WO2015168846A1

WO2015168846A1 - User equipment, base station and information sending and receiving method

Info

Publication number: WO2015168846A1
Application number: PCT/CN2014/076797
Authority: WO
Inventors: 刘文济; 曾清海; 黄曲芳
Original assignee: 华为技术有限公司
Priority date: 2014-05-05
Filing date: 2014-05-05
Publication date: 2015-11-12
Also published as: CN105264922A; CN105264922B

Abstract

Disclosed are a user equipment, a base station and an information sending and receiving method. The information sending method comprises: sending, by a base station, multimedia broadcast multicast service (MBMS) control information to a user equipment via a multipoint control channel when a first MCCH repetition period starts during a start period of a cluster communication session, wherein the first MCCH repetition period is applicable to a cluster communication service; and sending, by the base station, the multimedia broadcast multicast service (MBMS) control information to the user equipment via the multipoint control channel when a second MCCH repetition period starts after the start period of the cluster communication session, wherein the second MCCH repetition period is applicable to a multimedia broadcast multicast service, and the first MCCH repetition period is shorter than the second MCCH repetition period. By means of the above technical solution, the multimedia broadcast multicast service (MBMS) control information can change in content at any time according to the start period of the cluster communication session, and the requirement of 300 ms end-to-end call establishment time delay of a cluster communication service can be satisfied.

Description

User equipment, base station, and information transmitting and receiving method

【技术领域】[Technical Field]

The present invention relates to the field of wireless network technologies, and in particular, to a user equipment, a base station, and a method for transmitting and receiving information.

【背景技术】【Background technique】

Multimedia Broadcast Multicast Service (MBMS, Multimedia Broadcast Multicast Service) is a service that is provided to multiple users at the same time. On the network bearer, the MBMS service is transmitted by means of broadcast or multicast, so as to realize resource sharing of the network (including the core network and the access network), and realize as many multimedia as possible with the same requirements with as few resources as possible. User's service. MBMS multicast/multicast single frequency network (MBSFN, Multicast Broadcast Single Frequency Network) requires simultaneous transmission of identical waveforms from multiple cells, the transmission mode of which requires all cells in a certain area to transmit the same data packet using the same modulation and coding mode at the same time and frequency. All cells in the same MBSFN mode form an MBSFN Area (MBSFN area).

The transmission of MBSFN is performed on the MBSFN subframe. Belong to the same

The MBSFN subframe positions of the respective cells of one MBSFN area are the same. In this way, each cell can cooperate to perform MBSFN transmission. The configuration information of the MBSFN subframe is included in the system information and broadcast to the UE (User Equipment). However, the configuration information of these subframes is mixed with other subframes of non-unicast use (such as positioning, relay, etc.), which are collectively referred to as non-unicast subframe configuration information. As for the specific non-unicast sub-frames, which are used for MBMS, are through MCCH (Multicast). Control Channel, multi-point control channel) broadcast. The location information of the MCCH is also included in the system information.

The MCCH is a logical channel that transmits MBMS control information on the air interface. The content transmitted by the MCCH includes a list of MBMS services being transmitted in the MBSFN area (session List) and information such as air interface resources reserved for MBMS services. The MCCH is also transmitted using the MBSFN mode. In LTE (Long Term Evolution, Long Term Evolution), MCCH messages are repeated (RP, Repetition) Period) Periodic transmission, several repetition periods constitute a modification period (MP, Modification) Period), that is, MP is an integer multiple of RP. When the information of the MCCH changes, the base station, for example, is an eNB (evolved) Node, evolved base station) can only modify the period boundary (Modification Period) At the boundary), the updated MCCH message is sent. When a new MBMS session starts (session Start), the base station scrambles the PDCCH through the MBMS Radio Network Temporary Identity (M-RNTI) (Physical Downlink Control) Channel, physical downlink control channel) issues MCCH change notification. MCCH change notification continues for one MCCH MP. The UE learns whether there is MCCH content update by detecting the M-RNTI scrambled downlink physical control channel PDCCH. On the next MCCH At the beginning of the MP, the new MCCH content is replaced by the old MCCH content. The values of MCCH MP and RP are as follows:

MCCH RP: 320ms, 640ms, 1280ms, 2560ms

MCCH MP: 5120ms, 10240ms

On the other hand, according to 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) provides that the MCCH transmission and change notification mechanism is as shown in Figure 1. Figure 1 shows the MCCH transmission and change notification mechanism of the multimedia broadcast multicast service. For the UE that is receiving the MBMS service, They can be on every MCCH The MP initially reads the MBMS control information of the multimedia broadcast multicast service, and the channel contains MBMS session information that is being communicated or is about to be communicated to know that the new MBMS session starts.

When receiving a specific MBMS service, the UE first knows which MCH the service is mapped to by the multimedia broadcast multicast service MBMS control information MCCH (Multicast). Channel), and the MBSFN subframe occupied by this MCH transport channel, can limit the subframes that need to be received within these subframes.

