CN113163456B

CN113163456B - Communication method and device

Info

Publication number: CN113163456B
Application number: CN202010014942.0A
Authority: CN
Inventors: 周锐; 张大钧
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2023-09-01
Anticipated expiration: 2040-01-07
Also published as: WO2021139597A1; CN113163456A

Abstract

The embodiment of the application provides a communication method and a communication device, which are used for providing a transmission scheme of MBMS under a 5G background. The communication method provided by the embodiment of the application comprises the following steps: the network side equipment sends the corresponding relation between the identification of the broadcast multicast service and the transmission bandwidth for the broadcast multicast service to the terminal; and the network side equipment transmits the data of the broadcast multicast service on the transmission bandwidth included in the corresponding relation. And further, the data of the broadcast multicast service can be transmitted on the transmission bandwidth included in the correspondence.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communications method and apparatus.

Background

In the prior art, 5G currently only supports unicast services, but broadcast multicast services (multimedia broadcast multicast service, MBMS) have long existed in 3G, 4G technology as an important service type. In view of the importance of MBMS services for certain vertical areas (e.g. internet of vehicles, public safety), 5G is about to introduce MBMS. Currently, there is no corresponding MBMS transmission scheme in the 5G context.

Disclosure of Invention

The application provides a communication method and a communication device, which are used for providing a transmission scheme of MBMS in a 5G background.

In a first aspect, the present application provides a method of communication, the method comprising:

the network side equipment sends the corresponding relation between the identification of the broadcast multicast service and the transmission bandwidth for the broadcast multicast service to the terminal;

and the network side equipment transmits the data of the broadcast multicast service on the transmission bandwidth included in the corresponding relation.

In one possible implementation, the method further includes:

the network side equipment sends scheduling information corresponding to paging information or system information, wherein the scheduling information is used for indicating the terminal to switch from the transmission bandwidth to the initial partial bandwidth to receive the paging information or the system information;

the scheduling information is carried on a downlink physical control channel PDCCH corresponding to the transmission bandwidth of the broadcast multicast service.

In a possible implementation manner, the identifier of the broadcast-multicast service at least includes a temporary mobile group identifier TMGI, or the identifier of the broadcast-multicast service at least includes a temporary mobile group identifier TMGI and a SESSION identity identifier ID.

In one possible implementation, the transmission bandwidth of the broadcast-multicast service includes a partial bandwidth.

In one possible implementation, the correspondence is carried in a system message or a control message of the multicast broadcast service.

In one possible implementation, the method further includes:

acquiring an identifier of a broadcast multicast service transmitted by a terminal and capability information of a part of bandwidth of the terminal;

determining a first partial bandwidth configured for the terminal based on the capability information of the partial bandwidth, wherein the transmission bandwidth of the broadcast multicast service corresponding to the identifier is located in the frequency domain range of the first partial bandwidth;

and sending configuration information to the terminal, wherein the configuration information is used for indicating the first part of bandwidth.

In one possible implementation manner, before the determining, based on the capability information of the partial bandwidth, a first partial bandwidth configured for the terminal, the method further includes:

and determining that the priority of the broadcast multicast service of the terminal is greater than a preset priority threshold.

In one possible implementation manner, the determining, based on the capability information of the partial bandwidth, the first partial bandwidth configured for the terminal includes:

acquiring a second partial bandwidth currently occupied by unicast service of the terminal;

if the transmission bandwidth is in the frequency domain range of the second partial bandwidth, determining that the second partial bandwidth is the first partial bandwidth;

And if all or part of the frequency domain range of the transmission bandwidth is outside the frequency domain range of the second partial bandwidth, determining a third partial bandwidth as the first partial bandwidth from the partial bandwidths supported by the terminal, wherein the third partial bandwidth is different from the second partial bandwidth.

In one possible implementation manner, the acquiring the identifier of the broadcast multicast service of the terminal and the capability information of the partial bandwidth of the terminal includes:

receiving a first message sent by the terminal, wherein the first message comprises an identifier of a broadcast multicast service of the terminal and capability information of the partial bandwidth; or alternatively, the process may be performed,

and receiving a second message sent by the network equipment of the source cell of the terminal, wherein the second message comprises the identification of the broadcast multicast service of the terminal and the capability information of the partial bandwidth.

In one possible implementation, the first message is carried in radio link control, RRC, signaling.

In one possible implementation, the second message is carried in an interface message between a plurality of network-side devices.

In one possible implementation, the method includes:

transmitting first switching indication information to the terminal, wherein the first switching indication information is used for indicating the terminal to switch to the transmission bandwidth for data transmission of the broadcast multicast service;

The first switching indication information is carried on a physical downlink control channel PDCCH corresponding to a part of bandwidth occupied by the current unicast service of the terminal.

In one possible implementation, the method further includes:

and sending second switching indication information to the terminal, wherein the second switching indication information is used for indicating the terminal to switch to the first part of bandwidth for data transmission of the unicast service, and the second switching indication information is borne on a Physical Downlink Control Channel (PDCCH) corresponding to the transmission bandwidth occupied by the current broadcast multicast service of the terminal.

In one possible implementation, the method further includes:

and after receiving indication information of exiting the broadcast multicast service sent by the terminal, prohibiting the use of a first mode for configuring partial bandwidth for the terminal, wherein the first mode is a mode for configuring partial bandwidth for the terminal according to transmission bandwidth corresponding to the identifier of the broadcast multicast service selected by the terminal.

According to the method, the network equipment can send the data of the broadcast multicast service on the MBMS transmission bandwidth through sending the corresponding relation between the identification of the broadcast multicast service and the transmission bandwidth for the broadcast multicast service. The continuous operation of the MBMS service can be ensured, and the parallel operation with the unicast service can be ensured.

In a second aspect, the present application provides a method of communication, the method comprising:

the terminal receives the corresponding relation between the identification of the broadcast multicast service and the transmission bandwidth for the broadcast multicast service from the network side equipment;

and the terminal receives the data of the broadcast multicast service on the transmission bandwidth included in the corresponding relation.

In a possible implementation manner, the terminal receives the data of the broadcast multicast service on a transmission bandwidth included in the correspondence relationship, including:

when the terminal is in an idle state and a non-active state, the terminal receives the data of the broadcast multicast service from the transmission bandwidth included in the corresponding relation; or alternatively, the first and second heat exchangers may be,

when the terminal is in a connection state and the transmission bandwidth occupied by the unicast service of the terminal and the transmission bandwidth of the broadcast multicast service overlap, simultaneously receiving data of the unicast service and data of the broadcast multicast service on the transmission bandwidth; or alternatively, the first and second heat exchangers may be,

and when the terminal is in a connection state and the transmission bandwidth occupied by the unicast service of the terminal and the transmission bandwidth of the broadcast multicast service are not overlapped, not receiving the data of the unicast service and the data of the broadcast multicast service at the same time.

In one possible implementation, the method further includes:

the terminal receives the paging information or the scheduling information corresponding to the system information sent by the network side equipment on the transmission bandwidth;

the terminal switches from the transmission bandwidth to the initial partial bandwidth to receive the paging information or the system information;

after the paging information or the system information is determined to be received, the terminal is switched from the initial partial bandwidth to the transmission bandwidth to receive the data of the broadcast multicast service.

In one possible implementation, the method further includes:

the terminal sends a first message to network side equipment, wherein the first message comprises an identifier of a broadcast multicast service and capability information of a part of bandwidth of the terminal.

