WO2011006340A1

WO2011006340A1 - Resource allocation method for physical multicast channel and device thereof

Info

Publication number: WO2011006340A1
Application number: PCT/CN2009/076092
Authority: WO
Inventors: 艾建勋; 马子江; 王斌
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-07-17
Filing date: 2009-12-25
Publication date: 2011-01-20
Also published as: CN101959137A; CN101959137B

Abstract

A resource allocation method for Physical Multicast Channel (PMCH) is disclosed by the present invention. The method includes that: a network side device allocates resource allocation cycle respectively for multiple PMCHs which have different scheduling cycles, and allocates one or multiple groups of location information for each PMCH, the location information instructs the location of the Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN) subframe resource allocated for the PMCH in the PMCH resource allocation cycle; the network side device instructs the resource allocation cycle and the location information to a terminal. A resource allocation device for PMCH is also disclosed by the present invention. With the present invention, the efficiency of the resource allocation is improved and the continuation of the PMCH subframe resource is improved.

Description

Resource allocation method and device for physical multicast channel

The present invention relates to a resource allocation technology for a physical channel, and more particularly to a resource allocation method and apparatus for a Physical Multicast Channel (PMCH) in a Long Term Evolution (LTE) system. Background technique

In 2005, 3GPP (3rd Generation Partnership Project) launched a working group on LTE research to research and design a 3.9G (improved 3G) next-generation network for the evolution of third-generation mobile communication technologies.

In order to effectively utilize mobile network resources, 3GPP proposes Multimedia Broadcast Multicast Service (MBMS), which provides a point-to-multipoint service in which data sources send data to multiple users in a mobile network. Resource sharing, improve the utilization of network resources, especially valuable air interface resources. In the LTE network, the MBMS technology studied is called E-MBMS (Evolved MBMS, improved multimedia broadcast multicast service).

In LTE FDD (Frequency Division Duplex) and LTE TDD (Time Division Duplex), on a hybrid carrier, that is, there are both multicast (multicast) services and unicast (unicast) services on the carrier, at which time the radio frames are Divided into MBSFN frame (multimedia broadcast and multicast service single frequency network radio frame, used to carry mulicast services, such as: broadcast service) and None-MBSFN frame (non-MBSFN frame, that is, unicast frame, Unicast frame, used to carry Unicast services, such as: ordinary voice services; Partial subframes in the MBSFN frame adopt MBSFN transmission mode, that is, each MBSFN subframe (non-MBSFN subframe, ie: unicast subframe;), and the None-MBSFN frame does not use MBSFN The transmission method, and the unicast transmission method. As shown in FIG. 1 , MBSFN physical resources are configured on a system broadcast message, that is, there are 32 radio frames in a 320 ms period, and each radio frame includes 10 subframes, and a total of 320 subframes, according to measurement requirements, need to specify Which subframes of the 320 subframes are MBSFN subframes.

In an LTE network, whether it is FDD or TDD, whether or not the MBMS is received, the UE (user equipment, user equipment or terminal) needs to know whether each radio frame is an MBSFN frame, and also needs to know each sub-frame in each MBSFN frame. Whether the frame adopts the MBSFN transmission mode, that is, the UE needs to know that each subframe is an MBSFN subframe or a Non-MBSFN subframe, so that the UE performs measurement and channel estimation on each subframe. Therefore, the E-UTRAN (Evolved Universal Terrestrial Radio Access Network improved universal terrestrial radio access network) needs to notify the UE of the above information of each radio frame and subframe through the system broadcast message, and the UE also needs to know each The radio frame and each subframe are MBSFN frame and MBSFN subframe for measurement and channel estimation for each subframe.

According to the presently disclosed technology, a radio frame is referred to as an MBSFN frame if it contains a number of MBSFN subframes. In order to save the overhead on the system broadcast message, on the system message block 2 (SIB2, system information block 2) of the system broadcast message of a cell, through the information unit MBSFN-SubframeConfiguration, the wireless frame and the wireless subframe are used to indicate which radio frames are used. The wireless subframe is an MBSFN subframe. At this time, one or more MBSFN subframe configurations are included on SIB2, and each MBSFN subframe configuration is called an SAP (Subframe Allocation Pattern). Each SAP configuration contains:

1) Radio frame level: The radio frame level adopts a period and an offset manner to indicate which radio frames are radio frames configured with MBSFN subframes in one time period, that is, radio frames satisfying the following formula (1) are MBSFN frames.