Recently, 3GPP is researching eMBMS (Enhance Multimedia Broadcast) Multicast Service, Enhanced Multimedia Broadcast/Multicast Service) Technology Hosts Cluster Communication Services (GC, group Communication). In the field of public safety, trunking communication has a wide range of uses. The basic way is group call, that is, within the group, members press PTT (Push To Talk) After you press the button, you can start speaking. The members of the group can hear the member's voice. Due to its use, the cluster communication has high requirements for the call of the group call and the delay of the service data transmission. Specifically, the call setup delay does not exceed 300 ms, and the end-to-end service data transmission delay does not exceed 150 ms. At present, the cluster system has not been implemented on the LTE system. In order to provide a higher data rate, the 3GPP has begun to study how to support the group call service on the LTE system. The trunk communication transmission media (media) that LTE needs to support includes voice calls, interactive video, video streams, and instant messages. The session type voice call and interactive video have high delay requirements, and the packet data gateway (PDN-GWPacket) The time delay between the Data Network Gateway and the UE is within 100 ms, and the delay between the eNB and the UE is required to be around 50 ms to ensure QoS.

On the other hand, currently MBMS The delay established by the bearer does not meet the end-to-end 300 ms delay of the GC trunking service. When there is a new business start (session start) , the session included in the MBMS control information of the multimedia broadcast multicast service transmitted on the MCCH The list is about to change. The change of MBMS control information of the multimedia broadcast multicast service needs to be notified by one MCCH MP in advance, and then in the next MCCH. The MP changes the content of the MBMS control information of the multimedia broadcast multicast service at the beginning. Current standard MCCH The length of the MP is a minimum of 5.12 s. That is to say, the delay of establishing the MBMS bearer takes more than 5.12 s in the air interface. It is far greater than the end-to-end 300ms call setup delay of the trunking service.

【发明内容】 [Summary of the Invention]

In view of this, the embodiments of the present invention provide a user equipment, a base station, and a method for transmitting and receiving information to solve the above technical problem.

The first aspect provides an information sending method, including: a base station notifying a user equipment of a first MCCH repetition period and a second MCCH repetition period; and the base station using the first MCCH repetition period in a cluster communication session start period on the multi-point control channel MCCH to the user The device broadcasts MBMS control information of the multimedia broadcast multicast service, where the first MCCH repetition period is applicable to the trunking communication service; the base station broadcasts the multimedia broadcast to the user equipment on the multipoint control channel using the second MCCH repetition period in the beginning of the non-cluster communication session The multicast service MBMS control information, where the second MCCH repetition period is applicable to the multimedia broadcast multicast service, and the first MCCH repetition period is smaller than the second MCCH repetition period.

In a first possible implementation manner of the first aspect, the first MCCH repetition period is consistent with a period of the dynamic scheduling information MSI of the multicast channel where the media broadcast multicast service control information is located.

In a second possible implementation manner of the first aspect, the cluster communication session start period is an MCCH of N multimedia broadcast multicast services. Modify the period, where N is an integer or fraction.

In a third possible implementation manner of the first aspect, the step of the base station notifying the user equipment of the first MCCH repetition period and the second MCCH repetition period includes: the base station separately notifying the user equipment of the first MCCH repetition period and the second MCCH repetition period .

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the base station notifies the user equipment of the first MCCH repetition period by using RRC dedicated signaling.

The second aspect provides a method for receiving information, including: acquiring, by a user equipment, a first MCCH repetition period and a second MCCH repetition period from a base station; the user equipment calculates, according to the first MCCH repetition period, a subframe position where the multi-point control channel MCCH is located and reads Taking the multi-point control channel MCCH, the content of the multi-point control channel MCCH includes the MBMS control information of the multimedia broadcast multicast service broadcasted by the base station, where the first MCCH repetition period is used for the trunking communication service, and the first MCCH repetition period is smaller than the second MCCH repetition period. The second MCCH repetition period is applicable to the multimedia broadcast multicast service.

In a first possible implementation manner of the second aspect, before the user equipment acquires the first MCCH repetition period from the base station, the method further includes: the user equipment is registered in the trunking communication application server.

In a second possible implementation manner of the second aspect, the first MCCH repetition period is consistent with the period of the dynamic scheduling information MSI of the multicast channel where the MBMS control information of the multimedia broadcast multicast service is located.

The third aspect provides a base station, including: a sending module, configured to notify a user equipment of a first MCCH repetition period and a second MCCH repetition period; and a sending module, configured to use the first MCCH repetition period in a cluster communication session start period The multi-point control channel MCCH broadcasts multimedia broadcast multicast service MBMS control information to the user equipment, where the first MCCH repetition period is applicable to the trunking communication service, and the sending module is further configured to use the second MCCH repetition in the beginning of the non-cluster communication session. The medium broadcasts the multimedia broadcast multicast service MBMS control information to the user equipment, where the second MCCH repetition period is applicable to the multimedia broadcast multicast service, and the first MCCH repetition period is smaller than the second MCCH repetition period.

In a first possible implementation manner of the third aspect, the first MCCH repetition period is consistent with the period of the dynamic scheduling information MSI of the multicast channel where the MBMS control information of the multimedia broadcast multicast service is located.

In a second possible implementation manner of the third aspect, the cluster communication session start period is an MCCH of N multimedia broadcast multicast services. Modify the period, where N is an integer or fraction.

In a third possible implementation manner of the third aspect, the sending module notifies the user equipment of the first MCCH repetition period and the second MCCH repetition period.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner, the sending module notifies the user equipment of the first MCCH repetition period by using RRC dedicated signaling.

