CN101137078B - Paging method, paging system and related equipment - Google Patents

Abstract

The invention relates to the field of mobile communication, and discloses a paging method, a paging system and related equipment, so that the terminal can reduce or avoid the interruption of service reception carried on a dedicated carrier when it periodically returns to a shared carrier to monitor paging. In the present invention, the terminal and the network side determine the opportunity for the terminal to monitor the shared carrier in the time slots when the terminal does not receive services carried on the dedicated carrier through negotiation. The time parameters for monitoring can be determined by the network side. If there are multiple sets of available time parameters determined by the network side, a set of time parameters used by the fewest terminals can be selected. It is also possible to determine all available time parameters by the network side and select from them by the terminal. When the terminal reports the scheduling information of the MBMS that needs to be received, it can only report the ID of the MBMS, and the network side can find the corresponding MBMS information according to the ID, or directly report the information of which time slots need or do not need to receive the MBMS.

Description

Paging method, paging system and related equipment

technical field

The invention relates to the field of mobile communication, in particular to paging technology.

Background technique

Mobile communication technology has developed rapidly since it entered the second generation of mobile communication (The Second Generation, referred to as "2G") at the end of the 20th century. With the increase in the number of users and the continuous improvement of the requirements for business types and performance, the third generation mobile communication (The Third Generation, referred to as "3G") with stronger data transmission capabilities has entered a stage of rapid development, and the field of mobile communication has shown The situation of gradual transition from 2G to 3G.

While the 3G system is gradually entering commercial use, the industry has started research on new technologies, which are called Super 3G (Super 3G) technology, or 3G evolved technology, also known as E3G technology.

In order to ensure competitiveness for a longer period of time (such as 10 years or longer), the 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as "3GPP") started the LTE project from the second half of 2004.

A very important content in the LTE project is the status division of the protocol. At present, according to the resource status used by the terminal during the mobile process and the degree of connection with the network side, the terminal is divided into three states, namely, the detached state (LTE_detached), the idle state (LTE_idle) and the activated state (LTE_active), respectively corresponding to There are three similar states in the existing Wideband Code Division Multiple Access (WCDMA) network: separate state, idle state and connected state (connected). The detached state (LTE_detached), the idle state (LTE_idle) and the active state (LTE_active) are the states of Radio Resource Control ("RRC"). Because LTE has not yet formed a practical standard, the three states may be There are different names, but essentially the same. Generally speaking, in the separated state, the network side considers that the terminal has left the network, and the typical situation is that the terminal is turned off; in the idle state, the terminal has logged in to the network, but is not connected to the network side, and the network side knows the approximate location of the terminal, and can call When the terminal is found, the typical situation is that the terminal is standby; when the terminal is in the active state, it is connected to the network side, and the typical situation is that the terminal is using wireless services, such as making calls.

In the existing WCDMA system, when the terminal is in the idle state, the cell paging channel (CELL_PCH) state and the radio access paging channel (URA_PCH) state, in order to save power, the terminal adopts discontinuous reception (DRX) to receive Data from the network side. When the network side has data to be transmitted to the terminal, it sends a paging message on the public paging channel (Paging Channel, "PCH"), so that the terminal can perform corresponding operations after receiving the paging message. In order to reduce the time for the terminal to monitor the channel and improve the effective sleep mode operation for the terminal, the network side provides the terminal with a paging indication (Paging Indicator, "PI" for short), notifies the terminal to receive the paging message. Specifically, a terminal in the idle state, the CELL_PCH state and the URA_PCH state monitors the PI on the PICH channel at a paging occasion in each DRX cycle. Wherein, the paging occasion is calculated according to the value of DRX, and the PI to be read by the terminal at the paging occasion is calculated according to the International Mobile Station Identity (IMSI) of the terminal. If the terminal is monitoring the PICH and the information indicated by the PI is "there is a paging message to follow", then by calculating the Paging Message Receiving Occasion (Paging Message Receiving Occasion), the Secondary-Common Control Physical Channel (Secondary-Common Control Physical Channel, referred to as "SCCPCH") to receive paging messages (SCCPCH is a secondary common control physical channel where the paging control channel is mapped to the physical layer). In order for the terminal to accurately receive the paging message from the network side, the network side and the terminal have negotiated its DRX parameters in advance, so that the network side can send PI at an appropriate time, and the terminal can also discover and receive the paging message at the corresponding time. The PICH receives its own PI information.

Wherein, the calculation formula of the paging opportunity is as follows:

Paging timing = {(IMSI/K)mod(DRX cycle length/PBP)}×PBP+n×DRX cycle length+Frame Offset

In the above formula, IMSI is the International Mobile Subscriber Identity code; K is the number of available SCCPCH channels carrying the paging channel (Paging Channel, referred to as "PCH"); DRX cycle length is the discontinuous reception cycle; PBP is the paging block Period, for frequency division duplex (Freq terminal ncyDivision Duplex, referred to as "FDD"), PBP=1; Frame Offset is the frame offset, for FDD, the frame offset is 0, for time division duplex (Time Division Duplex, referred to as "TDD"), the frame offset value is specified in the system message.