In one possible implementation, the method further includes:

receiving configuration information sent by the network side equipment, wherein the configuration information is used for indicating a first part of bandwidth configured for the terminal;

wherein, the transmission bandwidth of the broadcast multicast service corresponding to the identifier is located within the frequency domain range of the first partial bandwidth.

In one possible implementation, the method includes:

after receiving first switching indication information sent by network side equipment, the terminal switches to the transmission bandwidth to perform data transmission of the broadcast multicast service;

In one possible implementation, the method further includes:

after receiving the second switching indication information sent by the network side equipment, the terminal switches to the transmission bandwidth of the unicast service to perform data transmission of the unicast service;

the second switching indication information is carried on a physical downlink control channel PDCCH corresponding to a transmission bandwidth occupied by the current broadcast multicast service of the terminal.

In one possible implementation, the method further includes:

the terminal sends indication information for exiting the broadcast multicast service, wherein the indication information is used for indicating the network side equipment to not limit to the mode of configuring partial bandwidth for the terminal by using a first mode, and the first mode is a mode of configuring partial bandwidth for the terminal according to a transmission bandwidth corresponding to the identifier of the broadcast multicast service selected by the terminal.

According to the method, the terminal equipment can receive the data of the broadcast multicast service on the MBMS transmission bandwidth by acquiring the corresponding relation between the identification of the broadcast multicast service sent by the network side equipment and the transmission bandwidth for the broadcast multicast service. The continuous operation of the MBMS service can be ensured, and the parallel operation with the unicast service can be ensured.

In a second aspect, the present application provides a communication device comprising:

a first sending module, configured to send, to a terminal, a correspondence between an identifier of a broadcast multicast service and a transmission bandwidth for the broadcast multicast service;

and the second sending module is used for sending the data of the broadcast multicast service on the transmission bandwidth included in the corresponding relation.

In one possible implementation, the device further comprises a third transmitting module,

The third sending module is configured to send scheduling information corresponding to paging information or system information, where the scheduling information is used to instruct the terminal to switch from the transmission bandwidth to an initial partial bandwidth and receive the paging information or the system information;

In one possible implementation, the apparatus further includes:

the acquisition module is used for acquiring the identification of the broadcast multicast service sent by the terminal and the capability information of partial bandwidth of the terminal;

a first determining module, configured to determine, based on the capability information of the partial bandwidth, a first partial bandwidth configured for the terminal, where a transmission bandwidth of the broadcast multicast service corresponding to the identifier is located in a frequency domain range of the first partial bandwidth;

And the fourth sending module is used for sending configuration information to the terminal, wherein the configuration information is used for indicating the first part of bandwidth.

In one possible implementation, the apparatus further includes:

and the second determining module is used for determining that the priority of the broadcast multicast service of the terminal is greater than a preset priority threshold.

In one possible implementation manner, the first determining module is configured to obtain a second portion of bandwidth currently occupied by a unicast service of the terminal;

In a possible implementation manner, the acquiring module is configured to receive a first message sent by the terminal, where the first message includes an identifier of a broadcast multicast service of the terminal and capability information of the partial bandwidth; or alternatively, the process may be performed,

In one possible implementation, the method further includes:

a fifth sending module, configured to send first switching indication information to the terminal, where the first switching indication information is used to instruct the terminal to switch to the transmission bandwidth to perform data transmission of the broadcast multicast service;

In one possible implementation, the method further includes:

a sixth sending module, configured to send second switching indication information to the terminal, where the second switching indication information is used to instruct the terminal to switch to the first bandwidth for data transmission of the unicast service, and the second switching indication information is carried on a physical downlink control channel PDCCH corresponding to a transmission bandwidth occupied by the current broadcast multicast service of the terminal.

In one possible implementation, the method further includes:

and the prohibition module is used for prohibiting the use of a first mode for configuring partial bandwidth for the terminal after receiving the indication information of exiting the broadcast multicast service sent by the terminal, wherein the first mode is a mode for configuring partial bandwidth for the terminal according to the transmission bandwidth corresponding to the identifier of the broadcast multicast service selected by the terminal.

In a fourth aspect, the present application provides a communication device comprising:

a first receiving module, configured to receive, by a terminal, a correspondence between an identifier of a broadcast multicast service and a transmission bandwidth for the broadcast multicast service from a network side device;

and the second receiving module is used for receiving the data of the broadcast multicast service by the terminal on the transmission bandwidth included in the corresponding relation.

In a possible implementation manner, the first receiving module is configured to receive, when the terminal is in an idle state and an inactive state, data of the broadcast-multicast service from a transmission bandwidth included in the correspondence; or alternatively, the first and second heat exchangers may be,

In a possible implementation manner, the first receiving module is further configured to receive, by the terminal, scheduling information corresponding to paging information or system information sent by the network side device on the transmission bandwidth;

In one possible implementation, the method further includes:

the first sending module is configured to send a first message to a network side device by using the terminal, where the first message includes an identifier of a broadcast multicast service and capability information of a part of bandwidth of the terminal.

In one possible implementation, the apparatus further includes:

a third receiving module, configured to receive configuration information sent by the network side device, where the configuration information is used to indicate a first part of bandwidth configured for the terminal;

in one possible implementation, the method includes:

the first switching module is used for switching the terminal to the transmission bandwidth to perform data transmission of the broadcast multicast service after receiving first switching instruction information sent by the network side equipment;

In one possible implementation, the method further includes:

the second switching module is used for switching the terminal to the transmission bandwidth of the unicast service to perform data transmission of the unicast service after receiving second switching instruction information sent by the network side equipment;

In one possible implementation, the apparatus further includes:

the second sending module is configured to send, by the terminal, indication information for exiting the broadcast multicast service, where the indication information is configured to instruct the network side device to not limit to use a first mode to configure a part of bandwidth for the terminal, and the first mode is a mode in which a transmission bandwidth corresponding to an identifier of the broadcast multicast service selected by the terminal is used to configure a part of bandwidth for the terminal.

In a fifth aspect, the present application also provides a computer storage medium having stored thereon a computer program which when executed by a processing unit performs the steps of the method of the first or second aspect.

In a sixth aspect, the present application also provides a communications device comprising a processor and a memory, wherein the memory is adapted to store computer executable instructions which, when executed by the processor, cause the device to perform the steps of the method of the first or second aspect.

In addition, the technical effects caused by any implementation manner of the third aspect to the sixth aspect may refer to the technical effects caused by different implementation manners of the first aspect, which are not described herein.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

Drawings

Fig. 1 is a schematic diagram of an example of an application scenario in an embodiment of the present application;

FIG. 2 is a flow chart of a communication method according to an embodiment of the application;

FIG. 3 is a flow chart of a communication method according to an embodiment of the application;

FIG. 4 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present application;

FIG. 5 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present application;

FIG. 6 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present application;

FIG. 7 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present application;

FIG. 8 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present application;

FIG. 9 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present application;

FIG. 10 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a communication device according to an embodiment of the present application;

FIG. 12 is a schematic diagram of a communication device according to an embodiment of the present application;

FIG. 13 is a schematic diagram of a communication device according to an embodiment of the present application;

fig. 14 is a schematic diagram of a communication device according to an embodiment of the application.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) systems, worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, future fifth generation (5th Generation,5G) systems such as new generation radio access technologies (new radio access technology, NR), and future communication systems such as 6G systems.

The present application will present various aspects, embodiments, or features about a system that may include a plurality of devices, components, modules, etc. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, combinations of these schemes may also be used.

