# US 2014/0192769 A1 · Joint scheduling method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192769 A1 - Document ID: US20140192769A1 - Status: Published application - Kind: A1 - Application number: 14/199,491 - Filed: 2014-03-06 - Published: 2014-07-10 - Earliest claimed: 2011-09-09 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Jini WEN - Web page: https://patentgrep.com/patent/US20140192769A1 ## CPC - H04L 5/0005: {Time-frequency} - H04W 72/1221: {based on age of data to be sent} - H04W 74/04: Scheduled access (hybrid access H04W74/02) - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Embodiments of the present invention provide a joint scheduling method and apparatus. The method of the present invention is as follows: judging whether a CoMP user equipment exists in user equipments that wait to be scheduled in a sector that participates in joint scheduling; scheduling, if a CoMP user equipment exists in user equipments that wait to be scheduled, the CoMP user equipment that waits to be scheduled and assigning CoMP frequency band resources to the scheduled CoMP user equipment according to a size of frequency band resources required by the scheduled CoMP user equipment, where the CoMP frequency band resources are partial frequency band resources allocated from frequency band resources of the sector that participates in joint scheduling and are preferentially used by the CoMP user equipment. Embodiments of the present invention mainly apply to a joint scheduling process in a wireless communications system. ## Claims ### Claim 1 A joint scheduling method, comprising: judging whether a Coordinated Multiple Points (CoMP) user equipment exists in user equipments that wait to be scheduled in a sector that participates in joint scheduling, wherein the CoMP user equipment is a user equipment that meets a CoMP transmission condition; and if a CoMP user equipment exists in the user equipments that wait to be scheduled, scheduling the CoMP user equipment that waits to be scheduled and assigning CoMP frequency band resources to the scheduled CoMP user equipment according to a size of frequency band resources required by the scheduled CoMP user equipment, wherein the CoMP frequency band resources are partial frequency band resources allocated from frequency band resources of the sector that participates in joint scheduling and are preferentially used by the CoMP user equipment. ### Claim 2 (depends on 1) The joint scheduling method according to claim 1, after the judging whether a Coordinated Multiple Points CoMP user equipment exists in user equipments that wait to be scheduled in a sector that participates in joint scheduling, further comprising: if all user equipments that wait to be scheduled are non-CoMP user equipments, obtain a Proportionally Fair (PF) priority corresponding to each user equipment that waits to be scheduled in the sector that participates in joint scheduling and schedule the user equipments that wait to be scheduled in descending PF priority. ### Claim 3 (depends on 1) The joint scheduling method according to claim 1, before the judging whether a Coordinated Multiple Points CoMP user equipment exists in user equipments that wait to be scheduled in a sector that participates in joint scheduling, further comprising: determining a sector that participates in class one scheduling and obtain a PF priority corresponding to each user equipment that waits to be scheduled in the sector that participates in the class one scheduling; and performing the class one scheduling on the user equipments that wait to be scheduled, wherein the class one scheduling indicates that user equipments are scheduled in descending PF priority and the user equipments scheduled in the class one scheduling are not allowed to share same frequency band resources. ### Claim 4 (depends on 3) The joint scheduling method according to claim 3, wherein the scheduling the CoMP user equipment that waits to be scheduled and assigning CoMP frequency band resources to the scheduled CoMP user equipment according to a size of frequency band resources required by the scheduled CoMP user equipment comprises: judging whether a CoMP user equipment exists in user equipments scheduled in the class one scheduling; and scheduling, if a CoMP user equipment exists in user equipments scheduled in the class one scheduling, the CoMP user equipment that waits to be scheduled and allowing the CoMP user equipment that waits to be scheduled to share same frequency band resources with the CoMP user equipment scheduled in the class one scheduling, wherein: the CoMP frequency band resources are frequency band resources occupied by the CoMP user equipment scheduled in the class one scheduling. ### Claim 5 (depends on 4) The joint scheduling method according to claim 4, after the judging whether a CoMP user equipment exists