# US 11,452,069 B2 · Communication method and communications device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,452,069 B2 - Document ID: US11452069B2 - Status: Granted - Kind: B2 - Application number: 16/886,949 - Filed: 2020-05-29 - Published: 2020-09-17 - Granted: 2022-09-20 - Earliest claimed: 2017-11-30 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Xiaosong Zhu; Yiling Wu - Web page: https://patentgrep.com/patent/US11452069B2 ## CPC - H04W 68/02: Arrangements for increasing efficiency of notification or paging channel - H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services - H04W 68/005: {Transmission of information for alerting of incoming communication} - H04W 76/11: Allocation or use of connection identifiers - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract This application provides a communication method and a communications device. The method includes: receiving, by an access network device from a core network device, a first group identifier of a first terminal group and an identifier of a terminal included in the first terminal group; and sending, by the access network device, the first group identifier and a second group identifier of the first terminal group to the terminal included in the first terminal group. The first group identifier and the second group identifier are used to indicate a paging occasion for the first terminal group, and a paging message for the first terminal group is transmitted on a first physical channel. The technical solutions in the embodiments of this application can improve system efficiency. ## Claims ### Claim 1 A communication method, comprising: receiving, by an access network device from a core network device, a first group identifier of a first terminal group and an identifier of a terminal comprised in the first terminal group; and sending, by the access network device, the first group identifier and a second group identifier of the first terminal group to the terminal comprised in the first terminal group; wherein the first group identifier and the second group identifier are used to indicate a paging occasion for the first terminal group, and a paging message for the first terminal group is transmitted on a first physical channel, and wherein the paging occasion is a subframe that is in a paging frame and that carries a paging information, and the paging frame is a radio frame that carries the paging message, and wherein the paging occasion for the first terminal group is used to send the paging message for the first terminal group in multicast mode. ### Claim 2 (depends on 1) The method according to claim 1, further comprising: receiving, by the access network device, the second group identifier from the core network device. ### Claim 3 (depends on 1) The method according to claim 1, further comprising: allocating, by the access network device, the second group identifier to the first terminal group. ### Claim 4 (depends on 1) The method according to claim 1, further comprising: sending, by the access network device, an identifier of the first physical channel to the terminal comprised in the first terminal group. ### Claim 5 (depends on 1) The method according to claim 1, further comprising: broadcasting, by the access network device, an association relationship between the first terminal group and the first physical channel. ### Claim 6 An access network device, comprising: a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to: receive from a core network device, a first group identifier of a first terminal group and an identifier of a terminal comprised in the first terminal group; and send the first group identifier and a second group identifier of the first terminal group to the terminal comprised in the first terminal group; wherein the first group identifier and the second group identifier are used to indicate a paging occasion for the first terminal group, and a paging message for the first terminal group is transmitted on a first physical channel, wherein the paging occasion is a subframe that is in a paging frame and that carries a paging information, and the paging frame is a radio frame that carries the paging message, and wherein the paging occasion for the first terminal group is used to send the paging message for the first terminal group in multicast mode. ### Claim 7 (depends on 6) The access network device according to claim 6, wherein the programming further includes instructions to: receive the second group identifier from the core network device. ### Claim 8 (depends on 6) The access network device according to claim 6, wherein the programming further includes instructions to: allocate the second group identifier to the first terminal group. ### Claim 9 (depends on 6) The access network device according to claim 6, wherein the programming further includes instructions to: send an identifier of the first physical channel to the terminal comprised in the first terminal group. ### Claim 10 (depends on 6) The access network device according to claim 6, wherein the programming further includes instructions to: broadcast an association relationship between the first terminal group and the first physical channel. ### Claim 11 A communication method, comprising: receiving, by a terminal, a first group identifier and a second group identifier of a first terminal group that are sent by an access network device or a core network device, wherein the terminal is a terminal comprised in the first terminal group; wherein the first group identifier and the second group identifier are used to indicate a paging occasion for the first terminal group, and a paging message for the first terminal group is transmitted on a first physical channel, and wherein the paging occasion is a subframe that is in a paging frame and that carries a paging information, and the paging frame is a radio frame that carries the paging message, and wherein the paging occasion for the first terminal group is used to send the paging message for the first terminal group in multicast mode. ### Claim 12 (depends on 11) The method according to claim 11, wherein the first group identifier is allocated by the core network device; and the second group identifier is allocated by the core network device or the access network device. ### Claim 13 (depends on 11) The method according to claim 11, wherein the terminal receives an identifier that is of the first physical channel and that is sent by the core network device or the access network device; or the first physical channel is agreed on in advance; or an association relationship between the first terminal group and the first physical channel is broadcast in an area served by the access network device. ### Claim 14 (depends on 11) The method according to claim 11, further comprising: receiving, by the terminal, a priority that is of the first terminal group and that is sent by the core network device; and receiving, by the terminal, the priority sent by the access network device or the priority broadcast in an area served by the access network device; wherein the priority is used to determine whether the paging message for the first terminal group is preferentially transmitted on the paging occasion. ### Claim 15 (depends on 11) The method according to claim 11, wherein the method further comprises: receiving, by the terminal, a modulation and coding scheme that is used for the paging message for the first terminal group and that is sent by the core network device or the access network device, or receiving, by the terminal, a modulation and coding scheme that is used for the paging message for the first terminal group and that is broadcast in an area served by the access network device. ### Claim 16 A terminal, comprising: a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to: receive a first group identifier and a second group identifier of a first terminal group that are sent by an access network device or a core network device, wherein a terminal is a terminal comprised in the first terminal group; wherein the first group identifier and the second group identifier are used to indicate a paging occasion for the first terminal group, and a paging message for the first terminal group is transmitted on a first physical channel, and wherein the paging occasion is a subframe that is in a paging frame and that carries a paging information, and the paging frame is a radio frame that carries the paging message, and wherein the paging occasion for the first terminal group is used to send the paging message for the first terminal group in multicast mode. ### Claim 17 (depends on 16) The terminal according to claim 16, wherein the first group identifier is allocated by the core network device; and the second group identifier is allocated by the core network device or the access network device. ### Claim 18 (depends on 16) The terminal according to claim 16, wherein the programming further includes instructions to: receive an identifier that is of the first physical channel and that is sent by the core network device or the access network device; or the first physical channel is agreed on in advance; or an association relationship between the first terminal group and the first physical channel is broadcast in an area served by the access network device. ### Claim 19 (depends on 16) The terminal according to claim 16, wherein the programming further includes instructions to: receive a priority that is of the first terminal group and that is sent by the core network device; and receive the priority sent by the access network device or the priority broadcast in an area served by the access network device; wherein the priority is used to determine whether the paging message for the first terminal group is preferentially transmitted on the paging occasion. ### Claim 20 (depends on 16) The terminal according to claim 16, wherein the programming further includes instructions to: receive a modulation and coding scheme that is used for the paging message for the first terminal group and that is sent by the core network device or the access network device, or receive a modulation and coding scheme that is used for the paging message for the first terminal group and that is broadcast in an area served by the access network device.