5G bandwidth part configuration method in CBRS fixed wireless access network
Various embodiments comprise systems, methods, and apparatus for allocating resources in a 5G network comprising Citizens Broadband Radio Service Device (CBSD) nodes configured for communicating via granted spectrum with customer premises equipment (CPE) supporting wireless access points (WAPs) and the like, wherein an initial small bandwidth part (BWP) is assigned to each CPE, a BWP update process provides to a policy control function a list of devices/capabilities consuming CPE bandwidth so that the PCF may calculate a new bandwidth requirement for the CPE, the new requirement being used by the CPE to generate a CPE UE capability information message for the CBSD node, the CBSD node assigning an appropriately sized BWP for the CPE.
1. A method for allocating resources in a 5G network comprising Citizens Broadband Radio Service Device (CBSD) nodes configured for communicating via granted spectrum with customer premises equipment (CPE) and user equipment (UE) to provide network services thereto, the method comprising:
at a CBSD node, assigning to each CPE connecting thereto a respective low resource bandwidth part (BWP);
at the CBSD node, in response to receiving from a CPE a list of connected devices being supported by the CPE, transmitting the list toward a policy control function (PCF) at a core network serving the CBSD node, the transmitted list being configured to cause the PCF to calculate a CPE bandwidth requirement sufficient to support the list of connected devices;
at the CBSD node, in response to receiving the CPE bandwidth requirement from the PCF, forwarding the CPE bandwidth requirement toward the CPE, the CPE bandwidth requirement being configured to cause the CPE to determine a UE capability information sufficient to support the CPE bandwidth requirement; and
at the CBSD node, in response to receiving from the CPE the determined UE capability information, assigning a BWP to the CPE sufficient to support the determined UE capability information.
2. The method of claim 1 , wherein the low resource BWP is selected to provide sufficient bandwidth for CPE having a UE capability of “low bandwidth 5G terminal.”
3. The method of claim 1 , wherein the low resource BWP comprises a default BWP.
4. The method of claim 1 , wherein the low resource BWP is determined in response to corresponding CPE UE capability information received by the CBSD.
5. The method of claim 4 , wherein the CPE UE capability information comprises at least one of an uplink (UL) bandwidth capability and a downlink (DL) bandwidth capability.
6. The method of claim 5 , wherein the CPE UE capability information comprises at least one of UL buffer size and DL buffer size.
7. The method of claim 1 , wherein the list of connected devices being supported by the CPE includes a list of access terminals (ATs) connected to one or more wireless access points (WAPs) supported by the CPE.
8. The method of claim 1 , wherein the list of connected devices being supported by the CPE includes a list of devices connected to one or more routers supported by the CPE.
9. The method of claim 1 , wherein the list of connected devices being supported by the CPE includes a list of set top boxes (STBs) supported by the CPE.
10. The method of claim 1 , wherein the CPE bandwidth is calculated as:
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11. The method of claim 10 , wherein the RB bandwidth is 180 kHz.
12. A Citizens Broadband Radio Service Device (CBSD) node configured for communicating via granted spectrum with customer premises equipment (CPE) and user equipment (UE) to provide network services thereto, the CBSD node comprising a processor and a tangible and non-transitory memory for storing computer instructions which, when executed by the processor, configure the CBSD node to perform the steps of:
assigning to each CPE connecting thereto a respective low resource bandwidth part (BWP);
in response to receiving from a CPE a list of connected devices being supported by the CPE, transmitting the list toward a policy control function (PCF) at a core network serving the CBSD node, the transmitted list being configured to cause the PCF to calculate a CPE bandwidth requirement sufficient to support the list of connected devices;
in response to receiving the CPE bandwidth requirement from the PCF, forwarding the CPE bandwidth requirement toward the CPE, the CPE bandwidth requirement being configured to cause the CPE to determine a UE capability information sufficient to support the CPE bandwidth requirement; and
in response to receiving from the CPE the determined UE capability information, assigning a BWP to the CPE sufficient to support the determined UE capability information.
13. The CBSD node of claim 12 , wherein the low resource BWP is selected to provide sufficient bandwidth for CPE having a UE capability of “low bandwidth 5G terminal.”
14. The CBSD node of claim 12 , wherein the low resource BWP comprises one of a default BWP and a BWP determined in response to corresponding CPE UE capability information received by the CBSD.
15. The CBSD node of claim 14 , wherein the CPE UE capability information comprises at least one of an uplink (UL) bandwidth capability, a downlink (DL) bandwidth capability, an UL buffer size and a DL buffer size.
16. The CBSD node of claim 12 , wherein the list of connected devices being supported by the CPE includes a list of access terminals (ATs) connected to one or more wireless access points (WAPs) supported by the CPE.
17. The CBSD node of claim 12 , wherein the CBSD node is further configured to request a CPE to transmit a list of connected devices being supported by the CPE in response to a triggering condition.
18. The CBSD node of claim 17 , wherein the triggering condition comprises at least one of the CBSD node detecting a change in CPE traffic, a change in a CPE-connected UE, a change in CPE supported services, and a periodic refresh schedule.
19. Customer premises equipment (CPE) configured for communicating with a Citizens Broadband Radio Service Device (CBSD) node to receive network services therefrom, and configured for communicating with user equipment (UE) to provide network services thereto, the CPE comprising a processor and a tangible and non-transitory memory for storing computer instructions which, when executed by the processor, configure the CPE to perform the steps of:
receiving, from the CBSD node, an initial bandwidth part (BWP) assignment sufficient for CPE associated with low bandwidth CPE UE capability information;
transmitting, toward the CBSD node, a list of connected devices being supported by the CPE, the list of connected devices being configured for processing by a policy control function (PCF) at a core network serving the CBSD node to calculate therefrom a CPE bandwidth requirement sufficient to support the list of connected devices;
in response to receiving the CPE bandwidth requirement, determining a UE capability information sufficient to support the CPE bandwidth requirement; and
transmitting, toward the CBSD node, the determined CPE UE capability information, the determined CPE UE capability information being configured to cause the CBSD to assign to the CPE a BWP sufficient to support the determined CPE UE capability information.
20. The CPE of claim 19 , wherein the determined CPE UE capability information is transmitted to the CBSD node via a UECapabilityinformation message.
21. The CPE of claim 19 , wherein the CPE is further configured to transmit the list of connected devices being supported by the CPE toward the CBSD node in response to a triggering condition.
22. The CPE of claim 21 , wherein the triggering condition comprises the CPE detecting a change in a number of access terminals (ATs) connected to a wireless access point (WAP) supported by the CPE.
23. The CPE of claim 21 , wherein the triggering condition comprises the CPE detecting a change in a number of UE or access terminals (ATs) directly or indirectly supported by the CPE.
24. The CPE of claim 21 , wherein the triggering condition comprises the CPE detecting an activation of a set top box or digital video recorder supported by the CPE.