The calculation formula for receiving the paging message is as follows:

Paging message receiving timing = paging timing + NPICH + NGAP + {(DRX Index modNp)mod NPCH}×2

Among them, NPICH is the number of frames carrying the paging indication frame, which is equal to the repetition length of the paging indication frame; NGAP is the difference between the last frame carrying the paging indication and the first frame carrying the paging message at a certain paging occasion The number of frames; DRX Index is the discontinuous reception index, and its value is IMSI/8192; for FDD, Np is the number of paging indications in a frame, and for TDD, Np is the number of paging indications in a paging block ; NPCH is the number of paging groups. NPICH, Np, and NPCH are delivered in system messages.

The above describes the paging method and the calculation method of the paging timing when the terminal is in discontinuous reception. The following introduces the Multimedia Broadcast/Multicast Service (MBMS) proposed by 3GPP.

Multicasting and broadcasting are techniques for delivering data from one source to multiple destinations. In traditional mobile communication networks, Cell Broadcast Service (CBS) allows low bit rate data to be sent to all users through the cell shared broadcast channel, and this service belongs to the message service.

Now, people's demand for mobile communication is no longer satisfied with telephone and message services. With the rapid development of the Internet (Internet), a large number of mobile multimedia services have emerged. Some of these mobile multimedia services require multiple users to receive the same data at the same time, such as video on demand, TV broadcasting, video conferencing, online education, and interactive games. Compared with general data services, these mobile multimedia services have the characteristics of large data volume, long duration, and delay sensitivity. The current Internet Protocol (Internet Protocol, referred to as "IP") multicast and broadcast technology is only suitable for wired IP communication networks, not for mobile communication networks, because mobile communication networks have specific network structures, functional entities and wireless interfaces, all of which are It is different from wired communication IP network.

In order to effectively utilize the resources of the mobile communication network, 3GPP proposed the MBMS service of the mobile communication network, so as to provide a point-to-multipoint service in which one data source sends data to multiple users in the mobile communication network, realize network resource sharing, and improve network resource utilization. utilization, especially air interface resources. The MBMS proposed by 3GPP can not only realize the multicast and broadcast of plain text and low-rate messages, but also realize the multicast and broadcast of high-speed multimedia services, which undoubtedly conforms to the trend of future mobile data development.

In the LTE project, the MBMS service is also a very important service. In order to simplify the design of the network structure, people put forward the concept of separate downlink carrier MBMS. Control data, unicast data (unicast data) is not transmitted on a dedicated carrier.

However, since the dedicated downlink carrier is a frequency point dedicated to transmitting MBMS services during network planning, terminals that are using the dedicated downlink carrier to receive MBMS services cannot receive information transmitted on the shared carrier, such as paging messages (paging message) and so on. Therefore, when the terminal receives the MBMS service on the dedicated carrier, how to make the paging message reach the terminal effectively becomes a research hotspot.

There are two existing solutions to this problem:

Solution 1: In order to enable those terminals receiving MBMS services using a dedicated downlink carrier to receive paging instructions and paging messages normally, a set of paging channels ( Including PCH, PICH, etc.) and paging methods to complete the sending of paging messages, that is, it is necessary to design a separate pilot and its channel structure for the unicast paging channel. However, this method will undoubtedly increase the complexity of the system.

Solution 2: The terminal periodically returns to the unicast network to monitor the paging occasion on the PICH channel to determine whether there is a paging belonging to itself. This method does not need to add new channels, and it is more convenient to implement. However, because the unicast network and the MBMS service use different carriers, and the general terminal can only monitor one carrier at the same time, when the terminal returns to the unicast network to monitor PICH frames, the dedicated downlink The MBMS service under the carrier will be interrupted, which affects the quality of the MBMS service.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a paging method, paging system and related equipment, so that the terminal can reduce or avoid the interruption of service reception carried on the dedicated carrier when it periodically returns to the shared carrier to monitor paging .

To achieve the above object, the present invention provides a paging method, comprising the following steps:

The terminal negotiates with the network side to determine the time parameter for the terminal to monitor the shared carrier in the time slot when it does not receive the service carried by the dedicated carrier;

The terminal and the network side perform paging according to the time parameter determined through the negotiation.

Wherein, the step of performing paging between the terminal and the network side according to the time parameter determined through the negotiation includes the following steps:

The network side sends a paging indication or a paging message to the terminal according to the time parameter determined through the negotiation;

The terminal monitors the paging indication or paging message on the shared carrier according to the time parameter determined through the negotiation.

Furthermore, in the method, the service in the dedicated carrier is a multimedia broadcast/multicast service MBMS;

The shared carrier is a carrier of a unicast network.

In addition, in the method, the terminal and the network side negotiate to determine the time parameters for the terminal to sense the carrier of the unicast network in the time slots when the terminal does not receive MBMS according to the MBMS scheduling information.

In addition, in the method, the step of the terminal negotiating with the network side to determine the time parameter includes the following sub-steps:

The terminal acquires the MBMS scheduling information before entering the dedicated carrier;

The terminal initiates a radio resource control RRC process, and reports the scheduling information of the MBMS to be received to the network side;

The network side determines and notifies the terminal of the time parameter according to the MBMS scheduling information reported by the terminal.