In addition, in the embodiments of the present application, the term "exemplary" is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term use of an example is intended to present concepts in a concrete fashion.

In the embodiment of the present application, information, signals, messages, channels may be mixed in some cases, and it should be noted that the meaning of the expression is consistent when the distinction is not emphasized. "of", "corresponding" and "corresponding" are sometimes used in combination, and it should be noted that the meaning of the expression is consistent when the distinction is not emphasized.

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

The embodiment of the application can be applied to a traditional typical network and also can be applied to a future UE-centric network. The UE-central network introduces a network architecture without cells (Non-cells), i.e. a plurality of small stations are arranged in a specific area to form a super cell (Hyper cell), and each small station is a transmission point (Transmission Point, TP) or a transmission receiving point (Transmission and Reception Point, TRP) of the Hyper cell and is connected to a centralized controller (controller). When the UE moves in the Hyper cell, the network side equipment selects a new sub-cluster for the UE to serve the UE at all times, so that real cell switching is avoided, and the continuity of the UE service is realized. Wherein the network side device comprises a wireless network device. Or, in a network with the UE as a center, multiple network side devices, such as the small stations, may have independent controllers, such as a distributed controller, where each small station can independently schedule the user, and interaction information exists between the small stations over a long period, so that there may be a certain flexibility when providing a collaboration service for the UE.

To facilitate understanding of the embodiments of the present application, a communication system suitable for use in the embodiments of the present application will be described in detail with reference to the communication system shown in fig. 1. Fig. 1 shows a schematic diagram of a communication system suitable for use in the communication method of an embodiment of the present application. As shown in fig. 1, the communication system 100 includes a network device 102 and a terminal device 106, where the network device 102 may be configured with multiple antennas and the terminal device may be configured with multiple antennas. Optionally, the communication system may further comprise a network device 104, which network device 104 may also be configured with a plurality of antennas.

It should be appreciated that network device 102 or network device 104 may also include a number of components (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, etc.) related to the transmission and reception of signals.

The network device is a device with a wireless transceiving function or a chip which can be arranged on the device, and the device includes but is not limited to: an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (home evolved NodeB, or home Node B, HNB, for example), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission point (transmission and reception point, TRP or transmission point, TP), etc., may also be 5G, such as NR, a gbb in a system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or may also be a network Node constituting a gbb or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU, distributed unit), etc.

A terminal device can also be called a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), or the like. The embodiment of the application does not limit the application scene. In the application, the terminal equipment with wireless receiving and transmitting function and the chip capable of being arranged on the terminal equipment are collectively called as the terminal equipment.

In the communication system 100, both the network device 102 and the network device 104 may communicate with a plurality of terminal devices (e.g., terminal device 106 shown in the figures). Network device 102 and network device 104 may communicate with one or more terminal devices similar to terminal device 106. It should be understood that the terminal device in communication with network device 102 and the terminal device in communication with network device 104 may be the same or different. The terminal device 106 shown in fig. 1 may communicate with both the network device 102 and the network device 104, but this is merely illustrative of one possible scenario, and in some scenarios the terminal device may communicate with only the network device 102 or the network device 104, as the application is not limited in this respect.

It should be understood that fig. 1 is a simplified schematic diagram for ease of understanding only, and that other network devices or other terminal devices may be included in the communication system, which are not shown in fig. 1.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

It should be appreciated that the technical solution of the present application may be applied in a wireless communication system, for example, the communication system 100 shown in fig. 1, where the communication system may include at least one network device and at least one terminal device, where the network device and the terminal device may communicate through a wireless air interface. For example, the network devices in the communication system may correspond to network device 102 and network device 106 shown in fig. 1, and the terminal device may correspond to terminal device 104 shown in fig. 1.

In the following, without losing generality, an interaction procedure between a terminal device and a network device is taken as an example to describe in detail an embodiment of the present application, where the terminal device may be a terminal device in a wireless communication system and having a wireless connection relationship with the network device. It is understood that the network device may transmit the data packet based on the same technical scheme as a plurality of terminal devices having a wireless connection relationship in the wireless communication system. The application is not limited in this regard.

Fig. 2 is a flow chart of a communication method according to an embodiment of the present invention, as shown in fig. 2, the method may include the following steps:

step 201: and the network side equipment sends the corresponding relation between the identification of the broadcast multicast service and the transmission bandwidth for the broadcast multicast service to the terminal.

In this embodiment, the transmission bandwidth of the broadcast multicast service may be a specific sub-band for transmitting MBMS data, and for convenience of understanding, the transmission bandwidth of the broadcast multicast service is referred to hereinafter in part by the MBMS subband. A detailed explanation of the MBMS subband in the present invention is given below: a set of a plurality of consecutive common resource blocks (common resource block, CRB). The set is determined by the MBMS Subband starting position, which is the distance from point a (a reference point on a frequency domain defined in 5G), expressed by the number of CRBs, and the MBMS Subband bandwidth. The size of the MBMS subband is represented by the number of Resource Blocks (RBs).

The network side device sends the corresponding relation to the terminal, and the purpose may be to instruct the terminal to use the MBMS Subband, so that the terminal may perform data transmission of the broadcast multicast service on the determined MBMS Subband according to the information. The correspondence relationship may be expressed in any form, for example, in the form of a list.

In an embodiment, the identification of the broadcast-multicast service at least includes a temporary mobile group identification TMGI, or the identification of the broadcast-multicast service at least includes a temporary mobile group identification TMGI and a SESSION identity identification ID. Here the TMGI may be used to uniquely identify the broadcast-multicast service and the SESSION ID may be used to uniquely identify the created SESSION.

In one embodiment, the transmission bandwidth of the broadcast-multicast service comprises a partial bandwidth.

It should be noted that, the concept introduced in the 5G is a partial Bandwidth (BWP), and the 5G NR technology introduces a Bandwidth adaptive technology (BA), where the Bandwidth adaptive technology divides the entire frequency band into a plurality of sub-scheduling Bandwidth segments (BWP), and allocates different BWP to the terminal according to the need, where the BWP can efficiently use the large Bandwidth frequency resource of the 5G NR, and for different terminals, for different service needs of the same terminal, the network side can flexibly allocate different frequency resources to the same terminal according to the need, and the terminal does not need to monitor the entire frequency band all the time. For example, the initial BWP (transmission sub-bandwidth for transmitting system information and paging) may be an initial BWP, or a BWP other than the initial BWP. Taking the above case as an example, the network device, such as the 5G base station, may send the corresponding relationship between the initial BWP and the TMGI/SESSION ID to the terminal device, such as a mobile phone. The embodiment is based on the 5G application scenario, and examples are given for the data transmission bandwidth BWP of 5G, where the actual application scenario may not be limited to the 5G scenario, and the partial bandwidth may be a newly defined partial bandwidth.

In one embodiment, the correspondence may be carried in a system message or a control message of the multicast broadcast service.

Step 202: and the network side equipment transmits the data of the broadcast multicast service on the transmission bandwidth included in the corresponding relation.

For example, if the network side device notifies the terminal of the correspondence between the initial BWP and the TMGI/SESSION ID, the network side device sends the MBMS data on the initial BWP.

In one embodiment, the method further comprises: the network side equipment sends scheduling information corresponding to paging information or system information, wherein the scheduling information is used for indicating the terminal to switch from the transmission bandwidth to the initial partial bandwidth to receive the paging information or the system information; the scheduling information is carried on a downlink physical control channel PDCCH corresponding to the transmission bandwidth of the broadcast multicast service. For example, when the terminal transmits MBMS data on the MBMS subband, the network side transmits scheduling information of a system message to the terminal, instructing the terminal to switch from the current MBMS subband to the initial BWP to receive the system message.

