Source: https://patents.google.com/patent/US9144085B2/en
Timestamp: 2020-04-06 15:53:12
Document Index: 86621177

Matched Legal Cases: ['Application No. 61', 'Application No. 14186919', 'Application No. 2014', 'Application No. 2012316021', 'Application No. 14186919', 'Application No. 2014227523', 'Application No. 2014112051', 'Application No. 10']

US9144085B2 - Multicast/broadcast service continuity in multi-carrier networks - Google Patents
US9144085B2
US9144085B2 US13/531,848 US201213531848A US9144085B2 US 9144085 B2 US9144085 B2 US 9144085B2 US 201213531848 A US201213531848 A US 201213531848A US 9144085 B2 US9144085 B2 US 9144085B2
US13/531,848
US20130083715A1 (en
2012-06-25 Assigned to INTEL CORPORATION reassignment INTEL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ETEMAD, KAMRAN, ZHANG, YUJIAN
2013-04-04 Publication of US20130083715A1 publication Critical patent/US20130083715A1/en
2015-09-22 Publication of US9144085B2 publication Critical patent/US9144085B2/en
The present application claims priority to U.S. Provisional Patent Application No. 61/542,086, filed Sep. 30, 2011, entitled “ADVANCED WIRELESS COMMUNICATION SYSTEMS AND TECHNIQUES,” the entire disclosure of which is hereby incorporated by reference.
As shown in FIG. 3, eNB 104 may include a communications module 336 and an MBMS module 340 coupled with one another at least as shown. The communications module 336 may be further coupled with one or more of a plurality of antennas 344 of the eNB 104. The communications module 336 may communicate (e.g., transmit and/or receive) with one or more UEs (e.g., UE 108). In various embodiments, the eNB 104 may include at least as many antennas 344 as a number of simultaneous transmission streams transmitted to the UE 108, although the scope of the present disclosure may not be limited in this respect. One or more of the antennas 344 may be alternately used as transmit or receive antennas. Alternatively, or additionally, one or more of the antennas 344 may be dedicated receive antennas or dedicated transmit antennas. Alternatively, or additionally, one or more of the antennas 344 may alternate between communicating in one or more cells 116 a-c.
The MBMS assistance information may further include in indicator of a carrier selection mode to be used by the UE 108. In some embodiments, the carrier selection mode may be a first selection mode that prioritizes selection of carriers that provide MBMS services or a second selection mode that prioritizes carriers based on signal quality (e.g., without regard to whether the carrier offers MBMS services). This carrier selection mode indicator may be used to manage loading of the carriers. With either selection mode, the UE 108 may receive the MBMS service on a “best effort” basis.
For example, if there is low congestion on the MBMS-bearing carrier, the carrier selection mode may be set to the first selection mode and the UE 108 may prioritize the MBMS-bearing carrier if the UE 108 wishes to receive MBMS services. The UE 108 may also receive unicast service on the MBMS-bearing carrier. If there is high congestion, the carrier selection mode may be set to the second selection mode so that the UE 108 will prioritize carriers based on signal quality without regard to whether the carrier transmits MBMS. In that case, the UE 108 may select an MBMS-bearing carrier or a non-MBMS carrier for unicast service, for example based on relative signal quality. The UE 108 may still receive the MBMS service based on a “best effort,” for example, if the UE 108 selects the MBMS-bearing carrier for unicast service and/or the UE 108 has another receiver to receive MBMS service.
In a third level of priority, MBMS may be given priority, but the UE 108 may maintain unicast services on a “best effort” basis. The network 100 may release all guaranteed bit rate (GBR) connections with the UE 108.
a communications module to communicate with an evolved NodeB (eNB) of an evolved universal terrestrial radio access network (E-UTRAN); and
a multimedia broadcast multicast service (MBMS) module to:
transmit an MBMS interest indication message, to the eNB via the communications module, to indicate an interest in an MBMS, the MBMS interest indication message including an MBMS frequency on which the UE is receiving or interested in receiving the MBMS; and
transmit another MBMS interest indication message including a null frequency if the UE is no longer receiving or interested in receiving the MBMS.
15. An apparatus to be employed by a user equipment (UE), the apparatus comprising:
transmit an MBMS interest indication message, to the eNB via the communications module, to indicate an interest in an MBMS, the MBMS interest indication message including a MBMS frequency on which the UE is receiving or interested in receiving the MBMS and a priority indicator to identify a priority of receiving the MBMS on the MBMS frequency over receiving unicast service for the UE, wherein the priority indicator includes four bits to indicate one of four levels of priority.
16. An apparatus to be employed by a user equipment (UE), the apparatus comprising:
transmit an MBMS interest indication message, to the eNB via the communications module, to indicate an interest in an MBMS, the MBMS interest indication message including a MBMS frequency on which the UE is receiving or interested in receiving the MBMS, wherein the MBMS module is to transmit the MBMS interest indication message for the MBMS if:
the MBMS is not offered on any of one or more serving cells that are currently serving the UE;
all receivers of the UE are currently being used to receive transmissions from the serving cells; and
unicast access is permitted on the MBMS frequency of the MBMS.
17. An apparatus to be employed by a first evolved Node B (eNB), the apparatus comprising:
a communications module to communicate with a user equipment (UE) over an evolved universal terrestrial radio access network (E-UTRAN); and
receive, from the UE via the communications module, a first MBMS interest indication message including an MBMS frequency on which the UE is receiving or interested in receiving an MBMS;
receive, from the UE via the communications module, a second MBMS interest indication message including a null frequency to indicate that the UE is no longer receiving or interested in receiving the MBMS; and
transfer the second MBMS interest indication message to a second eNB of the E-UTRAN in anticipation of a handover of the UE from the first eNB to the second eNB.
22. The apparatus of claim 17, wherein the MBMS interest indication message is received for the MBMS if:
unicast access is permitted on the MBMS frequency of the targeted MBMS.
a plurality of antennas coupled to the communications module; and
a wired network adapter coupled to the communications module.
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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ETEMAD, KAMRAN;ZHANG, YUJIAN;REEL/FRAME:028435/0241