SFN mod radioFrameAllocationPeriod = radioFrameAllocationOffset ( 1 ) where: SFN is the frame number of the radio frame;

radioFrameAllocationPeriod is the allocation period of the radio frame; radioFrameAllocationOffset is the allocation offset of the radio frame.

2) Wireless sub-frame level: BITMAP (bit map, also called bitmap) is used to indicate which MBSFN subframe is in 10 subframes of each MBSFN frame, that is: at the sub-frame level, specified in these MBSFN frames. The allocation mode of the MBSFN subframe is the same, that is, the number of allocated MBSFN subframes in each MBSFN frame is the same as the subframe number (the 10 subframe numbers of each radio frame are: #0, #1, ..., #9 As shown in FIG. 1, the radio frames #0, #1, and #2 are all MBSFN frames, and the MBSFN subframe configurations in the three frames are the same, and all are subframe #8. Since subframes #0, #4, #5, and #9 of FDD, subframes #0, #1, #2, #5, #6 of TDD cannot be fixedly configured as MBSFN subframes, so the allocation of wireless subframes The mode of the Bitmap is represented by 6bit, namely: {BitO, Bitl, Bit2, Bit3, Bit4, Bit5}. Where FDD, BitO corresponds to subframe #1, Bit1 corresponds to subframe #2, Bit2 corresponds to subframe #3, Bit3 corresponds to subframe #6, Bit4 corresponds to subframe #7, Bit5 corresponds to subframe #8; TDD, BitO corresponds to child Frame #3, Bit1 corresponds to subframe #4, Bit2 corresponds to subframe #7, Bit3 corresponds to subframe #8, Bit4 corresponds to subframe #9, Bit5 retains no practical use. When one or some bits are set to "1", it indicates that the subframe corresponding to the Bit is configured as an MBSFN subframe. As shown in Table 1.

Table 1: Bitmap is used to indicate the allocation mode of MBSFN subframes.

Example: A certain SAP=111100, for FDD, indicates that subframes #1, #2, #3, #6 are configured as MBSFN subframes, and for TDD, subframes #3, #4, #7, #8 are configured as MBSFN frame.

In order to increase configuration flexibility, the above-mentioned subframe allocation mode can also adopt four consecutive radio frame allocation modes, and 24 bits are used to represent {BitO, Bitl, . . . Bit23} at the wireless subframe level, where Bit0 -Bit5 indicates the MBSFN subframe of the first radio frame, Bit6-Bitll indicates the MBSFN subframe of the second radio frame, and Bitl2-Bitl7 indicates the MBSFN subframe of the third radio frame, Bitl8-Bit23 indicates the MBSFN subframe of the 4th radio frame.

In the existing LTE technology, the logical channel of the MBMS is a multicast traffic channel (MTCH), and each MTCH corresponds to one MBMS session. Multiple MTCHs can be mapped to the same multicast transmission channel MCH, and one or more MCHs are mapped to the same physical channel PMCH, and a strip of PMCH is composed of a set of MBSFN subframes.

In the existing LTE technology, the concept of the MBSFN area is introduced. In an MBSFN area (multicast and multicast service single frequency network area), the MBMS is transmitted in the MBSFN mode, and different cells in the same MBSFN area use the same resources. The content and time synchronously transmit exactly the same physical signal to achieve the receiving gain of the receiving terminal (UE). The MTCH is mapped to the multicast channel (MCH) and then to the PMCH, and can be transmitted in MBSFN mode. One or more PMCHs can be configured in one MBSFN area, and one PMCH can carry one or more MCHs. Preferably, one PMCH carries one MCH.

