Multicast broadcast service counting method

Abstract

The invention discloses a multicast broadcast service counting method. The method comprises the following steps: a base station issues a counting notice to UE (User Equipment) through a paging message or a value Tag mode; the UE in the idle state or the inactive state feeds back to the base station through the MSG1 or the MSG3, and the base station confirms through the MSG4; and the UE in the connection state feeds back and confirms with the base station through the MAC CE or RRC message. The method and the device have the advantages that the condition that the UE in the idle state and the inactive state is interested in the MBMS can be counted without converting the UE in the idle state and the inactive state into the connected state, the counting result is improved, and the power consumption of the terminal is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of multimedia broadcast multicast services, and is particularly applicable to the multicast broadcast service counting method. Background Art

[0002] In the existing LTE MBMS (Multimedia Broadcast Multicast Service) counting process, the network sends a counting request to the UE (User Equipment) through RRC (Radio Resource Control) dedicated signaling. The UE reports the MBMS service situation it is interested in through RRC dedicated signaling. This mode only supports counting UE devices in the connected state and cannot cover UE in the idle state (RRC Idle) and the inactive state (RRC Inactive). However, in a 5G network, UE in the idle state and the inactive state may also need to receive MBMS services, such as GNSS high-precision positioning assistance information. At this time, UE in the idle state and the inactive state must first change to the connected state before they can feedback their interest in MBMS services, which will lead to unnecessary terminal power consumption. At the same time, since UE in the idle state and the inactive state cannot be counted, the counting results of the existing technology cannot accurately reflect the needs of all potential MBMS service users. Summary of the Invention

[0003] The purpose of the present invention is to provide a multicast broadcast service counting method, aiming to solve the problem that UE in the idle state and the inactive state must first change to the connected state before they can feedback their interest in MBMS services.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: In the multicast broadcast service counting method of the present invention, the base station sends a counting notification to the UE in the form of a paging message or a valueTag; the idle state or inactive state UE feeds back to the base station through MSG1 or MSG3, and the base station confirms through MSG4; the connected state UE feeds back and confirms with the base station through a MAC CE or an RRC message.

[0005] Further, the counting notification includes one or more multicast broadcast service identifiers, one or more multicast broadcast area identifiers, one or more counting response times, one or more counting response periods, one or more specific preambles and / or the corresponding relationship between a specific RACH occasion and a beam.

[0006] Further, the configuration granularity of the counting response time, the counting response period, the specific preamble and / or the corresponding relationship between a specific RACH occasion and a beam is for one multicast broadcast service, or a group of multicast broadcast services, or all multicast broadcast services.

[0007] Further, the feedback method of the UE to the base station includes setting the bits corresponding to the multicast and broadcast services of interest to the UE to 1 or 0 in the form of a bitmap, and feeding back the indexes of the multicast and broadcast services of interest to the UE in the form of indexes.

[0008] Further, the UE can report location information while feeding back to the base station.

[0009] Further, the idle or inactive UE can also use a specific preamble and / or a specific RACH occasion to send MSG1 to the base station for feedback.

[0010] The advantage of the present invention is that it is not necessary for the idle and inactive UEs to first convert to the connected state to count the situations of the UEs in the idle and inactive states being interested in the MBMS service, which improves the counting result and reduces the power consumption of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic flow chart of the multicast and broadcast service counting method according to the present invention.

[0012] Figure 2 is a schematic diagram of the counting process of the multicast and broadcast service counting method according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0014] Embodiment 1 As Figure 1 shown, in the multicast and broadcast service counting method according to the present invention, the base station sends a counting notification to the UE in the form of a paging message or a valueTag; the idle or inactive UE feeds back to the base station through MSG1 or MSG3, and the base station confirms through MSG4; the connected UE feeds back and confirms with the base station through a MAC CE or an RRC message.

[0015] The counting notification carries at least one or more multicast and broadcast service identifiers, and may also carry one or more multicast and broadcast area identifiers, one or more counting response times, one or more counting response periods, and the corresponding relationship between one or more specific preambles and / or specific RACH occasions and beams.

[0016] Among them, the configuration granularity of the correspondence relationship between the counting response time, the counting response period, the specific preamble, and / or the specific RACH occasion and the beam can be: one multicast broadcast service, or a group of multicast broadcast services, or all multicast broadcast services.