A fourth aspect provides a user equipment, including: a receiving module, configured to acquire a first MCCH repetition period and a second MCCH repetition period from a base station; and a receiving module, configured to calculate, according to the first MCCH repetition period, a multi-point control channel MCCH The subframe position is read and the multi-point control channel MCCH is read. The content of the multi-point control channel MCCH includes the multimedia broadcast multicast service MBMS control information broadcast by the base station, where the first MCCH repetition period is used for the trunking communication service, and the first MCCH repetition period The second MCCH repetition period is smaller than the second MCCH repetition period, and the second MCCH repetition period is applicable to the multimedia broadcast multicast service.

In a first possible implementation manner of the fourth aspect, the user equipment further includes a registration module, where the registration module is configured to register in the cluster communication application server.

In a second possible implementation manner of the fourth aspect, the first MCCH repetition period is consistent with a period of dynamic scheduling information of the multicast channel where the MBMS control information of the multimedia broadcast multicast service is located.

The fifth aspect provides a base station, including a transceiver module, a processor, a memory, and a bus, wherein the transceiver module, the processor, and the memory are respectively connected to the bus, wherein: the transceiver module is configured to notify the user equipment of the first MCCH repetition period and a second MCCH repetition period; the memory stores a program, the program is configured to control the transceiver module to broadcast the multimedia broadcast multicast service MBMS control information to the user equipment on the multi-point control channel MCCH by using the first MCCH repetition period in the beginning of the cluster communication session, The first MCCH repetition period is applicable to the trunking communication service; the program is further configured to control the transceiver module to broadcast the MBMS control information of the multimedia broadcast multicast service to the user equipment by using the second MCCH repetition period in the beginning of the non-cluster communication session, where The second MCCH repetition period is applicable to the multimedia broadcast multicast service, and the first MCCH repetition period is smaller than the second MCCH repetition period; The processor is used to run the program.

In a first possible implementation manner of the fifth aspect, the first MCCH repetition period is consistent with the period of the dynamic scheduling information MSI of the multicast channel where the MBMS control information of the multimedia broadcast multicast service is located.

In a second possible implementation manner of the fifth aspect, the cluster communication session start period is the MCCH of the N multimedia broadcast multicast services. Modify the period, where N is an integer or fraction.

In a third possible implementation manner of the fifth aspect, the transceiver module separately notifies the user equipment of the first MCCH repetition period and the second MCCH repetition period.

With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner, the transceiver module notifies the user equipment of the first MCCH repetition period by using RRC dedicated signaling.

A sixth aspect provides a user equipment, including a transceiver module, a processor, a memory, and a bus, wherein the transceiver module, the processor, and the memory are respectively connected to the bus, wherein: the memory stores a program, and the program is used to control the transceiver module from the base station. Obtaining a first MCCH repetition period and a second MCCH repetition period; the program is further configured to control the transceiver module to calculate a subframe position where the multi-point control channel MCCH is located according to the first MCCH repetition period and read the multi-point control channel MCCH, and multi-point control The content of the channel MCCH includes MBMS control information of the multimedia broadcast multicast service broadcasted by the base station, where the first MCCH repetition period is used for the trunking communication service, the first MCCH repetition period is smaller than the second MCCH repetition period, and the second MCCH repetition period is applicable to the multimedia broadcast. Multicast service; processor for running programs.

In a first possible implementation manner of the sixth aspect, the program is further configured to control the transceiver module to register in the trunking communication application server.

In a second possible implementation manner of the sixth aspect, the first MCCH repetition period is consistent with the period of the dynamic scheduling information MSI of the multicast channel where the MBMS control information of the multimedia broadcast multicast service is located.

With the above technical solution, the embodiment of the present invention provides a user equipment, a base station, and an information sending and receiving method, where the base station sends the MBMS control information of the multimedia broadcast multicast service to the beginning of the first MCCH repetition period in the beginning of the trunking communication session. And transmitting, by the user equipment, the multimedia broadcast multicast service MBMS control information to the user equipment at the beginning of the second MCCH repetition period after the start of the cluster communication session, and the first MCCH repetition period is smaller than the second MCCH repetition period, in the embodiment of the present invention. The MBMS control information of the multimedia broadcast multicast service used for the trunking communication service is relatively densely transmitted during the beginning of the trunking communication session, and the MBMS control information update mechanism of the multimedia broadcast multicast service is not affected by the MCCH. The limitation of the MP is that the MBMS control information of the multimedia broadcast multicast service can change the content according to the start time of the cluster communication session at any time, thereby saving the 5.12 s time spent on the air interface establishment delay of the MBMS bearer establishment, so that the MBMS control information can be saved. The end-to-end 300ms call setup delay requirement for trunking communication services.

【附图说明】 [Description of the Drawings]

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

FIG. 1 shows an MCCH transmission and change notification mechanism of a multimedia broadcast multicast service;

2 is a system architecture diagram of an embodiment of the present invention;

3 is a schematic flowchart of a first embodiment of an information sending method according to an embodiment of the present invention;

4 is a schematic structural diagram of a data frame provided by an alternative embodiment of the present invention;

FIG. 5 is a schematic flowchart of a first embodiment of a method for receiving MBMS control information of a multimedia broadcast multicast service according to an embodiment of the present disclosure;

6 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.

