay is too large, it means that the network side The parameter setting is unreasonable and needs to be improved.

The first downlink delay is used to evaluate network performance, and reflects the delay from when the UE completes service establishment to when the first downlink data packet arrives at the UE. The first downlink delay is too long, and it is necessary to further check whether the delay of the first packet sent by the UE is too long, or the delay of the first packet of the system itself is too long.

The second downlink delay is used to evaluate the network performance, reflecting the delay from when the UE receives the first downlink data packet, performs data transmission interaction, to when it receives the network side to adjust the downlink bandwidth. If the second downlink delay is too long, it means that the reconfiguration delay on the network side is too long. You need to check the setting of the trigger condition of the service reconfiguration parameter on the network and whether the egress delay from the network to the Internet is too long.

The third downlink delay is used to evaluate the network performance, reflecting the delay from when the UE prepares to send the first uplink data packet to when the first downlink data packet is received in the downlink. If the third downlink delay is too large, it means that the round-trip delay of small packets in the system is too large, and the data transmission performance of the system needs to be improved.

t9 is used to evaluate the network performance, reflecting the time delay for the network side to process the measurement report and adjust the uplink bandwidth. If t9 is too large, it is necessary to improve the internal link establishment time of the network to improve the bandwidth.

The tenth downlink delay is used to evaluate network performance, reflecting the delay required by the UE to process downlink bandwidth reconfiguration, because the UE behavior is controlled through the network side, so if the tenth downlink delay is too large, it means that the network side The parameter setting is unreasonable and needs to be improved.

After that, enter step 140, and improve the links that need to be optimized according to the analysis results in step 130.

The process mentioned in Fig. 4 is aimed at a general packet wireless communication network, and a specific example in a WCDMA system is given below. Fig. 5 shows the PS service connection process and the definition of the time delay index in the WCDMA system.

First explain the business connection process in Figure 5:

1. "First uplink data appeared in UE" on the UE side indicates the first uplink data packet to be sent after the UE completes service establishment.

2. "First downlink data received in RNC" (First downlink data received in RNC) on the RNC side indicates the first downlink data packet received by RNC after the service establishment between UE and RNC is completed. The data packet will be sent to the UE, received by the UE, and become the first downlink data packet received by the UE.

3. "First downlink data received in UE" (first downlink data received in UE) on the UE side indicates that after the service establishment between UE and RNC is completed, the first downlink data packet received by UE is For those sent by the RNC, see the description in step 2 of this procedure.

4. The "Internal measurement report to trigger" on the RNC side indicates that the RNC triggers the measurement report according to the occupancy of the RNC internal buffer of the downlink service. After the measurement report is triggered, the RNC will decide whether to perform the radio bearer reconfiguration (RADIO BEAR RECONFIGURATION) process.

5. The radio bearer reconfiguration message is divided into uplink and downlink. Radio bearer reconfiguration (uplink) means a radio bearer reconfiguration message for uplink bandwidth adjustment; radio bearer reconfiguration (downlink) is a radio bearer reconfiguration message for downlink bandwidth adjustment; it can also be adjusted in one radio bearer reconfiguration Uplink and downlink, in this case, it can be considered that the time point when this message appears is the time point of the radio bearer reconfiguration (uplink) message in Figure 5, and is also the time point of the radio bearer reconfiguration (downlink) message in Figure 5, At this time, the tenth uplink delay is equal to the tenth downlink delay.

The definition of t7 and t8 in Fig. 5 is consistent with the definition in the public document 3GPP 25.815.

New latency metric definition:

The first uplink delay indicates the delay from when the UE receives the "Activate PDP Context Accept" (ACTIVATE PDPCONTEXT ACCEPT) message to when the UE sends the first uplink data packet.

The second uplink delay indicates the delay from when the UE sends the first uplink data packet to when the UE sends the "MEASUREMENT REPORT" message. This indicator reflects that since the UE sends the first data packet to the network side, the data packets are waiting to be sent out through the UE's uplink buffer. The UE monitors the uplink buffer occupancy, and when the uplink buffer occupancy is higher or lower than a certain threshold, Report the MEASUREMENT REPORT on the network side, requesting to modify the RADIO BEAR bearer.