The logical channel MCCH is a multicast control channel, and the MCCH carries configuration information of each MCH/PMCH in one or more MBSFN Areas, including MBSFN subframe configuration, modulation coding scheme, and the like for each PMCH configuration.

Because MBMS has different quality of service requirements, different service types require different scheduling periods, or MS AP occasions. This parameter specifies the period during which a service is scheduled on the radio interface. For delay-sensitive services, a relatively small scheduling period needs to be configured, and a longer scheduling period is beneficial for smoothing the change of the service rate. That is to say, in an MBSFN area, there may be configuration requirements for multiple service scheduling periods.

In the existing resource allocation method of the physical multicast channel, one MBSFN area may be configured with multiple MCHs, and each MCH corresponds to one PMCH, and each PMCH configuration configures one set of MBSFN subframe resources in one MS AP occasion. A plurality of the MBSFN subframe sets belonging to the same MBSFN area are configured as follows: Specify one or more SAPs in the SIB2 The MBSFN subframe constitutes the MBSFN subframe set, where each SAP corresponds to an entry of the MBSFN-SubframeConfiguration list in SIB2. When the PMCHs of different scheduling periods are configured, the method selects a smaller scheduling period as a resource allocation period, and allocates different subframe segments for each PMCH in the resource allocation period. As shown in FIG. 2, a group of services SG-1 with a scheduling period of 320 ms, a group of services SG-2 with a scheduling period of 640 ms, and a group of services SG-3 with a scheduling period of 640 ms. SG-1 will be mapped to PMCH1, its MSAP occasion is 320ms long, SG-2 will be carried in PMCH2, its MS AP occasion is 640ms, SG-3 is carried in PMCH3, and its MSAP occasion is 640ms. At the same time, the resource allocation period is selected to be 320 ms, and PMCH1 and PMCH2 and PMCH3 perform resource allocation in each 320 ms. Because the resource allocation period is 320ms, PMCH2 and PMCH3 are divided into two parts in a 640ms scheduling period, which are respectively located in the two resource allocation periods, and are allocated for PMCH2 or PMCH3 within two 320ms. The number of MBSFN subframes is the same.

This has the following problems:

1. Since the resources of PMCH2 and PMCH3 are equally divided into two parts, the number of MBSFN subframes occupied by PMCH2 or PMCH3 must be an even number. If the number of MBSFN subframes required by the resources of PMCH2 or PMCH3 is odd, This will result in a waste of one MBSFN subframe.

2. From the perspective of UE reception, the resources of PMCH2 and PMCH3 are divided into two parts, which means that if the UE needs to receive all the services of the PMCH, the UE will receive the transmission twice, in other words, PMCH2 and PMCH3. The continuity of resources within their scheduling cycle is not good enough. Summary of the invention

The technical problem to be solved by the present invention is to provide a resource allocation method and apparatus for a physical multicast channel, which can improve the efficiency of resource allocation and the continuity of PMCH subframe resources.

To solve the above technical problem, the present invention provides a resource allocation method for a PMCH, including: The network side device configures a resource allocation period for the PMCHs of different scheduling periods, and configures one or more groups of location information for each PMCH, where the location information indicates that the MBSFN subframe resources allocated for the PMCH are allocated in the resource. The location within the cycle.

Further, the method further includes: the network side device indicating the resource allocation period and the location information to the terminal.

Further, the network side device indicates the resource allocation period and location information of each PMCH channel of the terminal through the multicast control channel message.

Further, the resource allocation period is the number of radio frames or a time interval; each group of location information includes one of the following contents: the number of subframes, the starting subframe number and the number of subframes, the starting subframe number, and the sub-frame number. Frame number and end subframe number, start subframe number and end subframe number.

Further, the scheduling period of the PMCH is an integer multiple of a scheduling period of the service it carries or a scheduling period of the service it carries.

Further, the resource allocation period of the PMCH is an integer multiple of the PMCH scheduling period.