in user equipments scheduled in the class one scheduling, further comprising: scheduling, if no CoMP user equipment exists in user equipments scheduled in the class one scheduling, the user equipments that wait to be scheduled in descending PF priority; or scheduling, if no CoMP user equipment exists in user equipments scheduled in the class one scheduling, the user equipments that wait to be scheduled and assigning the CoMP frequency band resources to the scheduled CoMP user equipment according to the size of frequency band resources required by the scheduled CoMP user equipment. ### Claim 6 (depends on 1) The joint scheduling method according to claim 1, before the judging whether a Coordinated Multiple Points CoMP user equipment exists in user equipments that wait to be scheduled in a sector that participates in joint scheduling, further comprising: judging whether a user equipment that waits to be scheduled exists in the sector that participates in joint scheduling; and executing, if a user equipment that waits to be scheduled exists in the sector that participates in joint scheduling, the judging whether a Coordinated Multiple Points CoMP user equipment exists in the user equipments that wait to be scheduled. ### Claim 7 (depends on 1) The joint scheduling method according to claim 1, before the judging whether a user equipment that waits to be scheduled exists in the sector that participates in joint scheduling, further comprising: judging whether unoccupied frequency band resources exist in the sector that participates in joint scheduling; and continuing to execute the judging whether a user equipment that waits to be scheduled exists in the sector that participates in joint scheduling if the unoccupied frequency band resources exist in the sector that participates in joint scheduling. ### Claim 8 (depends on 7) The joint scheduling method according to claim 7, before the judging whether a Coordinated Multiple Points CoMP user equipment exists in the user equipments that wait to be scheduled or before the judging whether a user equipment that waits to be scheduled exists in the sector that participates in joint scheduling, further comprising: allocating CoMP frequency band resources from all frequency band resources in advance for the CoMP user equipment that waits to be scheduled to occupy the CoMP frequency band resources. ### Claim 9 (depends on 1) The joint scheduling method according to claim 1, wherein the met CoMP transmission condition is as follows: a difference between reference signal receiving power (RSRP) of a sector where a user equipment resides and RSRP of a sector outside the sector where the user equipment resides is smaller than or equal to a preset threshold, and if the difference between the RSRP of the sector wherein the user equipment resides and the RSRP of the sector outside the sector where the user equipment resides is smaller than or equal to the preset threshold, the user equipment is a CoMP user equipment. ### Claim 10 A joint scheduling apparatus, comprising: a CoMP judging unit, configured to judge whether a Coordinated Multiple Points (CoMP) user equipment exists in user equipments that wait to be scheduled in a sector that participates in joint scheduling, wherein the CoMP user equipment is a user equipment that meets a CoMP transmission condition; and a CoMP scheduling unit, configured to, if a CoMP user equipment exists in the user equipments that wait to be scheduled, schedule the CoMP user equipment that waits to be scheduled and assign CoMP frequency band resources to the scheduled CoMP user equipment according to a size of frequency band resources required by the scheduled CoMP user equipment, wherein the CoMP frequency band resources are partial frequency band resources allocated from frequency band resources of the sector that participates in joint scheduling and are preferentially used by the CoMP user equipment. ### Claim 11 (depends on 10) The joint scheduling apparatus according to claim 10, further comprising: an independent scheduling unit, configured to, when all user equipments that wait to be scheduled are non-CoMP user equipments, obtain a Proportionally Fair (PF) priority corresponding to each user equipment that waits to be scheduled in the sector that participates in joint scheduling and schedule the user equipments that wait to be scheduled in descending PF priority. ### Claim 12 (depends on 10) The joint scheduling apparatus according to claim 10, further comprising: an obtaining unit, configured to, before the CoMP judging unit judges whether a Coordinated Multiple Points CoMP user equipment exists in user equipments that wait to be scheduled, determine a sector that participates in class one scheduling and obtain the PF priority corresponding to each user equipment that waits to be scheduled in the sector that