System for managing uplink quality of service (QoS) in cellular network
View Patent ↗A cellular communication system includes a method for managing uplink (UL) quality-of-service (QoS) in a two-hop wireless cellular communication system, including determining a count of UL QoS requests received from each user equipment (UE) and determining a served-to-requested ratio that is a ratio of a the number of bytes of UL data served to each UE by a mobile relay to the number bytes of UL data requested by each UE from the mobile relay. A UE subsystem of the mobile relay determines if any UEs are experiencing low UL QoS based on the number of UL QoS requests and the served-to-requested ratio. In response, a macro base station allocates network resources for improving the UL QoS provided to the set of UEs.
1. A cellular communication system, comprising:
a macro base station that operates in accordance with a cellular protocol; and
at least one mobile relay in communication with the macro base station and a plurality of user equipments (UEs), wherein the at least one mobile relay transmits uplink (UL) quality of service (QoS) status to the macro base station, the UL QoS status corresponding to a first set of UEs that receive UL QoS below a predetermined level, wherein for each UE of the first set of UEs, a count of UL QoS requests received from the UE by the at least one mobile relay is greater than a first predetermined value and a served-to-requested ratio that is a ratio of a count of bytes of UL data served to the UE by the at least one mobile relay to a count of bytes of UL data requested by the UE from the at least one mobile relay is less than a second predetermined value,
wherein the UL QoS status is transmitted as a buffer status packet that indicates occupancy of one or more buffers of the first set of UEs,
wherein the cellular protocol includes at least one of High Speed Packet Access+ (HSPA+) cellular protocol and Long Term Evolution (LTE) cellular protocol,
wherein for the HSPA+ cellular protocol, the buffer status packet includes a predetermined bit count that indicates a count of bytes stored in the one or more buffers of the first set of UEs that have a happy bit set to unhappy status, and
wherein for the LTE cellular protocol, the buffer status packet includes a predetermined count of bits that indicates a count of bytes stored in the one or more buffers of the first set of UEs.
2. The cellular communication system of claim 1 , wherein the at least one mobile relay includes a UE subsystem and a base station subsystem, wherein the UE subsystem of the at least one mobile relay communicates with the macro base station and the base station subsystem communicates with the plurality of UEs.
3. The cellular communication system of claim 2 , wherein the base station subsystem determines the first set of UEs.
4. The cellular communication system of claim 3 , wherein the UE subsystem of the at least one mobile relay transmits the UL QoS status as the buffer status packet to the macro base station.
5. The cellular communication system of claim 1 , wherein the first set of UEs is determined based on a predetermined time duration.
6. A method for regulating uplink (UL) quality of service (QoS) in a cellular communication system including a core network, a macro base station that communicates over the core network, at least one mobile relay in communication with the macro base station, and a plurality of user equipments (UEs) in communication with the at least one mobile relay, the method comprising:
generating a count of uplink (UL) quality of service (QoS) requests received from each UE;
determining a served-to-requested ratio that is a ratio of a byte count of UL data served to each UE by the at least one mobile relay to a byte count of UL data requested by each UE from the at least one mobile relay;
determining a first set of UEs that have the count of UL QoS requests that is greater than a first predetermined value and the served-to-requested ratio that is less than a second predetermined value;
creating a buffer status packet including a UL QoS status corresponding to the first set of UEs of the at least one mobile relay, wherein the UL QoS status indicates a buffer occupancy of one or more buffers of the first set of UEs,
wherein the macro base station, the at least one mobile relay, and the plurality of UEs operate in accordance with a cellular protocol that includes at least one of High Speed Packet Access (HSPA+) cellular protocol and Long Term Evolution (LTE) cellular protocol,
wherein for the HSPA+ cellular protocol, the buffer status packet includes a predetermined bit count that indicates a count of bytes stored in the one or more buffers of the first set of UEs that have a happy bit set to unhappy status, and
wherein for the LTE cellular protocol, the buffer status packet includes a predetermined count of bits that indicates a count of bytes stored in the one or more buffers of the first set of UEs; and
transmitting the buffer status packet from the at least one mobile relay to the macro base station.
7. The method of claim 6 , wherein the at least one mobile relay includes a UE subsystem and a base station subsystem, wherein the UE subsystem communicates with the macro base station and the base station subsystem communicates with the plurality of UEs.
8. The method of claim 7 , wherein the base station subsystem determines the first set of UEs.
9. The method of claim 8 , wherein the UE subsystem of transmits the buffer status packet including the UL QoS status corresponding to the first set of UEs to the macro base station.
10. The method of claim 6 , further comprising establishing an enhanced session between the plurality of UEs and the macro base station by way of the at least one mobile relay.
11. The method of claim 10 , wherein establishing the enhanced session further comprises:
initiating a connection request from a UE of the plurality of UEs for establishing an enhanced session between the UE and the core network by way of the macro base station;
holding the connection request from the UE by the base station subsystem of the at least one mobile relay until a connection between the UE subsystem of the at least one mobile relay and the core network is established by way of the macro base station;
establishing a connection between the base station and UE subsystems of the at least one mobile relay;
establishing the connection between the UE subsystem of the at least one mobile relay and the core network by way of the macro base station; and
releasing the connection request from the UE by the base station subsystem of the at least one mobile relay when the connection between the UE subsystem of the at least one mobile relay and the core network is established by way of the macro base station to establish the enhanced session.
12. The method of claim 6 , wherein the first set of UEs is determined based on a predetermined duration of time.
13. A method for regulating uplink (UL) quality of service (QoS) in a cellular communication system including a core network, a macro base station in communication with the core network, at least one mobile relay in communication with the macro base station, and a plurality of user equipments (UEs) in communication with the at least one mobile relay, the method comprising:
initiating a connection request from a UE of the plurality of UEs for establishing an enhanced session between the UE and the core network by way of the macro base station;
holding the connection request from the UE by the at least one mobile relay until a connection between the at least one mobile relay and the core network is established by way of the macro base station;
establishing a connection between the macro base station and a UE subsystem of the at least one mobile relay, thereby establishing a connection between the UE subsystem of the at least one mobile relay and the core network by way of the macro base station;
releasing the connection request from the UE by the base station subsystem of the at least one mobile relay when the connection between the UE subsystem of the at least one mobile relay and the core network is established;
generating a count of uplink (UL) quality of service (QoS) requests received from each UE;
determining a served-to-requested ratio that is a ratio of a count of bytes of UL data served to each UE by the at least one mobile relay to a count of bytes of UL data requested by each UE from the at least one mobile relay;
determining a first set of UEs by the base station subsystem of the at least one mobile relay having the count of UL QoS requests greater than a first predetermined value and the served-to-requested ratio less than a second predetermined value;
creating a buffer status packet including a UL QoS status for the first set of UEs by the UE subsystem of the at least one mobile relay, wherein the buffer status packet indicates a buffer occupancy of one or more buffers of the first set of UEs,
wherein the macro base station, the at least one mobile relay, and the plurality of UEs operate in accordance with a cellular protocol that includes at least one of High Speed Packet Access (HSPA+) cellular protocol and Long Term Evolution (LTE) cellular protocol,
wherein for the HSPA+ cellular protocol, the buffer status packet includes a predetermined bit count that indicates a count of bytes stored in the one or more buffers of the first set of UEs that have a happy bit set to unhappy status, and
wherein for the LTE cellular protocol, the buffer status packet includes a predetermined count of bits that indicates a count of bytes stored in the one or more buffers of the first set of UEs; and
transmitting the buffer status packet by the UE subsystem of the at least one mobile relay to the macro base station.