【具体实施方式】【detailed description】

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Please refer to FIG. 2. FIG. 2 is a system architecture diagram of an embodiment of the present invention. The system architecture includes a user equipment 20 and a base station 10, which is covered by a cellular network provided by the base station 10, wherein the base station 10 can be, for example, an eNB (evolved) Node B, evolved base station), or RNC (Radio Node Controller, wireless node controller), can also be one of the eNB and RNC and the unified wireless controller (SRC, Single Radio) Controller) combination. For example, the network format of the user equipment 20 may be an LTE (Long Term Evolution) system.

Based on the scenario shown in FIG. 2, FIG. 3 is a schematic flowchart of a first embodiment of an information sending method according to an embodiment of the present invention. As shown in FIG. 3, the information sending method in the embodiment of the present invention includes the following steps:

Step 301: The base station 10 notifies the user equipment 20 of the first MCCH repetition period and the second MCCH repetition period.

Step 302: The base station 10 broadcasts the multimedia broadcast multicast service MBMS control information to the user equipment 20 on the multi-point control channel MCCH in the cluster communication session start period using the first MCCH repetition period. The first MCCH repetition period is applicable to the trunking communication service.

Step 303: The base station 10 broadcasts the multimedia broadcast multicast service MBMS control information to the user equipment 20 on the multi-point control channel using the second MCCH repetition period in the start of the non-cluster communication session, where the second MCCH repetition period is applicable to the multimedia broadcast multicast service. And the first MCCH repetition period is less than the second MCCH repetition period.

Optionally, the first MCCH repetition period and the dynamic scheduling information of the multicast channel where the MBMS control information of the multimedia broadcast multicast service is located is MSI (MCH) The scheduling information) has the same period.

Specifically, the multi-point control channel MCCH of the broadcast multimedia broadcast multicast service MBMS control information and the multi-point traffic channel MTCH of the broadcast multimedia broadcast multicast service data are both logical channels. The MCCH and MTCH can be mapped to the transport channel MCH and can be mapped to the same MCH. In addition, multiple MTCHs can also be mapped to the same MCH.

The MCH is a transport channel, and one MBSFN area may contain one or more MCHs, but each MCH only contains data belonging to the same MBSFN area. The MCH coverage of the same MBSFN area is the same. Which MBSFN subframes are included in the MCH are indicated by the Multimedia Broadcast Multicast Service MBMS Control Information.

Because the duration of each multimedia broadcast multicast service can be different, it is necessary to dynamically manage service multiplexing, that is, add services in service multiplexing, or delete services. Dynamic management is indicated by the dynamic scheduling information MSI. The MSI indicates which services are multiplexed to the same MCH for a period of time. So each MCH has its own MSI. Because the multimedia broadcast multicast service data is carried in the MTCH, the MSI actually indicates which MBSFN subframes are occupied by different MTCHs multiplexed to the same MCH.

The MSI is valid for a period of time, which is the MSI cycle. At the MAC medium access control layer, the MSI period is called the MCH scheduling period (MSP, mch-Scheduling). Period), an MSI information indicates the subframe allocation of a group of MTCHs multiplexed into the MCH within one MSP.

The value range of the MCH scheduling period is:

mch-SchedulingPeriod-r9 ENUMERATED {rf8, rf16, rf32, Rf64, rf128, rf256, rf512, rf1024},

For the MCH including the MCCH, the MSI dynamic scheduling information has a higher scheduling priority than the MCCH, and may be placed in the PDU packet data unit (packet if necessary). The start of the data unit), but the MSI does not contain scheduling information for the MCCH (even if the MCH contains MCCH).

Generally, the MCCH repetition period applicable to multimedia broadcast multicast services is configured as MSP. An integer multiple of the MCH scheduling period (hereinafter referred to as the MSP period). That is to say, the MSI will be sent more densely than the MCCH.

Referring to FIG. 4, FIG. 4 is a schematic structural diagram of a data frame provided by an optional embodiment of the present invention. As shown in FIG. 4, the first MCCH is assumed. The MP is the start time of the trunking communication session. In the beginning of the trunking communication session, the information broadcasted on the MCCH is the multimedia broadcast multicast service MBMS control information, and the multimedia broadcast multicast service MBMS control information corresponds to the first time in the cluster communication session start period. An MCCH repetition period (corresponding to the first MCCH in Figure 4) The vertical arrow in the MP) and the MSI information corresponding to the MSI information (corresponding to the diagonal arrow in the first MCCH MP in Fig. 4) are the same. The MSI period is 1 subframe, so the first MCCH In the MP, the multimedia broadcast multicast service MBMS control information is broadcasted at the beginning of each MSI period.

At the beginning of the non-cluster communication session, ie at the second MCCH In the MP, the content broadcasted on the MCCH is the MBMS control information of the multimedia broadcast multicast service, and the period corresponding to the MBMS control information of the multimedia broadcast multicast service (corresponding to the second MCCH in FIG. 4) MSI period corresponding to the MSI information in the vertical arrow of the MP (corresponding to the second MCCH in Figure 4) The slash arrow in the MP is different. The MBMS control information corresponding period of the multimedia broadcast multicast service is consistent with the second MCCH repetition period, where the second MCCH repetition period is 4 consecutive subframes, and the second MCCH is in the second MCCH. In the MP, the multimedia broadcast multicast service MBMS control information is sent at the beginning of each second MCCH repetition period.