To solve the above technical problem, the present invention also provides a resource allocation method for a PMCH, including:

The network side device selects a maximum scheduling period from a scheduling period of multiple PMCHs, configures the maximum scheduling period as a resource allocation period, or takes an integer multiple of the maximum scheduling period as a resource allocation period; and configures a group for each PMCH. Or a plurality of sets of location information; the location information indicating a location of the MBSFN subframe resource allocated for the PMCH within its resource allocation period.

Further, the method further includes: the network side device transmitting the resource allocation period and location information to the terminal.

Further, the resource allocation period is a number of radio frames or a time interval; each group of locations The information is one of the following: the number of subframes, the starting subframe number and the number of subframes, the starting subframe number, the number of subframes, and the ending subframe number, the starting subframe number, and the ending subframe number.

To solve the above technical problem, the present invention further provides a PMCH resource allocation apparatus, including a configuration unit, where the configuration unit is configured to separately allocate resource allocation periods for a plurality of PMCHs of different scheduling periods, and configure one for each PMCH. One or more sets of location information, the location information indicating a location of the MBSFN subframe resource allocated for the PMCH within its resource allocation period.

Further, the apparatus further includes a sending unit, configured to send the resource allocation period and the location information of the configuration unit to the terminal.

Further, the resource allocation period is a number of radio frames or a time interval;

The location information is one of the following: a number of subframes, a start subframe number, a subframe number, a start subframe number, a subframe number, and an end subframe number, a start subframe number, and an end subframe number. .

To solve the above technical problem, the present invention further provides a PMCH resource allocation apparatus, including a configuration unit, where the configuration unit is configured to select a maximum scheduling period from a plurality of PMCH scheduling periods, and configure the maximum scheduling period as a resource allocation period, or taking an integer multiple of the maximum scheduling period as a resource allocation period, and configuring one or more sets of location information for each PMCH, where the location information indicates that the MBSFN subframe resource allocated for the PMCH is in its resource The location within the allocation period.

Further, the resource allocation period is a number of radio frames or a time interval; The information is one of the following: the number of subframes, the starting subframe number and the number of subframes, the starting subframe number, the number of subframes, and the ending subframe number, the starting subframe number, and the ending subframe number.

According to the method of the present invention, in the resource allocation of multiple PMCHs with different scheduling periods, the efficiency of resource allocation can be improved, unnecessary waste can be reduced, and the continuity of the subframe resources allocated by the PMCH can be improved as much as possible. It is possible to continuously allocate subframes to reduce the power consumption of the UE reading service. DRAWINGS

1 is a schematic diagram of indicating a MBSFN resource by using a radio frame level and a subframe level in the prior art;

2 is a schematic diagram of prior art multi-scheduling periodic multicast channel resource allocation;

3a and 3b are schematic views of a first embodiment of the present invention;

4a and 4b are schematic views of Embodiment 2 of the present invention;

FIG. 5 is a schematic diagram of a multicast channel resource allocation method provided by the present invention. The network side device maps one or more services of different scheduling periods to different PMCHs, and allocates MBSFN subframe resources for the PMCHs. The scheduling periods of the multiple services are different, and multiple schedulings are the same. Periodic services can be mapped to the same PMCH.

The inventive concept is as follows: The network side device configures a resource allocation period for a plurality of PMCHs of different scheduling periods, and configures one or more sets of location information for each PMCH, where the location information is used to indicate that the PMCH is allocated. The location of the MBSFN subframe resource in its resource allocation period is sent to the terminal by the resource allocation information (including the resource allocation period and location information). The network side device allocates MBSFN subframe resources to each PMCH according to a scheduling period and a resource allocation period of each PMCH.

Or, the network side device selects a maximum scheduling period from a scheduling period of multiple PMCHs, The scheduling period of the multiple PMCHs is different, and the network side device configures the maximum scheduling period as a resource allocation period, or takes an integer multiple of the maximum scheduling period as a resource allocation period, and configures one or more for each PMCH. The location information is used to indicate the location of the MBSFN subframe resource allocated for the PMCH in its resource allocation period; and the resource allocation information (including the resource allocation period and location information) is sent to the terminal.

The PMCHs having the same scheduling period sequentially allocate MBSFN subframe resources in the resource allocation period.