In one embodiment, the method further comprises: acquiring an identifier of a broadcast multicast service transmitted by a terminal and capability information of a part of bandwidth of the terminal; determining a first partial bandwidth configured for the terminal based on the capability information of the partial bandwidth, wherein the transmission bandwidth of the broadcast multicast service corresponding to the identifier is located in the frequency domain range of the first partial bandwidth; and sending configuration information to the terminal, wherein the configuration information is used for indicating the first part of bandwidth. Here, the MBMS data needs to be transmitted on the MBMS subband, and for the current 5G scenario, the terminal receives the data through BWP, so a partial bandwidth (first partial bandwidth) may be configured for the terminal according to the partial bandwidth capability of the terminal, so that the partial bandwidth covers the MBMS subband in the frequency domain, and thus the terminal may be able to acquire the MBMS data of the network side device.

In this embodiment, the capability information of the partial bandwidth may be a BWP capability restriction indication for indicating how many BWP can be supported by the terminal at the same time, for example, the terminal may use one BWP at the same time under the existing 5G standard, and then the capability information of the partial bandwidth indicates that the terminal supports 1 BWP for the existing terminal, and if the terminal may use 3 BWP at the same time, the capability information of the partial bandwidth indicates that the terminal supports 3 BWP for the terminal or may indicate that the terminal supports multiple BWP (the number of BWP supported is not explicitly indicated).

In one embodiment, before the determining, based on the capability information of the partial bandwidth, a first partial bandwidth configured for the terminal, the method further includes: and determining that the priority of the broadcast multicast service of the terminal is greater than a preset priority threshold. The network side device may determine the corresponding service type according to the MBMS identifier, for example, the TMGI, and determine the priority of the service, and if the priority is high, may continue to configure the first partial bandwidth for the terminal, for example, for the MBMS service of the public security class, if the priority is determined to be greater than the set priority threshold, then continue to configure the first partial bandwidth for the terminal.

In one embodiment, the determining, based on the capability information of the partial bandwidth, a first partial bandwidth configured for the terminal includes: acquiring a second partial bandwidth currently occupied by unicast service of the terminal; if the transmission bandwidth is in the frequency domain range of the second partial bandwidth, determining that the second partial bandwidth is the first partial bandwidth; and if all or part of the frequency domain range of the transmission bandwidth is outside the frequency domain range of the second partial bandwidth, determining a third partial bandwidth as the first partial bandwidth from the partial bandwidths supported by the terminal, wherein the third partial bandwidth is different from the second partial bandwidth.

In this embodiment, by determining whether the frequency domain range of the partial bandwidth occupied by the unicast service performed by the current terminal is within the MBMS subband (including the overlapping situation), if yes, the network side device may not need to reconfigure a new BWP for the terminal, and only needs to keep the partial bandwidth occupied by the unicast service; if not, the network side device may reconfigure a new BWP for the terminal, determine a third partial bandwidth (the frequency domain range covers the MBMS subband) from other BWP supported by the terminal, and issue configuration information of the third partial bandwidth to the terminal.

In one embodiment, the acquiring the identifier of the broadcast multicast service of the terminal and the capability information of the partial bandwidth of the terminal includes: receiving a first message sent by the terminal, wherein the first message comprises an identifier of a broadcast multicast service of the terminal and capability information of the partial bandwidth; or receiving a second message sent by the network equipment of the source cell of the terminal, wherein the second message comprises the identification of the broadcast multicast service of the terminal and the capability information of the partial bandwidth.

The application scenario corresponding to this embodiment may be that, when the terminal establishes RRC connection with the network side device, the receiving terminal receives an RRC connection establishment request message (first message) sent by the terminal to the network side device or receives an RRC message (first message) sent by the terminal after establishing RRC connection with the network side device; in addition, the second message may be sent by the network device of the source cell where the terminal is located when the terminal performs cell handover.

Optionally, the first message is carried in radio link control RRC signaling.

Optionally, the second message is carried in an interface message between a plurality of network side devices, for example in an Xn interface message.

In one embodiment, the method comprises: transmitting first switching indication information to the terminal, wherein the first switching indication information is used for indicating the terminal to switch to the transmission bandwidth for data transmission of the broadcast multicast service; the first switching indication information is carried on a physical downlink control channel PDCCH corresponding to a part of bandwidth occupied by the current unicast service of the terminal.

In this embodiment, the transmission bandwidth occupied by the terminal for transmitting the data of the unicast service is different from the transmission bandwidth occupied by the MBMS data, and the network side sends the first switching indication information, for example, sends the downlink control information (downlink control information, DCI) on the corresponding PDCCH on the PDCCH corresponding to the BWP occupied by the current unicast service, and after receiving the DCI, the terminal may switch from the transmission bandwidth of the unicast service to the transmission bandwidth of the MBMS to receive the MBMS data. Specifically, one bit may be added to DCI information transmitted on the PDCCH for MBMS subband/BWP handover indication.

In one embodiment, the method further comprises: and sending second switching indication information to the terminal, wherein the second switching indication information is used for indicating the terminal to switch to the first part of bandwidth for data transmission of the unicast service, and the second switching indication information is borne on a Physical Downlink Control Channel (PDCCH) corresponding to the transmission bandwidth occupied by the current broadcast multicast service of the terminal.

In this embodiment, the transmission bandwidth occupied by the terminal for transmitting the data of the unicast service is different from the transmission bandwidth occupied by the MBMS data, and the network side sends the second switching indication information, for example, the downlink control information (downlink control information, DCI) on the corresponding PDCCH on the PDCCH corresponding to the transmission bandwidth occupied by the current MBMS, and after receiving the DCI, the terminal may switch from the transmission bandwidth of the MBMS to the transmission bandwidth of the unicast service to receive the data of the unicast service.

It should be noted that, the first handover indication information and the second handover indication information may be issued to the terminal at different moments by the network side according to the MBMS selection specifically used by the terminal in a time division multiplexing manner, so as to schedule the terminal to the MBMS subband and the BWP of the unicast service respectively, and may be used to instruct the terminal to perform the handover between the MBMS service and the unicast service.

In one embodiment, the method further comprises: and after receiving indication information of exiting the broadcast multicast service sent by the terminal, prohibiting the use of a first mode for configuring partial bandwidth for the terminal, wherein the first mode is a mode for configuring partial bandwidth for the terminal according to transmission bandwidth corresponding to the identifier of the broadcast multicast service selected by the terminal.

In this embodiment, after the terminal unilaterally finishes receiving the data of the MBMS, the terminal may notify the network side device, and after the network side device receives the indication information for exiting the broadcast multicast service sent by the terminal, the network side device does not limit the transmission bandwidth corresponding to the identifier of the broadcast multicast service selected by the terminal to configure BWP for the terminal, and the network side device may restore the normal BWP configuration flow.

Fig. 3 is a flow chart of a communication method according to an embodiment of the present invention, as shown in fig. 2, the method may include the following steps:

step 301: the terminal receives the correspondence between the identification of the broadcast-multicast service and the transmission bandwidth for the broadcast-multicast service from the network side device.

In this embodiment, the communication method corresponding to the terminal side may be a specific sub-band for transmitting MBMS data, and specific explanation refers to the detailed description of MBMS subband in the network side, which is not repeated here.