The tenth uplink delay indicates the delay from when the UE receives "RADIO BEAR RECONFIGURATION uplink" (RADIOBEAR RECONFIGURATION COMPLETE uplink) to sending "RADIOBEAR RECONFIGURATION COMPLETE uplink". This indicator reflects the time delay required by the UE to process uplink bandwidth reconfiguration.

The first downlink delay indicates the delay from when the UE receives the "Activate PDP Context Accept" (ACTIVATE PDPCONTEXT ACCEPT) message to when it receives the first downlink data packet.

The second downlink delay indicates the delay from when the UE receives the first downlink data packet to when it receives the "Radio Bearer Reconfiguration (Downlink)" (RADIO BEAR RECONFIGURATION downlink) message.

The third downlink delay indicates the delay from when the UE sends the first uplink data packet to when the UE receives the first downlink data packet.

t9 represents the delay from when the UE sends the "MEASUREMENT REPORT" to when it receives the "RADIO BEAR RECONFIGURATION uplink". This indicator reflects the delay in processing the measurement report and adjusting the uplink bandwidth on the network side.

The tenth downlink delay indicates the delay from when UE receives "RADIO BEAR RECONFIGURATION downlink" (RADIO BEAR RECONFIGURATION downlink) to sending "RADIO BEAR RECONFIGURATION COMPLETE downlink". This indicator reflects the time delay required by the UE to process downlink bandwidth reconfiguration.

To sum up, for the time delay of downlink data transmission in the present invention, by introducing a new observation point—the first data packet of uplink and downlink; delay, the third downlink delay, the first uplink delay, and the tenth downlink delay are defined and summed to evaluate the delay index of downlink data transmission. in:

The sum of the first uplink time delay and the third downlink time delay is equal to the first downlink time delay, and the first uplink time delay and the third downlink time delay are further divisions of the first downlink time delay.

The first downlink delay reflects the delay from when the UE completes service establishment to waiting for the first downlink data packet to arrive at the UE.

The second downlink delay reflects the delay from when the UE receives the first downlink data packet, performs data transmission interaction, to when it is received by the network side to adjust the downlink bandwidth.

The third downlink delay reflects the delay from when the UE prepares to send the first uplink data packet to when the first downlink data packet is received in the downlink.

The tenth downlink delay reflects the delay required by the UE to process the downlink bandwidth reconfiguration.

The first uplink delay This delay indicator reflects the delay from when the UE completes service establishment to when it starts to send the first uplink data packet uplink.

Similarly, the present invention introduces a new observation point for the delay of uplink data transmission - the first data packet of uplink and downlink; through segment delay - the first uplink time delay, the second uplink time delay, t9 10. The definition and summation of the tenth uplink delay to evaluate the delay index of the uplink data transmission. in:

The first uplink delay This delay indicator reflects the delay from when the UE completes service establishment to when it starts to send the first uplink data packet uplink.

The second uplink delay reflects that from the UE sending the first data packet to the network side, the data packets are waiting to be sent out through the UE's uplink buffer, and the UE monitors the uplink buffer occupancy until the uplink buffer occupancy is higher or lower than a certain When the threshold is exceeded, the network side measurement report is reported, and the uplink bandwidth is required to be modified.

t9 reflects the time delay for the network side to process the measurement report and adjust the uplink bandwidth.

The tenth uplink delay reflects the delay required by the UE to process uplink bandwidth reconfiguration.

It should be pointed out that the observation point delay in Figures 4 and 5 is at the UE, but the observation point is not limited to the UE, and the delay of the above-mentioned data streams and messages can also be measured on the network side, and the definition of the delay index is adjusted as At the point in time at which network element observes the message and data flow, the relevant delay index definition is obtained. For example, if the observation is performed at the RNC, t7 is defined as the time delay from the RNC observing the service establishment completion message to the RNC observing the traffic measurement control configuration message.

Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the present invention. The spirit and scope of the invention.

Claims (7)

1. the optimization method of a packet wireless communication network is characterized in that, comprises following steps:

Measure the time delay index in the packet switching service handshaking procedure;

Judge that whether measured time delay index is above presetting thresholding, if then cause the equipment of problem or functional module wherein according to this time delay index location;

To this equipment or functional module wherein being optimized according to this time delay index;

Wherein, described time delay index is first uplink time delay, receives or sends the professional message that finishes receiving set up of expression to the time difference acquisition of sending between up first packet by measuring subscriber equipment;

If first uplink time delay surpasses and to preset thresholding, then improve in this subscriber equipment treatment effeciency: be used to activate processing module that context receives and the module that is used for the application layer business initializtion with lower module.