In addition, in the method, the step of the terminal negotiating with the network side to determine the time parameter includes the following sub-steps:

The terminal enters a dedicated carrier and receives the MBMS scheduling information;

The terminal enters the unicast network, initiates an RRC process, and reports the scheduling information of the MBMS to be received to the network side;

The network side determines and notifies the terminal of the time parameter according to the MBMS scheduling information reported by the terminal.

In addition, in the method, the step of the terminal negotiating with the network side to determine the time parameter includes the following sub-steps:

The terminal acquires the MBMS scheduling information before entering the dedicated carrier;

The terminal initiates an RRC process, and reports the scheduling information of the MBMS to be received to the network side;

The network side determines and notifies the terminal of all available time parameters according to the MBMS scheduling information reported by the terminal;

The terminal selects one of all available time parameters, and reports the selected time parameter to the network side.

In addition, in the method, the step of the terminal negotiating with the network side to determine the time parameter includes the following sub-steps:

The terminal enters a dedicated carrier and receives the MBMS scheduling information;

The terminal enters the unicast network, initiates an RRC process, and reports the scheduling information of the MBMS to be received to the network side;

The network side determines and notifies the terminal of all available time parameters according to the MBMS scheduling information reported by the terminal;

The terminal selects one of all available time parameters, and reports the selected time parameter to the network side.

In addition, in the method, the step of the terminal negotiating with the network side to determine the time parameter includes the following sub-steps:

The terminal acquires the MBMS scheduling information before entering the dedicated carrier;

The terminal determines the time parameter according to the scheduling information of the MBMS;

The terminal initiates an RRC process, and reports the determined time parameter to the network side.

In addition, in the method, the step of the terminal negotiating with the network side to determine the time parameter includes the following sub-steps:

The terminal enters a dedicated carrier and receives the MBMS scheduling information;

The terminal determines the time parameter according to the scheduling information of the MBMS;

The terminal enters the unicast network, initiates an RRC process, and reports the determined time parameter to the network side.

In addition, in the method, the scheduling information of the MBMS to be received reported by the terminal is one of the following:

The identification information of the MBMS to be received by the terminal after entering the dedicated carrier;

On which time slots the terminal needs to receive MBMS information;

Information on which timeslots the terminal is idle does not need to receive MBMS.

In addition, in the method, the time parameter is a frame offset without the service transmission in the dedicated carrier and a period length during which the terminal periodically monitors the shared carrier.

In addition, in the method, the network side includes the following sub-steps when determining the time parameter:

The network side determines all available time parameters according to the MBMS scheduling information reported by the terminal, and if there are at least two groups of available time parameters, select according to one of the following methods:

Select a set of time parameters with the least number of terminals currently using this time parameter;

Select in a preset order of priority; or

random selection.

Furthermore, in the method, the terminal selects one of all available time parameters in one of the following ways:

Select in preset order of priority; or,

random selection.

In addition, in the method, if the transmission situation of the service carried on the dedicated carrier changes, the terminal and the network side renegotiate to determine the time parameter.

Furthermore, in the method, the terminal obtains the scheduling information of the MBMS from a control channel or a scheduling channel.

The present invention also provides a paging system, which includes a network side and a terminal, and the network side and the terminal respectively include means of negotiating and determining the time parameter for the terminal to listen to the shared carrier in the time slot that does not receive the service carried on the dedicated carrier unit;

The network side also includes a unit for sending a paging instruction or a paging message to the terminal according to the time parameter determined through the negotiation;

The terminal further includes a unit for monitoring the paging indication or paging message on the shared carrier according to the time parameter determined through the negotiation.

Wherein, the service in the dedicated carrier is MBMS; the shared carrier is a carrier of a unicast network;

The terminal negotiates with the network side to determine the time parameters for the terminal to sense the carrier of the unicast network in the time slots when the terminal does not receive MBMS according to the MBMS scheduling information.

The present invention also provides a network side device, including:

A unit for negotiating with the terminal to determine the time parameter for the terminal to listen to the shared carrier in the time slot when the terminal does not receive the service carried on the dedicated carrier;

A unit for sending a paging instruction or a paging message to the terminal according to the time parameter determined through the negotiation.

The present invention also provides a terminal, including a unit for negotiating with the network side to determine the time parameter for the terminal to listen to the shared carrier in the time slot when the terminal does not receive the service carried on the dedicated carrier;

A unit that monitors the paging indication or paging message on the shared carrier according to the time parameter determined through the negotiation.

Through comparison, it can be found that the main difference between the technical solution of the present invention and the prior art is that the terminal and the network side negotiate to determine the timing for the terminal to listen to the shared carrier in the time slots that do not receive services carried on the dedicated carrier. Because the terminal does not need to receive services in the dedicated carrier during monitoring, the reception of services carried on the dedicated carrier will not be interrupted due to monitoring.

The monitoring time parameter can be determined by the network side, thereby reducing the computing requirements on the terminal and reducing the power consumption of the terminal.

If there are multiple sets of available time parameters determined by the network side, a set of time parameters used by the fewest terminals may be selected. Because the network side knows the time parameters that all terminals monitor in a paging area, it is fully capable of doing so. In this manner, the number of terminals distributed on each set of time parameters can be roughly even, and the possibility of collisions during paging can be reduced.

It is also possible to determine all available time parameters by the network side and select from them by the terminal. This way makes it possible for the terminal to make a decision in combination with some additional information of itself, so that the decision result is more suitable for the actual needs of the terminal.