The network side device indicates the resource allocation of each PMCH channel of the UE through a multicast control channel message (MCCH message). The resource allocation information includes resource allocation period information and one or more sets of location information of the MBSFN subframe resource allocated for each PMCH within the resource allocation period.

The terminal receives the corresponding service on the corresponding PMCH according to the received resource allocation information. The resource allocation period may be represented by the number of radio frames or time intervals.

The location information of the MBSFN subframe resource allocated for the PMCH in the resource allocation period is one of the following contents: the number of subframes, the starting subframe number and the number of subframes, the starting subframe number, and the subframe. Number and end subframe number, start subframe number and end subframe number.

The above subframe number is the number of the MBSFN subframe in one resource allocation period.

The MBSFN subframe set is a set of MBSFN subframes used by all PMCHs in the MBSFN area where the PMCH is located.

The resource allocation period and the scheduling period may be integer multiples of each other. The scheduling period of the PMCH is an integer multiple of the scheduling period of the service carried by the service or the scheduling period of the service it carries. The resource allocation period of the PMCH is an integer multiple of the PMCH scheduling period.

The resource allocation apparatus for implementing the foregoing method includes: a configuration unit and a sending unit, where: the configuration unit is configured to separately configure a resource allocation period for a plurality of PMCHs of different scheduling periods, and each of the resource allocation periods of each PMCH PMCH allocates MBSFN subframes One or more sets of location information corresponding to the resource;

Or the configuration unit is configured to select a maximum scheduling period from a scheduling period of the multiple PMCHs, configure the maximum scheduling period as a resource allocation period, or take an integer multiple of the maximum scheduling period as a resource allocation period, and Assigning one or more sets of location information corresponding to the MBSFN subframe resource to each PMCH in the resource allocation period;

The sending unit is configured to send the resource allocation period and location information of the configuration unit to the terminal.

The resource allocation period is the number of radio frames or the time interval; the location information is one of the following contents: the number of subframes, the starting subframe number and the number of subframes, the starting subframe number, the number of subframes, and End subframe number, start subframe number, and end subframe number.

Example 1

In this embodiment, the network side device separately configures different resource allocation periods for the PMCHs of different scheduling periods.

The services SG-1, SG-2, and SG-3 are mapped to PMCH1, PMCH2, and PMCH3, respectively, where the scheduling period of PMCH1 is T1, the scheduling period of PMCH2 and PMCH3 is T2, and 2T1=T2 in Figure 3a. Then, according to the resources required by each PMCH, the network side device allocates a pattern according to the method provided by the present invention as shown in Fig. 3a.

The resource allocation of PMCH1 is allocated according to its scheduling period T1. During a time length of T2, the resource allocation of PMCH1 includes two allocations in two T1s, and the resource sizes allocated for PMCH1 in the two T1s are the same. The scheduling requirements of the services carried by PMCH1 are met (the resources in each scheduling period are the same).

The resource allocation of PMCH2 and PMCH3 is allocated according to its scheduling period T2. In a time length of T2, the MBSFN subframes available for PMCH2 and PMCH3 are MBSFN subframes shared by PMCH1, 2, and 3, and the MBSFN subframes already occupied by PMCH1 are removed. Resources, in the MBSFN subframes, PMCH2 and PMCH3 sequentially occupy these MBSFNs in sequence. Subframes, that is, first, MBSFN subframes are consecutively allocated for PMCH2 in these MBSFN subframes, and then MBSFN subframe resources are continuously allocated for PMCH3.

As shown in Fig. 3a, with the above resource allocation method, the resources of PMCH2 and PMCH3 are continuous in each scheduling period. The foregoing embodiment is described by taking the resource of the PMCH1 as an example. In other embodiments, the resources of the PMCH2 or the PMCH3 may be allocated first, and the effect is the same.

The network side device indicates the resource allocation of the foregoing PMCH by the UE by:

The network side device first indicates the MBSFN subframe set used by PMCH1, PMCH2, and PMCH3 in the MCCH message.