Step 302: and the terminal receives the data of the broadcast multicast service on the transmission bandwidth included in the corresponding relation.

Optionally, when the terminal is in an idle state and a non-active state, the terminal receives the data of the broadcast multicast service from a transmission bandwidth included in the correspondence; or when the terminal is in a connection state and the transmission bandwidth occupied by the unicast service of the terminal and the transmission bandwidth of the broadcast multicast service overlap, simultaneously receiving the data of the unicast service and the data of the broadcast multicast service on the transmission bandwidth; or when the terminal is in a connection state and the transmission bandwidth occupied by the unicast service of the terminal and the transmission bandwidth of the broadcast multicast service are not overlapped, not receiving the data of the unicast service and the data of the broadcast multicast service at the same time.

In this embodiment, when the terminal is in the IDLE state IDLE or INACTIVE state INACTIVE, the terminal may determine an MBMS subband for receiving MBMS data according to a correspondence between an identifier indicating MBMS by the network side and the MBMS subband, and further receive MBMS data on the determined MBMS subband. In another case, when the terminal is in the CONNECTED state, if the BWP and MBMS sub occupied by the unicast service of the terminal overlap, data of the unicast service and data of the MBMS are simultaneously received on the BWP (MBMS subband). In other words, the terminal may receive the unicast service on the BWP occupied by the unicast service for a period of time, and in other words, the terminal may receive the MBMS data on the non-overlapping MBMS subband for a period of time.

In one embodiment, the method further comprises: the terminal receives the paging information or the scheduling information corresponding to the system information sent by the network side equipment on the transmission bandwidth; the terminal switches from the transmission bandwidth to the initial partial bandwidth to receive the paging information or the system information; after the paging information or the system information is determined to be received, the terminal is switched from the initial partial bandwidth to the transmission bandwidth to receive the data of the broadcast multicast service. For example, when the terminal transmits MBMS data on the MBMS subband, the terminal receives scheduling information for transmitting a system message, instructs the terminal to switch from the current MBMS subband to the initial BWP to receive the system message, and after the system message is received, the terminal may switch back to the MBMS subband to continue receiving MBMS data.

In one embodiment, the method further comprises: the terminal sends a first message to network side equipment, wherein the first message comprises an identifier of a broadcast multicast service and capability information of a part of bandwidth of the terminal. Specifically, the identification of the broadcast multicast service reported by the terminal and the specific use of the capability information of the partial bandwidth of the terminal may be understood by referring to the corresponding parts in the foregoing embodiments of the network side, which are not described herein again.

Optionally, the first message is carried in radio link control RRC signaling.

In one embodiment, the method further comprises: receiving configuration information sent by the network side equipment, wherein the configuration information is used for indicating a first part of bandwidth configured for the terminal; wherein, the transmission bandwidth of the broadcast multicast service corresponding to the identifier is located within the frequency domain range of the first partial bandwidth. Specifically, how the network side sets the configuration information may be understood by referring to the corresponding parts in the foregoing embodiments of the network side, which is not described herein again.

In one embodiment, the method comprises: after receiving first switching indication information sent by network side equipment, the terminal switches to the transmission bandwidth to perform data transmission of the broadcast multicast service; the first switching indication information is carried on a physical downlink control channel PDCCH corresponding to a part of bandwidth occupied by the current unicast service of the terminal.

In this embodiment, the transmission bandwidth occupied by the terminal for transmitting the data of the unicast service is different from the transmission bandwidth occupied by the MBMS data, and after receiving the first switching indication information sent by the network side from the PDCCH corresponding to the BWP occupied by the current unicast service, for example, after receiving the DCI on the corresponding PDCCH, the terminal may switch from the transmission bandwidth of the unicast service to the transmission bandwidth of the MBMS to receive the MBMS data.

In one embodiment, the method further comprises: after receiving the second switching indication information sent by the network side equipment, the terminal switches to the transmission bandwidth of the unicast service to perform data transmission of the unicast service; the second switching indication information is carried on a physical downlink control channel PDCCH corresponding to a transmission bandwidth occupied by the current broadcast multicast service of the terminal.

In this embodiment, the transmission bandwidth occupied by the terminal for transmitting the data of the unicast service is different from the transmission bandwidth occupied by the terminal for transmitting the MBMS data, and after receiving the first switching indication information sent by the network side, for example, after receiving DCI on the corresponding PDCCH, the terminal may switch from the transmission bandwidth of the MBMS to the transmission bandwidth of the unicast service to receive the data of the unicast service.

In one embodiment, the method further comprises: the terminal sends indication information for exiting the broadcast multicast service, wherein the indication information is used for indicating the network side equipment to not limit to the mode of configuring partial bandwidth for the terminal by using a first mode, and the first mode is a mode of configuring partial bandwidth for the terminal according to a transmission bandwidth corresponding to the identifier of the broadcast multicast service selected by the terminal.

The communication method provided by the embodiment of the application is further described through a specific embodiment.

Example 1:

fig. 4 is an interactive flow chart of a communication method according to an embodiment of the present application, and the content shown in fig. 4 includes a method for receiving MBMS data by a terminal in an idle state or a non-active state, specifically implementing the steps of:

step S401: after the terminal resides in the cell, the mapping relationship list of the TMGI/SESSION ID and the MBMS subband of the MBMS service can be obtained from the system information by reading the system message.

Step S402: the terminal stores a mapping relation list of a TMGI/SESSION ID and an MBMS subband of the MBMS service. When a user initiates an MBMS service, the terminal may begin receiving the MBMS service on the MBMS subband.

Step S403: when scheduling of paging or system information is received on the PDCCH of the MBMS subband, the terminal may switch to receiving paging and system information on the initial BWP.

Step S404: after receiving paging and system information on the initial BWP, the terminal may switch back to MBMS sub to continue receiving MBMS data.

Example 2:

fig. 5 is an interactive flow chart of a communication method according to an embodiment of the present invention, where the content illustrated in fig. 5 includes a method for using an MBMS service by a terminal when the terminal only supporting a single BWP initiates the MBMS service and the currently configured BWP and MBMS sub do not overlap, and the specific implementation steps are as follows:

step S501: the terminal is in a CONNECTED state rrc_connected, and the current BWP does not include an MBMS sub corresponding to the MBMS.

Step S502: the terminal user triggers an MBMS service application, and then the terminal transmits an RRC message to transmit an identity (TMGI/SESSION ID) and BWP capability information (onebwp indication, an indication that only one BWP is supported) of the MBMS selected by the terminal to the network side.

Step S503: the network side decides the priority of the MBMS service applied by the terminal according to the TMGI indicated by the terminal, for the MBMS service with high priority, the network side re-distributes the terminal to the BWP overlapped with the MBMS sub band, and for the unimportant MBMS service type, the network may refuse the request of the terminal.

Step S504: the terminal starts to receive MBMS services and other unicast services on the new BWP.

Example 3:

fig. 6 is an interaction flow diagram of a communication method according to an embodiment of the present invention, where the content illustrated in fig. 6 includes a method for using an MBMS service by a terminal when a currently configured BWP and an MBMS sub-band overlap when the terminal only supporting a single BWP initiates the MBMS service in an RRC connected state, and the specific steps are as follows:

step S601: the terminal is in a connected state and the current BWP is an MBMS sub-band of the MBMS service selected by the terminal.

Step S602: the terminal user triggers the MBMS service and the terminal starts to use the MBMS service. The simultaneous transmission of the RRC message informs the network side of the TMGI/SESSION ID and BWP capability information (onebwp indication, an indication that only one BWP is supported) of the MBMS service selected by the terminal.