When the terminal reports the MBMS scheduling information that needs to be received, it can only report the ID of the MBMS, and the network side can find the corresponding MBMS information according to the ID. This solution requires less air interface resources; it can also report which time slots need Or there is no need to receive MBMS information. Using this solution, the base station can directly determine the monitoring time parameter according to the reported information, and no longer needs to interact with other network-side devices to find corresponding MBMS information, which simplifies the processing of the network side.

When the MBMS service changes, re-negotiation is required between the terminal and the network side to ensure that the monitoring time parameter can fully adapt to the new MBMS transmission situation.

Description of drawings

FIG. 1 is a flow chart of a paging method according to a first embodiment of the present invention;

Fig. 2 is a schematic diagram showing that existing paging occasions do not conflict with MBMS services in the paging method according to the first embodiment of the present invention;

FIG. 3 is a schematic diagram of a conflict between existing paging occasions and MBMS services in the paging method according to the first embodiment of the present invention;

FIG. 4 is a flowchart of a paging method according to a second embodiment of the present invention;

FIG. 5 is a flow chart of a paging method according to a third embodiment of the present invention;

FIG. 6 is a flowchart of a paging method according to a fourth embodiment of the present invention;

FIG. 7 is a flow chart of a paging method according to a fifth embodiment of the present invention;

Fig. 8 is a flowchart of a paging method according to the sixth 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.

The core of the present invention is that the terminal and the network side negotiate to determine the opportunity for the terminal to monitor the shared carrier in the time slot when it does not receive the service carried by the dedicated carrier. During monitoring, the terminal does not need to receive services in the dedicated carrier, so the reception of services carried on the dedicated carrier will not be interrupted due to monitoring. Wherein, the service in the dedicated carrier is MBMS, and the shared carrier is the carrier of the unicast network.

The following describes the paging method according to the first embodiment of the present invention according to the principle of the present invention.

As shown in Fig. 1, in step 110, the terminal acquires MBMS scheduling information before entering the dedicated carrier. Specifically, you can read the Broadcast Control Channel (Broadcast Control Channel, referred to as "BCCH"), or read the MBMS point-to-multipoint Control Channel (MBMS point-to-multipoint Control Channel, referred to as "MCCH") or MBMS point-to-multipoint scheduling The channel (MBMS point-to-multipoint Schedule Channel, referred to as "MSCH") obtains the scheduling information of the MBMS service.

Then enter step 120, the terminal initiates a radio resource control (Radio Resource Control, referred to as "RRC") process, and reports to the network side the scheduling information of the MBMS that the terminal needs to receive. When the terminal reports the MBMS scheduling information that needs to be received, it can only report the ID of the MBMS, and the network side can find the corresponding MBMS information according to the ID. This solution requires less air interface resources; it can also report which time slots need Or there is no need to receive MBMS information. Using this solution, the base station can directly determine the monitoring time parameter according to the reported information, and no longer needs to interact with other network-side devices to find corresponding MBMS information, which simplifies the processing of the network side. In addition, the RRC process initiated by the terminal may be an existing RRC process in the prior art, such as a cell update process, or a new RRC process. If the terminal is in an idle state at this time, the terminal needs to establish an RRC connection.

Then enter step 130, the network side determines the time parameter for the terminal to sense the carrier of the unicast network in the time slot not receiving MBMS according to the MBMS scheduling information reported by the terminal. The determined time parameter may have two situations: one is that under the condition that there is no reception conflict between the paging occasion calculated according to the prior art and the MBMS service, the relevant parameters of the existing paging occasion may be used as the The determined time parameters are shown in Figure 2. The second is when there is a reception conflict between the paging occasion calculated according to the prior art and the MBMS service, that is to say, the system frame number corresponding to the paging occasion calculated by the terminal according to the existing formula ( System Frame Number, referred to as "SFN") is receiving MBMS services, as shown in Figure 3, then the network side determines that the terminal will go to the unicast network in the time slot that does not receive MBMS according to the MBMS scheduling information reported by the terminal. Time parameter for carrier sense. Wherein, the time parameter includes the frame offset of no MBMS service transmission in the dedicated carrier and the period length of the terminal's periodic carrier sense to the unicast network. By determining the time parameter for monitoring on the network side, the calculation requirements on the terminal can be reduced, and the power consumption of the terminal can be reduced.

According to the scheduling information of the MBMS, it is possible to know the idle time slots for not receiving the MBMS, and these idle time slots usually appear periodically. And paging occasion=offset+n*cycle length, where offset and cycle length are variables. Given the distribution of free time slots, it is a mathematical problem to find the paging opportunity that falls completely in the free time slots. There are many solutions to this problem. For example, the offset can be taken in a free time slot, and all possible cycle lengths can be tried one by one, and the cycle length that the paging opportunity falls completely in the free time slot can be recorded. Shifting and summing these cycle lengths is the solution to the above problem. As another example, if the free time slot is periodic, and the minimum period of the free time slot is M, then the solution to the above problem can be: the offset is a certain free time slot, and the cycle length is k×M, where k is a natural number .