Therefore, in the alternative embodiment shown in FIG. 4, the base station 10 broadcasts the multimedia broadcast multicast service MBMS control information in the MCCH during the cluster communication session start period, specifically, transmits the multimedia broadcast in the MSI period as the first MCCH repetition period. Multicast service MBMS control information. The base station 10 broadcasts the multimedia broadcast multicast service MBMS control information on the MCCH during the start of the non-cluster communication session, and broadcasts the multimedia broadcast multicast service MBMS control information in the second MCCH repetition period applicable to the multimedia broadcast multicast service.

Since the MSI period is shorter than the second MCCH repetition period applicable to the multimedia broadcast multicast service, the base station 10 broadcasts the multimedia broadcast multicast service MBMS control information on the MCCH during the cluster communication session start period and the non-cluster communication session. In the initial period, the base station 10 broadcasts the MBMS control information of the multimedia broadcast multicast service on the MCCH to be more dense, so that the requirements of the cluster communication application service can be satisfied.

In the foregoing optional embodiment, since the MSI period is shorter than the second MCCH repetition period, the MSI period is taken as the first MCCH repetition period, but it is noted that the embodiment of the present invention is not limited to repeating the first MCCH. The period is set to the MSI period. For example, in the embodiment shown in FIG. 4, the first MCCH repetition period may also be set to 2 consecutive subframes, because 2 consecutive subframes are 4 consecutive sub-frames than the second MCCH repetition period. The frame is shorter, so the same technical effect can be obtained.

Optionally, the start period of the trunking communication session may specifically be the MCCH of the N multimedia broadcast multicast services. Modify the period, where N is an integer or fraction.

Optionally, the second MCCH repetition period includes 320 ms, 640 ms, 1280 ms, and 2560 ms.

Optionally, the base station 10 notifies the user equipment 20 of the first MCCH repetition period and the second MCCH repetition period, respectively.

Optionally, the base station 10 notifies the user equipment 20 of the first MCCH repetition period by using RRC dedicated signaling. The base station 10 may transmit system information including the second MCCH repetition period to the user equipment 20 to notify the user equipment 20 of the second MCCH repetition period. In this embodiment, the base station broadcasts the multimedia broadcast multicast service MBMS control information to the user equipment in the first MCCH repetition period in the cluster communication session start period, and transmits the multimedia broadcast in the second MCCH repetition period in the non-cluster communication session start period. The multicast service MBMS control information is sent to the user equipment, and the first MCCH repetition period is smaller than the second MCCH repetition period. In the embodiment of the present invention, the MBMS control of the multimedia broadcast multicast service for the trunking communication service is started at the beginning of the trunking communication session. Information is relatively densely broadcast, because the MBMS control information update mechanism of this multimedia broadcast multicast service is not subject to MCCH The limitation of the MP, so the content on the MCCH can be changed according to the start time of the cluster communication session at any time, thereby saving the 5.12 s time spent on the air interface by the delay of the MBMS bearer establishment, so that the cluster communication service end-to-end 300 ms can be satisfied. Call setup delay requirements.

Based on the scenario shown in FIG. 2, FIG. 5 is a schematic flowchart of a first embodiment of a method for receiving MBMS control information of a multimedia broadcast multicast service according to an embodiment of the present invention. As shown in FIG. 5, the method for receiving MBMS control information of a multimedia broadcast multicast service according to an embodiment of the present invention includes the following steps:

Step 401: The user equipment 20 acquires a first MCCH repetition period and a second MCCH repetition period from the base station 10.

Step 402: The user equipment 20 calculates the subframe position where the multi-point control channel MCCH is located according to the first MCCH repetition period and reads the multi-point control channel MCCH. The content of the multi-point control channel MCCH includes the multimedia broadcast multicast service MBMS broadcast by the base station 10. The control information and the multimedia broadcast multicast service MBMS control information, where the first MCCH repetition period is used for the trunking communication service, the first MCCH repetition period is smaller than the second MCCH repetition period, and the second MCCH repetition period is applicable to the multimedia broadcast multicast service.

The method for receiving the MBMS control information of the multimedia broadcast multicast service according to the embodiment of the present invention includes the following steps:

The user device 20 registers in the trunking communication application server.

Optionally, the first MCCH repetition period is consistent with a period of dynamic scheduling information of the multicast channel where the MBMS control information of the multimedia broadcast multicast service is located.

Specifically, reference may be made to FIG. 5, and it is assumed that the user equipment 20 acquires the first MCCH repetition period as the MSI period in step 401. Thereafter, the user equipment 20 continuously reads the base station 10 from the MCCH at the beginning of the MSI period. Multimedia broadcast multicast service MBMS control information or multimedia broadcast multicast service MBMS control information.

As mentioned above, the first MCCH The MP is a cluster communication session start period. At this time, the base station 10 transmits the MBMS control information of the multimedia broadcast multicast service on the MCCH, and the MBMS control information of the multimedia broadcast multicast service is transmitted at the beginning of each MSI period. Since the user equipment 20 continuously reads information from the MCCH at the beginning of the MSI period, it is at the first MCCH. In the MP, the user equipment 20 can read the MBMS control information of the multimedia broadcast multicast service sent by the base station 10.