Step S603: the network side can decide the priority of the MBMS service applied by the terminal according to the TMGI indicated by the terminal, and for the terminal using the MBMS service with high priority, the network side keeps the terminal using the BWP overlapped with the MBMS sub of the current MBMS service as much as possible.

Example 4:

fig. 7 is an interactive flow chart of a communication method according to an embodiment of the present invention, where the content shown in fig. 7 includes a method for notifying a network side after a terminal supporting only a single BWP enters an rrc_connected state after using an MBMS service in an RRC IDLE state rrc_idle/rrc_inactive state, and the specific steps are as follows:

step S701: in the rrc_idle/rrc_inactive state, the terminal triggers the MBMS service, and the terminal directly performs MBMS data reception on the MBMS BWP.

Step S702: when the terminal triggers RRC connection establishment, TMGI/SESSION ID and BWP capability information (indication that only one BWP is supported) of the MBMS service used by the terminal are transmitted to the network side in an RRC connection establishment request message sent by the terminal to the network side.

Step S703: the network side judges the priority of the MBMS service applied by the terminal according to the TMGI indicated by the terminal, and for the terminal using the MBMS service with high priority, the network side keeps the terminal using BWP overlapped with the MBMS sub of the current MBMS service as much as possible.

Example 5:

fig. 8 is an interactive flow chart of a communication method according to an embodiment of the present invention, and the content shown in fig. 8 includes a method for receiving MBMS subband and unicast service BWP by a network side in a time division manner, specifically including the following steps:

Step S801: in the rrc_idle/rrc_inactive state, the terminal triggers MBMS data reception, and the terminal directly performs MBMS data reception on the MBMS BWP.

Step S802: when the terminal triggers RRC connection establishment, TMGI/SESSION ID and BWP capability information (indication that only one BWP is supported) of the MBMS service used by the terminal are transmitted to the network side in an RRC connection establishment request message sent by the terminal to the network side.

Step S803: and the network dispatches the UE to the MBMS subband or the unicast service BWP at different moments in a time-sharing multiplexing mode according to the TMGI indicated by the terminal. The specific mode can adopt DCI information on PDCCH to carry out switching scheduling between MBMS subband and unicast service BWP:

at time 1, assuming that the terminal is listening to the PDCCH using the Cell-radio network temporary identity (Cell-radio network temporary identifier, C-RNTI), and the network configuration terminal receives the MBMS at the next time, the MBMS subband is indicated in the DCI on the PDCCH corresponding to the C-RNTI, and a unicast/MBMS handover indication (corresponding to the first handover indication information of the foregoing embodiment, for example, named "MBMS subband/BWP switch indication"). And the terminal starts to monitor the PDCCH corresponding to the G-RNTI on the indicated MBMS subband, and then receives the MBMS data.

At time 2, when the network switches the terminal receiving the MBMS service to receive the normal unicast service on the unicast BWP, the unicast BWP and the unicast/MBMS switch indication (corresponding to the second switch indication information of the foregoing embodiment) are indicated in the DCI on the PDCCH corresponding to the group-radio network temporary identifier, G-RNTI, and the terminal starts to monitor only the PDCCH corresponding to the C-RNTI on the unicast BWP, thereby receiving the data reception of the unicast service.

Example 6:

fig. 9 is an interactive flow chart of a communication method according to an embodiment of the present invention, and the content shown in fig. 9 includes a method for a terminal supporting only a single BWP to exit an MBMS service in an rrc_connected state, and the terminal informs a network of MBMS service exit status information, which includes the following specific steps:

step S901: after the terminal side unilaterally finishes receiving the MBMS data, an RRC message is sent to notify the network side of MBMS service exit status information (MBMS End Indication, corresponding to the Indication information for exiting the broadcast multicast service in the foregoing embodiment).

Step S902: the network side saves the terminal MBMS service status information and resumes the normal BWP reconfiguration procedure without restricting the reconfiguration of the terminal to the BWP covering the MBMS subband.

Example 7:

fig. 10 is a schematic interaction flow chart of a communication method according to an embodiment of the present application, where the content shown in fig. 10 includes a method in which, when a terminal performs cell handover in a CONNECTED state, a source cell sends a TMGI/SESSION ID and BWP capability information (indication that only one BWP is supported) of an MBMS service selected by the terminal to a target cell, and the target cell continues to configure the BWP covering the MBMS subband for the terminal, which specifically includes the following steps:

step S1001: in the RRC connected state, the MBMS service is in progress.

Step S1002: when the cell handover is triggered, if the target cell supports the current MBMS service, the source cell transmits a TMGI/SESSION ID and BWP capability information (onebwpindirection) of the MBMS service selected by the terminal to the target cell through the Xn interface.

Step S1003: the target cell configures a BWP covering the MBMS subband for terminals using the high priority MBMS and includes it in an Xn message transmitted to the serving cell.

Step S1004: the source cell sends the configuration information of the target cell to the terminal, and starts the switching flow.

Based on the same inventive concept, the embodiment of the application also provides a communication device. Since the communication device is the communication device in the method according to the embodiment of the present application, and the principle of the communication device for solving the problem is similar to that of the method, the implementation of the communication device may refer to the implementation of the method, and the repetition is omitted.

As shown in fig. 11, a communication device according to an embodiment of the present application includes:

a processor 11100, a memory 11101, and a transceiver 11102.

The processor 11100 is responsible for managing the bus architecture and general processing, and the memory 11101 may store data used by the processor 11100 in performing operations. The transceiver 11102 is configured to receive and transmit data under the control of the processor 11100.

A bus architecture may comprise any number of interconnecting buses and bridges, and in particular, one or more of the processors 11100 represented by the processor 11100 and various circuits of the memory represented by the memory 11101, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The processor 11100 is responsible for managing the bus architecture and general processing, and the memory 11101 may store data used by the processor 11100 in performing operations.

The flow disclosed in the embodiment of the application can be applied to the processor 11100 or implemented by the processor 11100. In implementation, the steps of the signal processing flow may be performed by integrated logic circuitry of hardware in the processor 11100 or instructions in the form of software. The processor 11100 may be a general purpose processor 11100, a digital signal processor 11100, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. The general purpose processor 11100 can be a microprocessor 11100 or any conventional processor 11100 or the like. The steps of a method disclosed in connection with an embodiment of the present application may be embodied directly in hardware processor 11100 for execution, or in a combination of hardware and software modules in processor 11100 for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in the memory 11101, and the processor 11100 reads the information in the memory 11101, and completes the steps of the signal processing flow in combination with the hardware thereof.

Wherein the processor 11100 is configured to read a program in the memory 11101 and execute the following processes:

Optionally, the processor 11100 is further configured to perform the following procedures:

Optionally, the identifier of the broadcast-multicast service at least includes a temporary mobile group identifier TMGI, or the identifier of the broadcast-multicast service at least includes a temporary mobile group identifier TMGI and a SESSION identity identifier ID.

Optionally, the transmission bandwidth of the broadcast-multicast service includes a partial bandwidth.

Optionally, the correspondence is carried in a system message or a control message of the multicast broadcast service.

Optionally, the determining, based on the capability information of the partial bandwidth, the first partial bandwidth configured for the terminal includes: acquiring a second partial bandwidth currently occupied by unicast service of the terminal;

Optionally, the acquiring the identifier of the broadcast multicast service of the terminal and the capability information of the partial bandwidth of the terminal includes:

Optionally, the first message is carried in radio link control RRC signaling.