If there are multiple sets of available time parameters determined by the network side, select one of them according to one of the following methods: select a set of time parameters with the least number of terminals currently using this time parameter; or, according to a preset priority order Choose; or, choose at random. Using the first method can make the number of terminals distributed on each group of time parameters roughly uniform, so as to reduce the possibility of collisions during paging, and, because the network side knows the time parameters that all terminals monitor in a paging area, so It is perfectly possible to choose a set of time parameters that is used by the fewest terminals.

Then enter step 140, the network side sends the determined time parameter to the terminal.

Then enter step 150, the network side sends a paging instruction or a paging message to the terminal on the corresponding SFN according to the determined time parameter.

Then enter step 160, the terminal enters the dedicated carrier, and listens to the paging indication or paging message on the corresponding SFN on the carrier of the unicast network according to the received time parameter. Since the monitoring is performed according to the determined time parameter, the terminal does not need to receive services in the dedicated carrier while monitoring, so that the reception of MBMS services in the dedicated carrier will not be interrupted due to monitoring the paging indication or paging message.

The network side and the terminal can calculate the corresponding SFN according to the following formula:

SFN (or the timing of receiving paging) = frame offset without MBMS service transmission in the dedicated carrier + n × period length of the terminal's periodic carrier sense to the unicast network, n = 0, 1, 2..., SFN It is smaller than the maximum value defined by the network side.

The paging method according to the second embodiment of the present invention will be described below according to the principles of the present invention.

The second embodiment of the present invention is roughly the same as the first embodiment, the only difference being that in the first embodiment, the terminal acquires the MBMS scheduling information before entering the dedicated carrier, and directly initiates the RRC process to report the MBMS scheduling information to the network Then enter the dedicated carrier to receive MBMS service data; in this embodiment, the terminal first enters the dedicated carrier, then receives the MBMS scheduling information, and returns to the carrier of the unicast network in the time slot that does not receive MBMS, and initiates the RRC process , reporting the scheduling information of the MBMS to be received to the network side.

Specifically as shown in FIG. 4, in step 401, the terminal enters a dedicated carrier network.

Then enter step 402, the terminal receives the MBMS service data it needs to receive through the MBMS Point-to-Multipoint Traffic Channel ("MTCH" for short).

Then enter step 403, the terminal receives the scheduling information of the MBMS service it needs to receive through the MCCH.

Then enter step 404, the terminal returns to the carrier of the unicast network in the time slot not receiving MBMS according to the scheduling information of the MBMS, initiates the RRC process, and reports the scheduling information of the MBMS it needs to receive to the network side. When the terminal reports the MBMS scheduling information that needs to be received, it can only report the ID of the MBMS, and the network side can find the corresponding MBMS information according to the ID. This solution requires less air interface resources; it can also report which time slots need Or there is no need to receive MBMS information. Using this solution, the base station can directly determine the monitoring time parameter according to the reported information, and no longer needs to interact with other network-side devices to find corresponding MBMS information, which simplifies the processing of the network side. In addition, the RRC process initiated by the terminal may be an existing RRC process in the prior art, such as a cell update process, or a new RRC process. If the terminal is in an idle state at this time, the terminal needs to establish an RRC connection.

Steps 405 to 407 are similar to steps 130 to 150 and will not be repeated here.

In step 408, the terminal monitors the paging indication or paging message on the corresponding SFN on the carrier of the unicast network according to the received time parameter. Since the monitoring is performed according to the determined time parameter, the terminal does not need to receive services in the dedicated carrier when monitoring, so that the reception of MBMS services in the dedicated carrier will not be interrupted due to monitoring the paging indication or paging message.

The paging method according to the third embodiment of the present invention will be described below.

The third embodiment of the present invention is substantially the same as the first embodiment, the only difference being that in the first embodiment, the network side directly determines the time parameter according to the MBMS scheduling information reported by the terminal, and notifies the terminal of the determined time parameter; However, in this embodiment, the network side determines all available time parameters according to the MBMS scheduling information reported by the terminal, and sends all available time parameters to the terminal, and the terminal selects one from all available time parameters, as the final time parameter.

As specifically shown in FIG. 5 , step 501 and step 502 are similar to step 110 and step 120 , and will not be repeated here.

Then enter step 503, the network side determines all available time parameters for the terminal to sense the carrier of the unicast network in the time slot not receiving MBMS according to the MBMS scheduling information reported by the terminal. The determined time parameters include the following two situations: one is that when there is no receiving conflict between the paging occasion calculated according to the prior art and the MBMS service, the relevant parameters of the existing paging occasion can be used as the The available time parameters are shown in Figure 2. The second is when there is a receiving conflict between the paging occasion calculated according to the existing technology and the MBMS service, that is to say, there is an MBMS service on the SFN corresponding to the paging occasion calculated by the terminal according to the existing formula. When the service is being received, as shown in Figure 3, the network side determines other available time parameters for the terminal to monitor the carrier of the unicast network in the time slot not receiving MBMS according to the MBMS scheduling information reported by the terminal. Wherein, the time parameter includes the frame offset of no MBMS service transmission in the dedicated carrier and the period length of the terminal's periodic carrier sense to the unicast network. All available time parameters are determined by the network side, which can reduce the calculation requirements on the terminal and reduce the power consumption of the terminal.

Then enter step 504, the network side sends all the determined available time parameters to the terminal.