And, in the second MCCH In the MP, the beginning of the trunking communication session ends, at this time in the beginning of the non-cluster communication session, the base station broadcasts the MBMS control information of the multimedia broadcast multicast service on the MCCH, and the MBMS control information of the multimedia broadcast multicast service is in every second. Broadcast at the beginning of the MCCH repetition period. Since the user equipment will continuously read content from the MCCH at the beginning of each MSI cycle, the second MCCH Within the MP, the user equipment 20 can be in the second MCCH. The first subframe of the MP reads the MBMS control information of the multimedia broadcast multicast service, and the MBMS control information of the multimedia broadcast multicast service is not read in the second to fourth subframes (because the base station 10 is not sent), The five subframes read the MBMS control information of the multimedia broadcast multicast service, and the MBMS control information of the multimedia broadcast multicast service is not read in other subframes.

In this alternative embodiment, since the user equipment 20 reads information from the MCCH with the MSI period as the first MCCH repetition period, and the MSI period is shorter as the first MCCH repetition period than the second MCCH repetition period, the user equipment 20 may The multimedia broadcast multicast service MBMS control information and the multimedia broadcast multicast service MBMS control information are read from the MCCH.

In this embodiment, the user equipment 20, in conjunction with the base station 10 shown in FIG. 3, reads the multimedia broadcast multicast service MBMS control information or the multimedia broadcast multicast service MBMS control information from the MCCH in a relatively dense second MCCH repetition period. Since the content update mechanism on this MCCH is not affected by MCCH The limitation of the MP is that the MBMS control information of the multimedia broadcast multicast service can change the content according to the start time of the cluster communication session at any time, thereby saving the 5.12 s time spent on the air interface establishment delay of the MBMS bearer establishment, so that the MBMS control information can be saved. The end-to-end 300ms call setup delay requirement for trunking communication services.

With reference to the method embodiment shown in FIG. 2, FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 6, the base station 10 includes:

The sending module 101 is configured to notify the user equipment 20 of the first MCCH repetition period and the second MCCH repetition period;

The sending module 101 is further configured to broadcast the multimedia broadcast multicast service MBMS control information to the user equipment 20 on the multi-point control channel MCCH by using the first MCCH repetition period in a cluster communication session start period, where the first MCCH repetition period is applicable to the Cluster communication service;

The sending module 101 is further configured to broadcast the multimedia broadcast multicast service MBMS control information MBMS to the user equipment 20 by using the second MCCH repetition period in the start of the non-cluster communication session, where the second MCCH repetition period is applicable to the multimedia broadcast multicast service, and The first MCCH repetition period is less than the second MCCH repetition period.

Optionally, the cluster communication session start period is an MCCH modification period of N multimedia broadcast multicast services, where N is an integer or a fraction.

Optionally, the sending module 101 notifies the user equipment 20 of the first MCCH repetition period and the second MCCH repetition period, respectively.

Optionally, the sending module 101 notifies the user equipment 20 of the first MCCH repetition period by using RRC dedicated signaling.

In this embodiment, the base station sends the multimedia broadcast multicast service MBMS control information to the user equipment at the beginning of the first MCCH repetition period in the cluster communication session start period, and starts at the second MCCH repetition period in the beginning of the non-cluster communication session. Transmitting the multimedia broadcast multicast service MBMS control information to the user equipment, and the first MCCH repetition period is less than the second MCCH repetition period. In the embodiment of the present invention, the multimedia broadcast group for the trunking communication service is started at the beginning of the cluster communication session. The MBMS control information of the broadcast service is relatively densely transmitted, because the MBMS control information update mechanism of the multimedia broadcast multicast service is not affected by the MCCH. The limitation of the MP is that the MBMS control information of the multimedia broadcast multicast service can change the content according to the start time of the cluster communication session at any time, thereby saving the 5.12 s time spent on the air interface establishment delay of the MBMS bearer establishment, so that the MBMS control information can be saved. The end-to-end 300ms call setup delay requirement for trunking communication services.

With reference to the method embodiment shown in FIG. 3, FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 7, the user equipment 20 includes:

The receiving module 201 is configured to acquire, from the base station 10, a first MCCH repetition period and a second MCCH repetition period;

The receiving module 202 is further configured to calculate a subframe position where the multi-point control channel MCCH is located according to the first MCCH repetition period and read the multi-point control channel MCCH, where the content of the multi-point control channel MCCH includes the multimedia broadcast multicast service MBMS broadcast by the base station. The control information and the multimedia broadcast multicast service MBMS control information, where the first MCCH repetition period is used for the trunking communication service, the first MCCH repetition period is smaller than the second MCCH repetition period, and the second MCCH repetition period is applicable to the multimedia broadcast multicast service.

Optionally, the user equipment 20 further includes a registration module 202 for registering in the trunking communication application server.

In this embodiment, the user equipment 20 cooperates with the base station 10 shown in FIG. 6 to read the multimedia broadcast multicast service MBMS control information or the multimedia broadcast multicast service MBMS control information from the MCCH in a relatively dense second MCCH repetition period. Because the MBMS control information update mechanism of the multimedia broadcast multicast service is not affected by the MCCH The limitation of the MP is that the MBMS control information of the multimedia broadcast multicast service can change the content according to the start time of the cluster communication session at any time, thereby saving the 5.12 s time spent on the air interface establishment delay of the MBMS bearer establishment, so that the MBMS control information can be saved. The end-to-end 300ms call setup delay requirement for trunking communication services.