Optionally, the second message is carried in an interface message between a plurality of network side devices.

Optionally, the processor 11100 is configured to perform the following processes:

Optionally, the processor 11100 is configured to perform the following processes: and sending second switching indication information to the terminal, wherein the second switching indication information is used for indicating the terminal to switch to the first part of bandwidth for data transmission of the unicast service, and the second switching indication information is borne on a Physical Downlink Control Channel (PDCCH) corresponding to the transmission bandwidth occupied by the current broadcast multicast service of the terminal.

Based on the same inventive concept, another communication device is also provided in the embodiments of the present application, and because the device is the device in the method in the embodiments of the present application, and the principle of the device for solving the problem is similar to that of the method, the implementation of the device may refer to the implementation of the method, and the repetition is omitted.

As shown in fig. 12, an embodiment of the present application further provides a communication apparatus, including:

a first sending module 1201, configured to send, to a terminal, a correspondence between an identifier of a broadcast-multicast service and a transmission bandwidth for the broadcast-multicast service;

a second sending module 1202, configured to send data of a broadcast multicast service on a transmission bandwidth included in the correspondence.

Optionally, the apparatus further comprises a third sending module 1203,

a third sending module 1203, configured to send scheduling information corresponding to paging information or system information, where the scheduling information is used to instruct the terminal to switch from the transmission bandwidth to an initial partial bandwidth and receive the paging information or the system information;

Optionally, the apparatus further includes:

an obtaining module 1204, configured to obtain an identifier of a broadcast multicast service sent by a terminal and capability information of a part of bandwidth of the terminal;

a first determining module 1205, configured to determine, based on the capability information of the partial bandwidths, a first partial bandwidth configured for the terminal, where a transmission bandwidth of the broadcast multicast service corresponding to the identifier is located in a frequency domain range of the first partial bandwidth;

a fourth sending module 1206, configured to send configuration information to the terminal, where the configuration information is used to indicate the first portion of bandwidth.

Optionally, the apparatus further includes:

A second determining module 1207, configured to determine that the priority of the broadcast-multicast service of the terminal is greater than a preset priority threshold.

Optionally, the first determining module 1205 is configured to obtain a second portion of bandwidth currently occupied by the unicast service of the terminal;

Optionally, the acquiring module 1204 is configured to receive a first message sent by the terminal, where the first message includes an identifier of a broadcast multicast service of the terminal and capability information of the partial bandwidth; or alternatively, the process may be performed,

Optionally, the first message is carried in radio link control RRC signaling.

Optionally, the apparatus further includes:

a fifth sending module 1205, configured to send first switching indication information to the terminal, where the first switching indication information is used to instruct the terminal to switch to the transmission bandwidth to perform data transmission of the broadcast multicast service;

Optionally, the apparatus further includes:

a sixth sending module 1206, configured to send second handover indication information to the terminal, where the second handover indication information is used to instruct the terminal to switch to the first bandwidth for data transmission of the unicast service, and the second handover indication information is carried on a physical downlink control channel PDCCH corresponding to a transmission bandwidth occupied by the current broadcast multicast service of the terminal.

Optionally, the apparatus further includes:

and a prohibition module 1207, configured to prohibit the use of a first mode to configure a partial bandwidth for the terminal after receiving the indication information for exiting the broadcast multicast service sent by the terminal, where the first mode is a mode in which the transmission bandwidth corresponding to the identifier of the broadcast multicast service selected by the terminal is configured to be the partial bandwidth for the terminal.

Based on the same inventive concept, the embodiments of the present application further provide another communication device, and since the device is the device in the method in the embodiments of the present application and the principle of the device for solving the problem is similar to that of the method, the implementation of the device may refer to the implementation of the method, and the repetition is omitted.

As shown in fig. 13, the apparatus includes:

a processor 13100, a memory 13101, and a transceiver 13102.

The processor 13100 is responsible for managing the bus architecture and general processing, and the memory 13101 may store data used by the processor 13100 in performing operations. The transceiver 13102 is configured to receive and transmit data under the control of the processor 13100.

The bus architecture may include any number of interconnecting buses and bridges, and in particular, one or more of the processors 13100, represented by the processor 13100, and the various circuits of the memory, represented by the memory 13101, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The processor 13100 is responsible for managing the bus architecture and general processing, and the memory 13101 may store data used by the processor 13100 in performing operations.

The flow disclosed in the embodiments of the present invention may be applied to the processor 13100 or implemented by the processor 13100. In implementation, the steps of the signal processing flow may be performed by integrated logic circuitry in hardware or instructions in software in processor 13100. The processor 13100 may be a general purpose processor 13100, a digital signal processor 13100, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the invention. The general purpose processor 13100 may be the microprocessor 13100 or any conventional processor 13100 or the like. The steps of a method disclosed in connection with an embodiment of the present invention may be embodied directly in hardware executed by the processor 13100, or in a combination of hardware and software modules executed by the processor 13100. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in the memory 13101, and the processor 13100 reads information in the memory 13101 and performs steps of a signal processing flow in combination with its hardware.

Wherein the processor 13100 is configured to read a program in the memory 13101 and execute the following procedures:

The terminal receiving the data of the broadcast multicast service on the transmission bandwidth included in the correspondence, including:

Optionally, the processor 13100 is further configured to perform the following:

Optionally, the first message is carried in radio link control RRC signaling.

Optionally, the processor 13100 is further configured to perform the following:

As shown in fig. 14, an embodiment of the present application further provides a communication apparatus, including:

A first receiving module 1401, configured to receive, by a terminal, a correspondence between an identifier of a broadcast-multicast service and a transmission bandwidth for the broadcast-multicast service from a network side device;

a second receiving module 1402, configured to receive, by the terminal, data of the broadcast-multicast service on a transmission bandwidth included in the correspondence.

Optionally, the first receiving module 1401 is configured to receive, when the terminal is in an idle state and an inactive state, data of the broadcast-multicast service from a transmission bandwidth included in the correspondence; or alternatively, the first and second heat exchangers may be,

Optionally, the first receiving module 1401 is further configured to receive, on the transmission bandwidth, scheduling information corresponding to paging information or system information sent by the network side device by using the terminal;

Optionally, the apparatus further includes:

a first sending module 1403, configured to send, by the terminal, a first message to a network side device, where the first message includes an identifier of a broadcast multicast service and capability information of a part of a bandwidth of the terminal.

Optionally, the first message is carried in radio link control RRC signaling.

Optionally, the apparatus includes:

a first switching module 1404, configured to switch, when receiving first switching indication information sent by a network side device, the terminal to the transmission bandwidth to perform data transmission of the broadcast multicast service;

Optionally, the apparatus further includes:

a second switching module 1405, configured to switch, when receiving second switching indication information sent by the network side device, the terminal to a transmission bandwidth of the unicast service to perform data transmission of the unicast service;

Optionally, the apparatus further includes:

a second sending module 1406, configured to send, by the terminal, indication information for exiting the broadcast-multicast service, where the indication information is used to instruct the network device to configure a partial bandwidth for the terminal without limitation to use a first mode, where the first mode is a mode in which a partial bandwidth is configured for the terminal according to a transmission bandwidth corresponding to an identifier of the broadcast-multicast service selected by the terminal.

The embodiment of the present application also provides a computer readable non-volatile storage medium including program code for causing a computing terminal to execute the steps of the communication method of the embodiment of the present application described above when the program code is run on the computing terminal.

