초록 ▼

In a wireless code-division multiple access (CDMA) system (100), a talkgroup (101) of subscriber units is provided. A sub-group (102) of subscriber units, forming a part of the talkgroup is assigned at least one inbound code (416-417). The entire talkgroup is assigned an outbound code (415). Members

In a wireless code-division multiple access (CDMA) system (100), a talkgroup (101) of subscriber units is provided. A sub-group (102) of subscriber units, forming a part of the talkgroup is assigned at least one inbound code (416-417). The entire talkgroup is assigned an outbound code (415). Members of the sub-group may simultaneously transmit voice information (410-411) using the at least one inbound code, which voice information is summed (412) and re-transmitted to the talkgroup using the outbound code. Subscriber units in the talkgroup, but not included in the sub-group, are allowed to transmit voice information only after requesting, and receiving, an additional inbound code.

대표청구항 ▼

[ We claim:] [1.] In a wireless code-division multiple access system comprising a plurality of subscriber units in wireless communication with a fixed infrastructure, a method for the fixed infrastructure to establish a talkgroup call, the method comprising steps of:receiving, from a first subscribe

[ We claim:] [1.] In a wireless code-division multiple access system comprising a plurality of subscriber units in wireless communication with a fixed infrastructure, a method for the fixed infrastructure to establish a talkgroup call, the method comprising steps of:receiving, from a first subscriber unit of the plurality of subscriber units, a request for the talkgroup call, the request comprising an identity of the first subscriber unit and an identity of a talkgroup;identifying, based on the identity of the talkgroup, a talkgroup of subscriber units comprising at least two subscriber units of the plurality of subscriber units;identifying, based on the identity of the first subscriber unit, a sub-group of subscriber units of the talkgroup;assigning an outbound code to the talkgroup; andassigning, in a one-to-one manner, at least one inbound code to the sub-group.