WO2010105461A1

WO2010105461A1 - Resource indication method and terminal

Info

Publication number: WO2010105461A1
Application number: PCT/CN2009/073423
Authority: WO
Inventors: 许辉; 苟伟; 王斌; 马子江
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-03-16
Filing date: 2009-08-21
Publication date: 2010-09-23
Also published as: CN101841773B; CN101841773A

Abstract

A resource indication method and terminal are provided in the invention. The method includes that: a terminal obtains the configuration information of a multicast control channel radio network temporary identifier (MC-RNTI) on the broadcast control channel, wherein, the MC-RNTI is used for indicating the resource configuration of the multicast control channel (MCCH); the terminal obtains the MC-RNTI on the physical downlink control channel based on the configuration information of the MC-RNTI. Through this technical scheme, the terminal can obtain the MCCH resource position in the single cell mode, and then the related control information of the multicast service is acquired, the system complexity is simplified, the terminal power consumption is reduced, and the service efficiency of the multimedia broadcast multicast service (MBMS) is improved.

Description

Resource indication method and terminal

TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to a resource indication method and terminal. BACKGROUND At present, in a Multimedia Broadcast Multicast Service (MBMS) communication, a point-to-multipoint multicast control channel (MCC) is used in a terminal and a network. Transfer control plane information. On the MCCH, the structure related information of the MBMS in a specific cell and the network can be provided, and information about the currently opened MBMS and its identifier, and information about the service bearer and the neighboring cell can be provided. In the related art, the MCCH can adopt a hierarchical structure and is divided into a primary control channel (Primary).

MCCH, the cylinder is called P-MCCH), and the secondary control channel (Secondary MCCH, the cylinder is called S-MCCH), where the P-MCCH carries the common information in the MBMS, for example, general information, scheduling information of the S-MCCH, etc. The S-MCCH carries personality information, such as business information. The Broadcast Control Channel (Broadcast Control Channel, referred to as BCCH) indicates the configuration of one or two P-MCCHs (one P-MCCH for single cell mode and another P-MCCH for multi-cell mode). The P-MCCH in the multi-cell mode further carries scheduling configuration information of the S-MCCH. The P-MCCH in the single cell mode is transmitted on the Downlink-Shared Channel (DL-SCH), and the P-MCCH in the multi-cell mode is mapped to the Multicast Channel (Multicast Channel, called MCH). transmission. In the multi-cell transmission, if the MCCH does not adopt a layered structure and does not consider the MCCH's Multicast/Broadcast over Single Frequency Network (MBSFN) merge, the MCCH may be on the DL-SCH. transmission.

The MCCH is very important in the MBMS communication. In order to implement the MBMS communication, the information about the service and the bearer in the MCCH needs to be obtained first. To obtain the above information, the location information of the MCCH, that is, the mapping of the MCCH in the physical resource, needs to be obtained first. In order to ensure that the terminal obtains information in the MCCH quickly and efficiently, it is necessary to carefully design the relevant channel structure. At present, no specific solution has been given for the scheduling configuration design of MCCH. SUMMARY OF THE INVENTION The present invention has been made in view of the problem that a terminal cannot accurately acquire MCCH location information in the prior art. Therefore, a main object of the present invention is to provide a resource indication method and a terminal to solve the above problems in the related art. . In order to achieve the above object, according to an aspect of the present invention, a resource indication method is provided for indicating resource configuration of a multicast control channel. The resource indication method according to the present invention includes: the terminal acquiring the location information of the multicast control channel radio network temporary identifier MC-RNTI on the broadcast control channel, where the MC-RNTI is used to indicate the resource configuration of the multicast control channel; The MC-RNTI is obtained in the physical downlink control channel according to the location information of the MC-RNTI. Preferably, after the acquiring the MC-RNTI, the method further includes: the terminal acquiring the information of the multicast control channel on the physical downlink shared channel according to the indication of the MC-RNTI. Preferably, after the terminal acquires the information of the multicast control channel, the method further includes: the terminal acquiring the service related information of the multimedia broadcast multicast service according to the information of the multicast control channel. Preferably, the acquiring the location information of the MC-RNTI by the terminal includes: acquiring, by the terminal, the location information of the MC-RNTI by using the system message on the broadcast control channel, where the location information of the MC-RNTI is preset in the system message by the system. Preferably, before the acquiring the MC-RNTI in the physical downlink control channel, the method further includes: the system setting the MC-RNTI in the downlink control information of the physical downlink control channel. Preferably, the acquiring, by the terminal, the MC-RNTI in the physical channel includes: the terminal performing blind detection and decoding within a range indicated by the location information in the physical channel, until the acquiring the MC-RNTL, the MC-RNTI location information is used to indicate the MC- Location information of the RNTI in the physical channel. Preferably, the resource configuration of the multicast control channel indicated by the MC-RNTI includes at least: a physical downlink shared channel of the subframe in which the multicast control channel is located, and location information of the multicast control channel in the physical downlink shared channel. In order to achieve the above object, according to an aspect of the present invention, a terminal is provided. The terminal according to the present invention includes: a first acquiring module, configured to acquire location information of a multicast control channel radio network temporary identifier MC-RNTI on a broadcast control channel, where the MC-RNTI is used to indicate resource configuration of the multicast control channel And a second obtaining module, configured to acquire the MC-RNTL in the physical downlink control channel according to the location information of the MC-RNTI, where the terminal further includes: a third acquiring module, configured to:

The MC-RNTI indicates that the information of the multicast control channel is acquired on the physical downlink shared channel, and the fourth ear is used to obtain the service related information of the multimedia broadcast multicast service according to the information of the multicast control channel. With the technical solution of the present invention, the problem that the terminal cannot obtain the MCCH location information accurately in the prior art is solved by setting the MC-RNTI, so that the terminal can acquire the resource location of the MCCH in the single-cell or multi-cell transmission mode, thereby Obtaining relevant control information of the multicast service, system complexity, reduced terminal power consumption, and improved MBMS service efficiency. Other features and advantages of the invention will be set forth in the description which follows, and The objectives and other advantages of the invention will be realized and attained by the <RTI The drawings are intended to provide a further understanding of the invention, and are intended to be a part of the description of the invention. 1 is a schematic diagram of a mapping relationship between a downlink logical channel, a downlink transport channel, and a downlink physical channel according to an embodiment of the present invention; FIG. 2 is a flowchart of a resource indication method according to an embodiment of the present invention; FIG. 3 is a block diagram of a terminal in accordance with an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT As described above, for the problem of MCCH channel resource allocation in multicast communication, the embodiment of the present invention provides a method for indicating a resource location, and in the technical solution of the present invention, a multi-function is set. The MCCH-Radio Network Temporary Identifier (MC-RNTI) is used to indicate the resource configuration of the MCCH. First, the terminal passes the system information (System Information Block) on the BCCH. Obtaining the location information of the related MC-RNTI in the frame/subframe, and then acquiring the content of the MCCH on the PDSCH according to the MC-RNTI information detected on the PDCCH. Through the method, the terminal can obtain the resource configuration information of the MCCH, and obtain the specific service related information of the MBMS according to the content of the MCCH. It should be noted that, in the following description, the MCCH is used to represent the control channel uniformly. If a hierarchical structure is adopted, the following MCCH refers to the P-MCCH. The preferred embodiments of the present invention are described in the following with reference to the accompanying drawings, which are intended to illustrate and illustrate the invention. In the following description, numerous specific details are set forth However, it is apparent that the present invention may be practiced without these specific details. Further, various details may be obtained in the following embodiments and examples without departing from the spirit and scope of the appended claims. Make various combinations. Method Embodiments According to an embodiment of the present invention, a resource indication method is provided. Before describing an embodiment of the present invention, a related channel structure is first described. FIG. 1 is a downlink logical channel and a downlink according to an embodiment of the present invention. A schematic diagram of a mapping relationship between a transport channel and a downlink physical channel. As shown in FIG. 1, in the MBMS single-cell mode, the MCCH is mapped to the DL-SCH, and the DL-SCH is mapped to the Physical Downlink Shared Channel (Physical Downlink Shared Channel, The packet is referred to as PDSCH), and the resource allocation of the PDSCH can be obtained according to an indication of a physical downlink control channel (Physical Downlink Control Channel). For the multi-cell transmission mode, if the MBSFN combining of the MCCH is not considered, the MCCH can be transmitted on the DL-SCH, so the same scheme as that of the single cell can be adopted. 2 is a flowchart of a resource indication method according to an embodiment of the present invention. Before performing the processing shown in FIG. 2, first, the network side needs to put the location message corresponding to the MC-RNTI into the related system. Information (SIB), the MC-RNTI in the PDCCH message is placed in the downlink control information (Downlink Control Information, referred to as a cartridge DCI), the contents and placed in a ^ ¹ MCCH message MC-RNTI corresponding to the PDSCH. The resource indication method in the embodiment of the present invention is described below with reference to the accompanying drawings. As shown in FIG. 2, the following processing is included (step S202 - step S206): Step S202: The terminal acquires location information of the MC-RNTI in the SIB on the BCCH, where the location information of the MC-RNTI is used to indicate that the MC-RNTI is in the The location of the frame/subframe, the MC-RNTI is used to indicate the resource configuration of the MCCH. In an actual application, the resource configuration of the MCCH indicated by the MC-RNTI may include at least: the PDSCH of the subframe in which the MCCH is located, and the MCCH in the PDSCH. location information. Step S204: The terminal acquires the MC-RNTI in the PDCCH according to the location information of the MC-RNTI. Specifically, the terminal may perform blind detection within the range indicated by the location information until the MC-RNTI is obtained. Step S206: The terminal acquires MCCH information on the PDSCH according to the indication of the MC-RNTI, that is, decodes and parses the PDSCH content (MCCH information) corresponding to the MC-RNTI. After step S206, the terminal can obtain the service information of the MBMS according to the information of the MCCH. The above technical solutions of the present invention will be described in detail below with reference to examples. Example 1 Step 1: Set MC-RNTI=0xFFFC. The specific definition values of MC-RNTI are shown in Table 1. The network side (system) sets the MC-RNTI information in the DCI of the subframe PDCCH (the specific placement position is on the BCCH). In the relevant SIB, the indication is performed, and the specific content of the MCCH is set in the PDSCH corresponding to the MC-RNTI message; Step 2, the terminal reads the relevant SIB in the BCCH, and obtains the location of the MC-RNTI and the corresponding MCCH through the SIB. Information (that is, the location information of the MC-RNTI described above); Step 3: According to the location information of the MC-RNTI and the corresponding MCCH, the terminal performs blind detection on the relevant subframe PDCCH and decodes, if the detected RNTI is MC - RNTI, according to the message corresponding to the MC-RNTI, the location of the MCCH in the PDSCH can be obtained, and the corresponding bit is The PDSCH is received, and the MCCH obtained by the decoding is reported to the upper layer protocol stack. Step 4: After receiving the MCCH information sent by the terminal, the high layer protocol stack converts the information into corresponding information (that is, converts the information into the information that the terminal can recognize). And transmitting the converted MCCH information to the terminal; Step 5: The terminal obtains the MBMS service information according to the MCCH information and performs further processing. Table 1

