Method and apparatus for dynamic device capability signaling in wireless communications

Patent metadata

Field	Value
Publication number	US-2016262144-A1
Application number	US-201514788335-A
Country	US
Kind code	A1
Filing date	Jun 30, 2015
Priority date	Mar 3, 2015
Publication date	Sep 8, 2016
Grant date	—

Abstract

Methods and apparatuses of wireless communications are provided to dynamically determine capability information such that potential configuration and/or resource conflicts may be mitigated among multiple connections while one or more of on-going connections are not interrupted. A user equipment (UE) establishes one or more connections with a network. The UE allocates, in a first resource allocation, one or more resources of the UE to the one or more connections. The UE dynamically determines an instantaneous UE capability information (IUCI) of the UE in response to a change from the first resource allocation to a second resource allocation, the IUCI indicative of the capability of the UE during a predetermined time period. The UE transmits the IUCI to the network to mitigate potential resource allocation conflict among the one or more connections while maintaining at least one of the connections.

First claim

What is claimed is:

1 . A method of wireless communication operable at a user equipment (UE), comprising:
establishing, at the UE, one or more connections with a network; allocating, in a first resource allocation, one or more resources of the UE to the one or more connections; dynamically determining an instantaneous UE capability information (IUCI) of the UE in response to a change from the first resource allocation to a second resource allocation, the IUCI indicative of the capability of the UE during a predetermined time period; and transmitting the IUCI to the network to mitigate potential resource allocation conflict among the one or more connections while maintaining at least one of the connections.

2 . The method of claim 1 , wherein the transmitting the IUCI comprises at least one of:
transmitting the IUCI as one or more PHY signals; transmitting the IUCI as one or more medium access control (MAC) protocol data units (PDUs); transmitting the IUCI as one or more radio link control (RLC) PDUs; transmitting the IUCI as one or more packet data convergence protocol (PDCP) PDUs; or transmitting the IUCI as one or more radio resource control (RRC) messages.

3 . The method of claim 1 , wherein the IUCI comprises a predetermined channel-quality indicator (CQI) value configured to indicate the capability of the UE corresponding to the one or more connections.

4 . The method of claim 1 , wherein the IUCI comprises a MAC control element configured to indicate the capability of the UE corresponding to the one or more connections.

5 . The method of claim 1 , wherein the transmitting the IUCI comprises:
transmitting the IUCI as PHY signals for a first time period and medium access control (MAC) PDU for a second time period, wherein the first time period is shorter than the second time period.

6 . The method of claim 1 , wherein the one or more connections comprise a plurality of Radio Resource Control (RRC) connections.

7 . The method of claim 1 , wherein the dynamically determining the IUCI comprises:
while maintaining at least one of the connections, determining a first IUCI in a first transmission time interval (TTI) and a second IUCI in a second TTI, wherein the first IUCI is different from the second IUCI, corresponding to a change in the allocation of the one or more resources.

8 . The method of claim 1 , wherein the IUCI comprises at least one of throughput, allocation bandwidth, duplex mode, measurement availability status, or interference cancellation status.

9 . The method of claim 1 , wherein the one or more resources comprise at least one of communication channels, processing power, radio frequency resources, or a memory resource.

10 . The method of claim 1 , wherein the IUCI is configured to indicate a valid time period in which the IUCI is considered by the network.

11 . A method of wireless communication operable at a network node, comprising:
establishing, at the network node, one or more connections with a user equipment (UE); allocating, in a first resource allocation, one or more resources of the network node to the one or more connections; dynamically determining an instantaneous network capability information (INCI) of the network node in response to a change from the first resource allocation to a second resource allocation, the INCI indicative of the capability of the network node during a predetermined time period; and transmitting the INCI to the UE to mitigate potential resource allocation conflict among the one or more connections while maintaining at least one of the connections.

12 . The method of claim 11 , wherein the transmitting the INCI comprises at least one of:
transmitting the INCI as one or more PHY signals; transmitting the INCI as one or more medium access control (MAC) protocol data units (PDUs); transmitting the INCI as one or more radio link control (RLC) PDUs; or transmitting the INCI as one or more packet data convergence protocol (PDCP) PDUs, wherein the INCI comprises at least one of throughput, allocation bandwidth, duplex mode, measurement availability status, or interference cancellation status.

13 . The method of claim 11 , wherein the one or more resources comprise at least one of communication channels, processing power, radio frequency resources, or memory resources.

14 . The method of claim 11 , wherein the one or more connections comprise a plurality of Radio Resource Control (RRC) connections.

15 . The method of claim 11 , wherein the determining the INCI comprises:
while maintaining at least one of the connections, determining a first INCI in a first transmission time interval (TTI) and a second INCI in a second TTI, wherein the first INCI is different from the second INCI corresponding to the change in the allocation of the one or more resources.

16 . A user equipment (UE), comprising:
a communication interface configured to establish one or more connections with a network; a memory comprising software; and at least one processor operatively coupled to the communication interface and the memory, wherein the at least one processor when configured by the software, comprises:
a resource control block configured to allocate, in a first resource allocation, one or more resources of the UE to the one or more connections;
a capability determination block configured to dynamically determine an instantaneous UE capability information (IUCI) of the UE in response to a change from the first resource allocation to a second resource allocation, the IUCI indicative of the capability of the UE during a predetermined time period; and
a capability update block configured to transmit the IUCI to the network to mitigate potential resource allocation conflict among the one or more connections while maintaining at least one of the connections.

17 . The UE of claim 16 , wherein the capability update block is configured to at least one of:
transmit the IUCI as one or more PHY signals; transmit the IUCI as one or more medium access control (MAC) protocol data units (PDUs); transmit the IUCI as one or more radio link control (RLC) PDUs; transmit the IUCI as one or more packet data convergence protocol (PDCP) PDUs; or transmit the IUCI as one or more radio resource control (RRC) messages.

18 . The UE of claim 16 , wherein the IUCI comprises a predetermined channel-quality indicator (CQI) value configured to indicate the capability of the UE corresponding to the one or more connections.

19 . The UE of claim 16 , wherein the IUCI comprises a MAC control element configured to indicate the capability of the UE corresponding to the one or more connections.

20 . The UE of claim 16 , wherein the capability update block is configured to:
transmit the IUCI as PHY signals for a first time period and medium access control (MAC) PDU for a second time period, wherein the first time period is shorter than the second time period.

21 . The UE of claim 16 , wherein the one or more connections comprise a plurality of Radio Resource Control (RRC) connections.

22 . The UE of claim 16 , wherein the capability determination block is configured to:
while maintaining at least one of the connections, determine a first IUCI in a first transmission time interval (TTI) and a second IUCI in a second TTI, wherein the first IUCI is different from the second IUCI, corresponding to a change in the allocation of the one or more resources.

23 . The UE of c

Assignees

• Qualcomm Inc

Inventors

• Kitazoe Masato
• Kubota Keiichi
• Gheorghiu Valentin Alexandru

Classifications

• H04W72/51 Primary

  based on terminal or device properties · CPC title

• H04L5/0057

  Physical resource allocation for CQI · CPC title

• H04W76/27

  Transitions between radio resource control [RRC] states · CPC title

• H04W8/22

  Processing or transfer of terminal data, e.g. status or physical capabilities · CPC title

• H04W76/10

  Connection setup · CPC title