Then enter step 505, the terminal selects a group from all available time parameters received. Specifically, it can be selected according to the preset priority order, or can be selected randomly. In this way, the terminal can make a decision in combination with some additional information of itself, so that the decision result is more suitable for the actual needs of the terminal.

Then enter step 506, the terminal reports the finally selected time parameter to the network side.

Then enter step 507, the network side sends a paging instruction or a paging message to the terminal on the corresponding SFN according to the received time parameter.

Then enter step 508, the terminal enters the dedicated carrier, and listens to the paging indication or paging message on the corresponding SFN on the carrier of the unicast network according to the received time parameter. Since the monitoring is performed according to the determined time parameter, the terminal does not need to receive services in the dedicated carrier when monitoring, so that the reception of MBMS services in the dedicated carrier will not be interrupted due to monitoring the paging indication or paging message.

The network side and the terminal can also calculate the corresponding SFN according to the following formula:

SFN (or the timing of receiving paging) = frame offset without MBMS service transmission in the dedicated carrier + n × period length of the terminal's periodic carrier sense to the unicast network, n = 0, 1, 2..., SFN It is smaller than the maximum value defined by the network side.

The paging method according to the fourth embodiment of the present invention will be described below.

The fourth embodiment of the present invention is substantially the same as the second embodiment, the only difference being that in the second embodiment, the network side directly determines the time parameter according to the MBMS scheduling information reported by the terminal, and notifies the terminal of the determined time parameter; However, in this embodiment, the network side determines all available time parameters according to the MBMS scheduling information reported by the terminal, and sends all available time parameters to the terminal, and the terminal selects one from all available time parameters, as the final time parameter.

As specifically shown in FIG. 6 , steps 601 to 604 are similar to steps 401 to 404 , and will not be repeated here.

Then enter step 605, the network side determines all available time parameters for the terminal to sense the carrier of the unicast network in the time slot not receiving MBMS according to the MBMS scheduling information reported by the terminal. The determined time parameters also include the following two situations: one is that in the case that there is no reception conflict between the paging occasion calculated according to the prior art and the MBMS service, the relevant parameters of the existing paging occasion can be used As available time parameters, as shown in Figure 2. The second is when there is a receiving conflict between the paging occasion calculated according to the existing technology and the MBMS service, that is to say, there is an MBMS service on the SFN corresponding to the paging occasion calculated by the terminal according to the existing formula. The service is being received, as shown in Figure 3. In this case, the network side determines other available unicast network carrier monitors for the terminal in the time slots when the terminal does not receive MBMS according to the MBMS scheduling information reported by the terminal. time parameter. Wherein, the time parameter includes the frame offset of no MBMS service transmission in the dedicated carrier and the period length of the terminal's periodic carrier sense to the unicast network. All available time parameters are determined by the network side, which can reduce the calculation requirements on the terminal and reduce the power consumption of the terminal.

Then enter step 606, the network side sends all the determined available time parameters to the terminal.

Then enter step 607, the terminal selects a group from all available time parameters received. Specifically, it can be selected according to the preset priority order, or can be selected randomly. In this way, the terminal can make a decision in combination with some additional information of itself, so that the decision result is more suitable for the actual needs of the terminal.

Then enter step 608, the terminal reports the finally selected time parameter to the network side.

Step 609 and step 610 are similar to step 407 and step 408 .

The paging method according to the fifth embodiment of the present invention will be described below.

As shown in FIG. 7, in step 701, the terminal obtains MBMS scheduling information before entering a dedicated carrier. Specifically, the scheduling information of the MBMS service can be obtained by reading the BCCH or the MCCH.

Then enter step 702, the terminal determines the time parameter according to the acquired MBMS scheduling information. The determined time parameters may have two situations: one is that when there is no reception conflict between the paging occasion calculated by the terminal according to the prior art and the MBMS service, the relevant parameters of the existing paging occasion can be used As the determined time parameter, it is shown in FIG. 2 . The second is when there is a reception conflict between the paging occasion calculated by the terminal according to the existing technology and the MBMS service, that is to say, there is an SFN corresponding to the paging occasion calculated by the terminal according to the existing formula. When the MBMS service is being received, as shown in FIG. 3 , the terminal determines the time parameter for the carrier sense of the unicast network in the time slot when the terminal does not receive MBMS according to the MBMS scheduling information. Wherein, the time parameter includes the frame offset of no MBMS service transmission in the dedicated carrier and the period length of the terminal's periodic carrier sense to the unicast network.

If there are multiple groups of available time parameters determined by the terminal, one of them is selected according to the preset priority sequence, or randomly. Therefore, the number of terminals distributed on each set of time parameters can be made approximately uniform, so as to reduce the possibility of collisions during paging.

Then enter step 703, the terminal initiates an RRC process, and reports the determined time parameter to the network side. The RRC process initiated by the terminal may be an existing RRC process in the prior art, such as a cell update process, or a new RRC process. If the terminal is in an idle state at this time, the terminal needs to establish an RRC connection.

Then enter step 704, the network side sends a paging instruction or a paging message to the terminal on the corresponding SFN according to the received time parameter.