For PMCH1, the network side device also indicates that its resource allocation period is T1 in the MCCH message, and the subframe position information is that the starting subframe number is N1 and the length is L1. It should be noted that N1 is the number of the MBSFN subframe in the resource allocation period T1.

For PMCH2, the network side device also indicates that its resource allocation period is T2 in the MCCH message, and the subframe position information is the start subframe number N2 and the length L2. Here, N2 is the MBSFN subframe number in the resource allocation period T2.

For PMCH3, the network side device also indicates that its resource allocation period is T2 in the MCCH message, and the subframe position information is the start subframe number N3 and the length L2. Here, N3 is the MBSFN subframe number in the resource allocation period T2.

If the scheduling period of the PMCH2 is long, the resource allocation method shown in Figure 3b can be used to divide the PMCH2 into multiple parts and allocate resources separately. The indications for PMCH1 are the same as above, and the indications for PMCH2 and PMCH3 are as follows:

For PMCH2, the network side device indicates that its resource allocation period is T2 in the MCCH message, and the subframe position information is the start subframe number N2, the length L2, and the start subframe number N3, and the length L3, that is, the PMCH2 is at the length of T2. During the resource allocation period, two MBSFN subframe resources, PMCH2-1 and PMCH2-2, are allocated. Here N2 and N3 are resource allocation periods T2 The MBSFN subframe number within.

For PMCH3, the network side device indicates that its resource allocation period is T2 in the MCCH message, and the subframe position information is the start subframe number N4 and the length L4. Here, N4 is the MBSFN subframe number in the resource allocation period T2.

Example 2

The network side device configures the multiple times of the maximum scheduling period length for the PMCH of different scheduling periods as the resource allocation period. In this embodiment, the multiple is 1.

Services SG-1, SG-2, and SG-3 are mapped to PMCH1, PMCH2, and PMCH3, respectively. The scheduling period of PMCH1 is Tl, the scheduling period of PMCH2 and PMCH3 is T2, and 2T1=T2 in Figure 4a. Then, according to the resources required by each PMCH, the network side device allocates a pattern according to the method provided by the present invention as shown in Fig. 4a. The above three PMCHs use the same resource allocation period, that is, the maximum scheduling period T2 is the resource allocation period.

For PMCH1, the network side device indicates that its resource allocation period is T2 in the MCCH message, and the subframe position information is two sets of subframe resources with a starting subframe number of N1, a length of L1, a starting subframe number of N3, and a length of L3. location information. Here, N1 and N3 are the MBSFN subframe numbers in the T2 period. In this embodiment, although two sets of subframe resource location information are allocated for PMCH1, since the scheduling period of the PMCH is only T1, the allocated two segments have the same length, that is, L1=L3.

For PMCH2, the network side device indicates that its resource allocation period is T2 in the MCCH message, and the subframe position information is the start subframe number N2 and the length L2. Here, N2 is the MBSFN subframe number in the resource allocation period T2.

When the scheduling period of the PMCH2 is long, that is, the resource of the length L2 cannot be completely carried, The network side device continues to allocate resources for the PMCH2 on the remaining resources, as shown in FIG. 4b. For PMCH2, the network side device indicates that its resource allocation period is T2 in the MCCH message, and the subframe position information is the start subframe number N2, the length L2, and the start subframe number N4, and the length L4, that is, the PMCH-2 is During the resource allocation period of the T2 length, two MBSFN subframe resources, PMCH2-1 and PMCH2-2, are allocated. Here, N2 and N3 are MBSFN subframe numbers in the resource allocation period T2.

For the PMCH3, the network side device indicates that the resource allocation period is T2 in the MCCH message, and the subframe position information is the start subframe number N5 and the length L5. Here N5 is the resource allocation period

MBSFN subframe number in T2.

The above-described Embodiments 1 and 2 have the same result in resource allocation, with the difference that the manner of indicating the user terminal is different.