participates in the class one scheduling; and a class one scheduling unit, configured to perform the class one scheduling on the user equipments that wait to be scheduled, wherein the class one scheduling indicates that user equipments are scheduled in descending PF priority and the user equipments scheduled in the class one scheduling are not allowed to share same frequency band resources. ### Claim 13 (depends on 12) The joint scheduling apparatus according to claim 12, wherein the CoMP scheduling unit comprises: a judging module, configured to judge whether a CoMP user equipment exists in user equipments scheduled in the class one scheduling; and a CoMP scheduling module, configured to, after the judging module determines that a CoMP user equipment exists in user equipments scheduled in the class one scheduling, schedule the CoMP user equipment that waits to be scheduled and allow the CoMP user equipment that waits to be scheduled to share same frequency band resources with the CoMP user equipment scheduled in the class one scheduling, wherein the CoMP frequency band resources are frequency band resources occupied by the CoMP user equipment scheduled in the class one scheduling. ### Claim 14 (depends on 13) The joint scheduling apparatus according to claim 13, wherein the CoMP scheduling unit further comprises: an independent scheduling module, configured to, after the judging module determines that no CoMP user equipment exists in user equipments scheduled in the class one scheduling, schedule user equipments that wait to be scheduled in descending PF priority; or the CoMP scheduling module is further configured to, after the judging module determines that no CoMP user equipment exists in user equipments scheduled in class one scheduling, schedule the CoMP user equipment that waits to be scheduled, and assign the CoMP frequency band resources allocated in advance to the scheduled CoMP user equipment according to a size of frequency band resources required by the scheduled CoMP user equipment. ### Claim 15 (depends on 10) The joint scheduling apparatus according to claim 10, further comprising: a remaining judging unit, configured to, before the CoMP judging unit judges whether a Coordinated Multiple Points CoMP user equipment exists in user equipments that wait to be scheduled in the sector that participates in joint scheduling, judge whether a user equipment that waits to be scheduled exists in the sector that participates in joint scheduling, wherein the CoMP judging unit is further configured to, after the remaining judging unit determines that a user equipment that waits to be scheduled exists, execute the judging whether a Coordinated Multiple Points CoMP user equipment exists in user equipments that wait to be scheduled. ### Claim 16 (depends on 10) The joint scheduling apparatus according to claim 10, further comprising: a resource judging unit, configured to, before the remaining judging unit judges whether a user equipment that waits to be scheduled exists in the sector that participates in joint scheduling, judge whether unoccupied frequency band resources exist in each sector among sectors that participate in joint scheduling, wherein the remaining judging unit is further configured to, after the resource judging unit determines that unoccupied frequency band resources exist in the sector, continue to execute the judging whether a user equipment that waits to be scheduled exists. ### Claim 17 (depends on 16) The joint scheduling apparatus according to claim 16, further comprising: a frequency band allocating unit, configured to, before the CoMP judging unit judges whether a Coordinated Multiple Points CoMP user equipment exists in user equipments that wait to be scheduled or before the remaining judging unit judges whether a user equipment that waits to be scheduled exists in the sector that participates in joint scheduling, allocate CoMP frequency band resources from all frequency band resources in advance for the CoMP user equipment that waits to be scheduled to occupy the CoMP frequency band resources. ### Claim 18 (depends on 10) The joint scheduling apparatus according to claim 10, wherein the CoMP scheduling unit further comprises: a user selecting module, configured to determine whether a user equipment that waits to be scheduled is a CoMP user equipment, that is, judge whether a difference between reference signal receiving power (RSRP) of a sector where the user equipment resides and RSRP of a sector outside the sector where the user equipment resides is smaller than or equal to a preset threshold, wherein: if the difference between the RSRP of the sector where the user equipment resides and the RSRP of the sector outside the sector where the user equipment resides is smaller than or equal to the preset threshold, the user equipment is a CoMP user equipment.