[0017] The multicast broadcast area identifier is used to indicate that the UE needs to feedback the interested situation of the multicast broadcast service within the range of this area.

[0018] The counting response time is used to indicate the longest response time for the UE to feedback the interested situation of the multicast broadcast service since receiving the paging message or reading the valueTag. That is, the UE interested in the multicast broadcast service needs to feedback the interested situation of the multicast broadcast service at least once within this time range.

[0019] The counting response period is used to indicate that the UE should feedback the interested situation of the multicast broadcast service in a periodic manner.

[0020] The ways for the UE to feedback its interest in one or several multicast broadcast services to the base station include: Setting the corresponding bit of the multicast broadcast service interested by the UE to 1 or 0 in the bitmap manner. Each bit in the bitmap corresponds to one or a group of multicast broadcast services in the counting system information. If the UE is interested in a certain, or a certain group, or one or more multicast broadcast services in a certain group, the corresponding bit can be set to 1 (or 0).

[0021] Feedbacking the index of the multicast broadcast service interested by the UE in the index manner. For example, if the network carries N multicast broadcast service identifiers (the indexes are 0 to N - 1 in sequence) in the counting request system information, and the UE is only interested in the 2nd and 5th multicast broadcast services, then only the indexes 1 and 4 need to be carried in the feedback message.

[0022] The idle state or inactive state UE can also use the specific preamble and / or the specific RACH occasion to send MSG1, so that the base station knows on which beam the UE hopes to receive the corresponding multicast broadcast service.

[0023] When feedbacking the interested situation of the multicast broadcast service, the UE location can also be reported. The interested situations of multiple multicast broadcast services can be reported through one message or multiple messages.

[0024] Taking the example that the base station indicates that the UE needs to feedback the interested situation of the multicast broadcast service through a short paging message (that is, the PDCCH of the paging message carries the multicast broadcast counting request indication), the counting process is described as follows.

[0025] After receiving a short paging message, a UE interested in multicast / broadcast services receives counting request system information. The counting request system information carries multiple multicast / broadcast service identifiers, a counting response time, and a counting response period.

[0026] Within the counting response time range starting from the reception of the short paging message, the UE feeds back its interest in multicast / broadcast services. When the counting response period arrives, the UE needs to feed back its interest in multicast / broadcast services again. Based on the counting response period, the network can send paging messages only to UEs that newly enter its service area, thereby avoiding signaling overhead caused by sending paging messages to old UEs that are always within its service area again.

[0027] As Figure 2 shown, assume that UE1 is the first UE paged by the base station and UE3 is the last UE paged by the base station. The counting response time carried in the short paging message is 40 ms and the counting response period is 160 ms. The base station can then know at which time point it starts receiving counting responses earliest and at which time point it will no longer receive corresponding counting responses (except for UEs that newly enter the cell), and can then count the counting responses during this time period. The red arrows in the figure are the information fed back by the UEs to the base station.

Claims

1. A method for counting multicast broadcast services, characterized in that: The base station sends a counting notification to the UE through a paging message or valueTag; the idle or inactive UE feeds back to the base station through MSG1 or MSG3, and the base station confirms through MSG4; The connected UE provides feedback and confirmation to the base station through MAC CE or RRC message.

2. A method for counting multicast broadcast services according to claim 1, characterized in that: The counting notification includes one or more multicast broadcast service identifiers, one or more multicast broadcast area identifiers, one or more counting response times, one or more counting response periods, one or more specific preambles and / or a correspondence between specific RACH occasions and beams.

3. A method for counting multicast broadcast services according to claim 2, characterized in that: The configuration granularity of the correspondence between the counting response time, counting response period, specific preamble and / or specific RACH occasion and beam is one multicast broadcast service, or a group of multicast broadcast services, or all multicast broadcast services.

4. A method for counting multicast broadcast services according to claim 1, characterized in that: The UE feeds back to the base station in the following ways: setting a bit corresponding to the multicast broadcast service that the UE is interested in to 1 or 0 in a bitmap manner; and feeding back an index of the multicast broadcast service that the UE is interested in in an index manner.

5. A method for counting multicast broadcast services according to claim 1, characterized in that: The UE can report location information while providing feedback to the base station.

6. A method for counting multicast broadcast services according to claim 1, characterized in that: The idle or inactive UE can also use a specific preamble and / or a specific RACH occasion to send MSG1 to provide feedback to the base station.

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