Then enter step 705, the terminal enters the dedicated carrier, and listens to the paging indication or paging message on the corresponding SFN on the carrier of the unicast network according to the received time parameter. Monitoring is performed according to the determined time parameter, so that the terminal does not need to receive services in the dedicated carrier when monitoring, so that the reception of MBMS services in the dedicated carrier will not be interrupted due to monitoring the paging indication or paging message.

The paging method according to the sixth embodiment of the present invention will be described below.

The sixth embodiment of the present invention is substantially the same as the fifth embodiment, the only difference being that in the fifth embodiment, the terminal acquires MBMS scheduling information before entering the dedicated carrier, and determines the time parameter according to the acquired MBMS scheduling information, and report the determined time parameter to the network side through the RRC process; and in this embodiment, the terminal first enters the dedicated carrier, receives MBMS scheduling information in the dedicated carrier, determines the time parameter according to the acquired MBMS scheduling information, and The time slot that does not receive MBMS returns to the carrier of the unicast network, initiates the RRC process, and reports the determined time parameter to the network side through the RRC process.

Specifically, as shown in FIG. 8, in step 801, the terminal enters the dedicated carrier network.

Then enter step 802, the terminal receives the MBMS service data it needs to receive through the MTCH.

Then enter step 803, the terminal receives the scheduling information of the MBMS service it needs to receive through the MCCH.

Steps 804 to 806 are similar to steps 702 to 704 and will not be repeated here.

In step 807, the terminal monitors the paging indication or paging message on the corresponding SFN on the carrier of the unicast network according to the received time parameter. Since the monitoring is performed according to the determined time parameter, the terminal does not need to receive services in the dedicated carrier when monitoring, so that the reception of MBMS services in the dedicated carrier will not be interrupted due to monitoring the paging indication or paging message.

It is worth mentioning that, in the above embodiments, during the paging and monitoring process of the network side and the terminal on the carrier of the unicast network according to the determined time parameters, if the transmission status of the MBMS service in the dedicated carrier changes , then the terminal renegotiates with the network side to determine the time parameter; in addition, when the terminal switches the MBMS service it needs to receive, the terminal also needs to renegotiate with the network side to determine the time parameter, so as to ensure that the monitoring time parameter can fully adapt to the new MBMS transmission situation.

The paging system according to the seventh embodiment of the present invention will be described below.

The paging system includes a network side and a terminal, and the network side and the terminal respectively include a unit for negotiating and determining the time parameter for the terminal to listen to the shared carrier in the time slot that does not receive the service carried on the dedicated carrier; in addition, the network side also includes a unit according to the negotiation A unit that sends a paging indication or a paging message to the terminal at a determined time parameter; the terminal also includes a unit that monitors the paging indication or paging message on the shared carrier according to the time parameter determined through negotiation. Wherein, the service in the dedicated carrier is MBMS; the shared carrier is the carrier of the unicast network. The terminal and the network side negotiate to determine the time parameters for the terminal to sense the carrier of the unicast network in the time slots when the terminal does not receive the MBMS according to the MBMS scheduling information. Since the terminal listens to the carrier of the unicast network in the time slot not receiving MBMS, and obtains the corresponding paging message, the reception of the service carried on the dedicated carrier will not be interrupted due to the monitoring.

In the eighth embodiment of the present invention, the network side device includes a unit that negotiates with the terminal to determine the time parameter for the terminal to listen to the shared carrier in the time slot that does not receive the service carried by the dedicated carrier; A unit of paging indication or paging message. Through the negotiation between the network side and the terminal, it is ensured that the network side sends a paging instruction or paging message to the terminal in the time slot when the terminal does not receive MBMS, so as to avoid the difference between the time slot when the terminal monitors the unicast network carrier and the time slot for receiving MBMS services. The time slots collide, resulting in the interruption of MBMS service reception in the dedicated carrier.

The terminal according to the ninth embodiment of the present invention includes a unit for negotiating with the network side to determine the time parameter for the terminal to monitor the shared carrier in the time slot when the terminal does not receive the service carried on the dedicated carrier; A unit that listens for paging indications or paging messages. Through the negotiation between the network side and the terminal, the terminal monitors the carrier of the unicast network in the time slot that does not receive MBMS, and obtains the corresponding paging message, so that the reception of the service carried on the dedicated carrier will not be interrupted due to monitoring.

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 (20)

1. a paging method is characterized in that, comprises following steps:

Terminal and network side consult to determine this terminal time parameter to shared carrier sense in the time slot that does not receive the business that is carried on special carrier;

The time parameter that described terminal and network side are determined according to described negotiation carries out paging.

2. paging method according to claim 1 is characterized in that, the step that the time parameter that described terminal and network side are determined according to described negotiation carries out paging comprises following steps:

The time parameter that described network side is determined according to described negotiation sends paging indication or the beep-page message to described terminal;

The time parameter that described terminal is determined according to described negotiation arrives shares carrier sense paging indication or beep-page message.

3. paging method according to claim 1 is characterized in that, the business in the described special carrier is multimedia broadcast/group broadcast service MBMS;

Described shared carrier wave is the carrier wave of unicast networks.

4. paging method according to claim 3 is characterized in that, described terminal and network side consult to determine that according to the schedule information of MBMS this terminal arrives the time parameter of the carrier sense of unicast networks in the time slot that does not receive MBMS.