2. the optimization method of a packet wireless communication network is characterized in that, comprises following steps:

Measure the time delay index in the packet switching service handshaking procedure;

Judge that whether measured time delay index is above presetting thresholding, if then cause the equipment of problem or functional module wherein according to this time delay index location;

To this equipment or functional module wherein being optimized according to this time delay index;

Wherein, described time delay index is second uplink time delay, sends up first packet to the time difference acquisition of sending between the measurement report by measuring subscriber equipment;

Preset thresholding if second uplink time delay surpasses, then expression need improve the triggered time configuration of uplink bandwidth of network.

3. the optimization method of a packet wireless communication network is characterized in that, comprises following steps:

Measure the time delay index in the packet switching service handshaking procedure;

Judge that whether measured time delay index is above presetting thresholding, if then cause the equipment of problem or functional module wherein according to this time delay index location;

To this equipment or functional module wherein being optimized according to this time delay index;

Wherein, described time delay index is the tenth uplink time delay, receives that by measuring subscriber equipment uplink service bandwidth reconfiguration message reshuffles the time difference acquisition of finishing between the message to sending the uplink service bandwidth;

If the tenth uplink time delay surpasses and to preset thresholding, then revise the parameter setting that network side is used to control the time delay of subscriber equipment upstream bandwidth reconfiguration process, perhaps optimize the processing delay of subscriber equipment to the upstream bandwidth reconfiguration message.

4. the optimization method of a packet wireless communication network is characterized in that, comprises following steps:

Measure the time delay index in the packet switching service handshaking procedure;

Judge that whether measured time delay index is above presetting thresholding, if then cause the equipment of problem or functional module wherein according to this time delay index location;

To this equipment or functional module wherein being optimized according to this time delay index;

Wherein, described time delay index is the first descending time delay, receives or sends the professional message that finishes receiving set up of expression to the time difference acquisition of receiving between descending first packet by measuring subscriber equipment;

Preset thresholding if the first descending time delay surpasses, then further to check it is that subscriber equipment sends the excessive or network side of the time delay of up first packet to send the time delay of descending first packet excessive.

5. the optimization method of a packet wireless communication network is characterized in that, comprises following steps:

Measure the time delay index in the packet switching service handshaking procedure;

Judge that whether measured time delay index is above presetting thresholding, if then cause the equipment of problem or functional module wherein according to this time delay index location;

To this equipment or functional module wherein being optimized according to this time delay index;

Wherein, described time delay index is the second descending time delay, receives that by measuring subscriber equipment descending first packet is to receiving that network side carries out the time difference acquisition between the message that downlink bandwidth adjusts;

If the second descending time delay surpasses and to preset thresholding, check further then whether the setting of professional reconfiguration parameters trigger condition of network is reasonable, and whether network is excessive to the outlet time delay of internet.

6. the optimization method of a packet wireless communication network is characterized in that, comprises following steps:

Measure the time delay index in the packet switching service handshaking procedure;

Judge that whether measured time delay index is above presetting thresholding, if then cause the equipment of problem or functional module wherein according to this time delay index location;

To this equipment or functional module wherein being optimized according to this time delay index;

Wherein, described time delay index is the 3rd descending time delay, sends up first packet to receiving that the time difference between descending first packet obtains by measuring subscriber equipment;

Preset thresholding if the 3rd descending time delay surpasses, then improve network side and be used for the functional module performance that the data surface number passes.

7. the optimization method of a packet wireless communication network is characterized in that, comprises following steps:

Measure the time delay index in the packet switching service handshaking procedure;

Judge that whether measured time delay index is above presetting thresholding, if then cause the equipment of problem or functional module wherein according to this time delay index location;

To this equipment or functional module wherein being optimized according to this time delay index;

Wherein, described time delay index is the tenth descending time delay, receives that by measuring subscriber equipment downlink business bandwidth reconfiguration message reshuffles the time difference acquisition of finishing between the message to sending the downlink business bandwidth;

Preset thresholding if the tenth descending time delay surpasses, then revise the parameter setting that network side is used to control this time delay, perhaps optimize the processing delay of subscriber equipment the downlink bandwidth reconfiguration message.

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