Example 2 Step 1, according to the 3rd Generation Partnership Project (3rd Generation Partnership Project), MBMS-loaded services can be divided into two categories: Download (Download) and Stream (Stream). In order to distinguish the two types of services and accelerate the search speed of the terminal, the network side defines two RNTIs: MC _{d -} RNTI and MC _{S -} RNTI, where MC _{d -} RNTI corresponds to the download service, and MC _{S -} RNTI corresponds to the flow class. Step 2: The network side sets the MCd/s-RNTI information in the DCI of the subframe PDCCH (the specific placement position is indicated in the relevant SIB on the BCCH), and the corresponding MCCH specific content is set in the MCd/ _s- RNTI message. Corresponding PDSCH; Step 3: The terminal reads the relevant SIB in the BCCH, and obtains the location information of the M^-RNTI and the corresponding MCCH through the SIB; Step 4, according to the location information of the MCd/ _s- RNTI and the corresponding MCCH The terminal performs blind detection on the relevant subframe PDCCH and performs decoding. If the detected RNTI is MC _d -RNTI, the MCCH is explained. Corresponding to the downloading service, if the detected RNTI is the MC _S- RNTI, the MCCH corresponds to the streaming service, and the terminal determines whether to further receive the MCCH content according to the need; Step 5: If the detected RNTI is MCd/ _s - RNTI, the terminal can obtain the location of the MCCH in the PDSCH according to the message corresponding to the MCd/ _s- RNTI, and receive the PDSCH in the corresponding location, and then decode the upper layer to the upper layer protocol stack; Step 6, the terminal only According to the MCCH content, the MBMS service information is obtained and the next step is processed. It should be noted that the MCCH message is periodically sent. In order to reduce power consumption, the terminal does not need to detect the content of the MCCH every time. When the MCCH content changes (the network side indicates by Notification signaling), the terminal further reads. . Through the foregoing processing, the terminal can obtain the resource location of the MCCH in the single cell (or multi-cell) transmission mode, thereby obtaining related control information of the multicast service. The device embodiment provides a terminal according to an embodiment of the present invention. FIG. 3 is a block diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 3, the terminal according to the embodiment of the present invention includes a terminal. An acquisition module 30, a second acquisition module 32, a third acquisition module 34, and a fourth acquisition module 36. Before the description of each module on the terminal side, the operation of the system side (network side) is first described. First, the network side needs to put the location message corresponding to the MC-RNTI into the related system message (SIB), and the MC is The RNTI message is placed in the DCI of the PDCCH, and finally, the MCCH content is placed in the PDSCH corresponding to the MC-RNTI message. The following describes each module on the terminal side in detail. Specifically, first, the first acquiring module 30 on the terminal side needs to acquire the location information of the MC-RNTI in the SIB on the BCCH, where the MC-RNTI location information is used to indicate the location of the MC-RNTI in the frame/subframe. The information, the MC-RNTI is used to indicate the resource configuration of the MCCH. In an actual application, the resource configuration of the MCCH indicated by the MC-RNTI may include at least: a PDSCH of a subframe in which the MCCH is located, and location information of the MCCH in the PDSCH. Then, the second obtaining module 32 acquires the MC-RNTI in the PDCCH according to the location information of the MC-RNTI. In an actual application, the second acquiring module 32 needs to perform blind detection within the range indicated by the location information until the MC-RNTI is acquired. . After the second acquisition module 32 acquires the MC-RNTI, the third acquisition module 34 is configured to acquire the information of the MCCH on the PDSCH according to the indication of the MC-RNTI, that is, the PDSCH content (MCCH information) corresponding to the MC-RNTI. Decoding and parsing. Finally, the fourth ear 4 is used to obtain the MBMS service information according to the information of the MCCH. It is to be understood that various changes and combinations may be made to the various modules described above without departing from the spirit and scope of the invention. For example, the first obtaining module 30, the second obtaining module 32, the third obtaining module 34, and the fourth obtaining module 36 can be uniformly set because their functions are consistent. In summary, with the technical solution of the present invention, the problem that the terminal cannot accurately acquire the MCCH location information in the related art is solved by setting the MC-RNTI, so that the terminal can acquire the MCCH in the single-cell or multi-cell transmission mode. The resource location, thus obtaining the relevant control information of the multicast service, reduces the system complexity, reduces the power consumption of the terminal, and improves the efficiency of the MBMS service. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A resource indication method, configured to indicate a resource configuration of a multicast control channel, where the method includes:

The terminal acquires a multicast control channel wireless network temporary identifier on the broadcast control channel

Location information of the MC-RNTI, where the MC-RNTI is used to indicate resource configuration of the multicast control channel;

The terminal is located in the location information of the MC-RNTI, and obtains the MC-RNTI in a physical downlink control channel.

2. The method according to claim 1, wherein after the acquiring the MC-RNTI, the method further comprises:

And obtaining, by the terminal, information of the multicast control channel on a physical downlink shared channel according to the indication of the MC-RNTI.

3. The method according to claim 2, wherein after the acquiring the information of the multicast control channel, the method further includes:

The terminal acquires service related information of the multimedia broadcast multicast service according to the information of the multicast control channel.

4. The method according to claim 1, wherein the acquiring, by the terminal, location information of the MC-RNTI includes:

The terminal acquires the location information of the MC-RNTI by using a system message on the broadcast control channel, where the location information of the MC-RNTI is preset in the system message by the system.

The method according to claim 1, wherein before the acquiring the MC-RNTI in the physical downlink control channel, the method further includes:

The system sets the MC-RNTI in downlink control information of the physical downlink control channel.

The method according to claim 1, wherein the acquiring, by the terminal, the MC-RNTI in the physical downlink control channel comprises:

The terminal performs blind detection and decoding in a range indicated by the location information in the physical channel until the MC-RNTL is acquired.

The method according to any one of claims 1 to 5, wherein the MC-RNTI location information is used to indicate location information of the MC-RNTI in the physical channel.

The method according to any one of claims 1 to 5, wherein the resource configuration of the multicast control channel indicated by the MC-RNTI includes at least: a subframe in which the multicast control channel is located Physical downlink shared channel, location information of the multicast control channel in the physical downlink shared channel.

9. A terminal, comprising:

a first acquiring module, configured to acquire a location information of a multicast control channel radio network temporary identifier MC-RNTI on a broadcast control channel, where the MC-RNTI is used to indicate resource configuration of the multicast control channel;

And a second acquiring module, configured to acquire the MC-RNTI in the physical downlink control channel according to the location information of the MC-RNTI.

The terminal according to claim 9, wherein the terminal further comprises:

a third acquiring module, configured to acquire information about the multicast control channel on a physical downlink shared channel according to the indication of the MC-RNTI;

And a fourth acquiring module, configured to obtain service related information of the multimedia broadcast multicast service according to the information of the multicast control channel.