With reference to the method embodiment shown in FIG. 2, FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 8, the base station includes a transceiver module 101, a processor 102, a memory 103, and a bus 104. The module 101, the processor 102, and the memory 103 are respectively connected to the bus 104, wherein:

The transceiver module 101 is configured to notify the user equipment 20 of the first MCCH repetition period and the second MCCH repetition period;

The memory 103 stores a program for controlling the transceiver module 101 to broadcast the multimedia broadcast multicast service MBMS control information to the user equipment 20 on the multi-point control channel MCCH using the first MCCH repetition period in the cluster communication session start period, where the first The MCCH repetition period is applicable to the cluster communication service for broadcasting the multimedia broadcast multicast service MBMS control information to the user equipment in the multi-point control channel MCCH using the first MCCH repetition period in the cluster communication session start period, wherein the first MCCH repetition period is applicable to Used for trunking communication services;

The program is further configured to control the transceiver module 101 to broadcast the multimedia broadcast multicast service MBMS control information MBMS to the user equipment 20 using the second MCCH repetition period during the start of the non-cluster communication session, where the second MCCH repetition period is applicable to the multimedia broadcast multicast service. And the first MCCH repetition period is less than the second MCCH repetition period;

The processor 102 is used to run a program.

Optionally, the transceiver module 101 notifies the user equipment 20 of the first MCCH repetition period and the second MCCH repetition period, respectively.

Optionally, the transceiver module 101 notifies the user equipment 20 of the first MCCH repetition period by using RRC dedicated signaling.

With reference to the method embodiment shown in FIG. 3, FIG. 9 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 9, the user equipment includes a transceiver module 201, a processor 202, a memory 203, and a bus 204. The transceiver module 201, the processor 202, and the memory 203 are respectively connected to the bus 204, wherein:

The memory 203 stores a program for controlling the transceiver module 201 to acquire the first MCCH repetition period and the second MCCH repetition period from the base station 10;

The program is further configured to control the transceiver module 201 to calculate the subframe position where the multi-point control channel MCCH is located according to the first MCCH repetition period and read the multi-point control channel MCCH, and the content of the multi-point control channel MCCH includes the multimedia broadcast multicast broadcast by the base station. The MBMS control information and the MBMS control information of the multimedia broadcast multicast service, where the first MCCH repetition period is used for the trunking communication service, the first MCCH repetition period is smaller than the second MCCH repetition period, and the second MCCH repetition period is applicable to the multimedia broadcast multicast service. ;

The processor 202 is configured to run a program.

Optionally, the program is further configured to control the transceiver module 201 to register in the trunking communication application server.

In this embodiment, the user equipment 10, in conjunction with the base station 20 shown in FIG. 8, reads the multimedia broadcast multicast service MBMS control information or the multimedia broadcast multicast service MBMS control information from the MCCH in a relatively dense second MCCH repetition period. Because the MBMS control information update mechanism of the multimedia broadcast multicast service is not affected by the MCCH The limitation of the MP is that the MBMS control information of the multimedia broadcast multicast service can change the content according to the start time of the cluster communication session at any time, thereby saving the 5.12 s time spent on the air interface establishment delay of the MBMS bearer establishment, so that the MBMS control information can be saved. The end-to-end 300ms call setup delay requirement for trunking communication services.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformation of the present invention and the contents of the drawings may be directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims

A method for transmitting information, comprising:

The base station notifies the user equipment of the first MCCH repetition period and the second MCCH repetition period;

The base station broadcasts the multimedia broadcast multicast service MBMS control information to the user equipment in the multi-point control channel MCCH using the first MCCH repetition period in a cluster communication session start period, where the first MCCH repetition period is applicable to the cluster communication service. ;

The base station broadcasts multimedia broadcast multicast service MBMS control information to the user equipment on the multipoint control channel during a non-cluster communication session start period using a second MCCH repetition period, where the second MCCH repetition period is applicable to multimedia broadcast multicast The service, and the first MCCH repetition period is less than the second MCCH repetition period.
The method according to claim 1, wherein the first MCCH repetition period is consistent with a period of dynamic scheduling information MSI of a multicast channel in which the media broadcast multicast service control information is located.
The method according to claim 1, wherein said cluster communication session start period is an MCCH of N said multimedia broadcast multicast services Modify the period, where N is an integer or fraction.
The method according to claim 1, wherein the step of the base station notifying the user equipment of the first MCCH repetition period and the second MCCH repetition period comprises:

The base station separately notifies the user equipment of the first MCCH repetition period and the second MCCH repetition period.
The method according to claim 4, wherein the base station notifies the user equipment of the first MCCH repetition period by using RRC dedicated signaling.
An information receiving method, comprising:

The user equipment acquires a first MCCH repetition period and a second MCCH repetition period from the base station;

The user equipment calculates a subframe position where the multi-point control channel MCCH is located according to the first MCCH repetition period and reads a multi-point control channel MCCH, where the content of the multi-point control channel MCCH includes a multimedia broadcast group broadcast by the base station Broadcasting service MBMS control information, wherein the first MCCH repetition period is used for trunking communication service, the first MCCH repetition period is smaller than the second MCCH repetition period, and the second MCCH repetition period is applicable to multimedia broadcast multicast service .
The method according to claim 6, wherein before the acquiring, by the user equipment, the first MCCH repetition period from the base station, the method further includes:

The user equipment registers in a trunking communication application server.
The method according to claim 6, wherein the first MCCH repetition period is consistent with a period of dynamic scheduling information MSI of a multicast channel in which the MBMS control information of the multimedia broadcast multicast service is located.
A base station, comprising:

a sending module, configured to notify the user equipment of the first MCCH repetition period and the second MCCH repetition period;

The sending module is further configured to broadcast the multimedia broadcast multicast service MBMS control information to the user equipment in the multi-point control channel MCCH by using a first MCCH repetition period in a cluster communication session start period, where the first MCCH repetition period Suitable for use in trunking communication services;

The sending module is further configured to broadcast the multimedia broadcast multicast service MBMS control information to the user equipment by using a second MCCH repetition period in a start period of the non-cluster communication session, where the second MCCH repetition period is applicable to the multimedia broadcast multicast The service, and the first MCCH repetition period is less than the second MCCH repetition period.
The base station according to claim 9, wherein the first MCCH repetition period is consistent with a period of dynamic scheduling information MSI of a multicast channel in which the MBMS control information of the multimedia broadcast multicast service is located.
The base station according to claim 9, wherein the cluster communication session start period is an MCCH of N multimedia broadcast multicast services Modify the period, where N is an integer or fraction.
The base station according to claim 9, wherein The sending module separately notifies the user equipment of the first MCCH repetition period and the second MCCH repetition period.
The base station according to claim 12, wherein the sending module notifies the user equipment of the first MCCH repetition period by using RRC dedicated signaling.
A user equipment, comprising:

a receiving module, configured to acquire a first MCCH repetition period and a second MCCH repetition period from the base station;

The receiving module is further configured to calculate, according to the first MCCH repetition period, a subframe position where the multi-point control channel MCCH is located and read a multi-point control channel MCCH, where the content of the multi-point control channel MCCH includes the base station broadcast Multimedia broadcast multicast service MBMS control information, wherein the first MCCH repetition period is used for trunking communication services, the first MCCH repetition period is smaller than the second MCCH repetition period, and the second MCCH repetition period is applicable to multimedia Broadcast multicast service.
The user equipment according to claim 14, wherein the user equipment further comprises a registration module, and the registration module is configured to register in a trunking communication application server.
The user equipment according to claim 14, wherein the first MCCH repetition period is consistent with a period of dynamic scheduling information of a multicast channel in which the MBMS control information of the multimedia broadcast multicast service is located.
A base station, comprising: a transceiver module, a processor, a memory, and a bus, wherein the transceiver module, the processor, and the memory are respectively connected to the bus, wherein:

The transceiver module is configured to notify a user equipment of a first MCCH repetition period and a second MCCH repetition period;

The memory stores a program, the program is configured to control the transceiver module to broadcast a multimedia broadcast multicast service to the user equipment on the multi-point control channel MCCH by using the first MCCH repetition period in a cluster communication session start period MBMS control information, wherein the first MCCH repetition period is applicable to a trunking communication service;

The program is further configured to control the transceiver module to broadcast multimedia broadcast multicast service MBMS control information to the user equipment by using a second MCCH repetition period during a non-cluster communication session start period, where the second MCCH repetition period is applicable to The multimedia broadcast multicast service, and the first MCCH repetition period is less than the second MCCH repetition period;

The processor is configured to run the program.
The base station according to claim 17, wherein the first MCCH repetition period is consistent with a period of dynamic scheduling information MSI of a multicast channel in which the MBMS control information of the multimedia broadcast multicast service is located.
The base station according to claim 17, wherein the cluster communication session start period is an MCCH of N multimedia broadcast multicast services Modify the period, where N is an integer or fraction.
The base station according to claim 17, wherein The transceiver module respectively notifies the user equipment of the first MCCH repetition period and the second MCCH repetition period.
The base station according to claim 20, wherein the transceiver module notifies the user equipment of the first MCCH repetition period by using RRC dedicated signaling.
A user equipment, comprising: a transceiver module, a processor, a memory, and a bus, wherein the transceiver module, the processor, and the memory are respectively connected to the bus, wherein:

The memory stores a program, the program is configured to control the transceiver module to acquire a first MCCH repetition period and a second MCCH repetition period from a base station;

The program is further configured to control the transceiver module to calculate a subframe position where the multi-point control channel MCCH is located according to the first MCCH repetition period, and read a multi-point control channel MCCH, where the content of the multi-point control channel MCCH includes The MBMS control information of the multimedia broadcast multicast service broadcasted by the base station, where the first MCCH repetition period is used for trunking communication service, the first MCCH repetition period is smaller than the second MCCH repetition period, and the second MCCH is repeated. The period applies to multimedia broadcast multicast services;

The processor is configured to run the program.
The user equipment according to claim 22, wherein the program is further configured to control the transceiver module to register in a trunking communication application server.
The user equipment according to claim 22, wherein the first MCCH repetition period is consistent with a period of dynamic scheduling information MSI of a multicast channel in which the MBMS control information of the multimedia broadcast multicast service is located.