5. paging method according to claim 4 is characterized in that, described terminal and network side consult to determine that the step of described time parameter comprises following substep:

Described terminal was obtained the schedule information of described MBMS before entering into described special carrier;

Described terminal is initiated the radio resource control RRC process, reports the schedule information of the MBMS that needs reception to described network side;

Described network side is determined according to the schedule information of the MBMS of described terminal to report and is notified described terminal described time parameter.

6. paging method according to claim 4 is characterized in that, described terminal and network side consult to determine that the step of described time parameter comprises following substep:

Described terminal enters special carrier and receives the schedule information of described MBMS;

Described terminal enters in the clean culture net, initiates the RRC process, reports the schedule information of the MBMS that needs reception to described network side;

Described network side is determined according to the schedule information of the MBMS of described terminal to report and is notified described terminal described time parameter.

7. paging method according to claim 4 is characterized in that, described terminal and network side consult to determine that the step of described time parameter comprises following substep:

Described terminal was obtained the schedule information of described MBMS before entering into described special carrier;

Described terminal is initiated the RRC process, reports the schedule information of the MBMS that needs reception to described network side;

Described network side is determined according to the schedule information of the MBMS of described terminal to report and is notified described terminal all available time parameters;

Described terminal is selected one from all available time parameters, and selected time parameter is reported to described network side.

8. paging method according to claim 4 is characterized in that, described terminal and network side consult to determine that the step of described time parameter comprises following substep:

Described terminal enters special carrier and receives the schedule information of described MBMS;

Described terminal enters under the unicast networks, initiates the RRC process, reports the schedule information of the MBMS that needs reception to described network side;

Described network side is determined according to the schedule information of the MBMS of described terminal to report and is notified described terminal all available time parameters;

Described terminal is selected one from all available time parameters, and selected time parameter is reported to described network side.

9. paging method according to claim 4 is characterized in that, described terminal and network side consult to determine that the step of described time parameter comprises following substep:

Described terminal was obtained the schedule information of described MBMS before entering into described special carrier;

Described terminal is determined described time parameter according to the schedule information of described MBMS;

Described terminal is initiated the RRC process, and determined described time parameter is reported to described network side.

10. paging method according to claim 4 is characterized in that, described terminal and network side consult to determine that the step of described time parameter comprises following substep:

Described terminal enters special carrier and receives the schedule information of described MBMS;

Described terminal is determined described time parameter according to the schedule information of described MBMS;

Described terminal enters under the unicast networks, initiates the RRC process, and determined described time parameter is reported to described network side.

11., it is characterized in that the schedule information of the MBMS that the needs of described terminal to report receive is one of following according to each described paging method in the claim 5 to 8:

The identification information of the MBMS that described terminal will receive after entering into special carrier;

Described terminal needs to receive the information of MBMS on which time slot;

Described terminal is the idle information that does not need to receive MBMS on which time slot.

12., it is characterized in that described time parameter is not have the vertical shift of described professional transmission and described terminal periodic to arrive the Cycle Length of sharing carrier sense in the special carrier according to each described paging method in the claim 1 to 10.

13., it is characterized in that described network side comprises following substep when determining described time parameter according to claim 5 or 6 described paging methods:

Described network side is determined the time parameter that all are available according to the schedule information of the MBMS of described terminal to report, if available time parameter has two groups at least, then selects according to one of following mode:

Select current one group of minimum time parameter of number of terminals of selecting this time parameter for use;

Select by the priority orders that presets; Or

Select at random.

14., it is characterized in that described terminal one of is in the following manner selected one according to claim 7 or 8 described paging methods from all available time parameters:

Select by the priority orders that presets; Or,

Select at random.

15., it is characterized in that if variation has taken place the described transmission situation that is carried on the business of special carrier, then described terminal and network side consult to determine described time parameter again according to each described paging method in the claim 1 to 10.

16., it is characterized in that described terminal obtains the schedule information of described MBMS from control channel or scheduling channel according to each described paging method in the claim 4 to 10.

17. a paging system comprises network side and terminal, it is characterized in that, described network side and terminal comprise respectively consults to determine this terminal unit to the time parameter of sharing carrier sense in the time slot that does not receive the business that is carried on special carrier;

Described network side also comprises the time parameter of determining according to described negotiation and sends the paging indication of described terminal or the unit of beep-page message;

Described terminal also comprises the time parameter of determining according to described negotiation and arrives the unit of sharing carrier sense paging indication or beep-page message.

18. paging system according to claim 17 is characterized in that, the business in the described special carrier is MBMS; Described shared carrier wave is the carrier wave of unicast networks;

Described terminal and network side consult to determine that according to the schedule information of MBMS this terminal arrives the time parameter of the carrier sense of unicast networks in the time slot that does not receive MBMS.

19. a network equipment is characterized in that, comprises:

Consult to determine this terminal unit to the time parameter of sharing carrier sense in the time slot that does not receive the business that is carried on special carrier with terminal;

The time parameter of determining according to described negotiation sends the paging indication of described terminal or the unit of beep-page message.

20. a terminal is characterized in that, comprises with network side to consult to determine this terminal unit to the time parameter of sharing carrier sense in the time slot that does not receive the business that is carried on special carrier;

The time parameter of determining according to described negotiation arrives the unit of sharing carrier sense paging indication or beep-page message.

Images