As can be seen from FIG. 5, the resources of PMCH1 in the T1 scheduling period are guaranteed in its scheduling period, and the resources of PMCH2 and PMCH3 continuously occupy available MBSFN subframes in T2, thus, if MBCHN required for PMCH2 and PMCH3 If the sum of the number of subframes is even, the MBSFN subframe will not be wasted. Even if the number of MBSFN subframes required by each of PMCH2 and PMCH3 is odd, and the number of subframes is even, it will not A situation in which MBSFN subframes are wasted. In general, resource efficiency has been improved compared to prior art allocation methods.

Claims

Claim

A resource allocation method for a physical multicast channel (PMCH), characterized in that: the network side device configures a resource allocation period for a plurality of PMCHs of different scheduling periods, and configures one or more groups of location information for each PMCH. And the location information indicates a location of the multimedia broadcast and the multicast service single frequency network MBSFN subframe resource allocated to the PMCH in a PMCH resource allocation period.

2. The method according to claim 1, wherein the method further comprises: the network side device indicating the resource allocation period and the location information to the terminal.

The method according to claim 2, wherein the network side device indicates a resource allocation period and location information of each PMCH of the terminal through a multicast control channel message.

The method according to claim 2 or 3, wherein the resource allocation period is a number of radio frames or a time interval;

Each set of location information includes one of the following contents: number of subframes, start subframe number and number of subframes, start subframe number, subframe number, and end subframe number, start subframe number, and end subframe number. .

The method according to claim 2, wherein the scheduling period of the PMCH is an integer multiple of a scheduling period of a service carried by the PMCH or a scheduling period of a service carried by the PMCH.

The method according to claim 2, wherein the resource allocation period of the PMCH is an integer multiple of the PMCH scheduling period.

7. A method for allocating resources of a PMCH, characterized in that:

The network side device selects a maximum scheduling period from a scheduling period of multiple PMCHs, configures the maximum scheduling period as a resource allocation period, or takes an integer multiple of the maximum scheduling period as a resource allocation period; and configures a group or matrix for each PMCH. a plurality of sets of location information; the location information indicating a location of the MBSFN subframe resource allocated for the PMCH within a PMCH resource allocation period.

8. The method of claim 7, further comprising: said network The side device sends the resource allocation period and location information to the terminal.

The method according to claim 8, wherein the network side device indicates a resource allocation period and location information of each PMCH of the terminal through a multicast control channel message.

The method according to claim 8 or 9, wherein the resource allocation period is a number of radio frames or a time interval;

Each group of location information is one of the following: the number of subframes, the starting subframe number and the number of subframes, the starting subframe number, the number of subframes, and the ending subframe number, the starting subframe number and the ending subframe number. .

The method according to claim 8, wherein the scheduling period of the PMCH is an integer multiple of a scheduling period of a service carried by the PMCH or a scheduling period of a service carried by the PMCH.

The method according to claim 8, wherein the resource allocation period of the PMCH is an integer multiple of the PMCH scheduling period.

A resource allocation apparatus for a PMCH, the apparatus includes a configuration unit, where the configuration unit is configured to separately allocate a resource allocation period for a plurality of PMCHs of different scheduling periods, and configure one or more for each PMCH. Group location information, the location information indicating a location of the MBSFN subframe resource allocated for the PMCH within a PMCH resource allocation period.

The device according to claim 13, wherein the device further comprises a sending unit, wherein the sending unit is configured to send the resource allocation period and the location information of the configuration unit to the terminal.

The device according to claim 14, wherein the resource allocation period is a number of radio frames or a time interval;

A resource allocation device for a PMCH, the device includes a configuration unit, where the configuration unit is configured to select a maximum scheduling period from a scheduling period of multiple PMCHs, and configure the maximum scheduling period as a resource allocation period. Or taking an integer multiple of the maximum scheduling period as a resource allocation period, and configuring one or more sets of location information for each PMCH, where the location information indicates that the MBSFN subframe resource allocated for the PMCH is within a PMCH resource allocation period. position.

The device according to claim 16, wherein the device further comprises a sending unit, wherein the sending unit is configured to send the resource allocation period and the location information of the configuration unit to the terminal.

The device according to claim 17, wherein the resource allocation period is a number of time frames or a time interval;