The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, and/or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.

Accordingly, the present application may be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Still further, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of the present application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method of communication, the method comprising:

the method comprises the steps that network side equipment sends a corresponding relation between an identifier of a broadcast multicast service and a transmission bandwidth for the broadcast multicast service to a terminal, wherein the transmission bandwidth comprises a part of bandwidth of the terminal;

the network side equipment sends data of the broadcast multicast service on a transmission bandwidth included in the corresponding relation, wherein part or all of the transmission bandwidth is positioned in a frequency domain range of a second partial bandwidth, and the second partial bandwidth is used for sending data of the unicast service to the terminal; or, part or all of the transmission bandwidth is located in a range of a third partial bandwidth, and the third partial bandwidth is different from the second partial bandwidth;

2. The method according to claim 1, wherein the method further comprises:

3. The method of claim 1, wherein the identification of the broadcast-multicast service comprises at least a temporary mobile group identity, TMGI, or wherein the identification of the broadcast-multicast service comprises at least a temporary mobile group identity, TMGI, and a session identity, SESSIONID.

4. The method of claim 1, wherein the correspondence is carried in a system message or a control message of the broadcast multicast service.

5. The method according to claim 1, wherein the method further comprises:

6. The method of claim 5, wherein prior to determining the first partial bandwidth configured for the terminal based on the partial bandwidth capability information, the method further comprises:

7. The method of claim 5, wherein the determining the first partial bandwidth configured for the terminal based on the capability information of the partial bandwidth comprises:

and if all or part of the frequency domain range of the transmission bandwidth is outside the frequency domain range of the second partial bandwidth, determining a third partial bandwidth as the first partial bandwidth from the partial bandwidths supported by the terminal.

8. The method according to claim 5, wherein the acquiring the identity of the broadcast-multicast service of the terminal and the capability information of the partial bandwidth of the terminal comprises:

9. The method of claim 8, wherein the first message is carried in radio link control, RRC, signaling.

10. The method of claim 8, wherein the second message is carried in an interface message between a plurality of network side devices.

11. The method according to any one of claims 1-10, characterized in that the method comprises:

12. The method according to any one of claims 1-10, further comprising:

13. A method of communication, the method comprising:

the method comprises the steps that a terminal receives a corresponding relation between an identifier of a broadcast multicast service and a transmission bandwidth for the broadcast multicast service from network side equipment, wherein the transmission bandwidth comprises a part of bandwidth of the terminal;

the terminal receives the data of the broadcast multicast service on a transmission bandwidth included in the corresponding relation, wherein part or all of the transmission bandwidth is positioned in a frequency domain range of a second partial bandwidth, and the second partial bandwidth is used for receiving the data of the unicast service from the network side equipment;

14. The method of claim 13, wherein the terminal receiving the data of the broadcast-multicast service over the transmission bandwidth included in the correspondence comprises:

15. The method of claim 13, wherein the method further comprises:

16. The method of claim 13, wherein the identification of the broadcast-multicast service comprises at least a temporary mobile group identity, TMGI, or wherein the identification of the broadcast-multicast service comprises at least a temporary mobile group identity, TMGI, and a session identity, SESSIONID.

17. The method of claim 13, wherein the correspondence is carried in a system message or a control message of the broadcast multicast service.

18. The method of claim 13, wherein the method further comprises:

19. The method of claim 18, wherein the first message is carried in radio link control, RRC, signaling.

20. The method of claim 13, wherein the method further comprises:

21. The method according to any one of claims 13-20, characterized in that the method comprises:

22. The method according to any one of claims 13-20, further comprising:

23. A communication device, comprising:

a first sending module, configured to send, to a terminal, a correspondence between an identifier of a broadcast multicast service and a transmission bandwidth for the broadcast multicast service, where the transmission bandwidth includes a partial bandwidth of the terminal;

A second sending module, configured to send data of a broadcast multicast service on a transmission bandwidth included in the correspondence, where part or all of the transmission bandwidth is located in a frequency domain range of a second partial bandwidth, and the second partial bandwidth is used to send data of a unicast service to the terminal;

24. The apparatus of claim 23, further comprising a third transmission module,

25. The apparatus of claim 23, wherein the identity of the broadcast-multicast service comprises at least a temporary mobile group identity, TMGI, or wherein the identity of the broadcast-multicast service comprises at least a temporary mobile group identity, TMGI, and a session identity, SESSIONID.

26. The apparatus of claim 23, wherein the correspondence is carried in a system message or a control message of the broadcast-multicast service.

27. The apparatus of claim 23, wherein the apparatus further comprises:

28. The apparatus of claim 23, wherein the apparatus further comprises:

29. The apparatus of claim 27, wherein the first determining module is configured to obtain a second portion of bandwidth currently occupied by unicast services of the terminal;

30. The apparatus of claim 27, wherein the acquisition module is configured to receive a first message sent by the terminal, the first message including an identification of a broadcast multicast service of the terminal and capability information of the partial bandwidth; or alternatively, the process may be performed,

31. The apparatus of claim 30, wherein the first message is carried in radio link control, RRC, signaling.

32. The apparatus of claim 30, wherein the second message is carried in an interface message between a plurality of network side devices.

33. The apparatus according to any one of claims 23-32, further comprising:

34. The apparatus according to any one of claims 23-32, further comprising:

35. A communication device, comprising:

the first receiving module is used for receiving the corresponding relation between the identifier of the broadcast multicast service and the transmission bandwidth used for the broadcast multicast service from the network side equipment by the terminal, wherein the transmission bandwidth comprises a part of the bandwidth of the terminal;

the second receiving module is configured to receive, by the terminal, data of the broadcast-multicast service on a transmission bandwidth included in the correspondence, where part or all of the transmission bandwidth is located in a frequency domain range of a second partial bandwidth, and the second partial bandwidth is used to send, to the terminal, data of the unicast service;

36. The apparatus of claim 35, wherein the first receiving module is configured to receive, by the terminal, data of the broadcast-multicast service from a transmission bandwidth included in the correspondence when the terminal is in an idle state and an inactive state; or alternatively, the first and second heat exchangers may be,

37. The apparatus of claim 35, wherein the first receiving module is further configured to receive, by the terminal, scheduling information corresponding to paging information or system information sent by the network side device over the transmission bandwidth;

38. The apparatus of claim 35, wherein the identity of the broadcast-multicast service comprises at least a Temporary Mobile Group Identity (TMGI) or the identity of the broadcast-multicast service comprises at least a Temporary Mobile Group Identity (TMGI) and a session identity (session id).

39. The apparatus of claim 35, wherein the correspondence is carried in a system message or a control message of the broadcast-multicast service.

40. The apparatus as recited in claim 35, further comprising:

41. The apparatus of claim 40, wherein the first message is carried in radio link control, RRC, signaling.

42. The apparatus as recited in claim 35, further comprising:

and the third receiving module is used for receiving configuration information sent by the network side equipment, wherein the configuration information is used for indicating a first part of bandwidth configured for the terminal.

43. The apparatus of any one of claims 35-42, comprising:

44. The apparatus of any one of claims 35-42, further comprising:

45. A communications device comprising a processor and a memory, wherein the memory is configured to store computer executable instructions that, when executed by the processor, cause the device to perform the method of any of claims 1-12 or claims 13-22.

46. A storage medium having stored thereon a computer program or instructions which, when executed, cause a processor to perform the method of any of claims 1-12 or claims 13-22.